cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sowing black hole seeds: Direct collapse black hole formation with realistic Lyman-Werner radiation in cosmological simulations
Creators: name: Dunn, Glenna
name: Bellovary, Jillian
name: Holley-Bockelmann, Kelly
name: Christensen, Charlotte
name: Quinn, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the birth of supermassive black holes from the direct collapse process and characterize the sites where these black hole seeds form. In the pre-reionization epoch, molecular hydrogen (H$_2$) is an efficient coolant, causing gas to fragment and form Population III stars, but Lyman-Werner radiation can suppress H$_2$ formation and allow gas to collapse directly into a massive black hole. The critical flux required to inhibit H$_2$ formation, $J_{\rm crit}$, is hotly debated, largely due to the uncertainties in the source radiation spectrum, H$_2$ self-shielding, and collisional dissociation rates. Here, we test the power of the direct collapse model in a self-consistent, time-dependant, non-uniform Lyman-Werner radiation field -- the first time such has been done in a cosmological volume -- using an updated version of the SPH+N-body tree code Gasoline with H$_2$ non-equilibrium abundance tracking, H$_2$ cooling, and a modern SPH implementation. We vary $J_{\rm crit} $ from $30$ to $10^3$ in units of $J_{21}$ to study how this parameter impacts the number of seed black holes and the type of galaxies which host them. We focus on black hole formation as a function of environment, halo mass, metallicity, and proximity of the Lyman-Werner source. Massive black hole seeds form more abundantly with lower $J_{\rm crit}$ thresholds, but regardless of $J_{\rm crit}$, these seeds typically form in halos that have recently begun star formation. Our results do not confirm the proposed atomic cooling halo pair scenario; rather black hole seeds predominantly form in low-metallicity pockets of halos which already host star formation.
description: 10 pages, 8 figures, accepted by ApJ
Nonlinear Sigma Model for String Solitons
Creators: name: Natsuume, M.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that a renormalizable nonlinear sigma model gives rise to the effective string theory proposed by Polchinski and Strominger. In the presence of long string background, the model contains massive world-sheet degrees of freedom owing to the spontaneous breaking of conformal invariance.
description: 7 pages, 2 figures(not included), standard LaTeX file, UTTG-10-92
Robust Manipulation via Contact Sensing
Creators: name: Koval, Michael C.
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Humans effortlessly manipulate objects in cluttered and uncertain environments. In contrast, most robotic manipulators are limited to carefully engineered environments to circumvent the difficulty of manipulation under uncertainty. Contact sensors can provide robots with the feedback vital to addressing this limitation. This thesis proposes a framework for using feedback from contact sensors to reliably manipulate objects under uncertainty. We formalize manipulation as a partially observable Markov decision process that includes object pose uncertainty, proprioceptual error, and kinematic constraints. Our algorithms exploit the structure of contact to efficiently estimate state and plan with this model. First, we introduce the manifold particle filter as a principled method of estimating object pose and robot configuration. This algorithm avoids degeneracy by drawing samples from the lowerdimensional manifold of states induced by contact. Next, we introduce two belief space planning algorithms that seek out contact with sensors when doing so is necessary to achieve the goal. One algorithm harnesses the decoupling effect of contact to share computation between problem instances. The second leverages lower-dimensional structure to plan around kinematic constraints. Finally, we evaluate the efficacy of our approach in real-robot and simulation experiments. The results show that our state estimation and planning algorithms consistently outperform those that are not tailored to manipulation with contact sensing.
Bootstrapping holographic warped CFTs or: how I learned to stop worrying and tolerate negative norms
Creators: name: Apolo, Luis
name: Song, Wei
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use modular invariance to derive constraints on the spectrum of warped conformal field theories (WCFTs) --- nonrelativistic quantum field theories described by a chiral Virasoro and $U(1)$ Kac-Moody algebra. We focus on holographic WCFTs and interpret our results in the simplest holographic set up: three dimensional gravity with Compere-Song-Strominger boundary conditions. Holographic WCFTs feature a negative $U(1)$ level that is responsible for negative norm descendant states. Despite the violation of unitarity we show that the modular bootstrap is still viable provided the (Virasoro-Kac-Moody) primaries carry positive norm. In particular, we show that holographic WCFTs must feature either primary states with negative norm or states with imaginary $U(1)$ charge, the latter of which have a natural holographic interpretation. For large central charge and arbitrary level, we show that the first excited primary state in any WCFT satisfies the Hellerman bound. Moreover, when the level is positive we point out that known bounds for CFTs with internal $U(1)$ symmetries readily apply to unitary WCFTs.
description: 33 pages, 8 figures; v2: appendix and references added, matches published version
Pressure dependence of the superconducting transition and electron correlations in Na_xCoO_2 \cdot 1.3H_2O
Creators: name: Kusano, E.
name: Kawasaki, S.
name: Matano, K.
name: Zheng, G. -q.
name: Meng, R. L.
name: Cmaidalka, J.
name: Chu, C. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report T_c and ^{59}Co nuclear quadrupole resonance (NQR) measurements on the cobalt oxide superconductor Na_{x}CoO_{2}\cdot 1.3H_{2}O (T_c=4.8 K) under hydrostatic pressure (P) up to 2.36 GPa. T_c decreases with increasing pressure at an average rate of -0.49\pm0.09 K/GPa. At low pressures P\leq0.49 GPa, the decrease of T_c is accompanied by a weakening of the spin correlations at a finite wave vector and a reduction of the density of states (DOS) at the Fermi level. At high pressures above 1.93 GPa, however, the decrease of T_c is mainly due to a reduction of the DOS. These results indicate that the electronic/magnetic state of Co is primarily responsible for the superconductivity. The spin-lattice relaxation rate 1/T_1 at P=0.49 GPa shows a T^3 variation below T_c down to T\sim 0.12T_c, which provides compelling evidence for the presence of line nodes in the superconducting gap function.
description: published on 19, Sept. 2007 on Phys. Rev. B
Additional file 5: of A functional variant alters binding of activating protein 1 regulating expression of FGF7 gene associated with chronic obstructive pulmonary disease
Creators: name: Zhang, Xiaomei
name: Guo, Yongxin
name: Yang, Jing
name: Niu, Jianlou
name: Du, Lina
name: Li, Haiyan
name: Li, Xiaokun
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: List of references in Additional file 1: Table S1. (PDF 70 kb)
Multiple Front Propagation Into Unstable States
Creators: name: Montagne, R.
name: Amengual, A.
name: Hernandez-Garcia, E.
name: Miguel, M. San
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The dynamics of transient patterns formed by front propagation in extended nonequilibrium systems is considered. Under certain circumstances, the state left behind a front propagating into an unstable homogeneous state can be an unstable periodic pattern. It is found by a numerical solution of a model of the Fréedericksz transition in nematic liquid crystals that the mechanism of decay of such periodic unstable states is the propagation of a second front which replaces the unstable pattern by a another unstable periodic state with larger wavelength. The speed of this second front and the periodicity of the new state are analytically calculated with a generalization of the marginal stability formalism suited to the study of front propagation into periodic unstable states. PACS: 47.20.Ky, 03.40.Kf, 47.54.+r
description: 12 pages
Robust Bode Methods for Feedback Controller Design of Uncertain Systems
Creators: name: Taylor, Jonathan
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: In this work, we introduce several novel approaches to feedback controller design, known collectively as the “Robust Bode” methods, which adapt classical control principles to a modern robust control (H∞) framework. These methods, based on specially modified Bode diagrams extend familiar frequency-domain controller design techniques to linear and nonlinear, single–input/single– output (SISO) and multi–input/multi–output (MIMO) systems with parametric and/or unstructured uncertainties. In particular, we introduce the Contoured Robust Controller Bode (CRCBode) plots which show contours (level-sets) of a robust metric on the Bode magnitude and phase plots of the controller. An iterative loop shaping design procedure is then employed in an attempt to eliminate all intersections of the controller frequency response with certain forbidden regions indicating that a robust stability and performance criteria is satisfied. For SISO systems a robust stability and performance criterion is derived using Nyquist arguments leading to the robust metric used in the construction of the CRCBode plots. For open-loop unstable systems and for non-minimum phase systems the Youla parametrization of all internally stabilizing controllers is used to develop an alternative Robust Bode method (QBode). The Youla parametrization requires the introduction of state-space methods for coprime factorization, and these methods lead naturally to an elegant connection between linear-quadratic Gaussian (LQG) optimal control theory and Robust Bode loop-shaping controller design. Finally, the Robust Bode approach is extended to MIMO systems. Utilizing a matrix norm based robustness metric on the MIMO CRCBode plots allows cross-coupling between all input/output channels to be immediately assessed and accounted for during the design process, making sequential MIMO loop-shaping controller design feasible.
Endozoochorous plant dispersal by the Brown Bear (Ursus arctos) in the Pyrénées: angiosperms but also ferns and mosses and the importance of disaggregation agents
Creators: name: Pauly, Grégoire
name: Vanpé, Cécile
name: Roy, Mélanie
name: Quenette, Pierre-Yves
name: Sentilles, Jérôme
name: Dumas, Yann
name: Chevalier, Adélie
name: Chevalier, Richard
name: Daufresne, Tanguy
name: Baltzinger, Christophe
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Endozoochory by megafauna enables temperate mountain plants to disperse over long distance. As an endozoochorous agent, Brown Bear may play a unique role through its biology and ecology especially because of its diverse diet (angiosperms, ferns, mosses). However, few studies have been conducted on the dispersal of all angiosperms and none on ferns or mosses. Also, the fact that the faecal matrix could represent a barrier to the germination of dispersed seeds due to various physical or chemical constraints, has often been neglected. In this study, we investigated endozoochory by the European Brown Bear and the faecal matrix effect on germination success. We conducted a seedling emergence monitoring experiment in the greenhouse for seven months to assess seed dispersal potential based on 86 faeces. Each sample was split into two treatments (raw vs. filtered faeces), to test the effect of the faecal matrix on seedling germination and growth. We found that Brown Bear dispersed not only fleshy-fruited plants, but also dry-fruited plants and for the first time among Ursids, ferns and mosses. We also pointed out that the faecal matrix acts as an important barrier for germination with little effect on growth. These results highlight the role of Brown Bears in the dispersal of non-fleshy-fruited plants, and suggest that the spectrum of plant species potentially dispersed by Brown Bear is wider than formerly thought. They also stress the importance of faeces disaggregation on seed dispersal outcomes, a mechanism mediated by abiotic or biotic agents.
Effects of climate variability on secondary xylem formation and anatomy in Fagus sylvatica trees grown in Denmark
Creators: name: Huang, Weiwei
name: Lundqvist, Sven‑Olof
name: Thygesen, Lisbeth Garbrecht
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Tree-ring width chronologies of Fagus sylvatica L. have been studied to understand the growth–climate relationship in Denmark, but there is little evidence of a clear climate signal in such tree-ring width data. In this study, tree-ring width chronologies of F. sylvatica trees growing in an even-aged stand in Denmark over the period 1972–2012 were supplemented with wood density and quantitative wood anatomy variables using the SilviScan-3 combined set-up. The effects of moisture availability and temperature variations on xylem features were investigated. Some xylem features showed stronger associations with drought index (DI) and temperature than ring width. Specifically, the September drought was associated with an increased mean area of the individual fibers in the ring formed the following year. Drought in October resulted in a higher density the following year, probably via increased fiber wall thickness and decreased areas of individual vessels. Further, late summer and early autumn warming increased the vessel density in the following year, but drought reduced their cross-sectional area. By dividing tree rings into ten segments, relationships between wood density and DI could be evaluated at the intra-annual level. In the third segment, wood density decreased with previous year December drought, while the April drought increased the wood density of this segment. Together, the results indicated that xylem formation and anatomy in F. sylvatica seem to be linked to moisture availability and temperature, and that dry and warm conditions affect xylem features differently depending on when they occur relative to wood formation.
G/G Models and W_N strings
Creators: name: Aharony, O.
name: Sonnenschein, J.
name: Yankielowicz, S.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the BRST cohomology of the G/G topological model for the case of A^{(1)}_{N-1} . It is shown that at level k={p/q}-N the latter describes the (p,q) W_N minimal model coupled to $W_N$ gravity (plus some extra ``topological sectors").
description: 17 pages
Rights and Rites: Revolution, Performance, Gender, and Religion in British Novels of the 1790s
Creators: name: Smith, Jamie
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: 200302 English Language
subject: FOS: Languages and literature

description: This dissertation explores the intersections between gendered and religious identity in British novels of the 1790s that engage in revolutionary ideology and rhetoric. My work engages with two dominant cultural-historical narratives in eighteenth-century scholarship: first, the argument that the provenance of modern identity categories can be traced to the revolutionary period and the concomitant emergence of the rights-bearing individual and the bourgeois public sphere; and second, the secularization narrative that elides religion from a consideration of modern identity. Since religion is often positioned as antithetical to reason and the emancipating ideals of the Enlightenment, religion as a category of identity has been dismissed as suspect, repressive, or always already of the past. The main purposes of my dissertation are to consider how eighteenth-century religious identity can be interpreted as both fluid and performative, and to explore the ways in which gender as a modern identity category has been (both positively and negatively) influenced and constructed by its intersections with religion. This project analyzes four Jacobin novels from the period: Charlotte Smith’s Desmond, Elizabeth Inchbald’s A Simple Story, Helen Maria Williams’ Julia, and Ann Radcliffe’s The Italian. My work additionally examines how early feminist discourses were affected, resisted, and constructed by toleration and secularism in the eighteenth century, and how residual constructions of eighteenth-century and Romantic identity inform dominant political and social patterns today.
Self-organization on Riemannian manifolds
Creators: name: Fetecau, Razvan C.
name: Zhang, Beril
Publisher: name: arXiv
Year: 2018
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider an aggregation model that consists of an active transport equation for the macroscopic population density, where the velocity has a nonlocal functional dependence on the density, modelled via an interaction potential. We set up the model on general Riemannian manifolds and provide a framework for constructing interaction potentials which lead to equilibria that are constant on their supports. We consider such potentials for two specific cases (the two-dimensional sphere and the two-dimensional hyperbolic space) and investigate analytically and numerically the long-time behaviour and equilibrium solutions of the aggregation model on these manifolds. Equilibria obtained numerically with other interaction potentials are also presented.
description: 30 pages, 8 figures
Accuracy of environmental tracers and consequence for determining the Type Ia Supernovae magnitude step
Creators: name: BRIDAY, Martin
name: GRAZIANI, Romain
name: KIM, Young-Lo
name: RIGAULT, Mickael
Publisher: name: Zenodo
Year: 2019

description: Type Ia Supernovae (SNeIa) are standard candles that enable us to measure the recent expansion rate of the Universe. However, their true nature remains unknown, and potential astrophysical dependences of SNeIa that may vary between redshift and/or survey may bias cosmological measurements if not properly accounted for. Last decades studies have shown several relations between SNeIa properties and those of their host galaxy. Yet, the correct way to account for the astrophysical effects remains uncertain as various teams find various results — sometime even discrepant — when using various tracers. We propose to compare these previous various environmental analyses methods in light of their ability to accurately trace fundamental SN astrophysical parameters, and notably the progenitor age. We show, as expected, that host colors and H⍺-based specific star formation rate are better age indicator than, say, morphology. More importantly we show that these known accuracy variations actually explain the discrepancy between the SN magnitude step observed when using different environmental tracers.
SCHEDULE. STATEMENT OF SPECIAL WARRANTS, signed by His Honour the Lieutenant-Governor, together with the expenditure incurred thereon, between the 12th March, 1906, and the 12th March, 1907, required by the "Revenue Act," chapter 166, R.S., section 42.
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2014

Abstract
Resonating valence bonds and spinon pairing in the Dicke model
Creators: name: Ganesh, R.
name: Theerthagiri, L.
name: Baskaran, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Resonating valence bond (RVB) states are a class of entangled quantum many body wavefunctions with great significance in condensed matter physics. We propose a scheme to synthesize a family of RVB states using a cavity QED setup with two-level atoms (with states $\vert 0 \rangle$ and $\vert 1 \rangle$) coupled to a common photon mode. In the lossy cavity limit, starting with an initial state of $M$ atoms excited and $N$ atoms in the ground state, we show that this setup can be configured as a Stern Gerlach experiment. A measurement of photon emission collapses the wavefunction of atoms onto an RVB state composed of resonating long-ranged singlets of the form $\frac{1}{\sqrt{2}}[\vert 0 1 \rangle - \vert 1 0 \rangle]$. Each emitted photon reduces the number of singlets by unity, replacing it with a pair of lone spins or `spinons'. As spinons are formed coherently in pairs, they are analogous to Cooper pairs in a superconductor. To simulate pair fluctuations, we propose a protocol in which photons are allowed to escape the cavity undetected. This leads to a mixed quantum state with a fluctuating number of spinon pairs -- an inchoate superconductor. Remarkably, in the limit of large system sizes, this protocol reveals an underlying quantum phase transition. Upon tuning the initial spin polarization ($M-N$), the emission exhibits a continuous transition from a dark state to a bright state. This is reflected in the spinon pair number distribution which can be tuned from sub-poissonian to super-poissonian regimes. This opens an exciting route to simulate RVB states and superconductivity.
description: Scipost submission
Dense Packings of Superdisks and the Role of Symmetry
Creators: name: Jiao, Y.
name: Stillinger, F. H.
name: Torquato, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We construct the densest known two-dimensional packings of superdisks in the plane whose shapes are defined by |x^(2p) + y^(2p)| <= 1, which contains both convex-shaped particles (p > 0.5, with the circular-disk case p = 1) and concave-shaped particles (0 < p < 0.5). The packings of the convex cases with p 1 generated by a recently developed event-driven molecular dynamics (MD) simulation algorithm [Donev, Torquato and Stillinger, J. Comput. Phys. 202 (2005) 737] suggest exact constructions of the densest known packings. We find that the packing density (covering fraction of the particles) increases dramatically as the particle shape moves away from the "circular-disk" point (p = 1). In particular, we find that the maximal packing densities of superdisks for certain p 6 = 1 are achieved by one of the two families of Bravais lattice packings, which provides additional numerical evidence for Minkowski's conjecture concerning the critical determinant of the region occupied by a superdisk. Moreover, our analysis on the generated packings reveals that the broken rotational symmetry of superdisks influences the packing characteristics in a non-trivial way. We also propose an analytical method to construct dense packings of concave superdisks based on our observations of the structural properties of packings of convex superdisks.
description: 15 pages, 8 figures
title: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 81 (2024): KulturGut: aus der Forschung des Germanischen Nationalmuseums
title: KulturGut: aus der Forschung des Germanischen Nationalmuseums
titleType: AlternativeTitle
Creators: name: KulturGut : Aus Der Forschung Des Germanischen Nationalmuseums
Publisher: name: KulturGut : aus der Forschung des Germanischen Nationalmuseums
Year: 2024

description: Aktuelle Ausstellungen / Inhalt / Impressum...12
Kreideglas und Wasserantrieb...8-11
Für’s Wort der Raum ist überwunden...6-7
Ebenso schelmisch wie klug...1-5
Nonlinear Stochastic Differential Equations and Self-Organized Criticality
Creators: name: Diaz-Guilera, Albert
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Several nonlinear stochastic differential equations have been proposed in connection with self-organized critical phenomena. Due to the threshold condition involved in its dynamic evolution an infinite number of nonlinearities arises in a hydrodynamic description. We study two models with different noise correlations which make all the nonlinear contribution to be equally relevant below the upper critical dimension. The asymptotic values of the critical exponents are estimated from a systematic expansion in the number of coupling constants by means of the dynamic renormalization group.
description: RevTeX 3.0, no figures
What unitary matrix models are not?
Creators: name: Lafrance, Rene
name: Myers, Robert
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report results of two investigations of the double-scaling equations for the unitary matrix models. First, the fixed area partition functions have all positive coefficients only for the first four critical points. This implies that the critical points at $k\ge5$ describe non-unitary continuum theories. Secondly, we examine a conjectured connection to branched polymers, but find that the scaling solutions of the unitary models do not agree with those of a particular model describing branched polymers.
description: 9 pages (use jnl)
Effects of climate variability on secondary xylem formation and anatomy in fagus sylvatica trees grown in Denmark
Creators: name: Huang, Weiwei
name: Lundqvist, Sven‑Olof
name: Thygesen, Lisbeth Garbrecht
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Tree-ring width chronologies of Fagus sylvatica L. have been studied to understand the growth–climate relationship in Denmark, but there is little evidence of a clear climate signal in such tree-ring width data. In this study, tree-ring width chronologies of F. sylvatica trees growing in an even-aged stand in Denmark over the period 1972–2012 were supplemented with wood density and quantitative wood anatomy variables using the SilviScan-3 combined set-up. The effects of moisture availability and temperature variations on xylem features were investigated. Some xylem features showed stronger associations with drought index (DI) and temperature than ring width. Specifically, the September drought was associated with an increased mean area of the individual fibers in the ring formed the following year. Drought in October resulted in a higher density the following year, probably via increased fiber wall thickness and decreased areas of individual vessels. Further, late summer and early autumn warming increased the vessel density in the following year, but drought reduced their cross-sectional area. By dividing tree rings into ten segments, relationships between wood density and DI could be evaluated at the intra-annual level. In the third segment, wood density decreased with previous year December drought, while the April drought increased the wood density of this segment. Together, the results indicated that xylem formation and anatomy in F. sylvatica seem to be linked to moisture availability and temperature, and that dry and warm conditions affect xylem features differently depending on when they occur relative to wood formation.
CONVERT IMAGES TO PDF IN C#
Creators: name: Bozorov, Abdumannon
name: Shoyqulov, Shodmonkul
Publisher: name: Zenodo
Year: 2024

description: This article describes the development of a C# program for converting images to PDF using the iTextSharp library. Key aspects of the image conversion algorithm, as well as methods for scaling and correctly integrating them into a PDF document, are considered. The program's performance is analyzed when working with various types of images. Particular attention is paid to the advantages of using C# to solve the conversion problem, and a comparative analysis with alternative approaches in other programming languages is conducted. The article provides examples of practical application of the program in such areas as document management automation and archive creation.
Holographic approach for dark energy - dark matter interaction in curved FLRW spacetime
Creators: name: Cruz, Miguel
name: Lepe, Samuel
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we explore under a holographic approach the dark energy - dark matter interaction in a non-flat Friedmann-Lemaitre-Robertson-Walker spacetime, with a cut-off for the dark energy component given in terms of the Hubble scale. Based on results coming from the use of observational data, we consider a positive interaction $Q$-term together with a Chevallier-Polarsky-Linder type parametrization for the coincidence parameter, we realize that the model admits a Type III future singularity, in this singular universe we have that for a null value of the curvature parameter its scale factor is a constant value. With the use of some cosmological parameters constrained with observational data, we obtain that the crossing of the phantom divide is possible. Once the singular nature is obtained for the model, its Statefinder diagnosis reveals a behavior that is {\it far} from the $Λ$-CDM model.
description: Published version in Classical and Quantum Gravity, references added. 21 pages, 6 figures
Additional file 1 of Mitochondrial phylogenomics of Acanthocephala: nucleotide alignments produce long-branch attraction artefacts
Creators: name: Gao, Jin-Wei
name: Yuan, Xi-Ping
name: Wu, Hao
name: Xiang, Chuan-Yu
name: Xie, Min
name: Song, Rui
name: Chen, Zhong-Yuan
name: Wu, Yuan-An
name: Ou, Dong-Sheng
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Additional file 1: Table S1. Primers used for the amplification and sequencing of the mitogenome of M. dakusuiensis. Table S2. The architecture of the mitogenome of M. dakusuiensis. Text S1. Evolutionary models and partitions. Figure S1. The NUC—ML phylogeny of Palaeacanthocephala. Figure S2. The AAs—ML phylogeny of Palaeacanthocephala. Text S2. BI and CAT-GTR analyses run parameters.
Literatursammlung zu Virtual Reality im Museum
Creators: name: Museums and Society - Mapping the Social
Publisher: name: Museums and Society - Mapping the Social
Year: 2024
Subjects: subject: Virtual reality
subject: Museum
subject: Exhibition

description: Literatursammlung zu Virtual Reality im Museum

Erstellt im Rahmen des Seminars “Virtual Reality im Museum” von Dr. Lukas Fuchsgruber im Studiengang Kunstwissenschaft (SoSe 2023) an der TU Berlin.

Diese Literatursammlung ist auch als Zoterobibliothek verfügbar:https://www.zotero.org/groups/4914574/vr_im_museum/library
Identifying Host Galaxies and Measuring Their Properties for ZTF SNe Ia
Creators: name: KIM, Young-Lo
name: BRIDAY, Martin
name: RIGAULT, Mickael
Publisher: name: Zenodo
Year: 2019

description: It is well-established that Type Ia supernova (SN Ia) luminosities are correlated with their host properties. Understanding and correcting this relation, therefore, would provide a more accurate result for the SN cosmology. However, the origin of the relation is still under debate. In order to investigate the origin of the relation, here we present an on-going effort studying with the recent ZTF SNe Ia data. First, we introduce a host identification method-the directional light radius method-, which considers a (elliptical) size of a galaxy. Then, we measure host properties, such as stellar mass and global star formation rate (SFR), by using LePHARE with BC03 templates and GALEX+SDSS photometry. We show that a distribution of host galaxies in the mass-SFR plane is similar to that of other galaxies. In the near future, we will compare light-curve parameters of ZTF SNe Ia with host galaxy properties to discuss the origin of the relation between SNe Ia and their host galaxies.
Novel Orientational Ordering and Reentrant Metallicity in KxC60 Monolayers for 3 <= x <= 5
Creators: name: Wang, Yayu
name: Yamachika, R.
name: Wachowiak, A.
name: Grobis, M.
name: Khoo, K. H.
name: Lee, D. H.
name: Louie, Steven G.
name: Crommie, M. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed local STM studies on potassium-doped C60 (KxC60) monolayers over a wide regime of the phase diagram. As K content increases from x = 3 to 5, KxC60 monolayers undergo metal-insulator-metal reentrant phase transitions and exhibit a variety of novel orientational orderings. The most striking new structure has a pinwheel-like 7-molecule unit cell in insulating K4+dC60. We propose that the driving mechanism for the orientational ordering in KxC60 is the lowering of electron kinetic energy through maximization of the overlap of neighboring molecular orbitals over the entire doping range x = 3 to 5. In the insulating and metallic phases this gives rise to orbital versions of the superexchange and double-exchange interactions respectively.
description: 16 pages, 4 figures
Face centered cubic SnSe as a $\mathbb{Z}_2$ trivial Dirac nodal line material
Creators: name: Tateishi, Ikuma
name: Matsuura, Hiroyasu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The presence of a Dirac nodal line in a time-reversal and inversion symmetric system is dictated by the $\mathbb{Z}_2$ index when spin-orbit interaction is absent. In a first principles calculation, we show that a Dirac nodal line can emerge in $\mathbb{Z}_2$ trivial material by calculating the band structure of SnSe in a face centered cubic lattice as an example. We qualitatively show that it becomes a topological crystalline insulator when spin-orbit interaction is taken into account. We clarify the origin of the Dirac nodal line by obtaining irreducible representations corresponding to bands and explain the triviality of the $\mathbb{Z}_2$ index. We construct an effective model representing the Dirac nodal line using the {\bf k}$\cdot${\bf p} method, and discuss the Berry phase and a surface state expected from the Dirac nodal line.
description: 6 pages, 8 figures
Factors associated with renal involvement in adult immunoglobulin a vasculitis: what is it?
Creators: name: Kılıç, Özlem
name: Tecer, Duygu
name: Kaya, Mehmet Nur
name: Sungur, Merve Özgünen
name: Çınar, Muhammet
name: Yılmaz, Sedat
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Hematology
subject: Computational Biology

description: The objective of this study is to examine the potential of specific parameters in determining renal involvement in adult patients diagnosed with Immunoglobulin A vasculitis (IgAV). The patients’ records with IgAV meeting the EULAR/PRINTO/PRES classification criteria who were diagnosed between January 2017 and January 2022 were retrospectively reviewed. The Birmingham Vasculitis Activity Score (BVAS) version 3 was used to assess initial disease activity. A comparison was conducted between the data of patients with and without renal involvement. To investigate factors associated with renal involvement, the significant parameters were used to develop a forward stepwise multivariate regression model. Receiver Operating Characteristic (ROC) curve analysis was used to evaluate the predictive ability of significant parameters for renal involvement. The study included 85 patients, of whom 22 (25.9%) had renal involvement. Patients with renal involvement had a median age of 60.5 years and a median follow-up of 56.3 months. The median BVAS and ferritin/albumin ratio (FAR) values were significantly higher in patients with renal involvement (p < 0.001). Multivariate regression analysis identified initial BVAS and FAR values as factors associated with renal involvement. ROC analysis demonstrated that the initial BVAS and FAR values were associated with renal involvement, with AUCs of 0.882 and 0.817, respectively (p < 0.001). The initial BVAS above 7.5, and baseline FAR above 24.97 are factors associated with renal involvement. The results of this study may provide the basis for identifying individuals at high risk for renal involvement and, consequently, for more rigorous monitoring.
Rheology, Diffusion and Plastic Correlations in Jammed Suspensions
Creators: name: Arka Prabha Roy
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 90799 Environmental Engineering not elsewhere classified
subject: FOS: Environmental engineering
subject: 90599 Civil Engineering not elsewhere classified
subject: FOS: Civil engineering

description: We present results using Durian's bubble model [1] to study the spatio- temporal correlations and rheological response to imposed shear ow in steady state in jammed suspensions of soft, frictionless disks. We firrst study the so- called mean drag (MD) variant of the model which is appropriate for modeling particles at interfaces where the dominant dissipation comes from motion of the particle with respect to the phases o the interface.
Usage Statistics Do Count
Creators: name: Bigarella, Chiara
name: Ioannidis, Alexandros
name: Nielsen, Lars
name: Gonzalez Lopez, Jose Benito
Publisher: name: Zenodo
Year: 2019
Subjects: Zenodo
Metrics
Usage statistics
Make Data Count
COUNTER Code of Practices
Code of Practice for Research Data Usage Metrics

description: Make Data Count observes that "Sharing data is time-consuming and researchers need incentives for undertaking the extra work. Metrics for data will provide feedback on data usage, views, and impact that will help encourage researchers to share their data". At Zenodo, we have been working on the same principles and we have launched Zenodo Usage Statistics, a feature that exposes fine-grained up-to-date usage statistics in an easily accessible manner. Now, users can find the number of views and downloads on every record page, and they can also sort search results by most viewed. These statistics are "versioning aware"; by default, we roll-up usage statistics for all versions of a record. However, it is also possible to see detailed usage statistics for the specific version of a record. We strongly believe in user's right to privacy; thus we have spent a lot of time to design our system to ensure all tracking is completely anonymized. As well, our usage statistics are tracked according to industry standards such as the COUNTER Code of Practice as well as the Code of Practice for Research Data Usage Metrics and thus allows our users to compare metrics from Zenodo with other compliant repositories.
Additional file 2 of A map of cis-regulatory modules and constituent transcription factor binding sites in 80% of the mouse genome
Creators: name: Ni, Pengyu
name: Wilson, David
name: Su, Zhengchang
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. Prediction of UMs. A. Similarity graphs of member motifs in the 245 motif clusters. In each graph, a node in blue represents a member motif of the cluster, and two member motifs are connected by an edge in green if their similarity is greater than 0.8 (SPIC score). Clusters with the names in RED font are those in which a UM cannot be found. B. Logos of the 201 UMs found in the corresponding clusters. Figure S2. Examples of predicted CRMs that recover experimentally determined cis-regulatory sequence elements. A. A CRM (chr17:44617516-44620464) recovers a VISTA enhancer located in gene Runx2. B. A CRM (chr18:46916221-46916642) recovers a FANTOM5 enhancer (chr18:46916185-46916414) upstream of gene Arl14epl. C. A CRM (chr3:95542968-95543483) recovers a FANTOM5 promoter (chr3:95543009-95543137) located in gene Ctss. D. A CRM (chr16:61562958-61563095) recovers an MGI QTL (chr16:61562987-61563143) upstream of gene Epha6 and XR_38917.3. The inset is a zooming-in view of the QTL and the CRM.
Nonlocal vertices and analyticity: Landau equations and general Cutkosky rule
Creators: name: Chin, Paokuan
name: Tomboulis, E. T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the analyticity properties of amplitudes in theories with nonlocal vertices of the type occurring in string field theory and a wide class of nonlocal field theory models. Such vertices are given in momentum space by entire functions of rapid decay in certain (including Euclidean) directions ensuring UV finiteness but are necessarily of rapid increase in others. A parametric representation is obtained by integrating out the loop (Euclidean) momenta after the introduction of generalized Schwinger parameters. Either in the original or parametric representation, the well-defined resulting amplitudes are then continued in the complex space of the external momenta invariants. We obtain the alternative forms of the Landau equations determining the singularity surfaces showing that the nonlocal vertices serve as UV regulators but do not affect the local singularity structure. As a result the full set of singularities known to occur in local field theory also occurs here: normal and anomalous thresholds as well as acnodes, crunodes, and cusps that may under certain circumstances appear even on the physical sheet. Singularities of the second type also appear as shown from the parametric representation. We obtain the general Cutkosky discontinuity rule for encircling a singularity by employing contour deformations only in the finite plane. The unitarity condition (optical theorem) is then discussed as a special application of the rule across normal thresholds and the hermitian analyticity property of amplitudes.
description: 31 pages, 5 figures. Typos corrected, some additional clarifying comments, one added reference
Interstitials, Vacancies, and Supersolid Order in Vortex Crystals
Creators: name: Frey, Erwin
name: Nelson, David R.
name: Fisher, Daniel S.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Interstitials and vacancies in the Abrikosov phase of clean Type II superconductors are line imperfections, which cannot extend across macroscopic equilibrated samples at low temperatures. We argue that the entropy associated with line wandering nevertheless can cause these defects to proliferate at a sharp transition which will exist if this occurs below the temperature at which the crystal actually melts. Vortices are both entangled and crystalline in the resulting ``supersolid'' phase, which in a dual ``boson'' analog system is closely related to a two-dimensional quantum crystal of He$^4$ with interstitials or vacancies in its ground state. The supersolid {\it must} occur for $B\gg B_\times$, where $B_\times$ is the decoupling field above which vortices begin to behave two-dimensionally. Numerical calculations show that interstitials, rather than vacancies, are the preferred defect for $B\gg ϕ_0/λ_\perp^2$, and allow us to estimate whether proliferation also occurs for $B\,\lot\,B_\times$.The implications of the supersolid phase for transport measurements, dislocation configurations and neutron diffraction are discussed.
description: 53 pages and 15 figures, available upon request, written in plain TEX
Revealing the Structural and Molecular Basis of Retroviral Assembly and Endolysin PlyC Membrane Translocation Using Surface Plasmon Resonance and Neutron Reflectometry
Creators: name: Marilia Cabral Do Rego Barros
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: In this thesis we focus on the mechanistic understanding of two membrane mediated biological processes: retroviral assembly and endolysin PlyC plasma membrane translocation. Retroviral Gag polyprotein is the structural determinant that assembles in a protein lattice on the hosts plasma membrane to trigger formation of the viral protein/membrane shell.
Thermal Field Theory and Infinite Statistics
Creators: name: Altherr, T.
name: Grandou, T.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a quantum thermal field theory for scalar particles in the case of infinite statistics. The extension is provided by working out the Fock space realization of a "quantum algebra", and by identifying the hamiltonian as the energy operator. We examine the perturbative behavior of this theory and in particular the possible extension of the KLN theorem, and argue that it appears as a stable structure in a quantum field theory context.
description: 25 pp, INLN 92/16, ENSLAPP-A-372/92
Hawking radiation in GHS and non-extremal D1-D5 blackhole via covariant anomalies
Creators: name: Gangopadhyay, Sunandan
name: Kulkarni, Shailesh
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the method of Banerjee and Kulkarni (arXiv:0707.2449, [hep-th]) to provide a derivation of Hawking radiation from the GHS (stringy) blackhole which falls in the class of the most general spherically symmetric blackholes ($\sqrt{-g}\neq 1$) and also the non-extremal $D1-D5$ blackhole using only covariant gravitational anomalies.
description: 8 pages latex file