bluuebunny/crossref_metadata_2025 huggingface dataset:
Estilo de aprendizaje reflexivo y burnout académico en maestrandos de Docencia e Investigación en Salud
Authors: Palomino Rocha Katia
Published: December 2020

Objetivo.  Determinar la relación entre los estilos de aprendizaje y el síndrome de burnout en maestrandos en Docencia e Investigación en Salud de la UNMSM,2018. Métodos. La investigación fue descriptiva correlacional, prospectiva, de corte transversal; se realizó un muestreo probabilístico aleatorio simple, resultando una muestra de 95 maestrandos a quiénes se les aplicó una encuesta a través de un cuestionario. Resultados. El estilo de aprendizaje de los maestrandos fue, de mayor a menor aparición. reflexivo (55,8 %), pragmático (21,1 %), activo (15,8 %) y teórico (7,4 %). La prevalencia de síndrome de burnout académico en su gran mayoría fue “leve” (58,9 %), seguido de “moderado” (28%) y “no presentan burnout” (12,6 %). Conclusión. No existe relación entre los estilos de aprendizaje y el síndrome de burnout académico de los maestrandos, siendo el estilo de aprendizaje predominante el reflexivo y presentando burnout académico leve.
Use of Polio Vaccine Salk vs SARS- CoV-2E and HIV-1E 2, both as Therapeutic Drug and Effective Vaccine to Make Memory-Cells Able to Stop Reinfections
Authors: Ansovini R , Compagnucci L
Published: December 2020

Dr. Ansovini began studying viruses by focusing his attention on HIV-1. The main discovery he made is that this virus, so difficult to treat, can be classified as “electrical”: one of its functional proteins, i.e. “p. 24”, actually has an electrical value, in other words it has a charge, and therefore it is not allosterically neutral as proteins usually are.
Development of a Model for the Establishment of a Hydro Electric Power Generating Plant
Authors: G. A Adepoju , Austin Oshin Ola , Lasisi Kabir A. , Adeniyi Ajayi Joseph , Alonge Oluwasanmi
Published: December 2020

Nigeria as a nation has suffered a lot when it comes to the availability of electricity. A clear comparison between this nation’s electric power supply and other countries revealed the present incessant electric power supply in the country. The average power per capital (watts per person) in the United States is 1,377 Watts. In Canada, it is as high as 1,704 Watts per person and in South Africa; it is 445 Watts per person. The average power per capital in Australia is 1,112 Watts and in New Zealand it is 1,020 W per person. Whereas, the average power per capital (watts per person) in Nigeria is 14 W person. The power system structure is characterized with a lot of faults and outages. These electric power problem has destroyed the industrial processes in the country. As a result, unemployment has increased in the country. As at February, 2020, according to the Federal Government of Nigeria, the number of unemployed youths in the country is 23 million. Data from the International Transparency in the United State stated that there are 40 million unemployed youths in the country. This has increased crime rates among the youths. The country experience a high level of hardship, insecurity and socio-economic disorder as results. Therefore, there is an urgent need to solve this incessant supply of electric power in the country. Hence, a detail study of Akure132/33kV substation Network of the Benin Electricity Distribution Company under which there are 84,264 customers was carried out.
Characterization and Nanofluid Stability of CoFe2O4-APTES and CoFe2O4-PVA Nanoparticles
Authors: Roslan Anis Arisa , Mohd Zaid Hasnah , Zaine Siti Nur Azella , Umar Mursyidah , Guan Beh Hoe
Published: December 2020

Nanofluid contains nanoparticles that enhanced the property of the base fluid. However, the separating layer between the nanoparticles and base fluids may interfere the nanofluids performance. Studies have been made that surface modification of nanoparticles may improve the dispersion of nanoparticles in base fluids. This paper reports the study of the colloidal stability of surface modified nanoparticles using a polymer and an amino-silane. The nanoparticles were prepared by one-step and two-step methods using cobalt iron oxide nanoparticles with brine solution and deionized water as the base fluids. Functionalization by surface modification of the nanoparticles to enhance the nanofluids stability was carried out using (3-aminopropyl) triethoxysilane (APTES) and polyvinyl alcohol (PVA). Characterization using Fourier Transform Infrared (FTIR), Field Emission Scanning Electron Microscope (FESEM) and X-ray Powder Diffraction (XRD) were performed to study the functionality and morphology of the synthesized nanoparticles. The extra IR peaks such as Si-O-Si at 1063 cm-1 for CoFe2O4-APTES and C=O at 1742 cm-1 for CoFe2O4-PVA showed that there are additional elements in the cobalt ferrite due to functionalization. The size of synthesized CoFe2O4-APTES ranged between 15.99 nm to 26.89 nm while CoFe2O4-PVA is from 25.70 nm to 54.16 nm. The stability of the nanofluid were determined via zeta potential measurements. CoFe2O4-APTES nanofluid has zeta potential of -35.7 mV compared to CoFe2O4-PVA at -15.5 mV.
Clusterin Protects Lipotoxicity-Induced Apoptosis via Upregulation of Autophagy in Insulin-Secreting Cells
Authors: Hong Seok-Woo , Lee Jinmi , Kim Min Jeong , Moon Sun Joon , Kwon Hyemi , Park Se Eun , Rhee Eun-Jung , Lee Won-Young
Published: December 2020

Background: There is a great need to discover factors that could protect pancreatic β-cells from apoptosis and thus prevent diabetes mellitus. Clusterin (CLU), a chaperone protein, plays an important role in cell protection in numerous cells and is involved in various cellular mechanisms, including autophagy. In the present study, we investigated the protective role of CLU through autophagy regulation in pancreatic β-cells.Methods: To identify the protective role of CLU, mouse insulinoma 6 (MIN6) cells were incubated with CLU and/or free fatty acid (FFA) palmitate, and cellular apoptosis and autophagy were examined.Results: Treatment with CLU remarkably upregulated microtubule-associated protein 1-light chain 3 (LC3)-II conversion in a doseand time-dependent manner with a significant increase in the autophagy-related 3 (Atg3) gene expression level, which is a mediator of LC3-II conversion. Moreover, co-immunoprecipitation and fluorescence microscopy experiments showed that the molecular interaction of LC3 with Atg3 and p62 was markedly increased by CLU. Stimulation of LC3-II conversion by CLU persisted in lipotoxic conditions, and FFA-induced apoptosis and dysfunction were simultaneously improved by CLU treatment. Finally, inhibition of LC3-II conversion by Atg3 gene knockdown markedly attenuated the cytoprotective effect of CLU.Conclusion: Taken together, these findings suggest that CLU protects pancreatic β-cells against lipotoxicity-induced apoptosis via autophagy stimulation mediated by facilitating LC3-II conversion. Thus, CLU has therapeutic effects on FFA-induced pancreatic β-cell dysfunction.
Two Young Planetary Systems around Field Stars with Ages between 20 and 320 Myr from TESS
Authors: Zhou George , Quinn Samuel N. , Irwin Jonathan , Huang Chelsea X. , Collins Karen A. , Bouma Luke G. , Khan Lamisha , Landrigan Anaka , Vanderburg Andrew M. , Rodriguez Joseph E. , Latham David W. , Torres Guillermo , Douglas Stephanie T. , Bieryla Allyson , Esquerdo Gilbert A. , Berlind Perry , Calkins Michael L. , Buchhave Lars A. , Charbonneau David , Collins Kevin I. , Kielkopf John F. , Jensen Eric L. N. , Tan Thiam-Guan , Hart Rhodes , Carter Brad , Stockdale Christopher , Ziegler Carl , Law Nicholas , Mann Andrew W. , Howell Steve B. , Matson Rachel A. , Scott Nicholas J. , Furlan Elise , White Russel J. , Hellier Coel , Anderson David R. , West Richard G. , Ricker George , Vanderspek Roland , Seager Sara , Jenkins Jon M. , Winn Joshua N. , Mireles Ismael , Rowden Pamela , Yahalomi Daniel A. , Wohler Bill , Brasseur Clara. E. , Daylan Tansu , Colón Knicole D.
Published: December 2020

Planets around young stars trace the early evolution of planetary systems. We report the discovery and validation of two planetary systems with ages ≲300 Myr from observations by the Transiting Exoplanet Survey Satellite (TESS). The

Myr old G star TOI-251 hosts a

mini-Neptune with a

day period. The

Myr old K star TOI-942 hosts a system of inflated Neptune-sized planets, with TOI-942b orbiting in a period of

days with a radius of

and TOI-942c orbiting in a period of

days with a radius of

. Though we cannot place either host star into a known stellar association or cluster, we can estimate their ages via their photometric and spectroscopic properties. Both stars exhibit significant photometric variability due to spot modulation, with measured rotation periods of ∼3.5 days. These stars also exhibit significant chromospheric activity, with age estimates from the chromospheric calcium emission lines and X-ray fluxes matching that estimated from gyrochronology. Both stars also exhibit significant lithium absorption, similar in equivalent width to well-characterized young cluster members. TESS has the potential to deliver a population of young planet-bearing field stars, contributing significantly to tracing the properties of planets as a function of their age.
Center for Astrophysics Optical Infrared Science Archive. I. FAST Spectrograph
Authors: Mink Jessica , Brown Warren R. , Chilingarian Igor V. , Fabricant Daniel , Kurtz Michael J. , Moran Sean , Rhee Jaehyon , Tokarz Susan , Wyatt William F.
Published: December 2020

We announce the public release of 141,531 moderate-dispersion optical spectra of 72,247 objects acquired over the past 25 yr with the FAST Spectrograph on the Fred L. Whipple Observatory 1.5 m Tillinghast telescope. We describe the data acquisition and processing so that scientists can understand the spectra. We highlight some of the largest FAst Spectrograph for the Tillinghast Telescope (FAST) survey programs, and make recommendations for use. The spectra have been placed in a Virtual Observatory–accessible archive and ready for download.
Improvements to Pan-STARRS1 Astrometry Using Gaia
Authors: Lubow Stephen H. , White Richard L. , Shiao Bernie
Published: December 2020

We use the Gaia DR2 catalog to improve the astrometric accuracy of about 1.7 billion objects in Pan-STARRS1 Data Release 2 (PS1 DR2). We also obtain proper motions for these PS1 objects. The cross-match between Gaia and PS1 reveals residuals that are correlated on a scale of about 1′. We apply a spatially adaptive correction algorithm for all PS1 objects having more than two detections to reduce these residuals and align the object positions to Gaia. For point-like PS1 objects that cross-match to Gaia, the algorithm reduces PS1/Gaia residuals by 33% in position (median value of 13.5 mas reduced to 9.0 mas) and by 24% in proper motion (median value of 6.3 mas yr−1 reduced to 4.8 mas yr−1). The residuals for the corrected positions are smallest for objects with the most point-like morphologies and with intermediate magnitudes of about 17 mag. The residual errors in decl. are systematically larger than those in R.A.; the decl. errors increase with zenith angle in proportion to the air mass of the observations. The decl. positional residuals at a given decl. generally vary with color and are consistent with the effects of differential atmospheric refraction. In principle, these residuals could be reduced further by taking into account object color.
Radial Segregation between Red Giant Populations in the Globular Cluster NGC 3201: Tentative Role of Varying Mass among the Progenitors
Authors: Kravtsov Valery , Calderón Francisco A.
Published: December 2020

In the globular cluster NGC 3201, we study subpopulations (SPs) of red giants (RGs) distinguished by their characteristics. In its central part, we make use of multicolor Hubble Space Telescope (HST) photometry coupled with spectroscopy of RGs spread out over a larger cluster face. In the color index CI

, RGs commonly referred to as first generation, SPI, are separated from the counterparts of the second generation, SPII. The latter are more concentrated than the former at a confidence level of P = 93%, within the field covered by the HST photometry. Their minor portion (∼28%, SPIIm) located in the middle of the δCI range spanned across the split RG branch relative to the splitting edge is more centrally concentrated at a higher confidence level of 96%. We found, from the [Na/Fe]−δCI plot for RGs in common between the photometry and spectroscopy, that SPI and SPII are mostly overlapped within 0.0 < [Na/Fe] < 0.3. RGs with [Na/Fe] < 0.0 (mostly SPI) keep their lower concentration to the cluster center over larger radial distance as compared to SPII RGs with [Na/Fe] > 0.3 at a confidence level of P = 88%. It is increased up to 95% if a restriction on [O/Fe] is imposed. The obtained result, particularly in the central part, is a clue that SPIIm RGs are the descendants of more massive progenitors. Of these RGs approximately one-third probably originate from recent (within the past 1.5 Gyr) blue stragglers with M
BS > 1.1M
☉, and the other two-thirds could be accounted for by older collision products of primordial MS stars.
De l’anxiété dans la congruence : de la congruence dans l’anxiété
Authors: Neville Bernie , Alleaume Baptiste
Published: December 2020

Søren Kierkegaard propose que c’est notre capacité au désespoir et à l’anxiété qui fait que nous sommes humains. Il suggère que le désespoir est une indication de notre capacité à être plus que ce que nous sommes dans l’instant. Nous ressentons l’anxiété et le désespoir parce que notre potentiel est toujours plus grand que nous-mêmes dans l’instant, quand notre processus vivant est bloqué ou frustré. Tant que nous ne sommes pas tout ce que nous pouvons être, nous sommes anxieux, que nous en soyons conscients ou non. Même sans notre anxiété existentielle, nous avons des raisons suffisantes pour être anxieux. Nous percevons une anxiété cosmique, une anxiété politico-sociale, une anxiété environnementale. Le monde ne va pas bien. Nous pouvons essayer de séparer notre conscience de notre expérience par nos techniques de déni diverses, mais notre organisme sait mieux, et notre déni ne fait qu’augmenter notre stress. La congruence implique de sortir du déni, et d’être ouvert à notre anxiété organismique.
Industrie et développement au Cameroun : les dynamiques d’un État dans l’« émergence »
Authors: Khan-Mohammad Guive , Amougou Gérard
Published: December 2020

L’industrialisation occupe une place centrale dans la nouvelle ingénierie de l’émergence au Cameroun. Le retour des pouvoirs publics dans la planification des politiques de développement est examiné ici à travers les projets de construction des infrastructures matérielles, de réformes institutionnelles et de financement du développement des entreprises. Il apparaît nettement que l’écart entre les objectifs déclarés, soit l’image présentée de lui-même par un régime soucieux de se construire une nouvelle légitimité, et les résultats atteints, soit les pratiques de l’État, informent sur les dynamiques du pouvoir dans le projet politique, économique et social de l’« émergence ». Notre terrain de recherche montre que cette configuration contribue à la réactualisation des logiques autour desquelles s’est historiquement structuré le pouvoir au Cameroun. Toutefois, même si les dynamiques de l’État convergent vers une préservation du statu quo , le projet de l’« émergence » s’accompagne de transformations importantes qui attestent la plasticité d’un régime capable de réinventer les formes de ce statu quo en permanence dans le but de garantir sa stabilité.
Souverainistes et libéraux en lutte au sein du champ de l’Eurocratie
Authors: Faure Samuel B. H.
Published: December 2020

Qui a défendu la constitution d’un marché intérieur de la défense au sein du champ de l’Eurocratie à la suite de l’adoption en 2009 du « paquet défense » ? Cette analyse met en lumière les acteurs de l’armement qui ont travaillé à ce changement d’action publique et ceux qui s’y sont opposés. M’appuyant sur une enquête de terrain, j’établis que cette rivalité au sommet de l’Union européenne ne se réduit ni aux intérêts nationaux qui opposent entre eux les États membres ni au clivage institutionnel attendu entre la Commission européenne et les États de l’UE. Les acteurs de l’armement défendant l’adoption du paquet défense sont des États membres et des institutions de l’UE, des acteurs publics et des acteurs industriels privés. À partir d’une approche « programmatique » se situant à la croisée de la sociologie de l’action publique européenne et de la sociologie des élites, je mets en lumière deux « associations » d’acteurs en lutte, les « souverainistes » et les « libéraux », qui se positionnent respectivement en adversaires et en partisans de l’adoption du paquet défense. Cette approche contribue à l’étude de la structuration du champ de l’Eurocratie au xxi e siècle.
Les conflits d’intérêts à l’épreuve des lanceurs d’alerte : recherche-intervention dans le cadre de la réglementation Sapin II
Authors: Cailleba Patrice , Dufour Nicolas
Published: December 2020

Cet article envisage une problématique essentielle en gestion des risques et inhérente à la fonction de risk manager , la capacité des gestionnaires de risques à réaliser et à faire remonter à la gouvernance des alertes sur les risques de l’organisation. En abordant des perspectives tant théoriques que managériales et en nous appuyant sur différentes études de cas dans le secteur des assurances et des mutuelles, nous traitons cette question de recherche tant du point de vue de l’aspect normatif traditionnel du risk manager que de celui qui lui semble de plus en plus dévolu, comme c’est le cas en France depuis le dispositif anticorruption de la loi Sapin II, de garant d’une orthodoxie de gestion dépassant le strict cadre de la légalité et s’étendant aux aspects de légitimité et de moralité.
Le dadaïsme et le surréalisme chez Paulhan : pour une appréhension des discours et des dynamiques littéraires
Authors: Demont François
Published: December 2020

Cette contribution traite de la manière dont Paulhan aborde le dadaïsme et le surréalisme dans son discours critique. Si Paulhan n’est pas à proprement parler un « historien de la littérature », son analyse des avant-gardes n’est pas pour autant anhistorique. S’opposant à l’histoire littéraire lansonnienne qui accorde selon lui trop de place aux auteurs, Paulhan défend une prise en considération historique des dynamiques discursives au sein du champ littéraire.
La préface chez Paulhan, lieu de la critique ?
Authors: Koskas Camille
Published: December 2020

Si l’un des rôles du préfacier est de donner au lecteur les armes pour faciliter une lecture pertinente, Paulhan semble plutôt s’employer à désarçonner celui-ci : la préface aboutit souvent au constat de l’insondable mystère de l’œuvre à venir. D’autre part, les préfaces qu’ils a signées forment un corpus mouvant et hétéroclite, de la note en revue à l’élément paratextuel. Nous avons cherché à nous demander si celles-ci constituaient malgré tout un lieupossible de la critique qui « compenserait » l’absence de monographie écrite par Paulhan sur les écrivains aimés.
Intériorité profonde, immédiateté de la transparence et pauvreté de l’expérience : trois prismes sur la guerre moderne
Authors: Brosteaux Déborah
Published: December 2020

Cet article interroge la manière dont la guerre devient le lieu, de part et d’autre des deux Guerres mondiales, depuis lequel se déploie une double scène de la violence, entre exposition et profondeur : d’une part un monde de plus en plus à découvert, où tout semble exposé à la violence, et où celle-ci s’allie à des exigences de luminosité continue et illimitée ; de l’autre, la guerre ne va pas cesser d’être réinvestie par de nouveaux appels des profondeurs, de nouvelles requêtes d’intériorité. L’article propose de chercher chez Walter Benjamin, dont les écrits des années trente sont hantés par la nécessité d’extraire la pensée de l’horizon de la guerre, une prise qui permet de résister à ces deux gestes et à leurs dialectiques infernales. Nous construisons cette prise à partir de ce que Benjamin nomme la pauvreté de l’expérience, et notamment la manière dont celle-ci convoque un matériau particulier : le verre et les nouveaux espaces qu’il rend pensables. L’évocation du verre est toute entière imbriquée dans des images de la violence : elle permet de fictionner des manières d’y résister, mais en partant de sa proximité avec elles, et non en rêvant leur dépassement.
« C’est ouvert au public ces procès ? » , les secrets d’une scène d’audience au prisme de la lutte contre le terrorisme
Authors: Mégie Antoine
Published: December 2020

S’intégrant dans une étude ethnographique du pouvoir pénal à l’épreuve de la violence terroriste, cet article a pour objet d’interroger le rituel des audiences de jugements au prisme de la problématique du secret et de ce qu’elle emporte en termes de recompositions de l’État et de son action judiciaire. À partir de l’observation de plus de 130 procès depuis 2015, la compréhension des enjeux liés à la publicisation des audiences, à la judiciarisation des renseignements en éléments de preuve ou encore à la fabrication des condamnations, nous permettra de dévoiler les dynamiques sociales, juridiques et politiques d’une justice sous urgence.
Forfait obstétrical et inégalités dans l’accès aux soins maternels en Mauritanie
Authors: Audibert Martine , N’Landu Anaïs , Ravit Marion , Raffalli Bertille , Ravalihasy Andrainolo , Ridde Valéry , Dumont Alexandre
Published: December 2020

La Mauritanie a introduit en 2002 un système de prépaiement des soins de santé maternelle, le forfait obstétrical. L’objectif de cette étude est de savoir si le forfait améliore la qualité de l’accès et réduit les inégalités dans le recours aux soins obstétricaux. Les données sont celles de l’enquête ménages MICS-Mauritanie de 2015. Deux méthodes ont été utilisées. La première est la méthode des indices de concentration. La seconde est la méthode de décomposition des inégalités par fonction d’influence recentrée qui estime des effets marginaux en tenant compte des caractéristiques des individus. Le forfait obstétrical permet aux femmes enceintes d’accéder à des soins de meilleure qualité et contribue à la réduction des inégalités d’accès. Classification JEL  : I13, I14, I18.
L’émergence des lieux de retraite et de réflexion pour entrepreneurs créatifs
Authors: Marinos Clément
Published: December 2020

En complément des espaces de travail collaboratifs dont font partie les espaces de coworking , les lieux de retraite et de réflexion pour entrepreneurs créatifs et travailleurs indépendants se développent dans les territoires périphériques. Ce phénomène récent interroge le lien entre lieu de vie et lieu de travail pour ces populations. Si la recherche d’effet de réseaux, souvent liée à la densité urbaine, semble paradigmatique dans l’économie de la connaissance, que nous enseignent ces lieux implantés dans des territoires périphériques et peu denses, qui se veulent propices à la créativité entrepreneuriale, tout en échappant aux phénomènes de conformisme et d’imitation ? En s’appuyant sur une approche monographique d’un de ces espaces, l’article propose de définir un cadre exploratoire pour ce qu’il convient de désigner comme des quart-lieux, au centre d’un triptyque « domicile – bureau – vacances ». Classification JEL  : R58, P25, O31, L26
Le contexte d’émergence d’une industrie du jeu vidéo en France (1975-1988)
Authors: Sidre Colin
Published: December 2020

Les conditions de naissance des industries européennes du jeu vidéo sont à ce jour peu documentées. L’étude de la naissance de l’industrie vidéoludique française, en particulier autour de l’année 1983, met pourtant en évidence plusieurs singularités propres tout d’abord à des dynamiques européennes et nationales : développement de l’industrie vidéoludique sur micro-ordinateurs, importance du hobbyisme, place du logiciel éducatif dans l’industrie française du logiciel, soutien de l’État à la production nationale. L’étude de ces caractéristiques peut nous aider à mieux appréhender celles de l’industrie nationale d’aujourd’hui.
Le bonheur est dans l’indé ?
Authors: Zabban Vinciane , Ter Minassian Hovig , Noûs Camille
Published: December 2020

La sphère dite « indépendante » de création de jeux vidéo connaît un élargissement constant depuis plusieurs années. À partir d’une enquête sur les trajectoires des travailleuses et travailleurs de jeux vidéo, nous montrons la multiplicité des modes de faire et la diversité des motifs du recours aux formes alternatives au travail dans les grands studios (freelance, auto-entrepreneuriat, micro-entreprise, etc.). Notre analyse nous amène à interroger ce phénomène dans la perspective d’une forme de « domestication » du travail, qui s’appuie sur une infrastructure technique, informationnelle et sociale. Nous soulignons notamment comment ces statuts souvent rassemblés sous une même étiquette d’« indépendant » se présentent comme des étapes dans des carrières plus longues, rendues possibles par la porosité des milieux qui constituent l’industrie du jeu vidéo en France. Enfin, nous montrons les appuis et ressources que ces travailleuses et travailleurs de jeux vidéo peuvent mobiliser, entre ancrage local et inscription dans des marchés globalisés.
Une profession de l’authenticité
Authors: Coavoux Samuel , Roques Noémie
Published: December 2020

L’émergence de vidéastes spécialisés produisant des contenus en direct (streaming) sur Twitch, ou des vidéos sur YouTube, a bouleversé l’industrie des jeux vidéo. Les jeux sont désormais conçus pour intégrer les contraintes liées à la diffusion publique des parties. Comme dans de nombreux secteurs, les producteurs de vidéo en ligne sont devenus des prescripteurs concurrents des médias spécialisés. Sur quoi repose leur légitimité à juger des jeux vidéo, et comment contribuent-ils à la production de la valeur des jeux ? Cet article décrit les relations construites entre les vidéastes et leurs publics, à partir d’une enquête qualitative sur ces deux populations. Au-delà des régimes de l’expertise et de l’indépendance mobilisés par la presse, les vidéastes s’appuient sur un régime de proximité. L’article montre en quoi les spectateurs sont attachés à un nombre restreint de vidéastes et tirent leur plaisir de la relation de proximité qui se noue entre eux. Les vidéastes construisent cette proximité en travaillant une image de personnes authentiques : ordinaires, originales et intègres. L’article met ainsi en évidence les formes de l’attachement particulier des spectateurs aux vidéastes. Enfin, il analyse les conséquences de cette relation sur le travail des vidéastes, en particulier dans l’importance du travail émotionnel et les risques qu’il fait peser sur l’intimité.
Autour d’un tableau de Jules Denneulin (1894) : peindre « en amateur » et peindre « en plein air », une image du travail artistique
Authors: Viraben Hadrien
Published: December 2020

Tandis que le paysage d’après nature s’établit, dès le xviii e  siècle, comme le genre privilégié et emblématique des artistes amateurs, le plein air devint, dans la seconde moitié du xix e  siècle, une pratique professionnelle surexposée. Témoignage de cette cohabitation dans un même espace de deux groupes de créateurs antagonistes, Un peintre amateur , présenté par Jules Denneulin au Salon en 1894, relève précisément d’une tentative pour établir visuellement une spécificité de la pratique des amateurs. À la lumière de la « déprofessionnalisation » contemporaine du monde de l’art et de l’indistinction croissante entre artistes amateurs et professionnels, l’œuvre invite ainsi à apprécier toute la distance que son auteur voulut mettre entre deux images, celle de l’amateurisme et celle du travail artistique.
« S’occuper des mathématiques sans y être obligé » : pratiques professionnelles des mathématiciens amateurs en France au XIX e siècle
Authors: Goldstein Catherine
Published: December 2020

Alors que les structures associées à l’exercice professionnel actuel d’un métier de mathématicien se mettent en place en France au cours du xix e  siècle, il s’avère difficile de définir des critères qui discrimineraient de manière satisfaisante les amateurs de ces nouveaux professionnels, tant au niveau de leurs réseaux que de leurs pratiques. Nous examinons ici les points de rencontre, tant sociaux que disciplinaires, entre ceux qui s’occupent de mathématiques par profession ou par goût, ainsi que les particularités éventuelles de leurs interventions. La professionnalisation croissante des mathématiques fabrique aussi de fait, à plusieurs échelles, des chercheurs en mathématiques, non rémunérés comme tels, aux frontières de la science académique.
« Illuminez ma fantaisie » : les « Fantaisies en prose » de Charles Cros, nouvel avatar du poème en prose
Authors: Piantoni Antoine
Published: December 2020

Dans la catégorie éminemment flottante du poème en prose tel qu’il se déploie au xix e  siècle, les « Fantaisies en prose » de Charles Cros, rassemblées dans la dernière section du Coffret de santal en 1879, se donnent à lire comme une variation expérimentale tout aussi audacieuse que Les Illuminations de Rimbaud ou les Notes parisiennes de Germain Nouveau. Le poète concentre dans ce noyau sombre innovations formelles et vertige métaphysique qui redonnent tout son sens à la notion de fantaisie, aux antipodes d’une forme de légèreté et de désinvolture à laquelle la critique s’est souvent contentée de la réduire. En ce sens, dans le dernier quart du siècle, elle s’obscurcit graduellement et se confond momentanément avec une certaine négativité et la hantise de l’échec, littéraire comme existentiel. C’est cette précarité habilement mise en scène que nous entendons questionner dans cet article, tout en nous efforçant de dégager la manière spécifique de Cros.
A Pólya–Vinogradov inequality for short character sums
Authors: Bordignon Matteo
Published: December 2020

In this paper, we obtain a variation of the Pólya–Vinogradov inequality with the sum restricted to a certain height. Assume
$\chi $
to be a primitive character modulo q,
$ \epsilon>0$
and
$N\le q^{1-\gamma }$
, with
$0\le \gamma \le 1/3$
. We prove that
$$ \begin{align*} |\sum_{n=1}^N \chi(n) |\le c (\tfrac{1}{3} -\gamma+\epsilon )\sqrt{q}\log q \end{align*} $$
with
$c=2/\pi ^2$
if
$\chi $
is even and
$c=1/\pi $
if
$\chi $
is odd. The result is based on the work of Hildebrand and Kerr.
Renormalising SPDEs in regularity structures
Authors: Bruned Yvain , Chandra Ajay , Chevyrev Ilya , Hairer Martin
Published: December 2020

The formalism recently introduced in [BHZ19] allows one to assign a regularity structure, as well as a corresponding “renormalisation group”, to any subcritical system of semilinear stochastic PDEs. Under very mild additional assumptions, it was shown in [CH16] that large classes of driving noises exhibiting the relevant small-scale behaviour can be lifted to such a regularity structure in a robust way, following a renormalisation procedure reminiscent of the BPHZ procedure arising in perturbative QFT.

The present work completes this programme by constructing an action of the renormalisation group on a suitable class of stochastic PDEs which is intertwined with its action on the corresponding space of models. This shows in particular that solutions constructed from the BPHZ lift of a smooth driving noise coincide with the classical solutions of a modified PDE. This yields a very general black box type local existence and stability theorem for a wide class of singular non-linear SPDEs.
A global Torelli theorem for singular symplectic varieties
Authors: Bakker Benjamin , Lehn Christian
Published: December 2020

We systematically study the moduli theory of symplectic varieties (in the sense of Beauville) which admit a resolution by an irreducible symplectic manifold. In particular, we prove an analog of Verbitsky’s global Torelli theorem for the locally trivial deformations of such varieties. Verbitsky’s work on ergodic complex structures replaces twistor lines as the essential global input. In so doing we extend many of the local deformation-theoretic results known in the smooth case to such (not-necessarily-projective) symplectic varieties. We deduce a number of applications to the birational geometry of symplectic manifolds, including some results on the classification of birational contractions of

K3^[n]

-type varieties.
The TeleHealth OSCE: Preparing Trainees to Use Telemedicine as a Tool for Transitions of Care
Authors: Sartori Daniel J. , Hayes Rachael W. , Horlick Margaret , Adams Jennifer G. , Zabar Sondra R.
Published: December 2020

Background

Telemedicine holds promise to bridge the transition of care between inpatient and outpatient settings. Despite this, the unique communication and technical skills required for virtual encounters are not routinely taught or practiced in graduate medical education (GME) programs.

Objective

To develop an objective structured clinical examination (OSCE) case to assess residents' telemedicine-specific skills and identify potential gaps in our residency program's curriculum.

Methods

As part of a multi-station OSCE in 2019, we developed a case simulating a remote encounter between a resident and a recently discharged standardized patient. We developed an assessment tool comprising specific behaviors anchored to “not done,” “partly done,” and “well done” descriptors to evaluate core communication and telemedicine-specific skills.

Results

Seventy-eight NYU internal medicine residents participated in the case. Evaluations from 100% of participants were obtained. Residents performed well in Information Gathering and Relationship Development domains. A mean 95% (SD 3.3%) and 91% (SD 4.9%) of residents received “well done” evaluations across these domains. A mean 78% (SD 14%) received “well done” within Education/Counseling domain. However, only 46% (SD 45%) received “well done” evaluations within the Telemedicine domain; specific weak areas included performing a virtual physical examination (18% well done) and leveraging video to augment history gathering (17% well done). There were no differences in telemedicine-specific skill evaluations when stratified by training track or postgraduate year.

Conclusions

We simulate a post-discharge virtual encounter and present a novel assessment tool that uncovers telemedicine-specific knowledge gaps in GME trainees.
Štátny Archeologický ústav a jeho aktivity v roku 1940 vo svetle archívneho výskumu
Authors: Neumann Martin
Published: December 2020

In 1940 State Archaeological Institute celebrated its first anniversary. However, there was no reason for celebrating. Institute continually suffered under insufficient funding which negatively influenced its activities. During the first 5 months of 1940 no archaeological excavations took place. Only in June the first proper excavation began in Kožany. Nevertheless, even this excavation was affected by financial problems. However, the head of the Institute – Vojtech Budaváry – never gave up. He continued with his scientific research and rescuing of archaeological finds across the whole country at the same intensity. In this paper it will be tried to document his activities in 1940 which overlapped with activities of the Institute. New insight will be provided by research in the Archive of the former State Archaeological Institute.
How Preservice Content Teacher Background Qualities Influence Their Attitude and Commitment to Supporting Multilingual Learners
Authors: Agostinelli Adam Valentin , McQuillan Patrick
Published: December 2020

With the growing number of multilingual learners (MLs) in U.S. schools, research relating to effective teacher training methods has gathered increased interest; however, research on how teachers’ background qualities (BQs) influence teaching practices for MLs is lacking. In the field of multilingual education, scholars have suggested that certain qualities, particularly cultural and linguistic backgrounds, contribute to effectively accounting for MLs in the content classroom and embracing the role of language teacher. In this study we draw upon in-class comments, classroom interactions, targeted interviews, and assignments from teachers-in-training (N=12) throughout one semester in a history teaching methods course to address the following research question: How do prospective teachers’ language-related BQs (i.e. ML-related education, cultural experiences, language learning experience, and teaching experience) shape how they approach ML-related activities and assignments in a content methods teacher education course? The data indicate that preservice teachers with these BQs were better prepared to embrace their roles as language teachers and tailor lessons for MLs than their peers without such BQs.
Improving Work Productivity Through Training, Discipline And Communication At PT. Linewin
Authors: Martin  , Dewi Rafiah Pakpahan
Published: December 2020

The purpose in this study is to analyze the influence of both partial and simultaneous training, discipline and communication on productivity. This research was conducted on PT. Linewin selected 117 production employees to sample. data collection using questionnaires with data analysis using SPSS 22.

The results showed that training, discipline and communion had a positive and significant effect on productivity in PT. Linewin. Discipline variables have the most dominant influence in improving employee work productivity in PT. Linewin. Furthermore, the result of a determination coefficient of 69.1% of productivity variables can be explained by variations in training, discipline and communication variables and the remaining 40.9% is another variable not studied in this study
Analysis of Households Prosperity of Mango Farmers in Situbondo Regency
Authors: Puryantoro  , Andina Mayangsari
Published: December 2020

Farmers' household income is an indicator of the level of prosperity by looking at the amount of expenses and family expenses. Mango production, which has increased every year, needs to be assessed according to the level of household poverty. The purpose of this study was to determine the household level of mango farmers in Situbondo Regency. The research location was determined purposively in the Makmur Jaya I Farmers Group, Jangkar District, Situbondo Regency. Population and sample with saturated sampling technique with a population as well as a sample of 25 respondents. Data were collected through primary data (direct interviews using a questionnaire) and secondary data from related agencies and literature related to this study. The data were analyzed by using quantitative descriptive analysis which was measured using Sajogyo's poverty theory. The prosperity level of the members of the Makmur Jaya I Farmer Group is in the decent living category of 64% and the moderate category of 36%. None of the mango farmers in this group are below the poverty line.
THE EVOLUTIONARY DEVELOPMENT AND CURRENT STATE OF LAKE NERO ACCORDING TO SAPROPEL ANALYSIS
Authors: Zakonnov V. , Pozdnyakov Sh. , Kondratiev S. , Ignatieva N. , Tsvetkov A. , Zakonnova A.
Published: December 2020

The paper presents the characteristics of sapropel based on the results of analysis of samples collected at 21 stations in Lake Nero. Its current state is assessed based on hydrophysical and hydrochemical parameters. A layer-by-layer (0–10, 30–40 and 60–70 cm) granulometric composition of stratigraphic cores made it possible to compare the evolutionary development of the lake corresponding to the periods 100, 300–400 and 600–800 years ago. It is found that natural hydrodynamic processes (wind-driven waves and wind-driven currents) cause erosion and mixing of the surface (0–10 cm) polluted sapropel layer with clean underlying horizons and carry pollutants absorbed on suspended particles outside the lake. The approach used made it possible to identify the ways of a shallow lake ecosystem formation and outline promising directions
Serbest Dolaşımlı Üretim Sisteminde Yetiştirilen Hubbard Isa Red-JA Broyler Tavuklardaki Sekal Koksidiyozun Tedavisinde Toltrazuril’in (Coc-Cide®) Etkinliğinin Değerlendirilmesi
Authors: USLU Ugur , CEYLAN Onur
Published: December 2020

Eimeria cinsine ait bir koksidian protozoon türü olan Eimeria tenella (E. tenella) (Apicomplexa) Türkiye'nin birçok bölgesinde broyler tavukçuluğu için önemli bir tehdittir. Eimeria tenella hemorajik sekal koksidiyoza sebep olup, önemli derecede verim kayıplarına ve hayvan ölümlerine yol açmaktadır. Bu çalışma, Selçuk Üniversitesi Prof. Dr. Hümeyra ÖZGEN Araştırma ve Uygulama Çiftliğinde yürütülmüştür. Çalışmada 500 adet E. tenella (Syn. E. avium, E.bracheti, Coccidium tenellum, C. globosum) ile doğal olarak enfekte ve serbest dolaşımlı üretim sisteminde açık alanda yemlenerek beslenen Hubbard Isa Red-JA broyler tavuklarda toltrazuril (COC-CİDE %2.5 Oral solution)'in etkinliği değerlendirilmiştir. Sonuç olarak, Hubbard Isa Red-JA broyler tavuklarda sekal koksidiyozun tedavisinde toltrazuril'in etkili olduğu görülmüştür.
Pozitif Psikolojik Sermaye İle Stresle Başa Çıkma Yolları Arasındaki İlişki: Denizli’deki Lise Öğretmenleri Üzerinde Bir Araştırma
Authors: BARUTÇU Esin , MENGÜLOĞLU Mehmet Ali , SIRMA Furkan
Published: December 2020

Pozitif psikoloji akımı doğrultusunda ortaya çıkan pozitif psikolojik sermaye kavramı, bireylerin olumsuz özellikleri yerine olumlu yönlerini ve özelliklerini vurgulamayı amaçlayan bir bakış açısını ifade eder. Bu çalışmanın temel amacı, Denizli Kınıklı bölgesindeki devlet okullarında görevli 175 lise öğretmeni üzerinde pozitif psikolojik sermaye ile stresle başa çıkma yolları arasındaki ilişkiyi incelemektir. Verilerin analizinde SPSS 22 istatistik paket programı kullanılmıştır. Katılımcılara ilişkin verilerin analizinde frekans dağılımlarından yararlanılmıştır. Bununla birlikte demografik değişkenler ile pozitif psikolojik sermaye ve stresle başa çıkma yolları arasındaki ilişkiyi incelemek için Mann Whitney U, Kruskal Wallis testleri ve korelasyon analizlerinden yararlanılmıştır. Değerlendirmeler ışığında elde edilen verilere göre; pozitif psikolojik sermaye ile stresle başa çıkma yolları arasında pozitif yönde anlamlı bir ilişki olduğu sonucuna ulaşılmıştır.
Recovery in Psychosis: Perspectives of Clients with First Episode Psychosis
Authors: Vaingankar Janhavi Ajit , Cetty Laxman , Subramaniam Mythily , Lee Ying Ying , Chong Siow Ann , Lee Helen , Verma Swapna
Published: December 2020

Introduction: Recovery from psychosis relates to connectedness, hope for the future, identity, meaning in life and empowerment. The process of recovery is often described as gradual and non-linear, with many stages and turning points, and without a definitive end point. This qualitative study aims to understand what recovery means to clients, to better understand their unique recovery process and what helps in recovery among clients with lived experience of first episode psychosis (FEP) in a developed Asian setting. Materials and Methods: The study design and interview guide development included inputs from persons with psychosis, following which 7 focus group discussions were conducted with 40 FEP clients of a tertiary care psychiatric institute. Results: Thematic qualitative analysis identified three themes: 1) meaning of recovery (where participants expressed their views on what recovery meant to them); 2) recovery as a journey (due to the constant ups and downs in the long process of recovery, it was often articulated as a “journey”); and 3) facilitators of recovery (related to resources, practices and experiences that supported their recovery). Conclusion: The emergent themes provide an understanding of the meaning of recovery to persons with FEP, their experiences as they proceed with their recovery journey and factors they found helpful. The importance of acceptance of the condition and the personal role the individual plays in his or her own recovery was evident in the narratives of the participants. The study suggests a need to incorporate recovery-relevant approaches right from the first episode of psychosis. Ann Acad Med Singapore 2020;49:186–98 Key words: Meaning of recovery, Qualitative, Thematic analysis
Impact of Chronic Kidney Disease on Outcomes in Transcatheter Aortic Valve Implantation
Authors: Yap Jonathan JL , Tay Julian CK , Ewe See Hooi , Thiagarajan Nishanth , Chia Shaw Yang , Amanullah Mohammed Rizwan , Lim Soo Teik , Chao Victor TT , Ho Kay Woon
Published: December 2020

Introduction: Chronic kidney disease (CKD) is a significant comorbidity in aortic stenosis (AS) patients. We examined the impact of baseline CKD, postoperative acute kidney injury (AKI) and CKD progression on clinical outcomes in patients who underwent transcatheter aortic valve implantation (TAVI). Materials and Methods: Consecutive patients with severe AS who underwent TAVI were classified into CKD stages 1–2 (≥60 mL/min/1.72m2), 3 (30–59 mL/min/1.73m2) and 4–5 (<30 mL/min/1.73m2 or dialysis) based on estimated glomerular filtration rate (eGFR). Primary outcome was mortality and secondary outcomes included 1-year echocardiographic data on aortic valve area (AVA), mean pressure gradient (MPG) and aortic regurgitation (AR). Results: A total of 216 patients were included. Higher eGFR was associated with lower overall mortality (adjusted hazards ratio [AHR] 0.981, 95% confidence interval [CI] 0.968–0.993, P = 0.002). CKD 4–5 were associated with significantly higher mortality from non- cardiovascular causes (P <0.05). Patients with CKD 3–5 had higher incidence of moderate AR than those with CKD 1–2 (P = 0.010); no difference in AVA and MPG was seen. AKI patients had higher mortality (P = 0.008), but the effect was attenuated on multivariate analysis (AHR 1.823, 95% CI 0.977–3.403, P = 0.059). Patients with CKD progression also had significantly higher mortality (AHR 2.969, 95% CI 1.373–6.420, P = 0.006). Conclusion: CKD in severe AS patients undergoing TAVI portends significantly higher mortality and morbidity. Renal disease progression impacts negatively on outcomes and identifies a challenging subgroup of patients for optimal management. Ann Acad Med Singapore 2020;49:273–84 Key words: Acute kidney injury, Aortic stenosis, Transcatheter aortic valve replacement
Nation-Wide Observational Study of Cardiac Arrests Occurring in Nursing Homes and Nursing Facilities in Singapore
Authors: Ho Andrew FW , Lee Kai Yi , Lin Xinyi , Hao Ying , Shahidah Nur , Ng Yih Yng , Leong Benjamin SH , Sia Ching-Hui , Tan Benjamin YQ , Tay Ai Meng , Ng Marie XR , Gan Han Nee , Mao Desmond R , Chia Michael YC , Cheah Si Oon , Ong Marcus EH
Published: December 2020

Introduction: Nursing home (NH) residents with out-of-hospital cardiac arrests (OHCA) have unique resuscitation priorities. This study aimed to describe OHCA characteristics in NH residents and identify independent predictors of survival. Materials and Methods: OHCA cases between 2010–16 in the Pan-Asian Resuscitation Outcomes Study were retrospectively analysed. Patients aged <18 years old and non-emergency cases were excluded. Primary outcome was survival at discharge or 30 days. Good neurological outcome was defined as a cerebral performance score between 1–2. Results: A total of 12,112 cases were included. Of these, 449 (3.7%) were NH residents who were older (median age 79 years, range 69–87 years) and more likely to have a history of stroke, heart and respiratory diseases. Fewer NH OHCA had presumed cardiac aetiology (62% vs 70%, P <0.01) and initial shockable rhythm (8.9% vs 18%, P <0.01), but had higher incidence of bystander cardiopulmonary resuscitation (74% vs 43%, P <0.01) and defibrillator use (8.5% vs 2.8%, P <0.01). Non-NH (2.8%) residents had better neurological outcomes than NH (0.9%) residents (P <0.05). Factors associated with survival for cardiac aetiology included age <65 years old, witnessed arrest, bystander defibrillator use and initial shockable rhythm; for non-cardiac aetiology, these included witnessed arrest (adjusted odds ratio [AOR] 3.8, P <0.001) and initial shockable rhythm (AOR 5.7, P <0.001). Conclusion: Neurological outcomes were poorer in NH survivors of OHCA. These findings should inform health policies on termination of resuscitation, advance care directives and do-not-resuscitate orders in this population.
Ann Acad Med Singapore 2020;49:285–93
Key words: Advance care directives, Do-not-resuscitate orders, Geriatrics, Out-of- hospital, Palliative care