cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Asymptotic analysis for Cahn--Hilliard type phase field systems related to tumor growth in general domains
Creators: name: Kurima, Shunsuke
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: This article considers a limit system by passing to the limit in the following Cahn--Hilliard type phase field system related to tumor growth as $β\searrow0$: \begin{equation*} \begin{cases} α\partial_{t} μ_β + \partial_{t} φ_β-Δμ_β = p(σ_β - μ_β) & \mbox{in}\ Ω\times(0, T), \\[1mm] μ_β = β\partial_{t} φ_β + (-Δ+1)φ_β + ξ_β + π(φ_β),\ ξ_β \in B(φ_β) & \mbox{in}\ Ω\times(0, T), \\[1mm] \partial_{t} σ_β -Δσ_β = -p(σ_β - μ_β) & \mbox{in}\ Ω\times(0, T) \end{cases} \end{equation*} in a bounded or an unbounded domain $Ω\subset \mathbb{R}^{N}$ with smooth bounded boundary. Here $N\in\mathbb{N}$, $T>0$, $α>0$, $β>0$, $p\geq0$, $B$ is a maximal monotone graph and $π$ is a Lipschitz continuous function. In the case that $Ω$ is a bounded domain, $p$ and $-Δ+1$ are replaced with $p(φ_β)$ and $-Δ$, respectively, and $p$ is a Lipschitz continuous function, Colli--Gilardi--Rocca--Sprekels (2017) have proved existence of solutions to the limit problem with this approach by applying the Aubin--Lions lemma for the compact embedding $H^1(Ω) \hookrightarrow L^2(Ω)$ and the continuous embedding $L^2(Ω) \hookrightarrow (H^1(Ω))^{*}$. However, the Aubin--Lions lemma cannot be applied directly when $Ω$ is an unbounded domain. The present work establishes existence of weak solutions to the limit problem both in the case of bounded domains and in the case of unbounded domains. To this end we construct an applicable theory for both of these two cases by noting that the embedding $H^1(Ω) \hookrightarrow L^2(Ω)$ is not compact in the case that $Ω$ is an unbounded domain.
description: arXiv admin note: text overlap with arXiv:1806.06361
On the limitations of cRPA downfolding
Creators: name: Honerkamp, Carsten
name: Shinaoka, Hiroshi
name: Assaad, Fakher F.
name: Werner, Philipp
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We check the accuracy of the constrained random phase approximation (cRPA) downfolding scheme by considering one-dimensional two- and three-orbital Hubbard models with a target band at the Fermi level and one or two screening bands away from the Fermi level. Using numerically exact quantum Monte Carlo simulations of the full and downfolded model we demonstrate that depending on filling the effective interaction in the low-energy theory is either barely screened, or antiscreened, in contrast to the cRPA prediction. This observation is explained by a functional renormalization group analysis which shows that the cRPA contribution to the screening is to a large extent cancelled by other diagrams in the direct particle-hole channel. We comment on the implications of this finding for the ab-initio estimation of interaction parameters in low-energy descriptions of solids.
String Creation and Heterotic-Type I' Duality
Creators: name: Bergman, O.
name: Gaberdiel, M. R.
name: Lifschytz, G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The BPS spectrum of type I' string theory in a generic background is derived using the duality with the nine-dimensional heterotic string theory with Wilson lines. It is shown that the corresponding mass formula has a natural interpretation in terms of type I', and it is demonstrated that the relevant states in type I' preserve supersymmetry. By considering certain BPS states for different Wilson lines an independent confirmation of the string creation phenomenon in the D0-D8 system is found. We also comment on the non-perturbative realization of gauge enhancement in type I', and on the predictions for the quantum mechanics of type I' D0-branes.
description: 24 pages, LaTex, 6 postscript figures
Shear-enhanced elasticity in the cubic blue phase I
Creators: name: Fujii, Shuji
name: Henrich, Oliver
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present results of the linear and non-linear rheology of cubic blue phase I (BPI). The elasticity of BPI is dominated by double-twist cylinders assembled in a body-centered cubic lattice, which can be specified by disclination lines. We find that the elasticity of BPI is enhanced by an order of magnitude by applying pre-shear. The shear-enhanced elasticity is attributed to a rearrangement of the disclination lines that are arrested in a metastable state. Our results are relevant for the understanding of the dynamics of disclinations in cubic blue phases.
description: 12 pages, 8 figures
Профессиональная успешность и профессиональное становление молодого учителя
Creators: name: Невзорова, Анна
Publisher: name: ООО Цифра
Year: 2024
Subjects: professional development
professionalization
specialist's success
attributes of success
профессиональное становление
профессионализация
успешность специалиста
атрибуты успеха

description: Международный научно-исследовательский журнал, Выпуск 1 (139) 2024
Unoriented Open-Closed String Field Theory
Creators: name: Kugo, Taichiro
name: Takahashi, Tomohiko
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The string field theory for unoriented open-closed string mixed system is constructed up to quadratic order based on the joining-splitting type vertices. The gauge invariance with closed string transformation parameter is proved. The infinity cancellation mechanism between disk and projective plane amplitudes plays an essential role for the gauge invariance of the theory.
description: 40 pages, LaTeX with PTPTeX.sty, 19 eps figures
Additional file 1 of Evaluation of Xpert GBS assay and Xpert GBS LB assay for detection of Streptococcus agalactiae
Creators: name: Han, Meng-Yi
name: Xie, Chen
name: Huang, Qing-Qing
name: Wu, Qiao-Hua
name: Deng, Qing-Yun
name: Xie, Tian-Ao
name: Liu, Ye-Ling
name: Li, Zhuo-Lei
name: Zhong, Jing-Hua
name: Wang, Yan-Chao
name: Guo, Xu-Guang
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Flow diagram of study identification and inclusion.
Spin Dependence of Correlations in Two-Dimensional Quantum Heisenberg Antiferromagnets
Creators: name: Elstner, N.
name: Sokol, A.
name: Singh, R. R. P.
name: Greven, M.
name: Birgeneau, R. J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present a series expansion study of spin-S square-lattice Heisenberg antiferromagnets. The numerical data are in excellent agreement with recent neutron scattering measurements. Our key result is that the correlation length for S>1/2 strongly deviates from the exact T->0 (renormalized classical, or RC) scaling prediction for all experimentally and numerically accessible temperatures. We note basic trends with S of the experimental and series expansion correlation length data and propose a scaling crossover scenario to explain them.
description: 5 pages, REVTeX file. PostScript file for the paper with embedded figures available via WWW at http://xxx.lanl.gov/ps/cond-mat/9503143 .
Micromagnetic modeling of Terahertz oscillations in an antiferromagnetic material driven by spin-Hall effect
Creators: name: Puliafito, Vito
name: Khymyn, Roman
name: Carpentieri, Mario
name: Azzerboni, Bruno
name: Tiberkevich, Vasyl
name: Slavin, Andrei
name: Finocchio, Giovanni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The realization of THz sources is a fundamental aspect for a wide range of applications. Over different approaches, compact THz oscillators can be realized taking advantage of dynamics in antiferromagnetic (AFMs) thin films driven by spin-Hall effect. Here we perform a systematic study of these THz oscillators within a full micromagnetic solver based on the numerical solution of two coupled Landau-Lifshitz-Gilbert-Slonczewski equations, for the case of ultra-thin films, i.e. when the Néel temperature of an AFM is substantially reduced. We have found two different dynamical modes depending on the strength of the Dzyaloshinskii-Moriya interaction (DMI). At low DMI, a large amplitude precession is excited where both the magnetizations of the sublattices are in a uniform state and rotate in the same direction. At large enough DMI, the ground state of the AFM becomes non-uniform and the antiferromagnetic dynamics is characterized by ultrafast domain wall motion.
description: manuscript 15 pages 7 figures - supplemental material 3 pages 2 figures
New Variables For Neutrino Oscillation Diagnostics at Superkamiokande and the Sudbury Neutrino Observatory
Creators: name: Majumdar, Debasish
name: Raychaudhuri, Amitava
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The SuperKamiokande collaboration has presented results on the observation of solar neutrinos. The Sudbury Neutrino Observatory (SNO) is also expected to go on-line in the near future. We propose several new variables, insensitive to the absolute flux of the initial solar neutrino beam, which probe the shape of the observed spectrum at these experiments and can sensitively signal neutrino oscillations. One class of such variables involves normalised moments of the distributions recorded at the two facilities while another variable, specific to SNO, depends on the integrated charged and neutral current signals. The utility of these variables in the context of supernova neutrinos, both from the collapse epoch and the post-bounce era, is also emphasised. It is shown that, notwithstanding the imprecise nature of the information about the initial neutrino spectra from a supernova, oscillations can be detected using these variables and it will be possible to distinguish between the alternatives of oscillation to a sequential neutrino {\em vis-a-vis} that to a sterile neutrino.
description: 33 Pages LaTeX, 10 postscript figures
Kinetic equation for nonlinear wave-particle interaction: solution properties and asymptotic dynamics
Creators: name: Artemyev, A. V.
name: Neishtadt, A. I.
name: Vasiliev, A. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We consider a kinetic equation describing evolution of a particle distribution function in a system with nonlinear wave-particle interactions (trappings into a resonance and nonlinear scatterings). We study properties of its solutions and show that the only stationary solution is a constant, and that all solutions with smooth initial conditions tend to constant as time grows. The resulting flattening of the distribution function in the domain of nonlinear interactions is similar to one described by the quasi-linear plasma theory, but the distribution evolves much faster. The results are confirmed numerically for a model problem.
description: 21 pages, 4 figures
Large-Area Scintillator Hodoscope with 50 ps Timing Resolution Onboard BESS
Creators: name: Shikaze, Y.
name: Orito, S.
name: Mitsui, T.
name: Yoshimura, K.
name: Matsumoto, H.
name: Matsunaga, H.
name: Nozaki, M.
name: Sonoda, T.
name: Ueda, I.
name: Yoshida, T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We describe the design and performance of a large-area scintillator hodoscope onboard the BESS rigidity spectrometer; an instrument with an acceptance of 0.3 m^{2}sr. The hodoscope is configured such that 10 and 12 counters are respectively situated in upper and lower layers. Each counter is viewed from its ends by 2.5 inch fine-mesh photomultiplier tubes placed in a stray magnetic field of 0.2 Tesla. Various beam-test data are presented. Use of cosmic-ray muons at ground-level confirmed 50 ps timing resolution for each layer, giving an overall time-of-flight resolution of 70 ps rms using a pure Gaussian resolution function. Comparison with previous measurements on a similar scintillator hodoscope indicates good agreement with the scaling law that timing resolution is proportional to 1/$\sqrt{N_{\rm pe}}$, where $N_{\rm pe}$ is the effective number of photoelectrons.
description: 16 pages, 14 figures
Lecture Notes on Topological Crystalline Insulators
Creators: name: Neupert, Titus
name: Schindler, Frank
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We give an introduction to topological crystalline insulators, that is, gapped ground states of quantum matter that are not adiabatically connected to an atomic limit without breaking symmetries that include spatial transformations, like mirror or rotational symmetries. To deduce the topological properties, we use non-Abelian Wilson loops. We also discuss in detail higher-order topological insulators with hinge and corner states, and in particular present interacting bosonic models for the latter class of systems.
description: Lectures given at the San Sebasti\'an Topological Matter School 2017, published in "Topological Matter. Springer Series in Solid-State Sciences, vol 190. Springer, Cham". v2: errors corrected in section 3.1.2
Unstable massive tau-neutrinos and primordial nucleosynthesis
Creators: name: Dolgov, A. D.
name: Hansen, S. H.
name: Pastor, S.
name: Semikoz, D. V.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The impact of unstable Majorana tau neutrinos on primordial nucleosynthesis is considered. The mass and lifetime of nu_tau are taken in the intervals 0.1-20 MeV and 0.001-400 sec respectively. The studied decay modes are nu_tau -> nu_mu + phi and nu_tau -> nu_e + phi, where phi is a massless (or light) scalar. Integro-differential kinetic equations are solved numerically without any simplifying assumptions. Our results deviate rather strongly from earlier calculations. Depending on mass, lifetime, and decay channels of the nu_tau, the number of effective neutrino species (found from He4), in addition to the 3 standard ones, varies from -2 to +2.5. The abundances of H2 and Li7 are also calculated.
description: 36 pages including 28 figures, minor changes
Additional file 4: of The â Clinicianâ s illusionâ and the epidemiology, diagnosis and treatment of depressive disorders
Creators: name: Patten, Scott
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: An MS Word document providing a more detailed description of how the function used by agents to calibrate to their responses. The analysis used data (Additional file 5) derived from the NetLogo model (Additional file 2) to derive a linear function that allows an agent to select an appropriate threshold to guide their responses to their environment. These agents are depicted in the animations in the manuscript as the middle of the three panels presented in those animations. (PDF 381 kb)
Ground state energy of the modified Nambu-Goto string
Creators: name: Hadasz, Leszek
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate, using zeta function regularization method, semiclassical energy of the Nambu-Goto string supplemented with the boundary, Gauss-Bonnet term in the action and discuss the tachyonic ground state problem.
description: 10 pages, LaTeX, 2 figures
title: Numerical Integration Strategy for Generating Root Migration Diagrams
Creators: name: Panduranga, Deepak H.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2005

description: Evans root locus is a graphical method for analyzing or designing the stability and performance of a single channel closed-loop system. The method consists of plotting the locus of closed-loop characteristic equation roots in the complex plane as the loop gain parameter is varied over a wide range of values. Several methods for plotting the root locus graph exist and can be mainly classified into two types: analytical methods and numerical methods. The most common numerical method is based on polynomial factoring or root solving. A less common, alternative method for generating the root locus graph is based on numerical integration. The objective of this thesis is to investigate numerical integration as a method for constructing root locus diagrams and to compare it with existing methods. The differential relationship for closed-loop pole complex frequency as a function of loop gain is derived and reinterpreted as a complex number, first order state space system appropriate for numerical integration. A fourth order Runge-Kutta integration technique is considered. The loop gain domain space is decomposed into segments according to where the differential relationship exhibits discontinuities. This decomposition and integration is implemented with software and exercised with several academic and real-world test cases. Results indicate construction of root locus diagrams using a numerical integration procedure is a feasible and practical method that can be computationally implemented on a digital computer. The method provides computational efficiency and loci continuity comparable to existing methods. The method does require a set of algorithm tolerances that are problem dependent and must be tuned accordingly for successful application.
Critical point and coexistence curve properties of the Lennard-Jones fluid: A finite-size scaling study
Creators: name: Wilding, Nigel B.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Monte Carlo simulations within the grand canonical ensemble are used to explore the liquid-vapour coexistence curve and critical point properties of the Lennard-Jones fluid. Attention is focused on the joint distribution of density and energy fluctuations at coexistence. In the vicinity of the critical point, this distribution is analysed using mixed-field finite-size scaling techniques aided by histogram reweighting methods. The analysis yields highly accurate estimates of the critical point parameters, as well as exposing the size and character of corrections to scaling. In the sub-critical coexistence region the density distribution is obtained by combining multicanonical simulations with histogram reweighting techniques. It is demonstrated that this procedure permits an efficient and accurate mapping of the coexistence curve, even deep within the two phase region.
description: 9 Pages Revtex. 8 encapsulated ps figures as separate uuencoded, gzipped tar file. To appear in Phys. Rev. E. Full paper also available from http://moses.physik.uni-mainz.de/
Quadratic and Cubic Nodal Lines Stabilized by Crystalline Symmetry
Creators: name: Yu, Zhi-Ming
name: Wu, Weikang
name: Sheng, Xian-Lei
name: Zhao, Y. X.
name: Yang, Shengyuan A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In electronic band structures, nodal lines may arise when two (or more) bands contact and form a one-dimensional manifold of degeneracy in the Brillouin zone. Around a nodal line, the dispersion for the energy difference between the bands is typically linear in any plane transverse to the line. Here, we perform an exhaustive search over all 230 space groups for nodal lines with higher-order dispersions that can be stabilized by crystalline symmetry in solid state systems with spin-orbit coupling and time reversal symmetry. We find that besides conventional linear nodal lines, only lines with quadratic or cubic dispersions are possible, for which the allowed degeneracy cannot be larger than two. We derive effective Hamiltonians to characterize the novel low-energy fermionic excitations for the quadratic and cubic nodal lines, and explicitly construct minimal lattice models to further demonstrate their existence. Their signatures can manifest in a variety of physical properties such as the (joint) density of states, magneto-response, transport behavior, and topological surface states. Using ab-initio calculations, we also identify possible material candidates that realize these exotic nodal lines.
description: 15 pages, 7 figures
Search for antihelium in cosmic rays
Creators: name: AMS Collaboration
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Alpha Magnetic Spectrometer (AMS) was flown on the space shuttle Discovery during flight STS-91 in a 51.7 degree orbit at altitudes between 320 and 390 km. A total of 2.86 * 10^6 helium nuclei were observed in the rigidity range 1 to 140 GV. No antihelium nuclei were detected at any rigidity. An upper limit on the flux ratio of antihelium to helium of < 1.1 * 10^-6 is obtained.
description: 18 pages, Latex, 9 .eps figures
Additional file 1: of Hearing laughter improves the recovery process of the autonomic nervous system after a stress-loading task: a randomized controlled trial
Creators: name: Fujiwara, Yoshiyasu
name: Okamura, Hitoshi
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Table S1. Changes in lnLF and lnLF/HF in each group before and after the intervention. (DOCX 18 kb)
Fully Spin-Polarized Current in Gated Bilayer Silicene
Creators: name: Ouyang, Xiao-Fang
name: Song, Ze-Yi
name: Zhang, Yu-Zhong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By applying density functional theory calculations, we predict that the groundstate of bilayer silicene at certain interlayer distances can be antiferromagnetic. At small electron or hole doping, it becomes half metallic under applied out-of-plane electric field, which can be used to produce fully spin-polarized field-effect-driven current even in the absence of external magnetic field, ferromagnetic substrates, doped magnetic ions, or spin-orbital coupling. Our finding points out a new route to overcome the major challenge of spintronics.
description: 5 pages, 5 figures
Explore nuclear multiple chirality in $A\sim60$ mass region within covariant density functional theory
Creators: name: Peng, J.
name: Chen, Q. B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The nuclear multiple chirality in $A\sim60$ mass region is explored by the adiabatic and configuration-fixed constrained covariant density functional theory for cobalt isotopes. The potential-energy curves and triaxiality parameters $γ$ as functions of the deformation parameter $β$ in $^{54,56,57,58,59,60}$Co are obtained. It is found that there are high-$j$ particle(s) and hole(s) configurations with prominent triaxially deformed shapes in these isotopes. This points towards that the existence of chirality or multiple chirality in $A\sim60$ mass region are highly anticipated.
description: 13 pages, 5 figures, 1 table, accepted by Phys. Rev. C
Testing neutrino instability with active galactic nuclei
Creators: name: Keranen, P.
name: Maalampi, J.
name: Peltoniemi, J. T.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Active galactic nuclei and gamma ray bursts at cosmological distances are sources of high-energy electron and muon neutrinos and provide a unique test bench for neutrino instability. The typical lifetime-to-mass ratio one can reach there is $τ/m\sim 500 Mpc/cE_ν\sim 500$ s/eV. We study the rapid decay channel $ν_i\toν_j+ϕ$, where $ϕ$ is a massless or very light scalar (possibly a Goldstone boson), and point out that one can test the coupling strength of $g_{ij}ν_iν_j$ down to $g_{ij}\lsim 10^{-8} eV/m$ by measuring the relative fluxes of $ν_{e}$, $ν_μ$ and $ν_τ$. This is orders of magnitude more stringent bound than what one can obtain in other phenomena, e.g. in neutrinoless double beta decay with scalar emission.
description: 3 pages
Generalized symmetries and conservation laws of (1+1)-dimensional Klein-Gordon equation
Creators: name: Opanasenko, Stanislav
name: Popovych, Roman O.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37K05, 35L10, 35B06, 35L65

description: Using advantages of nonstandard computational techniques based on the light-cone variables, we explicitly find the algebra of generalized symmetries of the (1+1)-dimensional Klein-Gordon equation. This allows us to describe this algebra in terms of the universal enveloping algebra of the essential Lie invariance algebra of the Klein-Gordon equation. Then we single out variational symmetries of the corresponding Lagrangian and compute the space of local conservation laws of this equation, which turns out to be generated, up to the action of generalized symmetries, by a single first-order conservation law. Moreover, for every conservation law we find a conserved current of minimal order that is contained in this conservation law.
description: 17 pages, minor corrections
Fields, Strings and Branes
Creators: name: Gomez, C.
name: Hernandez, R.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Lecture notes reviewing most recent developments in string/M/brane theory given by C. G. at the CIME Summer International Center of Mathematics at Cetraro. July 1997.
description: Latex file. 176 pages. Six figures
Covariant Symmetry Classifications for Observables of Cosmological Birefringence
Creators: name: Ralston, John P.
name: Jain, Pankaj
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Polarizations of electromagnetic waves from distant galaxies are known to be correlated with the source orientations. These quantities have been used to search for signals of cosmological birefringence. We review and classify transformation properties of the polarization and source orientation observables. The classifications give a firm foundation to certain practices which have sprung up informally in the literature. Transformations under parity play a central role, showing that parity violation in emission or in the subsequent propagation is an observable phenomenon. We also discuss statistical measures, correlations and distributions which transform properly and which can be used for systematic data analysis.
description: 8 pages, revtex, 1 postscript figure
A Note on the Geometry of CHL Heterotic Strings
Creators: name: Lerche, W.
name: Minasian, R.
name: Schweigert, C.
name: Theisen, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a few remarks on disconnected components of the moduli space of heterotic string compactifications on $T_2$. We show in particular how the eight dimensional CHL heterotic string can be understood in terms of topologically non-trivial $E_8\times E_8$ and $\Spin(32)/Z_2$ vector bundles over the torus, and that the respective moduli spaces coincide.
description: 9p, latex2e
title: The Genetic Variation of Peregrine Falcons (Falco peregrinus) in the Chesapeake Bay
Creators: name: Ravinskas, Jennifer
Publisher: name: George Mason University
Year: 2014
Subjects: subject: Chesapeake Bay
subject: Peregrine falcon
subject: Variations
subject: Genetics
subject: FOS: Biological sciences

description: For the last century, the local population of Chesapeake Bay Peregrine falcons (Falco peregrinus) has been fluctuating in its abundance, making genetic diversity difficult to assess (Johnson et al., 2010). Recently, the well-being of falcon populations in Coastal Virginia has improved, and their population numbers have been stabilizing. The extent of the Peregrine falcon genetic variation in the Chesapeake Bay population of falcons is unknown, yet the possibility of a genetic bottleneck does exist. To assess levels of allelic heterozygosity in this population, genetic analyses were performed on blood and feather samples taken from breeding pairs in the Bay during 2007 and 2013. DNA was extracted from these samples then fingerprinted at microsatellite loci with Peregrine falcon specific labeled primers (Nesje 2000b). Fingerprint results were analyzed using the GenAlEx 6.5 software, then observed alleles (AO), expected heterozygosity (HE), observed heterozygosity (HO), and fixation index (FST) were assessed. At each locus studied, there were similarities in HO between contemporary populations of falcons in the Chesapeake Bay and other global reintroduction programs in southern Scandinavia and southern Norway. At locus NVH fp54, observed heterozygosity in the Chesapeake Bay population was dramatically lower than that in the European populations. In the Chesapeake Bay population, FST values were close to zero at each locus, suggesting complete panmixis of this population. The cluster analyses performed with the STRUCTURE 2.3.4 software confirmed that the contemporary populations of Peregrine falcons in the Chesapeake Bay are genotypically one genetic cluster. Comparisons were made between the historic population of Peregrine falcons endemic to the east coast (the Appalachian mountains) and the contemporary population of birds reintroduced to and currently living in the Chesapeake Bay. These comparisons showed no significant difference when levels of observed heterozygosity, expected heterozygosity, and number of alleles were assessed. This suggests that the reintroduced population of peregrines is no more able to cope with anthropogenic or environmental disturbances than their historic counterparts. Known susceptibility of Peregrine falcons to environmental contamination as well as relatively low heterozygosity levels in the contemporary Chesapeake Bay population of Peregrine falcons suggest that continued monitoring and further conservation efforts of this population are warranted.
Orientational Ordering of Polymers on a Fluctuating Flexible Surface
Creators: name: Podgornik, R.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Arguments are presented to the effect that embedding semi-flexible (wormlike) ideal polymers into a fluctuating, flexible surface leads to an effective attractive orientational interaction between polymer segments that precipitates an orientational ordering transition of the polymer chains on the surface even in the case of otherwise ideal (non-interacting) chains. The orientational interaction is analogous to the (zero order) Casimir force and is due to the energy change in surface conformational fluctuations in the presence of embedded semi-flexible chains.
description: LaTeX, 11 pages
Additional file 3: of The “Clinician’s illusion” and the epidemiology, diagnosis and treatment of depressive disorders
Creators: name: Patten, Scott
Publisher: name: figshare
Year: 2018
Subjects: subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
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: Cancer

description: A pdf document providing a description of the NetLogo model. This pdf documents explains how the model works. Another description is available in the model itself (included as Additional file 2) in its “info” tab. (PDF 457 kb)
Protons in near earth orbit
Creators: name: AMS Collaboration
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The proton spectrum in the kinetic energy range 0.1 to 200 GeV was measured by the Alpha Magnetic Spectrometer (AMS) during space shuttle flight STS-91 at an altitude of 380 km. Above the geomagnetic cutoff the observed spectrum is parameterized by a power law. Below the geomagnetic cutoff a substantial second spectrum was observed concentrated at equatorial latitudes with a flux ~ 70 m^-2 sec^-1 sr^-1. Most of these second spectrum protons follow a complicated trajectory and originate from a restricted geographic region.
description: 19 pages, Latex, 7 .eps figures
title: Comparison of Environmental Conditions Surrounding the 2005 and 2006 Atlantic Hurricane Seasons
Creators: name: Clemente, Laura
Publisher: name: George Mason University
Year: 2009
Subjects: subject: Saharan Air Layer
subject: Hurricanes
subject: Dust
subject: 2005 Atlantic Hurricane Season
subject: 2006 Atlantic Hurricane Season

description: The 2005 North Atlantic Hurricane season resulted in 28 named tropical cyclones (TCs), placing this season in the record books as the strongest and most costly Atlantic Hurricane season on record. The 2006 North Atlantic Hurricane season was expected to be almost as strong as the 2005 season, but instead resulted in an average season with 10 named TCs. Numerous factors are involved in the genesis and lifecycle of a TC. This research explores the tropical system as a whole, with the goal of understanding each of the factors that play a role in TC genesis. The objective of this study is to determine if there was a particular variable that played a significant role. This study will pave the way for future research on Hurricane seasons and the potential effects of Saharan dust on the genesis and lifecycle of TCs in the North Atlantic region. To achieve this objective, observations and analysis fields are used to examine environmental factors important to TC behavior, such as sea surface temperature (SST), mid-tropospheric moisture, atmospheric stability, and vertical wind shear. Saharan dust is studied as it has been a topic in recent literature and the role it plays in the tropical system is yet uncertain. The results indicate that warmer waters across the Main Development Region (MDR) along with favorable winds coming off the west of Africa mainly produced active hurricane season in 2005 as compare to 2006. Other environmental factors, such as lower wind shear (changing winds with height), existence of a moist mid-tropospheric layer and moist instability, were also partially the cause of the active 2005 hurricane season. More importantly, the results also indicated that Saharan Air Layer (SAL) interaction with TCs may be another environmental factor that influences TC activity. Therefore, SAL interaction with TCs may be yet another important piece of the puzzle in advancing our understanding of TC activity and intensity change in the Atlantic basin that demands further comprehensive research.
Non-stationary thermal electromotive force generated by third sound
Creators: name: Shevchenko, S. I.
name: Konstantinov, A. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: It is predicted that oscillations of temperature during propagation of third sound in a thin superfluid film cause appearance of an alternating electric field in the surrounding space (a peculiar non-stationary thermoelectric effect). The magnitude of this field depends significantly on the substrate type and the method of its coating. It is shown that the differential thermal EMF (the ratio of electric potential amplitude to the film temperature amplitude) can exceed such one in metals and reach $10^{-4}$ V/K.
СТРОНГИЛОИДОЗ У ЧЕЛОВЕКА
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2024
Subjects: strongyloidiasis
parasite
helminth infestation
contamination
infection
hyperinfection
autoinvasion
стронгилоидоз
паразит
гельминтная инвазия
заражение
инфекция
гиперинфекция
аутоинвазия

description: Международный научно-исследовательский журнал, Выпуск 1 (139) 2024
NuSTAR observations of heavily obscured Swift/BAT AGN: constraints on the Compton-thick AGN fraction
Creators: name: Georgantopoulos, I.
name: Akylas, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The all-sky hard X-ray survey performed by Swift/BAT allowed the detection of many heavily obscured Compton-thick AGN. In our previous work, we have identified more than 50 candidate Compton-thick AGN in the local Universe, corresponding to an observed fraction of about 7% of the total AGN population. This number can be converted to the intrinsic Compton-thick AGN number density, only if we know the form of the Compton-thick AGN spectrum, that is the energy of their absorption turnover, photon-index and its cut-off energy at high energies, as well as the strength of the reflection component on the matter surrounding the nucleus. In order to constrain their number density, we analyse the spectra of 19 Compton-thick AGN which have been detected with Swift/BAT and have been subsequently observed with NuSTAR in the 3-80 keV band. We analyse their X-ray spectra using the MYTORUS models of Murphy and Yaqoob which properly take into account the Compton scattering effects. These are combined with physically motivated Comptonisation models which accurately describe the primary coronal X-ray emission. We derive absorbing column densities which are consistent with those derived by the previous Swift/BAT analyses. We estimate the coronal temperatures to be roughly between 25 and 80 keV corresponding to high energy cut-offs roughly between 75 and 250 keV. We find that the majority of our AGN lacks a strong reflection component in the 20-40 keV band placing tighter constraints on the intrinsic Compton-thick AGN fraction. Combining these results with our X-ray background synthesis models, we estimate a Compton-thick AGN fraction in the local Universe of ~20 +/-3 % relative to the type-II AGN population.
description: Accepted for publication in Astronomy and Astrophysics
Big bang nucleosynthesis limit on N_nu
Creators: name: Lisi, E.
name: Sarkar, Subir
name: Villante, F. L.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently we presented a simple method for determining the correlated uncertainties of the light element abundances expected from big bang nucleosynthesis, which avoids the need for lengthy Monte Carlo simulations. We now extend this approach to consider departures from the Standard Model, in particular to constrain any new light degrees of freedom present in the thermal plasma during nucleosynthesis. Since the observational situation regarding the inferred primordial abundances has not yet stabilized, we present illustrative bounds on the equivalent number of neutrino species N_nu for various combinations of individual abundance determinations. Our 95% C.L. bounds on N_nu range between 2 and 4, and can easily be reevaluated using the technique provided when the abundances are known more accurately.
description: 21 pages (RevTex), incl. 8 figures (epsf); to appear in Phys. ReV. D. Typos corrected; minor change in referencing
ПОСТРОЕНИЕ R*-ДЕРЕВА НА ОСНОВЕ ГЕОМЕТРИЧЕСКИХ ДАННЫХ ИЗ GDSII ФАЙЛА
Creators: name: Гибадуллин, Руслан
Publisher: name: ООО Цифра
Year: 2024
Subjects: GDSII
integrated circuit topology
IC
analysis
algorithm
R*-tree
топология интегральных схем
ИС
анализ
алгоритм
R*-дерево

description: Международный научно-исследовательский журнал, Выпуск 1 (139) 2024
Additional file 1 of Metabonomics profile analysis in inflammation-induced preterm birth and the potential role of metabolites in regulating premature cervical ripening
Creators: name: Yan, Yan
name: Gu, Zhuorong
name: Li, Baihe
name: Guo, Xirong
name: Zhang, Zhongxiao
name: Zhang, Runjie
name: Bian, Zheng
name: Qiu, Jin
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Additional file 1: Supplementary figure. Morphological changes in the cervix and preterm birth. Transvaginal ultra- sonographic image of a normal cervix that was 4.79 cm long and closed at both the internal and external os (left image). The PTB cervix is characterized by cervical dilation/funneling, resulting in a Y-shaped cervix with a length of only 2.13 cm (right image).
The NOvA Power Distribution System
Creators: name: Dukes, E. C.
name: Ehrlich, R.
name: Goadhouse, S.
name: Mualem, L.
name: Norman, A.
name: Tesarek, R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We describe the power distribution systems and grounding schemes built for the near and far detectors of the NOvA long-baseline neutrino experiment. They are used to power the avalanche photodiodes and their thermoelectric coolers, the front-end boards that read out, digitize and time stamp the signals from the avalanche photodiodes, and the data concentrator modules used to receive and format the data from the front-end boards before sending them to a farm of computers used to build the events. The system powers 344,064 readout channels in the far detector and 20,192 channels in the near detector.
Matrix Description of Heterotic Theory on K3
Creators: name: Diaconescu, Duiliu-Emanuel
name: Gomis, Jaume
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Matrix description of certain $E_8\times E_8$ heterotic theories on $T^4/Z_2$ is shown to correspond to the world-volume theory of $Spin(32)/Z_2$ heterotic five-branes on the dual $T^4/Z_2\times S^1$.
description: harvmac, 17 pages, 6 tables, one more reference added
title: GeoData@Mason: Discover and Access to Geospatial Data
Creators: name: Suh, Joy
name: Ding, Elaine
Publisher: name: George Mason University
Year: 2020
Subjects: subject: Gis
subject: Geospatial data
subject: Open data

description: The University Libraries at Mason has developed a new portal that provides discovery and access to geospatial data and digitized historical maps. It allows researchers and students to search and retrieve not only Mason’s own collection but also other institutions’ geospatial data collection. This new portal was built with Open Geospatial Portal (OGP) Application, a multi-institutional open source collaboration for finding and sharing geospatial data. This poster session illustrates the steps taken to develop this portal including infrastructure and skills. It will also address issues related to updating metadata and maintaining the tool for those who consider building this portal in the future.
Характеристика демографических процессов на примере Ханты-Мансийского автономного округа
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2024
Subjects: Khanty-Mansi Autonomous Okrug
total population
total fertility rate
mortality from circulatory diseases
infant mortality
life expectancy
demographic balance
Ханты-Мансийский автономный округ
общая численность населения
суммарный коэффициент рождаемости
смертность от болезней систем кровообращения
младенческая смертность
ожидаемая продолжительность жизни
демографический баланс

description: Международный научно-исследовательский журнал, Выпуск 1 (139) 2024
A New Approach to Background Subtraction in Low-Energy Neutrino Experiments
Creators: name: Wang, Y-F.
name: Miller, L.
name: Gratta, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss a new method to extract neutrino signals in low energy experiments. In this scheme the symmetric nature of most backgrounds allows for direct cancellation from data. The application of this technique to the Palo Verde reactor neutrino oscillation experiment allowed us to reduce the measurement errors on the anti-neutrino flux from $\sim 20$% to $\sim 10$%. We expect this method to substantially improve the data quality in future low background experiments such as KamLAND and LENS.
description: 7 pages, 2 figures
Neutrino Masses in Supersymmetry: R-Parity and Leptogenesis
Creators: name: Ma, Ernest
name: Raidal, Martti
name: Sarkar, Utpal
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the supersymmetric standard model of particle interactions, R-parity nonconservation is often invoked to obtain nonzero neutrino masses. We point out here that such interactions of the supersymmetric particles would erase any pre-existing lepton or baryon asymmetry of the universe before the electroweak phase transition through the $B + L$ violating sphaleron processes. We then show how neutrino masses may be obtained in supersymmetry (assuming R-parity conservation) together with successful leptogenesis and predict the possible existence of new observable particles.
description: LATEX, 12 pages
Theory of a Continuous H$_{c2}$ Normal-to-Superconducting Transition
Creators: name: Radzihovsky, Leo
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: I study the $H_{c2}$ transition within the Ginzburg-Landau model, with $m$-component order parameter $ψ_i$. I find a renormalized fixed point free energy, exact in $m\rightarrow\infty$ limit, suggestive of a $2$nd-order transition in contrast to a general belief of a $1$st-order transition. The thermal fluctuations for $H\neq 0$ force one to consider an infinite set of marginally relevant operators for $d
description: 4 pages, self-unpacking uuencoded compressed postscript file with a figure already inside text; to appear in Phys. Rev. Lett.