cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact solution of the hydrodynamical Riemann problem with nonzero tangential velocities and the ultrarelativistic equation of state
Creators: name: Mach, Patryk
name: Pietka, Malgorzata
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give a solution of the Riemann problem in relativistic hydrodynamics in the case of ultrarelativistic equation of state and nonvanishing components of the velocity tangent to the initial discontinuity. Simplicity of the ultra-relativistic equation of state (the pressure being directly proportional to the energy density) allows us to express this solution in analytical terms. The result can be used both to construct and test numerical schemes for relativistic Euler equations in (3 + 1) dimensions.
description: Corrections according to the version published in Phys. Rev. E
Genetic predispositions moderate the effectiveness of tobacco excise taxes
Creators: name: Slob, Eric A. W.
name: Rietveld, Cornelius A.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: subject: Research Article
subject: Biology and life sciences
subject: Social sciences
subject: FOS: Social sciences
subject: Medicine and health sciences

description: Background: Tobacco consumption is one of the leading causes of preventable death. In this study, we analyze whether someone’s genetic predisposition to smoking moderates the response to tobacco excise taxes. Methods: We interact polygenic scores for smoking behavior with state-level tobacco excise taxes in longitudinal data (1992-2016) from the US Health and Retirement Study (N = 12,058). Results: Someone’s genetic propensity to smoking moderates the effect of tobacco excise taxes on smoking behavior along the extensive margin (smoking vs. not smoking) and the intensive margin (the amount of tobacco consumed). In our analysis sample, we do not find a significant gene-environment interaction effect on smoking cessation. Conclusions: When tobacco excise taxes are relatively high, those with a high genetic predisposition to smoking are less likely (i) to smoke, and (ii) to smoke heavily. While tobacco excise taxes have been effective in reducing smoking, the gene-environment interaction effects we observe in our sample suggest that policy makers could benefit from taking into account the moderating role of genes in the design of future tobacco control policies.
Scale-free memory model for multiagent reinforcement learning. Mean field approximation and rock-paper-scissors dynamics
Creators: name: Lubashevsky, Ihor
name: Kanemoto, Shigeru
Publisher: name: arXiv
Year: 2009
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A continuous time model for multiagent systems governed by reinforcement learning with scale-free memory is developed. The agents are assumed to act independently of one another in optimizing their choice of possible actions via trial-and-error search. To gain awareness about the action value the agents accumulate in their memory the rewards obtained from taking a specific action at each moment of time. The contribution of the rewards in the past to the agent current perception of action value is described by an integral operator with a power-law kernel. Finally a fractional differential equation governing the system dynamics is obtained. The agents are considered to interact with one another implicitly via the reward of one agent depending on the choice of the other agents. The pairwise interaction model is adopted to describe this effect. As a specific example of systems with non-transitive interactions, a two agent and three agent systems of the rock-paper-scissors type are analyzed in detail, including the stability analysis and numerical simulation. Scale-free memory is demonstrated to cause complex dynamics of the systems at hand. In particular, it is shown that there can be simultaneously two modes of the system instability undergoing subcritical and supercritical bifurcation, with the latter one exhibiting anomalous oscillations with the amplitude and period growing with time. Besides, the instability onset via this supercritical mode may be regarded as "altruism self-organization". For the three agent system the instability dynamics is found to be rather irregular and can be composed of alternate fragments of oscillations different in their properties.
description: 17 pages, 7 figurs
Natural fermion mass hierarchy and mixings in family unification
Creators: name: Dent, James B.
name: Feger, Robert
name: Kephart, Thomas W.
name: Nandi, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an SU(9) model of family unification with three light chiral families, and a natural hierarchy of charged fermion masses and mixings. The existence of singlet right handed neutrions with masses about two orders of magnitude smaller than the GUT scale, as needed to understand the light neutrinos masses via the see-saw mechanism, is compelling in our model.
description: 7 pages, no figure
The Most Effective Items in Dota 2
Creators: name: Hawk.live LLC
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Dota 2
subject: Video games
subject: Video Games

description: Dota 2, one of the most popular esports disciplines worldwide, is constantlyevolving. One of the key elements of the game is the items that players purchasethroughout the match. These items can significantly impact the outcome of thegame by providing various upgrades and abilities.Source: Hawk.live
Hydrostatic pressure study of the structural phase transitions and superconductivity in single crystals of (Ba1-xKx)Fe2As2 (x = 0 and 0.45) and CaFe2As2
Creators: name: Torikachvili, M. S.
name: Budko, S. L.
name: Ni, Ni
name: Canfield, P. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We studied the effect of hydrostatic pressure (P) on the structural phase transitions and superconductivity in the ternary and pseudo-ternary iron arsenides CaFe2As2, BaFe2As2, and (Ba0.55K0.45)Fe2As2, by means of measurements of electrical resistivity (rho) in the 1.8 - 300 K temperature (T) range, pressures up to 20 kbar, and magnetic fields up to 9 T. CaFe2As2 and BaFe2As2 (lightly doped with Sn) display structural phase transitions near 170 K and 85 K, respectively, and do not exhibit superconductivity in ambient pressure, while K-doped (Ba0.55K0.45)Fe2As2 is superconducting for T < 30 K. The effect of pressure on BaFe2As2 is to shift the onset of the crystallographic transformation down in temperature at the rate of about -1.04 K/kbar, while shifting the whole rho(T) curves downward, whereas its effect on superconducting (Ba0.55K0.45)Fe2As2 is to shift the onset of superconductivity to lower temperatures at the rate of about -0.21 K/kbar. The effect of pressure on CaFe2As2 is first to suppress the crystallographic transformation and induce superconductivity with onset near 12 K very rapidly, i.e., for P < 5 kbar. However, higher pressures bring about another phase transformation characterized by reduced resistivity, and the suppression of superconductivity, confining superconductivity to a narrow pressure dome centered near 5 kbar. Upper critical field (Hc2) data in (Ba0.55K0.45)Fe2As2 and CaFe2As2 are discussed.
description: 6 pages - submitted to SCES-08 - Proceedings will appear in Physica B
Diagonal spaces
Creators: name: Beckmann, Philip Valentine
Publisher: name: University of British Columbia
Year: 2011

description: In their monograph 'Quasi-uniform Topological Spaces’, M.G-. Murdeshwar and S.A. Naimpally documented those "uniformity" results which carry over to quasi-uniformities, a quasi-uniformity being a uniformity that lacks the symmetry property. It seemed natural to ask what results might remain true if the "triangle" property of a uniformity were also removed. The investigation of this idea here has resulted in a rather primitive (from a topological point of view) structure called a "diagonal space". Unfortunately, since a topology can not be obtained in the usual way from such a diagonal structure, most of the desirable standard results do not carry over. In Chapter 0 the basic notions that are needed are defined, the most important being that of a filter. Chapter 1 deals with diagonal spaces and the pseudo-topologies that they generate. The latter part of Chapter 1 outlines techniques whereby a pseudo-topology can be "reduced" to a topology. The relationship between diagonal filters and the "pretopologies" of D.C. Kent is discussed in Chapter 2 along with the various relationships between the topologies and generalizations of topolgies that can be defined in a natural way from diagonal spaces and pretopologies. Finally, in Chapter 3, there is a very brief discussion on the analogues, in terms of diagonal spaces and pretopologies, of a few standard concepts of topology.
Torsion as electromagnetism and spin
Creators: name: Poplawski, Nikodem J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show that it is possible to formulate the classical Einstein-Maxwell-Dirac theory of spinors interacting with the gravitational and electromagnetic fields as the Einstein-Cartan-Kibble-Sciama theory with the Ricci scalar of the traceless torsion, describing gravity, and the torsion trace acting as the electromagnetic potential.
description: 6 pages; published version
The Relationship of Job Stress with Marital Satisfaction and Mental Health in Nurses of Tehran Hospitals
Creators: name: Peimanpak, Faezeh
Publisher: name: figshare
Year: 2021
Subjects: subject: 170106 Health, Clinical and Counselling Psychology
subject: FOS: Psychology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Present research is done for the purpose of analysis of the relation among job stress, marital satisfaction and mental health in nurses. Materials and Method The presentresearch is classified in correlation studies. 300 married andemployed nurses of Tehran hospital are selected throughsampling method in the year 2011-2012. The tools of research were job stress questionnaire (NNS), scale of Enrich Marital Satisfaction and mental health questionnaire (GHQ-28). Results The results obtained from analysis of the data showed that there is a significant negative relationship between job stress and marital satisfaction, and also between job stress and mental health of the nurses. Also there is a positive significant relation between marital satisfaction and mental health of the nurses. Furthermore, analysis of the components of job stress showed that, among all components of job stress, the components of contradiction with the physicians and shortage of support sources forecasts the marital satisfaction of nurses. The component of shortage in support sources forecasts the mental health among nurses. Considering the research discoveries, we may draw this conclusion that existence of the elements of job stress includes the contradiction with physicians as the authority of power and the other nurses as the colleagues in the hospital environment, and shortage in support sources in the nursing profession, might increase the reduction of the marital satisfaction and mental health of the nurses.
Poisson splitting by factors
Creators: name: Holroyd, Alexander E.
name: Lyons, Russell
name: Soo, Terry
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Given a homogeneous Poisson process on ${\mathbb{R}}^d$ with intensity $λ$, we prove that it is possible to partition the points into two sets, as a deterministic function of the process, and in an isometry-equivariant way, so that each set of points forms a homogeneous Poisson process, with any given pair of intensities summing to $λ$. In particular, this answers a question of Ball [Electron. Commun. Probab. 10 (2005) 60--69], who proved that in $d=1$, the Poisson points may be similarly partitioned (via a translation-equivariant function) so that one set forms a Poisson process of lower intensity, and asked whether the same is possible for all $d$. We do not know whether it is possible similarly to add points (again chosen as a deterministic function of a Poisson process) to obtain a Poisson process of higher intensity, but we prove that this is not possible under an additional finitariness condition.
description: Published in at http://dx.doi.org/10.1214/11-AOP651 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Propuesta de una guía de auditoría para el SGSI alineada a estándares y mejores prácticas internacionales
Creators: name: Ureña Agüero, Yesenia
Publisher: name: Zenodo
Year: 2020
Subjects: Guía de auditoría
Seguridad de la información
Evaluación del sistema de gestión de la seguridad de la información
ISO/IEC 27001
COBIT 5

description: Actualmente las organizaciones experimentan una creciente dependencia de las tecnologías de información para el logro de sus objetivos y la mejora de sus procesos, por este motivo requieren adherirse a buenas prácticas, estándares, normas y cumplimientos legales o regulatorios, a su vez deben someterse a procesos de evaluación o auditorías que señalen el nivel de cumplimiento de los mismos. Así también, la seguridad de la información es preocupación real en el modelo de negocios actual, especialmente cuando los ciberataques y las brechas de seguridad son noticia diaria. Por tanto, es de interés proponer una guía de auditoría para el sistema de gestión de la seguridad de la información, mediante un modelo práctico de hojas de cálculo, el cual sea adaptable a diferentes entornos organizacionales, alineado a estándares y buenas prácticas internacionales. Se espera que este instrumento operativo favorezca la realización de auditorías parciales o exhaustivas, reduzca el tiempo de las fases de la auditoría y mejore el nivel de aseguramiento de la organización de forma tal que genere valor y resultados positivos.
title: Reachability games and related matrix and word problems
Creators: name: Niskanen, R
Publisher: name: University of Liverpool Repository
Year: 2018

description: In this thesis, we study different two-player zero-sum games, where one player, called Eve, has a reachability objective (i.e., aims to reach a particular configuration) and the other, called Adam, has a safety objective (i.e., aims to avoid the configuration). We study a general class of games, called Attacker-Defender games, where the computational environment can vary from as simple as the integer line to n-dimensional topological braids. Similarly, the moves themselves can be simple vector addition or linear transformations defined by matrices. The main computational problem is to decide whether Eve has a winning strategy to reach the target configuration from the initial configuration, or whether the dual holds, that is, whether Adam can ensure that the target is never reached. The notion of a winning strategy is widely used in game semantics and its existence means that the player can ensure that his or her winning conditions are met, regardless of the actions of the opponent. It general, games provide a powerful framework to model and analyse interactive processes with uncontrollable adversaries. We formulated several Attacker-Defender games played on different mathematical domains with different transformations (moves), and identified classes of games, where the checking for existence of a winning strategy is undecidable. In other classes, where the problem is decidable, we established their computational complexity. In the thesis, we investigate four classes of games where determining the winner is undecidable: word games, where the players' moves are words over a group alphabet together with integer weights or where the moves are pairs of words over group alphabets; matrix games on vectors, where players transform a three-dimensional vector by linear transformations defined by 3×3 integer matrices; braid games, where players braid and unbraid a given braid; and last, but not least, games played on two-dimensional Z-VAS, closing the gap between decidable and undecidable cases and answering an existing open problem of the field. We also identified decidable fragments, such as word games, where the moves are over a single group alphabet, games on one-dimensional Z-VASS. For word games, we provide an upper-bound of EXPTIME , while for games on Z-VASS, tight bounds of EXPTIME-complete or EXPSPACE-complete, depending on the state structure. We also investigate single-player systems such as polynomial iteration and identity problem in matrix semigroups. We show that the reachability problem for polynomial iteration is PSPACE-complete while the identity problem for the Heisenberg group is in PTIME for dimension three and in EXPTIME for higher dimensions.
Additional file 1: of Tetraspanin 1 promotes epithelial-to-mesenchymal transition and metastasis of cholangiocarcinoma via PI3K/AKT signaling
Creators: name: Wang, Yan
name: Liang, Yingjian
name: Yang, Guangchao
name: Lan, Yaliang
name: Han, Jihua
name: Wang, Jiabei
name: Yin, Dalong
name: Song, Ruipeng
name: Zheng, Tongsen
name: Zhang, Shugeng
name: Pan, Shangha
name: Liu, Xirui
name: Zhu, Mingxi
name: Liu, Yao
name: Cui, Yifeng
name: Meng, Fanzheng
name: Zhang, Bo
name: Liang, Shuhang
name: Guo, Hongrui
name: Liu, Yufeng
name: Hassan, Md
name: Liu, Lianxin
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Table S1. Target sequences of vshRNAs used in this study. Table S2. Primary antibodies for WB, IHC, IF and co-IP used in this study. Table S3. Sequence of primers for qRT-PCR. (DOC 86â kb)
The Observed Growth of Massive Galaxy Clusters III: Testing General Relativity on Cosmological Scales
Creators: name: Rapetti, David
name: Allen, Steven W.
name: Mantz, Adam
name: Ebeling, Harald
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This is the third of a series of papers in which we derive simultaneous constraints on cosmological parameters and X-ray scaling relations using observations of the growth of massive, X-ray flux-selected galaxy clusters. Our data set consists of 238 clusters drawn from the ROSAT All-Sky Survey, and incorporates extensive follow-up observations using the Chandra X-ray Observatory. Here we present improved constraints on departures from General Relativity (GR) on cosmological scales, using the growth index, gamma, to parameterize the linear growth rate of cosmic structure. Using the method of Mantz et al. (2009a), we simultaneously and self-consistently model the growth of X-ray luminous clusters and their observable-mass scaling relations, accounting for survey biases, parameter degeneracies and systematic uncertainties. We combine the cluster growth data with gas mass fraction, SNIa, BAO and CMB data. This combination leads to a tight correlation between gamma and sigma_8. Consistency with GR requires gamma~0.55. Under the assumption of self-similar evolution and constant scatter in the scaling relations, and for a flat LCDM model, we measure gamma(sigma_8/0.8)^6.8=0.55+0.13-0.10, with 0.79
description: Accepted for publication in MNRAS. 11 pages, 5 figures, 1 table. New figure added: Fig. 4 shows the tight constraints on gamma from the cluster growth data alone compared with those from the other data sets combined.
Report of colis-batch 6a1657c running colis-language 74e73d5 on Debian sid for amd64, including contrib and non-free, as of October 6, 2019
Creators: name: Jeannerod, Nicolas
Publisher: name: Zenodo
Year: 2020

description: Report of colis-batch 6a1657c running colis-language 74e73d5 on Debian sid for amd64, including contrib and non-free, as of October 6, 2019.
description: Beware: although the archive is ~150M, it contains a directory of ~5G.
title: Vehicle on Shoulder and Crash
title: Correlation or Causation?
titleType: Subtitle
Creators: name: Chen, Mei
name: Zhang, Xu
name: Blandford, Benjamin L.
name: Boasiako, Eugene Antwi
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2020
Subjects: subject: FOS: Civil engineering

description: This study sought to evaluate the relationships between vehicles on shoulder, congestion, and crashes. Three pertinent datasets on interstates were obtained and then integrated using a spatiotemporal approach. The analysis showed that about 36% of the crashes had vehicle on shoulder present in their vicinity, defined as 0.25 miles upstream and downstream of a crash site and 30 minutes before crash occurrence. The percentage increased considerably as spatial/temporal window expanded. In addition, congestion was found to be associated with about 25% of the crashes. The presence of both vehicle on shoulder and congestion was found for 11.7% of the crashes, signifying a high correlation between them and crashes. Based on crash narrative review, 1.8% of all crashes directly involved vehicles on shoulder and 23% of the crashes cited congestion as a contributor. However, there’s little indication in the crash narratives on how vehicles on shoulder contributed to crashes, beyond their direct involvement, or how they contributed to congestion which may led to crashes. Only 6 out of the 512 crashes flagged for review through the keyword search process specified a vehicle on shoulder as a contributor to congestion and subsequent crashes. While a small fraction of crashes were attributed to vehicles on shoulder, these crashes tended to be more severe than average interstate crashes.
description: © 2020 University of Kentucky, Kentucky Transportation Center
УСЛОВИЯ ФОРМИРОВАНИЯ ВЗАИМНОГО СОТРУДНИЧЕСТВА МЕЖДУ СТРАНАМИ ЦЕНТРАЛЬНОАЗИАТСКОГО РЕГИОНА В РАМКАХ ФОРМАТА «ЦЕНТРАЛЬНАЯ АЗИЯ И КИТАЙСКАЯ НАРОДНАЯ РЕСПУБЛИКА»
Creators: name: Умаров, Рустам
Publisher: name: Zenodo
Year: 2023

description: В данной статье анализируются вопросы, связанные с формированием взаимного сотрудничества стран Центральноазиатского региона в рамках формата «Центральная Азия и Китайская Народная Республика».
Differentiation of group-valued outer measures
Creators: name: Traynor, Tim Eden
Publisher: name: University of British Columbia
Year: 2011

description: This thesis is divided into three parts. In Part I, we define and give properties of semigroup valued measures and of the indefinite integral ʃ₍ ₎f‧dµ , where f is a many-valued function (i.e. relation) with values In a group µ is an outer measure with values in another group, and "•" is an operation from the cartesian product of the two groups into a third. In particular, we present a Lebesgue decomposition for group-valued outer measures and show that the indefinite integral is an outer measure. In Part II, we construct the many-valued (outer) derivative D̅ of an outer measure Ʋ with respect to the outer measure µ based on the notion of the limit of "approximate ratios" Ʋ(A) to µ(A) as the set A shrinks to a point. D̅ depends upon the multiplication "•" , upon an auxiliary "remainder" function r , and upon the specification of convergence (formula omitted) of sets in the measure space. Conditions are given under which Ʋ =ʃ₍ ₎D̅‧dµ. We also provide a general Hahn decomposition theorem and discuss generalized types of Vitali differentiation systems. In Part III, we give some applications, including Radón-Nikodym theorems for outer measures Ʋ and µ: firstly, when µ has values in the non-negative reals and Ʋ has values in a locally convex space and secondly, when Ʋ and µ have values in a Banach space.
Additional file 1 of Six immune-related promising biomarkers may promote hepatocellular carcinoma prognosis: a bioinformatics analysis and experimental validation
Creators: name: Lin, Xia-Hui
name: Li, Dong-ping
name: Liu, Zhi-Yong
name: Zhang, Si
name: Tang, Wen-qing
name: Chen, Rong-xin
name: Weng, Shu-qiang
name: Tseng, Yu-jen
name: Xue, Ru-yi
name: Dong, Ling
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mental Health

description: Additional file 1: Figure S1. Quantile normalization of miRNA microarray data (GSE69580) containing five tumors and five normal tissues. Figure S2. Overlapping genes between miRNA (seven upregulated and two downregulated miRNAs) target genes and immune genes from the ImmPort Portal database. Figure S3. The normalization of 393 genes from the TCGA database. Figure S4. (A) Expression levels and (B) overall survival rate of 11 genes obtained from the TCGA database. (*P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001, n.s. not statistically significant). Figure S5. The heatmap of CD320, PSMD14, NTF3, and SORT1 expression in different immune cells. Figure S6. The correlation analyses between (A) miR-21-5p, (B) miR-125b-5p and related methyltransferase genes (DNMT1, DNMT3A, and DNMT3B). Figure S7. (A–D) The calibration analysis of the 4 prognostic nomogram models (CD320, PSMD14, SORT1, and NTF3). Figure S8. (A–D) Immunohistochemistry validation of gene protein expression (CD320, PSMD14, NTF3, and SORT1) from the Human Protein Atlas database. Figure S9. Investigate the 4 hub genes (CD320, PSMD14, SORT1, and NTF3) expression level in the GSE14520 (T = 247; N = 241) (A), GSE76427 (T = 115; N = 52) (B), and TCGA (T = 371; N = 160) (C) expression matrix. (*P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001, n.s. not statistically significant). Figure S10. Prediction of DEIRGs-related drugs. Table S1. Prediction of DEIRGs-related top 10 drugs.
Tube dislocations in gravity
Creators: name: de Berredo-Peixoto, G.
name: Katanaev, M. O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider static massive thin cylindrical shells (tubes) as the sources in Einstein's equations. They correspond to $\dl$- and $\dl'$-function type energy-momentum tensors. The corresponding metric components are found explicitly. They are not continuous functions in general and lead to ambiguous curvature tensor components. Nevertheless all ambiguous terms in Einstein's equations safely cancel. The interplay between elasticity theory, geometric theory of defects, and General Relativity is analyzed. The elasticity theory provides a simple picture for defects creation and a new look on General Relativity.
description: 27 pages, 3 figures
Variant supercurrent multiplets
Creators: name: Kuzenko, Sergei M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In N = 1 rigid supersymmetric theories, there exist three standard realizations of the supercurrent multiplet corresponding to the (i) old minimal, (ii) new minimal and (iii) non-minimal off-shell formulations for N = 1 supergravity. Recently, Komargodski and Seiberg in arXiv:1002.2228 put forward a new supercurrent and proved its consistency, although in the past it was believed not to exist. In this paper, three new variant supercurrent multiplets are proposed. Implications for supergravity-matter systems are discussed.
description: 11 pages; V2: minor changes in sect. 3; V3: published version; V4: typos in eq. (2.3) corrected; V5: comments and references added
Feasibility of measuring the Shapiro time delay over meter-scale distances
Creators: name: Ballmer, S.
name: Márka, S.
name: Shawhan, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The time delay of light as it passes by a massive object, first calculated by Shapiro in 1964, is a hallmark of the curvature of space-time. To date, all measurements of the Shapiro time delay have been made over solar-system distance scales. We show that the new generation of kilometer-scale laser interferometers being constructed as gravitational wave detectors, in particular Advanced LIGO, will in principle be sensitive enough to measure variations in the Shapiro time delay produced by a suitably designed rotating object placed near the laser beam. We show that such an apparatus is feasible (though not easy) to construct, present an example design, and calculate the signal that would be detectable by Advanced LIGO. This offers the first opportunity to measure space-time curvature effects on a laboratory distance scale.
description: 13 pages, 6 figures; v3 has updated instrumental noise curves plus a few text edits; resubmitted to Classical and Quantum Gravity
Bloch oscillations in lattice potentials with controlled aperiodicity
Creators: name: Walter, Stefan
name: Schneble, Dominik
name: Durst, Adam C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We numerically investigate the damping of Bloch oscillations in a one-dimensional lattice potential whose translational symmetry is broken in a systematic manner, either by making the potential bichromatic or by introducing scatterers at distinct lattice sites. We find that the damping strongly depends on the ratio of lattice constants in the bichromatic potential, and that even a small concentration of scatterers can lead to strong damping. Moreover, mean-field interactions are able to counteract aperiodicity-induced damping of Bloch oscillations.
description: 9 pages, 6 figures
Factorial algebraic group actions and categorical quotients
Creators: name: Arzhantsev, I. V.
name: Celik, D.
name: Hausen, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L24, 14L30

description: Given an action of an affine algebraic group with only trivial characters on a factorial variety, we ask for categorical quotients. We characterize existence in the category of algebraic varieties. Moreover, allowing constructible sets as quotients, we obtain a more general existence result which, for example, settles the case of a finitely generated algebra of invariants. As an application, we provide a combinatorial GIT-type construction of categorial quotients for actions on, e.g. complete varieties with finitely generated Cox ring via lifting to the characteristic space.
description: new result added, 12 pages
Mass-losing accretion discs around supermassive black holes
Creators: name: Khajenabi, Fazeleh
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the effects of outflow/wind on the gravitational stability of accretion discs around supermassive black holes using a set of analytical steady-state solutions. Mass-loss rate by the outflow from the disc is assumed to be a power-law of the radial distance and the amount of the energy and the angular momentum which are carried away by the wind are parameterized phenomenologically. We show that the mass of the first clumps at the self-gravitating radius linearly decreases with the total mass-loss rate of the outflow. Except for the case of small viscosity and high accretion rate, generally, the self-gravitating radius increases as the amount of mass-loss by the outflow increases. Our solutions show that as more angular momentum is lost by the outflow, then reduction to the mass of the first clumps is more significant.
description: Accepted for publication in Astrophysics & Space Science
The Stabilization of Superconductivity by Magnetic Field in Out-of-Equilibrium Nanowires
Creators: name: Chen, Yu
name: Lin, Yen-Hsiang
name: Snyder, S. D.
name: Goldman, A. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A systematic study has been carried out on the previously reported "magnetic-field-induced superconductivity" of Zn nanowires. By varying parameters such as magnetic field orientation and wire length, the results provide evidence that the phenomenon is a nonequilibrium effect associated with the boundary electrodes. They also suggest there are two length scales involved, the superconducting coherence length and quasiparticle relaxation length. As wire lengths approach either of these length scales, the effect weakens. We demonstrate that it is appropriate to consider the effect to be a stabilization of superconductivity, that has been suppressed by an applied current.
description: (Updated Version) 9 pages, 8 figures
Self-consistent calculation of electric potentials in Hall devices
Creators: name: Kramer, Tobias
name: Krueckl, Viktor
name: Heller, Eric J.
name: Parrott, Robert E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a first-principles classical many-body simulation of a Hall bar, we study the necessary conditions for the formation of the Hall potential: (i) Ohmic contacts with metallic reservoirs, (ii) electron-electron interactions, and (iii) confinement to a finite system. By propagating thousands of interacting electrons over million time-steps we capture the build-up of the self-consistent potential, which resembles results obtained by conformal-mapping methods. As shown by a microscopic model of the current injection, the Hall effect is linked to specific boundary conditions at the particle reservoirs.
description: 6 pages, 7 figures
Caching in Wireless Networks
Creators: name: Niesen, Urs
name: Shah, Devavrat
name: Wornell, Gregory
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the problem of delivering content cached in a wireless network of n nodes randomly located on a square of area n. The network performance is described by the n2^n-dimensional caching capacity region of the wireless network. We provide an inner bound on this caching capacity region, and, in the high path-loss regime, a matching (in the scaling sense) outer bound. For large path-loss exponent, this provides an information-theoretic scaling characterization of the entire caching capacity region. The proposed communication scheme achieving the inner bound shows that the problems of cache selection and channel coding can be solved separately without loss of order-optimality. On the other hand, our results show that the common architecture of nearest-neighbor cache selection can be arbitrarily bad, implying that cache selection and load balancing need to be performed jointly.
description: 28 pages, to appear in IEEE Transactions on Information Theory
Resonantly suppressed transmission and anomalously enhanced light absorption in ultrathin metal films
Creators: name: Spevak, I. S.
name: Nikitin, A. Yu.
name: Bezuglyi, E. V.
name: Levchenko, A.
name: Kats, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study light diffraction in the periodically modulated ultrathin metal films both analytically and numerically. Without modulation these films are almost transparent. The periodicity results in the anomalous effects, such as suppression of the transmittance accompanied by a strong enhancement of the absorptivity and specular reflectivity, due to excitation of the surface plasmon polaritons. These phenomena are opposite to the widely known enhanced transparency of periodically modulated optically thick metal films. Our theoretical analysis can be a starting point for the experimental investigation of these intriguing phenomena.
description: 4 pages, 5 figures
Constraints on the Unhiggs Model from Top Quark Decay
Creators: name: Stancato, David
name: Terning, John
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the top quark decay rate in the Unhiggs model. In this model, the longitudinally polarized W's are unparticles, owing to their Goldstone boson nature, while the transversely polarized W's are not. Thus the fraction of decays with a longitudinal W emitted is different than in the Standard Model. Comparing this calculation to CDF data, we are able to rule out some of the Unhiggs model parameter space. We also use the expected increased accuracy of top decay measurements at the LHC to anticipate further constraints on the Unhiggs.
description: 10 pages, 1 figure; References added, further discussion included; Version accepted for publication in Physical Review D
Families over special base manifolds and a conjecture of Campana
Creators: name: Jabbusch, Kelly
name: Kebekus, Stefan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14D20, 14D06

description: Consider a smooth, projective family of canonically polarized varieties over a smooth, quasi-projective base manifold Y, all defined over the complex numbers. It has been conjectured that the family is necessarily isotrivial if Y is special in the sense of Campana. We prove the conjecture when Y is a surface or threefold. The proof uses sheaves of symmetric differentials associated to fractional boundary divisors on log canonical spaces, as introduced by Campana in his theory of Orbifoldes Geometriques. We discuss a weak variant of the Harder-Narasimhan Filtration and prove a version of the Bogomolov-Sommese Vanishing Theorem that take the additional fractional positivity along the boundary into account. A brief, but self-contained introduction to Campana's theory is included for the reader's convenience.
description: Final version, to appear in Math. Zeitschrift
The Metric Dimension of Wheel Graph Wn & Partition Dimension of Graph Ks + Kt
Creators: name: Alova, Chard Aye Reyes
name: Dito, Samuel Benny
name: Sherryn, Kezya Samantha
name: Adliya, Difa Winanda
name: Dhiya, Moch Nabil Farras
Publisher: name: figshare
Year: 2021
Subjects: subject: 10199 Pure Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 80202 Applied Discrete Mathematics
subject: FOS: Computer and information sciences
subject: 10104 Combinatorics and Discrete Mathematics (excl. Physical Combinatorics)

description: In this paper, we determine and show the proof of the metric dimension of a wheel graph and the partition dimension of graph F = Ks + Kt. The solution for the metric dimension is divided into four cases. If n = 3 or 6, the metric dimension of wheel graph Wn is 3. If n = 4 or 5, the metric dimension of wheel graph Wn is 2. If n = 7 or 8, the metric dimension of wheel graph Wn+5k is 3 + 2k for k is a whole number. If n = 9, 10, or 11, the metric dimension of wheel graph Wn+5k is 4 + 2k for k is a whole number. The solution for the partition dimension is divided into two cases. If s ≥ t, the partition dimension of graph F is s + 1. If s < t, the partition dimension of graph F is t.
Holographic dark energy in a non-flat universe with Granda-Oliveros cut-off
Creators: name: Karami, K.
name: Fehri, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by Granda and Oliveros (GO) model, we generalize their work to the non-flat case. We obtain the evolution of the dark energy density, the deceleration and the equation of state parameters for the holographic dark energy model in a non-flat universe with GO cut-off. In the limiting case of a flat universe, i.e. $k = 0$, all results given in GO model are obtained.
description: 11 pages, 5 figures
Возобновляемые источники энергии: перспективы развития
Creators: name: Кутафина Н.Н.
Publisher: name: Право и управление
Year: 2021
Subjects: источник энергии
возобновляемая энергия
гидроэлектростанция
государство
углеводороды
технологии.

description: В России вопросам возобновляемой энергетики не уделялось должного внимания. Причинами для этого являются большие запасы углеводородов, дороговизна оборудование для генерации энергии из возобновляемых источников энергии, недостаточная поддержка проектов с использованием возобновляемых источников энергии на уровне государства. Однако участие России в мировом развитии прогрессивных технологий заставило обратить внимание на эти проблемы. Основными объектами, генерирующими энергию из возобновляемых источников энергии, являются средние и малые гидроэлектростанции.
Германия и Россия: общность негативного экономического опыта и перспективы защиты права собственности
Creators: name: Москаленко А.И.
Publisher: name: Право и управление
Year: 2021
Subjects: собственность
право
законодательство
кодекс
вещное право
государство
Германия
Россия
защита
опыт
экономика
рынок.

description: В статье обосновывается актуальность и целесообразность сравнительно-правовых исследований процессов регулирования отношений собственности в Российской Федерации и Федеративной Республике Германии.
Гражданское право как отрасль российского права
Creators: name: Пархоменко А.Г.
Publisher: name: Право и управление
Year: 2021
Subjects: гражданское право
частное право
публичное право
семейное право
отрасль права
имущественные отношения.

description: Гражданское право в отечественной правовой системе является основной отраслью частного права. Наряду с ним в систему частного права в нашей стране входит семейное право и международное частное право. Элементы частного права имеются также в трудовом праве (трудовые договоры-контракты), земельном праве и в некоторых других отраслях. В развитой правовой системе существуют и различаются системы частного права и публичного права. Разграничение частного и публичного права основывается на том, что же является первоочередным в регулировании общественных отношений: защита публичных интересов или защита интересов частных лиц. Различие частного и публичного права заключается также в характере и способах воздействия права на регулируемые отношения.
On the topologies of the same class of homeomorphisms
Creators: name: Shiau, Chyi
Publisher: name: University of British Columbia
Year: 2011

description: Given a topological space (X,Ʊ), let H(X,Ʊ), be the class of all homeomorphisms of (XƱ ) onto itself. This paper is devoted to study the following problem posed by Everett and Ulam [1], [11] in 1948. When and how a new topology Ʋ can be constructed on X such that H(X,Ʊ) = H(X,Ʋ), i.e., these two topological spaces have exactly the same class of homeomorphisms. Some of the results obtained are original, and other results agree essentially with the work done previously by Yu-Lee Lee [5], [6], [7], [8], [9].
Deformation of Dyonic Black Holes and Vacuum Geometries in Four Dimensional N=1 Supergravity
Creators: name: Gunara, Bobby Eka
name: Zen, Freddy Permana
name: Arianto
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study some aspects of spherical symmetric dyonic non-supersymmetric black holes in $4d \; N=1$ supergravity coupled to chiral and vector multiplets on Kähler-Ricci solitons. Then, we have a family of dyonic non-supersymmetric black holes deformed with respect to the flow parameter related to the Kähler-Ricci soliton, which possibly controls the nature of black holes, such as their asymptotic and near horizon geometries. Two types of black holes are discussed, namely a family of dyonic Reissner-Nordström-like black holes and Bertotti-Robinson-like black holes where the scalars are freezing all over spacetime and at the horizon, respectively. In addition, the corresponding vacuum structures for such black holes are also studied in the context of Morse-(Bott) theory. Finally, we give some simple $\;{\lC \mathrm{P}}^n$-models whose superpotential and gauge couplings have a linear form.
description: shortened version, 9 pages, removed some trivial results, no figure, typos and incorrect statements corrected, accepted in Adv. Stud. Theor. Phys
Dust Settling in Magnetorotationally-Driven Turbulent Discs I: Numerical Methods and Evidence for a Vigorous Streaming Instability
Creators: name: Balsara, Dinshaw S.
name: Tilley, David A.
name: Rettig, Terrence
name: Brittain, Sean A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) In this paper we have used the RIEMANN code for computational astrophysics to study the interaction of a realistic distribution of dust grains with gas in a vertically stratified protostellar accretion disc. The disc was modeled to have the density and temperature of a minimum mass solar nebula, and was driven to a fully-developed turbulence via the magnetorotational instability (MRI). We find that the inclusion of standard dust to gas ratios does not have any significant effect on the MRI even when the dust sediments to the midplane of the accretion disc. The density distribution of the dust reaches a Gaussian profile, and the scale heights for the dust that we derive are shown to be proportional to the reciprocal of the square root of the dust radius. The largest dust shows a strong tendency to settle to the midplane of the accretion disc, and tends to organize itself into elongated clumps of high density. The dynamics of these clumps is shown to be consistent with a streaming instability. The streaming instability is seen to be very vigorous and persistent once it forms. Each stream of high density dust displays a reduced RMS velocity dispersion, and the densest clumpings of large dust are shown to form where the streams intersect. We have also shown that the mean free path and collision time for the dust that participates in the streaming instability is reduced by almost two orders of magnitude relative to the average mean free paths and collision times. We show that some of the large dust in our 10 au simulations should have a propensity for grain coalescence.
description: 44 pages, 12 figures, submitted to MNRAS
Исторический анализ полномочий органов местного самоуправления в сфере местных налогов и сборов в России
Creators: name: Янишевская Я.А.
Publisher: name: Право и управление
Year: 2021
Subjects: основы муниципального права
местные налоги и сборы
исторические традиции России
соотношение государственной власти и местного самоуправления.

description: Принципы муниципального права пронизывают все правовые нормы, являются стержнем всей системы источников местного самоуправления и институтов муниципального права. Отсюда следует их определяющее значение для регулирования муниципальных общественных отношений, юридической практики. Строгое и точное осуществление требований права означает одновременно и последовательное воплощение в жизнь заложенных в нем принципов.