cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Star Formation at Zero and Very Low Metallicities
Creators: name: Tan, Jonathan C.
name: McKee, Christopher F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe how star formation is expected to proceed in the early metal-free Universe, focusing on the very first generations of stars. We then discuss how the star formation process may change as the effects of metallicity, external radiative feedback, and magnetic and turbulent support of the gas become more important. The very first stars (Pop III.1) have relatively simple initial conditions set by cosmology and the cooling properties of primordial gas. We describe the evolution of these stars as they grow in mass by accretion from their surrounding gas cores and how the accretion process is affected and eventually terminated by radiative feedback processes, especially HII region expansion and disk photoevaporation. The ability of the protostar and its disk to generate dynamically important magnetic fields is reviewed and their effects discussed. Pop III.1 star formation is likely to produce massive (~100-200Msun) stars that then influence their surroundings via ionization, stellar winds, and supernovae. These processes heat, ionize and metal-enrich the gas, thus altering the initial conditions for the next generation of star formation. Stars formed from gas that has been altered significantly by radiative and/or mechanical feedback, but not by metal enrichment (Pop III.2) are expected to have significantly smaller masses than Pop III.1 stars because of more efficient cooling from enhanced HD production. Stars formed from gas that is metal-enriched to levels that affect the dynamics of the collapse (the first Pop II stars) are also expected to have relatively low masses. We briefly compare the above star formation scenarios to what is known about present-day star formation.
description: 16 pages, including 11 figures, Review paper to appear in "First Stars III", eds. B. O'Shea, A. Heger and T. Abel
Observation of time quasicrystal and its transition to superfluid time crystal
Creators: name: Autti, S.
name: Volovik, G. E.
name: Eltsov, V. B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report experimental realization of a quantum time quasicrystal, and its transformation to a quantum time crystal. We study Bose-Einstein condensation of magnons, associated with coherent spin precession, created in a flexible trap in superfluid $^3$He-B. Under a periodic drive with an oscillating magnetic field, the coherent spin precession is stabilized at a frequency smaller than that of the drive, demonstrating spontaneous breaking of discrete time translation symmetry. The induced precession frequency is incommensurate with the drive, and hence the obtained state is a time quasicrystal. When the drive is turned off, the self-sustained coherent precession lives a macroscopically-long time, now representing a time crystal with broken symmetry with respect to continuous time translations. Additionally, the magnon condensate manifests spin superfluidity, justifying calling the obtained state a time supersolid or a time super-crystal.
Supplementary Figures: Retreat and advance subduction processes in the Yamansu-Central Tianshan arc (NW China): insights into the long-lasting accretionary orogenesis and final closure of the Paleo-Asian Ocean in the southern Altaids
Creators: name: Wang, Kai
name: Xiao, Wenjiao
name: Mao, Qigui
name: Yang, He
name: Ji, Wenhua
name: Abuduxun, Nijiati
name: Sang, Miao
name: Wang, Zhihua
name: Li, Yanguang
Publisher: name: Geological Society of London
Year: 2024
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary Figures.
Défis de la justice transitionnelle en Colombie: Entre violence et pacification
Creators: name: Marcotte, Charlotte
Publisher: name: My University
Year: 2022

description: La signature des accords de paix en Colombie en 2016 a permis de mettre fin à plus de 50 ans de conflit armé entre le gouvernement et la guérilla des Forces armées révolutionnaires de Colombie (FARC). Souhaitant adresser les nombreuses violations commises lors du conflit armé et amorcer un cheminement vers la paix, les deux partis ont choisi de mettre sur pied un système de justice transitionnelle. Comment expliquer la continuation des violations en Colombie, malgré l’instauration de la justice transitionnelle lors des accords de paix signés en 2016? Il est soutenu que cinq ans après la signature de paix, le résultat est mitigé. La mise en place de la justice transitionnelle en tant que stratégie de reconstruction sociale et étatique est un outil à double tranchant. Ceci s’explique d’une part, par sa capacité à faire le point sur les diverses violations subies et commises lors du conflit armé, et d’autre part, par son incapacité à enrayer une impunité relative en ce qui touche la continuation des violations en dépit de la signature des accords de paix. Ceci serait examiné à travers des études de cas illustrant les processus et les instruments utilisés par la justice transitionnelle en Colombie. Mots clés : Justice transitionnelle, Paix, Conflit, Colombie et FARC
Techniques for investigating past landscapes and environments
Creators: name: Kurpiel, Rebekah
name: Meredith-Williams, Matthew
name: Gell, Peter
name: Herries, Andrew
name: Hil, Gregory
name: Jankowski, Nathan
name: King, Fleur
name: Martens, Tracy
name: Penzo-Kajewski, Paul
Publisher: name: La Trobe
Year: 2025
Subjects: classificationCode: 410206
subject: Landscape ecology
classificationCode: 430307
subject: Environmental history
classificationCode: 430107
subject: Historical archaeology (incl. industrial archaeology)
classificationCode: 460106
subject: Spatial data and applications

description: This paper was included in the 13th issue of Excavations, Surveys and Heritage Management in Victoria and was presented at the annual Victorian Archaeology Colloquium held at La Trobe University on 2 February 2024.
Electronic scattering, focusing, and resonance by a spherical barrier in Weyl semimetals
Creators: name: Lu, Ming
name: Zhang, Xiao-Xiao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We solve the Weyl electron scattered by a spherical step potential barrier. Tuning the incident energy and the potential radius, one can enter both quasiclassical and quantum regimes. Transport features related to far-field currents and integrated cross sections are studied to reveal the preferred forward scattering. In the quasiclassical regime, a strong focusing effect along the incident spherical axis is found in addition to optical caustic patterns. In the quantum regime, at energies of successive angular momentum resonances, a polar aggregation of electron density is found inside the potential. The findings will be useful in transport studies and electronic lens applications in Weyl systems.
description: 3 figures. Almost the same as the published version
title: ADCO, Cartulaire de Cîteaux pour les possessions d'Aloxe (XVe siècle), Cart. 182 (11 H 233), 105 folios, f. 0013
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les possessions d'Aloxe (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 182 (11 H 233), 105 folios, f. 0013, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d'Aloxe (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 182 (11 H 233), 105 folios, f. 0013, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Obstacles à l’intégration socioéconomique des femmes immigrantes. Le cas des femmes haïtiennes dans la région d’Ottawa-Gatineau.
Creators: name: Luxama, Stéphanie
Publisher: name: My University
Year: 2023

description: Ce mémoire se penche sur les obstacles à l’intégration socioéconomique des femmes immigrantes haïtiennes de la région d’Ottawa-Gatineau, notamment les difficultés liées à la pandémie de la Covid-19. Il vise également à comprendre les différentes stratégies d’intégration déployées par ces femmes immigrantes. Cette exploration s’appuie sur des méthodes et approches qualitatives car elles permettent de recueillir les données nécessaires en vue de l’analyse du sujet. Vu le contexte de la pandémie de Covid-19, des entrevues individuelles ont été réalisé dans le cadre du projet de recherche ITC (S’intégrer en Temps de Crise), dont trois d’entre elles ont été utilisées dans le cadre de ce mémoire. D’une part, Ces entrevues permettent de soulever les difficultés d’intégration des femmes immigrantes haïtiennes sur le plan socioéconomique et les stratégies mises en place pour les contourner. D’autre part, elles permettent de comprendre comment la pandémie à impacter le processus d’intégration de ces femmes immigrantes. A lumière de l’approche intersectionnelle, cette recherche nous a permis de voir que chacune des femmes vivent de manière différente leur intégration socioéconomique dans la société d’accueil et développent des stratégies d’intégration par rapport à leur situation distinctive. Mots clés : Intégration, socio économie, femmes immigrantes, migration, Covid-19, intersectionnalité, race, genre et sexe, discrimination.
Using the Architecture Tradeoff Analysis Method (ATAM) to Evaluate the Software Architecture for a Product Line of Avionics Systems: A Case Study
Creators: name: Barbacci, Mario
name: Clements, Paul C
name: Lattanze, Anthony
name: Northrop, Linda
name: Wood, William
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: The quality of a software-intensive system depends heavily on the system's software architecture. When used appropriately, software architecture evaluations can have a favorable effect on a delivered or modified government system. This technical note describes the application of the Architecture Tradeoff Analysis Method (ATAM) to an Army avionics system acquisition. A government-contractor team is developing the Common Avionics Architecture System (CAAS) for a family of U.S. Army Special Operations helicopters. This technical note presents the contextual background about the software architecture, the organization, and the system being evaluated. It also provides a general overview of the ATAM process, describes the application of the ATAM to the CAAS, and presents important results and benefits.
The Arbitrarily Varying Relay Channel
Creators: name: Pereg, Uzi
name: Steinberg, Yossef
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the arbitrarily varying relay channel, and establish the cutset bound and partial decode-forward bound on the random code capacity. We further determine the random code capacity for special cases. Then, we consider conditions under which the deterministic code capacity is determined as well.
description: arXiv admin note: text overlap with arXiv:1701.03342
Spin dynamics and exchange interactions in CuO measured by neutron scattering
Creators: name: Jacobsen, H.
name: Gaw, S. M.
name: Princep, A. J.
name: Hamilton, E.
name: Tóth, S.
name: Ewings, R. A.
name: Enderle, M.
name: Wheeler, E. M. Hétroy
name: Prabhakaran, D.
name: Boothroyd, A. T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic properties of CuO encompass several contemporary themes in condensed matter physics, including quantum magnetism, magnetic frustration, magnetically-induced ferroelectricity and orbital currents. Here we report polarized and unpolarized neutron inelastic scattering measurements which provide a comprehensive map of the cooperative spin dynamics in the low temperature antiferromagnetic (AFM) phase of CuO throughout much of the Brillouin zone. At high energies ($E \gtrsim 100$\,meV) the spectrum displays continuum features consistent with the des Cloizeax--Pearson dispersion for an ideal $S=\frac{1}{2}$ Heisenberg AFM chain. At lower energies the spectrum becomes more three-dimensional, and we find that a linear spin-wave model for a Heisenberg AFM provides a very good description of the data, allowing for an accurate determination of the relevant exchange constants in an effective spin Hamiltonian for CuO. In the high temperature helicoidal phase, there are features in the measured low-energy spectrum that we could not reproduce with a spin-only model. We discuss how these might be associated with the magnetically-induced multiferroic behavior observed in this phase.
Using Software Development Tools and Practices in Acquisition
Creators: name: Levinson, Harry
name: Librizzi, Richard
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Acquiring software-reliant systems from an external resource can be time consuming, costly, and often unreliable. During independent technical assessments and customer engagements, the Software Engineering Institute observed many contractors who are not utilizing mature, readily available software development tools when creating code for government programs. These tools include static analysis, test automation, and peer review techniques. In addition to the aforementioned tools being important for software developers, they offer significant insight and confidence to customers who acquire software products. There are many benefits from making these tools and practices integral to software development and acquisition processes, including: • reduced risk: programs deliver more predictably • improved customer satisfaction: products developed experience fewer field defects • lower cost of ownership: programs experience lower life-cycle maintenance costs when deployed operationally This technical note provides an introduction to key automation and analysis techniques, the use of which the authors contend will benefit motivated acquirers and developers.
Topological energy conversion through bulk or boundary of driven systems
Creators: name: Peng, Yang
name: Refael, Gil
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Combining physical and synthetic dimensions allows a controllable realization and manipulation of high dimensional topological states. In our work, we introduce two quasiperiodically driven 1D systems which enable tunable topological energy conversion between different driving sources. Using three drives, we realize a 4D quantum Hall state which allows energy conversion between two of the drives within the bulk of the 1D system. With only two drives, we achieve energy conversion between the two at the edge of the chain. Both effects are a manifestation of the effective axion electrodynamics in a 3D time-reversal invariant topological insulator. Furthermore, we explore the effects of disorder and commensurability of the driving frequencies, and show the phenomena is robust. We propose two experimental platforms, based on semiconductor heterostructures and ultracold atoms in optical lattices, in order to observe the topological energy conversion.
description: 16 pages, 10 figures
title: Финансы социальной сферы
Creators: name: ELS IPR BOOKS
Publisher: name: EDP Hub (Идипи Хаб), Ай Пи Ар Медиа
Year: 2025

description: В монографии исследуются методологические основы финансирования и реализации функций государства с учетом социальной направленности развития отечественной экономики и нестабильности мировой экономики, методологически обоснованы механизмы возрастания социализации государственной собственности. Исследована деятельность социальных организаций, образовательной и медицинской сфер в контексте эффективности использования бюджетных средств. Монография предназначена для специалистов, работников научных организаций и учебных заведений экономического профиля, магистрантов, докторантов и всех интересующихся проблемами бюджетной политики в социальной сфере. Монография будет полезна для студентов, обучающихся по направлению подготовки «Экономика и финансы» и изучающих дисциплину «Бизнес и финансы социальной сферы».
MOESM9 of KIAA1429 contributes to liver cancer progression through N6-methyladenosine-dependent post-transcriptional modification of GATA3
Creators: name: Lan, Tian
name: Li, Hui
name: Zhang, Delin
name: Xu, Lin
name: Liu, Hailing
name: Hao, Xiangyong
name: Yan, Xiaokai
name: Liao, Haotian
name: Chen, Xiangzheng
name: Xie, Kunlin
name: Li, Jiaxin
name: Liao, Mingheng
name: Huang, Jiwei
name: Yuan, Kefei
name: Zeng, Yong
name: Wu, Hong
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 9: Figure S7. GATA3-AS functions as a guide lncRNA that targetedly promotes the interaction of KIAA1429 with GATA3 pre-mRNA. a-b, GATA3-AS expression in SK-Hep1 and HCCLM3 cells transfected with GATA3-AS siRNAs or the control by using qPCR. c-d, GATA3 pre-mRNA expression in SK-Hep1 and HCCLM3 cells transfected with GATA3-AS siRNAs or the control by using qPCR. e-f, GATA3 mRNA expression in SK-Hep1 and HCCLM3 cells transfected with GATA3-AS siRNAs or the control by using qPCR. g-h, RIP-seq of the enrichment of GATA3-AS on HuR relative to IgG. i, Western blot analysis of HuR in protein samples pulled down by even and odd sets for GATA3-AS, and control LacZ probes pool in SK-Hep1 and HCCLM3 cells. j-k, KIAA1429 expression in SK-Hep1 and HCCLM3 cells transfected with GATA3 siRNAs or the control by using qPCR. l-m, GATA3-AS expression in SK-Hep1 and HCCLM3 cells transfected with GATA3 siRNAs or the control by using qPCR. n-o, GATA3-AS expression in SK-Hep1 and HCCLM3 cells transfected with KIAA1429 siRNAs or the control by using qPCR. Data are presented as mean Â± SEM. NS: not significant; **P < 0.01, ***P < 0.001.
title: 01_2206
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Using Malware Analysis to Tailor SQUARE for Mobile Platforms
Creators: name: Alice, Gregory Paul
name: Mead, Nancy R.
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: As the number of mobile-device software applications has grown, so has the amount of malware targeting them. More than 650,000 pieces of malware now target the Android plat-form. As mobile malware becomes more sophisticated and begins to approach threat levels seen on PC platforms, software development security practices for mobile applications will need to adopt the security practices for PC applications to reduce consumers’ exposure to financial and privacy breaches on mobile platforms. This technical note explores the development of security requirements for the K-9 Mail application, an open source email client for the Android operating system. The project’s case study (1) used the Security Quality Requirements Engineering (SQUARE) methodology to develop K-9 Mail’s security requirements and (2) used malware analysis to identify new security requirements in a pro-posed extension to the SQUARE process. This second task analyzed the impacts of DroidCleaner, a piece of Android malware, on the security goals of the K-9 Mail application. Based on the findings, new requirements are created to ensure that similar malware cannot compromise the privacy and confidentiality of email contents.
Principal Killing strings in higher-dimensional Kerr-NUT-(A)dS spacetimes
Creators: name: Boos, Jens
name: Frolov, Valeri P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct special solutions of the Nambu-Goto equations for stationary strings in a general Kerr-NUT-(A)dS spacetime in any number of dimensions. This construction is based on the existence of explicit and hidden symmetries generated by the principal tensor which exists for these metrics. The characteristic property of these string configurations, which we call "principal Killing strings," is that they are stretched out from "infinity" to the horizon of the Kerr-NUT-(A)dS black hole and remain regular at the latter. We also demonstrate that principal Killing strings extract angular momentum from higher-dimensional rotating black holes and interpret this as the action of an asymptotic torque.
description: 14 pages, 1 figure, matches the published version
COVID-19 and Long-Term Care Home Regulations in Canada Comparing Ontario and British Columbia
Creators: name: Karagach, Nicole
Publisher: name: My University
Year: 2021

description: This paper will explore the role of regulatory standards in LTC to try and understand why the COVID-19 virus had such devastating effects within Canada. Specifically, Ontario and British Columbia will be used as two case studies to answer the following three-part research question: What, if any, are the long-term care (LTC) regulatory differences between Ontario and British Columbia? If there are differences, 1) do these regulatory differences help explain the differentiating COVID-19 outcomes in LTC facilities within each province? And 2) do they help explain the relationship between COVID-19 in LTC facilities and ownership status within Ontario and British Columbia? The paper will first explore LTC broadly in Canada, including an overview of COVID-19 within the country. Next, the paper will provide a brief history of LTC and current regulations and enforcement within Ontario and British Columbia. Third, the paper provides an overview of COVID-19 outcomes within LTC throughout the various waves of the pandemic. These sections also include a brief discussion on pre-pandemic emergency preparedness and personal protective equipment (PPE) shortages within each province. The analysis section will then compare the research gathered within each section and point to the differences seen when comparing the two jurisdictions. The paper concludes by using the analysis findings to answer the research question and introducing new avenues of exploration for future research.
A Simplified Calculation for the Fundamental Solution to the Heat Equation on the Heisenberg Group
Creators: name: Boggess, Albert
name: Raich, Andrew
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 32W30, 33C45, 42C10

description: Let $L = -1/4 (\sum_{j=1}^n(X_j^2+Y_j^2)+iγT)$ where $γ$ is a complex number, $X_j$, $Y_j$, and $T$ are the left invariant vector fields of the Heisenberg group structure for $R^n \times R^n \times R$. We explicitly compute the Fourier transform (in the spatial variables) of the fundamental solution of the Heat Equation $\partial_sρ= -Lρ$. As a consequence, we have a simplified computation of the Fourier transform of the fundamental solution of the $\Box_b$-heat equation on the Heisenberg group and an explicit kernel of the heat equation associated to the weighted dbar-operator in $C^n$ with weight $\exp(-τP(z_1,...,z_n))$ where $P(z_1,...,z_n) = 1/2(x_1^2 + >... x_n^2)$, $z_j=x_j+iy_j$, and $τ\in R$.
description: 8 pages
Local density of states in two-dimensional topological superconductors under a magnetic field: signature of an exterior Majorana bound state
Creators: name: Suzuki, Shu-Ichiro
name: Kawaguchi, Yuki
name: Tanaka, Yukio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study quasiparticle states on a surface of a topological insulator (TI) with proximity-induced superconductivity under an external magnetic field. An applied magnetic field creates two Majorana bound states: a vortex Majorana state localized inside a vortex core and an exterior Majorana state localized along a circle centered at the vortex core. We calculate the spin-resolved local density of states (LDOS) and demonstrate that the shrinking of the radius of the exterior Majorana state, predicted in Ref. [R. S. Akzyanov et al., Phys. Rev. B 94, 125428 (2016)], under a strong magnetic field can be seen in LDOS without smeared out by non-zero-energy states. The spin-resolved LDOS further reveals that the spin of the exterior Majorana state is strongly polarized. Accordingly, the induced odd-frequency spin-triplet pairs are found to be spin-polarized as well. In order to detect the exterior Majorana states, however, the Fermi energy should be closed to the Dirac point to avoid contributions from continuum levels. We also study a different two-dimensional topological-superconducting system where a two-dimensional electron gas with the spin-orbit coupling is sandwiched between an s-wave superconductor and a ferromagnetic insulator. We show that the radius of an exterior Majorana state can be tuned by an applied magnetic field. However, on the contrary to the results at a TI surface, neither the exterior Majorana state nor the induced odd-frequency spin-triplet pairs are spin-polarized. We conclude that the spin-polarization of the Majorana state is attributed to the spin-polarized Landau level which is characteristic for systems with the Dirac-like dispersion.
description: 16 pages, 13 figures
Economic Growth and Environmental Degradation: An Empirical Study on Pollution in Sichuan Province
Creators: name: Hu, Yunxi
Publisher: name: My University
Year: 2017

description: The paper is an empirical study on the relationship between economic growth and pollution, using the data from the province of Sichuan, China. Three pollutants – industrial wastewater, industrial solid wastes, and industrial gas waste – are considered. The results – obtained from the Johansen co-integration test and the Granger causality test – indicate that both industrial wastewater and industrial solid waste have a negative impact on economic growth, but not industrial gas waste.
Self-consistent construction of virialized wave dark matter halos
Creators: name: Lin, Shan-Chang
name: Schive, Hsi-Yu
name: Wong, Shing-Kwong
name: Chiueh, Tzihong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Wave dark matter ($ψ$DM), which satisfies the Schrödinger-Poisson equation, has recently attracted substantial attention as a possible dark matter candidate. Numerical simulations have in the past provided a powerful tool to explore this new territory of possibility. Despite their successes to reveal several key features of $ψ$DM, further progress in simulations is limited, in that cosmological simulations so far can only address formation of halos below $\sim 2\times 10^{11} M_\odot$ and substantially more massive halos have become computationally very challenging to obtain. For this reason, the present work adopts a different approach in assessing massive halos by constructing wave-halo solutions directly from the wave distribution function. This approach bears certain similarity with the analytical construction of particle-halo (cold dark matter model). Instead of many collisionless particles, one deals with one single wave that has many non-interacting eigenstates. The key ingredient in the wave-halo construction is the distribution function of the wave power, and we use several halos produced by structure formation simulations as templates to determine the wave distribution function. Among different models, we find the fermionic King model presents the best fits and we use it for our wave-halo construction. We have devised an iteration method for constructing the nonlinear halo, and demonstrate its stability by three-dimensional simulations. A Milky-Way-sized halo has also been constructed, and the inner halo is found flatter than the NFW profile. These wave-halos have small-scale interferences both in space and time producing time-dependent granules. While the spatial scale of granules varies little, the correlation time is found to increase with radius by one order of magnitude across the halo.
description: 14 pages, 7 figures, accepted by PRD
Quantum gravity fluctuations flatten the Planck-scale Higgs potential
Creators: name: Eichhorn, Astrid
name: Hamada, Yuta
name: Lumma, Johannes
name: Yamada, Masatoshi
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate asymptotic safety of a toy model of a singlet-scalar extension of the Higgs sector including two real scalar fields under the impact of quantum-gravity fluctuations. Employing functional renormalization group techniques, we search for fixed points of the system which provide a tentative ultraviolet completion of the system. We find that in a particular regime of the gravitational parameter space the canonically marginal and relevant couplings in the scalar sector -- including the mass parameters -- become irrelevant at the ultraviolet fixed point. The infrared potential for the two scalars that can be reached from that fixed point is fully predicted and features no free parameters. In the remainder of the gravitational parameter space, the values of the quartic couplings in our model are predicted. In light of these results, we discuss whether the singlet-scalar could be a dark-matter candidate. Furthermore, we highlight how "classical scale invariance" in the sense of a flat potential of the scalar sector at the Planck scale could arise as a consequence of asymptotic safety.
description: 17 pages, 4 figures; Version published in PRD
Procesos de transformación poblacional y su incidencia en la planeación territorial en el departamento del Chocó
Creators: name: Guevara Rivera, Andrés Alberto
name: Amado Sierra, Jeimy Carolina
name: Almendra Ortiz, Claudia Marcela
name: Alvarado Sánchez, Juan Carlos
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Territorio nacional
subject: Población
subject: Recursos naturales
subject: Demografía
subject: Planeación territorial
subject: Departamento del Chocó
subject: Dinámica poblacional
subject: RAP Pacífico

description: El estudio de las dinámicas demográficas permite determinar sus implicaciones en los procesos de planeación en las diferentes escalas territoriales del país. Por esta razón, esta investigación se centro en realizar una caracterización de las transformaciones poblacionales (con énfasis en los cambios de estructura) de la región RAP-Pacífico e identificar su incorporación en los instrumentos de planeación regional, departamental y municipal, específicamente para el departamento del Chocó. Como resultados se presenta una caracterización departamental que incluye diferentes indicadores tanto poblacionales como de contexto según dimensiones del desarrollo; de la misma forma, se efectúa un análisis de inclusión de la dinámica demográfica en el plan departamental y se analiza la coherencia entre las lineas estratégicas de los niveles departamental y regional. Posteriormente se realiza la descripción de la dinámica demográfica básica para cada uno de los municipios que conforman el departamento y, de la misma manera, se analiza la incorporación de la dinámica demográfica en los planes de desarrollo municipales para el periodo 2020-2023. Finalmente, dentro del análisis se encontró que la incorporación de elementos demográficos en los instrumentos de planeación es incipiente, principalmente en el componente estratégicos de los planes de desarrollo.
Using EVMS with COTS-Based Systems
Creators: name: Staley, Mary Jo
name: Oberndorf, Patricia A.
name: Sledge, Carol A.
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: With the increased use of commercial off-the-shelf (COTS) software products, managers of software development projects must plan and track performance of projects that have new challenges and risks. A system developer may be required to integrate multiple COTS products with newly developed custom components and legacy system components. How are these new activities and tasks planned and monitored? Can traditional management methods be used? Earned Value is a project management tool used extensively to plan and monitor performance against the plan. This paper's focus is on the use of Earned Value in the context of a COTS-Based System (CBS). It's written for an audience already familiar with Earned Value Project Management; only the basic definitions are discussed here with the associated terminology. A bibliography is included, offering good sources for obtaining more in-depth information on Earned Value history and methodology.
Complexity of viscous dissipation in turbulent thermal convection
Creators: name: Bhattacharya, Shashwat
name: Pandey, Ambrish
name: Kumar, Abhishek
name: Verma, Mahendra K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 76F35 (Primary), 76F65 (Secondary)

description: Using direct numerical simulations of turbulent thermal convection for Rayleigh number ($\mathrm{Ra}$) between $10^6$ and $10^8$ and unit Prandtl number, we derive scaling relations for viscous dissipation in the bulk and in the boundary layers. We show that contrary to the general belief, the total viscous dissipation in the bulk is larger, albeit marginally, than that in the boundary layers. The bulk dissipation rate is similar to that in hydrodynamic turbulence with log-normal distribution, but it differs from $(U^3/d)$ by a factor of $\mathrm{Ra}^{-0.18}$. Viscous dissipation in the boundary layers are rarer but more intense with a stretched-exponential distribution.
description: 5 pages, 4 figures, 1 supplemental material
Observational Constraints on Secret Neutrino Interactions from Big Bang Nucleosynthesis
Creators: name: Huang, Guo-yuan
name: Ohlsson, Tommy
name: Zhou, Shun
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate possible interactions between neutrinos and massive scalar bosons via $g^{}_ϕ \overlineν νϕ$ (or massive vector bosons via $g^{}_V \overlineν γ^μνV^{}_μ$) and explore the allowed parameter space of the coupling constant $g^{}_ϕ$ (or $g^{}_V$) and the scalar (or vector) boson mass $m^{}_ϕ$ (or $m^{}_V$) by requiring that these secret neutrino interactions (SNIs) should not spoil the success of Big Bang nucleosynthesis (BBN). Incorporating the SNIs into the evolution of the early Universe in the BBN era, we numerically solve the Boltzmann equations and compare the predictions for the abundances of light elements with observations. It turns out that the constraint on $g^{}_ϕ$ and $m^{}_ϕ$ in the scalar-boson case is rather weak, due to a small number of degrees of freedom. However, in the vector-boson case, the most stringent bound on the coupling $g^{}_V \lesssim 6\times 10^{-10}$ at $95~\%$ confidence level is obtained for $m^{}_V \simeq 1~{\rm MeV}$, while the bound becomes much weaker $g^{}_V \lesssim 8\times 10^{-6}$ for smaller masses $m^{}_V \lesssim 10^{-4}~{\rm MeV}$. Moreover, we discuss in some detail how the SNIs affect the cosmological evolution and the abundances of the lightest elements.
description: 18 pages, 5 figures
Condiciones necesarias para el fortalecimiento de una soberanía farmacéutica en Colombia
Creators: name: Marín Varón, Juan Camilo
name: Correa Cardona, Manuela
Publisher: name: Universidad Externado de Colombia
Year: 2023
Subjects: subject: Materias primas
subject: Tecnología farmacéutica
subject: Industria farmacéutica
subject: Soberanía farmacéutica
subject: Know-How
subject: Salud

description: El objetivo de este trabajo de investigación es responder a la pregunta de investigación ¿Es necesario potenciar en Colombia, los elementos esenciales de know how, materias primas y desarrollo industrial, de forma mancomunada entre el sector público y privado, para lograr la consolidación y fortalecimiento de una soberanía farmacéutica nacional incluyente? Para lograrlo, se llevará a cabo un análisis global del comportamiento oligopólico de las grandes industrias farmacéuticas de países desarrollados, seguido de un examen de las condiciones de soberanía farmacéutica ya consolidadas en el continente americano. Por último, se evaluarán las condiciones actuales de la industria farmacéutica en los aspectos de producción y distribución en Colombia. El propósito de este análisis es evaluar el estado actual y proponer los elementos esenciales que permitan crear un entorno propicio para el desarrollo de la soberanía farmacéutica en Colombia. Esto garantizará que la demanda de medicamentos e insumos médicos a nivel local pueda ser satisfecha de manera autónoma, con un enfoque público y con garantías de los derechos humanos. Es fundamental contar con un sistema fortalecido y preparado para futuras contingencias similares a la crisis sanitaria provocada por la pandemia de CORONAVIRUS (COVID-19) en el año 2020.
description: The objective of this research work is to answer the research question: Is it necessary to enhance in Colombia the essential elements of know-how, source materials, and industrial development in a collaborative manner between the public and private sectors, in order to achieve the consolidation and strengthening of an inclusive national pharmaceutical sovereignty? To achieve this, the study begins with a global analysis of the oligopolistic behavior of large pharmaceutical industries in developed countries, followed by an examination of the already consolidated conditions of pharmaceutical sovereignty in the American continent. Finally, the current conditions of the pharmaceutical industry in terms of production and distribution in Colombia will be evaluated. The purpose of this analysis is to assess the current state of the pharmaceutical industry in Colombia, and propose the essential elements that will enable the creation of a conducive environment for the development of pharmaceutical sovereignty in the Colombian territory. This will ensure that the local demand for medicines and medical supplies can be assumed autonomously, with a public focus and observance for human rights. It is crucial to have a strengthened and prepared system for future contingencies similar to the health crisis caused by the COVID-19 pandemic in 2020.
Dynamics of magnetic skyrmion clusters driven by spin-polarized current with a spatially varied polarization
Creators: name: Jiang, Wenjing
name: Xia, Jing
name: Zhang, Xichao
name: Song, Yifan
name: Ma, Chuang
name: Fangohr, Hans
name: Zhao, G. P.
name: Liu, Xiaoxi
name: Zhao, Weisheng
name: Zhou, Yan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic skyrmions are promising candidates for future information technology. Here, we present a micromagnetic study of isolated skyrmions and skyrmion clusters in ferromagnetic nanodisks driven by the spin-polarized current with spatially varied polarization. The current-driven skyrmion clusters can be either dynamic steady or static, depending on the spatially varied polarization profile. For the dynamic steady state, the skyrmion cluster moves in a circle in the nanodisk, while for the static state, the skyrmion cluster is static. The frequency of the circular motion of skyrmion is also studied. Furthermore, the dependence of the skyrmion cluster dynamics on the magnetic anisotropy and Dzyaloshinskii-Moriya interaction is investigated. Our results may provide a pathway to realize magnetic skyrmion cluster based devices.
description: 5 pages, 5 figures
La protection de la jeunesse au Québec : Analyse des enjeux entourant la collaboration entre les familles et les intervenant.es à la lumière des recommandations de la Commission Laurent
Creators: name: Bergeron, Jasmine Angélique
Publisher: name: My University
Year: 2024

description: Ce mémoire porte sur la protection de la jeunesse au Québec et des enjeux entourant la collaboration entre les familles et les intervenant.es à la lumière des recommandations de la Commission Laurent. L’objectif de cette recherche est de comprendre les enjeux identifiés par la Commission Laurent qui ont un impact sur la collaboration entre les familles et les intervenant.es, et ce dans le but de proposer des améliorations qui soient bénéfiques pour les familles. À partir de l’analyse du rapport publié de la Commission Laurent en 2021, nous essayons de comprendre les facteurs explicatifs des difficultés de collaboration entre les intervenant.es et les familles, et les solutions proposées. Les résultats de notre analyse révèlent que certaines des solutions recommandées à cet effet, par la Commission Laurent, ont été mises en place tandis que d’autres ne se sont toujours pas concrétisées. Une analyse écosystémique de ces facteurs montre également que les enjeux identifiés sont fortement interreliés et nécessitent des solutions systémiques. Conséquemment, nos recommandations mettent en lumière la nécessité de mettre en œuvre des moyens préventifs à l’implication de la protection de la jeunesse, des moyens favorisant la participation de la famille dans le processus de la protection de la jeunesse ainsi que des moyens favorisant les conditions de travail des intervenant.es. Mots-clés : DPJ; protection de l’enfance; Collaboration; Famille; Commission Laurent, Québec
Holographic entanglement entropy for disconnected regions
Creators: name: Hubeny, Veronika E.
name: Rangamani, Mukund
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a simple derivation of the entanglement entropy for a region made up of a union of disjoint intervals in 1+1 dimensional quantum field theories using holographic techniques. This generalizes the results for 1+1 dimensional conformal field theories derived previously by exploiting the uniformization map. We further comment on the generalization of our result to higher dimensional field theories.
description: 3 eps figures, 17 pages. v2: minor changes
Determinants of Job Satisfaction: Canadian Labour Market
Creators: name: Ghassemi, Mahshid
Publisher: name: My University
Year: 2019

description: This study aims to examine the impact of individual and job characteristics as well as health status on job satisfaction in the Canadian labour market, using an ordered probit model, with data drawn from the General Social Survey (GSS), cycle 30, 2016, Canada: Canadians at work and home. The results highlight the importance of health status, individual and job characteristics. Marginal effects are provided, shedding light on the impact of each independent variable on job satisfaction, making policy targeting more feasible. Among all variables, two job-related factors, having opportunities to provide input into decisions and having a good prospect for career advancement, appear to have the greatest impact on job satisfaction. These findings have implications for policymakers and employers, for job satisfaction is of great importance both for employees' psycho-social well-being, and the efficiency of human capital.