bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characteristics and assessment of the usefulness of serological tests in the diagnostic of infections caused by coronavirus SARS-CoV-2 on the basis of available manufacturer’s data and literature review
Authors: Rastawicki W , Rokosz-Chudziak N 
Published: June 2020

<p><strong>ABSTRACT</strong><br />Recognized in 2019 in Wuhan, China, the new SARS-CoV-2 coronavirus is responsible for the occurrence of a global pandemic disease called COVID-19. So far, confirmation of infection is based on the detection of virus RNA in a sample taken from a person meeting the suspected case definition. However, in the laboratory diagnosis of SARS-CoV-2 infections, in addition to genetic tests, serological methods can also be used to detect specific antibodies of the IgM, IgG and IgA class produced after contact with antigens or to detect viral antigen. Currently, a number of rapid immunochromatographic, chemiluminescent and ELISA immunoassay tests developed by different manufacturers for the diagnosis of COVID-19 are available on the market. Despite this fact, so far there is no WHO or ECDC recommendations or even reliable research regarding the usefulness of serological investigations in the laboratory diagnosis of infections caused by SARS-CoV-2.</p>
<p><strong>STRESZCZENIE</strong><br />Rozpoznany w 2019 roku w Wuhan w Chinach nowy koronawirus SARS-CoV-2 odpowiedzialny jest za wystąpienie światowej pandemii choroby nazwanej COVID-19. Jak do tej pory, potwierdzenie zakażenia opiera się na wykryciu RNA wirusa w próbce pobranej od osoby spełniającej kryteria definicji podejrzenia przypadku. Jednakże, w laboratoryjnej diagnostyce zakażeń SARS-CoV-2, oprócz testów genetycznych, można wykorzystywać również metody serologiczne, pozwalające na wykrycie swoistych przeciwciał klasy IgM, IgG i IgA wyprodukowanych przez organizm człowieka po kontakcie z antygenami wirusa albo też wykrywające antygen wirusa. Obecnie na rynku dostępnych jest szereg szybkich testów immunochromatograficznych, chemiluminescencyjnych oraz testów immunoenzymatycznych ELISA opracowanych przez różnych producentów, przeznaczonych do diagnostyki COVID-19. Pomimo tego, do tej pory nie ma rekomendacji WHO lub ECDC, ani nawet wiarygodnych badań dotyczących przydatności badań serologicznych wykonywanych poszczególnymi testami w laboratoryjnej diagnostyce zakażeń wywoływanych przez SARS-CoV-2.</p>
Nilai-Nilai Moral Dalam Kearifan Lokal Budaya Melayu Bangka dan Implikasinya Terhadap Layanan Bimbingan dan Konseling Masyarakat
Authors: Cholid Nurviyanti 
Published: June 2020

Penelitian ini mempergunakan metode eksploratif dengan pendekatan induktif. Penelitian eksploratif dilakukan untuk menggali nilai-nilai yang terdapat dalam kearifan lokal masyarakat Melayu Bangka yang dapat disinergikan ke dalam layanan bimbingan dan konseling masyaratat. Sedangkan pendekatan induktif dengan cara menarik kesimpulan secara umum dari fakta-fakta nyata di lapangan. Data digunakan dalam penelitian ini adalah data primer dan data sekunder. Data primer diperoleh langsung dari sumber data pertama dan data sekunder yang diperoleh dari sumber kedua dari data yang dibutuhkan melalui studi kepustakaan (library research). Teknik pengumpulan data yang digunakan yaitu observasi dan wawancara. Lokasi penelitian di empat daerah yaitu Pangkalpinang, Paya Benua, Tempilang dan Sungailiat. Hasil penelitian yang didapat bahwa nilai kearifan lokal budaya Melayu Bangka, meliputi semangat kebersamaan, gotong royong, qonaah, dan demokratif. Kesimpulan penelitian adalah nilai kearifan lokal yang terkandung dalam budaya dan adat istiadat masyarakat Melayu Bangka dapat diimplemantasikan ke dalam layanan Bimbingan dan Konseling di Masyarakat. Untuk itu disarankan, pemangku kepentingan merumuskan nilai berdasarkan kearifan lokal tersebut sehingga bisa diterapkan sebagai bahan atau materi dalam memberikan layanan dan konseling di masyarakat melalui instansi-instansi pemerintahan setempat.
You want a hot body? You want a Bugatti? You better work(out): FitBit, neoliberalism, and the thin ideal
Authors: Zisser Katharine 
Published: June 2020

The Fitbit manifests an ideology of healthism that prioritizes the pursuit of physical health above all else. The device’s design, use, and underlying epistemic frameworks transform exercise into data, labour, and knowledge, respectively. Using an accelerometer and green LED lights, the Fitbit translates the movements of human bodies into data. ‘Exercise’ is thus limited to what can be mechanically registered and algorithmically sorted into a pre-set category. This freely generated user data is aggregated into profitable datasets that Fitbit can sell to advertisers. Fitbit’s partnerships with insurers or employers further exploit workers by penalizing non-participants and users who generate undesirable data. Finally, the practice of activity tracking frames exercise as a health intervention and restricts the possibility of being absent from one’s body. Furthermore, Fitbit understands fitness through the lens of weight management, where the fit body is a conspicuously self-disciplined (read: thin) body. By framing fitness as a choice, individuals are held personally responsible for health outcomes, and being ‘unfit’ reflects a physical and moral failure. The insights produced by Fitbit thus restrain and shape users’ self-knowledge, perpetuating a cultural norm that understands ‘fit’ bodies as healthy, productive, and morally good.
Selected Aspects of the Pre- and Post-Match Rituals of Female Football Players
Authors: Rutkowska Katarzyna , Rut Anna 
Published: June 2020

Rituals are an interdisciplinary subject. They can carry many meanings and have different values for the person who performs them or believes in super­stitions associated with them. Rituals are mysterious and intriguing, and thus more interesting as an area of scientific study. Observation of the sports com­munity shows that ritualization applies not only to the ceremony itself, but also to the behavior and performance of individual players, especially dur­ing the pre-match period. This awareness prompted research and discussion on the place/role of rituals in the mental and physical preparation of athletes.
The study included 62 female football players playing in Polish league competitions. They completed a questionnaire called “Rituals in Sport.” The aim of the study was to learn about the ritualized practices of players and their teams. The survey questions also concerned the subjectively felt relationship between rituals and the expected outcome of the match, among other things. The analysis of our findings confirmed that the female footballers’ pre-and post-match practices are ritualized. The scope, diversity, and multiplicity of meanings of the rituals performed by individual players reveal the significance of this interdisciplinary phenomenon.
Introduction
Authors: Whalen Brian 
Published: June 2020

The heft of this volume, one of the thickest that Frontiers has published, is an indication that research in study abroad continues to expand. The articles that appear on these pages were selected from among a record number of submissions and represent the growing diversity and sophistication of research in this field. Frontiers accepts for publication approximately 20% of manuscripts that are submitted, the lowest acceptance rate in its nearly twenty-year history.
The editorial board appreciates greatly the work of the many manuscript reviewers who have dedicated their time in judging articles. Their expert analyses and recommendations are essential to Frontiers fulfilling its mission of being a high quality, peer-reviewed publication.
This year marks a turning point for Frontiers. The editorial board has decided to transition to becoming an exclusively online publication beginning with the fall, 2012 volume. As readers know, past articles are available on the Frontiers web site for easy accessibility and at no charge. In the future, we plan to maintain this free accessibility and promote the web presence of Frontiers more widely to increase readership.
Eliminating the hard copy of Frontiers is an environmentally responsible decision that will not only reduce paper usage, but also make the publication process more efficient. Both authors and readers will benefit from a speeded-up process of making articles available. Once accepted, and after making their way through the editorial process, articles will be uploaded onto the web site in a timely fashion.
The transition to an exclusively online publication will not alter the quality of the content of Frontiers. The same peer review process that has been the backbone of Frontiers will continue to help assure that the articles that appear are relevant to advancing the field of study abroad. The editorial board has the same goal that it has always had: to publish the definitive journal in the field, one that informs and inspires colleagues to advance study abroad to new frontiers.
Brian J. Whalen,
Editor Frontiers: The Interdisciplinary Journal of Study Abroad
Intercultural Development: Study Abroad Vs. On-Campus Study
Authors: Anderson Phillip H. , Lawton Leigh 
Published: June 2020

This article presents a study based on a semester-long study abroad program in an English-speaking country. Some researchers have called for improved assessment of study abroad programs, while others suggest establishing a minimum standard for every program, including qualitative and quantitative measures. Therefore, if the goal is to assess whether improved intercultural development occurred as a result of students studying abroad, then this study’s results offer support that both the GPI and the IDI can fulfill this role.
Intercultural Competence and Language Variety on Study Abroad Programs: L2 Learners of Arabic
Authors: Palmer Jeremy 
Published: June 2020

The issue of intercultural competence among students of Arabic has not received much attention in academic literature. The ability to comfortably thrive in more than one culture and language is certainly of importance for students in this age of global contact, exchange, and even strife. At a time of wars and frequent misunderstandings, cultural and linguistic tolerance and understanding between the Arab world and the West is paramount. Fortunately, more and more American students are signing up to study Arabic. Enrollments in Arabic at institutions of higher education in the United States increased 126% - more than any other language - between 2002 and 2006 (Furman, Goldberg, & Lusin, 2007). In order to understand Arabic language and culture well, it is generally accepted that students should spend time abroad in an Arabic-speaking country. The benefits of study abroad have long been praised (Carroll, 1967; Kinginger & Farrell, 2004; Berg et al., 2008). Contradictorily, however, there are not many American students who choose to study abroad in the Arab world each year (Gutierrez et al., 2009).
This paper presents the results of a research project that queried over 90 research participants who spent time on study abroad programs in the Arab world. These research participants completed an online questionnaire about their cultural and linguistic experiences abroad. This paper reports results pertaining to research participant difficulty in performing certain social and linguistic functions while abroad using an adapted instrument to measure acculturation from Ward & Kennedy (1999). The research participants were also asked about the amount of interaction in which they engaged with host nationals. Finally, research participants were asked about their use of Arabic language varieties. Results show that research participants were able to perform the social and linguistic functions with greater ease at the end of their study abroad programs. Results also showed that students who had exposure to spoken colloquial Arabic before arrival felt more acculturated at the beginning of their programs. Interestingly, research participants who interacted more with host nationals tended to speak more colloquial Arabic than the more formal variety. In addition, research participants in Egypt, Syria, and Jordan (to a lesser degree) had a greater desire to speak colloquial Arabic than those in Morocco and Yemen.
Analis Pengaruh Devidend Payout Ratio, Leverage, Firm Size, Volume Perdagangan, Earning Volatility, Dan Inflasi Terhadap Volatilitas Harga Saham Pada Perusahaan Yang Terdaftar Dalam Indeks LQ 45 Tahun 2014
Authors: Yulinda Eva , Astuti Triani Puji , Haryono S. T 
Published: June 2020

Penelitian ini bertujuan untuk menganalisis pengaruh Dividend Payout Ratio, Leverage, Ukuran Perusahaan, Volume Perdagangan, Volatilitas Produktif, dan Inflasi terhadap Volatilitas Harga Saham untuk perusahaan yang terdaftar dalam Indeks LQ45 2014-2017. Populasi penelitian adalah 70 perusahaan yang terdaftar dalam Indeks LQ45 2014-2017. Pengambilan sampel dari perusahaan multiguna 22 dengan menggunakan metode purposive sampling. Data yang digunakan dalam penelitian ini diperoleh dari halaman Bursa Efek Indonesia (www.idx.co.id), halaman Bank Indonesia (www.bi.go.id) dan www.finance.yahoo.com. Teknik analisis yang digunakan adalah Analisis Regresi Berganda, uji normalitas, uji asumsi klasik yang meliputi uji multikolinieritas, uji autokorelasi, dan uji heteroskedastisitas, uji f, uji koefisien determinasi, dan uji statistik t. Hasil pengujian sedangkan secara parsial (uji t) menunjukkan bahwa variabel Dividend Payout Ratio, Ukuran Perusahaan, dan Inflasi berpengaruh negatif dan tidak signifikan terhadap Volatilitas Harga Saham. Volume Perdagangan Variabel berpengaruh positif signifikan terhadap Volatilitas Harga Saham. Sedangkan Earning Volatility Variabel berpengaruh negatif signifikan terhadap Volatilitas Harga Saham. Dan variabel Leverage berpengaruh positif dan tidak signifikan terhadap Volatilitas Harga Saham.
Kata kunci: Volatilitas Harga Saham, Rasio Pembayaran Dividen, Leverage, Ukuran Perusahaan, Volume Perdagangan, Volatilitas Produktif, dan Inflasi.
Le management de la formation, employabilité et parties prenantes
Authors: AOULA ES-SAADIA 
Published: June 2020

Les offres de formations professionnalisantes au niveau des établissements marocains de l'enseignement supérieur ont nettement augmenté depuis 2008.Par ailleurs, l'intensification du processus de la mondialisation et les mutations connues dans le monde du travail, ont induit des modifications de la relation de l'emploi. Cette derniêre est devenue plus complexe exigeant des diplômés qualifiés, avec une três grande capacité d'adaptation et de flexibilité.
L'employabilité est devenue un objet complexe désignant non seulement une réinsertion aprês une période de chômage mais aussi l'accês et le maintien de l'emploi. Cette communication s'intéresse aux lauréats issus de la formation professionnalisante (licence ou master) en transition vers le marché du travailet s'interroge sur leur employabilité en posant la question centrale : dans quelle mesure le management stratégique de la formation impliquant les parties prenantes saillantes en interaction avec l'Etablissement de l'enseignement supérieur, peut contribuer à une meilleure employabilité des lauréats ?
The Birth Function for Black Holes and Neutron Stars in Close Binaries
Authors: Woosley S. E. , Sukhbold Tuguldur , Janka H.-T. 
Published: June 2020

Abstract
The mass function for black holes and neutron stars at birth is explored for mass-losing helium stars. These should resemble, more closely than similar studies of single hydrogen-rich stars, the results of evolution in close binary systems. The effects of varying the mass-loss rate and metallicity are calculated using a simple semi-analytic approach to stellar evolution that is tuned to reproduce detailed numerical calculations. Though the total fraction of black holes made in stellar collapse events varies considerably with metallicity, mass-loss rate, and mass cutoff, from 5% to 30%, the shapes of their birth functions are very similar for all reasonable variations in these quantities. Median neutron star masses are in the range 1.32–1.37

regardless of metallicity. The median black hole mass for solar metallicity is typically 8–9

if only initial helium cores below 40

(ZAMS mass less than 80

) are counted, and 9–13

, in most cases, if helium cores with initial masses up to 150

(ZAMS mass less than 300

) contribute. As long as the mass-loss rate as a function of mass exhibits no strong nonlinearities, the black hole birth function from 15 to 35

has a slope that depends mostly on the initial mass function for main-sequence stars. These findings imply the possibility of constraining the initial mass function and the properties of mass loss in close binaries using ongoing measurements of gravitational-wave radiation. The expected rotation rates of the black holes are briefly discussed.
Influence of Coronal Holes on CME Deflections: Numerical Study
Authors: Sahade Abril , Cécere Mariana , Krause Gustavo 
Published: June 2020

Abstract
The understanding of the causes that produce the deflection of coronal mass ejections (CMEs) is essential for the space weather forecast. We study the effects on CME trajectories produced by the different properties of a coronal hole (CH), close to the ejection area. We perform ideal magnetohydrodynamics simulations emulating the early rising of the CME in the presence of a CH. We find that, the stronger the magnetic field and the wider the CH area, the larger the CME deflection. The deflection reduces as the CH moves away from the ejection region. To quantify the deflection we propose a dimensionless parameter that depends on the CH properties. We show that a minimum magnetic energy region, responsible for the deflection, is associated with the presence of the CH near the CME. We establish a relationship between the CH properties, the location of the minimum magnetic region, and the CME deflection.
Ce que publier veut dire : réflexions autour de Pierre Guyotat
Authors: Brun Catherine 
Published: June 2020

Censures familiales et appareils légaux de répression en ont tôt décidé : les textes de Pierre Guyotat, et la part de Guyotat à l’origine de ces textes devaient être enfouis, silenciés. Il fallait se placer « sur le seul plan de la littérature ». Au lieu de quoi, Guyotat a surenchéri en outrant ses figurations et accélérant le rythme de sa langue. Surtout, il a approfondi le sens et la portée de la divulgation : publier revient alors à lever le secret sur la collusion inextricable de l’œuvre et de l’existence, et oblige à les prendre ou les rejeter ensemble, simultanément. La nécessité vitale de l’œuvre est ce dont les censeurs, nouveaux et anciens, ne sauraient avoir raison.
Quand les journaux du Nord faisaient de la résistance. La presse d’opposition dans le département du Nord sous le Second Empire
Authors: Ménager Bernard 
Published: June 2020

Cet article analyse, d’une part, l’attitude des pouvoirs publics qui s’efforcent de contrôler la presse sous un régime autoritaire sans pour autant éliminer tous les organes d’opposition et, d’autre part, la réaction de celle-ci face aux contraintes qui lui sont imposées. Dans un premier temps, l’administration impériale a réussi à domestiquer les journaux demeurés indépendants du pouvoir grâce à diverses mesures de contraintes administratives et judiciaires, grâce aussi à des manœuvres financières pour s’assurer du contrôle de cette presse. Mais des failles sont apparues dans le système mis en place : modifications imprévues dans la propriété des journaux et de leurs équipes rédactionnelles, usure du système des avertissements officiels, évolutions imprévues de journaux autorisés par la suite dont on espérait une attitude plus gouvernementale. La presse d’opposition s’est enhardie, contestant selon ses organes la politique commerciale libre-échangiste, la politique extérieure jugée contraire aux intérêts de l’Église catholique ou à l’intérêt national. Tous les organes de presse n’ont cessé de réclamer le retour « des libertés nécessaires ». Cette presse a soutenu le plus souvent les candidats ne bénéficiant pas de l’investiture officielle lors des élections législatives ou locales. Malgré un tirage inférieur à la presse gouvernementale, ces journaux opposants ont joué un rôle important dans la vie politique locale qui préfigure l’âge d’or de la presse politique sous la Troisième République.
Utiliser ou contester les « usines à gaz » de l’évaluation par compétences dans les dispositifs pédagogiques ?
Authors: Vaquero Stéphane 
Published: June 2020

Depuis les années 2000, les dispositifs horizontaux se diffusent au collège et au lycée, comme les Travaux personnels encadrés ( tpe ) ou les Enseignements pratiques interdisciplinaires ( epi ). Pour évaluer les élèves, les enseignants refusent souvent d’utiliser les grilles d’évaluation par compétences, jugeant qu’elles sont trop contraignantes, mais aussi contraires à l’« esprit » de ces dispositifs. Les enseignants ont préféré mettre en avant une évaluation fondée sur les qualités « expressives », « personnelles » des élèves, autant de critères qui ont fini par être intégrés dans les grilles. Ils ont ainsi, malgré eux, participé à l’essentialisation croissante du jugement professoral qui a cours dans ces dispositifs.
Perception of Teachers on Collaborative Tools Knowledge Level Mediated by ICT and Their Experience with Students
Authors: Acosta Corporan Rosalba , Joo Nagata Jorge , Martín García Antonio Víctor , Hernández Martín Azucena 
Published: June 2020

In 21st century, competencies mediated with ICT are key for development at the educational area. This is the reason why this research aims to assess perception on level of competences of secondary school teachers on technological tools to promote collaborative work methodologies with their students and determine if said level has influence on the implementation of these experiences. Design implies a mixed model based on the application of a questionnaire divided in three parts: demographic aspects, level of knowledge on collaborative tools and experiences on collaborative work with students. Sample (n=542) corresponds to secondary education teachers from Dominican Republic. In analysis, nonparametric tests and categorizations were used. Results suggest that teachers require of a better formation on collaborative methodologies and tools mediated by ICT and, additionally, results indicate that there is a digital gap between male and female teachers, as the first group had more advantages.
Développement touristique et éducation relative à l’environnement : Conflits de représentations autour du projet de valorisation muséographique d’un territoire
Authors: Rousseau Olivier , Girault Yves 
Published: June 2020

Dans un secteur rural au nord-est de la France, une collectivité locale souhaite relancer son économie en développant un projet de tourisme proposant diverses approches d’éducation relative à l’environnement, centrées sur l’environnement-nature. Pour la conception de ce « Pôle Nature », des personnes aux intérêts parfois très divergents (élus, chasseurs, pêcheurs, agriculteurs, naturalistes, scientifiques, éducateurs, etc.) ont été sollicitées. Dans le cadre de cet article, nous souhaitons montrer que les principales réserves et réticences exprimées sur ce projet peuvent s’interpréter par la présence d’un conflit de représentations relatives aux pratiques touristiques entre des acteurs ayant des rapports à la nature différents.