cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Group Structure of Wilson Loops in 2D Models with 2- and 4-Band Energy Spectra
Creators: name: Supatashvili, T.
name: Eliashvili, M.
name: Tsitsishvili, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a tight-binding model defined by a matrix Hamiltonian over 2D Brillouin zone. Multiband energy spectrum gives rise to a non-Abelian gauge structure set by the Berry connections. The corresponding curvature $F_{μν}$ vanishes throughout the Brillouin zone except an isolated points where $F_{μν}$ is singular. Combining the singular behaviour of $F_{μν}$ with non-Abelian Stokes theorem allows to avoid the path ordering procedure in studying the structure of Wilson loops. 2D models with 2-band and 4-band energy spectra are considered as a demonstrative examples and the group structure of the corresponding Wilson loops is revealed.
description: 7 pages
Sexual selection's impacts on ecological specialization: an experimental test
Creators: name: Pfennig, D. W.
name: Pfennig, K. S.
name: Porter, C.
name: Martin, R. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: In many species, individuals specialize on different resources, thereby reducing competition. Such ecological specialization can promote the evolution of alternative ecomorphs—distinct phenotypes adapted for particular resources. Elucidating whether and how this process is influenced by sexual selection is crucial for understanding how ecological specialization promotes the evolution of novel traits and, potentially, speciation between ecomorphs. We evaluated the population-level effects of sexual selection (as mediated by mate choice) on ecological specialization in spadefoot toad tadpoles that express alternative ecomorphs. We manipulated whether sexual selection was present or reversed by mating females to their preferred versus non-preferred males, respectively. We then exposed their tadpoles to resource competition in experimental mesocosms. The resulting distribution of ecomorphs was similar between treatments, but sexual selection generated poorer trait integration in, and lower fitness of, the more specialized carnivore morph. Moreover, disruptive and directional natural selection were weaker in the sexual selection present treatment. Nevertheless, this effect on disruptive selection was smaller than previously documented effects of ecological opportunity and competitor density. Thus, sexual selection can inhibit adaptation to resource competition and thereby hinder ecological specialization, particularly when females obtain fitness benefits from mate choice that offset the cost of producing competitively inferior offspring.
Do Narcissistic Admiration and Rivalry Matter for the Mental Health of Romantic Partners? Insights from Actor-Partner Interdependence Models
Creators: name: Lautenbacher, Leopold Maria
name: Eid, Michael
name: Richter, David
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: narcissism
subject: mental health
subject: romantic relationships
subject: actor-partner interdependence model
subject: admiration
subject: rivalry
subject: dyadic analysis
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Personality traits of romantic partners may be part of the puzzle of how romantic relationships are related to mental health. We investigated the role of narcissistic admiration and rivalry in this context. Positive associations of admiration and negative associations of rivalry with the mental health of individuals and their partners were hypothesized. Furthermore, we expected admiration to be particularly relevant for the narcissist’s mental health and rivalry to matter more for the partner. Actor-partner interdependence models and Bayesian inference methods were used (n = 7438 couples). Hypotheses and methods were pre-registered. Contrary to expectations, the results only supported the hypotheses concerning actor effects. Most partner effects were miniscule, with the exception of the effect of male rivalry on female mental health. While controlling for extraversion and agreeableness reduced and partly reversed the initial effects of narcissism, an exploratory analysis suggested that these personality factors should be considered as mediators and that most partner effects of admiration and rivalry on mental health may be cases of indirect-only mediation, with extraversion and agreeableness acting as process variables. While replications are needed, the findings suggest that the question posed in the title may be answered with “not that much, apparently”.
title: An evaluation of housing outcomes from a support program for young people transitioning from out-of-home care in Victoria, Australia
Creators: name: Mendes, Philip
name: Purtell, Jade
Publisher: name: Strathprints - University of Strathclyde
Year: 2017

description: Young people transitioning from out-of-home care are globally a vulnerable group due to their traumatic childhood experiences and the often limited support provided to them as they leave the care system. This article presents findings from an evaluation of an Australian leaving care program called Stand by Me (SBM) loosely based on the UK Personal Advisers Model which targeted care leavers with poor social and community connections who were particularly at risk of becoming homeless. The evaluation identified a number of effective components of the program, including the long engagement period which enabled the workers to develop trusting relationships with the young people; the holistic wrap around support that focused on working with the young people in their broader family, social and community contexts; and the availability of housing support to facilitate safe and stable housing options.
Entanglement Spectrum and Entanglement Hamiltonian of a Chern insulator with open boundaries
Creators: name: Hermanns, Maria
name: Salimi, Yann
name: Haque, Masudul
name: Fritz, Lars
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the entanglement spectrum of a Chern insulator on a cylinder geometry, with the cut separating the two partitions taken parallel to the cylinder edge, at varying distances from the edge. In contrast to similar studies on a torus, there is only one cut, and hence only one virtual edge mode in the entanglement spectrum. The entanglement spectrum has a gap when the cut is close enough to the physical edge of the cylinder such that the edge mode spatially extends over the cut. This effect is suppressed for parameter choices where the edge mode is sharply localized at the edge. In the extreme case of a perfectly localized edge mode, the entanglement spectrum is gapless even if the smaller partition consists of a single edge row. For the single-row cut, we construct the corresponding entanglement Hamiltonian, which is a one-dimensional tight-binding Hamiltonian with complex long-range hopping and interesting properties. We also study and explain the effect of two different schemes of flux insertion through a ring described by such an entanglement Hamiltonian.
Polarizabilities of microparticles in relativistic field theory
Creators: name: Maksimenko, N. V.
name: Deruzhkova, O. M.
name: Lukashevich, S. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The article determine a relativistic tensor of the second rank containing the vectors of the electric and magnetic polarization of the medium, based on the Maxwell equations and the determination of the charge density and polarization current of a structural microparticle. Using this tensor and the electromagnetic field tensor, the relativistic lagrangian of the interaction an electromagnetic field with a structural microparticle is obtained, taking into account the polarization of its structural elements. Based on the induced moments, the relativistic lagrangian of the interaction an electromagnetic field with a structural microparticle is constructed with considering the electric and magnetic polarizabilities.
description: 10 pages
Physical Properties of Zener Tunnelling Nano-devices in Graphene
Creators: name: Hills, R. D. Y.
name: Kusmartsev, F. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By considering the direction of charge carriers and the conservation of probablity current the transmission properties of graphene Zener tunnelling nano-devices were obtained. The scattering properties were then used with an adaptation of the Landauer formalism to calculate an analytical expression for current and conductance. The numerical results of the IV characteristics were then briefly discussed for the graphene step and Zener barrier. A comparison between the theoretical model and experimental results shows the similarities of graphene nanoribbons and infinite sheet graphene.
description: 13 pages, 15 figures
Observation of spin-charge conversion in CVD-grown single-layer graphene
Creators: name: Ohshima, Ryo
name: Sakai, Atsushi
name: Ando, Yuichiro
name: Shinjo, Teruya
name: Kawahara, Kenji
name: Ago, Hiroki
name: Shiraishi, Masashi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Conversion of pure spin current to charge current in single-layer graphene (SLG) is investigated by using spin pumping. Large-area SLG grown by chemical vapor deposition is used for the conversion. Efficient spin accumulation in SLG by spin pumping enables observing an electromotive force produced by the inverse spin Hall effect (ISHE) of SLG. The spin Hall angle of SLG is estimated to be 6.1*10-7. The observed ISHE in SLG is ascribed to its non-negligible spin-orbit interaction in SLG.
description: 21 pages, 3 figures
The problematic label of suicide gesture: Alternatives for clinical research and practice.
Creators: name: Daniel, Stephanie S.
name: Heilbron, Nicole
name: Compton, Jill S.
name: Goldston, David B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Historically, certain terms used to describe psychopathology have evolved over time due to changing social and political contexts. This paper explores the importance of a clear and consistent language for characterizing suicide-related behaviors with a particular focus on the commonly used label “suicide gesture.” The historical and contemporary uses of the term are explored, and clinical, research, and training implications are discussed. Clinicians and researchers are strongly encouraged to consider discontinuing the use of the term suicide gesture in light of its associated dismissive connotations and inconsistent application in clinical practice and research. In lieu of the term suicide gesture, recommendations are made regarding an increased emphasis by clinicians and researchers on more precise descriptions of suicidal behaviors and the functional assessment of suicide-related behaviors.
Calculating and visualizing the density of states for simple quantum mechanical systems
Creators: name: Mulhall, Declan
name: Moelter, Matthew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a graphical approach to understanding the degeneracy, density of states, and cumulative state number for some simple quantum systems. By taking advantage of basic computing operations we define a straightforward procedure for determining the relationship between discrete quantum energy levels and the corresponding density of states and cumulative level number. The density of states for a particle in a rigid box of various shapes and dimensions is examined and graphed. It is seen that the dimension of the box, rather than its shape, is the most important feature. In addition, we look at the density of states for a multi-particle system of identical bosons built on the single-particle spectra of those boxes. A simple model is used to explain how the $N$-particle density of states arises from the single particle system it is based on.
description: 24 pages, 11 figures
Rectangular symmetries for coefficients of symmetric functions
Creators: name: Briand, Emmanuel
name: Orellana, Rosa
name: Rosas, Mercedes
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We show that some of the main structural constants for symmetric functions (Littlewood-Richardson coefficients, Kronecker coefficients, plethysm coefficients, and the Kostka--Foulkes polynomials) share symmetries related to the operations of taking complements with respect to rectangles and adding rectangles.
description: 16 pages
Vielfalt und Einheit der Heiligen Schrift aus patristischer Sicht
Creators: name: Van Nieuwenhove, Rik
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 38 Nr. 1 (2002): Concilium: Internationale Zeitschrift für Theologie, Band 38, Heft 1
Evidence-based strategies improve assessment of pediatric bipolar disorder by community practitioners.
Creators: name: Jenkins, Melissa M.
name: Washburn, Jason J.
name: Youngstrom, Jennifer Kogos
name: Youngstrom, Eric A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: The misdiagnosis of pediatric bipolar disorder (PBD) has become a major public health concern. Would available evidence-based assessment (EBA) strategies help improve diagnostic accuracy, and are clinicians willing to consider these strategies in practice? The purpose of the present study was to document the extent to which using an EBA decision tool--a probability nomogram--improves the interpretation of family history and test data by clinicians and to examine the acceptability of the nomogram technique to clinicians. Over 600 clinicians across the US and Canada attending continuing education seminars were trained to use the nomogram. Participants estimated the probability that a youth in a clinical vignette had bipolar disorder, first using clinical judgment and then using the nomogram. Brief training of clinicians (less than 30 minutes) in using the nomogram for assessing PBD improved diagnostic accuracy, consistency, and agreement. The majority of clinicians endorsed using the nomogram in practice. EBA decision aids, such as the nomogram, may lead to a significant decrease in overdiagnosis and help clinicians detect true cases of PBD.
A novel determination of the $B_c$ lifetime
Creators: name: Aebischer, Jason
name: Grinstein, Benjamín
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: To reduce the current theory uncertainties a novel way to determine the $B_c$ lifetime, $τ_{B_c}$, is proposed. Taking the difference of the $B_c$, and $B$ and $D$ meson decay rates eliminates the leading contributions from the calculation, which exhibit large scale and scheme dependence. The uncertainties in the proposed determination of $τ_{B_c}$ are analyzed and improvements are proposed. The method predicts a value of $τ_{B_c}$ in tension with the experimental determination. Several explanations are considered, including underestimation of uncertainties, duality violation and new physics. We discuss quantitative evidence that our method is vitiated by duality violation in the large mass OPE used to calculate nonleptonic decay rates of $B$ and $D$ mesons.
description: 8 pages, 3 figures, matches published version
Flow equations for spectral functions at finite external momenta
Creators: name: Tripolt, Ralf-Arno
name: von Smekal, Lorenz
name: Wambach, Jochen
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we study the spatial-momentum dependence of mesonic spectral functions obtained from the quark-meson model using a recently proposed method to calculate real-time observables at finite temperature and density from the Functional Renormalization Group. This non-perturbative method is thermodynamically consistent, symmetry-preserving and based on an analytic continuation from imaginary to real time on the level of the flow equations for 2-point functions. Results on the spatial-momentum dependence of the pion and sigma spectral function are presented at different temperatures and densities, in particular near the critical endpoint in the phase diagram of the quark-meson model.
description: 13 pages, 7 figures
Twenty-Five Years of Dissipative Solitons
Creators: name: Christov, Ivan C.
name: Yu, Zongxin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In 1995, C. I. Christov and M. G. Velarde introduced the concept of a dissipative soliton in a long-wave thin-film equation [Physica D 86, 323--347]. In the 25 years since, the subject has blossomed to include many related phenomena. The focus of this short note is to survey the conceptual influence of the concept of a "production-dissipation (input-output) energy balance" that they identified. Our recent results on nonlinear periodic waves as dissipative solitons (in a model equation for a ferrofluid interface in a parallel-flow rectangular geometry subject to an inhomogeneous magnetic field) have shown that the classical concept also applies to nonlocalized (specifically, spatially periodic) nonlinear coherent structures. Thus, we revisit the so-called KdV-KSV equation studied by C. I. Christov and M. G. Velarde to demonstrate that it also possesses spatially periodic dissipative soliton solutions. These coherent structures arise when the linearly unstable flat film state evolves to sufficiently large amplitude. The linear instability is then arrested when the nonlinearity saturates, leading to permanent traveling waves. Although the two model equations considered in this short note feature the same prototypical linear long-wave instability mechanism, along with similar linear dispersion, their nonlinearities are fundamentally different. These nonlinear terms set the shape and eventual dynamics of the nonlinear periodic waves. Intriguingly, the nonintegrable equations discussed in this note also exhibit multiperiodic nonlinear wave solutions, akin to the polycnoidal waves discussed by J. P. Boyd in the context of the completely integrable KdV equation.
description: 8 pages, 3 figures, REVTeX, submitted to the proceedings of the Thirteenth Conference of the Euro-American Consortium for Promoting the Application of Mathematics in Technical and Natural Sciences
Interacting massless infraparticles in 1+1 dimensions
Creators: name: Dybalski, Wojciech
name: Mund, Jens
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Buchholz' scattering theory of waves in two dimensional massless models suggests a natural definition of a scattering amplitude. We compute such a scattering amplitude for charged infraparticles that live in the GNS representation of the 2$d$ massless scalar free field and obtain a non-trivial result. It turns out that these excitations exchange phases, depending on their charges, when they collide.
description: 14 pages
Large time-dependent coercivity and resistivity modification under sustained voltage application in a Pt/Co/AlOx/Pt junction
Creators: name: Brink, Arno van den
name: van der Heijden, Mark A. J.
name: Swagten, Henk J. M.
name: Koopmans, Bert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The coercivity and resistivity of a Pt/Co/AlOx/Pt junction are measured under sustained voltage application. High bias voltages of either polarity are determined to cause a strongly enhanced, reversible coercivity modification compared to low voltages. Time-resolved measurements show a logarithmic development of the coercive field in this regime, which continues over a period as long as thirty minutes. Furthermore, the resistance of the dielectric barrier is found to change strongly and reversibly on the same time scale, suggesting an electrochemical process is taking place within the dielectric. It is argued that the migration of oxygen vacancies at the magnet/oxide interface could explain both the resistance variation and the enhanced electric field effect at high voltages. A thermal fluctuation aftereffect model is applied to account for the observed logarithmic dependence.
description: Accepted for publication in Journal of Applied Physics special issue Conference Proceedings of the 59th annual Magnetism and Magnetic Materials conference (November 2014), tentatively scheduled for May 2015
Critical parameters for singular perturbation reductions of chemical reaction networks
Creators: name: Feliu, Elisenda
name: Walcher, Sebastian
name: Wiuf, Carsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: We are concerned with polynomial ordinary differential systems that arise from modelling chemical reaction networks. For such systems, which may be of high dimension and may depend on many parameters, it is frequently of interest to obtain a reduction of dimension in certain parameter ranges. Singular perturbation theory, as initiated by Tikhonov and Fenichel, provides a path toward such reductions. In the present paper we discuss parameter values that lead to singular perturbation reductions (so-called Tikhonov-Fenichel parameter values, or TFPVs). An algorithmic approach is known, but it is feasible for small dimensions only. Here we characterize conditions for classes of reaction networks for which TFPVs arise by turning off reactions (by setting rate parameters to zero), or by removing certain species (which relates to the classical quasi-steady state approach to model reduction). In particular, we obtain definitive results for the class of complex balanced reaction networks (of deficiency zero) and first order reaction networks.
Numerical models of blackbody-dominated gamma-ray bursts -- II. Emission properties
Creators: name: Cuesta-Martínez, Carlos F.
name: Aloy, Miguel-Ángel
name: Mimica, Petar
name: Thöne, Christina C.
name: de Ugarte-Postigo, Antonio
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blackbody-dominated (BBD) gamma-ray bursts (GRBs) are events characterized by long durations and the presence of a significant thermal component following the prompt emission, as well as by the absence of a typical afterglow. GRB 101225A is the most prominent member of this class. A plausible progenitor system for it and for BBD-GRBs is the merger a neutron star and a helium core of an evolved, massive star. Using relativistic hydrodynamic simulations we model the propagation of ultrarelativistic jets through the environments created by such mergers. In a previous paper we showed that the thermal emission in BBD-GRBs is linked to the interaction of an ultrarelativistic jet with the ejected envelope of the secondary star of the binary. Here we focus on explaining the emission properties of BBD-GRBs computing the whole radiative signature (both thermal and non-thermal) of the jet dynamical evolution. The non-thermal emission of the forward shock of the jet is dominant during the early phases of the evolution, when that shock is moderately relativistic. Our models do not produce a classical afterglow because the quick deceleration of the jet results primarily from the mass entrainment in the beam, and not from the process of plowing mass from the external medium in front of the GRB ejecta. The contribution of the reverse shock is of the same magnitude than that of the forward shock during the first 80 min after the GRB. Later, it quickly fades because the jet/environment interaction chocks the ultrarelativistic jet beam and effectively dumps the reverse shock. In agreement with observations, we obtain rather flat light curves during the first 2 d after the GRB, and a spectral evolution consistent with the observed reddening of the system.
description: 14 pages, 14 figures (12 in color), accepted for publication in MNRAS. A high-resolution version of the figures of this manuscript and of the companion paper (http://arxiv.org/abs/1408.1305) can be found at http://www.uv.es/camap/camap_content_10.html
Challenges in Preventing Heart Disease in Hispanics: Early Lessons Learned from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL)
Creators: name: Schneiderman, Neil
name: Heiss, Gerardo
name: Chirinos, Diana A.
name: Avilés-Santa, M. Larissa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The challenge of preventing cardiovascular disease (CVD) in US Hispanics depends upon being able to understand and communicate about the diversity within this population in terms of environmental exposures, health behaviors, socio-cultural experiences and genetic background to CVD risk factor profiles and disease burdens. Recent publications from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) launched by the National Institutes of Health (NIH) have begun to accomplish this task. In this article we review some of the HCHS/SOL findings concerning cardiometabolic and other CVD risk factors and relate them to the need for increased access to health care and attention to lifestyle variables including nutrition. A major challenge that needs to be accomplished is to alert our lawmakers, public health officials, health care providers and the Hispanic population at large about how to lighten the CVD risk factor and disease burdens now carried by our Hispanic population.
Connecting Community With Campus to Address Cancer Health Disparities: A Community Grants Program Model
Creators: name: Manning, Michelle
name: Vines, Anissa I.
name: Teal, Randall
name: Meyer, Crystal
name: Godley, Paul
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: With growing interest in the CBPR approach to cancer health disparities research, mechanisms are needed to support adherence to its principles. The Carolina Community Network (CCN), 1 of 25 Community Network Programs funded by the National Cancer Institute (NCI), developed a model for providing funds to community-based organizations.
Tweedie hidden Markov random field and the expectation-method of moments and maximisation algorithm for brain MR image segmentation
Creators: name: Zitouni, Mouna
name: Afif, Masmoudi
name: Zribi, Mourad
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: In this paper, a segmentation algorithm of brain magnetic resonance imaging is elaborated. The proposed method rests on Tweedie hidden Markov random field processing and the Expectation Method of moments and Maximisation algorithm. This new type of stochastic process stands for a Markov Random Field whose state sequence cannot be observed directly and whose spatial information is encoded through the mutual influences of neighbouring sites. Tweedie models are a special case of exponential dispersion models with power mean variance. In image processing problems as medical image segmentation no work has been recorded in terms of demonstrating the applicability of the Tweedie models with hidden Markov random field and different Tweedie parameters values p. Hence, our research stands for the pioneering work aiming at proving the efficiency of the Tweedie models in brain image segmentation. Expectation- Method of moments and Maximisation algorithm results from the combination of both EM (Expectation-Maximisation) algorithm and the method of moments. The algorithm was validated on synthetic data and tested on real images. The basic merit of our proposed algorithm of segmentation lies in its ability to identify the brain tumour. Experiments using Tweedie hidden Markov random field showed that the proposed method produces more intuitive results with a recognition rate of 93.72. In fact, the experimental results highlighted that our approach outperforms other approaches that are reported in literature.
Superconducting pairing mediated by spin-fluctuations from first principles
Creators: name: Essenberger, F.
name: Sanna, A.
name: Linscheid, A.
name: Tandetzky, F.
name: Profeta, G.
name: Cudazzo, P.
name: Gross, E. K. U.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present the derivation of an ab-initio and parameter free effective electron-electron interaction that goes beyond the screened RPA and accounts for superconducting pairing driven by spin-fluctuations. The construction is based on many body perturbation theory and relies on the approximation of the exchange-correlation part of the electronic self-energy within time dependent density functional theory. This effective interaction is included in an exchange correlation kernel for superconducting density functional theory, in order to achieve a completely parameter free superconducting gap equation. First results from applying the new functional to a simplified two-band electron gas model are consistent with experiments.
description: 13 pages, 3 figures
The Monitoring, Logging, and Alarm system for the Cherenkov Telescope Array
Creators: name: Costa, Alessandro
name: Munari, Kevin
name: Incardona, Federico
name: Bruno, Pietro
name: Germani, Stefano
name: Grillo, Alessandro
name: Oya, Igor
name: Sciacca, Eva
name: Becciani, Ugo
name: Raciti, Mario
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the current development of the Monitoring, Logging and Alarm subsystems in the framework of the Array Control and Data Acquisition System (ACADA) for the Cherenkov Telescope Array (CTA). The Monitoring System (MON) is the subsystem responsible for monitoring and logging the overall array (at each of the CTA sites) through the acquisition of monitoring and logging information from the array elements. The MON allows us to perform a systematic approach to fault detection and diagnosis supporting corrective and predictive maintenance to minimize the downtime of the system. We present a unified tool for monitoring data items from the telescopes and other devices deployed at the CTA array sites. Data are immediately available for the operator interface and quick-look quality checks and stored for later detailed inspection. The Array Alarm System (AAS) is the subsystem that provides the service that gathers, filters, exposes, and persists alarms raised by both the ACADA processes and the array elements supervised by the ACADA system. It collects alarms from the telescopes, the array calibration, the environmental monitoring instruments and the ACADA systems. The AAS sub-system also creates new alarms based on the analysis and correlation of the system software logs and the status of the system hardware providing the filter mechanisms for all the alarms. Data from the alarm system are then sent to the operator via the human-machine interface.
Community-Based HIV Clinical Trials: An Integrated Approach in Underserved, Rural, Minority Communities
Creators: name: Miles, Margaret Shandor
name: Banks, Bahby
name: Isler, Malika Roman
name: Corbie-Smith, Giselle
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Although racial and ethnic minorities have disproportionately high rates of HIV infection, these groups are underrepresented in HIV-related clinical trials. This illustrates the need for more innovation in attempts to engage underrepresented populations in calls for interdisciplinary and translational research.
Modulation and natural valued quiver of an algebra
Creators: name: Li, Fang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16G10, 16G20

description: The concept of modulation is generalized to pseudo-modulation and its subclasses including pre-modulation, generalized modulation and regular modulation. The motivation is to define the valued analogue of natural quiver, called {\em natural valued quiver}, of an artinian algebra so as to correspond to its valued Ext-quiver when this algebra is not $k$-splitting over the field $k$. Moreover, we illustrate the relation between the valued Ext-quiver and the natural valued quiver. The interesting fact we find is that the representation categories of a pseudo-modulation and of a pre-modulation are equivalent respectively to that of a tensor algebra of $\mathcal A$-path type and of a generalized path algebra. Their examples are given respectively from two kinds of artinian hereditary algebras. Furthermore, the isomorphism theorem is given for normal generalized path algebras with finite (acyclic) quivers and normal pre-modulations. Four examples of pseudo-modulations are given: (i) group species in mutation theory as a semi-normal generalized modulation; (ii) viewing a path algebra with loops as a pre-modulation with valued quiver which has not loops; (iii) differential pseudo-modulation and its relation with differential tensor algebras; (iv) a pseudo-modulation is considered as a free graded category.
description: 23 pages
Curriculum Development to Increase Minority Research Literacy for HIV Prevention Research: A CBPR Approach
Creators: name: Powell, Noah
name: Underwood, Rosalee
name: Isler, Malika Roman
name: Eley, Natalie
name: Batten, Kendra
name: Mathews, Allison
name: Rogers, Randy
name: MacQueen, Kathleen M.
name: Brown, Andre L.
name: White, Caressa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Minority engagement in HIV prevention research can improve the process and products of research. Using community-based participatory research (CBPR) to develop capacity-building tools can promote community awareness of HIV prevention, clinical research, and community roles in research.
Global higher integrability for minimisers of convex obstacle problems with (p,q)-growth
Creators: name: Koch, Lukas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We prove global $W^{1,q}(Ω,\mathbb{R}^N)$-regularity for minimisers of $\mathscr{F}(u)=\int_ΩF(x,\mathrm{D}u)\mathrm{d} x$ satisfying $u\geq ψ$ for a given Sobolev obstacle $ψ$. $W^{1,q}(Ω,\mathbb{R}^m)$ regularity is also proven for minimisers of the associated relaxed functional. Our main assumptions on $F(x,z)$ are a uniform $α$-Hölder continuity assumption in $x$ and natural $(p,q)$-growth conditions in $z$ with $q<\frac{(n+α)p}{n}$. In the autonomous case $F\equiv F(z)$ we can improve the gap to $q<\frac{np}{n-1}$, a result new even in the unconstrained case.
description: updated a small number of references. arXiv admin note: text overlap with arXiv:2010.15766
Applying Cognitive Interviewing to Inform Measurement of Partnership Readiness: A New Approach to Strengthening Community–Academic Research
Creators: name: Corbie-Smith, Giselle
name: Durr, April
name: Weiner, Bryan J.
name: Kim, Mimi
name: Teal, Randall
name: Rohweder, Catherine L.
name: Enga, Zoe
name: Diehl, Sandra J.
name: Dave, Gaurav
name: Isler, Malika Roman
name: Wynn, Mysha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Partnerships between academic and community-based organizations can richly inform the research process and speed translation of findings. While immense potential exists to co-conduct research, a better understanding of how to create and sustain equitable relationships between entities with different organizational goals, structures, resources, and expectations is needed.
Heavy metals in a light white dwarf: Abundances of the metal-rich, extremely low-mass GALEX J1717+6757
Creators: name: Hermes, J. J.
name: Gaensicke, B. T.
name: Koester, D.
name: Bours, M. C. P.
name: Townsley, D. M.
name: Farihi, J.
name: Marsh, T. R.
name: Littlefair, Stuart
name: Dhillon, V. S.
name: Gianninas, A.
name: Breedt, E.
name: Raddi, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using the Hubble Space Telescope, we detail the first abundance analysis enabled by far-ultraviolet spectroscopy of a low-mass (~0.19 Msun) white dwarf (WD), GALEX J1717+6757, which is in a 5.9-hr binary with a fainter, more-massive companion. We see absorption from nine metals, including roughly solar abundances of Ca, Fe, Ti, and P. We detect a significantly sub-solar abundance of C, and put upper limits on N and O that are also markedly sub-solar. Updated diffusion calculations indicate that all metals should settle out of the atmosphere of this 14,900 K, log(g) = 5.67 WD in the absence of radiative forces in less than 20 yr, orders of magnitude faster than the cooling age of hundreds of Myr. We demonstrate that ongoing accretion of rocky material that is often the cause of atmospheric metals in isolated, more massive WDs is unlikely to explain the observed abundances in GALEX J1717+6757. Using new radiative levitation calculations, we determine that radiative forces can counteract diffusion and support many but not all of the elements present in the atmosphere of this WD; radiative levitation cannot, on its own, explain all of the observed abundance patterns, and additional mechanisms such as rotational mixing may be required. Finally, we detect both primary and secondary eclipses using ULTRACAM high-speed photometry, which we use to constrain the low-mass WD radius and rotation rate as well as update the ephemeris from the discovery observations of this WD+WD binary.
description: 10 pages, 5 figures, accepted for publication in MNRAS
Quantization Conditions and the Double Copy
Creators: name: Emond, William T.
name: Moynihan, Nathan
name: Wei, Liangyu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate Wilson loop observables as products of eikonal Wilson lines given in terms of on-shell scattering amplitudes. Using these, we derive the Dirac-Schwinger-Zwanziger quantization condition and its gravitational (Taub-NUT) double copy, where we find a relativistic generalisation of the usual non-relativistic gravitational quantization condition. We also compute the relativistic Wilson loop for an anyon-anyon system, obtaining a similar relativistic generalisation of the Aharonov-Bohm phase for gravitational anyons.
description: Revised text and refined some arguments, added references
Case Study of Effects of Mineral N Fertilization Amounts on Water Productivity in Rainfed Winter Rapeseed Cultivation on a Sandy Soil in Brandenburg (Germany) over Three Years
Creators: name: Drastig, Katrin
name: Kreidenweis, Ulrich
name: Meyer-Aurich, Andreas
name: Ammon, Christian
name: Prochnow, Annette
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: winter oilseed rape
subject: water use
subject: nitrogen
subject: water-storage capacity
subject: AgroHyd Farmmodel
subject: 690 Bau von Gebäuden

description: Detailed knowledge about farm management practices and related hydrological processes on water productivity is required to substantially increase the productivity of precipitation water use in agriculture. With this in mind, the effect of the nitrogen (N) fertilization level on water productivity of winter oilseed rape (Brassica napus L.) was analyzed using a modeling approach and field measurements. In this first study of interception loss and water productivity in winter oilseed rape, the crop was cultivated in a field experiment on a sandy soil in Brandenburg (Germany) under five nitrogen fertilization treatments with 0, 60, 120, 180, and 240 kg mineral N ha−1 a−1. Based on data from three vegetation periods the water flows and the mass-based water productivity of seeds were calculated on a daily basis with the AgroHyd Farmmodel modeling software. As recommended from the recently developed guidelines of the FAO on water use in agriculture, the method water productivity was applied and uncertainties associated with the calculations were assessed. Economic profit-based water productivity (WPprofit) was calculated considering the costs of fertilization and the optimal level of N fertilization, which was determined based on a quadratic crop yield response function. Mean water productivity of seeds varied from 1.16 kg m−3 for the unfertilized control sample to 2.00 kg m−3 under the highest fertilization rate. N fertilization had a clearly positive effect on WPprofit. However, fertilizer application rates above 120 kg N ha−1 a−1 led to only marginal increases in yields. Water productivity of seeds under the highest fertilization rate was only insignificantly higher than under medium application rates. The optimum N level for the maximal WPprofit identified here was higher with 216 kg N ha−1 a−1. The conclusion is that further research is needed to investigate the interaction between fertilization and other farm management practices.
On Douglas warped product metrics
Creators: name: Chávez, Newton Mayer Solórzano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We study the new warped metric proposed by P. Marcal and Z. Shen. We obtain the differential equation of such metrics with vanishing Douglas curvature. By solving this equation, we obtain all Douglas warped product metrics. We show that Landsberg and Berwald warped product metrics are equivalent. We classify Douglas Ricci-flat metrics. Examples are included.
description: Corrections on Theorem 2 and corollaries
The National Cancer Institute’s Community Networks Program Initiative to Reduce Cancer Health Disparities: Outcomes and Lessons Learned
Creators: name: Espinoza, Paula
name: Salmon Kaur, Judith
name: Thompson, Beti
name: Coe, Kathryn
name: Vines, Anissa I.
name: Scarinci, Isabel
name: Meade, Cathy
name: Brandt, Heather M.
name: Ramirez, Amelie
name: Baquet, Claudia
name: Mandelblatt, Jeanne
name: Braun, Kathryn L.
name: Dignan, Mark
name: Ma, Grace X.
name: Campbell, Janis E.
name: Stewart, Susan
name: Henry-Tillman, Ronda
name: James, Aimee
name: Hargreaves, Margaret
name: Viswanath, K.
name: Park Tanjasiri, Sora
name: Buchwald, Dedra S.
name: Berry-Bobovski, Lisa
name: Cooper, Leslie C.
name: Blumenthal, Daniel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: We describe reach, partnerships, products, benefits, and lessons learned of the 25 Community Network Programs (CNPs) that applied community-based participatory research (CBPR) to reduce cancer health disparities.
Animal Models of Hemophilia
Creators: name: Herzog, Roland W.
name: Sabatino, Denise E.
name: Merricks, Elizabeth
name: Nichols, Timothy C.
name: Monahan, Paul E.
name: Bellinger, Dwight A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The X-linked bleeding disorder hemophilia is caused by mutations in coagulation factor VIII (hemophilia A) or factor IX (hemophilia B). Unless prophylactic treatment is provided, patients with severe disease (less than 1% clotting activity) typically experience frequent spontaneous bleeds. Current treatment is largely based on intravenous infusion of recombinant or plasma-derived coagulation factor concentrate. More effective factor products are being developed. Moreover, gene therapies for sustained correction of hemophilia are showing much promise in pre-clinical studies and in clinical trials. These advances in molecular medicine heavily depend on availability of well-characterized small and large animal models of hemophilia, primarily hemophilia mice and dogs. Experiments in these animals represent important early and intermediate steps of translational research aimed at development of better and safer treatments for hemophilia, such a protein and gene therapies or immune tolerance protocols. While murine models are excellent for studies of large groups of animals using genetically defined strains, canine models are important for testing scale-up and for longer-term follow-up as well as for studies that require larger blood volumes.
The Complex Molecular Biology of Amyotrophic Lateral Sclerosis (ALS)
Creators: name: Redler, Rachel L.
name: Dokholyan, Nikolay V.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Amyotrophic lateral sclerosis (ALS) is an adult-onset neurodegenerative disorder that causes selective death of motor neurons followed by paralysis and death. A subset of ALS cases is caused by mutations in the gene for Cu, Zn superoxide dismutase (SOD1), which impart a toxic gain of function to this antioxidant enzyme. This neurotoxic property is widely believed to stem from an increased propensity to misfold and aggregate caused by decreased stability of the native homodimer or a tendency to lose stabilizing posttranslational modifications. Study of the molecular mechanisms of SOD1-related ALS has revealed a complex array of interconnected pathological processes, including glutamate excitotoxicity, dysregulation of neurotrophic factors and axon guidance proteins, axonal transport defects, mitochondrial dysfunction, deficient protein quality control, and aberrant RNA processing. Many of these pathologies are directly exacerbated by misfolded and aggregated SOD1 and/or cytosolic calcium overload, suggesting the primacy of these events in disease etiology and their potential as targets for therapeutic intervention.
The Ubiquitin–Proteasome System and Cardiovascular Disease
Creators: name: Powell, Saul R.
name: Patterson, Cam
name: Wang, Xuejun
name: Herrmann, Joerg
name: Lerman, Amir
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Over the past decade, the role of the ubiquitin–proteasome system (UPS) has been the subject of numerous studies to elucidate its role in cardiovascular physiology and pathophysiology. There have been many advances in this field including the use of proteomics to achieve a better understanding of how the cardiac proteasome is regulated. Moreover, improved methods for the assessment of UPS function and the development of genetic models to study the role of the UPS have led to the realization that often the function of this system deviates from the norm in many cardiovascular pathologies. Hence, dysfunction has been described in atherosclerosis, familial cardiac proteinopathies, idiopathic dilated cardiomyopathies, and myocardial ischemia. This has led to numerous studies of the ubiquitin protein (E3) ligases and their roles in cardiac physiology and pathophysiology. This has also led to the controversial proposition of treating atherosclerosis, cardiac hypertrophy, and myocardial ischemia with proteasome inhibitors. Furthering our knowledge of this system may help in the development of new UPS-based therapeutic modalities for mitigation of cardiovascular disease.