bluuebunny/crossref_metadata_2025_split huggingface dataset:
Discovery of Tidal Tails around the Old Open Cluster NGC 2506
Authors: Gao Xinhua 
Published: May 2020

AbstractWe report the discovery of tidal tails around the old open cluster NGC 2506 based on Gaia-DR2. A principal-component analysis and Gaussian mixture model are used to identify extra-tidal stars. We identify 2301 stars closely related to the cluster, 147 of which are likely extra-tidal stars. We find clear evidence for the existence of two well-defined tidal tails emerging from the cluster. The tidal tails extend out to projected distances of at least 54 pc, which is nearly three times as large as the tidal radius of the cluster. Furthermore, we find that the extra-tidal stars have a wide mass spectrum (∼0.6−1.4M⊙), which cannot be completely explained by mass segregation and the preferential evaporation of low-mass stars. An extra dynamical process such as disk-shocking may also play an important role in forming these extra-tidal stars. A mass-loss rate of ∼5.3M⊙Myr−1is estimated for the cluster. This reveals that NGC 2506 is currently undergoing heavy mass-loss due to star escapes.
Toward a Full MHD Jet Model of Spinning Black Holes. II. Kinematics and Application to the M87 Jet
Authors: Huang Lei , Pan Zhen , Yu Cong 
Published: May 2020

Abstract
In this paper, we investigate the magnetohydrodynamical structure of a jet powered by a spinning black hole, where electromagnetic fields and fluid motion are governed by the Grad–Shafranov equation and the Bernoulli equation, respectively. When a steady and axisymmetric jet structure is assumed, the global solution is uniquely determined with the prescribed plasma loading into the jet and the poloidal shape of the outmost magnetic field line. We apply this model to the jet in the center of the nearby radio galaxy M87, and we find that it can naturally explain the slow flow acceleration and the flow velocity stratification within 105 gravitational radii from the central black hole. In particular, we find that the extremal black hole spin is disfavored by the flow velocity measurements if the plasma loading into the jet is dominated by the electron-positron pair production at the jet base.
Energy Level Structure and Transition Data of Er2+
Authors: Gaigalas Gediminas , Rynkun Pavel , Radžiūtė Laima , Kato Daiji , Tanaka Masaomi , Jönsson P. 
Published: May 2020

Abstract
A majority of Er in the universe is synthesized by the r-process, which can occur in the mergers of neutron stars (NSs). The contribution of this element to the opacity of NS ejecta should be tested, but even the energy levels of first excited configuration have not been fully presented. The main aim of this paper is to present accurate energy levels of the ground [Xe]4f
12 and first excited [Xe]4f
115d configurations of Er2+. The energy level structure of the Er2+ ion was computed using the multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction (RCI) methods, as implemented in the GRASP2018 program package. The Breit interaction, self-energy, and vacuum polarization corrections were included in the RCI computations. The zero-first-order approach was used in the computations. Energy levels with the identification in LS coupling for all (399) states belonging to the [Xe]4f
12 and [Xe]4f
115d configurations are presented. Electric dipole (E1) transition data between the levels of these two configurations are computed. The accuracy of these data is evaluated by studying the behavior of the transition rates as functions of the gauge parameter, as well as by evaluating the cancellation factors. The core electron correlations were studied using different strategies. The rms deviations obtained in this study for states of the ground and excited configurations from the available experimental data are 649 and 754 cm−1, respectively.
Counterstreaming Strahls and Heat Flux Dropouts as Possible Signatures of Local Particle Acceleration in the Solar Wind
Authors: Khabarova O. , Zharkova V. , Xia Q. , Malandraki O. E. 
Published: May 2020

Abstract
Suprathermal electrons with energies of ∼70 eV and above are observed at 1 au as dispersionless halo electrons and magnetic field-aligned beams of strahls. For a long time, it has been thought that both populations originate only from the solar corona, and that the only active process impacting their properties in the solar wind is scattering. This view has consequently impacted the interpretation of typical patterns of pitch-angle distributions (PADs) of suprathermal electrons. Meanwhile, recent observational studies supported by numerical simulations have shown that there is an unaccounted population of electrons accelerated to suprathermal energies at reconnecting current sheets (RCSs) and 3D dynamical plasmoids (or 2D magnetic islands (MIs)) directly in the heliosphere. We present multispacecraft observations of counterstreaming strahls and heat flux dropouts in PADs within a region filled with plasmoids and RCSs unaffected by interplanetary shocks, comparing observed PAD features with those predicted by particle-in-cell simulations. We show typical PAD patterns determined by local acceleration of thermal-core electrons up to hundreds of electron volts. Resulting PAD views depend on properties and topology of particular RCSs, MIs, and plasma/magnetic field parameters. Our study suggests that solar wind-borne suprathermal electrons coexist with those of solar origin. Therefore, some of heat flux dropout and bidirectional strahl events can be explained by local dynamical processes involving magnetic reconnection. Possible implications of the results for the interpretation of the actively debated decrease in the strahl/halo relative density with heliocentric distance and puzzling features of suprathermal electrons observed at crossings of the heliospheric current sheet and cometary comas are also discussed.
The Search for MeV Electrons 2–45 au from the Sun with the Alice Instrument Microchannel Plate Detector Aboard New Horizons
Authors: Keeney B. A. , Versteeg M. , Parker J. Wm. , Stern S. A. , Brunts P. , Davis M. W. , Elliott H. A. , Ennico K. , Gladstone G. R. , McNutt R. L. , Olkin C. B. , Retherford K. D. , Singer K. N. , Spencer J. R. , Steffl A. J. , Weaver H. A. , Young L. A. 
Published: May 2020

Abstract
The Alice UV spectrograph aboard NASA’s New Horizons mission is sensitive to MeV electrons that penetrate the instrument’s thin aluminum housing and interact with its microchannel plate detector. We have searched for penetrating electrons at heliocentric distance of 2–45 au, finding no evidence of discrete events outside of the Jovian magnetosphere. However, we do find a gradual long-term increase in the Alice instrument’s global dark count rate at a rate of ∼1.5% per year, which may be caused by a heightened gamma-ray background from aging of the spacecraft’s radioisotope thermoelectric generator fuel. If this hypothesis is correct, then the Alice instrument’s global dark count rate should flatten and then decrease over the next 5–10 years.
Pharmacokinetics of Daclatasvir in Egyptian Adolescents with Genotype-4 HCV Infection
Authors: Al-Nahari Mogeb M , Abbassi Maggie M , Ebeid Fatma SE , Hassany Mohamed , El-Sayed Manal H , Farid Samar F 
Published: May 2020

Background Daclatasvir has potent antiviral activity against HCV infection when used in combination with sofosbuvir, however, its pharmacokinetics have not been described in adolescents. The aim is to determine the pharmacokinetic parameters of daclatasvir in adolescents, and to develop a population pharmacokinetic (PopPK) model. Methods Seventeen adolescent patients with genotype-4 chronic HCV infection received once daily oral daclatasvir 60 mg in combination with 400 mg sofosbuvir for 12 weeks. Steady state concentrations were determined. Non-compartmental and population PK were determined. Results The average PK parameters calculated by non-compartmental analysis (NCA): maximum plasma concentration (Cmax), area under the curve (AUC), apparent oral volume of distribution (V/F), apparent oral clearance (CL/F) and half-life (T1/2) were 1,092 ng/ml, 11,178 ng/ml•h, 55 l, 4.5 l/h and 8.5 h, respectively. Daclatasvir was best described by one compartment structural PK model with zero order absorption and first-order elimination. The absorption rate constant (K0), V/F, and CL/F of the final PopPK model of daclatasvir were 1.5/h, 52 l and 4.7 l/h, respectively. Body weight and serum albumin had significant effect on the V/F parameter. Conclusions Body weight and serum albumin were the major determinants of daclatasvir V/F in this population. PK parameters were comparable to those reported in adult HCV patients, demonstrating that 60 mg daclatasvir is an appropriate dose for adolescents. ClinicalTrials.gov NCT03540212.
Methods &amp; Proposal for Metadata Guiding Principles for Scholarly Communications
Authors: Kaiser Kathryn , Kemp Jennifer , Paglione Laura , Ratner Howard , Schott David , Williams Helen 
Published: May 2020

This article describes an international community-based effort to create metadata guiding principles for adopting and using richer metadata and advancing its application in scholarly communications. These principles can facilitate the dissemination, discoverability and use/reuse of many types of research and scholarly outputs. While much work remains to be done, these principles serve as a starting point for the evolution of processes that span communities including publishers, researchers, scholars, authors and other creators, librarians, curators, custodians, and consumers of scholarly works.
These aspirational Metadata 2020 Principles are designed to encompass the needs of our entire community while ensuring thoughtful, purposeful, and reusable metadata resources. They provide a framework for all of us to be good metadata citizens. They also provide a foundation for considering related work from Metadata 2020 and must be interpreted within the legal and practical context in which we operate. They are intended to guide the broadest possible cross-section of our community in improving research communications, publishing, and discoverability.
Hybrid HRM as a framework for handling cultural dominance issues at work
Authors: Nyobe Sara , Plane Jean-Michel 
Published: May 2020

Cet article aborde un sujet inexploité en Management et en Gestion des Ressources Humaines (GRH) : la domination culturelle. Des téléopérateurs de centres d’appels étrangers doivent, à l’occasion de leur travail, s’assimiler à la culture de leurs clients occidentaux. Afin de limiter d’éventuelles contradictions entre cette culture imposée et leur culture originelle, ces téléopérateurs sont susceptibles de développer des stratégies identitaires individuelles. Peut-on imposer à des travailleurs tunisiens une identité occidentale ? Peut-on obtenir de salariés musulmans qu’ils adoptent le principe de laïcité à la française, ou encore des traditions judéo-chrétiennes ? A l’issue d’une étude empirique de 55 téléopérateurs et managers de deux centres d’appels tunisiens servant des multinationales françaises, nous révélons que la mise en œuvre de pratiques hybrides de GRH – considérant simultanément les attentes locales et globales – peut contribuer à l’acceptation par des salariés, d’une identité culturelle imposée. L’étude alimente la littérature internationale en GRH en mettant en évidence les conséquences potentielles de la domination culturelle sur des salariés. Elle propose par ailleurs un ensemble de pratiques hybrides de GRH permettant de gérer la domination culturelle. Elle montre enfin, l’intérêt théorique des modèles de l’hypocrisie organisationnelle et de l’organisation ambidextre pour décrypter des situations interculturelles complexes.
Labellisation et pratiques des consultants en prévention des risques psychosociaux : de l’expert institutionnel à l’expert politique
Authors: Chakor Tarik 
Published: May 2020

L’objectif de cet article est d’analyser un mode de labellisation des consultants en prévention des risques psychosociaux (RPS), et de le confronter aux pratiques effectives de ces nouvelles figures expertes. Champ de connaissances à la fois complexe et stratégique, les RPS font état d’un périmètre conceptuel et terminologique flou : ces risques peuvent faire l’objet d’une approche restrictive, tendant à individualiser le risque, limiter la responsabilité de l’employeur et soigner le travailleur d’une part ; et d’une approche élargie, appréhendant la dimension organisationnelle du risque, étendant la responsabilité de l’employeur et soignant le travail et son organisation d’autre part. Cette double lecture, combinée aux jeux de pouvoir et rapports de force entre employeurs et représentants du personnel et à l’hypermédiatisation de ces nouveaux risques professionnels (troubles musculo-squelettiques, burn-out , harcèlement, etc.), ont progressivement accordé une place centrale aux consultants externes, avec la constitution progressive d’un marché du conseil et de l’expertise en prévention des RPS. Notre étude exploratoire, menée au sein du réseau de consultants i3r PACA animé par un triptyque institutionnel (DIRECCTE, CARSAT, ARACT), nous a permis dans un premier temps d’étudier un mode de labellisation de consultants : la labellisation « i3r PACA », donnant naissance à l’expert institutionnel en RPS. Dans un second temps, nous avons interrogé 31 consultants de ce réseau (sur 33) autour de leurs pratiques de prévention co-constructives, adaptatives et/ou militantes, qui font émerger la figure de l’expert politique. Notre discussion s’attachera à interroger les nouvelles formes hybrides entre expert institutionnel et expert politique, notamment au regard de la marchandisation du conseil et de l’expertise en RPS.
La sensibilité, vecteur de l’expertise : le cas des joueurs de volley-ball
Authors: Récopé Michel , Fache Hélène , Rix-Lièvre Géraldine 
Published: May 2020

Notre contribution, adossée à des recherches conduites en raison d’insatisfactions issues du terrain de la formation en volley-ball, s’efforce d’investir un aspect méconnu favorisant l’accès à l’expertise. Elle s’inscrit dans les prolongements récents de l’approche énactive et de la philosophie de la vie, des normes et des valeurs de Canguilhem. Nous étudions l’activité de deux volleyeurs experts au moyen d’observations systématiques et d’entretiens d’autoconfrontation. La confrontation des matériaux comportementaux et des verbatim met en évidence une cohérence propre commune aux deux joueurs, mais également à certains novices, ceux précisément qui performent et progressent davantage que les autres. Les résultats suggèrent que la sensibilité à est, au fondement de cette cohérence, un vecteur crucial de l’expertise. Elle est l’entité intégrant affectivité, cognition et motricité, ainsi que l’instance de la mobilisation de la personne vers ce qui lui importe. Les experts et certains novices ont une sensibilité à commune et nous détaillons les raisons pour lesquelles celle-ci favorise l’accès à l’expertise. L’expert et le novice ne doivent plus être considérés comme des opposés, car leur activité peut être orientée par une même sensibilité à ; il y a lieu de distinguer et de relier deux axes d’analyse : celui de la sensibilité et celui de l’expertise. Nous défendons le principe que mieux comprendre l’expertise, c’est comprendre les conditions qui la favorisent pour tenter de concevoir une formation visant son accès.
Internet y su repercusión en la autopercepción individual del bienestar
Authors: Lozano J. Felix , Femenia Sabrina 
Published: May 2020

<p>Vivimos en una sociedad conectada, donde el uso de Internet ha crecido considerablemente en los últimos años, y se espera siga creciendo aún más a lo largo y ancho del mundo. Como consecuencia, está cambiando el modo en el que las personas nos relacionamos con los demás, pero también con nosotros mismos, e incluso nuestra propia percepción de nuestra propia identidad y bienestar.</p><p>El presente trabajo pretende analizar la influencia de determinados aspectos sociodemográficos en el uso de internet y su impacto en la percepción del bienestar de las personas.</p>Así, tomando los datos de la European Social Survey se ha analizado la relación entre el uso de internet y la percepción de bienestar- medida a través de autoevaluaciones de nivel de felicidad y satisfacción con la vida de las personas incluidas en la encuesta. Además, factores sociodemográficos tales como edad, género, nivel de ingresos o país también han sido evaluados. Tras aplicar distintos análisis estadísticos los resultados concluyen, entre otros, que las personas que no han utilizado previamente internet incrementan su bienestar al incrementar su frecuencia de uso. . Y también que el uso de internet influye de forma distinta en las personas dependiendo de sus características sociodemográficas. Se presentan los resultados y conclusiones adicionales para su discusión.
Vidas lloradas, capitalismo neoliberal y crisis de sostenibilidad de la vida
Authors: Guaglianone Fiorella 
Published: May 2020

El presente trabajo pretende esbozar algunas reflexiones en torno a las operaciones de inclusión/exclusión ligadas a los problemas de reproducción de la vida afrontadas por migrantes y mujeres mestizas, negras e indias, en el marco de los debates actuales de las teorías políticas feministas. Exploraremos algunas conceptualizaciones vinculadas a los feminicidios sexuales sistémicos y las tareas globales de cuidado deteniéndonos en su particular relación con el régimen visual neoliberal.
Museo Clifford Still
Authors: Allied Works Studio: 
Published: May 2020

<p>Denver, Colorado, Estados Unidos, 2011</p><p><span>El Museo Clyfford Still está dedicado a la vida y obra de uno de los pintores más enigmáticos e influyentes del siglo XX. Still manifestó que la colección se confiaría a una ciudad estadounidense y que se alojara en un museo de un solo artista, liberado de otras obras o distracciones. <span>Construido con muros de hormigón texturizado profundamente estriados, el museo es un único cuerpo, una forma continua abierta en todos sus lados. La entrada, enraizada a la línea de tierra, se sitúa en la esquina en doble voladizo, creando una sensación de cercanía y reduciendo los niveles de iluminación. </span></span></p>
Comparison of some meat quality and liver characteristics in Muscovy and mule ducks
Authors: Kokoszyński Dariusz , Wilkanowska Anna , Arpášová Henrieta , Hrnčár Cyril 
Published: May 2020

Abstract. The aim of the study was to compare Muscovy ducks and mule ducks
for proximate analysis, colour attributes, sensory properties of the meat,
and concentration of some minerals in the meat and liver, with consideration
of the effect of sex on the analysed traits. The study used 46 Muscovy and
44 mule ducks. At the end of the rearing period, 40 birds (10 males and 10 females of each genotype) were selected for slaughter. Meat and liver
samples were collected from the slaughtered birds to determine quality
traits. The analysed ducks of different genotypes differed significantly in
the water content, sodium content, and redness of breast muscles; in the
water, fat, and zinc content of leg muscles; and in the sodium, iron, and
copper content of liver. Regardless of genotype, males had a higher sodium
content in breast muscles; contained more protein, sodium, phosphorus, and
magnesium and less potassium and copper in leg muscles; and had a
significantly higher content of sodium, potassium, phosphorus, magnesium,
zinc, iron, and copper in liver compared to females. The genotype–sex interaction was significant for the sodium and potassium content of
breast muscles, for the water, protein, sodium, potassium, phosphorus, magnesium, and
copper content of leg muscles, and for the copper content of liver. Our
study provided information about differences in the quality of meat and
liver in Muscovy and mule ducks.
A Tethered Air Blimp (TAB) for observing the microclimate over a complex terrain
Authors: Nambiar Manoj K. , Byerlay Ryan A. E. , Nazem Amir , Nahian M. Rafsan , Moradi Mohsen , Aliabadi Amir A. 
Published: May 2020

Abstract. This study presents the first environmental monitoring field campaign of a newly developed Tethered Air Blimp (TAB) system to investigate the microclimate over a complex terrain. The use of a tethered balloon in complex terrains such as mines and tailings ponds is novel and the focus of the present study. The TAB system was fully developed and launched at a mining facility in northern Canada in May 2018. This study describes the key design features, the sensor payload on board, calibration, and the observations made by the TAB system. The system measured meteorological conditions including components of wind velocity vector, temperature, relative humidity, and pressure over the first few tens of metres of the atmospheric boundary layer. The measurements were made at two primary locations in the facility: (i) near a tailings pond and (ii) in a mine pit. TAB measured the dynamics of the atmosphere at different diurnal times (e.g. day versus night) and locations (near a tailings pond versus inside the mine). Such dynamics include mean and turbulence statistics pertaining to flow momentum and energy, and they are crucial in the understanding of emission fluxes from the facility in future studies. In addition, TAB can provide boundary conditions and validation datasets to support mesoscale dispersion modelling or computational fluid dynamics simulations for various transport models.
“Juntos somos fortes”
Authors: Santos Leonardo Soares 
Published: May 2020

Este artigo trata da intervenção das organizações políticas camponesas na produção agrária e conflitos rurais no cinturão verde do Rio de Janeiro. Durante a Era Populista (1945-64) na zona rural desta cidade, uma urbanização intensiva das áreas agrícolas mudou as relações de produção e as formas de ocupação da terra. Os territórios entre a frente urbana e os locais suburbanos foram rapida e intensamente ocupadas por residencias e indústrias.
Não-intensionalmente ou intensionalmente, isso destruiu muitas das antigas plantações e práticas tradicionais. Os pequenos lavradores começaram a resistir contra aquela expropriação e exploração. Para tanto, eles criaram várias organizações camponesas na zona rural: Sindicatos rurais, Ligas Camponesas, Cooperativas, Associações de Pequenos Lavradores, Intendências Agrícolas.
Estágio em docência: uma perspectiva de extensão universitária em um estabelecimento penal de regime fechado
Authors: Lemes Isabella Beatriz Gonçalves , Reis Cássia Barbosa 
Published: May 2020

Resumo: O presente artigo visa apresentar os desdobramentos das práticas apre(e)ndidas em estágio em docência pelo Programa de Pós-Graduação – Mestrado Profissional - Ensino em Saúde (PPGES), da Universidade Estadual de Mato Grosso do Sul (UEMS), campus de Dourados/MS. O estágio foi realizado junto aos alunos do oitavo período do curso de graduação em enfermagem, por meio de extensão universitária em um estabelecimento penal de regime fechado, sob luz da disciplina vigilância em saúde. Os resultados demonstraram o fortalecimento das relações sociedade-universidade, além da interação do aluno com situações-problema reais na comunidade, neste caso, aproximando-os aos desafios de discutir saúde e população prisional, cenário este que tende a representações de descriminação e exclusão pela sociedade.
Palavras-chave: Ensino; Extensão; Prisões.