bluuebunny/crossref_metadata_2025_split huggingface dataset:
Supplier Diversification Under Buyer Risk
Authors: Chod Jiri , Trichakis Nikolaos , Tsoukalas Gerry 
Published: January 2019

When should a firm diversify its supply base? Most extant theories attribute supplier diversification to supplier risk. Herein, we develop a new theory that attributes supplier diversification to buyer risk. When suppliers are subject to the risk of buyer default, buyers may take costly action to signal creditworthiness so as to obtain more favorable terms. But once signaling costs are sunk, buyers sourcing from a single supplier become vulnerable to future holdup. Although ex ante supply base diversification can be effective at alleviating the holdup problem, we show that it comes at the expense of higher up-front signaling costs. We resolve the ensuing trade-off and show that diversification emerges as the preferred strategy in equilibrium. Our theory can help explain sourcing strategies when risk in a trade relationship originates from the sourcing firm, for example, a small-to-medium enterprise or a start-up; a setting that has eluded existing theories so far. This paper was accepted by Terry Taylor, operations management.
MAIS UM PARA O LATTES! PARA QUEM ESCREVEMOS, AFINAL?
Authors: Dos Santos Amaral Filho Fausto 
Published: January 2019

Resumo: A partir do espanto causado pelo título dado por uma pesquisadora a uma publicação sua no facebook – Mais um para o Lattes! –, na qual comemorava o fato de ter publicado um capítulo em uma coletânea, o presente artigo procura refletir não apenas sobre a importância da leitura para a efetividade do escrito publicado, mas, sobretudo, busca entender a maneira pela qual o produtivismo acadêmico, claramente inspirado no modo de produção capitalista, vinculado ao sistema de avaliação dos Programas de Pós-graduação – que, por sua vez, privilegia o modelo quantificador das ciências objetificadoras –, acaba impondo aos pesquisadores uma visão deturpada das práticas acadêmicas, principalmente na área das ciências humanas e sociais que, a não ser por um desvio dos seus fundamentos, conseguem se enquadrar no modelo imposto.Palavras-chave: Currículo Lattes. Produtivismo acadêmico. Avaliação. Abstract: Starting from the fright caused by the title chosen by a researcher in a facebook publication – One more to Lattes! –, when celebrating the fact of having published a chapter in a Compilation, the present text looks for thinking not only about reading relevance of the published article. Also, the text seeks for understanding the way academic productivism, which is inspired in capitalist mode of production and linked to evaluation system of post-graduation programs. These, by their turn, emphasize the quantifier model of objective sciences and impose a wrong point of view of academical practices, specially in Human and Social Sciences. Human and Social Sciences, unless through a deviation of their foundation, get to be framed to the imposed model.Keywords: Currículo Lattes. Academial productivism. Evaluation.
SIGNIFICADOS DA EDUCAÇÃO ESCOLAR PARA HOMENS PRIVADOS DE LIBERDADE
Authors: Draguette Hillesheim Sonia De Lurdes , Santina Murgo Camélia , Soares Sena Bárbara Cristina 
Published: January 2019

Resumo: O objetivo proposto para esta pesquisa foi conhecer o que o educando privado de liberdade pensa a respeito da educação no cárcere, assim como verificar a importância atribuída por ele à escola. Para tanto, foram entrevistados oito participantes do sexo masculino, com idades entre vinte a quarenta anos, em situação de detenção em um presídio do estado do Paraná. Os resultados revelaram que não houve indicação de aspectos negativos quanto à educação ofertada no presídio. No sentido oposto do que se esperava, os educandos referem-se à escola como um espaço formativo, acolhedor, que favorece a liberdade de expressão, o respeito e a formação de vínculos significativos com os professores. Acreditam na educação, mencionam metas e sonhos e mostraram-se otimistas com relação ao seu futuro. Espera-se que o estudo colabore para a reflexão acerca de estratégias educativas que possam favorecer a sensibilização e a preparação de alunos privados de liberdade quanto à importância da educação na vida e no retorno à sociedade.Palavras-chave: Educação de jovens e adultos. Privação de liberdade. Significados da educação.Abstract: The objective of this research was to know what the learner thinks about the education in the jail, as well as to verify the importance attributed by him to the school. For that, eight male participants, aged between twenty and forty years, were interviewed in a prison in the state of Paraná. The results revealed that there was no indication of negative aspects regarding the education offered in the prison. In the opposite direction of what was expected, the students refer to the school as a formative, welcoming space that favors freedom of expression, respect and the formation of significant ties with teachers. They believe in education, mention goals and dreams, and show optimism about their future. It is hoped that the study will contribute to the reflection on educational strategies that may favor the sensitization and preparation of students deprived of their liberty regarding the importance of education in life and in the return to society.Keywords: Youth and adult education. Deprivation of liberty. Meanings of education.
ANIMAÇÃO SOCIOCULTURAL NA ESCOLA – BRINCAR PARA EDUCAR
Authors: Matos Calheiros Trindade Bruno Miguel , Da Silva Pocinho Ricardo Filipe , Rodriguez Conde Maria José 
Published: January 2019

Resumo: O presente artigo tem como objetivo mostrar a perspectiva pedagógica da relação entre a Animação Sociocultural, o brincar e o educar. O brincar possibilita um crescimento saudável à criança e, assim, viver uma infância mais feliz, tornando-se um ser humano mais equilibrado ao nível físico, emocional e social. A Animação Sociocultural é relevante no desenvolvimento da criança, pois valorizando o brincar, previne conflitos e favorece as relações sociais. Esta interrelação com o brincar faz com que a ação da Animação Sociocultural aplicada à educação ajude a construir a personalidade da criança, instruindo normas e regras de socialização de maneira lúdica. A existência de um profissional que trabalhe a tão essencial vertente lúdica, supervisionando, orientando e estabelecendo relações positivas, reforça a aquisição de competências, aprendizagens, regras e valores fundamentais para um crescimento global da criança, ajudando-as a serem pessoas mais sociáveis e aptas. Este estudo procurou demonstrar qual o valor que a ação da Animação Sociocultural tem nas escolas, na promoção da socialização e na prevenção de comportamentos de risco.Palavra-chave: Animação Sociocultural. Brincar. Educação. Crescimento.Abstract: The purpose of this article is to show the pedagogical perspective of the da relationship between Sociocultural Animation, playing and educate. Playing allows a healthy growth for the child and, therefore, to live a happier childhood, becoming a more balanced human being on a physical, emotional and social level. Sociocultural Animation is relevant in the development of the child, by valuing playing it prevents conflicts and favours social relations. This interrelationship with playing allows the action of Sociocultural Animation, when applied to education, to help building the child's personality, instructing norms and rules of socialization in a playful way. Having a professional who works the essential playful strand, by supervising, guiding and establishing positive relationships reinforces the acquisition of skills, learning, rules and values fundamental to a child's global growth, helping them to be more sociable and capable people This study sought to demonstrate the value that the action of Sociocultural Animation has in schools, in promoting socialization and in the prevention of risk behaviours.Keyword: Sociocultural Animation. Playing. Education. Growing
A produção de cuidados na família e as políticas para o envelhecimento | The production of family care and policies for aging
Authors: Bernardo Maria Helena de Jesus 
Published: January 2019

A proposta de aprofundar as reflexões críticas em torno do envelhecimento populacional e o impacto dos cuidados no universo das famílias instigou a problematização dos dispositivos de proteção social dirigidos ao segmento idoso. Nessa direção, o artigo discorre sobre os cuidados domiciliares, na lógica do trabalho reprodutivo, mediante a configuração familista das políticas sociais brasileiras e dos paradigmas hegemônicos nas áreas da geriatria e gerontologia. A principal ênfase desse estudo repousa sobre a naturalização da responsabilização familiar no cenário contemporâneo de aumento da população idosa com maiores probabilidades de perdas funcionais, aliado às mudanças socioeconômicas e aos novos arranjos familiares. Reafirma-se o quanto é elementar lançar luz sobre essas questões, contribuindo para que assumam maior transparência em momento histórico tão nebuloso. Além disso, situam-se as demandas de cuidados impostas às famílias da classe trabalhadora como um desafio a ser enfrentado por políticas efetivamente públicas.Palavras-Chave: envelhecimento; cuidado; família; políticas sociais. Abstract – The proposal to deepen the critical reflections about the aging population and the impact of caregiving in the universe of families instigated the problematization of the social protection devices directed to the elderly segment. In this sense, this article deals with home care in the logic of reproductive work, through the familistic configuration of Brazilian social policies and hegemonic paradigms in the areas of geriatrics and gerontology. The main emphasis of this study rests on the naturalization of family responsibility in the contemporary scenario of an increasingly older population with greater probabilities of functional losses along with socioeconomic changes and new family arrangements. It reaffirms how fundamental it is to shed light on these issues, helping to ensure greater transparency in such a nebulous historical moment. In addition, it places the demands of care imposed on working-class families as a challenge to be faced by effectively public policies.Keywords: aging; caregiving; family; social policies.
Política social e família: desafios colocados aos assistentes sociais do Brasil e de Portugal | Social policy and the family: challenges faced by social workers in Brazil and Portugal
Authors: Braga Cilene Sebastiana da Conceição , Amaro Maria Inês Martinho Antunes 
Published: January 2019

Esse artigo parte de reflexões produzidas na pesquisa Serviço Social e famílias: análise das demandas postas aos assistentes sociais do Brasil e de Portugal, iniciada em 2017. Países da América Latina e da Europa têm enfrentando uma gama de desafios frente às tensões sociais decorrentes da ofen­siva neoliberal. O objetivo desse artigo é levantar algumas preocupações de assistentes sociais em vista da redução de direitos sociais. Existe a necessidade de capacitação e de reflexões dos profissionais com as mudanças nos processos de reorganização dos arranjos familiares e com o aumento da desigualdade. Em paralelo, assistiu-se, sob o signo da austeridade, a uma viragem das políticas sociais para modelos mais assistenciais e focalizados.Palavras-Chave: austeridade; assistência social; famílias. Abstract – This article is based on reflections produced in the research “Social work and families: an analysis of the demands placed on social workers in Brazil and Portugal” started in 2017. Countries in Latin America and Europe have a range of challenges facing the social tensions arising from the neoliberal advance. The purpose of this article is to raise some concerns of social workers about the diminishing social rights. There is a need for training of and reflection by professionals with the changes in the processes of reorganization of family arrangements and increase of inequality. In parallel, austerity was seen as a shift in social policies towards more assistencialized and focused models.Keywords: austerity; social assistance; families.
O protagonismo da juventude estudantil alemã no Maio de 68 | The leading role of German students in the events of May 1968
Authors: Teixeira Sandra Oliveira 
Published: January 2019

Com o 50° aniversário do chamado Maio de 68, este ensaio tem por objetivo sistematizar algumas características acerca da emergência e dinâmica do movimento estudantil nos anos 1960 na Berlim Ocidental, cidade palco central da Guerra Fria. Após discorrer sobre o contexto histórico de politização pela esquerda do movimento estudantil alemão e a dinâmica das manifestações estudantis, destacamos duas conclusões: 1) insurreições estudantis se opunham tanto à sociabilidade capitalista num tempo de expansão do capitalismo, à guerra norte-americana no Vietnã, como também ao silêncio diante do passado nazista, ao autoritarismo e à universidade não democrática; 2) a ausência de vínculo orgânico entre movimento estudantil e classe operária é em grande medida determinada pela adesão do movimento operário ao reformismo social-democrata alemão e ao passado nazista, que também contribui para dizimar lideranças comunistas e socialistas.Palavras-Chave: Maio 68; movimento estudantil; movimentos políticos; Berlim. Abstract – With the 50th anniversary of the events of May 1968, this essay aims to systematize some characteristics of the emergence and dynamics of the student movement in the 1960s in West Berlin, the central stage of the Cold War. After discussing the historical context of politicization by the left of the German student movement and the dynamics of student demonstrations, we highlight two conclusions. First, that student insurrections were opposed both to capitalist sociability in a time of expansion of capitalism and the American war in Vietnam, and also to the silence in face of Germany’s Nazi past, authoritarianism, and undemocratic universities. Second, the absence of an organic link between the student movement and the working class was largely determined by the adherence of the workers’ movement to German Social-Democratic reformism and the Nazi past, which also contributed to decimate communist and socialist leaderships.Keywords: May 1968; student movement; political movements; Berlin.
Petrography, modal composition and tectonic provenance of some selected sandstones from the Molteno, Elliot and Clarens Formations, Karoo Supergroup, in the Eastern Cape Province, South Africa
Authors: Chima Priscilla , Baiyegunhi Christopher , Liu Kuiwu , Gwavava Oswald 
Published: January 2019

Abstract
The Late Triassic - Early Jurassic non marine clastic sediments of the Molteno, Elliot and Clarens Formations were studied to deduce their mineralogy and tectonic provenance. The study is based on road-cut exposures of the formations in the Eastern Cape Province of South Africa. Petrographic studies based on quantitative analysis of the detrital minerals shows that the clastic sediments (mostly sandstones) are predominantly made up of quartz, feldspars, and metamorphic and igneous rock fragments. Among the main detrital framework grains, quartz constitutes about 62-91%, feldspar 6-24% and 3-19% of lithic fragments. The sandstones can be classified as both sublitharenite and subarkose. Although, most of the sandstones (> 70 %) plotted in the sub-litharenite field. Petrographic and XRD analyses revealed that the sandstones originated from granitic and metamorphic rock sources. The QFL (Quartz-feldspar-lithic fragments) ternary diagrams indicate that the sandstones were derived from recycled or quartzose source rocks reflecting a craton interior or transitional continental setting which probably came from the Cape Fold Belt. This possibly revealed that most of the sandstones might have been derived as a result of weathering and erosion of igneous and metamorphic rocks in the Cape Supergroup. The study has revealed the depositional environments, and provide a basis for the description and interpretation of the sedimentology of the Molteno, Elliot and Clarens Formations.
Analysis of the Factors that Influence Diagenesis in the Terminal Fan Reservoir of Fuyu Oil Layer in the Southern Songliao Basin, Northeast China
Authors: Wang Jinkai , Jinliang Zhang , Xie Jun 
Published: January 2019

AbstractThe diagenesis mechanism and the physical properties of a terminal fan reservoir are determined by nuclear magnetic resonance (NMR), X-ray diffraction and scanning electron microscopy. The main provenance directions are NE and SE, and the two oppositely directed fans converge to form a small catchment basin. The mudstone color is red or purplish red, which accounts for 60% of the total rock. The sandstones are lithic-feldspar sandstones and feldspar-lithic sandstones, with a smaller quartz component relative to the adjacent sandstone formations. The reservoir mainly consists of intergranular pores (51%), intragranular pores (22%), corrosion pores (20%), micro-fractures (5%) and clay matrix pores (2%). The porosity of the reservoir is only 13%, and the throats are fine with high displacement pressure. The diagenetic processes included compaction, cementation, replacement, and dissolution, and the most influential factor on the reservoir porosity was compaction. The detrital rock cement mainly consists of clay minerals (48%), quartz (23%), carbonate (19%), feldspar (7%) and dawsonite (3%). Among them, the mixed I/S layer has the most content and the most important cementation. In addition, a small amount of dawsonite is found in the pores of the sandstone, which is a unique mineral that is related to the background of inorganic CO2. The main diagenesis factors that affected this sandstone’s porosity were compaction, early quartz overgrowth and calcite cementation, which reduced the porosity from 40% to approximately 8%. Although dissolution and fracture increased the porosity (from 8% to 26%), clay- and carbonate-mineral cementation during the late diagenesis period had a dramatic effect, forming a typical low-porosity and low-permeability reservoir.
Spatial-temporal variability of the fluctuation of water level in Poyang Lake basin, China
Authors: Ning Lixin , Zhou Yunkai , Yang Jing , Cheng Changxiu , Song Changqing , Shen Shi 
Published: January 2019

AbstractPoyang Lake basin is one of the most biodiversity areas in China. Fluctuation of water level is an important factor of hydrological process which is a guarantee of ecosystem health and biodiversity conservation. To measure its spatial-temporal variation, classical statistical methods and permutation entropy were employed: 1) Variation of water level downstream of Poyang Lake during one year follows a periodical pattern, while it is random in upper reaches. That is, the range of water level in upper reaches is much less than that in downstream. 2) Fluctuation of water level in winter and spring is more complicated, more irregular and more random than that in other seasons. This is because in winter and spring, precipitation directly causes rising in water level rather than generating surface runoff, while it is reversed in summer. 3) The ranges, standard deviation, coefficient of variation and fluctuation of water level decrease with rising in elevation. 4) In sub-basin scale, fluctuation of water level in upper reaches is more complicated than that in downstream, e specially along one river. Mechanically, catchment size and confluence process may be the main factors influencing fluctuation of water level over Poyang Lake basin.
Modern random number generator design – Case study on a secured PLL-based TRNG
Authors: Fischer Viktor , Bernard Florent , Bochard Nathalie 
Published: January 2019

Abstract
Random number generators (RNGs) are basic cryptographic primitives. They are used to generate cryptographic keys, initialization vectors, challenges and nonces in cryptographic protocols, and random masks in countermeasures against side channel attacks. RNGs designed for cryptography must generate unpredictable random numbers. According to recent security standards, the unpredictability of generated random numbers must be thoroughly evaluated. In this paper, we provide a concrete example – a phase-locked loop based RNG protected by novel dedicated embedded tests, on which we show how stringent security requirements including unpredictability of generated numbers can be met, while respecting the standards.
Evidence ofZip1Promoting Sister Kinetochore Mono-orientation During Meiosis in Budding Yeast
Authors: Prajapati Hemant Kumar , Agarwal Meenakshi , Mittal Priyanka , Ghosh Santanu K 
Published: January 2019

AbstractHalving of the genome during meiosis I is achieved as the homologous chromosomes move to the opposite spindle poles whereas the sister chromatids stay together and move to the same pole. This requires that the sister kinetochores should take a side-by-side orientation in order to connect to the microtubules emanating from the same pole. Factors that constrain sister kinetochores to adopt such orientation are therefore crucial to achieve reductional chromosome segregation in meiosis I. In budding yeast, a protein complex, known as monopolin, is involved in conjoining of the sister kinetochores and thus facilitates their binding to the microtubules from the same pole. In this study, we report Zip1, a synaptonemal complex component, as another factor that might help the sister kinetochores to take the side-by-side orientation and promote their mono-orientation on the meiosis I spindle. From our results, we propose that the localization of Zip1 at the centromere may provide an additional constraining factor that promotes monopolin to cross-link the sister kinetochores enabling them to mono-orient.
Identification and Characterization of Transcripts Regulated by Circadian Alternative Polyadenylation in Mouse Liver
Authors: Gendreau Kerry L , Unruh Benjamin A , Zhou Chuanli , Kojima Shihoko 
Published: January 2019

Abstract
Dynamic control of gene expression is a hallmark of the circadian system. In mouse liver, approximately 5–20% of RNAs are expressed rhythmically, and over 50% of mouse genes are rhythmically expressed in at least one tissue. Recent genome-wide analyses unveiled that, in addition to rhythmic transcription, various post-transcriptional mechanisms play crucial roles in driving rhythmic gene expression. Alternative polyadenylation (APA) is an emerging post-transcriptional mechanism that changes the 3′-ends of transcripts by alternating poly(A) site usage. APA can thus result in changes in RNA processing, such as mRNA localization, stability, translation efficiency, and sometimes even in the localization of the encoded protein. It remains unclear, however, if and how APA is regulated by the circadian clock. To address this, we used an in silico approach and demonstrated in mouse liver that 57.4% of expressed genes undergo APA and each gene has 2.53 poly(A) sites on average. Among all expressed genes, 2.9% of genes alternate their poly(A) site usage with a circadian (i.e., approximately 24 hr) period. APA transcripts use distal sites with canonical poly(A) signals (PASs) more frequently; however, circadian APA transcripts exhibit less distinct usage preference between proximal and distal sites and use proximal sites more frequently. Circadian APA transcripts also harbor longer 3′UTRs, making them more susceptible to post-transcriptional regulation. Overall, our study serves as a platform to ultimately understand the mechanisms of circadian APA regulation.