cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interview guide for the study "Information Scientists' Motivations for Research Data Sharing and Reuse"
Creators: name: Shutsko, Aliaksandra
Publisher: name: Zenodo
Year: 2023
Subjects: research data
data sharing
data reuse
motivations
gratifications
information science
interview
interview guide

description: This is the interview guide developed for the study “Information Scientists’ Motivations for Research Data Sharing and Reuse”. The interview guide was structured following the research model of the study. Accordingly, the formulation of questions was influenced by three conceptual frameworks, i.e. the Lasswell formula of communication, the U> and the SDT. First, participants were informed about the aims of the study and the structure of the interview. The interview consisted of three main thematic sections. In the first section, the questions about researcher’s background, including research and work context, were asked. The second part of the interview was dedicated to data sharing. The interviewees were asked about their experiences and expectations regarding data sharing. For example, “Have you ever shared the datasets from your studies? If so, could you please describe your experience in more detail?” The section also included questions about motives and motivations for sharing, or not sharing, research data with third parties. For example, “For what purposes have you shared your data? For what reasons have you shared your data with third parties?” The next section consisted of similar questions but focused on data reuse. In both cases, the interviewer pointed out that (s)he will distinguish between two types of research data. First, the questions related to the collected or generated datasets. After that, almost the same questions referred to other types of research data such as questionnaires, interview guidelines, code books, metadata, study protocols, analysis scripts, software codes and other types of documentation and data collection instruments. At the end of the interview, participants were invited to fill out a short survey. If desired, they could comment on the selected options. The full version of the interview guide can be found in the attached file.
The limits of the nuclear landscape explored by the relativistic continuum Hatree-Bogoliubov theory
Creators: name: Xia, X. W.
name: Lim, Y.
name: Zhao, P. W.
name: Liang, H. Z.
name: Qu, X. Y.
name: Chen, Y.
name: Liu, H.
name: Zhang, L. F.
name: Zhang, S. Q.
name: Kim, Y.
name: Meng, J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The ground-state properties of nuclei with 8 $\le$ Z $\le$ 120 from the proton drip line to the neutron drip line have been investigated using the relativistic continuum Hartree-Bogoliubov (RCHB) theory with the relativistic density functional PC-PK1. With the effects of the continuum included, there are totally 9035 nuclei predicted to be bound, which largely extends the existing nuclear landscapes predicted with other methods. The calculated binding energies, separation energies, neutron and proton Fermi surfaces, root-mean-square (rms) radii of neutron, proton, matter, and charge distributions, ground-state spins and parities are tabulated. The extension of the nuclear landscape obtained with RCHB is discussed in detail, in particular for the neutron-rich side, in comparison with the relativistic mean field calculations without pairing correlations and also other predicted landscapes. It is found that the coupling between the bound states and the continuum due to the pairing correlations plays an essential role in extending the nuclear landscape. The systematics of the separation energies, radii, densities, potentials and pairing energies of the RCHB calculations are also discussed. In addition, the alpha-decay energies and proton emitters based on the RCHB calculations are investigated.
description: 192 pages, 25 figures, Atomic Data and Nuclear Data Tables, in press
A Lower Bound on the Critical Momentum of an Impurity in a Bose-Einstein Condensate
Creators: name: Hinrichs, Benjamin
name: Lampart, Jonas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 81V73, Secondary 81Q10, 47A10

description: In the Bogoliubov-Fröhlich model, we prove that an impurity immersed in a Bose-Einstein condensate forms a stable quasi-particle when the total momentum is less than its mass times the speed of sound. The system thus exhibits superfluid behavior, as this quasi-particle does not experience friction. We do not assume any infrared or ultraviolet regularization of the model, which contains massless excitations and point-like interactions.
description: 10 pages, version accepted for publication in Comptes Rendus Math\'ematique
title: Historical Songs - Scans - RO Crate
Creators: name: VanderHart, Chanda
Publisher: name: mdwRepository
Year: 2022

description: Scans of seven historical songs (PDF) by Josef Dessauer, Ernestine de Bauduin, Anton Rubinstein and Wilhelm Taubert popular in 19th Century Vienna. Hard copies are located in the Music Collection of the Austrian National Library, and are published digitally with permission in connection with the related 30 sound recordings and the monograph Lieder & Performance in 19th Century Vienna; Concepts and Perspectives, both authored by Chanda VanderHart, PhD.
title: Historical Song Recordings - Audio Files - RO Crate
Creators: name: VanderHart, Chanda
Publisher: name: mdwRepository
Year: 2022

description: 30 audio recordings of forgotten 19th century songs on historical keyboard instruments, created in coordination with the monograph Lieder and Performance in 19th Century Vienna | Concepts and Perspectives by Chanda VanderHart, PhD.
Recording Engineer/Producer/Mixing/Editing: Georg Burdicek, Technician: Kristaps Andris Austers.
title: Humanitäre Werte der Architektur und die Verbesserung ihrer Wechselwirkung mit dem Nutzer
Creators: name: Chait, Wladimir Lwowitsch
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Architektur
subject: Benutzer
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 55
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 55
Decay of Time Correlations in Point Vortex Systems
Creators: name: Grotto, Francesco
name: Morlacchi, Silvia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamics of a large point vortex system whose initial configuration consists in uniformly distributed independent positions is investigated. Time correlations of local observables of the vortex configuration are shown to be compatible with power law decay 1/t, providing additional insight on ergodicity and mixing properties of equilibrium dynamics in point vortex models.
description: 7 pages, 4 figures; updated version with increased sample size (sampling with different numbers N of involved point vortices) and expanded discussion of previous literature
title: Zur Entwicklung von Bauproduktion und Formänderungen der Arbeit am Beispiel der BRD
Creators: name: Janssen, Jörn
Publisher: name: Bauhaus-Universität Weimar
Year: 2007
Subjects: subject: Bauwirtschaft
subject: 720

description: Wissenschaftliches Kolloquium vom 27. bis 30. Juni 1989 in Weimar an der Hochschule für Architektur und Bauwesen zum Thema: ‚Produktivkraftentwicklung und Umweltgestaltung. Sozialer und wissenschaftlich-technischer Fortschritt in ihren Auswirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit. Zum 100. Geburtstag von Hannes Meyer'
description: Produktivkraftentwicklung und Umweltgestaltung, sozialer und wissenschaftlich-technischer Fortschritt in ihren Wirkungen auf Architektur und industrielle Formgestaltung in unserer Zeit: 5. Internationales Bauhaus-Kolloquium Weimar 1989, vol. 36, 1990, no. 1-3, p. 57
description: Wissenschaftliche Zeitschrift der Hochschule für Architektur und Bauwesen Weimar, vol. 36, 1990, no. 1-3, p. 57
Study "Information Scientists' Motivations for Research Data Sharing and Reuse"
Creators: name: Shutsko, Aliaksandra
Publisher: name: Zenodo
Year: 2023
Subjects: research data
data sharing
data reuse
motivations
gratifications
information science

description: This is a project page of the study "Information Scientists' Motivations for Research Data Sharing and Reuse". The page contains study-level metadata. The current study is an exploratory case study with eleven information scientists. The goal of the study was to examine the motivations and sought gratifications leading information science researchers to share and to reuse research data. Research data are both, datasets and supplementary materials such as interview guides or questionnaires. The theoretical backgrounds of this study are the Lasswell Formula of Communication, the Uses and Gratifications Theory, and the Self-determination Theory. This study utilizes a qualitative research design complemented by a quantitative research design. The data collection process in this study can be divided in two parts: 1) semi-structured interviews and 2) a small poll at the end of an interview. As one of the first studies investigating research data sharing and reuse behavior among German information scientists, current research provides a better understanding of research data sharing and reuse practices and suggests possible solutions to facilitate researchers’ engagement. For more information about study design und results, please read the article "Information Scientists' Motivations for Research Data Sharing and Reuse" by Shutsko and Stock (2023). In addition to the metadata, the following research data are available as independent uploads: Interview guide Anonymized interview transcripts Codebook with results from the thematic analysis Questionnaire for the poll Poll results
The mass and angular momentum of reconstructed metric perturbations
Creators: name: van de Meent, Maarten
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We prove a key result regarding the mass and angular momentum content of linear vacuum perturbations of the Kerr metric obtained through the formalism developed by Chrzarnowski, Cohen, and Kegeles (CCK). More precisely we prove that the Abbott-Deser mass and angular momentum integrals of any such perturbation vanish, when that perturbation was obtained from a regular Fourier mode of the Hertz potential. As a corollary we obtain a generalization of previous results on the completion of the `no string' radiation gauge metric perturbation generated by a point particle. We find that for any bound orbit around a Kerr black hole, the mass and angular momentum perturbations completing the CCK metric are simply the energy and angular momentum of the particle "outside" the orbit and vanish "inside" the orbit.
description: Version accepted be CQG
Einstein static universe from GUP
Creators: name: Atazadeh, K.
name: Darabi, F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the existence and stability of the Einstein static universe under the Generalized Uncertainty Principle (GUP) effects. We show that this solution in the presence of perfect fluid with a minimal length is cyclically stable around a center equilibrium point. By taking linear homogeneous perturbations, we find that the scale factor of Einstein static universe for closed deformed isotropic and homogeneous FLRW universe depends on the GUP coupling parameter $α$. Thus, in the model by GUP effects, our universe can stay at the Einstein static state past-eternally, which means that the big bang singularity might be resolved successfully by an emergent scenario.
description: 10 pages, 3 figures, 5 tables, references added, some corrections added
Direct-reading instruments for aerosols: A review for occupational health and safety professionals part 2: Applications
Creators: name: Sheehan, Maura J.
name: Vosburgh, Donna J. H.
name: O’Shaughnessy, Patrick T.
name: Park, Jae Hong
name: Sotelo, Cathy
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Direct reading instruments (DRIs) for aerosols have been used in industrial hygiene practice for many years, but their potential has not been fully realized by many occupational health and safety professionals. Although some DRIs quantify other metrics, this article will primarily focus on DRIs that measure aerosol number, size, or mass. This review addresses three applications of aerosol DRIs that occupational health and safety professionals can use to discern, characterize, and document exposure conditions and resolve aerosol-related problems in the workplace. The most common application of aerosol DRIs is the evaluation of engineering controls. Examples are provided for many types of workplaces and situations including construction, agriculture, mining, conventional manufacturing, advanced manufacturing (nanoparticle technology and additive manufacturing), and non-industrial sites. Aerosol DRIs can help identify the effectiveness of existing controls and, as needed, develop new strategies to reduce potential aerosol exposures. Aerosol concentration mapping (ACM) using DRI data can focus attention on emission sources in the workplace spatially illustrate the effectiveness of controls and constructively convey concerns to management and workers. Examples and good practices of ACM are included. Video Exposure Monitoring (VEM) is another useful technique in which video photography is synced with the concentration output of an aerosol DRI. This combination allows the occupational health and safety professional to see what tasks, environmental situations, and/or worker actions contribute to aerosol concentration and potential exposure. VEM can help identify factors responsible for temporal variations in concentration. VEM can assist with training, engage workers, convince managers about necessary remedial actions, and provide for continuous improvement of the workplace environment. Although using DRIs for control evaluation, ACM and VEM can be time-consuming, the resulting information can provide useful data to prompt needed action by employers and employees. Other barriers to adoption include privacy and security issues in some worksites. This review seeks to provide information so occupational health and safety professionals can better understand and effectively use these powerful applications of aerosol DRIs.
Direct-reading instruments for aerosols: A review for occupational health and safety professionals part 2: Applications
Creators: name: Sheehan, Maura J.
name: Vosburgh, Donna J. H.
name: O’Shaughnessy, Patrick T.
name: Park, Jae Hong
name: Sotelo, Cathy
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Direct reading instruments (DRIs) for aerosols have been used in industrial hygiene practice for many years, but their potential has not been fully realized by many occupational health and safety professionals. Although some DRIs quantify other metrics, this article will primarily focus on DRIs that measure aerosol number, size, or mass. This review addresses three applications of aerosol DRIs that occupational health and safety professionals can use to discern, characterize, and document exposure conditions and resolve aerosol related problems in the workplace. The most common application of aerosol DRIs is the evaluation of engineering controls. Examples are provided for many types of workplaces and situations including construction, agriculture, mining, conventional manufacturing, advanced manufacturing (nanoparticle technology and additive manufacturing) and non-industrial sites. Aerosol DRIs can help identify the effectiveness of existing controls and as needed, develop new strategies to reduce potential aerosol exposures. Aerosol concentration mapping (ACM) using DRI data can focus attention on emission sources in the workplace, spatially illustrate the effectiveness of controls and constructively convey concerns to management and workers. Examples and good practices of ACM are included. Video Exposure Monitoring (VEM) is another useful technique in which video photography is synced with the concentration output of an aerosol DRI. This combination allows the occupational health and safety professional to see what tasks, environmental situations and/or worker actions contribute to the aerosol concentration and potential exposure. VEM can help identify factors responsible for temporal variations in concentration. VEM can assist training, engage workers, convince managers about necessary remedial actions and provide for continuous improvement of the workplace environment. Although using DRIs for control evaluation, ACM and VEM can be time-consuming, the resulting information can provide useful data to prompt needed action by employers and employees. Other barriers to adoption include privacy and security issues in some worksites. This review seeks to provide information so occupational health and safety professionals can better understand and effectively use these powerful applications of aerosol DRIs.
Berezinskii-Kosterlitz-Thouless Transition and the Haldane Conjecture: Highlights of the Physics Nobel Prize 2016
Creators: name: Bietenholz, Wolfgang
name: Gerber, Urs
Publisher: name: arXiv
Year: 2016
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The 2016 Physics Nobel Prize honors a variety of discoveries related to topological phases and phase transitions. Here we sketch two exciting facets: the groundbreaking works by John Kosterlitz and David Thouless on phase transitions of infinite order, and by Duncan Haldane on the energy gaps in quantum spin chains. These insights came as surprises in the 1970s and 1980s, respectively, and they have both initiated new fields of research in theoretical and experimental physics.
description: 26 pages, 10 figures, minor corrections in Section 3, one reference added
Likelihood Ratio Tests for Lorenz Dominance
Creators: name: Chang, Shen-Da
name: Cheng, Philip E.
name: Liou, Michelle
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: In testing hypotheses pertaining to Lorenz dominance (LD), researchers have examined second- and third-order stochastic dominance using empirical Lorenz processes and integrated stochastic processes with the aid of bootstrap analysis. Among these topics, analysis of third-order stochastic dominance (TSD) based on the notion of risk aversion has been examined using crossing (generalized) Lorenz curves. These facts motivated the present study to characterize distribution pairs displaying the TSD without second-order (generalized Lorenz) dominance. It further motivated the development of likelihood ratio (LR) goodness-of-fit tests for examining the respective hypotheses of the LD, crossing (generalized) Lorenz curves, and TSD through approximate Chi-squared distributions. The proposed LR tests were assessed using simulated distributions, and applied to examine the COVID-19 regional death counts of bivariate samples collected by the World Health Organization between March 2020 and February 2021.
Free-fermion descriptions of parafermion chains and string-net models
Creators: name: Meichanetzidis, Konstantinos
name: Turner, Christopher J.
name: Farjami, Ashk
name: Papić, Zlatko
name: Pachos, Jiannis K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological phases of matter remain a focus of interest due to their unique properties -- fractionalisation, ground state degeneracy, and exotic excitations. While some of these properties can occur in systems of free fermions, their emergence is generally associated with interactions between particles. Here we quantify the role of interactions in general classes of topological states of matter in all spatial dimensions, including parafermion chains and string-net models. Using the interaction distance [Nat. Commun. 8, 14926 (2017)], we measure the distinguishability of states of these models from those of free fermions. We find that certain topological states can be exactly described by free fermions, while others saturate the maximum possible interaction distance. Our work opens the door to understanding the complexity of topological models and to applying new types of fermionisation procedures to describe their low-energy physics.
description: 10 pages, 10 figures
Particle acceleration model for the broadband baseline spectrum of the Crab nebula
Creators: name: Fraschetti, Federico
name: Pohl, Martin
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We develop a simple one-zone model of the steady-state Crab nebula spectrum encompassing both the radio/soft $X$-ray and the GeV/multi-TeV observations. By solving the transport equation for GeV-TeV electrons injected at the wind termination shock as a log-parabola momentum distribution and evolved via energy losses, we determine analytically the resulting differential energy spectrum of photons. We find an impressive agreement with the observed spectrum of synchrotron emission, and the synchrotron self-Compton component reproduces the previously unexplained broad $200$-GeV peak that matches the Fermi/LAT data beyond $1$ GeV with the MAGIC data. We determine the parameters of the single log-parabola electron injection distribution, in contrast with multiple broken power-law electron spectra proposed in the literature. The resulting photon differential spectrum provides a natural interpretation of the deviation from power-law customarily fit with empirical multiple broken power-laws. Our model can be applied to the radio-to-multi-TeV spectrum of a variety of astrophysical outflows, including pulsar wind nebulae and supernova remnants, as well as to interplanetary shocks.
description: 9 pages, 7 figures. MNRAS, in press
Prethermalization at Low Temperature: the Scent of Long-Range Order
Creators: name: Alba, Vincenzo
name: Fagotti, Maurizio
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-equilibrium time evolution in isolated many-body quantum systems generally results in thermalization. However, the relaxation process can be very slow, and quasi-stationary non-thermal plateaux are often observed at intermediate times. The paradigmatic example is a quantum quench in an integrable model with weak integrability breaking; for a long time, the state can not escape the constraints imposed by the approximate integrability. We unveil a new mechanism of prethermalization, based on the presence of a symmetry of the pre-quench Hamiltonian, which is spontaneously broken at zero temperature and is explicitly broken by the post-quench Hamiltonian. The typical time scale of the phenomenon is proportional to the thermal correlation length of the initial state, which diverges as the temperature is lowered. We show that the prethermal quasi-stationary state can be approximated by a mixed state that violates cluster decomposition property. We consider two examples: the transverse-field Ising chain, where the full time evolution is computed analytically, and the (non integrable) ANNNI model, which is investigated numerically.
description: 6 pages, 2 figures, accepted for publication in PRL
Improving Text Classification by Shrinkage in a Hierarchy of Classes
Creators: name: McCallum, Andrew
name: Rosenfeld, Ronald
name: Mitchell, Thomas
name: Ng, Andrew Y
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: When documents are organized in a large number of topic categories, the categories are often arranged in a hierarchy. The U.S. patent database and Yahoo are two examples. This paper shows that the accuracy of a naive Bayes text classifier can be significantly improved by taking advantage of a hierarchy of classes. We adopt an established statistical technique called shrinkage that smooths parameter estimates of a data-sparse child with its parent in order to obtain more robust parameter estimates. The approach is also employed in deleted interpolation, a technique for smoothing n-grams in language modeling for speech recognition. Our method scales well to large data sets, with numerous categories in large hierarchies. Experimental results on three real-world data sets from UseNet, Yahoo, and corporate web pages show improved performance, with a reduction in error up to 29% over the traditional at classifier.
Gradient-Based Multiobjective Optimization with Uncertainties
Creators: name: Peitz, Sebastian
name: Dellnitz, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this article we develop a gradient-based algorithm for the solution of multiobjective optimization problems with uncertainties. To this end, an additional condition is derived for the descent direction in order to account for inaccuracies in the gradients and then incorporated in a subdivison algorithm for the computation of global solutions to multiobjective optimization problems. Convergence to a superset of the Pareto set is proved and an upper bound for the maximal distance to the set of substationary points is given. Besides the applicability to problems with uncertainties, the algorithm is developed with the intention to use it in combination with model order reduction techniques in order to efficiently solve PDE-constrained multiobjective optimization problems.
description: 26 pages, 10 figures
Exploring the graduate school experiences of African immigrant-origin students at historically white institutions in the United States
Creators: name: Ogali-Frederic, Nheoma Dawn
Publisher: name: No Publisher Supplied
Year: 2023

description: Driven by exponential growth in migration from Africa, Black immigrants and their U.S.-born offspring comprise roughly one in five or 21% of the entire Black population in the U.S. (Tamir & Anderson, 2022). This population growth has led to increased enrollment in higher education and furthered the diversity of Black students on U.S. college campuses (Massey et al., 2007). Although a growing population, the existing literature on the higher education experiences of Black African immigrants is limited (George Mwangi & English, 2017; George Mwangi & Fries-Britt, 2015). In this growing field of study, few have solely focused on the graduate school experiences of this population (George Mwangi & English, 2017). This qualitative study addressed this gap by examining the graduate school experiences of African immigrant-origin students at historically white institutions (HWIs) in the New York metro area. Guided by intersectionality as a theoretical perspective, phenomenology as a strategy of inquiry and Culturally Engaging Campus Environments (Museus, 2014) as a theoretical framework, this study explored the critical experiences of African immigrant-origin students in graduate school. Data from semi-structured interviews with ten graduate school alums highlights seven essential experiences African immigrants navigate at HWIs and how their intersecting identities and institutional environments coalesced to inform those experiences. The seven themes are: (a) navigating challenges, (b) finding and creating support communities, (c) experiences with faculty and staff, (d) evolving identities, (e) racialized experiences within HWIs, (f) academic experiences, and (g) parental influence. This study offers important implications and recommendations for higher education research, practice, and policy to better support African immigrant-origin students in U.S. higher education.
Testing lowered isothermal models with direct N-body simulations of globular clusters - II: Multimass models
Creators: name: Peuten, Miklos
name: Zocchi, Alice
name: Gieles, Mark
name: Hénault-Brunet, Vincent
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Lowered isothermal models, such as the multimass Michie-King models, have been successful in describing observational data of globular clusters. In this study we assess whether such models are able to describe the phase space properties of evolutionary $N$-body models. We compare the multimass models as implemented in (Gieles \& Zocchi) to $N$-body models of star clusters with different retention fractions for the black holes and neutron stars evolving in a tidal field. We find that multimass models successfully reproduce the density and velocity dispersion profiles of the different mass components in all evolutionary phases and for different remnants retention. We further use these results to study the evolution of global model parameters. We find that over the lifetime of clusters, radial anisotropy gradually evolves from the low-mass to the high-mass components and we identify features in the properties of observable stars that are indicative of the presence of stellar-mass black holes. We find that the model velocity scale depends on mass as $m^{-δ}$, with $δ\simeq0.5$ for almost all models, but the dependence of central velocity dispersion on $m$ can be shallower, depending on the dark remnant content, and agrees well with that of the $N$-body models. The reported model parameters, and correlations amongst them, can be used as theoretical priors when fitting these types of mass models to observational data.
description: 28 pages, 22 figures, published in MNRAS
The q-dependent detrended cross-correlation analysis of stock market
Creators: name: Zhao, Longfeng
name: Li, Wei
name: Fenu, Andrea
name: Podobnik, Boris
name: Wang, Yougui
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: The properties of q-dependent cross-correlation matrices of stock market have been analyzed by using the random matrix theory and complex network. The correlation structures of the fluctuations at different magnitudes have unique properties. The cross-correlations among small fluctuations are much stronger than those among large fluctuations. The large and small fluctuations are dominated by different groups of stocks. We use complex network representation to study these q-dependent matrices and discover some new identities. By utilizing those q-dependent correlation-based networks, we are able to construct some portfolio by those most independent stocks which consistently perform the best. The optimal multifractal order for portfolio optimization is approximately $q=2$. These results have deepened our understanding about the collective behaviors of the complex financial system.
description: 25 pages, 16 figures
Discrete-to-continuous transition in quantum phase estimation
Creators: name: Rzadkowski, W.
name: Demkowicz-Dobrzanski, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the problem of quantum phase estimation where the set of allowed phases forms a discrete $N$ element subset of the whole $[0,2π]$ interval, $φ_n = 2πn/N$, $n=0,\dots N-1$ and study the discrete-to-continuous transition $N\rightarrow\infty$ for various cost functions as well as the mutual information. We also analyze the relation between the problems of phase discrimination and estimation by considering a step cost functions of a given width $σ$ around the true estimated value. We show that in general a direct application of the theory of covariant measurements for a discrete subgroup of the $U(1)$ group leads to suboptimal strategies due to an implicit requirement of estimating only the phases that appear in the prior distribution. We develop the theory of sub-covariant measurements to remedy this situation and demonstrate truly optimal estimation strategies when performing transition from a discrete to the continuous phase estimation regime.
description: v2: Discussion of mutual information and general Bayesian cost function added, revised structure; v3: Minor issues fixed
Shorter gate sequences for quantum computing by mixing unitaries
Creators: name: Campbell, Earl
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fault-tolerant quantum computers compose elements of a discrete gate set in order to approximate a target unitary. The problem of minimising the number of gates is known as gate-synthesis. The approximation error is a form of coherent noise, which can be significantly more damaging than comparable incoherent noise. We show how mixing over different gate sequences can convert this coherent noise into an incoherent form. As measured by diamond distance, the post-mixing noise is quadratically smaller than before mixing, with no additional resource cost. Equivalently, we can use a shorter gate sequence to achieve the same precision as unitary gate-synthesis, with a factor 1/2 reduction for a broad class of problems.
description: Author's final copy
Convergent Star Products for Projective Limits of Hilbert Spaces
Creators: name: Schötz, Matthias
name: Waldmann, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Given a locally convex vector space with a topology induced by Hilbert seminorms and a continuous bilinear form on it we construct a topology on its symmetric algebra such that the usual star product of exponential type becomes continuous. Many properties of the resulting locally convex algebra are explained. We compare this approach to various other discussions of convergent star products in finite and infinite dimensions. We pay special attention to the case of a Hilbert space and to nuclear spaces.
description: 34 pages, typos fixed
Chiral Splitting and $\mathcal N = 4$ Einstein--Yang--Mills Tree Amplitudes in 4d
Creators: name: Roehrig, Kai A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a world-sheet formula for all tree level scattering amplitudes, in all trace sectors, of four dimensional $\mathcal{N} \leq 4$ supersymmetric Einstein-Yang-Mills theory, based on the refined scattering equations. This generalizes previously known formulas for all-trace purely bosonic, or supersymmetric single-trace amplitudes. We find this formula by applying a new chiral splitting formula for all CHY Pfaffians in 4d, into two determinants, of positive and negative helicity respectively. The splitting of CHY Pfaffians is shown to be a special case of the splitting of $T\mathbb{M}$ valued fermion correlators on the sphere, which does not require the scattering equations to hold, and is a consequence of the isomorphism $T\mathbb{M} \simeq \mathbb{S}^+ \otimes \mathbb{S}^-$ between the tangent bundle of Minkowski space and the left- and right-handed spin bundles. We present and prove this general splitting formula.
description: 21 pages
D3.2: Report on disassemblability analysis (EU TREASURE PROJECT)
Creators: name: Ortego, Abel
name: valero, alicia
name: Magdalena, Ricardo
name: Liendo, Marcelo
name: Alquezar, E.
name: Diez, A.
name: Iglesias-Émbil, Marta
Publisher: name: Zenodo
Year: 2023

description: This deliverable shows the main outcomes of Task 3.2 of the TREASURE Project, about the disassemblability analysis. The disassemblability assessment has been carried out to the three vehicles selected in Task 3.1 (SEAT Leon model II, SEAT Leon model III and SEAT Ibiza model IV). Specific critical components identified in Task 3.1 were examined.
The Darboux transformation in black hole perturbation theory
Creators: name: Glampedakis, Kostas
name: Johnson, Aaron D.
name: Kennefick, Daniel
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Darboux transformation between ordinary differential equations is a 19th century technique that has seen wide use in quantum theory for producing exactly solvable potentials for the Schrödinger equation with specific spectral properties. In this paper we show that the same transformation appears in black hole theory, relating, for instance, the Zerilli and Regge-Wheeler equations for axial and polar Schwarzschild perturbations. The transformation reveals these two equations to be isospectral, a well known result whose method has been repeatedly reintroduced under different names. We highlight the key role that the so-called algebraically special solutions play in the black hole Darboux theory and show that a similar relation exists between the Chandrasekhar-Detweiler equations for Kerr perturbations. Finally, we discuss the limitations of the method when dealing with long-range potentials and explore the possibilities offered by a generalised Darboux transformation.
description: Accepted for publication in PRD, minor changes have been made to update to the journal version, 13 pages, 1 table
Bellini Digital Correspondence meets MEI
Creators: name: Mazzagufo, Laura
name: Sichera, Pietro
name: Grosso, Angelo Mario Del
name: Spampinato, Daria
Publisher: name: Zenodo
Year: 2023
Subjects: Digital scholarly edition
Bellini Digital Correspondence
Vincenzo Bellini
XML-TEI
XML-MEI
multimedia museum

description: In this contribution, we show some features of the BDC digital scholarly edition along with some strategies implemented to automate, wherever possible, the process of textual encoding, analysis and normalisation, as well as some perspectives on the work in progress concerning the encoding of epistolary-related music materials in MEI.
description: Paper presented at the joint MEC TEI conference 2023. "Encoding Cultures" September 4 - 8, 2023 | Paderborn, Germany
Adinkras From Ordered Quartets of BC${}_4$ Coxeter Group Elements and Regarding 1,358,954,496 Matrix Elements of the Gadget
Creators: name: Gates, S. James
name: Guyton, Forrest
name: Harmalkar, Siddhartha
name: Kessler, David S.
name: Korotkikh, Vadim
name: Meszaros, Victor A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We examine values of the Adinkra Holoraumy-induced Gadget representation space metric over all possible four-color, four-open node, and four-closed node adinkras. Of the 1,358,954,496 gadget matrix elements, only 226,492,416 are non-vanishing and take on one of three values: $-1/3$, $1/3$, or $1$ and thus a subspace isomorphic to a description of a body-centered tetrahedral molecule emerges.
description: LaTeX twice, 56pp, 30 tables, 5 figures, latest version includes link to updated code, minor corrections, and additional support about inequivalent representations and tetrahedral geometry comments added along with observations about similarity with results previously found by Nekrasov
Past, Present, Future: A Computational Investigation of the Typology of Tense in 1000 Languages
Creators: name: Asgari, Ehsaneddin
name: Schütze, Hinrich
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present SuperPivot, an analysis method for low-resource languages that occur in a superparallel corpus, i.e., in a corpus that contains an order of magnitude more languages than parallel corpora currently in use. We show that SuperPivot performs well for the crosslingual analysis of the linguistic phenomenon of tense. We produce analysis results for more than 1000 languages, conducting - to the best of our knowledge - the largest crosslingual computational study performed to date. We extend existing methodology for leveraging parallel corpora for typological analysis by overcoming a limiting assumption of earlier work: We only require that a linguistic feature is overtly marked in a few of thousands of languages as opposed to requiring that it be marked in all languages under investigation.
Escala de valoració del treball individual o grupal
Creators: name: De Haro, J.J.
Publisher: name: Zenodo
Year: 2022
Subjects: Escala de valoració
Rúbrica
eXeLearning

description: Una escala d'avaluació simple per avaluar el treball individual o grupal de l'alumne. Tres versions: Versió ELP per editar amb eXeLearning: Avaluació del treball.elp Versió ODS per importar a Google Classroom: Escala de valoració del treball (versió Classroom).ods Versió ODS per emplenar a mà: Escala_de_valoracio_del_treball.ods 
An Accelerated Composite Gradient Method for Large-scale Composite Objective Problems
Creators: name: Florea, Mihai I.
name: Vorobyov, Sergiy A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C06, 68Q25, 90C25

description: We introduce a framework, which we denote as the augmented estimate sequence, for deriving fast algorithms with provable convergence guarantees. We use this framework to construct a new first-order scheme, the Accelerated Composite Gradient Method (ACGM), for large-scale problems with composite objective structure. ACGM surpasses the state-of-the-art methods for this problem class in terms of provable convergence rate, both in the strongly and non-strongly convex cases, and is endowed with an efficient step size search procedure. We support the effectiveness of our new method with simulation results.
The incel phenomenon: Understanding the who, why and how of online misogyny
Creators: name: Pattyn, Renée
Publisher: name: Zenodo
Year: 2023
Subjects: incels
incel community
misogyny
online misogyny
virtual ethnography
radicalisation
gender-based hate

description: Based on a shared lack of romantic and sexual relationships with women, the “involuntarily celibate” have congregated online in misogynistic cyberspaces to vent their personal issues, feelings towards women, and frustration about society. While their hostile attitudes and support for both online and offline violent rhetoric and actions have already been frequently studied, the question remains as to how the community pushes certain people towards adopting (extreme) misogynistic beliefs. Therefore, this ongoing project aims to further our knowledge of the community and its members, online misogyny, and radicalisation towards misogynistic extremism. For this purpose, the project will delve into the following elements: (1) the characteristics of people who identify as incels and join the community, (2) their reasons for joining and participating, and their experiences on these platforms, and (3) how the community contributes towards online misogynistic radicalisation by developing, sustaining, and spreading the incel ideology and online misogyny. The incel phenomenon will be studied from an interdisciplinary perspective shaped by literature on radicalisation, feminist scholarship on gender, masculinity and misogyny, (social) psychology, online communities etc., and combined with a mixed methods approach. The basis of this virtual ethnographic study is formed by non-participant observations on three forums, where a thematic analysis based on the writings of the members and a quantitative analysis of forum statistics will provide a view into the inner dynamics of the observed forums. This data in turn will shape the subsequent qualitative interviews and quantitative survey with self-identified incels, where specific themes that emerged during the first phase can be more deeply explored. By studying the incel phenomenon from various perspectives using several methods, and focusing on both personal and social factors, this study will shed light on the dynamics of online gender-based hate and radicalisation.