bluuebunny/crossref_metadata_2025_split huggingface dataset:
Close Companions to the T Tauri Stars CVSO 109 and CVSO 165 Observed by the HST ULLYSES Program
Authors: Proffitt Charles R. , Roman-Duval Julia , Taylor Joanna M. , Monroe TalaWanda R. , Fischer Travis C. , Fischer William J. , Fullerton A. W. , Aloisi Alessandra , Britt Christopher T. , Busko Ivo , Carlberg Joleen K. , De Rosa Gisella , Frazer Elaine M. , Hernandez Svea , Hirschauer Alec S. , James Bethan L. , Jedrzejewski R. I. , Lockwood Sean , Oliveira Cristina , Plesha Rachel J. , Riedel Adric R. , Riley Allyssa , Sahnow David J. , Sankrit Ravi , Shaw Richard A. , Smith Linda J. , Sohn Sangmo Tony , Som Debopam , Ubeda Leonardo , Welty Daniel E. 
Published: February 2021

Abstract
The Hubble Space Telescope (HST) Ultraviolet Legacy Library of Young Stars as Essential Standards (ULLYSES) program is a HST Director's Discretionary program that is in the process of obtaining a large library of ultraviolet spectroscopic observations of young stars of both high and low masses. We present information on close companions to the T Tauri stars CVSO 109 and CVSO 165 in Orion that were observed with the HST as part of this program. CVSO 109 has a fainter companion at an angular separation ρ = 0.″64 near PA = 218° and Δ(F28X50LP) ≈ 0.6  mag, while the CVSO 165 companion is at ρ = 0.″30 near PA = 326° with Δ(F28X50LP) ≈ 1.7  mag. Both components of CVSO 165 appear to be active stars with strong emission features, while the CVSO 109 companion shows only modest indications of stellar activity. Extracted spectra for each of these components will be included in ULLYSES Data Release 2.
A Time Resolved View of the X-Ray Spectral Variability of the Seyfert-1 Galaxy ESO 511-G030
Authors: Pal Main 
Published: February 2021

Abstract
The origin of the Soft X-ray excess in the spectra of several nearby active galactic nucleus is still highly debated. In this work we report the monotonic spectral hardening of a nearby bare Seyfert galaxy ESO 511-G030 over a time period of ∼110 ks. We found that both the soft (0.3–2  keV) and the hard X-ray (2–10  keV) bands have shown interesting variability during the 110 ks observation. The soft X-ray flux shows a sharp drop in the last ∼50 ks, by ∼30%, while the hard X-ray flux initially increased and then decreased. The overall effect of these variations is a monotonic increase in the hardness ratio. We conclude that: (A) The soft X-ray flux variations may be related to the changes in the primary hard X-ray. (B) The soft X-ray flux decreases by ∼36% in a timespan of ∼50 ks, indicating that its origin could be from a region as close as <0.5 light-day from the supermassive black hole. A detailed hardness ratio resolved spectral analysis with state-of-the-art reflection models will be reported in a future paper.
Café (Coffea L): matéria-prima, processamento e qualidade
Authors: Cassiele Costa de Paula Nathalia , Caldeira Silva Flávio 
Published: February 2021

Fruto do cafeeiro (Coffea sp.), a bebida café é elaborada a partir de grãos de café torrado ou café solúvel que são oriundos da industrialização de grãos de café cru. E com condições climáticas favoráveis, o café se adaptou facilmente em solos brasileiros, após ter chegado em meados de 1727. Atualmente, sabe-se que a composição química do grão de café é influenciada por vários fatores como clima, o solo, manejo pré-colheita e pós-colheita, região, armazenamento e altitude. E estas determinam as inúmeras características sensoriais e qualitativas, ao submeter o grão cru ao processo de torrefação, processo este no qual ocorrem reações responsáveis por cada uma das características sensoriais do produto acabado. Com o auxílio de artigos científicos e livros foi possível descrever todo o processamento do café cru, desde seu plantio até o produto final, incluindo o que é determinado pelas legislações vigentes. Observou-se que há diversos tipos de manejo do café no campo e que cada indústria é responsável por produzir seu blend de acordo com a preferência de seus consumidores. Assim, para assegurar um produto final de qualidade, e ao mesmo tempo competitivo no mercado, é fundamental investir em matérias-primas de qualidade e acompanhar as boas práticas durante todo o processamento, garantindo assim a satisfação do consumidor e um produto de qualidade.
Utilização do kombucha como cultura inoculadora em leite: considerações sobre melhores parâmetros fermentativos
Authors: Rodrigues Caique Silva , Matos Márcia Figueiras Rebelo de , Furtunato Dalva Maria da Nóbrega 
Published: February 2021

O kombucha é uma associação simbiótica entre bactérias do ácido acético e leveduras, na forma de biofilme de celulose, produzido pela fermentação de chás preto ou verde adoçados, tendo a sacarose como substrato. No entanto, investigações sugerem a inoculação do kombucha em leite, sendo a lactose a molécula fornecedora de carbono que alimenta a cultura e promove a fermentação. Essa é uma promissora substituição na indústria de laticínios para a obtenção de ácido lático, uma vez que os produtos lácteos fermentados são populares, em decorrência de suas propriedades nutricionais e sensoriais. O objetivo desse estudo foi realizar uma revisão integrativa acerca da utilização do leite como meio para a fermentação da cultura de kombucha, analisando as principais condições empregadas, realizando um comparativo de suas implicações nos atributos físico-químicos, reológicos e sensoriais dos produtos elaborados e verificando os melhores parâmetros associados. Para isso, foi realizada uma busca avançada de artigos científicos em plataformas de dados online. Os resultados foram apresentados em forma de tabela, sendo analisados qualitativa e quantitativamente. Foi confirmada a possibilidade da utilização do leite como substrato para a cultura de kombucha, observando-se que as condições empregadas no preparo interferem diretamente na qualidade do produto final. Em síntese, a análise dos estudos encontrados permitiu considerar que a maioria dos autores preferiram aplicar em seus sistemas: temperatura de 42 °C; leite magro (0,8-0,9% de gordura); inóculo de kombucha fermentado em chá preto e na concentração de 10% para adição na fermentação do leite.
Extensão universitária e formação sociotécnica: estratégias para a graduação em Sistemas de Informação
Authors: Cafezeiro Isabel , Da Costa Leonardo Cruz 
Published: February 2021

Este artigo objetiva analisar a importância da extensão universitária e da abordagem sociotécnica na configuração do campo de Sistemas de Informação. A metodologia adotada consistiu em alinhavar a história de formação da Ciência da Computação e seu sub-campo Sistemas de Informação com os estudos de currículos sob a luz de Teorias Críticas. Além disso, é apresentado um estudo de caso abordando a disciplina Computação e Sociedade. Como principal resultado este artigo justifica a importância da atividade de extensão na efetivação da abordagem sociotécnica. Por fim, com base na conjuntura do campo de Sistemas de Informação, são elaboradas algumas reflexões acerca da exigência do Plano Nacional de Educação de que, até 2024, todo curso de graduação incorpore ao seu currículo 10% da carga horária em extensão.
Les hybrides, la géographie de la nature et de l’environnement
Authors: Lespez Laurent , Dufour Simon 
Published: February 2021

À l’ère de l’Anthropocène, la transformation de la nature matérielle par les sociétés est de mieux en mieux assimilée. De nombreuses recherches proposent ainsi d’envisager la nature contemporaine comme le résultat de l’hybridation de la nature et de la culture. Mais que sont les hybrides et quelle place doit-on leur accorder ? L’examen du concept en géographie, et dans quelques disciplines voisines, permet d’effectuer plusieurs constats. La géographie démontre depuis longtemps que l’environnement est constitué d’hybrides possédant une dimension matérielle et dont la compréhension ne peut se faire qu’en les inscrivant dans l’espace et dans le temps. Ces hybrides correspondent à des systèmes (géosystèmes, anthroposystèmes) mais aussi aux objets élémentaires qui les constituent (sédiment, arbre, etc.) qui sont ontologiquement socionaturels. Mais nous n’étudions pas des hybrides de nature et de culture mais des hybrides entre des processus physicochimiques, biologiques et sociaux dont la différenciation relève plus d’une distinction méthodologique qu’ontologique. L’examen montre qu’en géographie, l’hybridation semble soit implicite, soit évidente, et demeure un cadre de référence général plutôt qu’un enjeu scientifique et programmatique. À partir de nos recherches sur les cours d’eau, nous montrons que la matérialité contemporaine est composée d’objets hybrides par construction ou par métabolisme. C’est pourquoi nous proposons une géographie des objets hybrides qui s’appuie sur le renforcement d’un espace intradisciplinaire en géographie, seul à même d’articuler toutes les dimensions nécessaires à leur compréhension.
Croyance en la santé et motivation à la protection contre la Covid-19 à Yaoundé
Authors: Noumbissie Claude Désiré 
Published: February 2021

Cette étude est partie du constat d’un manque répandu des populations de la ville de Yaoundé à s’engager dans les mesures de protection sanitaire contre la covid-19. Elle a convoqué deux modèles théoriques complémentaires et transversaux pour expliquer la motivation à la protection contre la covid-19 : le « Health Belief Model » (HBM) et le Protection Motivation Model (PMM) chez les Camerounais. Elle avait pour objectif général d’expliquer le manque de participation publique aux programmes de criblage et de prévention contre la covid-19, de manière théorique de montrer l’existence d’une corrélation linéaire entre le health belief model et le protection motivation model. Pour atteindre cet objectif une enquête a été menée dans la ville de Yaoundé auprès de 129 Camerounais âgés entre 18 et 58 ans. Les résultats montrent que la menace perçue c’est à dire la sévérité perçue et la susceptibilité perçue, les avantages perçus c’est à dire l’efficacité crue des mesures proposées et les caractéristiques psychologiques ou encore d’autres variables comme les variables socio-démographiques, structurales et conjoncturelles développent la motivation à se protéger contre la covid-19 au Cameroun. Ces résultats confirment également l’existence d’une corrélation linéaire entre le health belief model et le protection motivation model.
Investir dans la jeunesse
Authors: Damon Julien 
Published: February 2021

Dans le cadre de la série, ouverte dans ce numéro, consacrée aux solidarités et conflits potentiels entre générations, Julien Damon présente ici l’idée de dotations en capital qui pourraient être versées aux tout jeunes adultes, pour donner à chacun sa chance dans la société. Il s’agit ici d’investir dans la jeunesse tout en luttant contre les inégalités sociales en amont : passer de la redistribution telle qu’elle se pratique aujourd’hui a posteriori , à une « prédistribution » permettant aux jeunes de financer leurs études, de se lancer dans la vie active, etc. Julien Damon rappelle comment cette idée a émergé et même connu un début d’application ; il souligne l’intérêt d’un tel investissement dans le capital humain, sans occulter les débats et questions qu’il peut susciter ; et présente enfin une alternative du même ordre : le prêt à remboursement contingent. Autant de mécanismes qui, dans la lignée du revenu universel, constituent des pistes de réflexion majeures dans la perspective des politiques de réponse à venir à la crise en cours. S.D.
Biodiversité : visions et stratégies
Authors: Labbouz Benoît , Lumbroso Sarah , Vial Isabelle , Lacroix Denis 
Published: February 2021

Dans le cadre de la série consacrée à l’océan, la mer, les littoraux…, lancée en juillet-août 2020, le biologiste Gilles Boeuf nous alertait, dans notre précédent numéro (440, janvier-février 2021), sur l’importance de la biodiversité marine et les risques que faisait peser sur elle le changement climatique. Prolongeant cette série et cette mise en garde de Gilles Boeuf, l’article de Benoît Labbouz, Sarah Lumbroso, Isabelle Vial et Denis Lacroix présente ici les enseignements d’un exercice de prospective tenu en 2020 sur la préservation de la biodiversité à l’horizon 2050, dans le cadre d’un projet de recherche-action associant l’Office français de la biodiversité et AgroParisTech. Six visions de l’état et de la prise en charge de la biodiversité en France métropolitaine à l’horizon 2050 ont été construites et sont ici déclinées, pour notre série, afin d’aborder spécifiquement les enjeux de la biodiversité marine. Après un rappel des éléments de cadrage et de la méthodologie, cet article présente ces six visions et une première série d’enseignements qui interpellent les acteurs du domaine de l’environnement au regard des enjeux, des leviers et des options envisageables pour améliorer l’état de la biodiversité. S.D.
Influence of Information Sharing on Job Satisfaction of Librarians in Private Universities in South-East and South-West, Nigeria
Authors: Ukangwa Clement Chinemerem , Otuza Evans Chima , Ehioghae Maria 
Published: February 2021

The stud investigated how information sharing affects job satisfaction of Librarians in Private Universities in South-East and South-West, Nigeria. The study adopted the survey research design. The population of the study consisted of one hundred and eighty-one (181) librarians from Private Universities in South-East and South-West, Nigeria. Total enumeration technique was employed for the study. A self-structured and validated questionnaire was used to collect data. The Cronbach’s Alpha reliability coefficient for the variables ranged from .705 to .908. A response rate of 90% was obtained. Analyses of data were carried out using descriptive statistics, Pearson Product Moment Correlation and multiple regression. Findings showed that the the individual effects of information sharing on job satisfaction were significant: information sharing (β = .027; t = 2.179; p<.05). Furthermore, the study revealed that information sharing had a significant positive relationship with job satisfaction (r = .414, p<.05). The study concluded that information sharing had significant effect on job satisfaction. The study therefore recommended that the library management should invest in infrastructural and manpower development of the library, as well as the overall welfare of librarians to enhance their job satisfaction. Furthermore, the library management should make provision for the use of high technology laboratories for information sharing.
Keywords: Information sharing, Job satisfaction, Librarians, Private Universities
Imperatives of Career Development on Librarians’ Commitment among University Libraries in Southern Nigeria
Authors: Unegbu V. E , Ezeudu B. , Babalola Y.T , Madukoma E. 
Published: February 2021

This study examined the imperatives of career development on librarians commitment among university libraries in southern, Nigeria.The survey design was adopted for the study. A structured questionnaire was used to collect data from all the five hundred and fifty-six (556) professional librarians in thirty-nine public university in southern, Nigeria .five hundred and twenty four (524) were completed and retrieved for data analysis. Total enumeration method was used to include all academic librarians in the universities in Southern Nigeria. Data was analyzed with descriptive statistics. The findings showed that the extent of career development was high and that out of the five construct, training contributed highest in librarian career development while counselingoffered the least contribution, although it was high.Affectiv commitment made the largest contribution while normative commitment offered the least contribution.Also, findings reviewed that career development significantly influenced librarians commitment at < 0.05 significant level.The study recommends that the library managementcreates a friendly environment and organise regular staff trainingto boost librarians’ commitment
Keywords: Career development, Librarians commitment, Librarians, University libraries
Awareness of Career Prospects in Librarianship and Students’ Preparedness in Library Schools in South-East Nigeria
Authors: Ukamaka Adaeze , Iwuoha Jude , Urhiewhu Lucky Oghenetega , Nwachukwu Sandra Chidera 
Published: February 2021

The paper focused on Awareness of Career Prospects in librarianship and students‟ preparedness in library schools, South- East Nigeria. Descriptive survey research design method was adopted in this study. A total population of 552 respondents covering only final year students of the Library and Information Science Department of library schools in South-East was used for this study, to which 112 were randomly selected. Data was collected by means of a questionnaire and handbook for undergraduate programmes from 2012 to 2019 in each university where Library and Information Science is offered. Findings showed that information networking, software package, and library automation are taught by ESUT, IMSU, NAU, and ABSU only. While literature searching skills is not taught by any of the universities understudied, Introduction to ICT & Internet in Library and information services courses are taught by ESUT, IMSU and NAU. In addition, Electronic publishing and IT tools and computer application are taught only in MOUAU. It was also revealed that students are aware of the following information outlets: libraries, schools, archives, banks, media houses, museums, education and training institutions for information personnel, among others. Results indicated that SIWES and school coursework were the major events put in place in preparing students for a career in librarianship. Recommendations were made based on the findings.
Keywords: Awareness, Career prospects, Librarianship, Library schools
Awareness and Intention to Use Massive Open Online Courses by Law Students in Osun State, Nigeria
Authors: Adebayo E. A , Babalola Y.T 
Published: February 2021

A survey was carried out among undergraduate law students in universities in Osun State, Nigeria to determine the predictive influence of awareness on intention to use Massive Open Online Courses (MOOCs). Proportionate stratified sampling was used to select 356 out of a population of 3269 students. A validated questionnaire with Cronbach’s alpha reliability coefficient of 0.92 was used for data collection. A return rate of 100% was achieved. Data collected were analyzed using descriptive and binary logistic regression. Findings revealed that awareness of MOOCs significantly predicted intention to use MOOCs by the students (Odds Ratio=1.894; Wald Statistics=12.413, p=0.000). Findings further revealed that a good number of the respondents intend to use MOOCs (n=264, 78.3%). The Internet (n=92) was the main source of awareness of MOOCs, but slow internet connectivity (n=254) topped the list of constraints to the use of MOOCs by the students. The study concluded that awareness of MOOCs is critical to its use by undergraduate students in universities in Osun State. It was recommended that law librarians should create awareness of MOOCs among students. Also, law administrators, council of legal education and legal educators should work with the government to improve Internet facilities in the universities to enable law students take full advantage of MOOCs platforms.
Keywords: Awareness, Massive Open Online Courses, Use, Law Students, Undergraduates
Assessing the Use of Innovative Tools for Library Instruction and Services in Federal University Libraries in South-South, Nigeria
Authors: Omeluzor Saturday U. , Ugochi Molokwu , Izuakolam Victoria Kelechi 
Published: February 2021

The study investigated the adoption of innovative tools for library instruction and services in Federal University libraries in South-South zone of Nigeria. The study cut across six federal university libraries in the zone with a total population of 93 academic librarians. The findings revealed that fewer numbers of the respondents have adopted and used innovative tools for library instruction and services which majority of the respondents are yet to use innovative tools for instruction and service delivery. It also showed that the frequency of use of the tools were staggered with social media and text messaging being the ones that are used daily, email was used on a weekly basis while Library Blog, website and OPAC were mostly used on quarterly basis and a general none use of radio broadcasting. The findings further indicated that inadequate use of innovative tools would affect patronage and adequate delivery of library instruction and services to the library patrons who are in different geo-political locations. The researchers recommended the need for library management in federal universities in the South-South zone of Nigeria to explore viable innovative tools for ilibrary instruction and services,
Keywords: Innovative tools, Library instruction, Library services, Librarians, University libraries
Predictors of breastfeeding practices among mothers in a developing African country – A tertiary facility based study in Calabar, Nigeria
Authors: Ikobah Joanah M. , Uhegbu Kelechi , Agbor Iwasam E. , Udoh Ekong 
Published: February 2021

Introduction: Breastfeeding is essential for optimum childhood development. Although there is an increased awareness of the importance of breast milk, the Nigerian Demographic and Health Survey of 2018 showed that less than one-third (29%) of mothers in Nigeria practice exclusive breastfeeding. This may be attributed to several factors, hence the need for this study to assess the indicators and predictors of breastfeeding practices among mothers in a tertiary facility in Calabar, Cross River State. Methods: This cross-sectional study was conducted in the University of Calabar Teaching Hospital, Calabar, Nigeria. Consenting mothers of children aged six weeks to two years were sequentially recruited into the study using an interviewer-administered questionnaire. A test of association of categorical variables was done using Chi square test and pvalue was set at 0.05. Results: One hundred and twenty one children and their mothers were surveyed. Mean age of children was 6.2±3.8months and mothers was 28±25years. Exclusive breastfeeding rate for six months was 67.8%.Timely breastfeeding within one hour of life was 44.6%,ever breastfed rate was 86%. Practice of giving water alongside breast milk and use of breast milk substitute was 18.2% and 14.0% respectively. Mothers age was significantly associated with practice of exclusive breastfeeding (p=0.014) and giving water alongside breast milk (p=0.005) while birth order was associated with timely commencement of breastfeeding within one hour of life (p=0.022). Conclusion: The ever breastfed and exclusive breastfeeding rates were fairly high. However, the timely first suckling rate, increased use of breast milk substitute and giving of water alongside breast milk in the first six months of life were low. There is the need for continuous health education of mothers.