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52686465
|
10.1016/j.pscychresns.2012.09.001
|
International audienceAnomalous activations of the prefrontal cortex (PFC) and posterior cerebral areas have been reported in previous studies of working memory in schizophrenia. Several interpretations have been reported: e.g., neural inefficiency, the use of different strategies and differences in the functional organization of the cerebral cortex. To better understand these abnormal activations, we investigated the cerebral bases of a working memory component process, namely refreshing (i.e., thinking briefly of a just-activated representation). Fifteen patients with schizophrenia and 15 control subjects participated in this fMRI study. Participants were told that whenever they saw a word on the screen, they had to read it silently to themselves (read and repeat conditions), and when they saw a dot, they had to think of the just-previous word (refresh condition). The refresh condition (in comparison with the read condition) was associated with increased activation in the left inferior frontal gyrus (T=3.55, p=0.009) and decreased connectivity within the prefrontal cortex and between the prefrontal and parietal cortices (T(s)>4.09, p(s)<0.05) in patients with schizophrenia in comparison with control subjects. These results suggest that prefrontal dysfunctions in schizophrenia might be related to a defective ability to initiate (rather than to execute) specific cognitive processes
|
Hyperfrontality and hypoconnectivity during refreshing in schizophrenia.
|
hyperfrontality and hypoconnectivity during refreshing in schizophrenia.
|
audienceanomalous activations prefrontal cortex posterior cerebral schizophrenia. interpretations e.g. inefficiency cerebral cortex. abnormal activations cerebral bases refreshing i.e. thinking briefly fifteen schizophrenia participated fmri study. told whenever word screen read silently read repeat think word refresh refresh read inferior frontal gyrus connectivity prefrontal cortex prefrontal parietal cortices schizophrenia subjects. prefrontal dysfunctions schizophrenia defective initiate execute
|
exact_dup
|
[
"52195571"
] |
52698807
|
10.1007/s10009-008-0064-3
|
International audienceFast acceleration of symbolic transition systems (Fast) is a tool for the analysis of systems manipulating unbounded integer variables. We check safety properties by computing the reachability set of the system under study. Even if this reachability set is not necessarily recursive, we use innovative techniques, namely symbolic representation, acceleration and circuit selection, to increase convergence. Fast has proved to perform very well on case studies. This paper describes the tool, from the underlying theory to the architecture choices. Finally, Fast capabilities are compared with those of other tools. A range of case studies from the literature is investigated
|
FAST: acceleration from theory to practice
|
fast: acceleration from theory to practice
|
audiencefast acceleration symbolic manipulating unbounded integer variables. check reachability study. reachability necessarily recursive innovative symbolic acceleration circuit convergence. proved studies. describes architecture choices. capabilities tools.
|
exact_dup
|
[
"51445215"
] |
52710935
|
10.1002/jgre.20068
|
International audienceThe thermal evolution of magma oceans produced by collision with giant impactors late in accretion is expected to depend on the composition and structure of the atmosphere through the greenhouse effect of CO2 and H2O released from the magma during its crystallization. In order to constrain the various cooling timescales of the system, we developed a 1D parameterized convection model of a magma ocean coupled with a 1D radiative-convective model of the atmosphere. We conducted a parametric study and described the influences of the initial volatile inventories, the initial depth of the magma ocean and the Sun-planet distance. Our results suggest that a steam atmosphere delays the end of the magma ocean phase by typically 1 Myr. Water vapor condenses to an ocean after 0.1 Myr, 1.5 Myr and 10 Myr for, respectively, Mars, Earth and Venus. This time would be virtually infinite for an Earth-sized planet located at less than 0.66 AU from the Sun. Using a more accurate calculation of opacities, we show that Venus is much closer to this threshold distance than in previous models. So there are conditions such as no water ocean is formed on Venus. Moreover, for Mars and Earth, water ocean formation time scales are shorter than typical time gaps between major impacts. This implies that successive water oceans may have developed during accretion, making easier the loss of their atmospheres by impact erosion. On the other hand, Venus could have remained in the magma ocean stage for most of its accretion
|
Thermal evolution of an early magma ocean in interaction with the atmosphere
|
thermal evolution of an early magma ocean in interaction with the atmosphere
|
audiencethe magma oceans collision giant impactors accretion atmosphere greenhouse released magma crystallization. constrain cooling timescales parameterized convection magma ocean radiative convective atmosphere. parametric influences volatile inventories magma ocean planet distance. steam atmosphere delays magma ocean myr. vapor condenses ocean mars earth venus. virtually infinite earth sized planet sun. opacities venus closer models. ocean venus. mars earth ocean shorter gaps impacts. successive oceans accretion easier atmospheres erosion. venus remained magma ocean accretion
|
exact_dup
|
[
"47083631"
] |
52712912
|
10.1088/1748-9326/10/8/084013
|
International audienceThe increased exposure of human populations to heat stress is one of the likely consequences of global warming, and it has detrimental effects on health and labor capacity. Here, we consider the evolution of heat stress under climate change using 21 general circulation models (GCMs). Three heat stress indicators, based on both temperature and humidity conditions, are used to investigate present-day model biases and spreads in future climate projections. Present day estimates of heat stress indicators from observational data shows that humid tropical areas tend to experience more frequent heat stress than other regions do, with a total frequency of heat stress 250–300 d yr−1. The most severe heat stress is found in the Sahel and south India. Present-day GCM simulations tend to underestimate heat stress over the tropics due to dry and cold model biases. The model based estimates are in better agreement with observation in mid to high latitudes, but this is due to compensating errors in humidity and temperature. The severity of heat stress is projected to increase by the end of the century under climate change scenario RCP8.5, reaching unprecedented levels in some regions compared with observations. An analysis of the different factors contributing to the total spread of projected heat stress shows that spread is primarily driven by the choice of GCMs rather than the choice of indicators, even when the simulated indicators are bias-corrected. This supports the utility of the multi-model ensemble approach to assess the impacts of climate change on heat stress
|
Estimating heat stress from climate-based indicators: present-day biases and future spreads in the CMIP5 global climate model ensemble
|
estimating heat stress from climate-based indicators: present-day biases and future spreads in the cmip5 global climate model ensemble
|
audiencethe consequences warming detrimental labor capacity. circulation gcms indicators humidity biases spreads projections. indicators observational humid tropical tend frequent sahel india. tend underestimate tropics cold biases. latitudes compensating humidity temperature. severity projected century reaching unprecedented observations. contributing spread projected spread primarily gcms indicators indicators corrected. supports utility ensemble impacts
|
exact_dup
|
[
"52674089"
] |
52718574
|
10.1017/jfm.2013.250
|
International audienceThe Ekman flow, an exact solution of the Boussinesq equations with rotation, is a prototype flow for both atmospheric and oceanic boundary layers. The effect of stratification on the finite-amplitude longitudinal rolls developing in the Ekman flow and their three-dimensional stability is studied by means of linearized and nonlinear numerical simulations. Similarities and differences with respect to billows developing in the Kelvin-Helmholtz (KH) unidirectional stratified shear flow are discussed. Prandtl number effects are investigated as well as the role played by the buoyant-convective instability. For low Prandtl number, the amplitude of the saturated rolls vanishes at the critical bulk Richardson number, while at high Prandtl number, finite-amplitude rolls are found. The Prandtl number also affects how the growth rate of the secondary instability evolves as the Richardson number is increased. For low Prandtl number, the growth rate decreases as the Richardson number increases while it remains significant for large Prandtl number over the range of stratification studied. This behaviour is likely a result of the differing amplitudes of the roll vortices. Furthermore, the most unstable wave vector is much lower than for the secondary instability of KH billows. Examination of the energetics of the secondary instability shows that buoyant-convective instability is present locally at high Reynolds and Prandtl numbers but plays an overall minor role despite the presence in the base flow of statically unstable regions characterized by a high Richardson number. © 2013 Cambridge University Press
|
Secondary instability of the stably stratified Ekman layer
|
secondary instability of the stably stratified ekman layer
|
audiencethe ekman boussinesq prototype oceanic layers. stratification longitudinal rolls ekman linearized simulations. similarities billows kelvin helmholtz unidirectional stratified discussed. prandtl played buoyant convective instability. prandtl saturated rolls vanishes richardson prandtl rolls found. prandtl affects instability evolves richardson increased. prandtl richardson prandtl stratification studied. differing amplitudes roll vortices. unstable instability billows. examination energetics instability buoyant convective instability locally reynolds prandtl plays minor statically unstable richardson number.
|
exact_dup
|
[
"52898440"
] |
52732959
|
10.1088/0004-6256/141/2/67
|
The original publication is available at http://iopscience.iop.org/1538-3881/International audiencePluto and its main satellite, Charon, occulted the same star on 2008 June 22. This event was observed from Australia and La Réunion Island, providing the east and north Charon Plutocentric offset in the sky plane (J2000): X= + 12,070.5 ± 4 km (+ 546.2 ± 0.2 mas), Y= + 4,576.3 ± 24 km (+ 207.1 ± 1.1 mas) at 19:20:33.82 UT on Earth, corresponding to JD 2454640.129964 at Pluto. This yields Charon's true longitude L= 153.483 ± 0fdg071 in the satellite orbital plane (counted from the ascending node on J2000 mean equator) and orbital radius r= 19,564 ± 14 km at that time. We compare this position to that predicted by (1) the orbital solution of Tholen & Buie (the "TB97" solution), (2) the PLU017 Charon ephemeris, and (3) the solution of Tholen et al. (the "T08" solution). We conclude that (1) our result rules out solution TB97, (2) our position agrees with PLU017, with differences of ΔL= + 0.073 ± 0fdg071 in longitude, and Δr= + 0.6 ± 14 km in radius, and (3) while the difference with the T08 ephemeris amounts to only ΔL= 0.033 ± 0fdg071 in longitude, it exhibits a significant radial discrepancy of Δr= 61.3 ± 14 km. We discuss this difference in terms of a possible image scale relative error of 3.35 × 10-3in the 2002-2003 Hubble Space Telescope images upon which the T08 solution is mostly based. Rescaling the T08 Charon semi-major axis, a = 19, 570.45 km, to the TB97 value, a = 19636 km, all other orbital elements remaining the same ("T08/TB97" solution), we reconcile our position with the re-scaled solution by better than 12 km (or 0.55 mas) for Charon's position in its orbital plane, thus making T08/TB97 our preferred solution
|
Constraints on Charon's Orbital Elements from the Double Stellar Occultation of 2008 June 22
|
constraints on charon's orbital elements from the double stellar occultation of 2008 june 22
|
publication audiencepluto satellite charon occulted australia réunion island east charon plutocentric offset earth pluto. charon longitude satellite orbital counted ascending equator orbital time. orbital tholen buie charon ephemeris tholen agrees longitude ephemeris amounts longitude exhibits discrepancy hubble telescope mostly based. rescaling charon orbital reconcile scaled charon orbital preferred
|
exact_dup
|
[
"52662244"
] |
52734259
|
10.1063/1.3330636
|
Preliminary results have been presented elsewhere,* in this paper we go into more detailed analysis, including synthetic interferogram, and complete or correct some values, leading to a refined conclusion. * C.Stehlé, et al, Laser & Part.Beams 2010International audienceWe have studied the dynamics of strong radiative shocks generated with the high-energy subnanosecond iodine laser at Prague Asterix Laser System facility (Prague) over long time scales, up to 100 ns. These shock waves are characterized by a developed radiative precursor, a radiation driven ionization wave in front of the density jump of the shock. Electronic density profiles are measured at different times after the laser pulse and at different distances from the axis of the shock tube. A new feature, described as a split precursor, has been observed. Comparisons with two-dimensional computations are shown
|
Measure of precursor electron density profiles of laser launched radiative shocks
|
measure of precursor electron density profiles of laser launched radiative shocks
|
preliminary elsewhere synthetic interferogram refined conclusion. c.stehlé part.beams audiencewe radiative shocks subnanosecond iodine prague asterix facility prague shock radiative precursor ionization front jump shock. distances shock tube. split precursor observed. comparisons computations
|
exact_dup
|
[
"47106017",
"52691292"
] |
52735301
|
10.1016/j.tecto.2011.02.010
|
International audienceReactions involving clay minerals during low-grade metamorphism at the depth of an ancient accretionary complex in the Shimanto Belt, Kyushu, Japan, were studied by integrated transmission electron microscopy-energy dispersive X-ray spectroscopy and X-ray diffraction analyses of the bulk rock and clay fraction. The analyzed metasediment (the Kitagawa unit) contain an incipient sub-horizontal slaty cleavage. Illite crystallinity data and mica b dimensions indicate that the conditions of metamorphic deformation were anchizone-epizone grade and intermediate pressure. Cleavage formation was linked to two reactions involving clay minerals: (1) the recrystallization of 1M-dominant matrix mica, inherited from the original sedimentary fabric, into thick, defect-free 2M1 packets along cleavage planes; and (2) the formation of chlorite from 7 Å berthierine. Balanced equations among the clay phases, based on compositional data and their relative abundance, suggest that the decomposition of matrix mica resulted in the formation of paragenetic mica and chlorite along the cleavage planes, without significant elemental outflux. Although a modal increase in phyllosilicates is not indicated by the data, the growth of chlorite and mica along cleavage planes may have a large influence on the rheological properties of a décollement and may be related to the occurrence of the seismic-aseismic transition at ~ 350 °C
|
Low-grade metamorphism around the down-dip limit of seismogenic subduction zones: Example from an ancient accretionary complex in the Shimanto Belt, Japan
|
low-grade metamorphism around the down-dip limit of seismogenic subduction zones: example from an ancient accretionary complex in the shimanto belt, japan
|
audiencereactions involving clay minerals grade metamorphism ancient accretionary shimanto belt kyushu microscopy dispersive spectroscopy diffraction rock clay fraction. metasediment kitagawa incipient slaty cleavage. illite crystallinity mica metamorphic deformation anchizone epizone grade pressure. cleavage involving clay minerals recrystallization mica inherited sedimentary fabric thick defect packets cleavage planes chlorite berthierine. balanced clay compositional abundance decomposition mica resulted paragenetic mica chlorite cleavage planes elemental outflux. modal phyllosilicates chlorite mica cleavage planes rheological décollement occurrence seismic aseismic
|
exact_dup
|
[
"54025301"
] |
52737283
|
10.1016/j.jastp.2010.02.021
|
International audienceWe hereby present a review on solar oblateness measurements. By emphasizing historical data, we illustrate how the discordance between experimental results can lead to substantial improvements in the building of new technical apparatus as well as to the emergence of new ideas to develop new theories. We stress out the need to get accurate data from space to enhance our knowledge of the solar core in order to develop more precise ephemerids and ultimately build possible new gravitational theories
|
A brief history of the solar oblateness. A review
|
a brief history of the solar oblateness. a review
|
audiencewe hereby oblateness measurements. emphasizing historical illustrate discordance substantial improvements apparatus emergence ideas theories. enhance precise ephemerids ultimately build gravitational
|
exact_dup
|
[
"52786609"
] |
52790760
|
10.1007/s10040-009-0470-y
|
International audienceIn aquifers with variable permeability, the water exchanges between high and low permeability regions are controlled by the hydraulic head gradient. Past studies have addressed this problem mainly considering steadystate hydraulic conditions. To study such exchanges during water-table fluctuations, a spring was equipped with a water-gate that creates 10-meter artificial fluctuations of the water table. The water exchanges are discussed with respect to hydrochemical and pressure measurements in the groundwater. With successive water-table fluctuations the mineralization and pH decrease, but the bicarbonate content increases in response to carbon dioxide dissolution . At this scale of single fractures and surroundings, the hydrochemistry allows water flows from low or high permeability discontinuities to be discriminated. During hydraulic head fluctuations, the waters from low and high permeability discontinuities become mixed. During water-table rise, the low-permeability matrix contributed to the refilling of the permeable faults and to the mixing of the waters. Dynamic flows in the opposite direction to the hydraulic gradient can expel mineralized water, pushing it towards permeable discontinuities. This mechanism could be the cause of the peak in the mineralisation recorded in some karst springs at the start of flood events
|
Hydraulic interactions between fractures and bedding planes in a carbonate aquifer studied by means of experimentally induced water-table fluctuations (Coaraze experimental site, southeastern France)
|
hydraulic interactions between fractures and bedding planes in a carbonate aquifer studied by means of experimentally induced water-table fluctuations (coaraze experimental site, southeastern france)
|
audiencein aquifers permeability exchanges permeability hydraulic gradient. addressed steadystate hydraulic conditions. exchanges spring equipped gate creates meter artificial table. exchanges hydrochemical groundwater. successive mineralization bicarbonate dioxide dissolution fractures surroundings hydrochemistry flows permeability discontinuities discriminated. hydraulic waters permeability discontinuities mixed. permeability contributed refilling permeable faults waters. flows opposite hydraulic expel mineralized pushing permeable discontinuities. mineralisation karst springs flood
|
exact_dup
|
[
"52669335",
"52745274",
"54026203",
"54045661"
] |
52804316
|
10.1007/978-90-481-2530-2-34
|
ISBN: 978-90-481-2529-6International audienceIn this paper, we investigate a new approach for the spectrum allocation in UWB systems. This approach consists in a cross-layer scheme that takes into consideration the different users channel quality and quality of service (QoS) requirements. The new scheme is based on the WiMedia solution proposed for multiband OFDM UWB systems. The main objective is to propose a low-complexity solution for the spectrum allocation that can manage all the users constraints. Thus, we study the optimal solution of the spectrum allocation and formulate it as a convex optimization problem. Then, we show that our proposed scheme reduces significantly the complexity of the optimal solution. Moreover, we show through simulations, that the new approach and the optimal solution have close performance in term of error rate and they outperform WiMedia solution proposed for UWB systems
|
DYNAMIC CROSS-LAYER SPECTRUM ALLOCATION FOR MULTI-BAND HIGH-RATE UWB SYSTEMS
|
dynamic cross-layer spectrum allocation for multi-band high-rate uwb systems
|
isbn audiencein allocation systems. consideration requirements. wimedia multiband ofdm systems. propose allocation manage constraints. allocation formulate convex problem. reduces solution. outperform wimedia
|
exact_dup
|
[
"48250897",
"53017106"
] |
52811742
|
10.1007/s12665-014-3087-y
|
Special Issue : Sustainable Water Management in Central Asia .International audienceIn the Himalayas, the consequences of climate change are a fairly debated issue, mainly questioning the availability of water resources to the lowland population. North of the monsoon Himalayas, a semi-arid, continental climate prevails and settlements rely economically mostly on irrigated crops, high altitude rangelands, trade and tourism. The upper Kali Gandaki (Mustang) is situated in this area, with sharp contrasts between valley bottoms (\3,000 m) and high, glaciated peaks (up to [8,000 m). The impacts of climate change may appear in different ways. Gullying is common, and might increase with greater climate variability. Increased ground instabilities (earth-flows and occasional debris flows) affecting extensive shale/marly substrates are also expected, linked to changes in snow cover and seasonality. Similarly, the combination of higher snowfall and rapid melting may favour the occurrence of flash floods. The possibility of glacial outburst floods is less probable because of the present limited glaciation. Eventually, permafrost melting may induce rock avalanches down the steepest cliffs and might impact the adjacent valley floors. Collectively, these hazards will affect irrigation canals and fields, new infrastructures and the associated growing settlements. Water availability in the near future is more difficult to predict; however, any change in the amount and nature of precipitation may affect groundwater reserves, hence spring discharge and runoff, with consequences for agricultural products. Eventually, the overall potential increase in natural hazards may jeopardize the development of small markets and the good connection of these upper valleys to the main urban centres of Nepal, a country with a very low economic and social capacity to adjust
|
Natural hazards versus climate change and their potential impacts in the dry, northern Himalayas: focus on the upper Kali Gandaki (Mustang District, Nepal)
|
natural hazards versus climate change and their potential impacts in the dry, northern himalayas: focus on the upper kali gandaki (mustang district, nepal)
|
sustainable asia .international audiencein himalayas consequences fairly debated questioning availability lowland population. monsoon himalayas arid continental prevails settlements rely economically mostly irrigated crops altitude rangelands trade tourism. kali gandaki mustang situated sharp contrasts valley bottoms glaciated impacts ways. gullying variability. instabilities earth flows occasional debris flows affecting extensive shale marly substrates snow cover seasonality. snowfall melting favour occurrence flash floods. glacial outburst floods probable glaciation. eventually permafrost melting induce rock avalanches steepest cliffs adjacent valley floors. collectively hazards irrigation canals infrastructures growing settlements. availability predict precipitation groundwater reserves spring discharge runoff consequences agricultural products. eventually hazards jeopardize markets connection valleys centres nepal adjust
|
exact_dup
|
[
"47088276"
] |
52825741
|
10.1016/j.socscimed.2011.08.009
|
International audienceThe literature reports an association between neighbourhood deprivation and individual depression after adjustment for individual factors. The present paper investigates whether vulnerability to neighbourhood features is influenced by individual "activity space" (i.e., the space within which people move about or travel in the course of their daily activities). It can be assumed that a deprived residential environment can exert a stronger influence on the mental health of people whose activity space is limited to their neighbourhood of residence, since their exposure to their neighbourhood would be greater. Moreover, we studied the relationship between activity space size and depression. A limited activity space could indeed reflect spatial and social confinement and thus be associated with a higher risk of being depressed, or, conversely, it could be linked to a deep attachment to the neighbourhood of residence and thus be associated with a lower risk of being depressed. Multilevel logistic regression analyses of a representative sample consisting of 3011 inhabitants surveyed in 2005 in the Paris, France metropolitan area and nested within 50 census blocks showed, after adjusting for individual-level variables, that people living in deprived neighbourhoods were significantly more depressed that those living in more advantaged neighbourhoods. We also observed a statistically significant cross-level interaction between activity space and neighbourhood deprivation, as they relate to depression. Living in a deprived neighbourhood had a stronger and statistically significant effect on depression in people whose activity space was limited to their neighbourhood than in those whose daily travels extended beyond it. In addition, a limited activity space appeared to be a protective factor with regard to depression for people living in advantaged neighbourhoods and a risk factor for those living in deprived neighbourhoods. It could therefore be useful to take activity space into consideration more often when studying the social and spatial determinants of depression
|
The role of daily mobility in mental health inequalities: the interactive influence of activity space and neighbourhood of residence on depression.
:
The interactive influence of activity space and neighbourhood of residence on depression.
|
the role of daily mobility in mental health inequalities: the interactive influence of activity space and neighbourhood of residence on depression. : the interactive influence of activity space and neighbourhood of residence on depression.
|
audiencethe neighbourhood deprivation depression adjustment factors. investigates vulnerability neighbourhood influenced i.e. move travel deprived residential exert stronger neighbourhood residence neighbourhood greater. depression. reflect confinement depressed conversely attachment neighbourhood residence depressed. multilevel logistic consisting inhabitants surveyed paris metropolitan nested census blocks adjusting living deprived neighbourhoods depressed living advantaged neighbourhoods. statistically neighbourhood deprivation relate depression. living deprived neighbourhood stronger statistically depression neighbourhood travels appeared protective regard depression living advantaged neighbourhoods living deprived neighbourhoods. consideration studying determinants depression
|
exact_dup
|
[
"47105427",
"47743593"
] |
52837118
|
10.1016/j.freeradbiomed.2015.12.019
|
International audienceMore than 50% of patients with advanced stages of colon cancer suffer from progressive loss of skeletal muscle, called cachexia, resulting in reduced quality of life and shortened survival. It is becoming evident that reactive oxygen species (ROS) regulate pathways controlling skeletal muscle atrophy. Herein we tested the hypothesis that antioxidant supplementation could prevent skeletal muscle atrophy in a model of cachectic Colon 26 (C26) tumor-bearing mice. Seven-week-old BALB/c mice were subcutaneously inoculated with colon 26 (C26) cancer cells or PBS. Then C26-mice were daily gavaged during 22 days either with PBS (vehicle) or an antioxidant cocktail whose composition is close to that of commercial dietary antioxidant supplements (rich in catechins, quercetin and vitamin C). We found that antioxidants enhanced weight loss and caused premature death of mice. Antioxidants supplementation failed to prevent (i) the increase in plasma TNF-α levels and systemic oxidative damage, (ii) skeletal muscle atrophy and (iii) activation of the ubiquitin-proteasome system (MuRF-1, MAFbx and polyubiquitinated proteins). Accordingly, immunohistological staining for Ki-67 and the expression of cell cycle inhibitors demonstrated that tumor of supplemented mice developed faster with a concomitant decrease in oxidative damage. Previous studies have shown that the use of catechins and quercetin separately can improve the musculoskeletal function in cachectic animals. However, our results indicate that the combination of these antioxidants reduced survival and enhanced cachexia in C26-mice
|
Antioxidant supplementation accelerates cachexia development by promoting tumor growth in C26 tumor-bearing mice
|
antioxidant supplementation accelerates cachexia development by promoting tumor growth in c26 tumor-bearing mice
|
audiencemore advanced colon suffer progressive skeletal cachexia shortened survival. becoming evident reactive regulate pathways controlling skeletal atrophy. herein antioxidant supplementation prevent skeletal atrophy cachectic colon bearing mice. seven week balb subcutaneously inoculated colon pbs. gavaged vehicle antioxidant cocktail commercial dietary antioxidant supplements catechins quercetin vitamin antioxidants premature mice. antioxidants supplementation failed prevent systemic oxidative skeletal atrophy ubiquitin proteasome murf mafbx polyubiquitinated accordingly immunohistological staining inhibitors supplemented faster concomitant oxidative damage. catechins quercetin separately musculoskeletal cachectic animals. antioxidants cachexia
|
exact_dup
|
[
"48156335"
] |
52881854
|
10.1051/0004-6361:20040030
|
International audienceNear-infrared observations of line emission from excited H 2 and in the continuum are reported in the direction of the Orion molecular cloud OMC1 , using the European Southern Observatory Very Large Telescope UT4 , equipped with the NAOS adaptive optics system on the CONICA infrared array camera. Spatial resolution has been achieved at close to the diffraction limit of the telescope (0. 08 −0. 12) and images show a wealth of morphological detail. Structure is not fractal but shows two preferred scale sizes of 2. (1100 AU) and 1. 2 (540 AU) , where the larger scale may be associated with star formation. Key words. ISM : individual objects : OMC1 – ISM : circumstellar matter – ISM : kinematics and dynamics – ISM : molecules – infrared : IS
|
VLT/NACO infrared adaptive optics images of small scale structures in OMC1
|
vlt/naco infrared adaptive optics images of small scale structures in omc1
|
audiencenear infrared excited continuum orion southern observatory telescope equipped naos adaptive optics conica infrared array camera. diffraction telescope wealth morphological detail. fractal preferred sizes formation. words. circumstellar kinematics infrared
|
exact_dup
|
[
"47089804",
"51942255",
"52301053",
"52660337",
"52716256"
] |
52954438
|
10.1103/PhysRevE.49.2023
|
Cellular automata (CA) dynamics are ordered in terms of two global parameters, computable a priori from the description of rules. While one of them (activity) has been used before, the second one is new; it estimates the average sensitivity of rules to small configurational changes. For two-well-known families of rules, the Wolfram complexity classes cluster satisfactorily. The observed simultaneous occurrence of sharp and smooth transitions from ordered to disordered dynamics in CA can be explained with the two-parameter diagram
|
Parametric ordering of complex systems
|
parametric ordering of complex systems
|
automata ordered computable priori rules. configurational changes. families wolfram satisfactorily. simultaneous occurrence sharp ordered disordered
|
exact_dup
|
[
"2257093",
"33972027"
] |
52955254
|
10.1016/j.envsoft.2016.08.002
|
Municipal water systems provide crucial services for human well-being, and will undergo a major transformation this century following global technological, socioeconomic and environmental changes. Future demand scenarios integrating these drivers over multi-decadal planning horizons are needed to develop effective adaptation strategies. This paper presents a new long-term scenario modeling framework that projects future daily municipal water demand at a 1/8° global spatial resolution. The methodology incorporates improved representations of important demand drivers such as urbanization and climate change. The framework is applied across multiple future socioeconomic and climate scenarios to explore municipal water demand uncertainties over the 21st century. The scenario analysis reveals that achieving a low-carbon development pathway can potentially reduce global municipal water demands in 2060 by 2–4%, although the timing and scale of impacts vary significantly with geographic location
|
Climate and human development impacts on municipal water demand: A spatially-explicit global modeling framework
|
climate and human development impacts on municipal water demand: a spatially-explicit global modeling framework
|
municipal crucial undergo century technological socioeconomic changes. scenarios integrating drivers decadal planning horizons adaptation strategies. presents projects municipal resolution. methodology incorporates representations drivers urbanization change. socioeconomic scenarios explore municipal century. reveals achieving potentially municipal demands timing impacts vary geographic
|
exact_dup
|
[
"79433294"
] |
52998765
|
10.1016/j.surfcoat.2014.07.080
|
International audienceThis study investigates the mechanical behavior of a carbonitrided steel, plastically graded material, during a spherical indentation test. We demonstrate that the behavior of a carbonitrided steel can be simulated accurately with a seven layer sample, including the surface, five intermediate layers and the substrate. Moreover, for engineering design simulations which require a lot of calculation time, using three layers provides a good compromise for accuracy. A complete experimental procedure involving seven successive identifications with inverse analysis gave the same results as a simpler procedure proposed in a previous paper. It is shown that the assumption of a linear variation of the properties in the intermediate layers between surface and substrate is valid. This is the first time that an instrumented roller indentation test has demonstrated the reliability of the proposed method for the mechanical characterization of carbonitrided steels with spherical indentation
|
Experimental and numerical investigation on carbonitrided steel characterization with spherical indentation
|
experimental and numerical investigation on carbonitrided steel characterization with spherical indentation
|
audiencethis investigates carbonitrided steel plastically graded spherical indentation test. carbonitrided steel accurately seven substrate. compromise accuracy. involving seven successive identifications gave simpler paper. valid. instrumented roller indentation reliability carbonitrided steels spherical indentation
|
exact_dup
|
[
"48184803"
] |
53015556
|
10.1007/11942634_43
|
International audienceWhile chip vendor still stick to Moore's law, and the performance per dollar keeps going up, the performance per watt has been stagnant for the last few years. Moreover energy prices continue to rise world-wide. This poses a major challenge to organisations running grids, indeed such architectures require cooling systems. Indeed the one-year cost of a cooling system and of the power consumption may outfit the grid initial investement. We observe , however, that a grid does not constantly run at peak performance. In this paper, we propose a workload concentration strategy to reduce grid power consumption. Using the Xen virtual machine migration technology, our power management policy can dispatch transparently and dynamically any applications of the grid. Our policy concentrates the workload to shutdown nodes that are unused with a neglectable impact on performance. We show through evaluations that this policy decreases the overall power consumption of the grid significantl
|
Power Management in Grid Computing with Xen
|
power management in grid computing with xen
|
audiencewhile chip vendor stick moore dollar keeps going watt stagnant years. prices continue wide. poses challenge organisations running grids architectures cooling systems. cooling outfit investement. constantly performance. propose workload consumption. virtual machine migration dispatch transparently dynamically grid. concentrates workload shutdown unused neglectable performance. evaluations significantl
|
exact_dup
|
[
"50617551"
] |
53017190
|
10.1016/j.compind.2009.10.013
|
International audienceThe Unified Enterprise Modelling Language (UEML) aims at supporting integrated use of enterprise and IS models expressed using different languages. To achieve this aim, UEML offers a hub through which modelling languages can be connected, thereby paving the way for also connecting the models expressed in those languages. This paper motivates and presents the most central parts of the UEML approach: a structured path to describing enterprise and IS modelling constructs; a common ontology to interrelate construct descriptions at the semantic level; a correspondence analysis approach to estimate semantic construct similarity; a quality framework to aid selection of languages; a meta-meta model to integrate the different parts of the approach; and a set of tools to aid its use and evolution. The paper also discusses the benefits of UEML and points to paths for further work
|
The Unified Enterprise Modelling Language – Overview and further work
|
the unified enterprise modelling language – overview and further work
|
audiencethe unified enterprise ueml aims supporting enterprise languages. ueml offers languages thereby paving connecting languages. motivates presents ueml structured describing enterprise constructs ontology interrelate descriptions semantic correspondence semantic similarity languages meta meta integrate evolution. discusses benefits ueml paths
|
exact_dup
|
[
"52856575"
] |
53163708
|
10.1002/ejoc.200700302
|
Klebsiella oxytoca BAS-10 is a Gram-negative micro-organism
capable of growing on high concentrations of heavy metals.
This bacterium produces large amounts of an iron-binding
exopolysaccharide that, in the presence of metallic cations,
precipitates as a dense gel. The primary and secondary
structure of the repeating unit of such polysaccharide has
been characterised by chemical and spectroscopic methods,
resulting in the following heptasaccharide: 2)-α-Rha-(1_3)-
β-Gal-(1_2)-α-Rha-(1_4)-β-GlcA-[β-GlcA-(1_4)]-(1_3)-α-
Rha-(1_3)-α-Rha-(1_. The absolute configurations for the
Rha units are L, while those for the GlcA and Gal residues
are D
|
Structure of the iron-binding exopolysaccharide produced anaerobically by the Gram-negative bacterium Klebsiella oxytoca BAS-10.
|
structure of the iron-binding exopolysaccharide produced anaerobically by the gram-negative bacterium klebsiella oxytoca bas-10.
|
klebsiella oxytoca gram micro organism capable growing metals. bacterium produces amounts iron exopolysaccharide metallic cations precipitates dense gel. repeating polysaccharide characterised spectroscopic heptasaccharide glca glca configurations glca
|
exact_dup
|
[
"41123159"
] |
54023317
|
10.1016/j.talanta.2013.03.064
|
International audienceAutism Spectrum Disorders (ASD) are a group of developmental disorders caused by environmental and genetic factors. Diagnosis is based on behavioral and developmental signs detected before 3 years of age with no reliable biological marker. The purpose of this study was to evaluate the potential use of a 2D NMR-based approach to express the global biochemical signature of autistic individuals compared to normal controls. This technique has greater spectral resolution than to 1D (1)H NMR spectroscopy, which is limited by overlapping signals. The urinary metabolic profiles of 30 autistic and 28 matched healthy children were obtained using a (1)H-(13)C NMR-based approach. The data acquired were processed by multivariate orthogonal partial least-squares discriminant analysis (OPLS-DA). Some discriminating metabolites were identified: β-alanine, glycine, taurine and succinate concentrations were significatively higher, and creatine and 3-methylhistidine concentrations were lower in autistic children than in controls. We also noted differences in several other metabolites that were unidentified but characterized by a cross peak correlation in (1)H-(13)C HSQC. Statistical models of (1)H and (1)H-(13)C analyses were compared and only 2D spectra allowed the characterization of statistically relevant changes [R(2)Y(cum)=0.78 and Q(2)(cum)=0.60] in the low abundance metabolites. This method has the potential to contribute to the diagnosis of neurodevelopment disorders but needs to be validated on larger cohorts and on other developmental disorders to define its specificity
|
1H-13C NMR-based urine metabolic profiling in autism spectrum disorders.
|
1h-13c nmr-based urine metabolic profiling in autism spectrum disorders.
|
audienceautism disorders developmental disorders factors. behavioral developmental signs reliable marker. express biochemical signature autistic controls. spectroscopy overlapping signals. urinary metabolic autistic matched healthy approach. acquired processed multivariate orthogonal squares discriminant opls discriminating metabolites alanine glycine taurine succinate significatively creatine methylhistidine autistic controls. metabolites unidentified hsqc. statistically abundance metabolites. neurodevelopment disorders validated cohorts developmental disorders specificity
|
exact_dup
|
[
"54023315"
] |
59036008
|
10.1016/S0013-7944(01)00009-1
|
This paper presents the development of a practical method, by using prepared tabulated data, to
calculate the mode I stress intensity factor (SIF) for an inner surface circumferential crack in a finite
length cylinder. The crack surfaces are subjected to an axisymmetric stress with an arbitrary biquadratic
radial distribution. The method was derived by applying the authors’ weight function for the crack. This
work is based on the thin shell theory and the Petroski-Achenbach method. Our method is valid over a
wide range of mean radius to wall thickness ratio, Rm/W ≥ 1, and for relatively short cracks with a/W ≤
0.5. The difference between the SIF obtained by our method for the geometry and that from finite element
analysis is within 5%. The method we developed describes the effect that cylinder length gives on the SIF.
This effect needs to be considered for cylinders shorter than non-dimensional cylinder length βH≤ 5
|
Stress Intensity Factor for a Circumferential Crack in a Finite-Length Thin to Thick Walled Cylinder under an Arbitrary Biquadratic Stress Distribution on the Crack Surfaces
|
stress intensity factor for a circumferential crack in a finite-length thin to thick walled cylinder under an arbitrary biquadratic stress distribution on the crack surfaces
|
presents practical tabulated circumferential crack cylinder. crack subjected axisymmetric biquadratic distribution. authors’ crack. petroski achenbach method. valid cracks describes cylinder sif. cylinders shorter cylinder
|
exact_dup
|
[
"61366143"
] |
59036066
|
10.1016/j.jchromb.2005.03.031
|
We developed a simple and sensitive stable-isotope dilution method for the quantification of 3-hydroxyglutaric acid (3HGA) and glutaric acid (GA) in body fluids. In our method, tert-butyldimethylsilyl (tBDMS) derivatives of 3HGA and GA were measured with a conventional electron-impact ionization (EI) mode in gas chromatography–mass spectrometry (GC–MS). The control values for 3HGA in nmol/ml were 0.15 ± 0.08 (serum; n = 10) and 0.07 ± 0.03 (CSF; n = 10). In addition, glutarylcarnitine and free carnitine were quantified by electrospray tandem mass spectrometry. Using these methods, we monitored 3HGA, GA, and glutarylcarnitine in the body fluids of three patients with glutaric aciduria type 1 found during newborn screening. None of the patients had experienced neurological strokes, which are possibly caused by the accumulation of 3HGA, at 15–24 months of age under a disease-specific treatment, including carnitine supplementation. Our data showed that 3HGA levels were relatively high in some serum samples with lower glutarylcarnitine and carnitine levels, suggesting that carnitine supplementation may play a role in preventing the accumulation of 3HGA in patients with this disease
|
Stable-isotope dilution gas chromatography–mass spectrometric measurement of 3-hydroxyglutaric acid, glutaric acid and related metabolites in body fluids of patients with glutaric aciduria type 1 found in newborn screening
|
stable-isotope dilution gas chromatography–mass spectrometric measurement of 3-hydroxyglutaric acid, glutaric acid and related metabolites in body fluids of patients with glutaric aciduria type 1 found in newborn screening
|
isotope dilution quantification hydroxyglutaric glutaric fluids. tert butyldimethylsilyl tbdms derivatives ionization chromatography–mass spectrometry gc–ms nmol glutarylcarnitine carnitine quantified electrospray tandem spectrometry. monitored glutarylcarnitine fluids glutaric aciduria newborn screening. none experienced neurological strokes possibly accumulation carnitine supplementation. glutarylcarnitine carnitine carnitine supplementation preventing accumulation
|
exact_dup
|
[
"61371585"
] |
61342927
|
10.1016/j.electacta.2008.04.084
|
A cathodic voltammetric wave was observed in an aqueous suspension of
mono-dispersed, spherical polyaniline-coated polystyrene particles, whereas no anodic
wave was detected. This irreversibility was common to particles with eight different
diameters ranging from 0.2 to 7.5 μm. Such irreversibility cannot be found at
polyaniline-coated electrodes, and thus is a property of the dispersion of polyaniline
latex. The reduction current was controlled by diffusion of dispersed particles. The
reduction, being the conversion from the electrical conducting state to the resistive one,
should begin at a point of contact between the conducting particle and the electrode in
order to be propagated to the whole particle rapidly. In contrast, the oxidation proceeds
slowly with the propagation of conducting zone, during which Brownian motion lets the
particle detach from the electrode. The number of loaded aniline units per particle,
determined by weight analysis, ranged from 6×10_6 (φ 0.2 μm) to 3×10_11 (φ 7.5 μm) and
was proportional to 2.9 powers of the particle diameter. The diffusion-controlled current
of the cathodic wave was proportional to 2.4 powers of the diameter. The difference in
these powers, 0.5, agreed with a theoretical estimation of the diffusion-controlled
current, the diffusion coefficient for which was given by the Stokes-Einstein equation
|
Electrochemically instantaneous reduction of conducting polyaniline-coated latex particles dispersed in acidic solution
|
electrochemically instantaneous reduction of conducting polyaniline-coated latex particles dispersed in acidic solution
|
cathodic voltammetric aqueous suspension mono dispersed spherical polyaniline coated polystyrene anodic detected. irreversibility eight diameters ranging irreversibility polyaniline coated electrodes polyaniline latex. dispersed particles. conversion electrical conducting resistive begin conducting electrode propagated rapidly. oxidation proceeds slowly propagation conducting brownian lets detach electrode. loaded aniline ranged powers diameter. cathodic powers diameter. powers agreed stokes einstein
|
exact_dup
|
[
"59036891"
] |
61344206
|
10.1016/j.jcis.2006.09.045
|
Visible polyaniline-latex particles 13 μm in diameter were used for obtaining quantitatively a relationship between the adsorption force and the electroactivity at a platinum electrode. The suspension in hydrochloride acid was filled in an optical cell equipped with wire electrodes. When electrode potential was switched between the oxidized and the reduced domains alternatively, some adsorbed particles showed color change owing to the electroactivity. The numbers of the electroactive and the inactive particles were counted in the suspension including poly(N-vinylpyrrolidone) (PVP). The ratio of the numbers was proportional to the concentration of PVP, as was in equilibrium. The adsorbed particles were desorbed mechanically by forced flow. The numbers of the desorbed particles did not decrease with an increase in the flow velocity until threshold values. The threshold value for the electroactive particle was 10 times larger than that for the inactive ones, corresponding to 10 times larger adsorption energy of the electroactive particles than the inactive ones. The adsorption stress was evaluated from the removal of the electropolymerized polyaniline film from the electrode. Then the adsorption area of the particle was estimated
|
Adsorption Force of Polyaniline-Coated Polystyrene Latex Particles
|
adsorption force of polyaniline-coated polystyrene latex particles
|
visible polyaniline latex obtaining quantitatively adsorption electroactivity platinum electrode. suspension hydrochloride filled equipped wire electrodes. electrode switched oxidized alternatively adsorbed owing electroactivity. electroactive inactive counted suspension poly vinylpyrrolidone equilibrium. adsorbed desorbed mechanically forced flow. desorbed values. electroactive inactive adsorption electroactive inactive ones. adsorption removal electropolymerized polyaniline film electrode. adsorption
|
exact_dup
|
[
"59036040"
] |
61348268
|
10.1016/j.jelechem.2006.04.004
|
The diffusion equation complicated by a delay of a concentration flux, J, from the formation of a concentration gradient, ∂c/∂x, was formulated in the context of electrochemical measurements. In contrast with the Fick’s first law, J = -D∂c/∂x, the flux at a short time is known to be delayed owing to a finite propagation speed of the gradient, called the memory effect or the second sound for thermal diffusivity. The modified Fick’s law contained the second time-derivative of the concentration multiplied by the relaxation time, τ, additive to the conventional diffusion equation. It was applied to chronoamperometry. The current-time curve was smoother than that for the Cottrell equation. The current at a short time was almost constant owing to the rate-determining step of the propagation velocity, (D/τ)1/2, and then decays obeying the Cottrell equation. This variation was similar to the curve mixed with the Butler-Volmer kinetics. The relaxation time was estimated from the period during which a diffusing particle can recognize the concentration gradient by collision with the nearest diffusing particle. The propagation velocity was of the order of some cm s-1, which is similar to the maximum values of the measurable charge transfer rate constant
|
Diffusion-controlled current with memory
|
diffusion-controlled current with memory
|
complicated delay formulated electrochemical measurements. fick’s delayed owing propagation sound diffusivity. fick’s multiplied relaxation additive equation. chronoamperometry. smoother cottrell equation. owing determining propagation decays obeying cottrell equation. butler volmer kinetics. relaxation diffusing recognize collision nearest diffusing particle. propagation measurable
|
exact_dup
|
[
"59036037"
] |
61519489
|
10.1097/TP.0000000000000167
|
Producción CientíficaOsteoarthritis is the most prevalent
joint disease and a frequent cause
of joint pain, functional loss, and disability
(1). Osteoarthritis often becomes
chronic, and conventional treatments
have demonstrated only modest clinical
benefits, without lesion reversal (2). Cellbased
therapies have shown encouraging
results in both animal studies and a
few human case reports.We have recently
published the results of a pilot clinical
trial designed to assess the feasibility
and safety of osteoarthritis treatment
with bone marrowYderived mesenchymal
stromal cells (MSCs) in 12 patients
with chronic knee pain unresponsive
to conservative treatments and radiologic
evidence of osteoarthritis (3). The
patients were treated with autologous
expanded bone marrow MSCs by intraarticular
injection (40 106 cells), and
clinical outcomes, including evaluations
of pain, disability, and quality of life, were
followed up for 1 year. Articular cartilage
quality was assessed by quantitative
magnetic resonance imaging (MRI) T2
mapping (3).2015-09-3
|
Treatment of Knee Osteoarthritis With Autologous Mesenchymal Stem Cells: Two-Year Follow-up Results
|
treatment of knee osteoarthritis with autologous mesenchymal stem cells: two-year follow-up results
|
producción científicaosteoarthritis prevalent frequent disability osteoarthritis treatments modest benefits lesion reversal cellbased therapies encouraging reports.we pilot feasibility osteoarthritis marrowyderived mesenchymal stromal mscs knee unresponsive conservative treatments radiologic osteoarthritis autologous expanded marrow mscs intraarticular injection evaluations disability year. articular cartilage
|
exact_dup
|
[
"196150542"
] |
74484624
|
10.1080/19407963.2012.662619
|
The legacy of an Olympic Games in a host city or country can take a variety of forms, including non-sporting benefits, such as enhanced urban infrastructure and national and international tourism profile, and sporting benefits, such as improved sporting facilities, strengthened sports organisations and potential increases in grassroots sport participation. This paper concentrates on the last of these, particularly in regard to the Sydney 2000 Olympic Games. The paper examines claims by the Olympic movement concerning increased sports participation as a legacy and examines available evidence to consider whether the hosting of the Games boosted sports participation in Australia. While some estimates suggest that participation did increase following the hosting of the 2000 Olympics, the failure of relevant organisations to maintain an adequate and consistent data collection regime makes this conclusion extremely speculative. From 2001 onwards, with the existence of a more stable data collection system and increasing awareness of the idea of a sport participation legacy, it is possible to make more reliable estimates of the pattern of grassroots sports participation following the hosting of the 2003 Rugby World Cup and the 2006 Melbourne Commonwealth Games. However, even when reliable and consistent participation data are available, the question of causality in the context of the wider sport development and participation system remains to be addressed
|
The sport participation legacy of the Sydney 2000 Olympic Games and other international sporting events hosted in Australia
|
the sport participation legacy of the sydney 2000 olympic games and other international sporting events hosted in australia
|
legacy olympic games city sporting benefits infrastructure tourism sporting benefits sporting facilities strengthened sports organisations grassroots sport participation. concentrates regard sydney olympic games. examines claims olympic movement concerning sports participation legacy examines hosting games boosted sports participation australia. participation hosting olympics organisations maintain adequate extremely speculative. onwards awareness sport participation legacy reliable grassroots sports participation hosting rugby melbourne commonwealth games. reliable participation causality wider sport participation addressed
|
exact_dup
|
[
"74500061"
] |
79492160
|
10.1007/JHEP10(2016)122
|
When matter fields are included in chiral perturbation theory, the nonvanishing mass in the chiral limit introduces a new energy scale so that the loop diagrams including such matter field propagators spoil the usual power counting. However, the power counting breaking terms can be absorbed into counterterms in the chiral Lagrangian. In this paper, we systematically derive these terms to leading one-loop order (next-to-next-to leading order in the chiral expansion) at once by calculating the generating functional using the path integral. They are then absorbed by counterterms in the next-to-leading order Lagrangian. The method can be extended to calculating power counting breaking terms for other matter fields
|
Subtraction of power counting breaking terms in chiral perturbation theory: spinless matter fields
|
subtraction of power counting breaking terms in chiral perturbation theory: spinless matter fields
|
chiral perturbation nonvanishing chiral introduces diagrams propagators spoil usual counting. counting breaking absorbed counterterms chiral lagrangian. systematically derive chiral calculating generating integral. absorbed counterterms lagrangian. calculating counting breaking
|
exact_dup
|
[
"73377644"
] |
80193601
|
10.1007/JHEP03(2016)030
|
We study the collision of a highly energetic light closed string off a stack of Dp-branes at (sub)string-scale impact parameters and in a regime justifying a perturbative treatment. Unlike at larger impact parameters — where elastic scattering and/or tidal excitations dominate — here absorption of the closed string by the brane system, with the associated excitation of open strings living on it, becomes important. As a first step, we study this phenomenon at the disk level, in which the energetic closed string turns into a single heavy open string at rest whose particularly simple properties are described
|
A microscopic description of absorption in high-energy string-brane collisions
|
a microscopic description of absorption in high-energy string-brane collisions
|
collision energetic stack branes justifying perturbative treatment. unlike elastic tidal excitations dominate brane strings living important. phenomenon energetic turns
|
exact_dup
|
[
"42644855"
] |
81964965
|
10.1016/j.cobeha.2014.10.001
|
It is common, particularly in young people, to report psychotic experiences (PEs) such as feeling paranoid and having hallucinations. The questions of the role of genes and environment on PEs in the general population, and how PEs relate to schizophrenia, have not, until recently, been addressed empirically. New approaches demonstrate the heritability and role of the environment on the full range of PEs (including positive, cognitive and negative types) and show that extreme, severe forms are linked genetically to milder, less severe forms. New approaches have tested whether PEs are associated with the genome-wide significant genetic variants known to predict schizophrenia. Although at an early stage, this research will impact how we understand PEs in everyday life
|
Recent quantitative genetic research on psychotic experiences: new approaches to old questions
|
recent quantitative genetic research on psychotic experiences: new approaches to old questions
|
psychotic experiences feeling paranoid hallucinations. relate schizophrenia addressed empirically. heritability extreme genetically milder forms. variants predict schizophrenia. everyday
|
exact_dup
|
[
"141222373"
] |
84138590
|
10.1007/978-3-319-04921-2_8
|
ABSTRACT\ud
\ud
In this paper, we consider the computational power of a new variant of networks of evolutionary processors which seems to be more suitable for a software and hardware implementation. Each processor as well as the data navigating throughout the network are now considered to be polarized. While the polarization of every processor is predefined, the data polarization is dynamically computed by means of a valuation mapping. Consequently, the protocol of communication is naturally defined by means of this polarization. We show that tag systems can be simulated by these networks with a constant number of nodes, while Turing machines can be simulated, in a time-efficient way, by these networks with a number of nodes depending linearly on the tape alphabet of the Turing machine
|
Networks of polarized evolutionary processors are computationally complete
|
networks of polarized evolutionary processors are computationally complete
|
variant evolutionary processors hardware implementation. processor navigating polarized. processor predefined dynamically valuation mapping. naturally polarization. turing machines linearly tape alphabet turing machine
|
exact_dup
|
[
"148682019"
] |
84139203
|
10.1016/j.proeng.2016.11.136
|
We present the direct comparison of the performance of two gravimetric biosensors based on acoustic resonators, a quartz crystal microbalance and a high frequency AlN-based bulk acoustic wave film solidly mounted resonator (SMR). Both sensors are functionalized with streptavidin to detect the response to TBA29 aptamer biotin modified and different concentrations of thrombin. Experimental results reveal that both sensors succeed in detecting the targeted species, although SMRs show significantly greater sensitivity and a lower limit of detectio
|
Direct comparison of the sensitivity of QCMs and AlN-based TFRs biosensors
|
direct comparison of the sensitivity of qcms and aln-based tfrs biosensors
|
gravimetric biosensors acoustic resonators quartz microbalance acoustic film solidly mounted resonator sensors functionalized streptavidin detect aptamer biotin thrombin. reveal sensors succeed detecting targeted smrs detectio
|
exact_dup
|
[
"148687898"
] |
87202452
|
10.1038/s41598-017-05808-w
|
Mitochondria act as a platform for antiviral innate immunity, and the immune system depends on activation of the retinoic acid-inducible gene I (RIG-I)-like receptors (RLR) signaling pathway via an adaptor molecule, mitochondrial antiviral signaling. We report that RLR-mediated antiviral innate immunity requires oxidative phosphorylation (OXPHOS) activity, a prominent physiologic function of mitochondria. Cells lacking mitochondrial DNA or mutant cells with respiratory defects exhibited severely impaired virus-induced induction of interferons and proinflammatory cytokines. Recovery of the OXPHOS activity in these mutants, however, re-established RLR-mediated signal transduction. Using in vivo approaches, we found that mice with OXPHOS defects were highly susceptible to viral infection and exhibited significant lung inflammation. Studies to elucidate the molecular mechanism of OXPHOS-coupled immune activity revealed that optic atrophy 1, a mediator of mitochondrial fusion, contributes to regulate the antiviral immune response. Our findings provide evidence for functional coordination between RLR-mediated antiviral innate immunity and the mitochondrial energy-generating system in mammals
|
RLR-mediated antiviral innate immunity requires oxidative phosphorylation activity
|
rlr-mediated antiviral innate immunity requires oxidative phosphorylation activity
|
mitochondria platform antiviral innate immunity immune retinoic inducible receptors adaptor molecule mitochondrial antiviral signaling. antiviral innate immunity oxidative phosphorylation oxphos prominent physiologic mitochondria. lacking mitochondrial respiratory defects exhibited severely impaired interferons proinflammatory cytokines. recovery oxphos mutants transduction. oxphos defects susceptible viral exhibited inflammation. elucidate oxphos immune optic atrophy mediator mitochondrial fusion contributes regulate antiviral immune response. coordination antiviral innate immunity mitochondrial generating mammals
|
exact_dup
|
[
"160455475"
] |
87204168
|
10.1038/s41598-017-11150-y
|
Many animals use sounds produced by conspecifics for mate identification. Female insects and anuran amphibians, for instance, use acoustic cues to localize, orient toward and approach conspecific males prior to mating. Here we present a novel technique that utilizes multiple, distributed sound-indication devices and a miniature LED backpack to visualize and record the nocturnal phonotactic approach of females of the Australian orange-eyed tree frog (Litoria chloris) both in a laboratory arena and in the animal’s natural habitat. Continuous high-definition digital recording of the LED coordinates provides automatic tracking of the female’s position, and the illumination patterns of the sound-indication devices allow us to discriminate multiple sound sources including loudspeakers broadcasting calls as well as calls emitted by individual male frogs. This innovative methodology is widely applicable for the study of phonotaxis and spatial structures of acoustically communicating nocturnal animals
|
Visualizing Phonotactic Behavior of Female Frogs in Darkness
|
visualizing phonotactic behavior of female frogs in darkness
|
sounds conspecifics mate identification. insects anuran amphibians acoustic cues localize orient toward conspecific males mating. utilizes sound indication devices miniature backpack visualize record nocturnal phonotactic females australian orange eyed frog litoria chloris arena animal’s habitat. digital recording automatic tracking female’s illumination sound indication devices discriminate sound loudspeakers broadcasting calls calls emitted frogs. innovative methodology widely applicable phonotaxis acoustically communicating nocturnal
|
exact_dup
|
[
"160456536"
] |
9027164
|
10.1103/PhysRevA.79.065601
|
We apply a kinetic model to predict the existence of an instability mechanism in elongated Bose-Einstein condensates. Our kinetic description, based on the Wigner formalism, is employed to highlight the existence of unstable Bogoliubov waves that may be excited in the counterpropagation configuration. We identify a dimensionless parameter, the Mach number at T=0, that tunes different regimes of stability. We also estimate the magnitude of the main parameters at which two-stream instability is expected to be observed under typical experimental conditions
|
Two-stream instability in quasi-one-dimensional Bose-Einstein condensates
|
two-stream instability in quasi-one-dimensional bose-einstein condensates
|
predict instability elongated bose einstein condensates. wigner formalism highlight unstable bogoliubov excited counterpropagation configuration. dimensionless mach tunes regimes stability. stream instability
|
exact_dup
|
[
"2092240"
] |
102341
|
10.1063/1.2719017
|
<p>The spin relaxation in undoped InSb films grown on GaAs has been investigated in the temperature range from 77 to 290 K. Two distinct lifetime values have been extracted, 1 and 2.5 ps, dependent on film thickness. Comparison of this data with a multilayer transport analysis of the films suggests that the longer time (~2.5 ps at 290 K) is associated with the central intrinsic region of the film, while the shorter time (~1 ps) is related to the highly dislocated accumulation region at the film-substrate interface. Whereas previous work on InAs films grown on GaAs showed that the native surface defect resulted in an additional charge accumulation layer with high conductivity but very short spin lifetime, in InSb layers the surface states introduce a depletion region. We infer that InSb could be a more attractive candidate for spintronic applications than InAs.</p
|
Spin lifetime in high quality InSb epitaxial layers grown on GaAs
|
spin lifetime in high quality insb epitaxial layers grown on gaas
|
relaxation undoped insb films grown gaas lifetime film thickness. multilayer films intrinsic film shorter dislocated accumulation film interface. inas films grown gaas native defect resulted accumulation conductivity lifetime insb depletion region. infer insb attractive candidate spintronic inas.
|
exact_dup
|
[
"100810"
] |
11311290
|
10.1007/978-3-642-31199-4_3
|
We consider software development as an economic activity, where goods and services can be modeled as a resource constrained task allocation problem. This paper introduces a market based mechanism to overcome task allocation issues in a software development process. It proposes a mechanism with a prescribed set of rules, where valuation is based on the behaviors of stakeholders such as biding for a task. A bid process ensures that a stakeholder, who values the resource most, will have it allocated for a limited number of times. To observe the bidders behaviors, we initiate an approach incorporated with a process simulation model. Our preliminary results support the idea that our model is useful for optimizing the value based task allocations, creating a market value for the project assets, and for achieving proper allocation of project resources specifically on large scale software projects
|
A market based approach for resolving resource constrained task allocation problems in a software development process
|
a market based approach for resolving resource constrained task allocation problems in a software development process
|
goods modeled resource constrained allocation problem. introduces overcome allocation process. proposes prescribed valuation behaviors stakeholders biding task. ensures stakeholder resource allocated times. bidders behaviors initiate incorporated model. preliminary optimizing allocations creating assets achieving proper allocation projects
|
exact_dup
|
[
"147603197"
] |
11830006
|
10.1016/j.entcs.2009.02.049)
|
Cells life follows a cycling behaviour which starts at cell birth and leads to cell division through a number of distinct phases. The transitions through the various cell cycle phases are controlled by a complex network of signalling pathways. Many cell cycle transitions are irreversible: once they are started they must reach completion. In this study we investigate the existence of conditions which lead to cases when irreversibility may be broken. Specifically, we characterise the elements of the cell cycle signalling network that are responsible for the irreversibility and we determine conditions for which the irreversible transitions may become reversible. We illustrate our results through a formal approach in which stochastic simulation analysis and model checking verification are combined. Through probabilistic model checking we provide a quantitative measure for the probability of irreversibility in the ``Start" transition of the cell cycle. This is the preliminary version of a paper that was published in Proceedings of the third International Workshop on Practical Applications of Stochastic Modelling (PASM 2008), ENTCS 232, pp. 39-53, 2009. (DOI:10.1016/j.entcs.2009.02.049
|
An analysis of irreversible transitions in a model of the buddying yeast cell cycle
|
an analysis of irreversible transitions in a model of the buddying yeast cell cycle
|
cycling starts birth division phases. signalling pathways. irreversible started completion. irreversibility broken. characterise signalling irreversibility irreversible reversible. illustrate formal stochastic checking verification combined. probabilistic checking irreversibility cycle. preliminary workshop practical stochastic pasm entcs j.entcs.
|
exact_dup
|
[
"150082871"
] |
11992172
|
10.1063/1.2957081
|
In this paper, the electric field induced deformations of sputter-deposited piezoelectric aluminum nitride thin films sandwiched between electrodes on top of a silicon substrate are studied by numerical calculations and scanning laser interferometric measurements. In our calculations based on the finite element method, the results show the displacement of the top and bottom surfaces of both the thin film and the substrate, for either a free or a perfectly clamped structure. The confirmation that the bottom surface of the film is deformed reveals the limitations of techniques that only access the top surface, as well as the double-beam interferometric configuration, under specific conditions. In addition, the simulations demonstrate the dependence of the displacements on the size of the upper electrode and the contribution of the transverse piezoelectric coefficient d31 to the features of the displacement profiles. A laser scanning vibrometry technique was used to measure deformations on the top surface with subpicometer vertical resolution. By comparing the calculated and the experimental displacement profiles, an advanced approach is discussed to obtain accurate quantitative information of both coefficients d31 and d33
|
Simulation and laser vibrometry characterization of piezoelectric AlN thin films
|
simulation and laser vibrometry characterization of piezoelectric aln thin films
|
deformations sputter deposited piezoelectric aluminum nitride films sandwiched electrodes silicon scanning interferometric measurements. displacement film perfectly clamped structure. confirmation film deformed reveals limitations interferometric conditions. displacements electrode piezoelectric displacement profiles. scanning vibrometry deformations subpicometer resolution. displacement advanced
|
exact_dup
|
[
"148653562"
] |
11994066
|
10.1007/s00348-004-0837-8
|
An experiment was performed aboard a sounding rocket on a long cylindrical liquid bridge, aiming at discerning the real transfer function of this liquid configuration to small acceleration loads, quantified by the liquid free-surface deformation divided by the axially imposed acceleration. The results were, however, in great discrepancy with theoretical predictions, showing asymmetric jumps of high amplitude in the evolution of the radial deformation of the liquid bridge, instead of a symmetric sinusoidal radial deformation (axisymmetry was preserved). It has been found now that a non-linear dynamic model perfectly explains this unexpected behaviour
|
Non-Linear Response of a Liquid Bridge to a Sinusoidal Acceleration under Microgravity
|
non-linear response of a liquid bridge to a sinusoidal acceleration under microgravity
|
aboard sounding rocket cylindrical bridge aiming discerning acceleration loads quantified deformation divided axially imposed acceleration. great discrepancy asymmetric jumps deformation bridge sinusoidal deformation axisymmetry preserved perfectly explains unexpected
|
exact_dup
|
[
"148655368"
] |
11997903
|
10.1002/jqs.1262
|
Geochemical (element analysis, molecular analysis of organic compounds), physical, palynological, mineralogical and sedimentary facies analysis were performed to characterise the sedimentary record in Fuentillejo maar-lake in the Central Spanish Volcanic Field of Campo de Calatrava, in order to reconstruct the palaeoenvironmental and palaeoclimatic processes which controlled vegetation patterns and deposition of different sedimentary facies. The upper 20 m of core FUENT-1 show variations in clastic input, water chemistry, vegetation and organic fraction sources in the lake throughout the Late Pleistocene and Holocene. The temporal framework provided by14C accelerator mass spectrometry dating allows assigning the sequence to the last 50 cal. ka BP. Arid phases identified in the FUENT-1 sequence are correlated to Heinrich events (HE) and to stadials of the Dansgaard/Oeschger (D/O) cycles. Siliciclastic facies with high magnetic susceptibility values, high Juniperus pollen content, a low Paq index (aquatic macrophysics proxy index), a decrease in the relative percentage of the n-C27 and an increase in the n-C31 alkanes are indicative of arid and colder climatic events related to HE 2, HE 1 and the Younger Dryas (YD). Similar short cold and arid phases during the Holocene were identified at 9.2–8.6, 7.5–7 and 5.5–5 cal. ka BP. In dolomite–mud facies, the pollen data show an increase in the herbs component, mainly – Chenopodiaceae, Artemisia andEphedra – steppe taxa; a low Paq index, a decrease in the relative percentage of the n-C27 alkane and an increase in the n-C31 alkane are also observed. This facies was probably the result of lower lake levels and more saline–alkaline conditions, which can be interpreted as linked to arid–warm periods. These warm and arid phases were more frequent during Marine Isotope Stage (MIS) 3 and the interstadials of MIS 2. HE 4, HE 2, HE 1 and the YD in core FUENT-1 were immediately followed by increases of warm steppe pollen assemblages that document rapid warming similar to the D/O cycles but do not imply increasing humidity in the area. Fuentillejo hydrology is controlled by changes in the atmospheric and oceanic systems that operated on the North Atlantic region at millennial scale during the last 50 cal. ka B
|
Identification of arid phases during the last 50 kyr Cal BP from the Fuentillejo maar lacustrine record (Campo de Calatrava Volcanic Field, Spain).
|
identification of arid phases during the last 50 kyr cal bp from the fuentillejo maar lacustrine record (campo de calatrava volcanic field, spain).
|
geochemical palynological mineralogical sedimentary facies characterise sedimentary record fuentillejo maar lake spanish volcanic campo calatrava reconstruct palaeoenvironmental palaeoclimatic vegetation deposition sedimentary facies. fuent clastic vegetation lake pleistocene holocene. accelerator spectrometry dating assigning cal. arid fuent heinrich stadials dansgaard oeschger cycles. siliciclastic facies susceptibility juniperus pollen aquatic macrophysics proxy alkanes indicative arid colder climatic younger dryas cold arid holocene cal. dolomite–mud facies pollen herbs chenopodiaceae artemisia andephedra steppe taxa alkane alkane observed. facies probably lake saline–alkaline interpreted arid–warm periods. warm arid frequent marine isotope interstadials fuent immediately warm steppe pollen assemblages document warming cycles imply humidity area. fuentillejo hydrology oceanic operated atlantic millennial cal.
|
exact_dup
|
[
"148659878"
] |
12018919
|
10.1007/s11187-009-9199-1
|
This paper tests whether the academic achievement is a significant determinant of the employment status in the Italian labor market: are the new entrepreneurs selected from the top or bottom end of the graduates
ability distribution? Is the cream of the graduate crop pulled into self-employment by the higher expected earnings or are the individuals with lower degree score pushed into entrepreneurship by poor alternatives?
Our data show a strong negative relation between academic achievement and self-employment status, i.e. we assess the skimming of the best graduates into wage and salary work.
|
Who skims the cream of the Italian graduate crop? Wage-employment versus self-employment
|
who skims the cream of the italian graduate crop? wage-employment versus self-employment
|
academic achievement determinant employment italian labor entrepreneurs graduates cream graduate crop pulled employment earnings pushed entrepreneurship alternatives academic achievement employment i.e. skimming graduates wage salary work.
|
exact_dup
|
[
"12025797"
] |
12026777
|
10.1016/j.worlddev.2013.07.004
|
This paper explores rural households’ adoption of a new cooking technology in the Northern Peruvian Andes. It exploits a development intervention which distributed and installed, at no cost, firewood efficient stoves in the rural communities of Chalaco District. Using first hand data, collected from the beneficiary villages, this research investigates how village technology adoption patterns and village social capital mutually interact and influence the individual household’s adoption decision. The results in this paper indicate that the effect of village adoption patterns on the household’s adoption decision is significantly higher in villages with stronger social capital and that the marginal impact of social capital may be negative if village success in adoption is relatively low. It is also shown that only the proportion of adopters that did not experience problems with their own stoves has a positive impact on individual household adoption through its interaction with social capital, while the reverse is true for the village proportion of adopters experiencing problems with the new cooking technology. In this study measures of social capital were collected prior to the intervention; therefore, reverse causality should not be a critical issue in identifying the effects of this social variable. Village unobservable factors are not likely to drive the observed patterns in the data; this paper also shows that village success in adoption has a negative effect on the decision to uninstall the stove among beneficiary non users and that this effect is also increasing in village social capital. The results point to the importance of village social structures in the success of development interventions.
|
The role of social capital in the adoption of firewood efficient stoves in the Northern Peruvian Andes
|
the role of social capital in the adoption of firewood efficient stoves in the northern peruvian andes
|
explores rural households’ adoption cooking northern peruvian andes. exploits installed firewood stoves rural communities chalaco district. beneficiary villages investigates village adoption village capital mutually interact household’s adoption decision. village adoption household’s adoption villages stronger capital marginal capital village success adoption low. proportion adopters stoves household adoption capital reverse village proportion adopters experiencing cooking technology. capital reverse causality identifying variable. village unobservable drive village success adoption uninstall stove beneficiary village capital. village success interventions.
|
exact_dup
|
[
"12020337"
] |
130141371
|
10.1016/j.ijproman.2014.02.004
|
In contrast to traditional projects, which are assumed to be fully specified and then executed with little learning anticipated, complex projects cannot be fully specified at the outset and require continuous learning over their life cycles. Nevertheless, the key role of knowledge formation and learning in managing complex projects is under-developed for expanding project capability boundaries to include knowledge uncertainty and indeterminacy. Drawing inspiration from Karl Weick's enactivist ideas and an empirical study of two organizations that developed project capability for complex projects, the paper develops an integrated view of projects and project management that is grounded in problem solving learning and organizing. More specifically, a project is reconceptualised as 'a mode of organizing to accomplish a temporary undertaking' with intrinsic learning. This perspective views complex projects under knowledge uncertainty as learning organizations, with implications for project management theory and practice
|
Knowledge formation and learning in the management of projects: a problem solving perspective
|
knowledge formation and learning in the management of projects: a problem solving perspective
|
traditional projects specified executed anticipated projects specified outset cycles. nevertheless managing projects expanding capability boundaries indeterminacy. drawing inspiration karl weick enactivist ideas organizations capability projects develops projects grounded solving organizing. reconceptualised organizing accomplish temporary undertaking intrinsic learning. perspective views projects organizations
|
exact_dup
|
[
"147608623"
] |
131229110
|
10.1007/s11042-016-3807-2
|
The Internet of things (IoT) has received a great deal of attention in recent years, and is still being approached with a wide range of views. At the same time, video data now accounts for over half of the internet traffic. With the current availability of beyond high definition, it is worth understanding the performance effects, especially for real-time applications. High Efficiency Video Coding (HEVC) aims to provide reduction in bandwidth utilisation while maintaining perceived video quality in comparison with its predecessor codecs. Its adoption aims to provide for areas such as television broadcast, multimedia streaming/storage, and mobile communications with significant improvements. Although there have been attempts at HEVC streaming, the literature/implementations offered do not take into consideration changes in the HEVC specifications. Beyond this point, it seems little research exists on real-time HEVC coded content live streaming. Our contribution fills this current gap in enabling compliant and real-time networked HEVC visual applications. This is done implementing a technique for real-time HEVC encapsulation in MPEG-2 Transmission Stream (MPEG-2 TS) and HTTP Live Streaming (HLS), thereby removing the need for multi-platform clients to receive and decode HEVC streams. It is taken further by evaluating the transmission of 4k UHDTV HEVC-coded content in a typical wireless environment using both computers and mobile devices, while considering well-known factors such as obstruction, interference and other unseen factors that affect the network performance and video quality. Our results suggest that 4kUHD can be streamed at 13.5 Mb/s, and can be delivered to multiple devices without loss in perceived quality
|
Implementation of 4kUHD HEVC-content transmission
|
implementation of 4kuhd hevc-content transmission
|
internet things great deal approached views. video accounts internet traffic. availability worth applications. video coding hevc aims bandwidth utilisation maintaining perceived video predecessor codecs. adoption aims television broadcast multimedia streaming storage mobile communications improvements. attempts hevc streaming implementations offered consideration hevc specifications. hevc coded live streaming. fills enabling compliant networked hevc applications. implementing hevc encapsulation mpeg stream mpeg live streaming thereby removing platform clients receive decode hevc streams. evaluating uhdtv hevc coded wireless computers mobile devices obstruction interference unseen video quality. kuhd streamed delivered devices perceived
|
exact_dup
|
[
"74375286"
] |
144012986
|
10.1002/xrs.510
|
A review on gas proportional scintillation counters (GPSCs) is presented. Recent achievements towards the portability of simple, inexpensive and compact GPSCs are discussed. Compensation of solid angle effects with the curved grid technique can be used to produce non-focused GPSCs with medium-sized radiation windows, at least up to 80% of the photosensor active diameter, without degradation of detector performance. Low power-consuming and compact vacuum UV photosensors that can operate in direct contact with the scintillation gas, as an alternative to photomultiplier tubes, are now available. Small gettering devices with a low-power built-in heating elements have been shown to be sufficient for the required gas purification in GPSCs assembled with simple and inexpensive techniques, such as the use of epoxies for ceramic-to-metal joints. Copyright © 2001 John Wiley & Sons, Ltd.http://dx.doi.org/10.1002/xrs.51
|
Development of portable gas proportional scintillation counters for x-ray spectrometry
|
development of portable gas proportional scintillation counters for x-ray spectrometry
|
scintillation counters gpscs presented. achievements portability inexpensive gpscs discussed. compensation curved focused gpscs sized windows photosensor degradation performance. consuming photosensors operate scintillation photomultiplier tubes available. gettering devices built heating purification gpscs assembled inexpensive epoxies ceramic joints. xrs.
|
exact_dup
|
[
"19125512"
] |
144013045
|
10.1002/pi.2219
|
The interactions, in aqueous media, between a pyrene-labelled polyelectrolyte poly(acrylic acid) (PAAMePy) with two different degrees of labelling and beta- and gamma-cyclodextrins (beta- and gamma-CD) were studied using absorption and fluorescence (steady-state and time-resolved) techniques. In addition to qualitative and quantitative parameters obtained from absorption and steady-state fluorescence spectra, time-resolved fluorescence data are presented, allowing additional important observations regarding the nature of the interactions. From the overall data it was possible to conclude that in the case of interaction with gamma-CD the efficient encapsulation of two pyrene units into the cavity of the cyclodextrin molecule leads to a decrease in the number of available free monomers and an increase in the number of preformed ground-state dimers (GSDs) of pyrene. It was also shown that contrary to the situation in water, where only intramolecular interactions are present, the addition of gamma-CD leads to new interpolymeric interactions. The absence of significant changes is noted when the interactions of PAAMePy polymers take place with beta-CD. The excimer-to-monomer fluorescence intensity ratio (IE/IM) was found to increase with the added amount of gamma-CD but not with beta-CD. This increase is justified on the basis of the increase of the GSD contribution. The photophysical behaviour was found to be dependent on the pH of the media, but with the absence of relevant interactions between CD and PAAMePy polymer at alkaline values. Copyright © 2007 Society of Chemical Industryhttp://dx.doi.org/10.1002/pi.221
|
Fluorescence studies on the interaction between pyrene-labelled poly(acrylic acid) and cyclodextrins
|
fluorescence studies on the interaction between pyrene-labelled poly(acrylic acid) and cyclodextrins
|
aqueous pyrene labelled polyelectrolyte poly acrylic paamepy labelling beta gamma cyclodextrins beta gamma fluorescence steady resolved techniques. qualitative steady fluorescence resolved fluorescence allowing interactions. gamma encapsulation pyrene cavity cyclodextrin molecule monomers preformed dimers gsds pyrene. contrary intramolecular gamma interpolymeric interactions. paamepy polymers beta excimer monomer fluorescence gamma beta justified contribution. photophysical paamepy polymer alkaline values. copyright industryhttp
|
exact_dup
|
[
"19125554"
] |
144013055
|
10.1002/elan.1140080304
|
The effect of power ultrasound on the voltammetric behavior of ascorbic acid and dehydroascorbic acid at a glassy carbon electrode is described. The voltammetric characteristics of both compounds were found to be modified by ultrasonically formed radicals. In the case of dehydroascorbic acid the single sweep voltammogram shows an anodic signal in the presence of ultrasound which probably results from the formation of an oxidizable radical known to be an intermediate of ascorbic acid oxidation. In the case of ascorbic acid pulsed sonovoltammetry is applied and characterized regarding the time dependence of the current decay and the reliability of its analytical performance. The utility of pulsed sonovoltammetry is demonstrated analyzing a pain killer tablet regarding the ascorbic acid content.http://dx.doi.org/10.1002/elan.114008030
|
Sonovoltammetric behavior of ascorbic acid and dehydroascorbic acid at glassy carbon electrodes: Analysis using pulsed sonovoltammetry
|
sonovoltammetric behavior of ascorbic acid and dehydroascorbic acid at glassy carbon electrodes: analysis using pulsed sonovoltammetry
|
ultrasound voltammetric ascorbic dehydroascorbic glassy electrode described. voltammetric ultrasonically radicals. dehydroascorbic sweep voltammogram anodic ultrasound probably oxidizable radical ascorbic oxidation. ascorbic pulsed sonovoltammetry reliability performance. utility pulsed sonovoltammetry analyzing killer tablet ascorbic content. elan.
|
exact_dup
|
[
"19125564"
] |
144013083
|
10.1002/jps.20923
|
Theophylline is known to undergo vapor phase induced hydrate-anhydrate pseudopolymorphic transformations, which can affect its bioavailability. In this work, the kinetics of the pseudopolymorphic transitions of theophylline crystals in different storage conditions is studied using a vibrational spectroscopic technique. While the hydration is a single-step process with a half-life time of ca. 5 h, the dehydration occurs through a two-step mechanism. In addition, the phase stability of hydrate-anhydrate systems in different relative humidity (RH) conditions was probed. The critical RH for anhydrous teophylline was found to be at ca. 79%, while the critical RH for dehydration is ca. 30%. © 2007 Wiley-Liss, Inc. and the American Pharmacists Association J Pharm Sci 96: 1366-1379, 2007http://dx.doi.org/10.1002/jps.2092
|
Probing pseudopolymorphic transitions in pharmaceutical solids using Raman spectroscopy: Hydration and dehydration of theophylline
|
probing pseudopolymorphic transitions in pharmaceutical solids using raman spectroscopy: hydration and dehydration of theophylline
|
theophylline undergo vapor hydrate anhydrate pseudopolymorphic transformations bioavailability. kinetics pseudopolymorphic theophylline crystals storage vibrational spectroscopic technique. hydration dehydration mechanism. hydrate anhydrate humidity probed. anhydrous teophylline dehydration wiley liss inc. pharmacists pharm jps.
|
exact_dup
|
[
"19125584"
] |
147596286
|
10.1049/cp:20050118
|
Many computer vision applications apply background suppression techniques for the detection and segmentation of moving objects in a scene. While these algorithms tend to work well in controlled conditions they often fail when applied to unconstrained real-world environments. This paper describes a system that detects and removes erroneously segmented foreground regions that are close to a ground plane. These regions include shadows, changing background objects and other low-lying objects such as leaves and rubbish. The system uses a set-up of two or more cameras and requires no 3D reconstruction or depth analysis of the regions. Therefore, a strong camera calibration of the set-up is not necessary. A geometric constraint called a homography is exploited to determine if foreground points are on or above the ground plane. The system takes advantage of the fact that regions in images off the homography plane will not correspond after a homography transformation. Experimental results using real world scenes from a pedestrian tracking application illustrate the effectiveness of the proposed approach
|
Detecting shadows and low-lying objects in indoor and outdoor scenes using homographies
|
detecting shadows and low-lying objects in indoor and outdoor scenes using homographies
|
vision suppression segmentation moving scene. tend fail unconstrained environments. describes detects removes erroneously segmented foreground plane. shadows changing lying leaves rubbish. cameras reconstruction regions. camera calibration necessary. geometric homography exploited foreground plane. advantage homography homography transformation. scenes pedestrian tracking illustrate effectiveness
|
exact_dup
|
[
"11308169"
] |
147601023
|
10.1007/978-3-540-30222-3_62
|
Cross-Language Spoken Document Retrieval (CLSDR) combines both the complexities of retrieval from collections characterized by speech transcription errors and language translation issues between search requests and documents. Thus achieving effective retrieval in this domain is potentially very challenging. For the CLEF 2003 SDR task we adopted a standard query translation strategy using commercial machine translation tools and explored pseudo-relevance feedback using a small contemporaneous collection and a much larger text collection from a different time period
|
Exeter at CLEF 2003: Cross-language spoken document retrieval experiments
|
exeter at clef 2003: cross-language spoken document retrieval experiments
|
spoken document retrieval clsdr combines complexities retrieval collections speech translation requests documents. achieving retrieval potentially challenging. clef adopted query translation commercial machine translation explored pseudo relevance contemporaneous
|
exact_dup
|
[
"11310276"
] |
148653387
|
10.1088/1748-9326/3/1/015004
|
This work is mainly dedicated to the study of the characteristics of spectral coherence of turbulence fluctuations in wind turbine wakes. A computational fluid dynamics (CFD) code has been implemented using a large-eddy simulation (LES) approach, which is thought to be conceptually more suitable for studying the turbulence evolution in a wind turbine wake. Comparisons with experimental data from the Nørrekær Enge II Windfarm, in Denmark, and with an analytical model proposed by Panofsky and Dutton have been performed, and the results are found to be in reasonable agreement with both
|
Large-eddy simulation of spectral coherence in a wind turbine wake
|
large-eddy simulation of spectral coherence in a wind turbine wake
|
dedicated coherence turbulence turbine wakes. implemented eddy thought conceptually studying turbulence turbine wake. comparisons nørrekær enge windfarm denmark panofsky dutton reasonable
|
exact_dup
|
[
"11991996"
] |
148653739
|
10.1007/978-3-540-89897-9_4
|
Governments are investing on the IT adoption and promoting the socalled e-economies as a way to improve competitive advantages. One of the main government’s actions is to provide internet access to the most part of the population, people and organisations. Internet provides the required support for connecting organizations, people and geographically distributed developments teams. Software developments are tightly related to the availability of tools and platforms needed for products developments. Internet is becoming the most widely used platform. Software forges such as SourceForge provide an integrated tools environment gathering a set of tools that are suited for each development with a low cost. In this paper we propose an innovating approach based on Web2.0, services and a method engineering approach for software developments. This approach represents one of the possible usages of the internet of the future
|
A Service based Development Environment on Web 2.0 Platforms
|
a service based development environment on web 2.0 platforms
|
governments investing adoption promoting socalled economies competitive advantages. government’s internet organisations. internet connecting organizations geographically developments teams. developments tightly availability platforms developments. internet becoming widely platform. forges sourceforge gathering suited cost. propose innovating developments. usages internet
|
exact_dup
|
[
"11992352"
] |
148662701
|
10.1016/S0096-0551(96)00011-2
|
Much work has been done in the áreas of and-parallelism and data parallelism in Logic Programs. Such work has proceeded to a certain extent in an independent fashion. Both types of parallelism offer advantages and disadvantages. Traditional (and-) parallel models offer generality, being able to exploit parallelism in a large class of programs (including that exploited by data parallelism techniques). Data parallelism techniques on the other hand offer increased performance for a restricted class of programs. The thesis of this paper is that these two forms of parallelism are not fundamentally different and that relating them opens the possibility of obtaining the advantages of both within the same system. Some relevant issues are discussed and solutions proposed. The discussion is illustrated through visualizations of actual parallel executions implementing the ideas proposed
|
Relating data—parallelism and (and—) parallelism\ud
in logic programs
|
relating data—parallelism and (and—) parallelism\ud in logic programs
|
áreas parallelism parallelism logic programs. proceeded fashion. parallelism offer advantages disadvantages. traditional offer generality exploit parallelism programs exploited parallelism parallelism offer restricted programs. thesis parallelism fundamentally relating opens obtaining advantages system. proposed. illustrated visualizations executions implementing ideas
|
exact_dup
|
[
"12000585"
] |
148664142
|
10.1063/1.4768914
|
We demonstrate site-controlled growth of epitaxial Ag nanocrystals on patterned GaAs substrates by molecular beam epitaxy with high degree of long-range uniformity. The alignment is based on lithographically defined holes in which position controlled InAs quantum dots are grown. The Ag nanocrystals self-align preferentially on top of the InAs quantum dots. No such ordering is observed in the absence of InAs quantum dots, proving that the ordering is strain-driven. The presented technique facilitates the placement of active plasmonic nanostructures at arbitrarily defined positions enabling their integration into complex devices and plasmonic circuits
|
Site-controlled Ag nanocrystals grown by molecular beam epitaxy-Towards plasmonic integration technology
|
site-controlled ag nanocrystals grown by molecular beam epitaxy-towards plasmonic integration technology
|
epitaxial nanocrystals patterned gaas substrates epitaxy uniformity. alignment lithographically holes inas dots grown. nanocrystals align preferentially inas dots. ordering inas dots proving ordering driven. facilitates placement plasmonic nanostructures arbitrarily enabling devices plasmonic circuits
|
exact_dup
|
[
"16412627"
] |
148664372
|
10.1016/j.envpol.2012.01.048
|
A module to estimate risks of ozone damage to vegetation has been implemented in the Integrated Assessment Modelling system for the Iberian Peninsula. It was applied to compute three different indexes for wheat and Holm oak; daylight AOT40 (cumulative ozone concentration over 40 ppb), cumulative ozone exposure index according to the Directive 2008/50/EC (AOT40-D) and PODY (Phytotoxic Ozone Dose over a given threshold of Y nmol m−2 s−1). The use of these indexes led to remarkable differences in spatial patterns of relative ozone risks on vegetation. Ozone critical levels were exceeded in most of the modelling domain and soil moisture content was found to have a significant impact on the results. According to the outputs of the model, daylight AOT40 constitutes a more conservative index than the AOT40-D. Additionally, flux-based estimations indicate high risk areas in Portugal for both wheat and Holm oak that are not identified by AOT-based methods
|
Implementation of a module for risk of ozone impacts assessment to vegetation in the integrated assessment modelling system for the Iberian peninsula. Evaluation for wheat and holm oak
|
implementation of a module for risk of ozone impacts assessment to vegetation in the integrated assessment modelling system for the iberian peninsula. evaluation for wheat and holm oak
|
module risks ozone vegetation implemented iberian peninsula. indexes wheat holm daylight cumulative ozone cumulative ozone directive pody phytotoxic ozone nmol indexes remarkable ozone risks vegetation. ozone exceeded moisture results. outputs daylight constitutes conservative additionally estimations portugal wheat holm
|
exact_dup
|
[
"19588488"
] |
148665129
|
10.1007/978-3-642-31623-4_5
|
We consider here uniform distributed pushdown automata systems (UDPAS), namely distributed pushdown automata systems having all components identical pushdown automata. We consider here just a single protocol for activating/deactivating components, namely a component stays active as long as it can perform moves, as well as two ways of accepting the input word: by empty stacks (all components have empty stacks) or by final states (all components are in final states), when the input word is completely read. We mainly investigate the computational power of UDPAS accepting by empty stacks and a few decidability and closure properties of the families of languages they define. Some directions for further work and open problems are also discussed
|
Uniform Distributed Pushdown Automata Systems.
|
uniform distributed pushdown automata systems.
|
pushdown automata udpas pushdown automata pushdown automata. activating deactivating stays moves ways accepting word empty stacks empty stacks word read. udpas accepting empty stacks decidability closure families languages define. directions
|
exact_dup
|
[
"19767128"
] |
148668550
|
10.1016/j.jneumeth.2013.10.019
|
Background\ud
Magnetoencephalography (MEG) provides a direct measure of brain activity with high combined spatiotemporal resolution. Preprocessing is necessary to reduce contributions from environmental interference and biological noise.\ud
\ud
New method\ud
The effect on the signal-to-noise ratio of different preprocessing techniques is evaluated. The signal-to-noise ratio (SNR) was defined as the ratio between the mean signal amplitude (evoked field) and the standard error of the mean over trials.\ud
\ud
Results\ud
Recordings from 26 subjects obtained during and event-related visual paradigm with an Elekta MEG scanner were employed. Two methods were considered as first-step noise reduction: Signal Space Separation and temporal Signal Space Separation, which decompose the signal into components with origin inside and outside the head. Both algorithm increased the SNR by approximately 100%. Epoch-based methods, aimed at identifying and rejecting epochs containing eye blinks, muscular artifacts and sensor jumps provided an SNR improvement of 5–10%. Decomposition methods evaluated were independent component analysis (ICA) and second-order blind identification (SOBI). The increase in SNR was of about 36% with ICA and 33% with SOBI.\ud
\ud
Comparison with existing methods\ud
No previous systematic evaluation of the effect of the typical preprocessing steps in the SNR of the MEG signal has been performed.\ud
\ud
Conclusions\ud
The application of either SSS or tSSS is mandatory in Elekta systems. No significant differences were found between the two. While epoch-based methods have been routinely applied the less often considered decomposition methods were clearly superior and therefore their use seems advisable
|
Signal-to-noise ratio of the MEG signal after preprocessing
|
signal-to-noise ratio of the meg signal after preprocessing
|
magnetoencephalography spatiotemporal resolution. preprocessing interference noise. preprocessing evaluated. evoked trials. recordings paradigm elekta scanner employed. decompose head. epoch aimed identifying rejecting epochs blinks muscular artifacts sensor jumps decomposition blind sobi sobi. preprocessing performed. tsss mandatory elekta systems. two. epoch routinely decomposition superior advisable
|
exact_dup
|
[
"33171304"
] |
148668786
|
10.1007/978-3-642-41338-4_21
|
Two complementary benchmarks have been proposed so far for the evaluation and continuous improvement of RDF stream processors: SRBench and LSBench. They put a special focus on different features of the evaluated systems, including coverage of the streaming extensions of SPARQL supported by each processor, query processing throughput, and an early analysis of query evaluation correctness, based on comparing the results obtained by different processors for a set of queries. However, none of them has analysed the operational semantics of these processors in order to assess the correctness of query evaluation results. In this paper, we propose a characterization of the operational semantics of RDF stream processors, adapting well-known models used in the stream processing engine community: CQL and SECRET. Through this formalization, we address correctness in RDF stream processor benchmarks, allowing to determine the multiple answers that systems should provide. Finally, we present CSRBench, an extension of SRBench to address query result correctness verification using an automatic method
|
On correctness in RDF stream processor benchmarking
|
on correctness in rdf stream processor benchmarking
|
complementary benchmarks stream processors srbench lsbench. coverage streaming extensions sparql processor query throughput query correctness processors queries. none analysed operational semantics processors correctness query results. propose operational semantics stream processors adapting stream engine secret. formalization correctness stream processor benchmarks allowing answers provide. csrbench srbench query correctness verification automatic
|
exact_dup
|
[
"33171513"
] |
148668865
|
10.1016/j.adhoc.2012.04.012
|
Of the many state-of-the-art methods for cooperative localization in wireless sensor networks (WSN), only very few adapt well to mobile networks. The main problems of the well-known algorithms, based on nonparametric belief propagation (NBP), are the high communication cost and inefficient sampling techniques. Moreover, they either do not use smoothing or just apply it o ine. Therefore, in this article, we propose more flexible and effcient variants of NBP for cooperative localization in mobile networks. In particular, we provide: i) an optional 1-lag smoothing done almost in real-time, ii) a novel low-cost communication protocol based on package approximation and censoring, iii) higher robustness of the standard mixture importance sampling (MIS) technique, and iv) a higher amount of information in the importance densities by using the population Monte Carlo (PMC) approach, or an auxiliary variable. Through extensive simulations, we confirmed that all the proposed techniques outperform the standard NBP method
|
Cooperative localization in mobile networks using nonparametric variants of belief propagation
|
cooperative localization in mobile networks using nonparametric variants of belief propagation
|
cooperative localization wireless sensor adapt mobile networks. nonparametric belief propagation inefficient techniques. smoothing ine. propose flexible effcient variants cooperative localization mobile networks. optional smoothing package censoring robustness mixture densities monte carlo auxiliary variable. extensive confirmed outperform
|
exact_dup
|
[
"33171593"
] |
148668900
|
10.1007/s10796-013-9467-0
|
The emergence of cloud datacenters enhances the capability of online data storage. Since massive data is stored in datacenters, it is necessary to effectively locate and access interest data in such a distributed system. However, traditional search techniques only allow users to search images over exact-match keywords through a centralized index. These techniques cannot satisfy the requirements of content based image retrieval (CBIR). In this paper, we propose a scalable image retrieval framework which can efficiently support content similarity search and semantic search in the distributed environment. Its key idea is to integrate image feature vectors into distributed hash tables (DHTs) by exploiting the property of locality sensitive hashing (LSH). Thus, images with similar content are most likely gathered into the same node without the knowledge of any global information. For searching semantically close images, the relevance feedback is adopted in our system to overcome the gap between low-level features and high-level features. We show that our approach yields high recall rate with good load balance and only requires a few number of hops
|
A scalable approach for content based image retrieval in cloud datacenter
|
a scalable approach for content based image retrieval in cloud datacenter
|
emergence datacenters enhances capability storage. massive stored datacenters effectively locate system. traditional match keywords centralized index. satisfy retrieval cbir propose scalable retrieval efficiently similarity semantic environment. integrate hash tables dhts exploiting locality hashing gathered information. searching semantically relevance adopted overcome features. balance hops
|
exact_dup
|
[
"33171628"
] |
148674337
|
10.1007/s12652-014-0244-9
|
Human activity attracting a lot of research activity in several fields including the use of wireless sensors, positioning technologies and techniques, embedded computing, remote sensing and energy management among others.\ud
There are a number of applications where the results of those investigations can be applied, including ambient intelligence to support human activity, particularly the elderly and disabled people. Ambient intelligence is a new paradigm for the information and communications technologies where the electronic/digital environment takes care of the people presence and their needs, becoming an active, adaptive and responsive environment
|
Advances in technologies and techniques for ambient intelligence
|
advances in technologies and techniques for ambient intelligence
|
attracting wireless sensors positioning technologies embedded remote sensing others. investigations ambient intelligence elderly disabled people. ambient intelligence paradigm communications technologies digital becoming adaptive responsive
|
exact_dup
|
[
"33176302"
] |
149226961
|
10.1007/s12064-011-0136-x
|
Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)Autocatalytic cycles are rather widespread in nature and in several theoretical models of catalytic reaction networks their emergence is hypothesized to be inevitable when the network is or becomes sufficiently complex. Nevertheless, the emergence of autocatalytic cycles has been never observed in wet laboratory experiments. Here, we present a novel model of catalytic reaction networks with the explicit goal of filling the gap between theoretical predictions and experimental findings. The model is based on previous study of Kauffman, with new features in the introduction of a stochastic algorithm to describe the dynamics and in the possibility to increase the number of elements and reactions according to the dynamical evolution of the system. Furthermore, the introduction of a temporal threshold allows the detection of cycles even in our context of a stochastic model with asynchronous update. In this study, we describe the model and present results concerning the effect on the overall dynamics of varying (a) the average residence time of the elements in the reactor, (b) both the composition of the firing disk and the concentration of the molecules belonging to it, (c) the composition of the incoming flux
|
A stochastic model of autocatalytic reaction networks
|
a stochastic model of autocatalytic reaction networks
|
erworben rahmen schweizer nationallizenzen autocatalytic cycles widespread catalytic emergence hypothesized inevitable sufficiently complex. nevertheless emergence autocatalytic cycles never experiments. catalytic goal filling findings. kauffman stochastic system. cycles stochastic asynchronous update. concerning residence reactor firing belonging incoming
|
exact_dup
|
[
"148756880"
] |
15048868
|
10.1103/PhysRevA.62.015801
|
We consider the model of a nondegenerate parametric oscillator, in the adiabatic limit of strongly damped pump mode, and find an exact analytic solution for the joint two-mode Wigner function in the steady-state regime. The one-mode Wigner functions for the individual signal and idler modes are derived as well. This gives an explicit and complete phase-space representation of this two-mode nonequilibrium quantum system. Simple examples are given illustrating the phase-space images of optical bistability and the phase diffusion effect
|
Exact steady-state Wigner function for a nondegenerate parametric oscillator
|
exact steady-state wigner function for a nondegenerate parametric oscillator
|
nondegenerate parametric oscillator adiabatic damped pump analytic wigner steady regime. wigner idler well. nonequilibrium system. illustrating bistability
|
exact_dup
|
[
"15122986"
] |
151191238
|
10.1002/aur.1381
|
Adaptation paradigms seek to bias subsequently viewed stimuli through prolonged exposure to an adapting stimulus, thereby giving rise to an aftereffect. Recent experiments have found that children with autism spectrum disorders (ASD) show reduced facial aftereffects, prompting some researchers to speculate that all individuals with ASD exhibit deficient facial adaptation. However, caution is required when generalizing findings from samples of children with ASD to the wider ASD population. The reduced facial aftereffects seen in child samples may instead reflect delayed or atypical developmental trajectories, whereby individuals with ASD are slower to develop adaptive mechanisms. In the present study, two experiments were conducted to determine whether high-functioning adults with ASD also show diminished aftereffects for facial identity and expression. In Experiment 1, using a procedure that minimized the contribution of low-level retinotopic adaptation, we observed substantial aftereffects comparable to those seen in matched controls, for both facial identity and expression. A similar pattern of results was seen in Experiment 2 using a revised procedure that increased the contribution of retinotopic adaptation to the facial aftereffects observed. That adults with autism can show robust facial aftereffects raises the possibility that group differences are seen only at particular points during development, and may not be a lifelong feature of the condition
|
Intact facial adaptation in autistic adults
|
intact facial adaptation in autistic adults
|
adaptation paradigms seek subsequently viewed stimuli prolonged adapting stimulus thereby giving aftereffect. autism disorders facial aftereffects prompting researchers speculate exhibit deficient facial adaptation. caution generalizing wider population. facial aftereffects reflect delayed atypical developmental trajectories whereby slower adaptive mechanisms. functioning adults diminished aftereffects facial expression. minimized retinotopic adaptation substantial aftereffects comparable matched facial expression. revised retinotopic adaptation facial aftereffects observed. adults autism robust facial aftereffects raises lifelong
|
exact_dup
|
[
"29017719"
] |
152391368
|
10.1016/j.nimb.2004.12.087
|
ThéorieThe results of theoretical investigation of angular distributions of radiation from a relativistic electron passing through a thin crystal at a small angle to the crystal axis are presented. The electron trajectories in crystal were simulated using the binary collision model which takes into account both coherent and incoherent effects at scattering. The angular distribution of radiation was calculated as a sum of radiation from each electron. It is shown that there are nontrivial angular distributions of the emitted photons, which is connected to the superposition of the coherent scattering of electrons by atomic rows (doughnut scattering effect) and the suppression of the radiation due to the multiple scattering effect (similar to the Landau-Pomeranchuk-Migdal effect in an amorphous matter). The orientation dependence of angular distribution of radiation is also analyzed
|
Angular distribution of radiation by relativistic electrons in a thin crystal
|
angular distribution of radiation by relativistic electrons in a thin crystal
|
théoriethe relativistic passing presented. trajectories collision coherent incoherent scattering. electron. nontrivial emitted photons superposition coherent rows doughnut suppression landau pomeranchuk migdal amorphous
|
exact_dup
|
[
"46781769"
] |
154670963
|
10.1016/j.janxdis.2007.10.003
|
-Objective:
Assess the prevalence of autistic traits (AST) in pediatric obsessive-compulsive disorder (OCD) and relate them to OCD co-morbidity and compare them with published normative data.
Methods:
Pediatric patients with obsessive-compulsive disorder (n = 109) according to the DSM-IV were studied using parent ratings of the Autistic Symptom/Syndrome Questionnaire to assess AST symptoms as a continuous rather than categorical trait. The KSADS, a semi-structured psychiatric interview, was used for the psychiatric diagnostic evaluation. Also, the Children's Yale-Brown Obsessive-Compulsive Scale was used to assess OCD severity and other clinical features.
Results:
AST was common among our patients. Symptom scores were highest in cases with co-morbid Autistic Spectrum Disorders, but cases with other co-morbidities as tics/Tourette and attention/behavioral disorders also scored higher. All sub-groups, including OCD without these co-morbidities scored higher than the Swedish normative group. Using ANOVA, co-morbid ASD and tics/Tourette (plus a term for gender by tic interaction indicating that girls with tics scored high, otherwise low) and pathological doubt contributed (R2 = .41) to the AST-traits, while OCD severity and co-morbid anxiety- and depressive disorders did not.
Conclusion:
AST traits are prevalent in OCD and seem to be intricately associated with the co-morbidities as well as the OCD syndrome itself. The findings might have implication for our nosological understanding of OCD which currently is discussed
|
Autism spectrum traits in children and adolescents with obsessive-compulsive disorder (OCD)
|
autism spectrum traits in children and adolescents with obsessive-compulsive disorder (ocd)
|
prevalence autistic traits pediatric obsessive compulsive disorder relate morbidity normative data. pediatric obsessive compulsive disorder parent ratings autistic symptom syndrome questionnaire categorical trait. ksads structured psychiatric interview psychiatric diagnostic evaluation. yale brown obsessive compulsive severity features. patients. symptom morbid autistic disorders morbidities tics tourette behavioral disorders scored higher. morbidities scored swedish normative group. anova morbid tics tourette gender girls tics scored pathological doubt contributed traits severity morbid anxiety depressive disorders not. traits prevalent seem intricately morbidities syndrome itself. implication nosological
|
exact_dup
|
[
"52132130"
] |
154671296
|
10.1093/nar/gkt342
|
The immense increase in availability of genomic scale datasets, such as those provided by the ENCODE and Roadmap Epigenomics projects, presents unprecedented opportunities for individual researchers to pose novel falsifiable biological questions. With this opportunity, however, researchers are faced with the challenge of how to best analyze and interpret their genome-scale datasets. A powerful way of representing genome-scale data is as feature-specific coordinates relative to reference genome assemblies, i.e. as genomic tracks. The Genomic HyperBrowser (http://hyperbrowser.uio.no) is an open-ended web server for the analysis of genomic track data. Through the provision of several highly customizable components for processing and statistical analysis of genomic tracks, the HyperBrowser opens for a range of genomic investigations, related to, e.g., gene regulation, disease association or epigenetic modifications of the genome.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited
|
The Genomic HyperBrowser: an analysis web server for genome-scale data
|
the genomic hyperbrowser: an analysis web server for genome-scale data
|
immense availability genomic datasets encode roadmap epigenomics projects presents unprecedented opportunities researchers pose falsifiable questions. opportunity researchers faced challenge analyze interpret datasets. powerful representing assemblies i.e. genomic tracks. genomic hyperbrowser ended server genomic track data. provision customizable genomic tracks hyperbrowser opens genomic investigations e.g. epigenetic modifications genome.this creative commons attribution permits unrestricted reuse reproduction properly cited
|
exact_dup
|
[
"52132473"
] |
155660140
|
10.1080/02726351.2016.1211778
|
The microstructure of high-temperature metals such as Ti, Ni, and Cr can be modified using ceramic nanoparticles to form metal matrix nanocomposites (MMNCs). Such materials are generally prepared via powder metallurgy routes. In this study, 25 wt. % SiCnp and Al2O3np were separately ball-milled as a reinforcement of Ti, Cr, and Ni matrices to investigate their effects on the phase formation and morphology of the MMNCs. The XRD, SEM, and FESEM results indicated that the alumina-metal system could not be thermodynamically stable in a high-energy ball mill, while the SiC reinforcement could be retained and milled with the metals even after 24 hours. It was further observed that the distribution of nanoparticles was not affected by the type of metal, ceramic, and milling time. Finally, it was determined that the nanoparticles significantly reduced the average particle size of composite powders
|
Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt. % (Al2O3np, SiCnp)
|
microstructural characterization of ball-milled metal matrix nanocomposites (cr, ni, ti)-25 wt. % (al2o3np, sicnp)
|
microstructure metals ceramic nanoparticles nanocomposites mmncs powder metallurgy routes. sicnp separately ball milled reinforcement morphology mmncs. fesem alumina thermodynamically ball mill reinforcement retained milled metals hours. nanoparticles ceramic milling time. nanoparticles composite powders
|
exact_dup
|
[
"154367755"
] |
18292690
|
10.1088/1757-899X/52/5/052002
|
The present wind turbine is a small one which can be used on roofs or in gardens.
This turbine has a vertical axis. Each turbine blade combines a rotating movement around its
own axis and around the main rotor axis. Due to this combination of movements, flow around
this turbine is highly unsteady and needs to be modelled by unsteady calculation. The present
work is an extended study starting in 2009. The benefits of combined rotating blades have been
shown. The performance coefficient of this kind of turbine is very good for some blade stagger
angles. Spectral analysis of unsteady results on specific points in the domain and temporal
forces on blades was already presented for elliptic blades. The main aim here is to compare two
kinds of blades in case of the best performances
|
Unsteady flow field in a mini VAWT with relative rotation blades: analysis of temporal results
|
unsteady flow field in a mini vawt with relative rotation blades: analysis of temporal results
|
turbine roofs gardens. turbine axis. turbine blade combines rotating movement rotor axis. movements turbine unsteady modelled unsteady calculation. benefits rotating blades shown. kind turbine blade stagger angles. unsteady forces blades elliptic blades. kinds blades performances
|
exact_dup
|
[
"143692432"
] |
185562691
|
10.1007/s00170-013-5257-6
|
The results of mathematical simulation have been carried out for the pattern of working medium motion providing the technological process of finishing–grinding treatment in an oscillating reservoir. With use of physics laws, it is ascertained and grounded that the flow of granules at the plane wall of reservoir is travelling oppositely to the source of vibrations, whereas the granules are drifting on the cycloid–trochoid trajectories from the wall of reservoir, where the looped displacement is maximal, to the center of reservoir in which the shift of granules is reduced to minimum because of damping and dissipation effect. The received theoretical regulations have a fundamental nature and can be used at the account of technological parameters of designed vibration machines
|
Mathematical simulation of motion of working medium at finishing-grinding treatment in the oscillating reservoir
|
mathematical simulation of motion of working medium at finishing-grinding treatment in the oscillating reservoir
|
mathematical technological finishing–grinding oscillating reservoir. laws ascertained grounded granules reservoir travelling oppositely vibrations granules drifting cycloid–trochoid trajectories reservoir looped displacement maximal reservoir granules damping dissipation effect. regulations technological vibration machines
|
exact_dup
|
[
"185669205"
] |
19125365
|
10.1002/ajhb.20458
|
The present study is part of a large research project on growth, development, nutrition, and health of Caboclo populations from the Brazilian Amazon. The aim of this paper is to analyze the age of menarche in adolescents (N = 164) and adult women (219) in the studied populations. Caboclo are admixed rural, peasant groups that live along the Amazon river and its tributaries, and there are few previous studies about them. Probit analysis of the status quo data yielded a median age at menarche of 12.29 ± 1.76 years. The retrospective method was applied to recall data of the 77 post-menarcheal adolescents, yielding an average of 13.06 ± 1.27 years. Number of children in the family did not show any statistical influence on age at menarche in any age group. In adult women, age at menarche decreased from 14.50 in those born in 1930 to 12.88 for those born in 1980 (F = 4.371, P = 0.001). The downward trend found was, on average, 0.237 year per decade in the study period. The median age at menarche in the adolescents (12.29 years) is one of the lowest values found for Central and South American populations. In the ecological context, a low age at menarche could be an adaptive advantage because it provides a greater chance for reproduction at a young age in an environment where, until recently, life expectancy was low. As has been reported for other developing countries, the change found in age at menarche in the women born from the 1930s to the 1980s is likely to be related to changes in health and nutritional factors that occurred in Brazil because this country experienced significant improvement in living standards related to education, vaccination, and health conditions, which, although not equally, reached all regions after the 1960s. Am. J. Hum. Biol. 18:83-92, 2006. © 2005 Wiley-Liss, Inc.http://dx.doi.org/10.1002/ajhb.2045
|
Secular trends in age at menarche among Caboclo populations from Pará, Amazonia, Brazil: 1930-1980
|
secular trends in age at menarche among caboclo populations from pará, amazonia, brazil: 1930-1980
|
nutrition caboclo brazilian amazon. analyze menarche adolescents populations. caboclo admixed rural peasant live amazon river tributaries them. probit yielded menarche years. retrospective menarcheal adolescents yielding years. menarche group. menarche born born downward decade period. menarche adolescents populations. ecological menarche adaptive advantage chance reproduction expectancy low. menarche born nutritional occurred brazil experienced living standards vaccination equally reached hum. biol. wiley liss inc. ajhb.
|
exact_dup
|
[
"144012801"
] |
19717190
|
10.1103/PhysRevE.69.046601
|
We present a stability theory for kink propagation in chains of coupled oscillators and a different algorithm for the numerical study of kink dynamics. The numerical solutions are computed using an equivalent integral equation instead of a system of differential equations. This avoids uncertainty about the impact of artificial boundary conditions and discretization in time. Stability results also follow from the integral version. Stable kinks have a monotone leading edge and move with a velocity larger than a critical value which depends on the damping strength
|
Nonlinear stability of oscillatory wave fronts in chains of coupled oscillators
|
nonlinear stability of oscillatory wave fronts in chains of coupled oscillators
|
kink propagation chains oscillators kink dynamics. equations. avoids artificial discretization time. version. kinks monotone move damping
|
exact_dup
|
[
"2611812"
] |
20051746
|
10.1063/1.4711371
|
This paper is concerned with the low dimensional structure of optimal streaks in a wedge flow boundary layer, which have been recently shown to consist of a unique (up to a constant factor) three-dimensional streamwise evolving mode, known as the most unstable streaky mode. Optimal streaks exhibit a still unexplored/unexploited approximate self-similarity (not associated with the boundary layer self-similarity), namely the streamwise velocity re-scaled with their maximum remains almost independent of both the spanwise wavenumber and the streamwise coordinate; the remaining two velocity components instead do not satisfy this property. The approximate self-similar behavior is analyzed here and exploited to further simplify the description of optimal streaks. In particular, it is shown that streaks can be approximately described in terms of the streamwise evolution of the scalar amplitudes of just three one-dimensional modes, providing the wall normal profiles of the streamwise velocity and two combinations of the cross flow velocity components; the scalar amplitudes obey a singular system of three ordinary differential equations (involving only two degrees of freedom), which approximates well the streamwise evolution of the general streaks
|
Low-dimensional modeling of streaks in a wedge flow boundary layer
|
low-dimensional modeling of streaks in a wedge flow boundary layer
|
concerned streaks wedge consist streamwise evolving unstable streaky mode. streaks exhibit unexplored unexploited approximate similarity similarity streamwise scaled spanwise wavenumber streamwise coordinate satisfy property. approximate exploited simplify streaks. streaks streamwise amplitudes streamwise combinations amplitudes obey singular ordinary involving freedom approximates streamwise streaks
|
exact_dup
|
[
"148664291"
] |
25180495
|
10.1016/0375-9474(95)00492-0
|
A model for the gamma p ----> pion+ pion- p reaction developed earlier is extended to account for all isospin channels. The model includes N, Delta(1232), N^*(1440) and N^*(1520) as intermediate baryonic states and the rho-meson as an intermediate two pion resonance. Although many terms contribute to the cross section, some channels exhibit particular sensitivity to certain mechanisms of resonance excitation or decay and the reactions provide novel information on such mechanisms. In particular the gamma N ----> N^*(1520) ----> Delta(1232) pion process affects all of the channels and is a key ingredient in the interpretation of the data. Comparison is made with all available data and the agreement is good in some of the channels. The remaining discrepancies is some other channels are discussed
|
Double pion photoproduction on the nucleon: study of the isospin channels
|
double pion photoproduction on the nucleon: study of the isospin channels
|
gamma pion pion isospin channels. delta baryonic meson pion resonance. exhibit mechanisms. gamma delta pion affects ingredient data. channels. discrepancies
|
exact_dup
|
[
"71046196"
] |
2630402
|
10.1103/PhysRevE.62.6135
|
The influence of an external electric field on the current in charged systems
is investigated. The results from the classical hierarchy of density matrices
are compared with the results from the quantum kinetic theory. The kinetic
theory yields a systematic treatment of the nonlinear current beyond linear
response. To this end the dynamically screened and field-dependent
Lenard-Balescu equation is integrated analytically and the nonlinear relaxation
field is calculated. The classical linear response result known as Debye -
Onsager relaxation effect is only obtained if asymmetric screening is assumed.
Considering the kinetic equation of one specie the other species have to be
screened dynamically while the screening with the same specie itself has to be
performed statically. Different other approximations are discussed and
compared.Comment: language correction
|
Nonlinear relaxation field in charged systems under high electric fields
|
nonlinear relaxation field in charged systems under high electric fields
|
investigated. hierarchy theory. response. dynamically screened lenard balescu analytically relaxation calculated. debye onsager relaxation asymmetric screening assumed. specie screened dynamically screening specie statically. approximations
|
exact_dup
|
[
"25285742"
] |
30810423
|
10.1007/jhep06(2011)003
|
We have explored properties of an extension of the Inert Doublet Model by the
addition of an extra non-inert scalar doublet. The model offers a possibility of CP violation
in the scalar sector and a candidate for the Dark Matter. Allowed regions in the plane
spanned by the mass of the Dark-Matter particle and the lightest neutral Higgs particle
have been identified, and constraints from direct-detection experiments have been studied.
For favorable parameter regions one may observe long-lived charged particles produced at
the LHC
|
Exploring the CP-violating Inert-Doublet Model
|
exploring the cp-violating inert-doublet model
|
explored inert doublet extra inert doublet. offers violation candidate matter. spanned lightest neutral studied. favorable lived
|
exact_dup
|
[
"30810421"
] |
30846504
|
10.1016/j.marenvres.2011.04.003
|
Subsurface sediments from a pockmark area in South-Western Barents Sea have been earlier found to contain elevated levels of petroleum-related polycyclic aromatic hydrocarbons. This work describes a comprehensive analysis of various biomarkers, including the highly source-specific hopanes, in a 4.5 m long gravity core from the same area, together with subsurface sediment samples from other areas in the region without pockmarks present (“background samples”). A clear difference between the pockmark gravity core and the background sediment cores was found, both with regard to genesis and the level of transformation of organic matter. A number of indicator parameters, such as methylphenanthrene index (MPI-1), point towards a significantly higher maturity of hydrocarbons in the pockmark core throughout its length as compared to the other sampled locations. Higher contents of microbial hopanoids (hopenes) may indicate the former presence of petroleum. These findings confirm the hypothesis of a natural hydrocarbon source in the deeper strata present in the studied location with pockmarks
|
Petroleum-related hydrocarbons in deep and subsurface sediments from South-Western Barents Sea
|
petroleum-related hydrocarbons in deep and subsurface sediments from south-western barents sea
|
subsurface sediments pockmark barents elevated petroleum polycyclic aromatic hydrocarbons. describes comprehensive biomarkers hopanes subsurface sediment pockmarks “background samples” pockmark sediment cores regard genesis matter. indicator methylphenanthrene maturity hydrocarbons pockmark sampled locations. contents microbial hopanoids hopenes former petroleum. confirm hydrocarbon deeper strata pockmarks
|
exact_dup
|
[
"30831905",
"52047496",
"52051397"
] |
30906935
|
10.1098/rsta.2014.0376
|
This review presents modelling techniques and processes that govern landslide tsunami generation, with emphasis on tsunamis induced by fully submerged landslides. The analysis focuses on a set of representative examples in simplified geometries demonstrating the main kinematic landslide parameters influencing initial tsunami amplitudes and wavelengths. Scaling relations from laboratory experiments for subaerial landslide tsunamis are also briefly reviewed. It is found that the landslide acceleration determines the initial tsunami elevation for translational landslides, while the landslide velocity is more important for impulsive events such as rapid slumps and subaerial landslides. Retrogressive effects stretch the tsunami, and in certain cases produce enlarged amplitudes due to positive interference. In an example involving a deformable landslide, it is found that the landslide deformation has only a weak influence on tsunamigenesis. However, more research is needed to determine how landslide flow processes that involve strong deformation and long run-out determine tsunami generation
|
On the characteristics of landslide tsunamis
|
on the characteristics of landslide tsunamis
|
presents govern landslide tsunami emphasis tsunamis submerged landslides. focuses simplified geometries demonstrating kinematic landslide influencing tsunami amplitudes wavelengths. subaerial landslide tsunamis briefly reviewed. landslide acceleration determines tsunami elevation translational landslides landslide impulsive slumps subaerial landslides. retrogressive stretch tsunami enlarged amplitudes interference. involving deformable landslide landslide deformation tsunamigenesis. landslide involve deformation tsunami
|
exact_dup
|
[
"154668539"
] |
30934847
|
10.1016/j.aca.2015.02.044
|
In this work, a new type of miniaturized fibre-coupled solid-state light source is demonstrated as an excitation source for fluorescence detection in capillary electrophoresis. It is based on a parabolically shaped micro- light emitting diode (µ-LED) array with a custom band-pass optical interference filter (IF) deposited at the back of the LED substrate. The GaN µ-LED array consisted of 270 individual µ-LED elements with peak emission at 470nm, each about 14µm in diameter and operated as a single unit. Light was extracted through the transparent substrate material, and coupled to an optical fibre (400µm in diameter, numerical aperture NA = 0.37), to form an integrated µ-LED-IF-OF light source component. This packaged µ-LED-IFOF light source emitted approximately 225µW of optical power at a bias current of 20mA. The bandpass IF filter was designed to reduce undesirable LED light emissions in the wavelength range above 490 nm . Devices with and without IF were compared in terms of optical power output, spectral characteristics as well as LOD values. While the IF consisted of only 7.5 pairs (15 layers) of SiO2/HfO2 layers it resulted in an improvement of the baseline noise as well as the detection limit measured using fluorescein as test analyte, both by approximately one order of magnitude, with a LOD of 1×10-8 mol/L obtained under optimised conditions. The µ-LED-IF-OF light source was then demonstrated for use in capillary electrophoresis with fluorimetric detection. Limits of detection obtained by this device were compared to those obtained with a commercial fibre coupled LED device
|
Fibre coupled micro-light emitting diode array light source with integrated band-pass filter for fluorescence detection in miniaturised analytical systems
|
fibre coupled micro-light emitting diode array light source with integrated band-pass filter for fluorescence detection in miniaturised analytical systems
|
miniaturized fibre fluorescence capillary electrophoresis. parabolically shaped micro emitting diode array custom pass interference filter deposited substrate. array consisted operated unit. transparent fibre aperture component. packaged ifof emitted bandpass filter undesirable devices values. consisted resulted fluorescein analyte optimised conditions. capillary electrophoresis fluorimetric detection. commercial fibre
|
exact_dup
|
[
"147608947"
] |
33899275
|
10.1002/wcc.369
|
Continuation of the U.S.'s historical pattern addressing energy problems only in times of crisis is unlikely to catalyze a transition to an energy system with fewer adverse social impacts. Instead, the U.S. needs to bolster support for energy innovation when the perceived urgency of energy-related problems appears to be receding. Because of the lags involved in both the energy system and the climate system, decarbonizing the economy will require extraordinary persistence over decades. This need for sustained commitment is in contrast to the last several decades, which have been marked by volatility and cycles of boom and bust. In contrast to the often-repeated phrase that one should 'never let a good crisis go to waste,' the U.S. needs to most actively foster energy innovation when aspects of energy and climate problems appear to be improving. We describe the rationale for a 'countercyclical' approach to energy and climate policy, which involves precommitment to a set of policies that go into effect once a set of trigger conditions are met
|
Countercyclical energy and climate policy for the US
|
countercyclical energy and climate policy for the us
|
continuation u.s. historical addressing crisis unlikely catalyze fewer adverse impacts. u.s. bolster innovation perceived urgency receding. lags decarbonizing economy extraordinary persistence decades. sustained commitment decades marked volatility cycles boom bust. repeated phrase never crisis waste u.s. actively foster innovation improving. rationale countercyclical involves precommitment policies trigger
|
exact_dup
|
[
"52953518"
] |
35083581
|
10.1007/JHEP06(2014)065
|
We elaborate a cut (truncated) Mellin moments (CMM) approach that is constructed to study deep inelastic scattering in lepton-hadron collisions at the natural kinematic constraints. We show that generalized CMM obtained by multiple integrations of the original parton distribution f ( x, μ 2 ) as well as ones obtained by multiple differentiations of this f ( x, μ 2 ) also satisfy the DGLAP equations with the correspondingly transformed evolution kernel P ( z ). Appropriate classes of CMM for the available experimental kinematic range are suggested and analyzed. Similar relations can be obtained for the structure functions F ( x ), being the Mellin convolution F = C * f , where C is the coefficient function of the process
|
Cut moments and a generalization of DGLAP equations
|
cut moments and a generalization of dglap equations
|
elaborate truncated mellin moments inelastic lepton hadron collisions kinematic constraints. integrations parton differentiations satisfy dglap correspondingly transformed kernel kinematic analyzed. mellin convolution
|
exact_dup
|
[
"25020308"
] |
35084734
|
10.1093/ptep/ptu151
|
We show that the sizable -term contributions to the sfermion mass spectrum can be signatures of a certain grand unified theory (GUT), GUT. Note that these -term contributions destroy the degeneracy of sfermion masses among different generations in this model. This is different from previous works, which have argued for the -term contributions, which destroy the degeneracy of masses only between sfermions with different quantum charges, as a signature of GUT with a larger rank unification group. Such -terms are strongly constrained by the flavor-changing neutral current processes if the SUSY breaking scale is the weak scale. However, in , a natural SUSY-type sfermion mass spectrum is obtained, and if the masses of sfermions are larger than to realize the 126 GeV Higgs and the other sfermion masses are , then a sizable -term contribution is allowed. If these -terms can be observed in future experiments, like the 100 TeV proton collider or muon collider, we may confirm the GUT
|
Sizable D -term contribution as a signature of the E 6 SU (2) F U (1) A SUSY GUT model
|
sizable d -term contribution as a signature of the e 6 su (2) f u (1) a susy gut model
|
sizable sfermion signatures grand unified gut. destroy degeneracy sfermion generations model. argued destroy degeneracy sfermions charges signature unification group. constrained flavor changing neutral susy breaking scale. susy sfermion sfermions realize sfermion sizable allowed. proton collider muon collider confirm
|
exact_dup
|
[
"35084640",
"35084827"
] |
35087809
|
10.1088/1475-7516/2015/03/022
|
As the LHC continues to search for new weakly interacting particles, it is important to remember that the search is strongly motivated by the existence of dark matter. In view of a possible positive signal, it is essential to ask whether the newly discovered weakly interacting particle can be be assigned the label “dark matter”. Within a given set of simplified models and modest working assumptions, we reinterpret the relic abundance bound as a relic abundance range, and compare the parameter space yielding the correct relic abundance with projections of the Run II exclusion regions. Assuming that dark matter is within the reach of the LHC, we also make the comparison with the potential 5σ discovery regions. Reversing the logic, relic density calculations can be used to optimize dark matter searches by motivating choices of parameters where the LHC can probe most deeply into the dark matter parameter space. In the event that DM is seen outside of the region giving the correct relic abundance, we will learn that either thermal relic DM is ruled out in that model, or the DM-quark coupling is suppressed relative to the DM coupling strength to other SM particles
|
Making the most of the relic density for dark matter searches at the LHC 14 TeV Run
|
making the most of the relic density for dark matter searches at the lhc 14 tev run
|
continues weakly interacting remember motivated matter. newly discovered weakly interacting assigned label “dark matter”. simplified modest assumptions reinterpret relic abundance relic abundance yielding relic abundance projections exclusion regions. discovery regions. reversing logic relic optimize searches motivating choices deeply space. giving relic abundance learn relic ruled suppressed
|
exact_dup
|
[
"35087725"
] |
35089817
|
10.1088/1475-7516/2015/05/044
|
A high-statistics measurement of the neutrinos from a galactic core-collapse supernova is extremely important for understanding the explosion mechanism, and studying the intrinsic properties of neutrinos themselves. In this paper, we explore the possibility to constrain the absolute scale of neutrino masses mν via the detection of galactic supernova neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO) with a 20 kiloton liquid-scintillator detector. In assumption of a nearly-degenerate neutrino mass spectrum and a normal mass ordering, the upper bound on the absolute neutrino mass is found to be mν < (0.83 ± 0.24) eV at the 95% confidence level for a typical galactic supernova at a distance of 10 kpc, where the mean value and standard deviation are shown to account for statistical fluctuations. For comparison, we find that the bound in the Super-Kamiokande experiment is mν < (0.94 ± 0.28) eV at the same confidence level. However, the upper bound will be relaxed when the model parameters characterizing the time structure of supernova neutrino fluxes are not exactly known, and when the neutrino mass ordering is inverted
|
Constraining absolute neutrino masses via detection of galactic supernova neutrinos at JUNO
|
constraining absolute neutrino masses via detection of galactic supernova neutrinos at juno
|
neutrinos galactic collapse supernova extremely explosion studying intrinsic neutrinos themselves. explore constrain galactic supernova neutrinos jiangmen underground observatory juno kiloton scintillator detector. nearly degenerate ordering confidence galactic supernova fluctuations. super kamiokande confidence level. relaxed characterizing supernova fluxes ordering inverted
|
exact_dup
|
[
"35089902"
] |
35090163
|
10.1007/JHEP04(2015)172
|
In the presence of a light singlino-like LSP in the NMSSM, the missing transverse energy — MET — signature of squark/gluino production can be considerably reduced. Instead, a pair of Higgs bosons is produced in each event. We propose benchmark points for such scenarios, which differ in the squark and gluino masses, and in their decay cascades. Events for these points are simulated for the run II of the LHC at 13 TeV centre of mass energy. After cuts on the transverse momenta of at least four jets, and requiring two τ-leptons from one Higgs decay, we find that the invariant mass of two b -jets from the other Higgs decay shows clear peaks above the background. Despite the reduced MET, this search strategy allows to see signals for sufficiently large integrated luminosities, depending on the squark/gluino masses
|
Excessive Higgs pair production with little MET from squarks and gluinos in the NMSSM
|
excessive higgs pair production with little met from squarks and gluinos in the nmssm
|
singlino nmssm missing signature squark gluino considerably reduced. bosons event. propose benchmark scenarios squark gluino cascades. energy. cuts momenta jets requiring leptons jets background. sufficiently luminosities squark gluino
|
exact_dup
|
[
"35090075"
] |
35091245
|
10.1007/JHEP03(2015)037
|
We present the results for the associated production of Higgs boson with vector boson computed at threshold N 3 LO in QCD. We use the recently available result of the threshold contributions to the inclusive Drell-Yan production cross-section at third order in the strong coupling constant. We have implemented it in the publicly available computer package vh@nnlo, thereby obtaining the numerical impact of threshold N 3 LO contributions for the first time. We find that the inclusion of such corrections do reduce theoretical uncertainties resulting from the renormalization scale
|
Associated production of Higgs boson with vector boson at threshold N 3 LO in QCD
|
associated production of higgs boson with vector boson at threshold n 3 lo in qcd
|
boson boson qcd. inclusive drell constant. implemented publicly package nnlo thereby obtaining time. inclusion renormalization
|
exact_dup
|
[
"35091073",
"35091158"
] |
35092220
|
10.1007/JHEP08(2015)023
|
We consider a local U(1) B − L extension of Zee-Babu model to explain the recently observed 3.5 keV X-ray line signal. The model has three Standard model (SM)-singlet Dirac fermions with different U(1) B − L charges. A complex scalar field charged under U(1) B − L is introduced to break the U(1) B − L symmetry. After U(1) B − L symmetry breaking a remnant discrete symmetry stabilizes the lightest state of the Dirac fermions, which can be a stable dark matter (DM). The second lightest state, if mass splitting with the stable DM is about 3.5 keV, decays dominantly to the stable DM and 3.5 keV photon through two-loop diagrams, explaining the X-ray line signal. Two-loop suppression of the decay amplitude makes its lifetime much longer than the age of the universe and it can be a decaying DM candidate in large parameter region. We also introduce a real scalar field which is singlet under both the SM and U(1) B − L and can explain the current relic abundance of the Dirac fermionic DMs. If the mixing with the SM Higgs boson is small, it does not contribute to DM direct detection. The main contribution to the scattering of DM off atomic nuclei comes from the exchange of U(1) B − L gauge boson, Z ′ , and is suppressed below current experimental bound when Z ′ mass is heavy (≳10 TeV). If the singlet scalar mass is about 0.1–10 MeV, DM self-interaction can be large enough to solve small scale structure problems in simulations with the cold DM, such as, the core-vs-cusp problem and too-big-to-fail problem
|
3.5 keV X-ray line signal from dark matter decay in local U(1) B − L extension of Zee-Babu model
|
3.5 kev x-ray line signal from dark matter decay in local u(1) b − l extension of zee-babu model
|
babu signal. singlet dirac fermions charges. break symmetry. breaking remnant stabilizes lightest dirac fermions lightest splitting decays dominantly diagrams explaining signal. suppression lifetime universe decaying candidate region. singlet relic abundance dirac fermionic dms. boson detection. nuclei comes boson suppressed singlet solve cold cusp fail
|
exact_dup
|
[
"35092685",
"35092857"
] |
396985
|
10.1016/j.tourman.2011.03.007
|
This article examines the business choices made by independent farming families, when confronting the need to diversify away from traditional agricultural activities by starting farm-based tourism businesses. Based on interviews with farm family members who have set up tourism attractions on their farms, and drawing upon the concept of experiential authenticity, the article explores their self-conceptions of their family identities. In so doing, it addresses the choices and dilemmas facing farm families who attempt diversification through the tourism attraction route, and considers how this affects their attitudes towards more traditional farming activities. Using qualitative case study data, an empirically grounded framework is proposed that expresses the choices and challenges facing tourism entrepreneurial family farm members in the UK, through the conceptual lens of experiential authenticity
|
Farming and tourism enterprise: Experiential authenticity in the diversification of independent small-scale family farming
|
farming and tourism enterprise: experiential authenticity in the diversification of independent small-scale family farming
|
examines choices farming families confronting diversify away traditional agricultural farm tourism businesses. interviews farm tourism attractions farms drawing experiential authenticity explores conceptions identities. addresses choices dilemmas facing farm families attempt diversification tourism attraction route considers affects attitudes traditional farming activities. qualitative empirically grounded expresses choices challenges facing tourism entrepreneurial farm conceptual lens experiential authenticity
|
exact_dup
|
[
"398108"
] |
41139341
|
10.1007/978-3-319-11857-4
|
Abstract. A proposal for particles’ initialization in PSO is presented and discussed, with focus on costly global unconstrained optimization problems. The standard PSO iteration is reformulated such that the trajectories of the particles are studied in an extended space, combining\ud
particles’ position and speed. To the aim of exploring effectively and efficiently the optimization search space since the early iterations, the particles are initialized using sets of orthogonal vectors in the extended space (orthogonal initialization, ORTHOinit). Theoretical derivation and\ud
application to a simulation-based optimization problem in ship design are presented, showing the potential benefits of the current approach
|
A proposal of PSO particles' initialization, for costly unconstrained optimization problems: ORTHOinit
|
a proposal of pso particles' initialization, for costly unconstrained optimization problems: orthoinit
|
abstract. proposal particles’ initialization costly unconstrained problems. iteration reformulated trajectories combining particles’ speed. exploring effectively efficiently iterations initialized orthogonal orthogonal initialization orthoinit derivation ship benefits
|
exact_dup
|
[
"53179872"
] |
44737226
|
10.1073/pnas.1222471110
|
The impacts of global climate change on different aspects of humanity's diverse life-support systems are complex and often difficult to predict. To facilitate policy decisions on mitigation and adaptation strategies, it is necessary to understand, quantify, and synthesize these climate-change impacts, taking into account their uncertainties. Crucial to these decisions is an understanding of how impacts in different sectors overlap, as overlapping impacts increase exposure, lead to interactions of impacts, and are likely to raise adaptation pressure. As a first step we develop herein a framework to study coinciding impacts and identify regional exposure hotspots. This framework can then be used as a starting point for regional case studies on vulnerability and multifaceted adaptation strategies. We consider impacts related to water, agriculture, ecosystems, and malaria at different levels of global warming. Multisectoral overlap starts to be seen robustly at a mean global warming of 3 degrees C above the 1980-2010 mean, with 11% of the world population subject to severe impacts in at least two of the four impact sectors at 4 degrees C. Despite these general conclusions, we find that uncertainty arising from the impact models is considerable, and larger than that from the climate models. In a low probability-high impact worst-case assessment, almost the whole inhabited world is at risk for multisectoral pressures. Hence, there is a pressing need for an increased research effort to develop a more comprehensive understanding of impacts, as well as for the development of policy measures under existing uncertainty
|
Multisectoral climate impact hotspots in a warming world
|
multisectoral climate impact hotspots in a warming world
|
impacts humanity diverse predict. facilitate decisions mitigation adaptation quantify synthesize impacts uncertainties. crucial decisions impacts sectors overlap overlapping impacts impacts raise adaptation pressure. herein coinciding impacts hotspots. vulnerability multifaceted adaptation strategies. impacts agriculture ecosystems malaria warming. multisectoral overlap starts robustly warming impacts sectors arising considerable models. worst inhabited multisectoral pressures. pressing effort comprehensive impacts
|
exact_dup
|
[
"52952797"
] |
46760995
|
10.1016/j.apradiso.2013.01.037
|
International audienceModeling the radio-induced effects in biological medium still requires accurate physics models to describe the interactions induced by all the charged particles present in the irradiated medium in detail. These interactions include inelastic as well as elastic processes. To check the accuracy of the very low energy models recently implemented into the GEANT4 toolkit for modeling the electron slowing-down in liquid water, the simulation of electron dose point kernels remains the preferential test. In this context, we here report normalized radial dose profiles, for mono-energetic point sources, computed in liquid water by using the very low energy "GEANT4-DNA" physics processes available in the GEANT4 toolkit. In the present study, we report an extensive intra-comparison of profiles obtained by a large selection of existing and well-documented Monte-Carlo codes, namely, EGSnrc, PENELOPE, CPA100, FLUKA and MCNPX
|
Dose point kernels in liquid water: An intra-comparison between GEANT4-DNA and a variety of Monte Carlo codes.
|
dose point kernels in liquid water: an intra-comparison between geant4-dna and a variety of monte carlo codes.
|
audiencemodeling irradiated detail. inelastic elastic processes. check implemented geant toolkit slowing kernels preferential test. mono energetic geant geant toolkit. extensive intra documented monte carlo codes egsnrc penelope fluka mcnpx
|
exact_dup
|
[
"49289714",
"52683737",
"54035800"
] |
46764687
|
10.1088/0264-9381/28/11/114002
|
International audienceWe describe the present state and future evolution of the Virgo gravitational wave detector, realized by the Virgo Collaboration at the European Gravitational Observatory, in Cascina near Pisa in Italy. We summarize basic principles of the operation and the design features of the Virgo detector. We present the sensitivity evolution due to a series of intermediate upgrades called Virgo+ which is being completed this year and includes new monolithic suspensions. We describe the present scientific potential of the detector. Finally we discuss the plans for the second generation of the detector, called Advanced Virgo, introducing its new features, the expected sensitivity evolution and the scientific potential. Status of Virgo 4 Figure 1. An aerial view of the Virgo gravitational wave detector. The detector Virgo is located in the countryside of Commune of Cascina, a few km south of the city of Pisa, Tuscany
|
Status of the Virgo project
|
status of the virgo project
|
audiencewe virgo gravitational realized virgo gravitational observatory cascina pisa italy. summarize principles virgo detector. upgrades virgo completed monolithic suspensions. detector. plans advanced virgo introducing potential. virgo aerial virgo gravitational detector. virgo countryside commune cascina city pisa tuscany
|
exact_dup
|
[
"47286837",
"52729756",
"52784062"
] |
46775231
|
10.1051/jphyslet:01982004304011500
|
A macroscopic dynamical model has been used to calculate fusion cross sections for a wide number of systems ranging from 16O + 27Al to 40Ar + 165Ho. This model takes into account the reorganization of the densities and the nucleon exchanges. The possible reaction mechanisms after capture of the system into the pocket of the interaction potential are discussed Two processes contribute to fusion : compound nucleus formation and fast fission phenomenon. The calculated fusion cross sections are in overall agreement with the data
|
Macroscopic dynamics of the fusion process
|
macroscopic dynamics of the fusion process
|
macroscopic fusion ranging reorganization densities nucleon exchanges. capture pocket fusion compound nucleus fission phenomenon. fusion
|
exact_dup
|
[
"50618090",
"53021069"
] |
46780954
|
10.1016/j.nima.2006.05.097
|
Microchannel plates (MCP) are widely used in different fields of science and technology. They have good operational parameters, such as short response time (<1 ns), good spatial resolution, sensitivity up to single electron mode, high radiation hardness, immunity to magnetic fields. We propose a new kind of MCP based on an anodic aluminum oxide substrate formed by electrochemical oxidation of aluminium. This work presents preliminary results on Al2O3 based MCPs. A research program is proposed which includes studies of the electrophysical properties of this MCPs in function of various geometric parameters (thickness, channel diameter to length ratio, effective surface, etc.)
|
Development of micro-channel plates on a basis of aluminium oxide
|
development of micro-channel plates on a basis of aluminium oxide
|
microchannel plates widely technology. operational hardness immunity fields. propose kind anodic aluminum oxide electrochemical oxidation aluminium. presents preliminary mcps. electrophysical mcps geometric etc.
|
exact_dup
|
[
"152385217",
"47314047"
] |
46782344
|
10.1016/j.nuclphysa.2003.11.010
|
The barriers standing against the formation of superheavy elements and their consecutive $\alpha$ decay have been determined in the quasimolecular shape path within a Generalized Liquid Drop Model including the proximity effects between nucleons in a neck, the mass and charge asymmetry, a precise nuclear radius and the shell effects given by the Droplet Model. For moderately asymmetric reactions double-hump potential barriers stand and fast fission of compact shapes in the outer well is possible. Very asymmetric reactions lead to one hump barriers which can be passed only with a high energy relatively to the superheavy element energy. Then, only the emission of several neutrons or an $\alpha$ particle can allow to reach an eventual ground state. For almost symmetric heavy-ion reactions, there is no more external well and the inner barrier is higher than the outer one
|
Entrance channels and alpha decay half-lives of the heaviest elements
|
entrance channels and alpha decay half-lives of the heaviest elements
|
barriers standing superheavy consecutive alpha quasimolecular drop proximity nucleons neck asymmetry precise droplet model. moderately asymmetric hump barriers stand fission shapes outer possible. asymmetric hump barriers passed superheavy energy. neutrons alpha eventual state. barrier outer
|
exact_dup
|
[
"2622147",
"50618632",
"53024232"
] |
47113040
|
10.1016/j.astropartphys.2009.02.008
|
In this paper we report on the data recorded with the first Antares detector line. The line was deployed on the 14th of February 2006 and was connected to the readout two weeks later. Environmental data for one and a half years of running are shown. Measurements of atmospheric muons from data taken from selected runs during the first six months of operation are presented. Performance figures in terms of time residuals and angular resolution are given. Finally the angular distribution of atmospheric muons is presented and from this the depth profile of the muon intensity is derived
|
Performance of the First ANTARES Detector Line
|
performance of the first antares detector line
|
antares line. deployed february readout later. running shown. muons runs presented. residuals given. muons muon
|
exact_dup
|
[
"152159517",
"46772934",
"52460992",
"52663260",
"52698155",
"52745951",
"52790975",
"71058472"
] |
47129603
|
10.1016/j.crhy.2003.09.007
|
Observations of the cosmic microwave background represent a remarkable source of information for modern cosmology. Besides providing impressive support for the Big Bang model itself, they quantify the overall framework, or background, for the formation of large scale structure. Most exciting, however, is the potential access these observations give to the first moments of cosmic history and to the physics reigning at such exceptionally high energies, which will remain beyond the reach of the laboratory in any foreseeable future. Upcoming experiments, such as the Planck mission, thus offer a window onto the Physics of the Third Millennium
|
Cosmological implications from the observed properties of CMB.
|
cosmological implications from the observed properties of cmb.
|
cosmic microwave remarkable modern cosmology. besides impressive bang quantify structure. exciting moments cosmic reigning exceptionally foreseeable future. upcoming planck mission offer window millennium
|
exact_dup
|
[
"52664935",
"52707980",
"52769099",
"46804461"
] |
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