bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prematüre retinopatisinde kardiyak ejeksiyon fraksiyonu ve konjenital kalp hastalıkları
Authors: GÜMÜŞ Hüseyin , ÖZCAN Yasin 
Published: August 2019

Amaç: Prematüre retinopatisi (PR)
gelişen ve gelişmeyen olgularda kardiyak ejeksiyon fraksiyonu (EF) ve
konjenital kalp hastalıklarının (KKH) incelenmesi.Materyal ve
Metod: Prospektif özellikteki çalışmaya 57 prematüre
hasta dahil edildi. PR gelişen 27 olgu Grup 1, PR gelişmeyen 30 olgu Grup 2
olarak sınıflandırıldı. Kardiyak parametreler M-mode ekokardiyografi ile
ölçüldü. Veriler SPSS programında analiz edildi. Bulgular: Grupların Ort. DH’ları arasında
anlamlı bir fark gözlenmezken, 1. Gruptaki olguların ort. DA’sının anlamlı
olarak düşük olduğu gözlendi ( sırasıyla p = 0.12, p = 0.03). 1 . Gruptaki
olgularda EF % 69±9 iken, 2. Gruptaki olgularda % 70±6 idi. Ort. EF açısından
iki grup arasında fark saptanmadı ( p &gt; 0.05). Atrial septal defekt (ASD)
görülme sıklığı 1. Grupta % 40.8 , 2. Grupta % 41, patent ductus arteriozus
(PDA) sıklığı ise 1. Grupta % 26., 2.
Grupta % 12.5 idi. Birinci grupta gözlenen PDA sıklığının istatistiksel olarak
daha yüksek olduğu gözlendi ( p &lt; 0.05).
Sonuç: PR gelişen ve gelişmeyen
olgularda EF açısından fark gözlenmezken, PR gelişen olgularda KKH’lardan PDA
yaklaşık 2 kat daha sık gözlenmektedir. PR gelişen olgular PDA’nın kapanması
için yakından takip edilmelidir.

Anahtar
Kelimeler: Prematüre,retinopati,kardiyak
hastalık
Batas Toleransi Maksimal Laju Alir Gas Umpan dengan Konsentrasi Co2 Konstan pada Mikroalga (Tetraselmiss Chuii dan Spirrulina Sp) dalam Fotobioreaktor
Authors: Purba Elida , Abdussalam Sakha , K. Agus Rivaldy 
Published: August 2019

Penelitian ini membahas tentang penentuan batas laju alir yang diberikan kepada mikroalga Tetrashelmis chuii dan Spirrulina sp terhadap ketahananya dalam hal mengadsorpsi CO2 dengan konsentasi umpan CO2 yang cukup besar. Tujuan dari penelitian ini adalah menentukan batas toleransi laju alir gas umpan dengan konsentrasi CO2 konstan pada mikroalga (Tetraselmiss chuii dan Spirrulina sp) dalam fotobioreaktor. Hal ini diperlukan untuk mengkarakteristikan jenis mikroalga terhadap ketahanannya dalam menerima umpan gas yang diberikan untuk mengurangi jumlah CO2 dengan dilakukannya variasi laju alir umpan masuk fotobioreaktor yaitu 1 l/menit , 1,5 l/menit dan 2 l/menit dengan konsentrasi CO2 sebesar 33 %. Didapatkan hasil bahwa laju alir yang optimum yang dimiliki oleh mikroalga paling baik dalam penyerapan CO2 yaitu Spirrulina sp dengan kemampuan laju alir 1 l/menit dengan penyerapan sebesar 83,13 % dibanding Tetraselmis chuii dengan laju alir 1,5 l/menit dengan penyerapan sebesar 76,10 %.
Untangling the Galaxy. I. Local Structure and Star Formation History of the Milky Way
Authors: Kounkel Marina , Covey Kevin 
Published: August 2019

Abstract

Gaia DR2 provides unprecedented precision in measurements of the distance and kinematics of stars in the solar neighborhood. Through applying unsupervised machine learning on DR2's 5D data set (3D position + 2D velocity), we identify a number of clusters, associations, and comoving groups within 1 kpc and

(many of which have not been previously known). We estimate their ages with the precision of ∼0.15 dex. Many of these groups appear to be filamentary or string-like, oriented in parallel to the Galactic plane, and some span hundreds of parsec in length. Most of these string lack a central cluster, indicating that their filamentary structure is primordial, rather than the result of tidal stripping or dynamical processing. The youngest strings (<100 Myr) are orthogonal to the Local Arm. The older ones appear to be remnants of several other arm-like structures that cannot be presently traced by dust and gas. The velocity dispersion measured from the ensemble of groups and strings increase with age, suggesting a timescale for dynamical heating of ∼300 Myr. This timescale is also consistent with the age at which the population of strings begins to decline, while the population in more compact groups continues to increase, suggesting that dynamical processes are disrupting the weakly bound string populations, leaving only individual clusters to be identified at the oldest ages. These data shed a new light on the local galactic structure and a large-scale cloud collapse.
The Discovery of Six Recycled Pulsars from the Arecibo 327 MHz Drift-Scan Pulsar Survey
Authors: Martinez J. G. , Gentile P. , Freire P. C. C. , Stovall K. , Deneva J. S. , Desvignes G. , Jenet F. A. , McLaughlin M. A. , Bagchi M. , Devine Tom 
Published: August 2019

Abstract
Recycled pulsars are old (≳108 yr) neutron stars that are descendants from close, interacting stellar systems. In order to understand their evolution and population, we must find and study the largest possible number of recycled pulsars in a way that is as unbiased as possible. In this work, we present the discovery and timing solutions of five recycled pulsars in binary systems (PSRs J0509+0856, J0709+0458, J0732+2314, J0824+0028, and J2204+2700) and one isolated millisecond pulsar (PSR J0154+1833). These were found in data from the Arecibo 327 MHz Drift-Scan Pulsar Survey (AO327). All these pulsars have a low dispersion measure (DM;

), and have a DM-determined distance of ≲3 kpc. Their timing solutions, with data spans ranging from 1 to ∼7 yr, include precise estimates of their spin and astrometric parameters, and for the binaries, precise estimates of their Keplerian binary parameters. Their orbital periods range from about 4 to 815 days and the minimum companion masses (assuming a pulsar mass of 1.4 M
⊙) range from ∼0.06 to 1.11 M
⊙. For two of the binaries we detect post-Keplerian parameters; in the case of PSR J0709+0458 we measure the component masses but with a low precision, in the not too distant future the measurement of the rate of advance of periastron and the Shapiro delay will allow very precise mass measurements for this system. Like several other systems found in the AO327 data, PSRs J0509+0854, J0709+0458, and J0732+2314 are now part of the NANOGrav timing array for gravitational wave detection.
Mass Measurements for Two Binary Pulsars Discovered in the PALFA Survey
Authors: Zhu W. W. , Freire P. C. C. , Knispel B. , Allen B. , Stappers B. W. , Lyne A. G. , Chatterjee S. , Cordes J. M. , Crawford F. , Deneva J. S. , Ferdman R. D. , Hessels J. W. T. , Kaspi V. M. , Lazarus P. , Lynch R. , Ransom S. M. , Stovall K. , Donner J. Y. 
Published: August 2019

Abstract
In this paper, we present the results of timing observations of PSRs J1949+3106 and J1950+2414, two binary millisecond pulsars (MSPs) discovered in data from the Arecibo ALFA pulsar survey (PALFA). The timing parameters include precise measurements of the proper motions of both pulsars, which show that PSR J1949+3106 has a transversal motion very similar to that of an object in the local standard of rest. The timing also includes measurements of the Shapiro delay and the rate of advance of periastron for both systems. Assuming general relativity, these allow estimates of the masses of the components of the two systems; for PSR J1949+3106, the pulsar mass is

and the companion mass

for PSR J1950+2414

and

(all values have 68.3% confidence limits). We use these masses and proper motions to investigate the evolutionary history of both systems: PSR J1949+3106 is likely the product of a low-kick supernova; PSR J1950+2414 is a member of a new class of eccentric MSP binaries with an unknown formation mechanism. We discuss the proposed hypotheses for the formations of these systems in light of our new mass measurements.
Characterization of Ring Substructures in the Protoplanetary Disk of HD 169142 from Multiwavelength Atacama Large Millimeter/submillimeter Array Observations
Authors: Macías Enrique , Espaillat Catherine C. , Osorio Mayra , Anglada Guillem , Torrelles José M. , Carrasco-González Carlos , Flock Mario , Linz Hendrik , Bertrang Gesa H.-M. , Henning Thomas , Gómez José F. , Calvet Nuria , Dent William R. F. 
Published: August 2019

Abstract
We present a detailed multiwavelength characterization of the multi-ring disk of HD 169142. We report new Atacama Large Millimeter/submillimeter Array (ALMA) observations at 3 mm and analyze them together with archival 0.89 and 1.3 mm data. Our observations resolve three out of the four rings in the disk previously seen in high-resolution ALMA data. A simple parametric model is used to estimate the radial profile of the dust optical depth, temperature, density, and particle size distribution. We find that the multiple ring features of the disk are produced by annular accumulations of large particles, probably associated with gas pressure bumps. Our model indicates that the maximum dust grain size in the rings is ∼1 cm, with slightly flatter power-law size distributions than the interstellar medium-like size distribution (p ∼ 3.5) found in the gaps. In particular, the inner ring (∼26 au) is associated with a strong and narrow buildup of dust particles that could harbor the necessary conditions to trigger the streaming instability. According to our analysis, the snowlines of the most important volatiles do not coincide with the observed substructures. We explore different ring formation mechanisms and find that planet–disk interactions are the most likely scenario to explain the main features of HD 169142. Overall, our multiwavelength analysis provides some of the first unambiguous evidence of the presence of radial dust traps in the rings of HD 169142. A similar analysis in a larger sample of disks could provide key insights on the impact that disk substructures have on the dust evolution and planet formation processes.
Merging Rates of Compact Binaries in Galaxies: Perspectives for Gravitational Wave Detections
Authors: Boco L. , Lapi A. , Goswami S. , Perrotta F. , Baccigalupi C. , Danese L. 
Published: August 2019

Abstract
We investigate the merging rates of compact binaries in galaxies and the related detection rate of gravitational wave (GW) events with AdvLIGO/Virgo and with the Einstein Telescope. To this purpose, we rely on three basic ingredients: (i) the redshift-dependent galaxy statistics provided by the latest determination of the star formation rate functions from UV+far-IR/(sub)millimeter/radio data; (ii) star formation and chemical enrichment histories for individual galaxies, modeled on the basis of observations; and (iii) compact remnant mass distribution and prescriptions for merging of compact binaries from stellar evolution simulations. We present results for the intrinsic birth rate of compact remnants, the merging rates of compact binaries, GW detection rates, and GW counts, attempting to differentiate the outcomes among black hole–black hole, neutron star–neutron star, and black hole–neutron star mergers and to estimate their occurrence in disk and spheroidal host galaxies. We compare our approach with the one based on cosmic star formation rate density and cosmic metallicity, exploited by many literature studies; the merging rates from the two approaches are in agreement within the overall astrophysical uncertainties. We also investigate the effects of galaxy-scale strong gravitational lensing of GW in enhancing the rate of detectable events toward high redshift. Finally, we discuss the contribution of undetected GW emission from compact binary mergers to the stochastic background.
Globalisation, modèles nationaux de développement et stratégies des firmes (XIX e -XXI e siècle)
Authors: Barjot Dominique 
Published: August 2019

L’émergence de nouvelles puissances économiques a constitué un moteur fondamental du développement économique. Afin d’étudier, en longue durée, le lien entre mondialisation des échanges, stratégies nationales de développement et émergence des entreprises à vocation multinationale (ou global players ), il est intéressant de croiser les analyses concernant les dynamiques de croissance et la globalisation d’une part, les approches microéconomiques de l’autre. Dans une perspective macroéconomique, il est important de savoir comment les modèles nationaux de croissance sont sinon gagnants au sein du processus de globalisation ou, au moins, s’y intègrent, problème crucial et accru par la montée en puissance des organisations internationales. En effet, les politiques économiques des États, en particulier pour les petites nations développées, apparaissent très liés aux processus de multinationalisation des firmes. À cet égard, les approches microéconomiques permettent de définir les différents facteurs de l’internationalisation, qui constituent un préalable à la multinationalisation. Le succès international des firmes semble obéir à une logique de path dependency : les firmes entrepreneuriales ne sont pas nécessairement condamnées face aux corporations managériales, ni non plus les outsiders face aux leaders mondiaux. Toutefois, pour apprécier l’influence des multinationales sur les pays récepteurs, il faut de plus en plus prendre en compte les effets de « chaînes globales de valeur ». C’est ce que montre le débat autour du modèle asiatique de développement, né au Japon, testé avec succès à Hong Kong et en Corée du Sud, développé en Chine, mais aussi en Indonésie, en Inde et, même, un peu, dans les Émirats Arabes Unis.
Europe’s financial capitals since the early twentieth century
Authors: Cassis Youssef 
Published: August 2019

Cet article traite de la position des principales places financières européennes depuis le début du vingtième siècle. Il étudie plus particulièrement l’évolution de la position financière de l’Europe, de son apogée durant la période d’avant 1914, lorsqu’elle faisait office de « banquier du monde », au déclin à la fin des années 1940, lorsqu’elle bénéficie de l’aide américaine, puis au rétablissement de son pouvoir financier au tournant du vingt-et-unième siècle, dans un environnement financier de plus en plus multipolaire. L’article aborde trois grandes questions : premièrement, comment expliquer l’essor, le déclin et la chute des capitales financières européennes ? Deuxièmement, quel a été le degré de coopération, concurrence et intégration de ces capitales financières ? Et troisièmement, quelles indications le passé peut-il nous donner en ce qui concerne l’évolution des capitales financières européennes au vingt-et-unième siècle, à la suite notamment de la crise financière globale et du Brexit.
La mondialisation des entreprises francaises ou le destin divergent de Schneider Electric et d’Alcatel Alsthom
Authors: Torres Félix 
Published: August 2019

La mondialisation des entreprises françaises lors de la seconde mondialisation des années 1980 aux années 2000, reste un phénomène peu étudié, notamment à cause de sa contemporanéité. L’histoire divergente des groupes Schneider Electric (ex Empain-Schneider puis Schneider et d’Alcatel Alsthom (ex Compagnie générale d’électricité, devenu par la suite Alcatel-Lucent avant d’être démantelé), deux groupes dont nous avons réalisé l’histoire publique offre un champ d’analyse intéressant car leurs secteurs d’activité se sont souvent recoupés. La divergence de leur destin est d’abord chronologique, Alcatel Alsthom connaissant une brillante décennie 1980 avant de trébucher dans la deuxième moitié de la décennie suivante, malgré le recentrage de ses activités vers les télécommunications. Grevé par les dossiers industriels, Empain-Schneider manque pour sa part de disparaître au cours des années 1980, notamment à l’occasion de sa filiale Creusot-Loire. Cet épisode et le redéploiement de son portefeuille d’activité vers la distribution électrique terminale lui permettent de devenir un leader mondial de la décennie suivante à l’heure actuelle. Quelques grands facteurs permettent d’expliquer le passage réussi (ou non) du marché domestique au marché global d’un groupe français : la continuité d’une culture stratégique et financière d’origine privée plutôt qu’une personnalité de « champion national » plongée dans un environnement global très volatile.
Data Aggregation in Microservice Architecture
Authors: Damyanov Ivo 
Published: August 2019

In a microservice architecture aggregation of data collected from different sources is a common task. Today’s technology trends require us to exchange data that is no longer tabular. JSON data format has gained popularity among web developers, and has become the main format for exchanging information over the web. When we need to aggregate data collected from the web, storing it into relational database just to perform this task and pass it to the next unit to process or display it often is an exaggerated action. In this paper, we discuss a scenario and an implementation of in-memory preprocessing and aggregating data using lazy evaluation, value tuples and LINQ.
GCR and CCR Steinberg Algebras
Authors: Clark Lisa O. , Steinberg Benjamin , van Wyk Daniel W. 
Published: August 2019

AbstractKaplansky introduced the notions of CCR and GCR $C^{\ast }$-algebras, because they have a tractable representation theory. Many years later, he introduced the notions of CCR and GCR rings. In this paper we characterize when the algebra of an ample groupoid over a field is CCR and GCR. The results turn out to be exact analogues of the corresponding characterization of locally compact groupoids with CCR and GCR $C^{\ast }$-algebras. As a consequence, we classify the CCR and GCR Leavitt path algebras.
Depressão pós-parto e afetos predominantes na gestação, parto e pós-parto
Authors: Carvalho Mariane Teixeira , Benincasa Miria 
Published: August 2019

O objetivo deste estudo foi comparar os afetos da mãe nos grupos com e sem depressão. Trata-se de uma pesquisa qualitativa, exploratória, com delineamento de quatro estudos de caso. A pesquisa foi realizada na residência das participantes e a amostra foi constituída por quatro mulheres do Estado de São Paulo, sendo duas que tiveram depressão pós-parto e duas que não tiveram. Os instrumentos utilizados foram à Entrevista Semidirigida, um Questionário Sociodemográfico e a Escala de Depressão Pós-Parto de Edinburgo, aplicados na residência das participantes. Os resultados foram apresentados a partir da análise de conteúdo e discutidos conforme a literatura especializada, revelando que este é um período sentimentos ambivalentes em relação a si mesma, à gestação, às relações sociais e ao futuro. Independente da existência ou não do diagnostico de depressão, houve necessidade de enfrentamento de conflitos individuais e sociais em todas as participantes durante todo o ciclo gravídico puerperal. Durante o período gestacional, todas as participantes passaram pelo processo de pré-natal, no entanto, as equipes concentraram-se, exclusivamente nas alterações fisiológicas, negligenciando os aspectos sociais e psicológicos, culturais. Sugere-se intervenções voltadas à promoção da saúde integral de mulheres durante o ciclo gravídico puerperal.
A Arte de Saborear Maçãs Ácidas: A Recepção de Fenômenos Incomuns pelos Pioneiros da Psicanálise
Authors: Wondracek Karin Hellen Kepler 
Published: August 2019

Resumo : Uma incursão aos primórdios da psicanálise com o objetivo de estabelecer recortes históricos a respeito da recepção de fenômenos incomuns como telepatia, mediunidade, experiências de quase-morte em alguns pioneiros da psicanálise. Entre estes, destaca-se a atitude cuidadosa e reticente de Freud a respeito da telepatia, a curiosidade de Ferenczi para com a premonição e mediunidade, e os estudos de Oskar Pfister sobre experiências de quase-morte. Embora afirmados como campos separados, mostra-se que não deixaram de influenciar as teorizações, especialmente da comunicação inconsciente e da empatia. Destaca-se ainda a afirmação pioneira da interdisciplina para compreensão mais profunda desses fenômenos, antecipatória do atual quadro epistemológico para tais estudos.
Indicadores para cidades inteligentes: a emergência de um novo clichê
Authors: Coutinho Sonia Maria Viggiani , Vasconcellos Maria Da Penha , Abílio Carolina Cássia Conceição , Alvarenga Neto Clóvis Armando 
Published: August 2019

Objetivo do estudo: O presente estudo bibliográfico tem por objetivo realizar uma análise crítica entre indicadores para cidades sustentáveis (ABNT/ISO 37120:2014 e ODS) e para cidades inteligentes (Web of Science), relacionados aos desafios enfrentados nas cidades.Metodologia/abordagem: O procedimento metodológico foi revisão de literatura na base do Web of Science, análise de conteúdo, categorização dos indicadores e comparação.Originalidade/Relevância: A originalidade do estudo está em olhar para o conjunto de indicadores de cidades inteligentes e sustentáveis em relação à sensibilidade destes em avaliarem uma gestão urbana atual, inovadora e voltada aos desafios contemporâneos, como migrações, mudanças climáticas e desastres naturais.Principais resultados: Observamos a presença de indicadores recorrentes nos temas saúde, educação, habitação, saneamento e pobreza, além de inovação e tecnologia e a ausência de indicadores voltados aos desafios mencionados acima.Contribuições teóricas/metodológicas: Os resultados indicam referencial teórico de qualidade e reconhecido cientificamente.Conclusão: A produção de ferramentas e tecnologias de uso na abrangência das questões urbanas apresenta uma grande lacuna na construção de indicadores sensíveis na mensuração de transformações inéditas do ponto de vista climático e de grande impacto sobre as cidades. Palavras-chave: Cidades inteligentes. Cidades sustentáveis. Indicadores de sustentabilidade.
Communauté de pratique virtuelle sur la consommation de substances et la sexualité : étude de besoins
Authors: Dumas Jean , Goyette Mathieu , Flores-Aranda Jorge , Saint-Jacques Marianne , Bertrand Karine 
Published: August 2019

Les hommes ayant des relations sexuelles avec d’autres hommes (HARSAH) peuvent vivre des situations de vulnérabilité au regard de la consommation de substances psychoactives (SPA) et de la santé sexuelle. Ils font face également à des barrières concernant l’accessibilité à des services adaptés, dues à des lacunes en matière de formation des intervenants et au manque d’intégration des services. Les communautés de pratique virtuelles (CPV) représentent une avenue prometteuse pour pallier ces lacunes.
Cette étude repose sur un devis mixte et vise à identifier les besoins et les attentes des utilisateurs potentiels afin d’orienter le développement d’une CPV (InterseXion). Afin de répondre à cet objectif, 49 intervenants québécois en santé sexuelle ou en dépendance ont rempli un questionnaire en ligne portant sur leurs compétences perçues en santé sexuelle et en dépendance, leur intérêt au sujet de la CPV ainsi que les contenus jugés les plus utiles. De ce nombre, sept intervenants ont pris part à une entrevue individuelle visant à approfondir la compréhension de leurs besoins.
Les résultats mettent en évidence que l’intervention intégrée, sur les plans de la sexualité et de la dépendance, constitue un besoin de formation prioritaire pour l’ensemble des intervenants. La CPV est considérée comme une stratégie pertinente afin de répondre à des besoins de développement des compétences et de collaboration. Les entrevues mettent en relief le potentiel de la plateforme pour favoriser la collaboration intersectorielle et l’interdisciplinarité, développer des attitudes adéquates pour mieux intervenir, connaître et développer les meilleures pratiques. Des outils pour mieux intervenir ainsi que des exemples de meilleures pratiques sont proposés afin de favoriser l’atteinte de ces objectifs. Les résultats sont mis en perspective quant à leur contribution au développement de la CPV. Cette démarche souligne la pertinence de mener des études de besoins similaires pour le développement d’autres CPV en dépendance.