cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A systematic cross-search for radio/infrared counterparts of XMM-Newton sources
Creators: name: Combi, J. A.
name: Colombo, J. F. Albacete
name: Pellizza, L.
name: Lopez-Santiago, J.
name: Romero, G. E.
name: Marti, J.
name: Muñoz-Arjonilla, A. J.
name: Sanchez-Ayaso, E.
name: Luque-Escamilla, P. L.
name: Sanchez-Sutil, J. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a catalog of cross-correlated radio, infrared and X-ray sources using a very restrictive selection criteria with an IDL-based code developed by us. The significance of the observed coincidences was evaluated through Monte Carlo simulations of synthetic sources following a well-tested protocol. We found 3320 coincident radio/X-ray sources with a high statistical significance characterized by the sum of error-weighted coordinate differences. For 997 of them, 2MASS counterparts were found. The percentage of chance coincidences is less than 1%. X-ray hardness ratios of well-known populations of objects were used to provide a crude representation of their X-ray spectrum and to make a preliminary diagnosis of the possible nature of unidentified X-ray sources. The results support the fact that the X-ray sky is largely dominated by Active Galactic Nuclei at high galactic latitudes (|b| >= 10^\circ). At low galactic latitudes (|b| <= 10^\circ) most of unidentified X-ray sources (~94%) lie at |b| <= 2^\circ. This result suggests that most of the unidentified sources found toward the Milky Way plane are galactic objects. Well-known and unidentified sources were classified in different tables with their corresponding radio/infrared and X-ray properties. These tables are intended as a useful tool for researchers interested in particular identifications.
description: Accepted for publication in Ap&SS. 47 pages, 10 figures. On-line material: figures and tables
k-tuple total restrained domination and k-tuple total restrained domatic in graphs
Creators: name: Kazemi, Adel P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69

description: Let $G$ be a graph of order $n$ and size $m$ and let $k\geq 1$ be an integer. A $k$-tuple total dominating set in $G$ is called a $k$-tuple total restrained dominating set of $G$ if each vertex $x\in V(G)-S$ is adjacent to at least $k$ vertices of $V(G)-S$. The minimum number of vertices of a such sets in $G$ are the $k$-tuple total restrained domination number $γ_{\times k,t}^{r}(G)$ of $G$. The maximum number of classes of a partition of $V(G)$ such that its all classes are $k$-tuple total restrained dominating sets in $G$, is called the $k$-tuple total restrained domatic number of $G$. In this manuscript, we first find $γ_{\times k,t}^{r}(G)$, when $G$ is complete graph, cycle, bipartite graph and the complement of path or cycle. Also we will find bounds for this number when $G$ is a complete multipartite graph. Then we will know the structure of graphs $G$ which $γ_{\times k,t}^{r}(G)=m$, for some $m\geq k+1$ and give upper and lower bounds for $γ_{\times k,t}^{r}(G)$, when $G$ is an arbitrary graph. Next, we mainly present basic properties of the $k$-tuple total restrained domatic number of a graph and give bounds for it. Finally we give bounds for the $k$-tuple total restrained domination number of the complementary prism $G\bar{G}$ in terms on the similar number of $G$ and $\bar{G}$ when $G$ is a regular graph or an arbitrary graph. And then we calculate it when $G$ is cycle or path.
A New Look at the Daily Cycle of Trade Wind Cumuli
Creators: name: Vial, Jessica
name: Vogel, Raphaela
name: Bony, Sandrine
name: Stevens, Bjorn
name: Winker, David M.
name: Cai, Xia
name: Hohenegger, Cathy
name: Naumann, Ann Kristin
name: Brogniez, Hélène
Publisher: name: FID GEO
Year: 2019

description: A description of the daily cycle of oceanic shallow cumulus for undisturbed boreal winter conditions in the North Atlantic trades is presented. Modern investigation tools are used, including storm-resolving and large-eddy simulations, run over large domains in realistic configurations, and observations from in situ measurements and satellite-based retrievals. Models and observations clearly show pronounced diurnal variations in cloudiness, both near cloud base and below the trade inversion. The daily cycle reflects the evolution of two cloud populations: (i) a population of nonprecipitating small cumuli with weak vertical extent, which grows during the day and maximizes around sunset, and (ii) a population of deeper precipitating clouds with a stratiform cloud layer below the trade inversion, which grows during the night and maximizes just before sunrise. Previous studies have reported that cloudiness near cloud base undergoes weak variations on time scales longer than a day. However, here we find that it can vary strongly at the diurnal time scale. This daily cycle could serve as a critical test of the models' representation of the physical processes controlling cloudiness near cloud base, which is thought to be key for the determination of the Earth's climate response to warming.
CO adsorption on neutral iridium clusters
Creators: name: Kerpal, Christian
name: Harding, Daniel J.
name: Meijer, Gerard
name: Fielicke, André
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The adsorption of carbon monoxide on neutral iridium clusters in the size range of n = 3 to 21 atoms is investigated with infrared multiple photon dissociation spectroscopy. For each cluster size only a single v(CO) band is present with frequencies in the range between 1962 cm-1 (n = 8) and 1985 cm-1 (n = 18) which can be attributed to an atop binding geometry. This behaviour is compared to the CO binding geometries on clusters of other group 9 and 10 transition metals as well as to that on extended surfaces. The preference of Ir for atop binding is rationalized by relativistic effects on the electronic structure of the later 5d metals.
An endless summer: 2018 heat episodes in Europe in the context of secular temperature variability and change
Creators: name: Hoy, Andreas
name: Hänsel, Stephanie
name: Maugeri, Maurizio
Publisher: name: FID GEO
Year: 2020

description: The year 2018 was affected by very long-lasting, stable summer conditions in vast parts of Europe, in many regions already starting in April and lasting until October. We investigate the thermal characteristics of this year in a secular time perspective, using a spatially well-distributed dataset of 67 European stations (west of ~30°E) with daily long-term air temperature observations. Our dataset comprises many of the longest and most reliable (homogenous) temperature measurements available in Europe, mainly starting already in the 19th or rarely even 18th century. Individual time series length is considered to analyse the summer 2018 temperatures into a more than two-century time perspective, while European time series are presented for the period 1855–2018 and records of five European regions are considered from 1881 onwards. The extreme long duration of the 2018 summer most clearly manifested itself in pronounced new continental maxima of summer half year (April–September) temperature averages and the number of days with maximum temperatures ≥20 and ≥25°C. Furthermore, those indices reached new local maxima at about half of our investigated stations. Records of other temperature indices, rather representing intense heat conditions, were particularly broken in the extended Baltic Sea region, supported by distinct and long-lasting anticyclonic conditions in this area. However, the extreme summer of 2003 still dominates the ranking of most of these indices on the continental level, even though it is now generally closely followed by summer 2018. We show that long-term variations of teleconnection indices and the Atlantic Multidecadal Oscillation, as well as seasonal and anthropogenic effects, supported both the recent hot summers and the extreme summer of 2018.
Generalized Lyapunov Exponent and Transmission Statistics in One-dimensional Gaussian Correlated Potentials
Creators: name: Gurevich, E.
name: Iomin, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Distribution of the transmission coefficient T of a long system with a correlated Gaussian disorder is studied analytically and numerically in terms of the generalized Lyapunov exponent (LE) and the cumulants of lnT. The effect of the disorder correlations on these quantities is considered in weak, moderate and strong disorder for different models of correlation. Scaling relations between the cumulants of lnT are obtained. The cumulants are treated analytically within the semiclassical approximation in strong disorder, and numerically for an arbitrary strength of the disorder. A small correlation scale approximation is developed for calculation of the generalized LE in a general correlated disorder. An essential effect of the disorder correlations on the transmission statistics is found. In particular, obtained relations between the cumulants and between them and the generalized LE show that, beyond weak disorder, transmission fluctuations and deviation of their distribution from the log-normal form (in a long but finite system) are greatly enhanced due to the disorder correlations. Parametric dependence of these effects upon the correlation scale is presented.
description: 18 pages, 11 figures
Resolutions and Cohomologies of Toric Sheaves. The affine case
Creators: name: Perling, Markus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Computational Geometry (cs.CG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 14M25, 13C14, 13A02, 52C35

description: We study equivariant resolutions and local cohomologies of toric sheaves for affine toric varieties, where our focus is on the construction of new examples of decomposable maximal Cohen-Macaulay modules of higher rank. A result of Klyachko states that the category of reflexive toric sheaves is equivalent to the category of vector spaces together with a certain family of filtrations. Within this setting, we develop machinery which facilitates the construction of minimal free resolutions for the smooth case as well as resolutions which are acyclic with respect to local cohomology functors for the general case. We give two main applications. First, over the polynomial ring, we determine in explicit combinatorial terms the Z^n-graded Betti numbers and local cohomology of reflexive modules whose associated filtrations form a hyperplane arrangement. Second, for the non-smooth, simplicial case in dimension d >= 3, we construct new examples of indecomposable maximal Cohen-Macaulay modules of rank d - 1.
description: 39 pages, requires packages ams*, enumerate
Exploring the Iron-Binding Potential of the Ocean Using a Combined pH and DOC Parameterization
Creators: name: Ye, Y.
name: Völker, C.
name: Gledhill, M.
Publisher: name: FID GEO
Year: 2020

description: The major part of dissolved iron (DFe) in seawater is bound to organic matter, which prevents iron from adsorptive removal by sinking particles and essentially regulates the residence time of DFe and its availability for marine biota. Characteristics of iron-binding ligands highly depend on their biological origin and physico-chemical properties of seawater which may intensely alter under ongoing climate change. To understand environmental controls on the iron binding, we applied a function of pH and dissolved organic carbon (DOC) to describe changes in the binding strength of organic ligands in a global biogeochemical model (REcoM). This function was derived based on calculations using a thermodynamic chemical speciation model NICA. This parameterization considerably improved the modeled DFe distribution, particularly in the surface Pacific and the global mesopelagic and deep waters, compared to our previous model simulations with a constant ligand or one prognostic ligand. This indicates that the organic binding of iron is apparently controlled by seawater pH in addition to its link to organic matter. We tested further the response of this control to environmental changes in a simulation with future pH of a high emission scenario. The response of the binding potential shows a complex pattern in different regions and is regulated by factors that have opposite effects on the binding potential. The relative contributions of these factors can change over time by a continual change of environmental conditions. A dynamic feedback system therefore needs to be considered to predict the marine iron cycle under ongoing climate change.
Glacio-hydrological model calibration and evaluation
Creators: name: Van Tiel, Marit
name: Stahl, Kerstin
name: Freudiger, Daphné
name: Seibert, Jan
Publisher: name: FID GEO
Year: 2020

description: Glaciers are essential for downstream water resources. Hydrological modeling is necessary for a better understanding and for future projections of the water resources in these rapidly changing systems, but modeling glacierized catchments is especially challenging. Here we review a wealth of glacio-hydrological modeling studies (145 publications) in catchments around the world. Major model challenges include a high uncertainty in the input data, mainly precipitation, due to scarce observations. Consequently, the risk of wrongly compensating input with model errors in competing snow and ice accumulation and melt process parameterization is particularly high. Modelers have used a range of calibration and validation approaches to address this issue. The review revealed that while a large part (~35%) of the reviewed studies used only streamflow data to evaluate model performances, most studies (~50%) have used additional data related to snow and glaciers to constrain model parameters. These data were employed in a variety of calibration strategies, including stepwise and multi-signal calibration. Although the primary aim of glacio-hydrological modeling studies is to assess future climate change impacts, long-term changes have rarely been taken into account in model performance evaluations. Overall, a more precise description of which data are used how for model evaluation would facilitate the interpretation of the simulation results and their uncertainty, which in turn would support water resources management. Moreover, there is a need for systematic analyses of calibration approaches to disentangle what works best and why. Addressing this need will improve our system understanding and model simulations of glacierized catchments. This article is categorized under: Science of Water > Hydrological Processes Science of Water > Methods
Perfect imaging with geodesic waveguides
Creators: name: Miñano, Juan C.
name: Benítez, Pablo
name: González, Juan C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Transformation optics is used to prove that a spherical waveguide filled with an isotropic material with radial refractive index n=1/r has radial polarized modes (i.e. the electric field has only radial component) with the same perfect focusing properties as the Maxwell Fish-Eye lens. The approximate version of that device using a thin waveguide with a homogenous core paves the way to experimentally prove perfect imaging in the Maxwell Fish Eye lens.
Measurement of the centrality dependence of J/ψ yields and observation of Z production in lead-lead collisions with the ATLAS detector at the LHC
Creators: name: The ATLAS Collaboration
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using the ATLAS detector, a centrality-dependent suppression has been observed in the yield of J/ψ mesons produced in the collisions of lead ions at the Large Hadron Collider. In a sample of minimum-bias lead-lead collisions at a nucleon-nucleon centre of mass energy \surd sNN = 2.76 TeV, corresponding to an integrated luminosity of about 6.7 μb^{-1}, J/ψ mesons are reconstructed via their decays to μ+μ- pairs. The measured J/ψ yield, normalized to the number of binary nucleon-nucleon collisions, is found to significantly decrease from peripheral to central collisions. The centrality dependence is found to be qualitatively similar to the trends observed at previous, lower energy experiments. The same sample is used to reconstruct Z bosons in the μ+μ- final state, and a total of 38 candidates are selected in the mass window of 66 to 116 GeV. The relative Z yields as a function of centrality are also presented, although no conclusion can be inferred about their scaling with the number of binary collisions, because of limited statistics. This analysis provides the first results on J/ψ and Z production in lead-lead collisions at the LHC.
description: Submitted to Physics Letters B
Social rank judgments on Facebook and their emotional consequences as a function of social anxiety
Creators: name: Parsons, Carly A.
Publisher: name: University of British Columbia
Year: 2016

description: Socially anxious individuals are vigilant to social hierarchies, and there is preliminary evidence that they perceive dominant others to be higher in social rank than do those who are not socially anxious. Other research has indicated that socially anxious individuals spend a great deal of time on the Internet, that they prefer to engage in passive activity on social networking sites, and that both of these behaviours confer emotional risks. The current study aimed to connect these research areas by determining whether socially anxious individuals engage in a social rank judgment bias on Facebook and whether this might account for the negative emotional consequences they experience. Two hundred twelve undergraduate students were each presented with 10 randomly selected Facebook profiles of unknown peers and rated each peer on traits related to social rank. They also completed state measures of self-esteem and affect at the beginning and end of the study. Participants with higher trait levels of social anxiety experienced greater decreases in state self-esteem and positive affect after having rated the unknown peers’ profiles. Contrary to expectations, however, these emotional outcomes were not accounted for by a social rank judgment bias, as social anxiety did not predict higher social rank ratings. These results extend previous research by illustrating the emotional impact of online social judgments for socially anxious individuals. The findings are discussed in relation to the literatures on social anxiety, social rank judgments, and social networking site use, and other potential mechanisms of this emotional impact are considered.
Three-Dimensional Flow Above River Bedforms: Insights From Numerical Modeling of a Natural Dune Field (Río Paraná, Argentina)
Creators: name: Lefebvre, Alice
Publisher: name: FID GEO
Year: 2019

description: Bedforms are ubiquitous features in rivers and shallow seas, as mobile sediment is transported by flowing water. The mutual interaction of hydrodynamics and bedform has been widely studied in the laboratory over two-dimensional bedforms having an angle-of-repose (30°) lee side and a relatively simple shape. However, the influence of bedform natural morphology and three-dimensionality on the flow is still poorly constrained. The present work looks at how a natural three-dimensional (3-D) bedform field influences flow properties through high-resolution numerical modeling. A 3-D numerical model is set up with Delft3D and verified against lab experiments of idealized 3-D bedforms. The model is used to simulate water velocities, turbulence, water levels, and bed shear stress above a natural bedform field from the Río Paraná (Argentina). The presence and size of the flow separation zone and turbulent wake depend on the presence and properties of the slip face (defined here as the portion of the lee side with angles >15°) and not on those of the crest. When present, the flow separation and wake lengths are, for the tested settings, respectively, around 5 and 13 times the slip face height. A slip face orientation of 25° or more compared to the flow increases cross-stream flow and suppresses flow reversal over the slip face. To understand and predict flow and bedform properties, the slip face rather than the crest position should be identified and analyzed.
Evolution and obtained expertise in reference point determination at the GIK
Creators: name: Lösler, Michael
name: Eschelbach, Cornelia
Publisher: name: Karlsruhe
Year: 2009

description: The International Terrestrial Reference System (ITRS) is realized by geodetic space techniques, which are linked by local-ties at the observation stations. Therefore, reliability and high accuracy are the main requirements for the determination of the different reference points in the corresponding local reference frame. At the Geodetic Institute of the University of Karlsruhe several scientific studies have been carried out to determine the reference point of radio telescopes at different observation stations and with different calculation models. Starting in 2002 the IVS reference point at Onsala Space Observatory was determined by 3D-circle fits with error propagation using full covariance information, which is custom procedure nowadays. In 2008 a completely new mathematical model was established able to fulfill future requirements as for example minimizing downtime of the telescope. Geodetic measurements with a tacheometer respectively a lasertracker at the Fundamentalstation Wettzell and the Onsala Space Observatory yielded a good verification of the model. 
This contribution shows the evolution and obtained expertise in reference point determination at the Geodetic Institute of the University of Karlsruhe by comparing the results of different campaigns at the Onsala Space Observatory.
Additional file 1 of Renaming COPD exacerbations: the UK respiratory nursing perspective
Creators: name: Mwasuku, Christine
name: King, Joanne
name: Russell, Richard E. K.
name: Bafadhel, Mona
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file1. Word cloud presenting psychological impact of ‘lung attack’ (A); ‘flare up’ (B); and ‘crisis’ (C). Majority of participants gave emotional responses. Generated from: https://www.jasondavies.com/wordcloud/
A blueprint for change? : exploring how the London organizing committee of the Olympic Games (LOCOG) framed Olympic 'sustainability partner' BP
Creators: name: Lawson, Shawna
Publisher: name: University of British Columbia
Year: 2016

description: The London Organizing Committee of the 2012 Olympic and Paralympic Games (LOCOG) came under substantial public scrutiny regarding several of its corporate partnerships (Gibson, 2012; Smedley, 2012). Specifically, a number of resistance groups mobilized around LOCOG’s selection of BP (formerly British Petroleum) as a ‘sustainability partner’. In pledging to host the first ‘truly sustainable Games’, this partnership appeared paradoxical to some, as BP has a history marred by environmental degradation and disaster – most notably the Deep Water Horizon oil spill of 2010 (National Commission, 2011; World Wildlife Foundation, 2007; Mattera, 2010). This thesis critically examines how LOCOG framed the BP-LOCOG relationship – focusing specifically on how the Games’ organizing committee promoted certain interpretations of ‘sustainability’ through this partnership. By examining numerous public relations texts produced by LOCOG, I show how the organizing committee framed BP as not only a ‘key partner’, but also as an ‘expert and motivator’ around sustainability – and suggest that the ‘specialty’ designations awarded to BP facilitated these framings. Further, I argue that a number of explicit and underlying assumptions were revealed in LOCOG’s justifications and framing of this partnership. These include: a) collaboration is a key strategy for dealing with environmental problems, b) innovation comes from business and is a key solution to environmental problems, c) growth and sustainability are compatible, and d) ‘the Games must go on’ despite environmental consequences. I then discuss potential problems with these seemingly innocuous assumptions and framings – concentrating especially on how particular responses to environmental problems are presented as the ‘only’ responses. This thesis concludes with reflections on the study’s contributions to the area of sport mega-events and the environment. Particular attention is paid to the value of studying the public relations strategies of Games’ organizing committees, deconstructing the role of partnerships in the framing of a sustainable Olympics, and investigating the way that consensus around particular responses to environmental issues is sought through responsive PR practices.
Additional file 1 of Preparing a financial incentive program to improve retention in HIV care and viral suppression for scale: using an implementation science framework to evaluate an mHealth system in Tanzania
Creators: name: Packel, Laura
name: Fahey, Carolyn
name: Kalinjila, Atuganile
name: Mnyippembe, Agatha
name: Njau, Prosper
name: McCoy, Sandra I.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 1 : Table 1. HITUES domains and questions as adapted for the mHealth system.
An eigenvalue estimate and its application to non-selfadjoint Jacobi and Schrödinger operators
Creators: name: Hansmann, Marcel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For bounded linear operators $A,B$ on a Hilbert space $\mathcal{H}$ we show the validity of the estimate $$ \sum_{λ\in σ_d (B)} \dist(λ, \overline{\num}(A))^p \leq \| B-A \|_{\mathcal{S}_p}^p$$ and apply it to recover and improve some Lieb-Thirring type inequalities for non-selfadjoint Jacobi and Schrödinger operators.
A stochastic Reputation System Architecture to support the Partner Selection in Virtual Organisations
Creators: name: Haller, Jochen
Publisher: name: Karlsruhe
Year: 2009
Subjects: Trust Management
Reputation Systems
Virtual Organisation
Stochastic Modeling
Bayesian Networks
Multi Agent Simulation

description: In recent business environments, collaborations among organisations raise an increased demand for swift establishment. Such collaborations are increasingly formed without prior experience of the other partner's previous performance. The STochastic REputation system (STORE) is designed to provide swift, automated decision support for selecting partner organisations. STORE is based on a stochastic trust model and evaluated by means of multi agent simulations in Virtual Organisation scenarios.
The Swiss Board Directors Network in 2009
Creators: name: Daolio, Fabio
name: Tomassini, Marco
name: Bitkov, Konstantin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We study the networks formed by the directors of the most important Swiss boards and the boards themselves for the year 2009. The networks are obtained by projection from the original bipartite graph. We highlight a number of important statistical features of those networks such as degree distribution, weight distribution, and several centrality measures as well as their interrelationships. While similar statistics were already known for other board systems, and are comparable here, we have extended the study with a careful investigation of director and board centrality, a k-core analysis, and a simulation of the speed of information propagation and its relationships with the topological aspects of the network such as clustering and link weight and betweenness. The overall picture that emerges is one in which the topological structure of the Swiss board and director networks has evolved in such a way that special actors and links between actors play a fundamental role in the flow of information among distant parts of the network. This is shown in particular by the centrality measures and by the simulation of a simple epidemic process on the directors network.
description: Submitted to The European Physical Journal B
Re-Scaling of Energy in the Stringy Charged Black Hole Solutions using Approximate Symmetries
Creators: name: Sharif, M.
name: Waheed, Saira
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper is devoted to study the energy problem in general relativity using approximate Lie symmetry methods for differential equations. We evaluate second-order approximate symmetries of the geodesic equations for the stringy charged black hole solutions. It is concluded that energy must be re-scaled by some factor in the second-order approximation.
description: 18 pages, accepted for publication in Canadian J. Physics
Additional file 3 of Walking cadence (steps/min) and intensity in 61–85-year-old adults: the CADENCE-Adults study
Creators: name: Tudor-Locke, Catrine
name: Mora-Gonzalez, Jose
name: Ducharme, Scott W.
name: Aguiar, Elroy J.
name: Schuna, John M.
name: Barreira, Tiago V.
name: Moore, Christopher C.
name: Chase, Colleen J.
name: Gould, Zachary R.
name: Amalbert-Birriel, Marcos A.
name: Chipkin, Stuart R.
name: Staudenmayer, John
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 3. Table displaying a classification accuracy analysis for 125 steps/min as a candidate heuristic cadence threshold for 6 METs.
The Second Byurakan Survey Galaxies. I. The Optical Database
Creators: name: Gyulzadyan, M.
name: Mclean, B.
name: Adibekyan, V. Zh.
name: Allen, R. J.
name: Kunth, D.
name: Petrosian, A.
name: Stepanian, J. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A database for the entire catalog of the Second Byurakan Survey (SBS) galaxies is presented. It contains new measurements of their optical parameters and additional information taken from the literature and other databases. The measurements were made using Ipg(near-infrared), Fpg(red) and Jpg(blue) band images from photographic sky survey plates obtained by the Palomar Schmidt telescope and extracted from the STScI Digital Sky Survey (DSS). The database provides accurate coordinates, morphological type, spectral and activity classes, apparent magnitudes and diameters, axial ratios, and position angles, as well as number counts of neighboring objects in a circle of radius 50 kpc. The total number of individual SBS objects in the database is now 1676. The 188 Markarian galaxies which were re-discovered by SBS are not included in this database. We also include redshifts that are now available for 1576 SBS objects, as well as 2MASS infrared magnitudes for 1117 SBS galaxies.
description: 13 pages, 1 figure, 1 table
Additional file 6 of Neurotransmitter-stimulated neuron-derived sEVs have opposite effects on amyloid β-induced neuronal damage
Creators: name: Dou, Yunxiao
name: Xie, Junchao
name: Tan, Yan
name: Zhang, Min
name: Zhao, Yanxin
name: Liu, Xueyuan
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Mental Health

description: Additional file 6: Fig. S6. sEVs with inhibited or over-expressed miR-132 abrogated Glutamate/GABA sEVs induced alterations of apoptotic molecules in Aβ treated neurons, respectively. (A, B) TUNEL- positive rate of neurons in Fig. 6C and D were calculated. (C–J) Neurons were cotreated with glutamate sEVs and miR-132 mimic-loaded sEVs (C, E–G) or GABA sEVs and miR-132 inhibitor-loaded sEVs (D, H–J). 24 h later, neurons were subjected to Aβ treatment for another 48 h. Then, the expression of apoptotic molecules (cleaved Caspase-3, Bax, and Bcl-2). (K, L) The proportion of TUNEL-positive cells in brain slices in Fig. 6E and F was detected. n = 3. Data are presented as the mean ± SEM, *p < 0.05, **p < 0.01, ***p < 0.001.
Free-standing ferroelectric multilayers: Crossover from thin-film to bulk behavior
Creators: name: Prokhorenko, S.
name: Pertsev, N. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ferroelectric films usually have phase states and physical properties very different from those of bulk ferroelectrics. Here we propose free-standing ferroelectric-elastic multilayers as a bridge between these two material systems. Using a nonlinear thermodynamic theory, we determine phase states of such multilayers as a function of temperature, misfit strain, and volume fraction fi of ferroelectric material. The numerical calculations performed for two classical ferroelectrics - PbTiO3 and BaTiO3 - demonstrate that polarization states of multilayers in the limiting cases fi -> 0 and fi -> 1 coincide with those of thin films and bulk crystals. At intermediate volume fractions, however, the misfit strain-temperature phase diagrams of multilayers differ greatly from those of epitaxial films. Remarkably, a ferroelectric phase not existing in thin films and bulk crystals can be stabilized in BaTiO3 multilayers. Owing to additional tunable parameter and reduced clamping, ferroelectric multilayers may be superior for a wide range of device applications.
description: 12 pages, 7 figures
The general gaugings of maximal d=9 supergravity
Creators: name: Fernandez-Melgarejo, JJ
name: Ortin, T.
name: Torrente-Lujan, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the embedding tensor method to construct the most general maximal gauged/massive supergravity in d=9 dimensions and to determine its extended field content. Only the 8 independent deformation parameters (embedding tensor components, mass parameters etc.) identified by Bergshoeff \textit{et al.} (an SL(2,R) triplet, two doublets and a singlet can be consistently introduced in the theory, but their simultaneous use is subject to a number of quadratic constraints. These constraints have to be kept and enforced because they cannot be used to solve some deformation parameters in terms of the rest. The deformation parameters are associated to the possible 8-forms of the theory, and the constraints are associated to the 9-forms, all of them transforming in the conjugate representations. We also give the field strengths and the gauge and supersymmetry transformations for the electric fields in the most general case. We compare these results with the predictions of the E11 approach, finding that the latter predicts one additional doublet of 9-forms, analogously to what happens in N=2, d=4,5,6 theories.
description: Latex file, 43 pages, reference added
Essays on international trade and labor in Indonesia
Creators: name: Liang, Yawen
Publisher: name: University of British Columbia
Year: 2016

description: This dissertation studies the impact of international trade on the Indonesia labor market. The first chapter investigates how task trading induce workers to change jobs. To understand the link between international trade and workers' occupation choices, I propose a general equilibrium model with heterogeneous workers self-selecting into different tasks according to their skill-specific comparative advantage, individual task-specific abilities and task prices. Task outsourcing from foreign countries acts as a demand shock that influences workers' occupation decisions through changing task prices. The model predicts that occupational employments shifts with foreign task demand. I use Indonesian data to estimate this effect. The main finding is that during the post-opening period (2002-2006), growth in mining goods demanded by foreign countries induced workers to move into manual jobs. The second chapter uses the Indonesia plant level data to examine how importing intermediate goods affects the demand for highly educated workers within and across production and non-production occupations categories. We estimate a model of importing and skill-biased technological change in which selection into importing arises due to unobservable heterogenous returns from importing. Both instrumental variable regression and marginal treatment effect estimates confirm that importing has substantially increased the relative demand for educated workers within each occupation. In contrast, we do not consistently estimate a significant impact of importing on the relative demand for non-production workers. The last chapter examines the relationship between trading dynamics of plants and the aggregate skill demand at different margins (reallocation of workers across plants versus the skill composition changes within plants). We find that plants that switched from domestic to trade grew in employment shares. This growth was skill biased for plants that started importing, but not for plants that started exporting. Consequently, the growth in size and increase in the skill intensities of the plants that switched from non-importing to importing increase in the aggregate demand for skilled workers. Plants that stopped importing or exporting laid off workers, more unskilled workers are involved in this reduction. The plants that continue trading grew in size, and the growth was not bias toward workers of any skill type. Given that always-trading plants are most skill intensive, their growth increase the aggregate skill demand.
Effect of External Normal and Parallel Electric Fields on 180^o Ferroelectric Domain Walls in PbTiO_3
Creators: name: Angoshtari, Arzhang
name: Yavari, Arash
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We impose uniform electric fields both parallel and normal to 180^o ferroelectric domain walls in PbTiO_3 and obtain the equilibrium structures using the method of anharmonic lattice statics. In addition to Ti-centered and Pb-centered perfect domain walls, we also consider Ti-centered domain walls with oxygen vacancies. We observe that electric field can increase the thickness of the domain wall considerably. We also observe that increasing the magnitude of electric field we reach a critical electric field E^c; for E > E^c there is no local equilibrium configuration. Therefore, E^c can be considered as an estimate of the threshold field E_h for domain wall motion. Our numerical results show that Oxygen vacancies decrease the value of E^c. As the defective domain walls are thicker than perfect walls, this result is in agreement with the recent experimental observations and continuum calculations that show thicker domain walls have lower threshold fields.
Additional file 4 of Walking cadence (steps/min) and intensity in 61–85-year-old adults: the CADENCE-Adults study
Creators: name: Tudor-Locke, Catrine
name: Mora-Gonzalez, Jose
name: Ducharme, Scott W.
name: Aguiar, Elroy J.
name: Schuna, John M.
name: Barreira, Tiago V.
name: Moore, Christopher C.
name: Chase, Colleen J.
name: Gould, Zachary R.
name: Amalbert-Birriel, Marcos A.
name: Chipkin, Stuart R.
name: Staudenmayer, John
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 4. Graphical representation of classification accuracy of ≥125 steps heuristic cadence thresholds and ≥ 6 METs.
Entscheidbare Fälle des Postschen Korrespondenzproblems
Creators: name: Rahn, Mirko
Publisher: name: Karlsruhe
Year: 2008
Subjects: Unentscheidbarkeit
Postsches Korrespondenzproblem
Koinzidenzmenge
Hochleistungsrechnen

description: Das Postsche Korrespondenzproblem fragt nach nichttrivialen Elementen in der Gleichheitsmenge zweier Morphismen. Es handelt sich um ein unentscheidbares Problem. Wir stellen umfassend und einheitlich dar, welche Möglichkeiten es gibt, Instanzen des Postschen Korrespondenzproblems zu klassifizieren. Wir charakterisieren die Koinzidenzmenge erstmals als rationale Relation. Wir lösen konkrete Instanzen schnell und finden so praktische alle bekannten schwierigen kleinen Instanzen.
title: Inclusive physical literacy development for individuals experiencing disability: exploring the perceptions of physical activity facilitators in disability-specific organizations
Creators: name: Howse, Elizabeth Rachel
Publisher: name: Memorial University of Newfoundland
publisherIdentifier: https://ror.org/04haebc03
publisherIdentifierScheme: ROR
Year: 2024

description: Globally, physical literacy (PL) has gained traction in various physical activity settings through program provision and policy implementation. PL as a concept is inclusive of all, suggesting that everyone possesses the components to capitalize on one’s potential. While PL is theoretically inclusive, its practical application often excludes marginalized groups. Given the discrepancy between PL theory and practice, the purpose of the study was to explore the perspectives of disability-specific physical activity facilitators in providing enriched PL development for individuals experiencing disability (IED). Using an interpretive description methodology, semi-structured interviews were conducted with eight facilitators across Newfoundland. Data was analyzed through interpretive description and thematic analysis, grounded in the ecological dynamics framework, which supports creating environments that encourage lifelong physical activity. Data analysis revealed the perspectives of facilitators regarding the implementation of inclusive PL programming, revealing three themes: (1) Unlocking individual potential; (2) Committed leadership; and (3) Strength in numbers. Results demonstrated that facilitators understood the importance of their role in developing PL for IED, yet recognized that their involvement was only a single piece of the puzzle leading to continuous and positive engagement in PL development.
E, B, μ, T Phase Structure of the D3/D7 Holographic Dual
Creators: name: Evans, Nick
name: Gebauer, Astrid
name: Kim, Keun-Young
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The large N_c N=4 gauge theory with quenched N=2 quark matter displays chiral symmetry breaking in the presence of a magnetic field. We previously studied the temperature and chemical potential phase structure of this theory in the grand canonical ensemble - here we, in addition, include the effect of an electric field which acts to counter chiral symmetry breaking by disassociating mesons. We compute using the gravity dual based on the D3/probe-D7 brane system. The theory displays two transition at one of which chiral symmetry is restored. At the other transition density switches on, the mesons of the theory become unstable and a current forms, making it a conductor-insulator transition. Through the temperature, electric field, chemical potential volume (at fixed magnetic field parallel to the electric field) these transitions can coincide or separate at critical points, and be first order or second order. We map out this full phase structure which provides varied computable examples relevant to strongly coupled gauge theories and potentially condensed matter systems.
description: 20 pages, 7 figures
Additional file 1 of Validity of the ACTS intimate partner violence screen in antenatal care: a cross sectional study
Creators: name: Hegarty, K.
name: Spangaro, J.
name: Kyei-Onanjiri, M.
name: Valpied, J.
name: Walsh, J.
name: Chapman, J.
name: Koziol-McLain, J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1: Figure 1. Receiver Operating Characteristic curves for the ACTS screening tool (binary “Yes/No” and Likert-scale “Frequency” formats). Description of data: Receiver Operating Characteristic curves for the ACTS screening tool when presented as binary “Yes/No” format and Likert-scale “Frequency” format
Propagation and blocking in periodically hostile environments
Creators: name: Guo, Jong-Shenq
name: Hamel, Francois
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the persistence and propagation (or blocking) phenomena for a species in periodically hostile environments. The problem is described by a reaction-diffusion equation with zero Dirichlet boundary condition. We first derive the existence of a minimal nonnegative nontrivial stationary solution and study the large-time behavior of the solution of the initial boundary value problem. To the main goal, we then study a sequence of approximated problems in the whole space with reaction terms which are with very negative growth rates outside the domain under investigation. Finally, for a given unit vector, by using the information of the minimal speeds of approximated problems, we provide a simple geometric condition for the blocking of propagation and we derive the asymptotic behavior of the approximated pulsating travelling fronts. Moreover, for the case of constant diffusion matrix, we provide two conditions for which the limit of approximated minimal speeds is positive.
The discrete Fourier transform of $r$-even functions
Creators: name: Tóth, László
name: Haukkanen, Pentti
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A25, 11L03, 11N37

description: We give a detailed study of the discrete Fourier transform (DFT) of $r$-even arithmetic functions, which form a subspace of the space of $r$-periodic arithmetic functions. We consider the DFT of sequences of $r$-even functions, their mean values and Dirichlet series. Our results generalize properties of the Ramanujan sum. We show that some known properties of $r$-even functions and of the Ramanujan sum can be obtained in a simple manner via the DFT.
description: 15 pages
The model of a flat (Euclidean) expansive homogeneous and isotropic relativistic universe in the light of the general relativity, quantum mechanics, and observations
Creators: name: Skalsky, Vladimir
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Assuming that the relativistic universe is homogeneous and isotropic, we can unambiguously determine its model and physical properties, which correspond with the Einstein general theory of relativity (and with its two special partial solutions: Einstein special theory of relativity and Newton gravitation theory), quantum mechanics, and observations, too.
description: 40 pages, 9 figures, 3 tables