cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spacetime-Filling Branes in Ten and Nine Dimensions
Creators: name: Riccioni, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Type-IIB supergravity in ten dimensions admits two consistent $Z_2$ truncations. After the insertion of D9-branes, one of them leads to the low-energy action of type-I string theory, and it can be performed in two different ways, in correspondence with the fact that there are two different consistent ten-dimensional type-I string theories, namely the SO(32) superstring and the $USp(32)$ model, in which supersymmetry is broken on the D9-branes. We derive here the same results for Type-IIA theory compactified on a circle in the presence of D8-branes. We also analyze the $κ$-symmetric action for a brane charged with respect to the S-dual of the RR 10-form of type-IIB, and we find that the tension of such an object has to scale like $g_S^{-2}$ in the string frame. We give an argument to explain why this result is in disagreement with the one obtained using Weyl rescaling of the brane action, and we argue that this brane can only be consistently introduced if the other $Z_2$ truncation of type-IIB is performed. Moreover, we find that one can include a 10-form in type-IIA supersymmetry algebra, and also in this case the corresponding $κ$-symmetric brane has a tension scaling like $g_S^{-2}$ in the string frame.
description: 29 pages, LaTeX file. Refs. added, typos corrected. A comment in the conclusions added. To appear on NPB
Correlation between Fasting Blood Sugar Level and HbA1C Levels in Type 2 Diabetes Mellitus Patients.docx
Creators: name: Bhubanyu Basu
Publisher: name: figshare
Year: 2020
Subjects: subject: 60101 Analytical Biochemistry
subject: FOS: Biological sciences

description:    Introduction: Diabetes Mellitus is one of the most common endocrinal diseases in the world. Incidences of this disease are increasing worldwide and this disease is called disease of this millennium. This study was undertaken to correlate fasting blood sugar level and Glycosylated haemoglobin (HbA1C) level in patients with diabetes mellitus. Material and Methods: This study was a cross sectional study conducted on 100 patients of diabetes mellitus in Kakdwip area, under Bharat Sevasram Sangha. The fasting blood sugar (FBS) levels and HbA1C levels were performed and then correlated fasting blood sugar level . There was a significant positive correlation between FBS and HbA1C. Results: This study demonstrated that HbA1C level was increased in diabetics and it showed correlation with the status of control of diabetes.
Implementation of projective measurements with linear optics and continuous photon counting
Creators: name: Takeoka, Masahiro
name: Sasaki, Masahide
name: van Loock, Peter
name: Lütkenhaus, Norbert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of implementing a given projection measurement using linear optics and arbitrarily fast feedforward based on the continuous detection of photons. In particular, we systematically derive the so-called Dolinar scheme that achieves the minimum error discrimination of binary coherent states. Moreover, we show that the Dolinar-type approach can also be applied to projection measurements in the regime of photonic-qubit signals. Our results demonstrate that for implementing a projection measurement with linear optics, in principle, unit success probability may be approached even without the use of expensive entangled auxiliary states, as they are needed in all known (near-)deterministic linear-optics proposals.
description: 11 pages, 2 figures, updated to the published version
On generalization of Van der Waals approach for isotropic-nematic fluid phase equilibria of anisotropic fluids in disordered porous medium
Creators: name: Holovko, M. F.
name: Shmotolokha, V. I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A generalized Van der Waals approach is developed for anisotropic fluids in disordered porous media. As the reference system a hard spherocylinder fluid in a disordered porous medium is considered and described in the framework of the scaled particle theory with the Carnahan-Starling and Parsons-Lee corrections. The attractive part of interaction is treated in the framework of the mean field approximation in which due to orientational dependence of the excluded volume of two spherocylinders, a coupling between attractive and repulsive contributions is found. We focus on spherocylinder fluids with sufficiently long particle lengths for which the nematic-nematic transition was established. It is shown that these two nematic phases have different densities and are characterized by different orientational ordering. Strong influence of the type of interparticle attraction on the phase behaviour of anisotropic fluids in disordered porous media is established. Three simple models for this purpose are considered, namely a model with the Lennard-Jones anisotropic attraction, a model with modified Lennard-Jones attraction and a model with anisotropic square-well potential. For all considered models, the phase diagram shifts to the region of lower densities and lower temperatures as the porosity decreases.
description: 16 pages, 5 figures
title: Maybe It's Because I'm A Londoner?: A Policy Journey Through The Abolition Of The Inner London Education Authority And The Introduction Of Local Management Of Schools In Inner London
Creators: name: Reynolds, Kate
Publisher: name: The Open University
Year: 1999

description: The measures contained in the 1988 Education Reform Act have transformed the educational landscape of state schooling. This thesis examines two policies contained in the Reform Act, that of the abolition of the Inner London Education Authority and the introduction of local management of schools in inner London from a perspective founded in anti-racist, feminist and social justice approaches. Using case study as a research tool, the thesis builds on an analysis of data collected from a variety of sources. In particular, the thesis uses data collected from interviews with a sample of local government officers, governors, and headteachers in the inner London boroughs, statistical evidence and content analysis of policy documents. The analysis places these two policies within the wider context of the restructuring of the welfare state and the changes in the relationships between national and local government. In particular, it argues that the abolition of the Inner London Education Authority represented the clearest example of the Conservative Government's philosophy to local government, education and schools. Drawing on the analysis from the interviews and documentary evidence, it examines the rationale behind the abolition of ILEA and the introduction of local management in inner London schools. It argues that both the abolition and the introduction of local management of schools were critical to the introduction and implementation of a market in education. Furthermore, it examines the impact of local management on the management of schools with a particular emphasis on issues of gender and 'race' and discusses some of the implications local management has had for developing strategies to address inequalities in education. As a postscript, the thesis identities some of the key elements of local management that are likely to continue under the new Labour Government.
title: Kifufu Integrative School
Creators: name: Gröfler, Paul
name: Schwarz, Michael
Publisher: name: TU Wien
Year: 2017
Subjects: subject: design-build
subject: Schule
subject: Uganda
subject: Entwicklungszusammenarbeit
subject: design-build
subject: school
subject: uganda
subject: development

description: Während Europa sich mit den Bedürfnissen einer zunehmend alternden Gesellschaft konfrontiert sieht, stehen weite Gebiete Afrikas vor einer anderen Herausforderung. Allein in Uganda macht der Anteil der 0-14-jährigen ganze 47.9% der Gesamtbevölkerung aus, an ausreichenden Bildungsangeboten mangelt es jedoch. Der österreichische Verein „Kindern eine Chance“ hat es sich daher zur Aufgabe gemacht, den Kindern in Uganda einen angemessenen Zugang zu Bildung zu ermöglichen. In den vergangenen neun Jahren wurden im Zuge dessen bereits zahlreiche Schulbauten durch den Verein realisiert. Mit einem 2 ha großen Grundstück im Bezirk Mubende bietet sich nun erneut die Gelegenheit, einen Schulcampus für 600 SchülerInnen sowie ein Gebäude zur Betreuung körperlich und geistig beeinträchtigter Kinder zu errichten. Die damit vorliegende Bauaufgabe bildet den Grundstein dieses Diplomprojekts. In enger Zusammenarbeit mit ArbeiterInnen vor Ort soll mit den vorhandenen Ressourcen, unter Berücksichtigung finanzieller und zeitlicher Einschränkungen eine Schule errichtet werden, die den klimatischen sowie bauphysikalischen Ansprüchen angepasst ist. Ohne den funktionalen Anspruch eines Zweckbaus außer Acht zu lassen, besteht hierbei die Chance, durch planerische Überlegungen einen Ort zu schaffen, der den SchülerInnen und Lehrpersonen mit seinen räumlichen Qualitäten neue Perspektiven eröffnet.
description: While european countries are dealing with the needs of a graying society, Africa is facing totally different challenges. Looking at Uganda 47.9% of the population is in between 0-14 years old1. Unfortunately there are not enough existing schools for this children. The organization „Kindern eine Chance“ („chances for children“) is working hard to change this circumstances and fights for more access to education. In the past nine Years the organization has managed to build and run 10 schools and is constantly expanding its network. A new piece of land with the size of 2 hectares now offers the possibility to build another campus for 600 students, that additionally has its own department for physically impaired children, which is an urgent need. This task is topic of this diploma project. The declared goal is to design a school campus which reaches the technical, climatic and constructional needs and also response to the social-needs of the local community. Working together with local craftsmen and workers at the site, gives the chance to learn from one another and create an environment that respects the countries architectural traditions and focus on the function of the building in large scale as well as in detail, to make the „kifufu integrative school“ a place that offers new perspectives to teachers and students.
Probing astrophysical environment with eccentric extreme mass-ratio inspirals
Creators: name: Rahman, Mostafizur
name: Kumar, Shailesh
name: Bhattacharyya, Arpan
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The discovery of gravitational waves and black holes has started a new era of gravitational wave astronomy that allows us to probe the underpinning features of gravity and astrophysics in extreme environments of the universe. In this article, we investigate one such study with an extreme mass-ratio inspiral system where the primary object is a spherically symmetric static black hole immersed in a dark matter halo governed by the Hernquist density distribution. We consider the eccentric equatorial orbital motion of the steller-mass object orbiting around the primary and compute measurable effects. We examine the behaviour of dark matter mass and halo radius in generated gravitational wave fluxes and the evolution of eccentric orbital parameters -- eccentricity and semi-latus rectum. We further provide an estimate of gravitational wave dephasing and find the seminal role of low-frequency detectors in the observational prospects of such an astrophysical environment.
description: 35 pages, 9 figures, 1 table
Quasinormal modes of charged black holes in higher-dimensional Einstein-power-Maxwell theory
Creators: name: Panotopoulos, Grigoris
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the quasinormal frequencies for scalar perturbations of charged black holes in five-dimensional Einstein-power-Maxwell theory. The impact on the spectrum of the electric charge of the black holes, of the angular degree, of the overtone number, and of the mass of the test scalar field is investigated in detail. The quasinormal spectra in the eikonal limit are computed as well for several different space-time dimensionalities.
description: Reference added. It belongs to Axioms' Special Issue: "Theory and Mathematical Aspects of Black Holes". It contains material from arXiv:1711.04146, arXiv:1904.10847, arXiv:1910.08538
Are black holes over-produced during preheating?
Creators: name: Suyama, Teruaki
name: Tanaka, Takahiro
name: Bassett, Bruce
name: Kudoh, Hideaki
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a simple but robust argument that primordial black hole (PBH) production generically does {\em not} exceed astrophysical bounds during the resonant preheating phase after inflation. This conclusion is supported by fully nonlinear lattice simulations of various models in two and three dimensions which include rescattering but neglect metric perturbations. We examine the degree to which preheating amplifies density perturbations at the Hubble scale and show that at the end of the parametric resonance, power spectra are universal, with no memory of the power spectrum at the end of inflation. In addition we show how the probability distribution of density perturbations changes from exponential on very small scales to Gaussian when smoothed over the Hubble scale -- the crucial length for studies of primordial black hole formation -- hence justifying the standard assumption of Gaussianity.
description: 12 pages, 8 figures, revtex, added references for section 1
Two-point AG codes from one of the Skabelund maximal curves
Creators: name: Landi, Leonardo
name: Timpanella, Marco
name: Vicino, Lara
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary: 11G20. Secondary: 11T71, 94B27, 14H50, 14G50

description: In this paper, we investigate two-point Algebraic Geometry codes associated to the Skabelund maximal curve constructed as a cyclic cover of the Suzuki curve. In order to estimate the minimum distance of such codes, we make use of the generalized order bound introduced by P. Beelen and determine certain two-point Weierstrass semigroups of the curve.
description: 15 pages
Large 2HDM(II) one-loop corrections in leptonic tau decays
Creators: name: Krawczyk, M.
name: Temes, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The one-loop contributions to the branching ratios for leptonic tau decays are calculated in the CP conserving 2HDM(II). We found that these one-loop contributions, involving both neutral and charged Higgs bosons, dominate over the tree-level H^+ exchange, the latter one being totally negligible for the decay into electron. The analysis is focused on large tanbeta enhanced contributions to the considered branching ratios. We derive a simple analytical expression for the one-loop contribution which holds in this case. We show that the leptonic branching ratios of tau are complementary to the Higgsstrahlung processes for h(H) and have a large potential on constraining parameters of the model. In this work we provide upper limits on Yukawa couplings for both light h and light A scenarios and we derive new lower limit on mass of M_{H^+} as a function of tanbeta, which differs significantly from what was considered as standard constraint based on the tree-level H^{+} exchange only. Interestingly we obtain also an upper limit on M_{H^+}. For a SM-like h scenario, with heavy and degenerate additional Higgs bosons, one-loop corrections disappear.
description: 25 pgs. Figures and their descriptions improved, references added
Additional file 5 of Effect of serum 25-hydroxyvitamin D level on quadriceps strength: a systematic review and meta-analysis
Creators: name: Ong, Michael Tim-yun
name: Tsang, Kitson Chun-Kit
name: Lu, Victor Yan Zhe
name: Yam, Stacy Lok Sze
name: Shen, Wei
name: Man, Gene Chi-Wai
name: Yung, Patrick Shu-hang
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 5.
title: Deaf Children's Developing Sign Bilingualism: Dimensions Of Language Ability, Use And Awareness
Creators: name: Swanwick, Ruth Anne
Publisher: name: The Open University
Year: 2000

description: The focus of this study is deafchildren's developing bilingualism in British Sign Language and English (sign bilingualism). Sign bilingualism differs from bilingualism in two spoken languages in that the two languages are differently perceived and produced. This thesis explores individual sign bilingualism focusing on ways in which deaf children use their two languages, their perception of the differences between them and the influences that that two languages have on each other. It is argued that deaf children's literacy development might be supported through the development of their tacit metalinguistic skills acquired as a result of constantly moving between their two languages and so reflecting on and comparing the different ways in which BSL and English convey meaning. This study identifies what constitutes metalinguistic ability in bilingual deaf children and explores the extent to which such abilities might support the development of their literacy skills.Because this is a developing area in terms of research and educational practice this study involves an exploratory and creative approach to data collection. Six individual case studies have been carried out with sign bilingual deaf children between 7 and 8 years of age. Information about each child's strategies for moving between BSL and written English has been collected through specifically developed translation and comparative analysis activities From the data collected some of the individual characteristics of sign bilingualism including dimensions of metalinguistic proficiency are described focusing on the individual's skills within, between and across each language domain. The findings reveal dimensions of children's sign bilingualism which support the development of language profiles and assessment procedures in the educational setting and point to new areas of linguistic research. They also illustrate the potential of a focus on metalinguistic abilities for developing approaches to literacy instruction and for providing a framework for further research into deaf children's sign bilingual language development.
Dissipation-driven phase transition in 2D Josephson arrays
Creators: name: Capriotti, Luca
name: Cuccoli, Alessandro
name: Fubini, Andrea
name: Tognetti, Valerio
name: Vaia, Ruggero
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze the interplay of dissipative and quantum effects in the proximity of a quantum phase transition. The prototypical system is a resistively shunted two-dimensional Josephson junction array, studied by means of an advanced Fourier path-integral Monte Carlo algorithm. The reentrant superconducting-to-normal phase transition driven by quantum fluctuations, recently discovered in the limit of infinite shunt resistance, persists for moderate dissipation strength but disappears in the limit of small resistance. For large quantum coupling our numerical results show that, beyond a critical dissipation strength, the superconducting phase is always stabilized at sufficiently low temperature. Our phase diagram explains recent experimental findings.
description: 4 pages, 5 figures
Assessment of interspecies scattering lengths $a_{12}$ from stability of two-component Bose-Einstein condensates
Creators: name: Apagyi, Barnabas
name: Schumayer, Daniel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A stability method is used to assess possible values of interspecies scattering lengths a_12 in two-component Bose-Einstein condensates described within the Gross-Pitaevskii approximation. The technique, based on a recent stability analysis of solitonic excitations in two-component Bose-Einstein condensates, is applied to ninety combinations of atomic alkali pairs with given singlet and triplet intraspecies scattering lengths as input parameters. Results obtained for values of a_12 are in a reasonable agreement with the few ones available in the literature and with those obtained from a Painleve analysis of the coupled Gross-Pitaevskii equations.
description: (8 pages, 4 figures, 3 tables)
WarmSPy: a numerical study of cosmological perturbations in warm inflation
Creators: name: Montefalcone, Gabriele
name: Aragam, Vikas
name: Visinelli, Luca
name: Freese, Katherine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present WarmSPy, a numerical code in Python designed to solve for the perturbations' equations in warm inflation models and compute the corresponding scalar power spectrum at CMB horizon crossing. In models of warm inflation, a radiation bath of temperature $T$ during inflation induces a dissipation (friction) rate of strength $Q \propto T^c/ϕ^m$ in the equation of motion for the inflaton field $ϕ$. While for a temperature-independent dissipation rate ($c=0$) an analytic expression for the scalar power spectrum exists, in the case of a non-zero value for $c$ the set of equations can only be solved numerically. For $c>0$ ($c<0$), the coupling between the perturbations in the inflaton field and radiation induces a growing (decaying) mode in the scalar perturbations, generally parameterized by a multiplicative function $G(Q)$ which we refer to as the scalar dissipation function. Using WarmSPy, we provide an analytic fit for $G(Q)$ for the cases of $c=\{3,1,-1\}$, corresponding to three cases that have been realized in physical models. Compared to previous literature results, our fits are more robust and valid over a broader range of dissipation strengths $Q\in[10^{-7},10^{4}]$. Additionally, for the first time, we numerically assess the stability of the scalar dissipation function against various model parameters, inflationary histories as well as the effects of metric perturbations. As a whole, the results do not depend appreciably on most of the parameters in the analysis, except for the dissipation index $c$, providing evidence for the universal behaviour of the scalar dissipation function $G(Q)$.
description: 37 pages, 8 figures, 1 table, Replacement due to typo on table 1 and figure 2
Performance of closed orbit feedback systems with spatial model mismatch
Creators: name: Mirza, Sajjad Hussain
name: Singh, Rahul
name: Forck, Peter
name: Lorentz, Bernd
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Closed orbit feedback (COFB) systems used for the global orbit correction rely on the pseudo-inversion of the orbit response matrix (ORM). A mismatch between the model ORM used in the controller and the actual machine ORM can affect the performance of the feedback system. In this paper, the typical sources of such model mismatch such as acceleration ramp ORM variation, intensity-dependent tune shift and beta beating are considered in simulation studies. Their effect on the performance and the stability margins are investigated for both the slow and fast regimes of a COFB system operation. The spectral radius stability condition is utilized instead of the small gain theorem to arrive at the theoretical limits of COFB stability and comparisons with simulations for SIS18 of GSI and experiments at the Cooler synchrotron (COSY) in the Forschungzentrum Jülich (FZJ) are also presented.
Additional file 1 of Feasibility of an implementation intervention to increase attendance at diabetic retinopathy screening: protocol for a cluster randomised pilot trial
Creators: name: Riordan, Fiona
name: Racine, Emmy
name: Smith, Susan M.
name: Murphy, Aileen
name: Browne, John
name: Kearney, Patricia M.
name: Bradley, Colin
name: James, Mark
name: Murphy, Mark
name: McHugh, Sheena M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Additional file 1:. The TIDieR (Template for Intervention Description and Replication) Checklist
Additional file 2 of Feasibility of an implementation intervention to increase attendance at diabetic retinopathy screening: protocol for a cluster randomised pilot trial
Creators: name: Riordan, Fiona
name: Racine, Emmy
name: Smith, Susan M.
name: Murphy, Aileen
name: Browne, John
name: Kearney, Patricia M.
name: Bradley, Colin
name: James, Mark
name: Murphy, Mark
name: McHugh, Sheena M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Additional file 2:. Messages delivered as part of the short script. Intervention material
$^3$He Universe 2020
Creators: name: Volovik, G. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The latest news from $^3$He Universe are presented together with the extended map of the Universe.
description: 19 pages, 1 figure, prepared for meeting of Helium Veterans, submitted to J. Low Temp. Phys., modified after referee reports
Developing high-impedance superconducting resonators and on-chip filters for semiconductor quantum dot circuit quantum electrodynamics
Creators: name: Zhang, X.
name: Zhu, Z.
name: Ong, N. P.
name: Petta, J. R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-photon coupling presents an enticing opportunity for the long-range coupling of spin qubits. The spin-photon coupling rate $g_{s}$ is proportional to the charge-photon coupling rate $g_{c}$. To move deeper into the strong coupling regime, $g_{c}$ can be enhanced by fabricating high-impedance cavities using high kinetic inductance films. Here we report dc transport and microwave response investigations of niobium nitride (NbN) films of different thicknesses. The kinetic inductance increases rapidly as the film thickness is reduced below 50 nm and for 15 nm NbN films we measure a sheet kinetic inductance $L_{k,S}$ = 41.2 pH/$\Box$. As an application of the high kinetic inductance films, we fabricate compact LC filters that are commonly used to reduce microwave leakage in circuit quantum electrodynamics (cQED) devices. These filters feature up to 60 dB of attenuation near typical cavity resonance frequencies $f_c$ = 8 GHz.
Spatial and temporal coherence via polarization mutual coherence function
Creators: name: Luis, Alfredo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We address polarization coherence in terms of correlations of Stokes variables. We develop an scalar polarization mutual coherence function that allows us to define a polarization coherence time. We find a suitable spectral polarization density allowing a polarization version of the Wiener-Khintchine theorem. With these tools we also address the polarization version of the van Cittert-Zernike theorem.
description: 8 pages, 2 figures
Leptonic or Hadronic Emission: X-Ray Radiation Mechanism of Large-scale Jet Knots in 3C 273
Creators: name: Wang, Zhen-Jie
name: Zhang, Jin
name: Sun, Xiao-Na
name: Liang, En-Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A comprehensively theoretical analysis on the broadband spectral energy distributions (SEDs) of large-scale jet knots in 3C 273 is presented for revealing their X-ray radiation mechanism. We show that these SEDs cannot be explained with a single electron population model when the Doppler boosting effect is either considered or not. By adding a more energetic electron (the leptonic model) or proton (the hadronic model) population, the SEDs of all knots are well represented. In the leptonic model, the electron population that contributes the X-ray emission is more energetic than the one responsible for the radio-optical emission by almost two orders of magnitude; the derived equipartition magnetic field strengths (B_eq) are ~0.1 mG. In the hadronic model, the protons with energy of ~20 PeV are required to interpret the observed X-rays; the B_eq values are several mG, larger than that in the leptonic model. Based on the fact that no resolved substructures are observed in these knots and the fast cooling-time of the high-energy electrons is difficult to explain the observed X-ray morphologies, we argue that two distinct electron populations accelerated in these knots are unreasonable and their X-ray emission would be attributed to the proton synchrotron radiation accelerated in these knots. In case of these knots have relativistic motion towards the observer, the super-Eddington issue of the hadronic model could be avoided. Multiwavelength polarimetry and the gamma-ray observations with high resolution may be helpful to discriminate these models.
description: 24 pages, 8 figures, 3 tables, accepted for publication in ApJ
Towards the Intersection Theory on Hurwitz Spaces
Creators: name: Kazaryan, M. E.
name: Lando, S. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H30 (Primary) 14C17 (Secondary)

description: Moduli spaces of algebraic curves and closely related to them Hurwitz spaces, that is, spaces of meromorphic functions on the curves, arise naturally in numerous problems of algebraic geometry and mathematical physics, especially in relationship with the string theory and Gromov--Witten invariants. In particular, the classical Hurwitz problem about enumeration of topologically distinct ramified coverings of the sphere with prescribed ramification type reduces to the study of geometry and topology of these spaces. The cohomology rings of such spaces are complicated even in the simplest cases of rational curves and functions. However, the cohomology classes that are the most important from the point of view of applications (namely, the classes Poincaré dual to the strata of functions with given singularities) can be expressed in terms of relatively simple ``basic'' classes (which are, in a sense, tautological). The aim of the present paper is to identify these basic classes, to describe relations among them, and to find expressions for the strata in terms of these classes. Our approach is based on R. Thom's theory of universal polynomials of singularities, which has been extended to the case of multisingularities by the first author. Although the general Hurwitz problem still remains open, our approach allows one to achieve a significant progress in its solution, as well as in the understanding of the geometry and topology of Hurwitz spaces.
description: 29 pages, AMSTeX
Additional file 3 of Feasibility of an implementation intervention to increase attendance at diabetic retinopathy screening: protocol for a cluster randomised pilot trial
Creators: name: Riordan, Fiona
name: Racine, Emmy
name: Smith, Susan M.
name: Murphy, Aileen
name: Browne, John
name: Kearney, Patricia M.
name: Bradley, Colin
name: James, Mark
name: Murphy, Mark
name: McHugh, Sheena M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Additional file 3:. Information leaflet and intervention material
Additional file 1 of Yiqihuoxue decoction (GSC) inhibits mitochondrial fission through the AMPK pathway to ameliorate EPCs senescence and optimize vascular aging transplantation regimens
Creators: name: Liu, Yinan
name: Niu, Zenghui
name: Wang, Xue
name: Xiu, Chengkui
name: Hu, Yanhong
name: Wang, Jiali
name: Lei, Yan
name: Yang, Jing
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 1.
Astrophysical neutrino oscillations after pulsar timing array analyses
Creators: name: Lambiase, Gaetano
name: Mastrototaro, Leonardo
name: Visinelli, Luca
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The pattern of neutrino flavor oscillations could be altered by the influence of noisy perturbations such as those arising from a gravitational wave background (GWB). A stochastic process that is consistent with a GWB has been recently reported by the independent analyses of pulsar timing array (PTA) data sets collected over a decadal timescale by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), the European Pulsar Timing Array (EPTA), the Parkes Pulsar Timing Array (PPTA), and the Chinese Pulsar Timing Array (CPTA) collaborations. We investigate the modifications in the neutrino flavor oscillations under the influence of the GWB reported by the PTA collaborations and we discuss how such effects could be potentially revealed in near-future neutrino detectors, possibly helping the discrimination of different models for the GWB below the nHz frequency range.
description: 6 pages, 3 figures. Matches the version published on Phys. Rev. D
Analytical and finite element solutions for an elastic matrix with two-dimensional nanoscale inhomogeneities
Creators: name: Tian, Lian
Publisher: name: University of British Columbia
Year: 2010

description: A new frontier of research at the interface of material science and mechanics of solids has emerged with the current focus on the development of nanomaterials such as nanotubes, nanowires and nanoparticles. As the dimensions of a structure approach the nanoscale, its properties can be size-dependent. The classical continuum theory, however, does not admit an intrinsic size, and is not applicable to the analysis of nanoscale materials and structures. Mechanics of nanomaterials-based composites can be understood by incorporating the effects of surface and interfacial energy. A fundamental problem in the study of behaviour of such materials is the examination of size-dependent elastic field of an elastic matrix with nanoscale inhomogeneities. Classical inhomogeneity problems have a rich history since the celebrated work of Eshelby. However, the classical solutions cannot be applied to study nanoscale inhomogeneity problems and new solutions accounting for surface/interface energy have to be derived. This thesis therefore presents an analytical scheme and a finite element formulation to study the size-dependent elastic field of an elastic matrix containing two-dimensional nanoscale inhomogeneities. The Gurtin-Murdoch surface/interface elasticity model is applied to incorporate the surface/interface energy effects. By using the complex potential technique of Muskhelishvili, a closed-form analytical solution is obtained for the elastic field of a nanoscale circular inhomogeneity in an infinite matrix under arbitrary remote loading and a uniform eigenstrain. In the case of an elliptical inhomogeneity, the analytic potential functions are obtained approximately. A new finite element formulation that takes into account the surface stress effects is presented. Elastic field is found to depend on the characteristic dimensions of the inhomogeneity, surface elastic constants and surface residual stress. A striking feature of the new solutions is the existence of singular elastic fields below some dimensions of the inhomogeneity. This phenomenon requires careful further investigation. Eshelby tensor of a nanoscale circular inhomogeneity in an infinite matrix due to a uniform eigenstrain is uniform but becomes size-dependent; however, the tensor is size-dependent and non-uniform in the case of an elliptical inhomogeneity.
Field Theory for the Global Density of States Distribution Function in Disordered Conductors
Creators: name: Yudson, V. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A field-theoretical representation is suggested for the electron global density of states distribution function P(ν) in extended disordered conductors. This opens a way to study the complete statistics of fluctuations. The approach is based on a functional integration over bi-local functions Ψ(r_1, r_2) instead of the integration over local functions in the usual functional representation for moments of physical quantities. The formalism allows one to perform the disorder averaging and to derive an analog of the usual nonlinear sigma-model - a "slow" functional of a supermatrix field Q(r; r_1, r_2) \sim Ψ(r, r_1) \circ \barΨ(r_2, r). As an application of the formalism, the long-tail asymptotics of P(ν) is derived.
description: 4 pages
Additional file 1 of The lived experience of co-production: Reflective accounts from the InCLUDE project
Creators: name: Izzidien, Shayma
name: Stemp, Rachael
name: Akram, Sakab
name: Ahmed, Sabbir
name: Rangel-Cristales, Alay
name: Irvine, Karen
name: Sharma, Shivani
name: Midgley, Nick
Publisher: name: figshare
Year: 2024
Subjects: subject: Neuroscience
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file1
A búza-liszt-kenyér termékpálya költség- és jövedelem helyzete 1999-2003 között
Creators: name: Hollósy, Zsolt
name: Hollósy, Zsolt
Publisher: name: Unknown
Year: 2003
Subjects: Demand and Price Analysis
Production Economics

description: A fehér kenyér termelői illetve fogyasztói ára 1999-2003 közti időszakban jelentősen emelkedett. 2004-ben ismét jelentős, mintegy 20-25 Ft/kg-os növekedés várható. A búza áremelkedése miatt hasonló tendencia figyelhető meg a lisztőrlésben is. A búzatermelésben az egy hektárra jutó költségek emelkedése mellett az önköltség 2001-ben csökkent, ez az előző két évhez képest magasabb termésátlaggal magyarázható. 2002-ben és 2003-ban a termésátlag mérséklődése miatt a költség tovább nőtt. A 2003-as év terméscsökkenése, valamint annak a búza-liszt-kenyér vertikum vállalati végtermékeinek árára gyakorolt hatása újra felszínre hozta az ágazat költség és jövedelem helyzetében lévő aránytalanságokat, amit az általános forgalmi adó 2004-es emelkedése csak fokoz. Legjobb helyzetben a kereskedelem volt, legrosszabban a jelentős kapacitásfeleslegekkel üzemelő malomipar, bár a mellékterméknek nagy szerepe van a költségek csökkentésében, illetve a szerény eredmény elérésében. A vizsgált adatbázis sütőipari vállalatai, mint a költségek jelentős viselői, jövedelmi helyzetüket folyamatosan tartották, 2001-ben növelték azt. ----------------- The producers’ and retail prices of white bread have considerably increased from 1999 to 2003. In consequence of the rise in wheat price a further considerable increase of ca. HUF 20-25 per kg white bread can be expected in 2004. There is an analogous trend also in flour milling. In the wheat production the manufacturing cost dropped in 2001 in spite of the increase in cost per hectare, because the average yield was much higher than in the previous two years. However, in both 2002 ands 2003 the average yield dropped again, in consequence of which the price of wheat continued to rise. The yield drop in 2003 and its effect on the producers’ final product prices in the wheat-flour-bread product channel has again brought the disproportions between cost and income in this sector to the surface, to which the increase in VAT will further add in 2004. The situation is best in the commerce and worst in the milling industry that is operating at a considerable surplus of capacity; however, the by-products play a great role in the reduction of prices and the obtaining of at least a modest result. Within the database investigated the companies of the baking industry, being considerable bearers of the costs, have continually improved their position and in 2001 even increased their income.
Additional file 4 of Effect of serum 25-hydroxyvitamin D level on quadriceps strength: a systematic review and meta-analysis
Creators: name: Ong, Michael Tim-yun
name: Tsang, Kitson Chun-Kit
name: Lu, Victor Yan Zhe
name: Yam, Stacy Lok Sze
name: Shen, Wei
name: Man, Gene Chi-Wai
name: Yung, Patrick Shu-hang
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 4.
Constraints on light dark matter particles using white dwarf stars
Creators: name: Panotopoulos, Grigoris
name: Lopes, Ilídio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report constraints on the nucleon-dark matter particle cross section using the internal luminosity of observed white dwarf stars in the globular cluster Messier 4. Our results cover the parameter space corresponding to relatively light dark matter particles, in the mass range $0.1~GeV-5~GeV$, which is known to be very difficult to be probed by direct dark matter searches. The additional luminosity coming from self-annihilations of dark matter particles captured inside the stars must not exceed the observed luminosity. Imposing that condition, we obtain for the spin independent cross section of light dark matter particles on baryons $σ_{Nχ}$ the upper bound: $σ_{Nχ} < 4 \times 10^{-41}{\rm cm^2}$.
description: 11 pages, 2 tables, 2 figures, references added
Experimental and theoretical study of the passively mode-locked Ytterbium-doped double-clad fiber laser
Creators: name: Leblond, Herve
name: Salhi, Mohamed
name: Hideur, Ammar
name: Chartier, Thierry
name: Brunel, Marc
name: Sanchez, Francois
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We consider an Yb-doped double-clad fiber laser in a unidirectional ring cavity containing a polarizer placed between two half-wave plates. Depending on the orientation of the phase plates, the laser operates in continuous, Q-switch, mode-lock or unstable self-pulsing regime. An experimental study of the stability of the mode locking regime is realized versus the orientation of the half-wave plates. A model for the stability of self-mode-locking and cw operation is developed starting from two coupled nonlinear Schrodinger equations in a gain medium. The model is reduced to a master equation in which the coefficients are explicitly dependent on the orientation angles of the phase plates. Analytical solutions are given together with their stability versus the angles.
Additional file 6 of Effect of serum 25-hydroxyvitamin D level on quadriceps strength: a systematic review and meta-analysis
Creators: name: Ong, Michael Tim-yun
name: Tsang, Kitson Chun-Kit
name: Lu, Victor Yan Zhe
name: Yam, Stacy Lok Sze
name: Shen, Wei
name: Man, Gene Chi-Wai
name: Yung, Patrick Shu-hang
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 6.
Mass and tidal parameter extraction from gravitational waves of binary neutron stars mergers using deep learning
Creators: name: Soma, Shriya
name: Stöcker, Horst
name: Zhou, Kai
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gravitational Waves (GWs) from coalescing binaries carry crucial information about their component sources, like mass, spin and tidal effects. This implies that the analysis of GW signals from binary neutron star mergers can offer unique opportunities to extract information about the tidal properties of NSs, thereby adding constraints to the NS equation of state. In this work, we use Deep Learning (DL) techniques to overcome the computational challenges confronted in conventional methods of matched-filtering and Bayesian analyses for signal-detection and parameter-estimation. We devise a DL approach to classify GW signals from binary black hole and binary neutron star mergers. We further employ DL to analyze simulated GWs from binary neutron star merger events for parameter estimation, in particular, the regression of mass and tidal deformability of the component objects. The results presented in this work demonstrate the promising potential of DL techniques in GW analysis, paving the way for further advancement in this rapidly evolving field. The proposed approach is an efficient alternative to explore the wealth of information contained within GW signals of binary neutron star mergers, which can further help constrain the NS EoS.
description: 23 pages, 11 figures
Short-range exchange and correlation energy density functionals: beyond the local density approximation
Creators: name: Toulouse, Julien
name: Colonna, Francois
name: Savin, Andreas
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose approximations which go beyond the local density approximation for the short-range exchange and correlation density functionals appearing in a multi-determinantal extension of the Kohn-Sham scheme. A first approximation consists in defining locally the range of the interaction in the correlation functional. Another approximation, more conventional, is based on a gradient expansion of the short-range exchange-correlation functional. Finally, we also test a short-range generalized-gradient approximation by extending the Perdew-Burke-Ernzerhof exchange-correlation functional to short-range interactions.
description: 11 pages, 13 figures, to be published in J. Chem. Phys