cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling of drift-diffusion systems
Creators: name: Stephan, Holger
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: drift-diffusion systems
subject: energy models
subject: free energy
subject: Lyapunov functions
subject: positive solutions
subject: inverse Hessian
subject: cross diffusion
subject: 35K55
subject: 80A20
subject: 82D37
subject: 82C31
subject: 35B50
subject: 35G25

description: We derive drift-diffusion systems describing transport processes starting from free energy and equilibrium solutions by a unique method. We include several statistics, heterostructures and cross diffusion. The resulting systems of nonlinear partial differential equations conserve mass and positivity, and have a Lyapunov function (free energy). Using the inverse Hessian as mobility, non-degenerate diffusivity matrices turn out to be diagonal, or - in the case of cross diffusion - even constant.
Thermal Masses and Equilibrium Rates in the Quark Gluon Phase
Creators: name: Alam, Jane
name: Roy, Pradip
name: Sarkar, Sourav
name: Raha, Sibaji
name: Sinha, Bikash
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We apply the momentum integrated Boltzmann transport equation to study the time evolution of various quark flavours in the central region of ultra-relativistic heavy ion collisions. The effects of thermal masses for quarks and gluons are incorporated to take into account the in-medium properties of these ingredients of the putative quark gluon plasma. We find that even under very optimistic conditions, complete chemical equilibration in the quark gluon plasma appears unlikely.
description: Plain latex file
Survival and complete convergence for a spatial branching system with local regulation
Creators: name: Birkner, Matthias
name: Depperschmidt, Andrej
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Regulated population
subject: survival
subject: coexistence
subject: complete convergence
subject: 60K35
subject: 92D40

description: We study a discrete time spatial branching system on $Z^d$ with logistic-type local regulation at each deme depending on a weighted average of the population in neighbouring demes. We show that the system survives for all time with positive probability if the competition term is small enough. For a restricted set of parameter values, we also obtain uniqueness of the non-trivial equilibrium and complete convergence, as well as long-term coexistence in a related two-type model.
Cost-Benefit Analyses of Investments to Control Illicit Substance Abuse and Addiction
Creators: name: Caulkins, Jonathan
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: This paper gives an overview of what is known concerning illicit drug control interventions’ “return on investment” performance from a social planner’s perspective. It is organized by broad type of intervention (supply control, prevention, treatment, harm reduction, and integration across intervention types). The discussion is primarily US-centric, with somewhat greater reliance on international literature vis a vis harm reduction.
Doña Teresa en la cueva. Relación de los varios sucesos de Don Manuel Contreras y Doña Teresa de Rivera: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2021
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2022), led by the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
A Plasma Prism Model for an Anomalous Dispersion Event in the Crab Pulsar
Creators: name: Backer, D. C.
name: Wong, T.
name: Valanju, J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In 1997 October daily monitoring observations of the Crab pulsar at 327 MHz and 610 MHz with an 85ft telescope in Green Bank, WV showed a jump in the dispersion measure by 0.1 cm$^{-3}$ pc. Pulses were seen simultaneously at both old and new dispersions over the course of several days. During the dispersion jump the pulsed flux diminished by an order of magnitude. In the months before this event the average pulse profiles contained faint ``ghost'' pulse components offset in phase from the regular main pulse and interpulse components by a nearly frequency independent time delay that quadratically diminished to zero over a month. After the dispersion event there was an order of magnitude increase in the level of scattering, as measured by pulse broadening at 327 MHz. There was also a curious shift in the rotational phase, a slowing down, at both frequencies at the time of the dispersion jump which we associate with intrinsic timing noise. All of the observed phenomena except this slowing down can be explained by the variable perturbing optics of a triangular plasma prism that is located in the filamentary interface between the synchrotron nebula and the supernova ejecta and which crosses the line of sight over a period of months. The required density, scale length and velocity are reasonable given previous observations and analysis of these filaments. Our study thus provides a probe of the plasma column on scales of 30 microarcsecond to 3 milliarcsecond ($10^{12-14}$ cm) which complements scales accessible to optical emission line studies with HST resolution ($10^{16-18}$ cm). In combination both observations provide a detailed look at a sample of the interface region that can be matched statistically to the results of numerical simulations.
description: 13 pr.pp., 9 fig.; scheduled for the v543n2p Nov 10, 2000 issue of ApJ
Cost-Benefit Analyses of Investments to Control Illicit Substance Abuse and Addiction
Creators: name: Caulkins, Jonathan P.
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: This paper gives an overview of what is known concerning illicit drug control interventions’ “return on investment” performance from a social planner’s perspective. It is organized by broad type of intervention (supply control, prevention, treatment, harm reduction, and integration across intervention types). The discussion is primarily US-centric, with somewhat greater reliance on international literature vis a vis harm reduction.
Individual project on theme "Fritillaria L." (MOOC: CompTech in biology)
Creators: name: Anisimov Andrey
Publisher: name: Zenodo
Year: 2024

description: Данный кейс является результатом реализации индивидуального проекта Анисимова Андрея по теме "Fritillaria L." в рамках онлайн курса "Компьютерные технологии в биологии" (автор – А.В. Ваганов) (https://stepik.org/course/60859/promo)
A solution of Braess' approximation problem on powers of the distance function
Creators: name: Kraus, Christiane
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Polynomial approximation in 2-space
subject: maximal convergence
subject: Bernstein-Walsh's type theorems
subject: 41A25
subject: 41A10
subject: 41A60
subject: 41A63
subject: 41A17

description: The polynomial approximation behaviour of the class of functions $$ F_s: R^2(x_0, y_0 ) -> R, F_s(x,y) = ( (x-x_0)^2 + (y-y_0)^2 )^(-s), s in (0, infty),$$ is studied in [Bra01]. There it is claimed that the obtained results can be embedded in a more general setting. This conjecture will be confirmed and complemented by a different approach than in [Bra01]. The key is to connect the approximation rate of F_s with its holomorphic continuability for which the classical Bernstein approximation theorem is linked with the convexity of best approximants. Approximation results of this kind also play a vital role in the numerical treatment of elliptic differential equations [Sau].
Policy Cloud Data Driven Policymaking Week Presentation Slides
Creators: name: Crespi, Daniele
name: Duzha, Armend
name: Timan, Tjerk
name: Georgieva, Ana
name: Bozhkova, Petya
name: Carrillo, Liliana
name: Sancho Royo, Janier
name: Gracia, Migue Angel
name: Navarro de la Cruz, Mariano
name: Williams, Ben
name: Mureddu, Francesco
name: Willems, Marieke
Publisher: name: Zenodo
Year: 2021
Subjects: Policy Cloud
EOSC
Data-Driven
Policy Management
policymaking

description: Data Driven Policymaking Week wants to unite policymakers, public administrators, decision makers, and social science researchers around the four pilot use cases at the heart of the Policy Cloud project.

 Spread across Bulgaria, Italy, Spain, and the United Kingdom, these pilot use cases serve as demonstrators for data-driven policy management and model and showcase best-practice methodologies for engaging communities. Policies against radicalisation  Urban policy making through analysis of crowdsourced data Pilot Intelligent policies for the food value chain Open Data Policies for Citizens

 During the week 26-29 April 2021, four webinars were hosted by Policy Cloud consortium technology partners and experts from the Policy Cloud Impact Creation Board. Each webinar focuses on one of pilot use cases.

 The purpose of the webinars is to introduce the pilot use cases and present the technology solutions being developed to address each one's policymaking challenges.
Topology of Spaces of Valuations and Geometry of Singularities
Creators: name: de Felipe, Ana B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14B05, 14E15

description: Given an algebraic variety X defined over an algebraically closed field, we study the space RZ(X,x) consisting of all the valuations of the function field of X which are centered in a closed point x of X. We concentrate on its homeomorphism type. We prove that, when x is a regular point, this homeomorphism type only depends on the dimension of X. If x is a singular point of a normal surface, we show that it only depends on the dual graph of a good resolution of (X,x) up to some precise equivalence. This is done by studying the relation between RZ(X,x) and the normalized non-Archimedean link of x in X coming from the point of view of Berkovich geometry. We prove that their behavior is the same.
description: 31 pages
Doña Teresa en la cueva. Relación de los varios sucesos de Don Manuel Contreras y Doña Teresa de Rivera: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2022
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Additional file 2 of The effects of testosterone on bone health in males with testosterone deficiency: a systematic review and meta-analysis
Creators: name: Zhang, Zhichao
name: Kang, Deying
name: Li, Hongjun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 2. Characteristics of Participants.
Generalized coupling in the Kuramoto model
Creators: name: Filatrella, G.
name: Pedersen, N. F.
name: Wiesenfeld, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose a modification of the Kuramoto model to account for the effective change in the coupling constant among the oscillators, as suggested by some experiments on Josephson junction, laser arrays and mechanical systems, where the active elements are turned on one by one. The resulting model is analytically tractable and predicts that both first and second order phase transitions are possible, depending upon the value of a new parameter that tunes the coupling among the oscillators. Numerical simulations of the model are in accordance with the analytical estimates, and in qualitative agreement with the behavior of Josephson junctions coupled via a cavity.
Improved point estimation for inverse gamma regression models
Creators: name: Magalhães, Tiago M.
name: Gallardo, Diego I.
name: Bourguignon, Marcelo
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: This paper develops a bias correction scheme for reparametrized inverse gamma regression models with varying precision [Bourguignon M, Gallardo DI. Reparametrized inverse gamma regression models with varying precision. Stat Neerl. 2020;74(4):611–627], which is tailored to situations where the response variable has an asymmetrical shape on the positive real line. In particular, we discuss maximum-likelihood estimation for the model parameters and derive closed-form expressions for the first-order bias of the estimators. The expressions derived are simple and only require the definition of a few matrices. This enables us to obtain corrected estimators that are approximately unbiased. We conduct an extensive Monte Carlo simulation study to evaluate the performance of the proposed corrected estimators. Finally, we apply the results obtained in three real-world datasets. This paper contains Supplementary Material.
Universality of REM-like ageing in mean field spin glasses
Creators: name: Ben Arous, Gérard
name: Bovier, Anton
name: Černý, Jiři
Publisher: name: Weierstrass Institute
Year: 2007
Subjects: subject: aging
subject: universality
subject: spin glasses
subject: SK model
subject: random walk
subject: 75.10.Nr
subject: 75.10.Jm
subject: 75.10.Hk
subject: 05.30.-d

description: Aging has become the paradigm to describe dynamical behavior of glassy systems, and in particular spin glasses. Trap models have been introduced as simple caricatures of effective dynamics of such systems. In this Letter we show that in a wide class of mean field models and on a wide range of time scales, aging occurs precisely as predicted by the REM-like trap model of Bouchaud and Dean. This is the first rigorous result about aging in mean field models except for the REM and the spherical model
Cosponsorship in the U.S. Senate: A Multilevel Approach to Detecting the Subtle Influence of Social Relational Factors on Legislative Behavior
Creators: name: Gross, Justin H.
name: Shalizi, Cosma
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Why do members of the United States Congress choose to cosponsor legislation proposed by their colleagues and what can we learn from their patterns of cosponsorship? These are questions that have attracted increasing interest among legislative scholars over the past several years, and are, fundamentally, questions about relationships. Unfortunately, most methods of statistical inference with which re- searchers, even methodologists, are likely to be familiar tend to be ill-suited for the analysis of relational data, in which observations are typically interdependent. Previous empirical research on cosponsor- ship in the House and Senate has suffered from two principal limitations. First, it has used statistical tools that ignore the systematic clustering of observations, leading to incorrect inferences. Second, too much emphasis has been placed on large-scale influences such as party and state or region at the expense of more subtle social factors that operate at a lower order of magnitude. In the current paper, we show how carefully chosen random effects might be included within a generalized linear model, in order to better handle network-type patterns of dependence. By explicitly modeling the multilevel structure of the data, we can more confidently investigate whether various dyad-specific properties predict senators' ten- dency to support one another's proposals. In addition to being better suited to a network setting, this approach allows us enormous flexibility in the choice of covariates we may incorporate and the degree to which we pool observations from different levels of analysis. To illustrate, we examine whether a number of potential social factors, capturing homophily, proximity, and role are associated with varying odds of cosponsorship among senators.
Despertador espiritual. Curioso romance: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2024
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Stationary solutions of driven fourth- and sixth-order Cahn--Hilliard type equations
Creators: name: Korzec, Maciek D.
name: Evans, Peter L.
name: Münch, Andreas
name: Wagner, Barbara
Publisher: name: Weierstrass Institute
Year: 2007
Subjects: subject: convective Cahn-Hilliard equation
subject: quantum dots
subject: exponential asymptotics
subject: matching
subject: dynamical systems
subject: 34E05
subject: 74K35
subject: 65P99

description: New types of stationary solutions of a one-dimensional driven sixth-order Cahn-Hilliard type equation that arises as a model for epitaxially growing nano-structures such as quantum dots, are derived by an extension of the method of matched asymptotic expansions that retains exponentially small terms. This method yields analytical expressions for far-field behavior as well as the widths of the humps of these spatially non-monotone solutions in the limit of small driving force strength which is the deposition rate in case of epitaxial growth. These solutions extend the family of the monotone kink and antikink solutions. The hump spacing is related to solutions of the Lambert $W$ function. Using phase space analysis for the corresponding fifth-order dynamical system, we use a numerical technique that enables the efficient and accurate tracking of the solution branches, where the asymptotic solutions are used as initial input. Additionally, our approach is first demonstrated for the related but simpler driven fourth-order Cahn-Hilliard equation, also known as the convective Cahn-Hilliard equation.
On black strings & branes in Lovelock gravity
Creators: name: Kastor, David
name: Mann, Robert
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that black strings and branes may be constructed in pure Einstein gravity simply by adding flat directions to a vacuum black hole solution. A similar construction holds in the presence of a cosmological constant. While these constructions fail in general Lovelock theories, we show that they carry over straightforwardly within a class of Lovelock gravity theories that have (locally) unique constant curvature vacua.
description: 12 pages, Latex, references addded
Pre-Cluster Dynamics In Multifragmentation
Creators: name: Norenberg, W.
name: Papp, Gabor
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The initial production and dynamical expansion of hot spherical nuclei are examined as the first stage both in the projectile-multifragmentation and in central collision processes. The initial temperatures, which are necessary for entering the adiabatic spinodal region, as well as the minimum temperatures and densities, which are reached in the expansion, significantly differ for hard and soft equations of state. Additional initial compression, occurring in central collisions leads most likely to a qualitatively different multifragmentation mechanism. Recent experimental data are discussed in relation to the results of the proposed model.
description: 6 pages LaTeX with 3 EPSF figures; Proceedings of the 1st Catania Relativistic Ion Studies: Critical Phenomena and Collective Observables, Acicastello, May 27-31, 1996, to be published by World Scientific Publ. Co
title: Open Pedagogy for Teaching Structures
title: Open Pedagogy
titleType: AlternativeTitle
Creators: name: Dermody, Robert
Publisher: name: University of Massachusetts Amherst
Year: 2019
Subjects: subject: Pedagogy
subject: Open
subject: Structures
subject: Architecture
subject: FOS: Civil engineering

description: There is great potential to improve student engagement and retention by using open resources and pedagogies to teach structures. Open Educational Resources, OER, as defined by OER Commons are “…teaching and learning materials that you may freely use and reuse at no cost, and without needing to ask permission”. Open Pedagogy is more difficult to define, but Wiley states that “Open pedagogy is that set of teaching and learning practices only possible in the context of the free access and 5R permissions characteristic of open educational resources.” 2 The “5R permissions” refers to the fundamental basis of sharing open content that allows anyone to Retain, Reuse, Revise, Remix, or Redistribute the content of the resource in question. After teaching structures for many years, using several different textbooks, with varying results in student engagement and learning outcomes, the author decided to investigate/develop open pedagogies to use in teaching fundamental structural concepts. This paper will focus on the author’s recent experiences in introducing open pedagogies into an existing, second- year, introductory structures course. The primary goal of this experiment was to improve students’ retention of course content and engage them more directly in their coursework by challenging them to find, create and share open content. Another goal was to guide students in creating documents containing pertinent structural design information that they could maintain for use in their future structures courses and design studios. Students were required to create their own websites to store and share their work in the course. This exercise exposed students to the “5R’s” of open content, at a relatively small scale. The course goals and context in which open resources and pedagogy were used will be explained and described. Future potentials for using open pedagogies to teach structures will also be discussed.
Silicon-Organic Hybrid (SOH) Mach-Zehnder Modulators for 100 Gbit/s On-Off Keying
Creators: name: Wolf, Stefan
name: Zwickel, Heiner
name: Hartmann, Wladislaw
name: Lauermann, Matthias
name: Kutuvantavida, Yasar
name: Kieninger, Clemens
name: Altenhain, Lars
name: Schmid, Rolf
name: Luo, Jingdong
name: Jen, Alex K. -Y.
name: Randel, Sebastian
name: Freude, Wolfgang
name: Koos, Christian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electro-optic modulators for high-speed on-off keying (OOK) are key components of short- and mediumreach interconnects in data-center networks. Besides small footprint and cost-efficient large-scale production, small drive voltages and ultra-low power consumption are of paramount importance for such devices. Here we demonstrate that the concept of silicon-organic hybrid (SOH) integration is perfectly suited for meeting these challenges. The approach combines the unique processing advantages of large-scale silicon photonics with unrivalled electro-optic (EO) coefficients obtained by molecular engineering of organic materials. In our proof-of-concept experiments, we demonstrate generation and transmission of OOK signals with line rates of up to 100 Gbit/s using a 1.1 mm-long SOH Mach-Zehnder modulator (MZM) which features a π-voltage of only 0.9 V. This experiment represents not only the first demonstration of 100 Gbit/s OOK on the silicon photonic platform, but also leads to the lowest drive voltage and energy consumption ever demonstrated at this data rate for a semiconductor-based device. We support our experimental results by a theoretical analysis and show that the nonlinear transfer characteristic of the MZM can be exploited to overcome bandwidth limitations of the modulator and of the electric driver circuitry. The devices are fabricated in a commercial silicon photonics line and can hence be combined with the full portfolio of standard silicon photonic devices. We expect that high-speed power-efficient SOH modulators may have transformative impact on short-reach optical networks, enabling compact transceivers with unprecedented energy efficiency that will be at the heart of future Ethernet interfaces at Tbit/s data rates.
Anisotropic growth of random surfaces in $2+1$ dimensions
Creators: name: Borodin, Alexei
name: Ferrari, Patrik
Publisher: name: Weierstrass Institute
Year: 2008
Subjects: subject: Anisotropic KPZ
subject: Gaussian free field
subject: 82C22
subject: 60K35
subject: 60G55
subject: 60G1

description: We construct a family of stochastic growth models in $2+1$ dimensions, that belong to the anisotropic KPZ class. Appropriate projections of these models yield $1+1$ dimensional growth models in the KPZ class and random tiling models. We show that correlation functions associated to our models have determinantal structure, and we study large time asymptotics for one of the models. The main asymptotic results are: (1) The growing surface has a limit shape that consists of facets interpolated by a curved piece. (2) The one-point fluctuations of the height function in the curved part are asymptotically normal with variance of order $ln(t)$ for time $tgg 1$. (3) There is a map of the $(2+1)$-dimensional space-time to the upper half-plane $H$ such that on space-like submanifolds the multi-point fluctuations of the height function are asymptotically equal to those of the pullback of the Gaussian free (massless) field on $H$.
MOESM1 of Loading capacity of dynamic knee spacers: a comparison between hand-moulded and COPAL spacers
Creators: name: Chong, Sook-Yee
name: Shen, Lu
name: Frantz, Sandra
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Astronomical and Space Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology

description: Additional file 1: Figure S1. Mean and standard deviation of changes in axial displacement (d) during cyclic loading [30 1200 N] of all specimens implanted with COPAL knee spacers. Figure S2. Broken femoral component of COPAL knee spacer of one specimen during cyclic loading to 2600 N.
Evidence of a topological Hall effect in Eu$_{1-x}$Sm$_x$TiO$_3$
Creators: name: Ahadi, Kaveh
name: Galletti, Luca
name: Stemmer, Susanne
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the observation of a possible topological Hall effect in thin films of the itinerant ferromagnet Eu1-xSmxTiO3. EuTiO3 and Eu0.955Sm0.045TiO3 films were grown by molecular beam epitaxy. The EuTiO3 film is insulating. The Hall resistivity of the Eu0.955Sm0.045TiO3 films exhibits the anomalous Hall effect below the Curie temperature of ~ 5 K as well as additional features that appear at 2 K. It is shown that these features are magnetic in origin and consistent with the topological Hall effect seen in materials systems with topologically nontrivial spin textures, such as skyrmions. The results open up interesting possibilities for epitaxial hybrid heterostructures that combine topological magnetic states, tunable carrier densities, and other phenomena.
description: Accepted, Appl. Phys. Lett
Despertador espiritual. Curioso romance: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2021
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2022), led by the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Despertador espiritual. Curioso romance: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2022
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2022), led by the professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Spatial correlations in driven-dissipative photonic lattices
Creators: name: Biondi, Matteo
name: Lienhard, Saskia
name: Blatter, Gianni
name: Tureci, Hakan E.
name: Schmidt, Sebastian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the nonequilibrium steady-state of interacting photons in cavity arrays as described by the driven-dissipative Bose-Hubbard and spin-$1/2$ XY model. For this purpose, we develop a self-consistent expansion in the inverse coordination number of the array ($\sim 1/z$) to solve the Lindblad master equation of these systems beyond the mean-field approximation. Our formalism is compared and benchmarked with exact numerical methods for small systems based on an exact diagonalization of the Liouvillian and a recently developed corner-space renormalization technique. We then apply this method to obtain insights beyond mean-field in two particular settings: (i) We show that the gas--liquid transition in the driven-dissipative Bose-Hubbard model is characterized by large density fluctuations and bunched photon statistics. (ii) We study the antibunching--bunching transition of the nearest-neighbor correlator in the driven-dissipative spin-$1/2$ XY model and provide a simple explanation of this phenomenon.
description: 12 pages, 6 figures, submitted to New Journal of Physics (Focus issue on Many-body Physics with Photons and Polaritons) on August 22nd, 2017
Cosmic Ray Generation by Quasar Remnants: Constraints and Implications
Creators: name: Boldt, Elihu
name: Loewenstein, Michael
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The quasar remnant cores of nearby giant elliptical galaxies NGC 4486 (M87), NGC 1399, NGC 4649 and NGC 4472 are the sites of supermassive (greater than one billion solar masses) black holes. These objects are investigated as to the viability of the conjecture that they could harbor compact dynamos capable of generating the highest energy cosmic rays. For an accretion process involving an equipartition magnetic field near the event horizons of the underlying putative spun-up black holes, the energy achievable in accelerating protons could well be greater or equal than 100 EeV for all these when only considering the drag induced by curvature radiation. Estimates of the SED (spectral energy distribution) of ambient core photons lead to the conclusion that the energy losses arising from photo-pion production in proton collisions with these target photons are relatively small for all but M87. For M87, the ambient photon field is likely to be a limiting factor. Accretion rates on the order of one solar mass per year, comparable to the Bondi rates and to the stellar mass loss rates, are associated with (greater than 100 EeV) cosmic ray generation in the other (electromagnetically dark) galactic core sites. If these sites are found to be sources of such cosmic rays, it would suggest the presence of a global inflow of interstellar gas all the way into the center of the host galaxy.
description: 11 pages Latex, no figures, uses mn and amssymb style files, accepted for publication in MNRAS
Handbook on Project Management in EU Grant Funding
Creators: name: National Institute of Chemistry
name: Tišler, Barbara
name: Vodeb, Nastja
name: Vodeb, Nastja
name: Ilić, Ivica
name: Železnik, Ana
name: Letić, Tina
Publisher: name: Zenodo
Year: 2024

description: Description: This comprehensive handbook serves as an essential guide for effectively managing projects funded by the European Union. It covers key topics such as the principles of project management, navigating Horizon Europe, preparing grant agreements, and ensuring successful reporting and communication. Additionally, the handbook includes practical templates and guidelines, aiming to enhance the interdisciplinary and international integration of the Slovenian research community. Designed for project managers and teams, it offers insights into efficient project execution, budget management, and compliance with EU requirements. The handbook is a valuable resource for maximizing the impact and success of EU-funded projects.

Keywords: Project Management, EU Funding, Horizon Europe, Grant Agreements, Research Projects, National Institute of Chemistry, Slovenia, 5xPRO, Project Implementation, Budget Management, Reporting, Communication, Templates, Guidelines

Design: Jure Legac

Publisher: National Institute of Chemistry, Ljubljana, Slovenia

Publication Year: 2024
Temperature-dependence of the QCD topological susceptibility
Creators: name: Kovacs, Tamas G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We recently obtained an estimate of the axion mass based on the hypothesis that axions make up most of the dark matter in the universe. A key ingredient for this calculation was the temperature-dependence of the topological susceptibility of full QCD. Here we summarize the calculation of the susceptibility in a range of temperatures from well below the finite temperature cross-over to around 2 GeV. The two main difficulties of the calculation are the unexpectedly slow convergence of the susceptibility to its continuum limit and the poor sampling of nonzero topological sectors at high temperature. We discuss how these problems can be solved by two new techniques, the first one with reweighting using the quark zero modes and the second one with the integration method.
description: 9 pages, 6 figures, to be published in Proceedings of the 35th International Symposium on Lattice Field Theory (Lattice2017)}: Granada, Spain}, to appear in EPJ Web Conf
Correlates of homicide: new space/time interaction tests for spatiotemporal point processes
Creators: name: Flaxman, Seth R.
name: Neill, Daniel B.
name: Smola, Alex
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Statistical inference on spatiotemporal data often proceeds by focusing on the temporal aspect of the data, ignoring space, or the spatial aspect, ignoring time. In this paper, we explicitly focus on the interaction between space and time. Using a geocoded, time-stamped dataset from Chicago of almost 9 millions calls to 911 between 2007 and 2010, we ask whether any of these call types are associated with shootings or homicides. Standard correlation techniques do not produce meaningful results in the spatiotemporal setting because of two confounds: purely spatial effects (i.e. “bad” neighborhoods) and purely temporal effects (i.e. more crimes in the summer) could introduce spurious correlations. To address this issue, a handful of statistical tests for space-time interaction have been proposed, which explicitly control for separable spatial and temporal dependencies. Yet these classical tests each have limitations. We propose a new test for space-time interaction, using a Mercer kernel-based statistic for measuring the distance between probability distributions. We compare our new test to existing tests on simulated and real data, where it performs comparably to or better than the classical tests. For the application we consider, we find a number of interesting and significant space-time interactions between 911 call types and shootings/homicides
Duality in Off-Shell Electromagnetism
Creators: name: Land, Martin
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we examine the Dirac monopole in the framework of Off-Shell Electromagnetism, the five dimensional U(1) gauge theory associated with Stueckelberg-Schrodinger relativistic quantum theory. After reviewing the Dirac model in four dimensions, we show that the structure of the five dimensional theory prevents a natural generalization of the Dirac monopole, since the theory is not symmetric under duality transformations. It is shown that the duality symmetry can be restored by generalizing the electromagnetic field strength to an element of a Clifford algebra. Nevertheless, the generalized framework does not permit us to recover the phenomenological (or conventional) absence of magnetic monopoles.
description: 18 pages
Despertador espiritual: Digital edition
Creators: name: Leblanc Elina
Publisher: name: Zenodo
Year: 2024
Subjects: Spanish literature
Digital edition
XML-TEI

description: Digital edition of a Spanish pliego de cordel, published by the Andalusian printer José María Moreno (19th c.). It contains the XML-TEI file of the edition, as well as the files that led to this edition, i.e. the digital facsimiles (raw and retouched), and the transcription produced by the OCR tool Transkribus (PAGE-XML). This digital edition is a part of the research project Desenrollando el cordel / Untangling the cordel / Démêler le cordel (2020-2024), led by professor Constance Carta at the University of Geneva and supported by the philanthropic Sandoz-Monique de Meuron Family Foundation.
Sharp asymptotics for metastability in the random field Curie--Weiss model
Creators: name: Bianchi, Alessandra
name: Bovier, Anton
name: Ioffe, Dmitry
Publisher: name: Weierstrass Institute
Year: 2008
Subjects: subject: Disordered system
subject: random field Curie-Weiss model
subject: Glauber dynamics
subject: metastability
subject: potential theory
subject: Dirichlet form
subject: capacity
subject: 82C44
subject: 60K35
subject: 60G70

description: In this paper we study the metastable behavior of one of the simplest disordered spin system, the random field Curie-Weiss model. We will show how the potential theoretic approach can be used to prove sharp estimates on capacities and metastable exit times also in the case when the distribution of the random field is continuous. Previous work was restricted to the case when the random field takes only finitely many values, which allowed the reduction to a finite dimensional problem using lumping techniques. Here we produce the first genuine sharp estimates in a context where entropy is important.
Pion Absorption Cross Section for ^2H and ^3He in the Delta-Isobar Region: A Phenomenological Connection
Creators: name: Kamada, H.
name: Locher, M. P.
name: Lee, T. -S. H.
name: Golak, J.
name: Markushin, V. E.
name: Glöckle, W.
name: Witala, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The absorption of π^+ on ^3He in the $Δ$-region is evaluated with exact inclusion of the final state interaction among the three emerging protons. The absorption is described by a $πN \to Δ$ vertex and a $NΔ- NN$ transition t-matrix which are calculated from a phenomenological model for NN and πd reactions. In a calculation where the initial pion scattering effects are neglected, the predicted peaks of the pion absorption cross sections for ^2H and ^3He lie too high in energy in relation to the data. The effect of the final state three-nucleon interaction turns out to be too small for changing the magnitude and shifting the peak position of the total absorption cross section for ^3He. We demonstrate that the adjustment of the peak position for the deuteron cross section by small modifications of the $Δ$-parameters, automatically leads to the correct peak position in ^3He.
description: 12 pages, REVTeX, 10 PostScript figures, submitted to Phys. Rev. C
The Horizontal Branch population of NGC 1851 as revealed by the Ultra-violet Imaging Telescope (UVIT)
Creators: name: Subramaniam, Annapurni
name: Sahu, Snehalata
name: Postma, Joseph E.
name: Côté, Patrick
name: Hutchings, J. B.
name: Darukhanawalla, N.
name: Chul, Chung
name: Tandon, S. N.
name: Rao, N. Kameswara
name: George, K.
name: Ghosh, S. K.
name: Girish, V.
name: Mohan, R.
name: Murthy, J.
name: Pati, A. K.
name: Sankarasubramanian, K.
name: Stalin, C. S.
name: Choudhury, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the UV photometry of the globular cluster NGC 1851 using images acquired with the Ultra-violet Imaging Telescope (UVIT) onboard the ASTROSAT satellite. PSF-fitting photometric data derived from images in two far-UV (FUV) filters and one near-UV (NUV) filter are used to construct color-magnitude diagrams (CMD), in combination with HST and ground-based optical photometry. In the FUV, we detect only the bluest part of the cluster horizontal branch (HB); in the NUV, we detect the full extent of the HB, including the red HB, blue HB and a small number of RR Lyrae stars. UV variability was detected in 18 RR Lyrae stars, and 3 new variables were also detected in the central region. The UV/optical CMDs are then compared with isochrones of different age and metallicity (generated using Padova and BaSTI models) and synthetic HB (using helium enhanced $Y^2$ models). We are able to identify two populations among the HB stars, which are found to have either an age range of 10-12~Gyr, or a range in Y$_{ini}$ of 0.23 - 0.28, for a metallicity of [Fe/H] =$-$1.2 to $-$1.3. These estimations from the UV CMDs are consistent with those from optical studies. The almost complete sample of the HB stars tend to show a marginal difference in spatial/azimuthal distribution among the blue and red HB stars. This study thus show cases the capability of UVIT, with its excellent resolution and large field of view, to study the hot stellar population in Galactic globular clusters.
description: 46 pages, 19 figures, accepted for publication in Astronomical Journal
MOESM1 of Electromagnetic field treatment increases purinergic receptor P2X7 expression and activates its downstream Akt/GSK3β/β-catenin axis in mesenchymal stem cells under osteogenic induction
Creators: name: Zhang, Yingchi
name: Li, Wenkai
name: Liu, Chaoxu
name: Yan, Jiyuan
name: Yuan, Xuefeng
name: Wang, Wei
name: Wang, Huaixi
name: Wu, Hua
name: Yang, Yong
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 1. EMF device, identification of human bone marrow mesenchymal stem cells, and primer sequences for quantitative RT-PCR.
Corporate Restructuring and R&D: A Panel Data Analysis for the Chemical Industry
Creators: name: Arora, Ashish
name: Ceccagnoli, Marco
name: Rin, Marco Da
Publisher: name: Carnegie Mellon University
Year: 2001
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: We contribute a novel approach to the existing literature on the effects of restructuring on R&D investment by focussing on a single industry, chemicals. The chemical industry is very research intensive and has experienced thorough restructuring since the early 1980s. By focussing on a single industry we are able to identify the technological and R&D features of its segments. This is important, since there is evidence that restructuring affects R&D differently in businesses with different technological features. However, no study so far has provided a systematic inquiry into this link. Using a panel of 535 European, American, and Japanese firms for the years 1987-1997 we find restructuring to be an important component in the observed changes in R&D intensity. We show that restructuring affects R&D both through changes in size and through changes in the composition of business portfolios, and that these effects differ across industry segments.
On the Glauber model in a quantum representation
Creators: name: Michael, Thomas
name: Trimper, Steffen
name: Schulz, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The Glauber model is reconsidered based on a quantum formulation of the Master equation. Unlike the conventional approach the temperature and the Ising energy are included from the beginning by introducing a Heisenberg-like picture of the second quantized operators. This method enables us to get an exact expression for the transition rate of a single flip-process $w_i(σ_i)$ which is in accordance with the principle of detailed balance. The transition rate differs significantly from the conventional one due to Glauber in the low temperature regime. Here the behavior is controlled by the Ising energy and not by the microscopic time scale.
description: 8 pages