cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Intersection homology and Poincaré duality on homotopically stratified spaces
Creators: name: Friedman, Greg
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55N33, 57N80, 57P99

description: We show that intersection homology extends Poincare duality to manifold homotopically stratified spaces (satisfying mild restrictions). This includes showing that, on such spaces, the sheaf of singular intersection chains is quasi-isomorphic to the Deligne sheaf.
description: Generalized duality results to hold over principal ideal domains assuming local Goresky-Siegel type torsion conditions. Also added a section on what properties are necessary for duality to hold over ground rings of higher homological dimension
EXPLORATORY AND CONFIRMATORY FACTOR ANALYSIS OF COLLABORATION NETWORK TO PROMOTE THE UNDERPRIVILEGED GROUPS IN ACCESSIBILITY AND UTILIZATION OF BROADCASTING AND TELECOMMUNICATION INFORMATION
Creators: name: POOMPAT PALAKARN
name: GAMOLPORN SONSRI
Publisher: name: Zenodo
Year: 2023
Subjects: Collaboration Network, Underprivileged Groups, Accessibility, and Utilization.

description: Abstract

The objectives of this study were 1) to examine the elements of collaboration networks that promote accessibility and utilization of broadcasting and telecommunication information among underprivileged groups and 2) to analyze both exploratory and confirmatory elements of collaboration networks. A mixed-method approach was employed, combining qualitative tools such as interviews and focus groups, with a quantitative tool in the form of a questionnaire. Data analysis involved content analysis, exploratory factor analysis, and confirmatory factor analysis. The study revealed that the established collaboration network model was suitable for the empirical data (sig. = 0.102). Moreover, a significant indicator for a successful collaboration network comprised 7 components, further divided into 24 observed variables. These variables can be utilized to create 8 practical models.
Consistent Computation of First- and Second-Order Differential Quantities for Surface Meshes
Creators: name: Jiao, Xiangmin
name: Zha, Hongyuan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 65D25; 65D17; 65D18

description: Differential quantities, including normals, curvatures, principal directions, and associated matrices, play a fundamental role in geometric processing and physics-based modeling. Computing these differential quantities consistently on surface meshes is important and challenging, and some existing methods often produce inconsistent results and require ad hoc fixes. In this paper, we show that the computation of the gradient and Hessian of a height function provides the foundation for consistently computing the differential quantities. We derive simple, explicit formulas for the transformations between the first- and second-order differential quantities (i.e., normal vector and principal curvature tensor) of a smooth surface and the first- and second-order derivatives (i.e., gradient and Hessian) of its corresponding height function. We then investigate a general, flexible numerical framework to estimate the derivatives of the height function based on local polynomial fittings formulated as weighted least squares approximations. We also propose an iterative fitting scheme to improve accuracy. This framework generalizes polynomial fitting and addresses some of its accuracy and stability issues, as demonstrated by our theoretical analysis as well as experimental results.
description: 12 pages, 12 figures, ACM Solid and Physical Modeling Symposium, June 2008
On convergence of solutions of fractal Burgers equation toward rarefaction waves
Creators: name: Karch, Grzegorz
name: Miao, Changxing
name: Xu, Xiaojing
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60J60, 35B40,35K55,35Q53

description: In the paper, the large time behavior of solutions of the Cauchy problem for the one dimensional fractal Burgers equation $u_t+(-\partial^2_x)^{α/2} u+uu_x=0$ with $α\in (1,2)$ is studied. It is shown that if the nondecreasing initial datum approaches the constant states $u_\pm$ ($u_-
description: 15 pages
H.U.N.E. 2004
Creators: name: Lange, Mathias
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Additional file 1 of Genome-wide DNA methylation profiles of low- and high-grade adenoma reveals potential biomarkers for early detection of colorectal carcinoma
Creators: name: Fan, Jian
name: Li, Jun
name: Guo, Shicheng
name: Tao, Chengcheng
name: Zhang, Haikun
name: Wang, Wenjing
name: Zhang, Ying
name: Zhang, Dake
name: Ding, Shigang
name: Zeng, Changqing
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1. Supplementary figures and tables
Mid-to-Far Infrared Spectral Energy Distribution of Galaxies in Spitzer First Look Survey Field
Creators: name: Wen, Xiao-Qing
name: Wu, Hong
name: Cao, Chen
name: Xia, Xiao-Yang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We made model fitting to the mid-to-far infrared spectral energy distributions (SEDs) for different categories of galaxies in the main extragalactic field of the {\it Spitzer} First Look Survey with the aid of spectroscopic information from the Sloan Digital Sky Survey. We find that the mid-to-far infrared SEDs of HII galaxies, mixture type galaxies and LINERs can be well fitted by the one-parameter ($α$) dust model of Dale et al. plus the 13 Gyr dust-free elliptical galaxy model. The statistics of $α$ values indicates that all these galaxies tend to be quiescent, although the HII galaxies are relatively more active than the LINERs. The mid-infrared SEDs of absorption galaxies are well fitted simply by the 13 Gyr dust-free elliptical galaxy template, and the near-to-mid infrared SEDs of QSOs can be represented by AGN NGC 5506.
description: 12 pages with 8 figures, will be appeared in ChJAA, Vol.7 (2007), No.2
Phase diagram of the $p$-spin-interacting spin glass with ferromagnetic bias and a transverse field in the infinite-$p$ limit
Creators: name: Obuchi, Tomoyuki
name: Nishimori, Hidetoshi
name: Sherrington, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The phase diagram of the $p$-spin-interacting spin glass model in a transverse field is investigated in the limit $p \to \infty$ under the presence of ferromagnetic bias. Using the replica method and the static approximation, we show that the phase diagram consists of four phases: Quantum paramagnetic, classical paramagnetic, ferromagnetic, and spin-glass phases. We also show that the static approximation is valid in the ferromagnetic phase in the limit $p \to \infty$ by using the large-$p$ expansion. Since the same approximation is already known to be valid in other phases, we conclude that the obtained phase diagram is exact.
description: 16 pages, 4 figures. another additional author, some amendments
Additional file 6 of UBIAD1 alleviates ferroptotic neuronal death by enhancing antioxidative capacity by cooperatively restoring impaired mitochondria and Golgi apparatus upon cerebral ischemic/reperfusion insult
Creators: name: Huang, Yan
name: Liu, Jianyang
name: He, Jialin
name: Hu, Zhiping
name: Tan, Fengbo
name: Zhu, Xuelin
name: Yuan, Fulai
name: Jiang, Zheng
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Mental Health

description: Additional file 6. Modified neurological severity score grading system.Additional file 7. Primary and secondary antibodies.
H.U.N.E. 2004
Creators: name: Näser, Claudia
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Measurement of the total cross section for the π - 2π reaction p(π⁺, π⁺ π⁰)p near threshold
Creators: name: Suen, Nelson
Publisher: name: University of British Columbia
Year: 2008

description: A feasibility study for measuring the total cross section of the π - 2π reaction, π⁺p → π⁺π⁰p, was performed at incident pion kinetic energies of 195 and 201 MeV. It was not possible to measure the total cross section with the present apparatus. Modifications and improvements to the present apparatus are presented.
Strong interactions and gauge/string duality
Creators: name: Boschi-Filho, Henrique
name: Braga, Nelson R. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss some recent phenomenological models for strong interactions based on the idea of gauge/string duality. A very good estimate for hadronic masses can be found by placing an infrared cut off in AdS space. Considering static strings in this geometry one can also reproduce the phenomenological Cornell potential for a quark anti-quark potential at zero temperature. Placing static strings in an AdS Schwarzschild space with an infrared cut off one finds a transition from a confining to a deconfining phase at some critical horizon radius (associated with temperature).
description: Talk presented in "Infrared QCD In Rio: Propagators, Condensates And Topological Effects", (IRQCD 2006), 5-9 Jun 2006, Rio de Janeiro, Brazil. Revision v2: more references included. Version published in the proceedings. V3: typos corrected
H.U.N.E. 2004
Creators: name: Budka, Julia
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Humboldt-University Nubian Expedition (H.U.N.E.) in Dar al-Manasir – Erster Bericht: Survey 2004
Creators: name: Kammerzell, Frank
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Control of nonlocal magnon spin transport via magnon drift currents
Creators: name: Schlitz, Richard
name: Vélez, Saül
name: Kamra, Akashdeep
name: Lambert, Charles-Henri
name: Lammel, Michaela
name: Goennenwein, Sebastian T. B.
name: Gambardella, Pietro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin transport via magnon diffusion in magnetic insulators is important for a broad range of spin-based phenomena and devices. However, the absence of the magnon equivalent of an electric force is a bottleneck. In this work, we demonstrate the controlled generation of magnon drift currents in yttrium iron garnet/platinum heterostructures. By performing electrical injection and detection of incoherent magnons, we find magnon drift currents that stem from the interfacial Dzyaloshinskii-Moriya interaction. We can further control the magnon drift by the orientation of the magnetic field. The drift current changes the magnon propagation length by up to $\pm$ 6 % relative to diffusion. We generalize the magnonic spin transport theory to include a finite drift velocity resulting from any inversion asymmetric interaction, and obtain results consistent with our experiments.
description: 6 pages, 3 figures
Partial order from disorder in a classical pyrochlore antiferromagnet
Creators: name: Chern, Gia-Wei
name: Moessner, R.
name: Tchernyshyov, O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate theoretically the phase diagram of a classical Heisenberg antiferromagnet on the pyrochlore lattice perturbed by a weak second-neighbor interaction J_2. The huge ground state degeneracy of the nearest-neighbor Heisenberg spins is lifted by J_2 and a magnetically ordered ground state sets in upon approaching zero temperature. We have found a new, partially ordered phase with collinear spins at finite temperatures for a ferromagnetic J_2. In addition to a large nematic order parameter, this intermediate phase also exhibits a layered structure and a bond order that breaks the sublattice symmetry. Thermodynamic phase boundaries separating it from the fully disordered and magnetically ordered states scale as 1.87 J_2 S^2 and 0.26 J_2 S^2 in the limit of small J_2. The phase transitions are discontinuous. We analytically examine the local stability of the collinear state and obtain a boundary T ~ J_2^2/J_1 in agreement with Monte Carlo simulations.
description: 14 pages revtex, revised phase diagram, references added
Macdonald Indices for Four-dimensional $\mathcal N=3$ Theories
Creators: name: Agarwal, Prarit
name: Andriolo, Enrico
name: Kántor, Gergely
name: Papageorgakis, Constantinos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We brute-force evaluate the vacuum character for $\mathcal N=2$ vertex operator algebras labelled by crystallographic complex reflection groups $G(k,1,1)=\mathbb Z_k$, $k=3,4,6$, and $G(3,1,2)$. For $\mathbb Z_{3,4}$ and $G(3,1,2)$ these vacuum characters have been conjectured to respectively reproduce the Macdonald limit of the superconformal index for rank one and rank two S-fold $\mathcal N=3$ theories in four dimensions. For the $\mathbb Z_3$ case, and in the limit where the Macdonald index reduces to the Schur index, we find agreement with predictions from the literature.
description: 5 pages, 1 figure, 3 supplementary Mathematica notebooks; v2: minor corrections, v3: notebook links to ope.math and OPEdefs packages fixed and new results summary notebook included
A scheme for demonstration of fractional statistics of anyons in an exactly solvable model
Creators: name: Han, Y. -J.
name: Raussendorf, R.
name: Duan, L. -M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a scheme to demonstrate fractional statistics of anyons in an exactly solvable lattice model proposed by Kitaev that involves four-body interactions. The required many-body ground state, as well as the anyon excitations and their braiding operations, can be conveniently realized through \textit{dynamic}laser manipulation of cold atoms in an optical lattice. Due to the perfect localization of anyons in this model, we show that a quantum circuit with only six qubits is enough for demonstration of the basic braiding statistics of anyons. This opens up the immediate possibility of proof-of-principle experiments with trapped ions, photons, or nuclear magnetic resonance systems.
description: 4 pages, 3 figures
Simulations of collision times in gravity driven granular flow
Creators: name: Drozd, John J.
name: Denniston, Colin
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use simulations to investigate collision time distributions as one approaches the static limit of steady-state flow of dry granular matter. The collision times fall in a power-law distribution with an exponent dictated by whether the grains are ordered or disordered. Remarkably, the exponents have almost no dependence on dimension. We are also able to resolve a disagreement between simulation and experiments on the exponent of the collision time power-law distribution.
description: 7 pages, 5 figures
Demagnetization Protocols for Frustrated Interacting Nanomagnet Arrays
Creators: name: Wang, R. F.
name: Li, J.
name: McConville, W.
name: Nisoli, C.
name: Ke, X.
name: Freeland, J. W.
name: Rose, V.
name: Grimsditsch, M.
name: Lammert, P.
name: Crespi, V. H.
name: Schiffer, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We report a study of demagnetization protocols for frustrated arrays of interacting single domain permalloy nanomagnets by rotating the arrays in a changing magnetic field. The most effective demagnetization is achieved by not only stepping the field strength down while the sample is rotating, but by combining each field step with an alternation in the field direction. By contrast, linearly decreasing the field strength or stepping the field down without alternating the field direction leaves the arrays with a larger remanent magnetic moment. These results suggest that non-monotonic variations in field magnitude around and below the coercive field are important for the demagnetization process.
description: 12 pages, 4 figures
Asymptotics of linear differential systems and application to quasi-normal modes of nonrotating black holes
Creators: name: Langlois, David
name: Noui, Karim
name: Roussille, Hugo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The traditional approach to perturbations of nonrotating black holes in General Relativity uses the reformulation of the equations of motion into a radial second-order Schrödinger-like equation, whose asymptotic solutions are elementary. Imposing specific boundary conditions at spatial infinity and near the horizon defines, in particular, the quasi-normal modes of black holes. For more complicated equations of motion, as encountered for instance in modified gravity models with different background solutions and/or additional degrees of freedom, we present a new approach that analyses directly the first-order differential system in its original form and extracts the asymptotic behaviour of perturbations, without resorting to a second-order reformulation. As a pedagogical illustration, we apply this treatment to the perturbations of Schwarzschild black holes and then show that the standard quasi-normal modes can be obtained numerically by solving this first-order system with a spectral method. This new approach paves the way for a generic treatment of the asymptotic behaviour of black hole perturbations and the identification of quasi-normal modes in theories of modified gravity.
description: v2: version accepted for publication in Physical Review D
Controlled Shock Shells and Intracluster Fusion Reactions in the Explosion of Large Clusters
Creators: name: Peano, F.
name: Fonseca, R. A.
name: Martins, J. L.
name: Silva, L. O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The ion phase-space dynamics in the Coulomb explosion of very large ($\sim 10^6 - 10^7$ atoms) deuterium clusters can be tailored using two consecutive laser pulses with different intensities and an appropriate time delay. For suitable sets of laser parameters (intensities and delay), large-scale shock shells form during the explosion, thus highly increasing the probability of fusion reactions within the single exploding clusters. In order to analyze the ion dynamics and evaluate the intracluster reaction rate, a one-dimensional theory is used, which approximately accounts for the electron expulsion from the clusters. It is found that, for very large clusters (initial radius $\sim$ 100 nm), and optimal laser parameters, the intracluster fusion yield becomes comparable to the intercluster fusion yield. The validity of the results is confirmed with three-dimensional particle-in-cell simulations.
description: 25 pages, 11 figures, to appear in Physical Review A
Additional file 1 of Atypical deletion of Williams–Beuren syndrome reveals the mechanism of neurodevelopmental disorders
Creators: name: Zhou, Jianrong
name: Zheng, Ying
name: Liang, Guiying
name: Xu, Xiaoli
name: Liu, Jian
name: Chen, Shaoxian
name: Ge, Tongkai
name: Wen, Pengju
name: Zhang, Yong
name: Liu, Xiaoqing
name: Zhuang, Jian
name: Wu, Yueheng
name: Chen, Jimei
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Table S1. Evaluation results of the physical development of patients with atypical deletion by the Z-score method.
Thermodynamic Interpretation of Field Equations at Horizon of BTZ Black Hole
Creators: name: Akbar, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A spacetime horizon comprising with a black hole singularity acts like a boundary of a thermal system associated with the notions of temperature and entropy. In case of static metric of BTZ black hole, the field equations near horizon boundary can be expressed as a thermal identity $dE = TdS + P_{r}dA$, where $E = M$ is the mass of BTZ black hole, $dA$ is the change in the area of the black hole horizon when the horizon is displaced infinitesimally small, $P_{r}$ is the radial pressure provided by the source of Einstein equations, $S= 4πa$ is the entropy and $T = κ/ 2π$ is the Hawking temperature associated with the horizon. This approach is studied further to generalize it for non-static BTZ black hole and show that it is also possible to interpret the field equation near horizon as a thermodynamic identity $dE = TdS + P_{r}dA + Ω_{+} dJ$, where $Ω_{+}$ is the angular velocity and $J$ is the angular momentum of BTZ black hole. These results indicate that the field equations for BTZ black hole possess intrinsic thermodynamic properties near horizon.
description: 8 pages
Hamadab - das Hauptquartier des Akinidad?
Creators: name: Wolf, Pawel
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Black hole perturbations in modified gravity
Creators: name: Langlois, David
name: Noui, Karim
name: Roussille, Hugo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the linear perturbations about nonrotating black holes in the context of degenerate higher-order scalar-tensor (DHOST) theories, using a systematic approach that extracts the asymptotic behaviour of perturbations (at spatial infinity and near the horizon) directly from the first-order radial differential system governing these perturbations. For axial (odd-parity) modes, this provides an alternative to the traditional approach based on a second-order Schrödinger-like equation with an effective potential, which we also discuss for completeness. For polar (even-parity) modes, which contain an additional degree of freedom in DHOST theories, and are thus more complex, we use a direct treatment of the four-dimensional first-order differential system (without resorting to a second order reformulation). We illustrate our study with two specific types of black hole solutions: 'stealth' Schwarzschild black holes, with a non trivial scalar hair, as well as a class of non-stealth black holes whose metric is distinct from Schwarzschild. The knowledge of the asymptotic behaviours of the perturbations enables us to compute numerically quasi-normal modes, as we show explicitly for the non-stealth solutions. Finally, the asymptotic form of the modes also signals some pathologies in the stealth and non-stealth solutions considered here.
description: v3: version accepted for publication in Physical Review D
HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting one Member of a Stellar Binary
Creators: name: Bakos, G. A.
name: Noyes, R. W.
name: Kovacs, G.
name: Latham, D. W.
name: Sasselov, D. D.
name: Torres, G.
name: Fischer, D. A.
name: Stefanik, R. P.
name: Sato, B.
name: Johnson, J. A.
name: Pal, A.
name: Marcy, G. W.
name: Butler, R. P.
name: Esquerdo, G. A.
name: Stanek, K. Z.
name: Lazar, J.
name: Papp, I.
name: Sari, P.
name: Sipocz, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using small automated telescopes in Arizona and Hawaii, the HATNet project has detected an object transiting one member of the double star system ADS 16402 AB. This system is a pair of G0 main-sequence stars with age about 3 Gyr at a distance of ~139 pc and projected separation of ~1550 AU. The transit signal has a period of 4.46529 days and depth of 0.015 mag. From follow-up photometry and spectroscopy, we find that the object is a "hot Jupiter" planet with mass about 0.53 M_jup and radius ~1.36 R_jup traveling in an orbit with semimajor axis 0.055 AU and inclination about 85.9 deg, thus transiting the star at impact parameter 0.74 of the stellar radius. Based on a data set spanning three years, ephemerides for the transit center are: T_C = 2453984.397 + N_tr * 4.46529. The planet, designated HAT-P-1b, appears to be at least as large in radius, and smaller in mean density, than any previously-known planet.
description: 8 pages, accepted for publication in ApJ, see also http://www.hatnet.hu (www.hatnet.hu)
All-optical non-demolition measurement of single-hole spin in a quantum-dot molecule
Creators: name: Troiani, F.
name: Wilson-Rae, I.
name: Tejedor, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an all-optical scheme to perform a non-demolition measurement of a single hole spin localized in a quantum-dot molecule. The latter is embedded in a microcavity and driven by two lasers. This allows to induce Raman transitions which entangle the spin state with the polarization of the emitted photons. We find that the measurement can be completed with high fidelity on a timescale of 100 ps, shorter than the typical T2. Furthermore, we show that the scheme can be used to induce and observe spin oscillations without the need of time-dependent magnetic fields.
Exact bound states in volcano potentials
Creators: name: Koley, Ratna
name: Kar, Sayan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum mechanics in a one--parameter family of volcano potentials is investigated. After a discussion on their construction and classical mechanics, we obtain exact, normalisable bound states for specific values of the energy. The nature of the wave functions and probability densities, as well as some curious features of the solutions are highlighted.
description: 10 pages, 6 figures, to appear in Phys. Lett. A
Perfect transference of a d-level quantum state over pseudo-distance-regular networks
Creators: name: Jafarizadeh, M. A.
name: Sufiani, R.
name: Taghavi, S. F.
name: Barati, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Following the prescription of Ref. \cite{PST} in which perfect state transference (PST) of a qubit over distance regular spin networks was discussed, in this paper PST of an arbitrary $d$-level quantum state (qudit) over antipodes of more general networks called pseudo distance-regular networks, is investigated. In fact, the spectral analysis techniques used in the previous work \cite{PST}, and algebraic structures of pseudo distance-regular graphs are employed to give an explicit formula for suitable coupling constants in the Hamiltonians so that the state of a particular qudit initially encoded on one site will evolve freely to the opposite site without any dynamical control, i.e., we show that how to derive the parameters of the system so that PST can be achieved. Keywords:Perfect state transfer, $d$-level quantum state, Stratification, Pseudo-distance-regular network PACs Index: 01.55.+b, 02.10.Yn
description: 28 pages, 5 figures
Spectral properties of three-dimensional Anderson model
Creators: name: Šuntajs, Jan
name: Prosen, Tomaž
name: Vidmar, Lev
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The three-dimensional Anderson model represents a paradigmatic model to understand the Anderson localization transition. In this work we first review some key results obtained for this model in the past 50 years, and then study its properties from the perspective of modern numerical approaches. Our main focus is on the quantitative comparison between the level sensitivity statistics and the level statistics. While the former studies the sensitivity of Hamiltonian eigenlevels upon inserting a magnetic flux, the latter studies the properties of unperturbed eigenlevels. We define two versions of dimensionless conductance, the first corresponding to the width of the level curvature distribution relative to the mean level spacing, and the second corresponding to the ratio of the Heisenberg and the Thouless time obtained from the spectral form factor. We show that both conductances look remarkably similar around the localization transition, in particular, they predict a nearly identical critical point consistent with other measures of the transition. We then study some further properties of those quantities: for level curvatures, we discuss particular similarities and differences between the width of the level curvature distribution and the characteristic energy studied by Edwards and Thouless in their pioneering work [J. Phys. C. 5, 807 (1972)]. In the context of the spectral form factor, we show that at the critical point it enters a broad time-independent regime, in which its value is consistent with the level compressibility obtained from the level variance. Finally, we test the scaling solution of the average level spacing ratio in the crossover regime using the cost function minimization approach introduced in [Phys. Rev. B. 102, 064207 (2020)]. We find that the extracted transition point and the scaling coefficient agree with those from the literature to high numerical accuracy.
Additional file 3 of Atypical deletion of Williams–Beuren syndrome reveals the mechanism of neurodevelopmental disorders
Creators: name: Zhou, Jianrong
name: Zheng, Ying
name: Liang, Guiying
name: Xu, Xiaoli
name: Liu, Jian
name: Chen, Shaoxian
name: Ge, Tongkai
name: Wen, Pengju
name: Zhang, Yong
name: Liu, Xiaoqing
name: Zhuang, Jian
name: Wu, Yueheng
name: Chen, Jimei
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Hematology
subject: Plant Biology
subject: Computational Biology

description: Additional file 3: Table S3. Facial features of nine WBS patients with atypical deletion.
Synchronization Model for Stock Market Asymmetry
Creators: name: Donangelo, Raul
name: Jensen, Mogens H.
name: Simonsen, Ingve
name: Sneppen, Kim
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: The waiting time needed for a stock market index to undergo a given percentage change in its value is found to have an up-down asymmetry, which, surprisingly, is not observed for the individual stocks composing that index. To explain this, we introduce a market model consisting of randomly fluctuating stocks that occasionally synchronize their short term draw-downs. These synchronous events are parameterized by a ``fear factor'', that reflects the occurrence of dramatic external events which affect the financial market.
description: 4 pages, 4 figures
Space Photometry with BRITE-Constellation
Creators: name: W, Weiss W.
name: K., Zwintz
name: R., Kuschnig
name: G., Handler
name: J., Moffat A. F.
name: D., Baade
name: M., Bowman D.
name: T., Granzer
name: T., Kallinger
name: F., Koudelka O.
name: C., Lovekin C.
name: C., Neiner
name: H., Pablo
name: A., Pigulski
name: A., Popowicz
name: T., Ramiaramanantsoa
name: M., Rucinski S.
name: G., Strassmeier K.
name: A, Wade G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: BRITE-Constellation is devoted to high-precision optical photometric monitoring of bright stars, distributed all over the Milky Way, in red and/or blue passbands. Photometry from space avoids the turbulent and absorbing terrestrial atmosphere and allows for very long and continuous observing runs with high time resolution and thus provides the data necessary for understanding various processes inside stars (e.g., asteroseismology) and in their immediate environment. While the first astronomical observations from space focused on the spectral regions not accessible from the ground it soon became obvious around 1970 that avoiding the turbulent terrestrial atmosphere significantly improved the accuracy of photometry and satellites explicitly dedicated to high-quality photometry were launched. A perfect example is BRITE-Constellation, which is the result of a very successful cooperation between Austria, Canada and Poland. Research highlights for targets distributed nearly over the entire HRD are presented, but focus primarily on massive and hot stars.
description: BRITE-Constellation was designed, built, launched, and is operated and supported by the Austrian Research Promotion Agency, the University of Vienna, the Technical University of Graz, the University of Innsbruck, the Canadian Space Agency, the University of Toronto Institute for Aerospace Studies, the Foundation for Polish Science and Technology and the National Science Centre. 23 figures
The effects of polymer-controlled hydration on nuclear magnetic resonance parameters
Creators: name: Lees, Irene
Publisher: name: University of British Columbia
Year: 2008

description: The polymer polyethylene glycol (PEG) was used to control the amount of hydration in lipid bilayers. These bilayers were composed of either 1, 2-dimyristoyl-sn-glycero-3-phophocholine (DMPC) or 1, 2-dipalmitoyl-sn-glycero-3-phophocholine (DPPC) and oriented between glass slides. These lipids were deuterated in the head group to allow their study with 2H Nuclear Magnetic Resonance (NMR). Specifically, the quadrupolar splitting (Avg), the gel to liquid crystalline phase transition temperature (Tn,), the spin-lattice relaxation times and the spin-spin relaxation times were investigated as the membrane was dehydrated. Both Avg and Tn, are hydration dependent but no systematic change in the relaxation times was noted as a function of the water content of the sample. The spin-spin relaxation times did show an orientation dependence. The analysis led to the proposal that thickness fluctuations and thermal undulations of the membrane were two possible mechanisms for this relaxation.
Rapidly Spinning Black Holes in Quasars: An Open Question
Creators: name: Rafiee, Alireza
name: Hall, Patrick B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Wang et al. (2006) estimated an average radiative efficiency of 30% -- 35% for quasars at moderate redshift. We find that their method is not independent of quasar lifetimes and thus that quasars do not necessarily have such high efficiencies. Nonetheless, it is possible to derive interrelated constraints on quasar lifetimes, Eddington ratios, and radiative efficiencies of supermassive black holes. We derive such constraints using a statistically complete sample of quasars with black hole mass estimates from broad Mg II, made both with and without the radiation pressure correction of Marconi et al. (2008). We conclude that for quasars with L/LEdd > 0.02, lifetimes can range from 140 to 750 Myr for Schwarzschild black holes. Coupled with observed black hole masses, quasar lifetimes of < 140 Myr would imply that radiatively inefficient accretion or BH mergers must be important in the accretion history of quasars. Given reasonable assumptions about the quasar population, if the average quasar lifetime is < 1 Gyr, and if radiatively inefficient accretion is unimportant, then not many BHs with Eddington ratio < 0.2 can be rapidly spinning.
description: 14 pages, 3 figures, accepted by ApJ on Sep 2008
Coarse-grained self-testing
Creators: name: Frérot, Irénée
name: Acín, Antonio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Self-testing is a device-independent method that usually amounts to show that the maximal quantum violation of a Bell's inequality certifies a unique quantum state, up to some symmetries inherent to the device-independent framework. In this work, we enlarge this approach and show how a coarse-grained version of self-testing is possible in which physically relevant properties of a many-body system are certified. For that we study a Bell scenario consisting of an arbitrary number of parties and show that the membership to a set of (entangled) quantum states whose size grows exponentially with the number of particles can be self-tested. Specifically, we prove that a many-body generalization of the chained Bell inequality is maximally violated if and only if the underlying quantum state is equal, up to local isometries, to a many-body singlet. The maximal violation of the inequality therefore certifies any statistical mixture of the exponentially-many orthogonal pures states spanning the singlet manifold.
description: Published version
Matter density distribution of general relativistic highly magnetized jets driven by black holes
Creators: name: Ogihara, Taiki
name: Ogawa, Takumi
name: Toma, Kenji
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: High-resolution very long baseline interferometry (VLBI) radio observations have resolved the detailed emission structures of active galactic nucleus jets. General relativistic magnetohydrodynamic (GRMHD) simulations have improved the understanding of jet production physics, although theoretical studies still have difficulties in constraining the origin and distribution of jetted matter. We construct a new steady, axisymmetric GRMHD jet model to obtain approximate solutions of black hole (BH) magnetospheres, and examine the matter density distribution of jets. By assuming fixed poloidal magnetic field shapes that mimic force-free analytic solutions and GRMHD simulation results and assuming constant poloidal velocity at the separation surface, which divides the inflow and outflow, we numerically solve the force-balance between the field lines at the separation surface and analytically solve the distributions of matter velocity and density along the field lines. We find that the densities at the separation surface in our parabolic field models roughly follow $\propto r_{ss}^{-2}$ in the far zone from the BH, where $r_{ss}$ is the radius of the separation surface. When the BH spin is larger or the velocity at the separation surface is smaller, the density at the separation surface becomes concentrated more near the jet edge. Our semi-analytic model, combined with radiative transfer calculations, may help interpret the high-resolution VLBI observations and understand the origin of jetted matter.
description: 15 pages, 10 figures, 1 table, Accepted for publication in ApJ
Διοίκηση Μονάδων Υγείας: Ηθικοκοινωνική προσέγγιση της διαχείρισης ευαίσθητων προσωπικών δεδομένων στα δημόσια νοσοκομεία
Creators: name: Κωστενιάν, Μαρί Ονίκ
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Προσωπικά δεδομένα
Ευαίσθητα προσωπικά δεδομένα
Κανονισμός Προστασίας Δεδομένων Υγείας
Privacy
Μedical privacy
Electronic Medical Record

description: Η παρούσα εργασία πραγματεύεται την ηθικοκοινωνική προσέγγιση των ευαίσθητων προσωπικών δεδομένων στις μονάδες υγείας. Στην αρχή της εργασίας, διασαφηνίζονται έννοιες και όροι, όσον αφορά το απόρρητο, την ιδιωτικότητα και τα ευαίσθητα προσωπικά δεδομένα. Στη συνέχεια, γίνεται αναφορά στο ιστορικό του ιατρικού απορρήτου καθώς και στην νομοθεσία που διέπει την ιδιωτικότητα, σε διεθνές και εθνικό επίπεδο. Κατόπιν αναλύονται οι σύγχρονες θεωρίες περί ιδιωτικότητας και ο τρόπος αλληλεπίδρασης τους με τις μονάδες υγείας. Σημαντικό μέρος αφιερώνεται στην ηθική προσέγγιση των δεδομένων υγείας καθώς και στην άποψη της Ορθόδοξης Εκκλησίας. Τέλος, παρατίθενται τα συμπεράσματα που εξήχθησαν από την παρούσα πτυχιακή εργασία.
description: The present work deals with the socio-social approach of sensitive personal data in health units. At the beginning of the work, concepts and terms regarding privacy and personal data are clarified. Then we referred to the history of medical confidentiality, the legislation governing the privacy of health facilities, and the laws that apply to the protection of medical care in international and national level. Then we analyze modern privacy theories and the interaction with health units. An important part is devoted to the ethical approach, to health data, as well as to the view of the Orthodox Church. At the end, the conclusions from this thesis are drawn.
Ausgrabungen im Hof des Tempels 300 der Großen Anlage von Musawwarat es Sufra Kampagne 2004
Creators: name: Wolf, Pawel
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Off-shell pion electromagnetic form factors in chiral perturbation theory
Creators: name: Rudy, Timothy Edward
Publisher: name: University of British Columbia
Year: 2008

description: The electromagnetic form factors of the pion play a role in investigations of various electromagnetic interactions. We calculate the off-shell pion form factors using chiral perturbation theory, which is the effective theory for QCD at low energies. Chiral perturbation theory has previously been used to calculate the on-shell form factors. The formalism is here described, and it is modified to accomodate possible off-shell contributions to Green functions in the pseudoscalar meson sector. We find that in addition to the phenomenological constant 'L₉' associated with the pion charge radius, another phenomenological constant enters the electromagnetic form factor ƒπ⁺. This constant scales a contribution that is linear in (p² - mπ²) for either of the pions at the vertex.
Multimodal Representation Learning via Maximization of Local Mutual Information
Creators: name: Liao, Ruizhi
name: Moyer, Daniel
name: Cha, Miriam
name: Quigley, Keegan
name: Berkowitz, Seth
name: Horng, Steven
name: Golland, Polina
name: Wells, William M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We propose and demonstrate a representation learning approach by maximizing the mutual information between local features of images and text. The goal of this approach is to learn useful image representations by taking advantage of the rich information contained in the free text that describes the findings in the image. Our method trains image and text encoders by encouraging the resulting representations to exhibit high local mutual information. We make use of recent advances in mutual information estimation with neural network discriminators. We argue that the sum of local mutual information is typically a lower bound on the global mutual information. Our experimental results in the downstream image classification tasks demonstrate the advantages of using local features for image-text representation learning.
description: In Proceedings of International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), 2021
Additional file 1 of Sex differences in neuropsychiatric symptoms in Alzheimer’s disease dementia: a meta-analysis
Creators: name: Eikelboom, Willem S.
name: Pan, Michel
name: Ossenkoppele, Rik
name: Coesmans, Michiel
name: Gatchel, Jennifer R.
name: Ismail, Zahinoor
name: Lanctôt, Krista L.
name: Fischer, Corinne E.
name: Mortby, Moyra E.
name: van den Berg, Esther
name: Papma, Janne M.
Publisher: name: figshare
Year: 2022
Subjects: Neuroscience
Biotechnology
Cancer
Science Policy
Mental Health

description: Additional file 1: eTable 1. Search strategy literature search. eTable 2. Study quality assessment. eTable 3. Characteristics of included studies. eTable 4. Meta-regression analyses prevalence specific NPS. eTable 5. Meta-regression analyses severity specific NPS. eTable 6. Publication bias measures for all meta-analyses. eTable 7. Duval and Tweedie’s trim-and-fill method to adjust for publication bias. eTable 8. Sex differences in the prevalence NPS for meta-analyses that excluded outliers. eTable 9. Sex differences in the severity of NPS for meta-analyses that excluded outliers. eFigure 1. Forest plots for meta-analyses prevalence specific NPS. eFigure 2. Forest plots for meta-analyses severity specific NPS. eFigure 3. Funnel plots for meta-analyses prevalence specific NPS. eFigure 4. Funnel plots for meta-analyses severity specific NPS.