cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A resource efficient approach for quantum and classical simulations of gauge theories in particle physics
Creators: name: Haase, Jan F.
name: Dellantonio, Luca
name: Celi, Alessio
name: Paulson, Danny
name: Kan, Angus
name: Jansen, Karl
name: Muschik, Christine A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Gauge theories establish the standard model of particle physics, and lattice gauge theory (LGT) calculations employing Markov Chain Monte Carlo (MCMC) methods have been pivotal in our understanding of fundamental interactions. The present limitations of MCMC techniques may be overcome by Hamiltonian-based simulations on classical or quantum devices, which further provide the potential to address questions that lay beyond the capabilities of the current approaches. However, for continuous gauge groups, Hamiltonian-based formulations involve infinite-dimensional gauge degrees of freedom that can solely be handled by truncation. Current truncation schemes require dramatically increasing computational resources at small values of the bare couplings, where magnetic field effects become important. Such limitation precludes one from `taking the continuous limit' while working with finite resources. To overcome this limitation, we provide a resource-efficient protocol to simulate LGTs with continuous gauge groups in the Hamiltonian formulation. Our new method allows for calculations at arbitrary values of the bare coupling and lattice spacing. The approach consists of the combination of a Hilbert space truncation with a regularization of the gauge group, which permits an efficient description of the magnetically-dominated regime. We focus here on Abelian gauge theories and use $2+1$ dimensional quantum electrodynamics as a benchmark example to demonstrate this efficient framework to achieve the continuum limit in LGTs. This possibility is a key requirement to make quantitative predictions at the field theory level and offers the long-term perspective to utilise quantum simulations to compute physically meaningful quantities in regimes that are precluded to quantum Monte Carlo.
description: 25 pages, 9 figures, journal version
An efficient deception architecture for cloud-based virtual networks
Creators: name: Qasem, Mohammad
name: Almohri, Hussain M. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Emerging deceptive systems present a new promise for the uprising security problems in cloud-based virtual networks, especially those operated by small and medium enterprises. The main goal of deceptive systems is to form a layer of defensive nodes in an Internet-accessible cloud-based virtual network to distract and deceive malicious clients. While numerous approaches provide distinct models for developing decisive systems, misery digraphs present a promising decisive model for distracting powerful remote intrusions. Misery digraphs can delay access to targets deep in a cloud-based virtual network. A central challenge to the theory of misery digraphs is verifying their applicability in prominent cloud computing platforms as well as measuring the efficiency of networks that adapt them. Thus, architectural support is needed that can be realized with long-term support technologies and can be deployed for large networks. This work presents and analyzes a high-throughput architecture for misery digraphs, embarking on implementation details and performance analysis. Full implementation of the architecture in Amazon Web Services imposes modest performance delays in the request processing, while highly delaying stealth intrusions in the network.
Avaliação benefício-custo de sistemas de dessalinização de água em comunidades rurais cearenses
Creators: name: Campos, Roberio Telmo
name: Campos, Roberio Telmo
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Economic Evaluation. Desalination. Potable Water.

description: This study aims to make the economic assessment of five Desalination Systems by Reverse Osmosis (RO) that are used to generate fresh water for human consumption in rural communities in the Ceará State. The data was gathered from primary source by questionnaire applied to governmental organizations. The method used was the analysis of investment taking into account shadow prices. We concluded that due to the inexistence of any good practices for the desalination management some equipment resulted in negative financing return when considering the effective consumption, particularly those of 400 and 600 liter/hour. In addition, they generated inefficiency regarding to technical support, turning impossible better improvement of the system performance, thus leading to insecure water supplies and unsatisfied demand. Given the limitations imposed by the managers, low production and system failures, which resulted in constant systems’ interruption, the effective demand of fresh water was restricted to the half of the working capacity of the system.
Coordinate-Update Algorithms can Efficiently Detect Infeasible Optimization Problems
Creators: name: Paeng, Jinhee
name: Park, Jisun
name: Ryu, Ernest K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Coordinate update/descent algorithms are widely used in large-scale optimization due to their low per-iteration cost and scalability, but their behavior on infeasible or misspecified problems has not been much studied compared to the algorithms that use full updates. For coordinate-update methods to be as widely adopted to the extent so that they can be used as engines of general-purpose solvers, it is necessary to also understand their behavior under pathological problem instances. In this work, we show that the normalized iterates of randomized coordinate-update fixed-point iterations (RC-FPI) converge to the infimal displacement vector and use this result to design an efficient infeasibility detection method. We then extend the analysis to the setup where the coordinates are defined by non-orthonormal basis using the Friedrichs angle and then apply the machinery to decentralized optimization problems.
As aposentadorias e pensões e a concentração dos rendimentos domiciliares per capita no Brasil e na sua área rural: 1981 a 2003.
Creators: name: Ferreira, Carlos Roberto
name: Souza, Solange De Cassia Inforzato De
name: Ferreira, Carlos Roberto
name: Souza, Solange De Cassia Inforzato De
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Rural Social Welfare
subject: Retirements and pensions
subject: Concentration of income.

description: This work has as objective to analyze the participation and the contribution of the household income “retirements and pensions” for the inequality of the distribution of the per capita household income in Brazil and Rural Brazil, in the period from 1981 to 2003. For that, it revises the literature about concentration of income and social welfare in the country, and it uses the Gini index components decomposition methodology: revenue of the main work, revenue of other works, retirements and pensions, donations, rent revenues and other revenues (interests, dividends, etc.). It stands out, in the results, the growing participation of the retirements and pensions and in the 1990`s in relation to the previous decade, with larger intensity in rural Brazil, explained by the social and economic policies of the period. The contribution of that portion of household income for the concentration of income is significant to Brazil in 9 of the 18 analyzed years, and to rural Brazil, starting from the decade of 1990.
Nanina Guyer und Michaela Oberhofer (Hrsg.); FIKTION KONGO. Kunstwelten zwischen Geschichte und Gegenwart
Creators: name: Berchtold, Celina
Publisher: name: Journal für Kunstgeschichte
Year: 2024

description: Rezension zu: Nanina Guyer und Michaela Oberhofer (Hrsg.); FIKTION KONGO. Kunstwelten zwischen Geschichte und Gegenwart (Ausst.-Kat. Museum Rietberg, Zürich, 22.11.2019– 15.03.2020); Zürich: Scheidegger & Spiess 2019; 328 S., 413 farb. u. 16 s/w-Abb.; ISBN 978-3-85881-643-6
description: Journal für Kunstgeschichte, Bd. 24 Nr. 4 (2020): Journal für Kunstgeschichte
Maximum Force and Naked Singularities in Higher Dimensions
Creators: name: Barrow, John D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the existence of maximum forces in 3+1 dimensional spacetimes and show that the existence of a mass-independent maximum force does not occur in general relativity in spaces of more than three dimensions. Instead, the maximum force increases with the masses, M, of merging objects as M to the power (N-3)/(N-2) and allows unbounded gravitational forces to occur. This suggests that naked singularities can arise in more than three dimensions because they are unprotected by a maximum force at the horizon surface. This creates a new perspective on the expectation of naked singularities in higher dimensions.
description: 6 pages, no figures. Essay prepared for the Gravity Research Foundation
Participação e cultura política: os conselhos municipais de desenvolvimento rural sustentável no território Portal da Amazônia
Creators: name: Olival, Alexandre De Azevedo
name: Spexoto, Andrezza Alves
name: Rodrigues, Jose Alesando
name: Olival, Alexandre De Azevedo
name: Spexoto, Andrezza Alves
name: Rodrigues, Jose Alesando
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: sustainable development
subject: council
subject: participation
subject: politic culture.

description: In spite of being one of the most important institutional innovations in the Brazilian politics, the profusion of municipal administration councils doesn’t guarantee in itself an evolution in the Brazilian democracy. The aim of the present study was to evaluate the profile of the municipal councils of sustainable rural development and their counselors, identifying possible differences between the civil society representatives and the public power. For that were applied questionnaires containing open and closed questions for 100 counselors of 12 of the 16 municipal districts that form the Amazon Portal territory. The results indicate that the counselors are formed by local elite, mainly in relation to political culture, having big differences among the civil society representatives and the public power. The dates could indicate an unequal correlation of forces inside of these deliberation spaces. The results indicate although that great part of the counselors still possesses an advisory profile and doesn’t play an important aid in the formulation of municipals development plans, having little participation of the population in the deliberations. As conclusion, the research emphasizes the need to implement strategies for larger involvement of the population and for the importance of the counselors’ training for the participative process.
A deep, narrow J-band search for proto-galactic Lyman Alpha emission at redshifts z~9
Creators: name: Willis, J. P.
name: Courbin, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a deep, narrow J-band search for proto--galactic Lyman Alpha emission at redshifts z~9. We combine an exceptionally deep image of the Hubble Deep Field South, obtained using a narrow band filter centred on the wavelength 1.187 microns using the VLT/ISAAC facility, with existing deep, broad band images covering optical to near infrared wavelengths. We search for z~9 Lyman Alpha emitting galaxies displaying a significant narrow band excess relative to the Js-band that are undetected at optical wavelengths. We detect no sources consistent with this criterion to the 90% point source flux limit of the NB image, F_{NB} = 3.28 x 10^{-18} ergs/s/cm2. The survey selection function indicates that we have sampled a volume of approximately 340 h^{-3} Mpc^3 to a Lyman Alpha emission luminosity of 10^{43} h^{-2} ergs/s. We conclude by considering the potential implications for the physics of the high--redshift universe.
description: 11 pages, accepted MNRAS. Please note that the automatic postscript generation may result in a corrupted postscript file. Please use ftp://astroftp.phys.uvic.ca/pub/jwillis/jwillis_zen1.ps.gz to obtain an uncorrupted version
title: Solidarität statt Rassismus in Chemnitz
title: Transformative Krisenbearbeitung in reflexiven Kollaborationen
titleType: Subtitle
Creators: name: Liebscher, Stephan
name: Corvino, Juliana
name: Hetmank, Lisa
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: #wirsindmehr
subject: Krise
subject: Solidarische Lebensweise
subject: Transformative Forschung
subject: Postmigrantische Gesellschaft
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::322 Beziehungen des Staats zu organisierten Gruppen

description: Der Artikel lotet die Chancen und Limitationen von Kollaborationen zwischen lokalen zivilgesellschaftlichen Akteurinnen und Akteuren sowie Forschenden im sächsischen Chemnitz aus. Ein besonderes Augenmerk liegt auf der Analyse und Gestaltung solidarischer Formen des städtischen Zusammenlebens, die im Nachgang der rassistischen Ausschreitungen im Spätsommer 2018 sowie als Alternative zu „Neuen Rechten Bewegungen“ entwickelt wurden. In experimentellen Räumen und Praktiken können spontane solidarische Reaktionen auf offenen Rassismus auch jenseits von medialer Aufmerksamkeit aufgegriffen werden und über krisenhafte Momente hinaus potenziell Zusammenschlüsse von Akteurinnen und Akteure schaffen, die sich für ein solidarisches Miteinander einsetzen. Anhand eines Lehrforschungsprojektes wird das gemeinsame Arbeiten an Kritik der lokalen Krisenaufarbeitung, solidarischen Visionen und konkreten Handlungspfaden illustriert und reflektiert. Mit diesen Überlegungen aus der transformativen Forschung tragen wir zur Diskussion um die Verzahnung von angewandter und kritischer Geographie bei.
Dynamical density functional theory: phase separation in a cavity and the influence of symmetry
Creators: name: Archer, A. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Consider a fluid composed of two species of particles, where the interparticle pair potentials $u_{11} = u_{22} \neq u_{12}$. On confining an equal number of particles from each species in a cavity, one finds that the average one body density profiles of each species are constrained to be exactly the same due to the symmetry, when both external cavity potentials are the same. For a binary fluid of Brownian particles interacting via repulsive Gaussian pair potentials that exhibits phase separation, we study the dynamics of the fluid one body density profiles on breaking the symmetry of the external potentials, using the dynamical density functional theory of Marconi and Tarazona [{\it J. Chem. Phys.}, {\bf 110}, 8032 (1999)]. On breaking the symmetry we see that the fluid one body density profiles can then show the phase separation that is present.
description: 7 pages, 4 figures. Accepted for the proceedings of the Liquid Matter conference 2005, to be publication in J. Phys.: Condens. Matter
The Vela Pulsar in the Ultraviolet
Creators: name: Romani, Roger W.
name: Kargaltsev, Oleg
name: Pavlov, George G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe time-tagged observations of the Vela pulsar (PSR B0833-45) with the HST STIS MAMA-UV detectors. Using an optimal extraction technique, we obtain a NUV light curve and crude FUV phase-resolved spectra. The pulse is dominated by complex non-thermal emission at all phases. We obtain approximate spectral indices for the brightest pulse components, relate these to pulsations observed in other wavebands, and constrain the thermal surface emission from the neutron star. An upper limit on the Rayleigh-Jeans component at UV pulse minimum suggests a rather low mean surface temperature T_eff^\infty <4.6 x 10^5 (d_{300}/R_{14.2})^2 K. If confirmed by improved phase-resolved spectroscopy, this observation has significant impact on our understanding of neutron star interiors.
description: 14 pages, 7 figures, to appear in the Astrophysical Journal
Anomalous Planar Hall Effect in Two-Dimensional Trigonal Crystals
Creators: name: Battilomo, Raffaele
name: Scopigno, Niccoló
name: Ortix, Carmine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The planar Hall effect (PHE) is the appearance of an in-plane transverse voltage in the presence of coplanar electric and magnetic fields. Its hallmark is a characteristic $π$-periodic, i.e. even under a magnetic field reversal, angular dependence with the transverse voltage that exactly vanishes when the electric and magnetic fields are aligned. Here we demonstrate that in two-dimensional trigonal crystals Zeeman-induced non-trivial Berry curvature effects yield a previously unknown anomalous PHE that is odd in the magnetic field and independent of the relative angle with the driving electric field. We further show that when an additional mirror symmetry forces the transverse voltage to vanish in the linear response regime, the anomalous PHE can occur as a second-order response at both zero and twice the frequency of the applied electric field. We demonstrate that this non-linear PHE possesses an antisymmetric quantum contribution that originates from a Zeeman-induced Berry curvature dipole.
description: 6 pages, 3 figures
Additional file 1 of The adaptive designs CONSORT extension (ACE) statement: a checklist with explanation and elaboration guideline for reporting randomised trials that use an adaptive design
Creators: name: Dimairo, Munyaradzi
name: Pallmann, Philip
name: Wason, James
name: Todd, Susan
name: Jaki, Thomas
name: Julious, Steven A.
name: Mander, Adrian P.
name: Weir, Christopher J.
name: Koenig, Franz
name: Walton, Marc K.
name: Nicholl, Jon P.
name: Coates, Elizabeth
name: Biggs, Katie
name: Hamasaki, Toshimitsu
name: Proschan, Michael A.
name: Scott, John A.
name: Ando, Yuki
name: Hind, Daniel
name: Altman, Douglas G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Additional file 1: Appendix A. Main ACE checklist available to download.
Current-induced metallic behavior in Pr$_{0.5}$Ca$_{0.5}$MnO$_3$ thin films: competition between Joule heating and nonlinear conduction mechanism
Creators: name: Padhan, P.
name: Prellier, W.
name: Simon, Ch.
name: Budhani, R. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thin films of Pr0.5Ca0.5MnO3 manganites exhibiting charge/orbital-ordered properties with colossal magnetoresistance have been synthesized by the pulsed laser deposition technique on both (100)-SrTiO3 and (100)-LaAlO3 substrates. The effects of current-induced metallic-behavior of the films are investigated as a function of the temperature and the magnetic field. Calculations based on a heat transfer model across the substrate, and our resistivity measurements reveal effects of Joule heating on charge transport over certain ranges of temperatures and magnetic fields. Our results also indicate that a nonlinear conduction, which cannot be explained by homogeneous Joule heating of the film, is observed when the material is less resistive (10-2 W.cm). The origin of this behavior is explained with a model based on local thermal instabilities associated with phase-separation mechanism and a change in the long range charge-ordered state.
description: To be published in Phys. Rev. B
Additional file 2 of Evaluation of a social determinants of health screening questionnaire and workflow pilot within an adult ambulatory clinic
Creators: name: Berkowitz, Rachel L.
name: Bui, Linh
name: Shen, Zijun
name: Pressman, Alice
name: Moreno, Maria
name: Brown, Stephanie
name: Nilon, Anne
name: Miller-Rosales, Chris
name: Azar, Kristen M. J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2. Response to SDOH survey and SDOH identified need across 2020 eligible patient sociodemographic characteristics, by any domain and by specific domain.
The diameter of randomly twisted hypercubes
Creators: name: Aragão, Lucas
name: Collares, Maurício
name: Dahia, Gabriel
name: Marciano, João Pedro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: The $n$-dimensional random twisted hypercube $\mathbf{G}_n$ is constructed recursively by taking two instances of $\mathbf{G}_{n-1}$, with any joint distribution, and adding a random perfect matching between their vertex sets. Benjamini, Dikstein, Gross, and Zhukovskii showed that its diameter is $O(n\log \log \log n/\log \log n)$ with high probability and at least ${(n - 1)/ \log_2 n}$. We improve their upper bound by showing that $$\operatorname{diam}(\mathbf{G}_n) = \big(1 + o(1)\big) \frac{n}{\log_2 n}$$ with high probability.
description: 6 pages, minor changes to address helpful referee comments, content matches version appearing in European Journal of Combinatorics
Eficácia e evolução dos indicadores socioeconômicos de famílias beneficiadas pelo programa de combate à pobreza rural /Projeto São José no Estado do Ceará
Creators: name: Khan, Ahmad Saeed
name: Silva, Lucia Maria Ramos
name: Khan, Ahmad Saeed
name: Silva, Lucia Maria Ramos
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Efficacy
subject: welfare
subject: Ceará

description: The objective of this study was to verify the evolution of economic indicators of the families, living in 27 communities, benefited by Rural Poverty Reduction Program in the state of Ceará. For this purpose, the years of 1998 (base year) and 2001 were selected. The information was obtained from the beneficiaries of projects such as water supply, rural electrification, agriculture mechanization and land reform. The results allowed to conclude that there was an improvement in living conditions, acquisition of durable goods and income level of population benefited by the Program. Also, comparison between per capita income of these families and rural population of the state was made.
The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
Creators: name: Martin, D. Christopher
name: Fanson, James
name: Schiminovich, David
name: Morrissey, Patrick
name: Friedman, Peter G.
name: Barlow, Tom A.
name: Conrow, Tim
name: Grange, Robert
name: Jelinsky, Patrick N.
name: Milliard, Bruno
name: Siegmund, Oswald H. W.
name: Bianchi, Luciana
name: Byun, Yong-Ik
name: Donas, Jose
name: Forster, Karl
name: Heckman, Timothy M.
name: Lee, Young-Wook
name: Madore, Barry F.
name: Malina, Roger F.
name: Neff, Susan G.
name: Rich, R. Michael
name: Small, Todd
name: Szalay, Alex S.
name: Wyder, Ted K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We give an overview of the Galaxy Evolution Explorer (GALEX), a NASA Explorer Mission launched on April 28, 2003. GALEX is performing the first space UV sky-survey, including imaging and grism surveys in two bands (1350-1750 Angstroms and 1750-2750 Angstroms). The surveys include an all-sky imaging survey (m[AB] ~ 20.5), a medium imaging survey of 1000 square degrees (m[AB] ~ 23), a deep imaging survey of 100 square degrees (m[AB] ~ 25), and a nearby galaxy survey. Spectroscopic grism surveys (R=100-200) are underway with various depths and sky coverage. Many targets overlap existing or planned surveys. We will use the measured UV properties of local galaxies, along with corollary observations, to calibrate the UV-global star formation rate relationship in local galaxies. We will apply this calibration to distant galaxies discovered in the deep imaging and spectroscopic surveys to map the history of star formation in the universe over the redshift range 0 < z < 1.5, and probe the physical drivers of star formation in galaxies. The GALEX mission includes a Guest Investigator program supporting the wide variety of programs made possible by the first UV sky survey.
description: This paper will be published as part of the Galaxy Evolution Explorer (GALEX) Astrophysical Journal Letters Special Issue. Links to the full set of papers will be available at http:/www.galex.caltech.edu/PUBLICATIONS/ after November 22, 2004
Mixed-type Distance Shrinkage and Selection for Clustering via Kernel Metric Learning
Creators: name: Ghashti, Jesse S.
name: Thompson, John R. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences
subject: I.5.3; G.3; I.6.6
subject: 62G07, 65D10

description: Distance-based clustering and classification are widely used in various fields to group mixed numeric and categorical data. In many algorithms, a predefined distance measurement is used to cluster data points based on their dissimilarity. While there exist numerous distance-based measures for data with pure numerical attributes and several ordered and unordered categorical metrics, an efficient and accurate distance for mixed-type data that utilizes the continuous and discrete properties simulatenously is an open problem. Many metrics convert numerical attributes to categorical ones or vice versa. They handle the data points as a single attribute type or calculate a distance between each attribute separately and add them up. We propose a metric called KDSUM that uses mixed kernels to measure dissimilarity, with cross-validated optimal bandwidth selection. We demonstrate that KDSUM is a shrinkage method from existing mixed-type metrics to a uniform dissimilarity metric, and improves clustering accuracy when utilized in existing distance-based clustering algorithms on simulated and real-world datasets containing continuous-only, categorical-only, and mixed-type data.
description: 38 pages, 3 tables, 8 figures
The electrical double layer for a fully asymmetric electrolyte around a spherical colloid: an integral equation study
Creators: name: Guerrero-Garcia, G. Ivan
name: Gonzalez-Tovar, Enrique
name: Lozada-Cassou, Marcelo
name: Guevara-Rodriguez, F. de J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The hypernetted chain/mean spherical approximation (HNC/MSA) integral equation is obtained and solved numerically for a totally asymmetric primitive model electrolyte around a spherical macroparticle. The ensuing radial distribution functions show a very good agreement when compared to our Monte Carlo and molecular dynamics simulations for spherical geometry and with respect to previous anisotropic reference HNC calculations in the planar limit. We report an analysis of the potential vs charge relationship, radial distribution functions, mean electrostatic potential and cumulative reduced charge for representative cases of 1:1 and 2:2 salts with a size asymmetry ratio of 2. Our results are collated with those of the Modified Gouy-Chapman (MGC) and unequal radius Modified Gouy-Chapman (URMGC) theories and with those of HNC/MSA in the restricted primitive model (RPM) to assess the importance of size asymmetry effects. One of the most striking characteristics found is that,\textit{contrary to the general belief}, away from the point of zero charge the properties of an asymmetric electrical double layer (EDL) are not those corresponding to a symmetric electrolyte with the size and charge of the counterion, i.e. \textit{counterions do not always dominate}. This behavior suggests the existence of a new phenomenology in the EDL that genuinely belongs to a more realistic size-asymmetric model where steric correlations are taken into account consistently. Such novel features can not be described by traditional mean field theories like MGC, URMGC or even by enhanced formalisms, like HNC/MSA, if they are based on the RPM.
description: 29 pages, 13 figures
Additional file 3 of Evaluation of a social determinants of health screening questionnaire and workflow pilot within an adult ambulatory clinic
Creators: name: Berkowitz, Rachel L.
name: Bui, Linh
name: Shen, Zijun
name: Pressman, Alice
name: Moreno, Maria
name: Brown, Stephanie
name: Nilon, Anne
name: Miller-Rosales, Chris
name: Azar, Kristen M. J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 3. Length of visit by 2020 eligible patient sociodemographic characteristics.
Self Provers and $Σ_1$ Sentences
Creators: name: Goris, Evan
name: Joosten, Joost J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: This paper from 2012 is the second in a series of three papers. All three papers deal with interpretability logics and related matters. In the first paper a construction method was exposed to obtain models of these logics. Using this method, we obtained some completeness results, some already known, and some new. In this paper, we will set the construction method to work to obtain more results. First, the modal completeness of the logic ${\textbf{IL}}({\sf M})$ is proved using the construction method. This is not a new result, but by using our new proof we can obtain new results. Among these new results are some admissible rules for ${\textbf{IL}}({\sf M})$ and ${\textbf{GL}}$. Moreover, the new proof will be used to classify all the essentially $Δ_1$ and also all the essentially $Σ_1$ formulas of ${\textbf{IL}}({\sf M})$. Closely related to essentially $Σ_1$ sentences are the so-called \emph{self provers}. A self-prover is a formula $φ$ which implies its own provability, that is $φ\to \Box φ$. Each formula $φ$ will generate a self prover $φ\wedge \Box φ$. We will use the construction method to characterize those sentences of ${\textbf{GL}}$ that generate a self prover that is trivial in the sense that it is $Σ_1$.
Varstrometry Selected Radio-Loud Candidates of Dual and Off-Nucleus Quasars at Sub-kpc Scales
Creators: name: Wang, Hao-Chen
name: Wang, Jun-Xian
name: Gu, Min-Feng
name: Liao, Mai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Dual super massive black holes at sub-kpc to kpc scales, the product of galaxy mergers, are progenitors of eventually coalescing binary SMBHs. If both or one of the dual SMBHs are accreting, they may appear as dual AGNs or off-nucleus AGNs. Studying such systems is essential to learn the dynamical evolution of binary SMBHs as well as the process of galaxy merging. Recently a novel astrometry-based method named varstrometry has been put forward to search for dual SMBHs at high redshift, as the unsynchronized flux variability of dual AGNs (or off-nucleus AGNs) will cause astrometric jitters detectable by Gaia without spatially resolving them. Based on Gaia varstrometry we select a rare sample of 5 radio loud quasars with clear Gaia astrometric jitters. With e-MERLIN observations we have revealed a single compact radio source for each of them. Remarkably all but one exhibit clear Gaia-radio offsets of ~ 7 -- 40 mas. The observed Gaia jitters appear consistent with the expected values. These detected Gaia-radio offsets suggest these candidate dual SMBHs may have projected separations as small as ~ 0.01 -- 0.1'' (~ 0.1 kpc, depending on the optical flux ratio of two SMBHs). Meanwhile, this work highlights the remarkably high efficiency of Gaia varstrometry selection of jittering sources.
description: 6 pages, 5 figures, 1 table; published in MNRAS Letters
Design and testing of additively manufactured lattice structures for musculoskeletal applications
Creators: name: Hossain, Umar
Publisher: name: Imperial College London
Year: 2020

description: Additive manufacturing (AM) methods present a new frontier in engineering, allowing the fabrication of porous lattice structures with tailored mechanical properties. AM structures can be made using bio-inert metals, creating controlled stiffness biomaterials. As bone formation is strain dependent, these AM biomaterials can be used in implants to optimise the strain in surrounding trabecular bone for peak bone formation. However, the behaviour of AM lattices varies and is subject to manufacturing constraints. The aim of this PhD was to investigate the mechanical behaviour of AM lattices, and maximise the clinical benefits of AM for musculoskeletal applications. Lattice architecture was shown to affect the anisotropy of an AM lattice biomaterial, increasing the stiffness in directions not often tested in the literature. The mechanical and morphological properties of individual struts within powder bed fusion (PBF) lattices were also shown to vary depending on the orientation of the struts to the build direction. The ultimate tensile strength of titanium alloy (Ti6Al4V) struts more than doubled when built at a low angle versus perpendicular to the build platform, and other properties were substantially lower than for the bulk material. Geometric imperfections were found for struts built at low angles. As such, a low stiffness modified stochastic lattice was designed and tested which avoided the problems found with struts built at low angles. The resulting lattice had improved stiffness isotropy and could be used for musculoskeletal applications, tuned to match the mechanical properties in local trabecular bone and enhancing bone formation.
A relevância da família como unidade de análise nos estudos sobre pluriatividade
Creators: name: Mattei, Lauro Francisco
name: Mattei, Lauro Francisco
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: pluriactivity
subject: family
subject: rurality.

description: The pluriactivity phenomenon has been more studied in Brazil in the 1990’s, when increased the papers about it in many regions of the country. The main issue related with the pluriactivity theme is the relevant unit of analyses. In according to the international literature, this article defends the idea that the family, and not the production unit, should be the north of the studies of pluriactivity in the Brazilian family farming.
When topology triggers a phase transition
Creators: name: Kastner, Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Two mathematical mechanisms, responsible for the generation of a thermodynamic singularity, are individuated. For a class of short-range, confining potentials, a topology change in some family of configuration space submanifolds is the only possible such mechanism. Two examples of systems in which the phase transition is not accompanied by a such topology change are discussed. The first one is a model with long-range interactions, namely the mean-field phi^4-model, the second example is a one-dimensional system with a non-confining potential energy function. For both these systems, the thermodynamic singularity is generated by a maximization over one variable (or one discrete index) of a smooth function, although the context in which the maximization occurs is very different.
description: Talk given at the Next-SigmaPhi conference in Kolymbari, Crete, Greece, August 13-18, 2005
Additional file 1 of Patient understanding regarding opioid use in an orthopaedic trauma surgery population: a survey study
Creators: name: Xu, Amy L.
name: Dunham, Alexandra M.
name: Enumah, Zachary O.
name: Humbyrd, Casey J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Unadjusted (univariate) odds of orthopaedic trauma surgery patient understanding regarding opioid use.
Unveiling the potential of BCN-Biphenylene monolayer as a high-performance anode material for alkali metal ion batteries: A first-principles study
Creators: name: Parida, Ajay Kumar Prakash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Inspired by a freshly synthesized two-dimensional biphenylene carbon network, which features a captivating combination of hexagonal, square, and octagonal rings, we explored a similar biphenylene network composed of boron, carbon, and nitrogen (bpn-BCN) using first-principles calculations. There are six possible phases of borocarbonitrides, which are isoelectronic to biphenylene carbon networks with a stoichiometric ratio of 1:1:1 for boron (B), carbon (C), and nitrogen (N) atoms. All possible isoelectronic structures of the BCN combination of biphenylene networks are found to be stable, according to first-principles calculations. Furthermore, we employed first-principles calculations to investigate the electrochemical properties of the most stable geometry of BCN biphenylene as a potential anode material for alkali metal (AM) ion batteries. The electronic properties of the stable phase of bpn-BCN reveal its narrow bandgap semiconductor nature. The ion diffusion calculations show a low activation barrier for Li, Na, and K of 0.65 eV, 0.26 eV, and 0.23 eV, respectively, indicating a fast charge/discharge rate. Furthermore, the theoretical capacities of the BCN biphenylene monolayer for Li (1057.33 mAh/g), Na (647.27 mAh/g), and K (465.98 mAh/g) are found to be greater than those of commercial graphite. The average open-circuit voltage for AM decreases with increasing metal ion concentrations. It falls within a reasonable range of 0.34 to 1.89 V. Our results show that the BCN biphenylene monolayer could be a promising anode material in alkali metal ion rechargeable batteries.
Agricultura familiar e programas de desenvolvimento rural no Alto Jequitinhonha
Creators: name: Ribeiro, Eduardo Magalhaes
name: Galizoni, Flavia Maria
name: Silvestre, Luiz Henrique Aparecido
name: Calixto, Juliana Sena
name: Assis, Thiago Rodrigo De Paula
name: Ayres, Eduardo Barbosa
name: Ribeiro, Eduardo Magalhaes
name: Galizoni, Flavia Maria
name: Silvestre, Luiz Henrique Aparecido
name: Calixto, Juliana Sena
name: Assis, Thiago Rodrigo De Paula
name: Ayres, Eduardo Barbosa
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: family farming
subject: rural extension
subject: rural development
subject: public programs
subject: Jequitinhonha Valley.

description: The agrarian conditions and the low relative levels of the socioeconomic indicators cause the area of the “High Jequitinhonha Valley”, in the northeast of the State of Minas Gerais, to be considered one of the most complex areas of Brazil. For this reason several governanmental administrations have recommended rural development programs. Most of these efforts, however, have not produced adequate results. This article analyzes the relationships between public programs and family farming, making a survey of the methods and results of the last three decades. It concludes that there is a need to incorporate the specificities of history, environment and culture into the rural programs. It is suggested that the programs take into consideration the experience accumulated by the regional organizations and be adjusted to the interest and culture of the local family producers.
Posterior Consistency of Semi-Supervised Regression on Graphs
Creators: name: Bertozzi, Andrea L.
name: Hosseini, Bamdad
name: Li, Hao
name: Miller, Kevin
name: Stuart, Andrew M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Graph-based semi-supervised regression (SSR) is the problem of estimating the value of a function on a weighted graph from its values (labels) on a small subset of the vertices. This paper is concerned with the consistency of SSR in the context of classification, in the setting where the labels have small noise and the underlying graph weighting is consistent with well-clustered nodes. We present a Bayesian formulation of SSR in which the weighted graph defines a Gaussian prior, using a graph Laplacian, and the labeled data defines a likelihood. We analyze the rate of contraction of the posterior measure around the ground truth in terms of parameters that quantify the small label error and inherent clustering in the graph. We obtain bounds on the rates of contraction and illustrate their sharpness through numerical experiments. The analysis also gives insight into the choice of hyperparameters that enter the definition of the prior.
Additional file 1 of Minimum accelerometer wear-time for reliable estimates of physical activity and sedentary behaviour of people receiving haemodialysis
Creators: name: Prescott, Sean
name: Traynor, Jamie P.
name: Shilliday, Ilona
name: Zanotto, Tobia
name: Rush, Robert
name: Mercer, Thomas H.
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy

description: Additional file 1: Table S1. Determination of Actigraph and ActivPAL derived PA outcome differences between days within the same condition; Table S2. Actigraph average measure ICCs for outcome variables calculated on three dialysis days; Table S3. Actigraph average measure ICCs for outcome variables calculated on four non-dialysis days; Table S4. ActivPAL average measure ICCs for outcome variables calculated on three dialysis days; Table S5. ActivPAL average measure ICCs for outcome variables calculated on four non-dialysis days; Table S6. Computed minimum wear-time requirements for Actigraph outcomes normalised to daily wear on dialysis days; Table S7. Computed minimum wear-time requirements for Actigraph outcomes normalised to daily wear on non-dialysis days; Table S8. Computed minimum wear-time requirements for ActivPAL outcomes normalised to daily wear on dialysis days; Table S9. Computed minimum wear-time requirements for ActivPAL outcomes normalised to daily wear on non-dialysis days; Table S10. Computed minimum wear-time requirements for Actigraph outcomes (not normalised to daily wear) on dialysis days; Table S11. Computed minimum wear-time requirements for Actigraph outcomes (not normalised to daily wear) on non-dialysis days; Table S12. Computed minimum wear-time requirements for ActivPAL outcomes (not normalised to daily wear) on dialysis days; Table S13. Computed minimum wear-time requirements for ActivPAL outcomes (not normalised to daily wear) on non-dialysis days.
Cascading RG Flows from New Sasaki-Einstein Manifolds
Creators: name: Herzog, C. P.
name: Ejaz, Q. J.
name: Klebanov, I. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In important recent developments, new Sasaki-Einstein spaces $Y^{p,q}$ and conformal gauge theories dual to $AdS_5\times Y^{p,q}$ have been constructed. We consider a stack of N D3-branes and M wrapped D5-branes at the apex of a cone over $Y^{p,q}$. Replacing the D-branes by their fluxes, we construct asymptotic solutions for all p and q in the form of warped products of the cone and $R^{3,1}$. We show that they describe cascading RG flows where N decreases logarithmically with the scale. The warp factor, which we determine explicitly, is a function of the radius of the cone and one of the coordinates on $Y^{p,q}$. We describe the RG cascades in the dual quiver gauge theories, and find an exact agreement between the supergravity and the field theory beta functions. We also discuss certain dibaryon operators and their dual wrapped D3-branes in the conformal case M=0.
description: 22 pages, 6 figures; v2 minor corrections; v3 refs, orbifold discussion added; v4 more refs
Simultaneous muon and reference hadron measurements in the Compressed Baryonic Matter experiment at FAIR
Creators: name: Senger, Anna
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The mission of the Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt is to explore the QCD phase diagram at high net baryon densities likely to exist in the core of neutron stars. The CBM detector system is designed to perform multi-differential measurements of hadrons and leptons in central gold-gold collisions at beam energies between 2 and 11 A GeV with unprecedented precision and statistics. In order to reduce the systematic errors of the lepton measurements, which generally suffer from a large combinatorial background, both electrons and muons will be measured with the same acceptance. Up to now, no di-muon measurements have been performed in heavy-ion collisions at beam energies below 158A GeV. The main device for electron identification, a Ring Imaging Cherenkov (RICH) detector, can be replaced by a setup comprising hadron absorbers and tracking detectors for muon measurements. In order to obtain a complete picture of the reaction, it is important to measure simultaneously leptons and hadrons. This requirement is fulfilled for the RICH, which has a low material budget, and only little affects the trajectories of hadrons on their way to the Time-of-Flight (TOF) detector. In contrast, the simultaneous measurement of muons and hadrons within the same experimental acceptance poses a substantial challenge. This article reviews the simulated performance of the CBM experiment for muon identification, together with the possibility of simultaneous hadron measurements.
description: 10 pages, 11 figures, proceedings of 8th Int. Conf. on New Frontiers of Physics 2019
On the moments of the moments of $ζ(1/2+it)$
Creators: name: Bailey, E. C.
name: Keating, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Taking $t$ at random, uniformly from $[0,T]$, we consider the $k$th moment, with respect to $t$, of the random variable corresponding to the $2β$th moment of $ζ(1/2+ix)$ over the interval $x\in(t, t+1]$, where $ζ(s)$ is the Riemann zeta function. We call these the `moments of moments' of the Riemann zeta function, and present a conjecture for their asymptotics, when $T\to\infty$, for integer $k,β$. This is motivated by comparisons with results for the moments of moments of the characteristic polynomials of random unitary matrices and is shown to follow from a conjecture for the shifted moments of $ζ(s)$ due to Conrey, Farmer, Keating, Rubinstein, and Snaith \cite{cfkrs2}. Specifically, we prove that a function which, the shifted-moment conjecture of \cite{cfkrs2} implies, is a close approximation to the moments of moments of the zeta function does satisfy the asymptotic formula that we conjecture. We motivate as well similar conjectures for the moments of moments for other families of primitive $L$-functions.
description: 18 pages, final version to appear in Journal of Number Theory