bluuebunny/crossref_metadata_2025 huggingface dataset:
Diversidade do perfil dos gestores como uma alavanca estratégica para criação de valor: um enfoque no conservadorismo contábil de empresas brasileiras e francesas
Authors: Degenhart Larissa , Barbosa Edmery Tavares , Silva Marcia Zanievicz da
Published: October 2021

Purpose – The research aimed to analyze the relationship between the diversity of the managers' profile as a lever for value creation and the accounting conservatism of Brazilian and French companies.Design/methodology/approach – The sample consisted of 71 Brazilian companies and 67 French companies, listed in the B3 Index IBrX-100 and the SBF 120 Index of Euronext Paris, respectively. Multiple Regression was used to analyze the data (2011 to 2015).Findings – The results revealed that the characteristics of the diversity of the profile of Brazilian managers that are related to accounting conservatism are: age, place of formation and position occupied in the directive body. In France, the characteristics are: degree of schooling, link with the company and function performed.Research limitations/implications – The limitation of the impossibility of generalizing the results is highlighted. As theoretical contributions, this research analyzes an element that can be considered for analysis in the face of accounting conservatism: the profile of managers.Practical implications – The diversity of the managers' profile should be considered in companies, since it has repercussions on accounting conservatism, that is, on how managers conduct accounting to maximize company value.Social implications – The findings have social implications for professionals who aim to enter the Brazilian and French labor market.Originality/value – The study advances in the accounting area, as it analyzes the governing body of organizations, an important differential in the analysis of the demographic, professional and performance characteristics of managers and their relationship with accounting conservatism.
O uso do cartão de crédito: o valor da marca e materialismo influenciam no comportamento impulsivo de compra?
Authors: Rodrigues Luis Adriano , Oliveira Marta Olivia Rovedder de
Published: October 2021

Purpose - This study aims to identify factors, such as materialism and brand equity, that can influence impulsive buying behavior associated with the use of a credit card.Design/methodology/approach - We adopted the survey method, collecting 384 structured face-to-face questionnaires, focusing on the footwear industry. We collected the data in the state of Rio Grande do Sul - Brazil, covering the seven mesoregions of the state. Confirmatory factor analysis, descriptive statistics, ANOVA, T test and Structural Equation Modeling (SEM) were used to analyze the data.Findings – In this study, we find that brand equity does not impact impulsive buying behavior, but the credit card positively impacts impulsive buying behavior.Research limitations/implications – The research was executed just in one province, so future research could be developed in other’s places and culturesPractical Implications – This study can help scholars and managers of footwear industry understand impulsive buying behavior of its consumers.Original value – This study shows the relationship between credit card use, materialism and impulsive buying behavior constructs.
Bullying e Educação Física escolar: uma revisão da produção científica
Authors: Fuchs Fabiano , Folle Alexandra , Cerignoni Benites Larissa , Preichardt Duek Viviane
Published: October 2021

O estudo objetivou revisar artigos originais sobre bullying nas aulas de Educação Física. As bases de dados consultadas foram: Lilacs, Scielo, Medline/EBSCO, Scopus, SPORTDiscus e Web of Science. Foram selecionados 12 artigos publicados entre os anos de 2010 e 2015. Os resultados indicam que a vitimização por bullying aparece associada a indivíduos com habilidades motoras limitadas, baixo desempenho motor e menor participação nas aulas de Educação Física. Evidencia-se, assim, a necessidade de realização de estudos de aprofundamento sobre o bullying e suas manifestações no contexto escolar, particularmente, nas aulas de Educação Física.
Teorias de currículo da Educação Física: o que dizem acadêmicos sobre as suas implicações na formação inicial docente
Authors: Pessoa Amanda Raquel Rodrigues , Moura Marla Maria Moraes , Ferreira José Danilo Feitosa
Published: October 2021

As teorias curriculares da Educação Física, dentro das discussões acadêmicas, são um campo de complexidade que atinge o universo profissional dos diferentes professores da área. Acreditamos que essa diversidade de teorias provoca implicações na formação profissional em Educação Física, configurando-se questão de debate, conflitos e dilemas entre os estudantes e professores. Com isso, buscamos analisar a compreensão dos acadêmicos, de um curso de Licenciatura em Educação Física, sobre as implicações das abordagens pedagógicas da área, para a sua formação profissional. A pesquisa caracteriza-se como do tipo qualitativa, com aspectos descritivos. O público-alvo foram acadêmicos de um curso de Licenciatura em Educação Física. Com eles, realizamos a entrevista semiestruturada. Os acadêmicos reconhecem que as abordagens desempenham a função de nortear a prática docente nos aspectos identitários e didático-metodológicos, mas sentem dificuldades em atrelar a sua prática pedagógica às abordagens, gerando mal-entendidos e situações conflitantes.
“Conheço bem mais uma arte do outro lado do mundo que uma aqui do outro lado do rio”: luta Marajoara e reconhecimento em academias de ginástica
Authors: Santos Carlos Afonso Ferreira dos , Andrade Welison Alan Gonçalves , Freitas Rogério Gonçalves de
Published: October 2021

O objetivo da pesquisa foi compreender como a lógica de funcionamento de academias de ginástica de Belém-PA (Brasil) influencia no reconhecimento e oferta da prática da Luta Marajoara. Constitui-se de pesquisa qualitativa com dados obtidos a partir de entrevistas semiestruturadas com professores de lutas e coordenadores de academias. Constatou-se ausência da prática da Luta Marajoara no espaço das academias investigadas e conclui-se que a condição para seleção das modalidades de lutas depende exclusivamente da demanda oriunda dos clientes, legitimando, portanto, o não reconhecimento da Luta Marajoara nas academias de ginástica. Outra conclusão foi a de que o mercado esportivo é um sistema determinante para o “gosto” de práticas de lutas mais reconhecidas que a Luta Marajoara, contribuindo para o esquecimento desta modalidade de luta autenticamente brasileira.
Netnografia da natação e das práticas corporais aquáticas na educação física escolar
Authors: Nazario Murilo
Published: October 2021

Esta pesquisa buscou responder à seguinte questão: como as práticas corporais aquáticas e a natação, em específico, enquanto conteúdos de ensino da educação física escolar, são difundidas no ciberespaço das redes sociais? Assume como objetivo discutir e analisar, a partir da netnografia, o lugar das práticas corporais aquáticas/natação no âmbito da educação física escolar. Para tanto, realizou-se uma netnografia nas redes sociais Facebook, Instagram, Twitter, LinkedIn e Youtube. Os resultados sinalizam para um contexto de incipiência no que tange ao processo de ensino aprendizagem envolvendo a natação em âmbito escolar e difundidas no ciberespaço. No entanto, nota-se a difusão do ensino desse conteúdo a partir das rotinas de sequências pedagógicas compostas de conteúdos que priorizam o domínio técnico gestual dos quatro nados clássicos. Há também uma prevalência do ensino desse conteúdo nos cotidianos das escolas particulares, todavia em formato de escolinhas e como propaganda extracurricular.
Levantamento da produção sobre sociedade, cultura e Educação Física em periódicos brasileiros da Educação Física (1999-2019)
Authors: Mezzaroba Cristiano , Araujo Lisboa Lucas Vinicius
Published: October 2021

O artigo apresenta um levantamento de dados que explicita a produção de conhecimento científico e pedagógico quando relacionamos a Educação Física (EF) brasileira aos aspectos sociais e culturais, evidenciando a aproximação do campo da EF aos conhecimentos das Ciências Humanas e Sociais. Assim, neste estudo, de natureza qualitativa e de caráter descritivo, do tipo documental, realizamos a identificação, quantificação e sistematização do volume de artigos e estudos encontrados nos periódicos brasileiros de EF, referentes ao período compreendido entre 1999 a 2019, os quais foram agrupados em 10 eixos temáticos. Também identificamos os principais agentes da EF brasileira que produzem e veiculam conhecimento pedagógico e sociocultural no campo da EF, bem como, os principais pensadores sociais acionados pelos agentes brasileiros em suas publicações, o que torna possível a existência do conhecimento das Humanidades no contexto da EF, ampliando as condições de possibilidades investigativas, pedagógicas e formativas da EF brasileira.
Teoria(s) feminista(s) e história(s) do tempo presente: interseccionalidade, subalternidade e decolonialidade
Authors: Taraud Christelle
Published: October 2021

O objetivo deste artigo é (re)pensar a(s) história(s) do tempo presente à luz das teorias feministas que, através dos conceitos de interseccionalidade, subalternidade e decolonialidade, oferecem uma visão ao mesmo tempo fecunda e renovada. No cerne da abordagem, a ideia de contornar/submergir as visões hegemônicas, totalizantes e / ou dominantes, para aclarar a contrário a pluralidade de existência(s)/experiência(s) e modalidades práticas, teóricas e simbólicas de sua(s) múltiplas expressão(ões) por meio de pluri-interpretação(ões)/reflexão(ões) pensadas de maneira horizontal (ao nível do solo, pode-se dizer) e não hierárquica(s). Aqui um multifocal de segmentos polimórficos, traços difusos e narrativas fragmentárias emergiria, formando corpo-unidade não por categorização-hierarquização fixista, mas por justaposição-coabitação lábil, propondo uma visão verdadeiramente humana e universal. Palavras-chave: teorias feministas; interseccionalidade; subalternidade; decolonialidade; feminicídio/ecocídio.
Fantasmagoría: imagen de la contradicción en un tiempo suspendido
Authors: Acosta Sierra Paola Helena
Published: October 2021

Río Abajo, obra presentada por la artista colombiana Erika Diettes en el 2008, plantea un encuentro con el duelo que enfrentan los familiares de personas desaparecidas que han sido arrojadas a los ríos de Colombia. La obra se compone de una serie de fotografías de prendas de vestir, flotando en agua, que pertenecían a las víctimas, lo que nos sumerge en un mundo plagado de fantasmas reales donde los límites temporales y espaciales que delimitan el mundo de los vivos se distienden, y establecen un diálogo doloroso pero necesario en una sociedad que tiende al olvido y al anestesiamiento. Aquí hay una aproximación desde la estética y la filosofía a esta obra, en un lugar –Colombia– donde hablar de los desaparecidos es un acto político.
Retinopathy of prematurity in the period 2015-2019 in a tertiary referral centre in Slovenia
Authors: Tekavčič Pompe Manca , Markelj Špela , Kornhauser Cerar Liljana
Published: October 2021

Background: Retinopathy of prematurity (ROP) is the leading cause of blindness among prematurely born children. The incidence of any stage of ROP in children born before the 31st gestational week in Europe and the USA is between 10-45%. The purpose of this study was to show characteristics of ROP between 2015 and 2019 at the Neonatal Intensive Care Unit of the University Medical Centre Ljubljana (NICU-Lj), which is the larger of the two tertiary referral centres in Slovenia and in which more than two thirds of Slovenian very low birth weight children are treated.

Methods: All prematurely born children screened for ROP at NICU-Lj between 2015 and 2019 were included in the study. The following parameters were recorded: number of children screened, total number of exams, number of exams per child, number of children with ROP, ROP stages, number of children who needed ROP treatment and number of treatments per child treated.

Results: Between 2015 and 2019, 82-130 prematurely born children fulfilled ROP screening criteria each year. A total of 1,412 exams were performed over the period of five years (range: 239-386 per year). Every child had one or more ROP screening exams (range: 1-10). Extremely preterm children born before the 27th week of gestation had more exams (average: 5 exams/child) compared to other prematurely born children (average: 1.5 exams/child). The number of prematurely born children with any stage of ROP ranged from 17 to 30 per year. ROP of any stage was present in 18.75% (2015), in 17.7% (2016), in 23% (2017), in 29.3% (2018), and in 24.1% (2019). More than 70% of all babies with ROP were born before the 27th gestational week. The most mature baby with ROP was born with 29 6/7 weeks of gestational age. Every year, 15-35% of babies with ROP received laser treatment.

Conclusions: ROP is an important disease in prematurely born children. During the period 2015-2019, the incidence of any stage of ROP and of serious ROP requiring treatment was comparable. The screening and treatment of ROP requires intense cooperation between paediatric ophthalmologists and neonatologists in order to prevent blindness in prematurely born children.
Improving the Efficiency of the Vilnius City Transport System in the Context of Sustainable Mobility and Multimodality
Authors: Jarašūnienė Aldona , Česnulaitis Domas
Published: October 2021

Vilnius is one of the most dynamic cities in Eastern Europe experiencing a continuous increase in the number of vehicles and the development of road transport networks associated with a wide range of environmental impacts, greenhouse gas emissions, depletion of raw materials, energy and fuel consumption and also a social impact, expressed in the quality of life of people, human health, traffic jam and economic impact because of generated losses of economic efficiency. Different strategies have been adopted by the city of Vilnius to tackle the increasing traffic flows with a modest impact and without a long-term effect. This article aims at analysing the measures taken to improve the transport system of Vilnius city and presenting different types of solution, which could improve interconnectivity of passenger transport as ways to solve the problems of the urban transport system.
Prediction of Mechanical Alterations in Multi-Layer Sbs-Modified Hot Mix Asphalt and Soil-Foundation Structure
Authors: Karakas Ahmet Sertac , Ortes Faruk
Published: October 2021

Traffic and environmental conditions are key parameters in road applications. Empirical studies and numerical analyses, which are widely adopted in material design studies, are used for analysing superstructures of the roads, and developmental approaches are improved for future designs as well. In flexible pavements, polymer and fibre-reinforced additives are frequently used to make them durable against deteriorations and to extend their service life. One of the additives that is mostly preferred is the Styrene Butadiene Styrene (SBS) material thanks to a variety of their physical and chemical properties. Physical and mechanical properties of the natural ground layer and its interactions with the superstructure are crucial parameters in terms of performance under various environmental and traffic conditions. In this study, the use of SBS-modified Hot Mix Asphalt (HMA) was examined as a flexible superstructure, and the mechanical properties of the granular base and the natural ground layer were tested. The stress and deformation occurring within layers in various periods were also considered. The presented study is a suitable tool for the use of additives that significantly contribute to the mechanical properties and service life of the roads. In this study, it is concluded that the use of additives significantly improves the mechanical response and service life of the roads.
Feminismo no cinema brasileiro: a representação das mulheres nordestinas nas telas
Authors: Paiva Carla Conceição da Silva
Published: October 2021

O trabalho é uma reflexão sobre as representações das mulheres nordestinas presentes no cinema brasileiro da década de 1980 e a relação dessas encenações com o movimento feminista da época. Considerando que um filme apresenta muito da sua realidade social, partimos das relações existentes entre cinema e História e a Análise do discurso para decompor as imagens de Gabriela (1983); Parahyba, mulher-macho (1983); A Hora da estrela (1985) e Luzia-Homem (1987).
TAZ inhibits glucocorticoid receptor and coordinates hepatic glucose homeostasis in normal physiological states
Authors: Xu Simiao , Liu Yangyang , Hu Ruixiang , Wang Min , Stöhr Oliver , Xiong Yibo , Chen Liang , Kang Hong , Zheng Lingyun , Cai Songjie , He Li , Wang Cunchuan , Copps Kyle D , White Morris F , Miao Ji
Published: October 2021

The elucidation of the mechanisms whereby the liver maintains glucose homeostasis is crucial for the understanding of physiological and pathological states. Here, we show a novel role of hepatic transcriptional co-activator with PDZ-binding motif (TAZ) in the inhibition of glucocorticoid receptor (GR). TAZ is abundantly expressed in pericentral hepatocytes and its expression is markedly reduced by fasting. TAZ interacts via its WW domain with the ligand-binding domain of GR to limit the binding of GR to the GR response element in gluconeogenic gene promoters. Therefore, liver-specific TAZ knockout mice show increases in glucose production and blood glucose concentration. Conversely, the overexpression of TAZ in mouse liver reduces the binding of GR to gluconeogenic gene promoters and glucose production. Thus, our findings demonstrate that hepatic TAZ inhibits GR transactivation of gluconeogenic genes and coordinates gluconeogenesis in response to physiological fasting and feeding.
A functional genetic toolbox for human tissue-derived organoids
Authors: Sun Dawei , Evans Lewis , Perrone Francesca , Sokleva Vanesa , Lim Kyungtae , Rezakhani Saba , Lutolf Matthias , Zilbauer Matthias , Rawlins Emma L
Published: October 2021

Human organoid systems recapitulate key features of organs offering platforms for modelling developmental biology and disease. Tissue-derived organoids have been widely used to study the impact of extrinsic niche factors on stem cells. However, they are rarely used to study endogenous gene function due to the lack of efficient gene manipulation tools. Previously, we established a human foetal lung organoid system (Nikolić et al., 2017). Here, using this organoid system as an example, we have systematically developed and optimised a complete genetic toolbox for use in tissue-derived organoids. This includes ‘Organoid Easytag’, our efficient workflow for targeting all types of gene loci through CRISPR-mediated homologous recombination followed by flow cytometry for enriching correctly targeted cells. Our toolbox also incorporates conditional gene knockdown or overexpression using tightly inducible CRISPR interference and CRISPR activation which is the first efficient application of these techniques to tissue-derived organoids. These tools will facilitate gene perturbation studies in tissue-derived organoids facilitating human disease modelling and providing a functional counterpart to many ongoing descriptive studies, such as the Human Cell Atlas Project.
Closed-loop auditory stimulation method to modulate sleep slow waves and motor learning performance in rats
Authors: Moreira Carlos G , Baumann Christian R , Scandella Maurizio , Nemirovsky Sergio I , Leach Sven , Huber Reto , Noain Daniela
Published: October 2021

Slow waves and cognitive output have been modulated in humans by phase-targeted auditory stimulation. However, to advance its technical development and further our understanding, implementation of the method in animal models is indispensable. Here, we report the successful employment of slow waves’ phase-targeted closed-loop auditory stimulation (CLAS) in rats. To validate this new tool both conceptually and functionally, we tested the effects of up- and down-phase CLAS on proportions and spectral characteristics of sleep, and on learning performance in the single-pellet reaching task, respectively. Without affecting 24 hr sleep-wake behavior, CLAS specifically altered delta (slow waves) and sigma (sleep spindles) power persistently over chronic periods of stimulation. While up-phase CLAS does not elicit a significant change in behavioral performance, down-phase CLAS exerted a detrimental effect on overall engagement and success rate in the behavioral test. Overall CLAS-dependent spectral changes were positively correlated with learning performance. Altogether, our results provide proof-of-principle evidence that phase-targeted CLAS of slow waves in rodents is efficient, safe, and stable over chronic experimental periods, enabling the use of this high-specificity tool for basic and preclinical translational sleep research.
AKAP79 enables calcineurin to directly suppress protein kinase A activity
Authors: Church Timothy W , Tewatia Parul , Hannan Saad , Antunes João , Eriksson Olivia , Smart Trevor G , Hellgren Kotaleski Jeanette , Gold Matthew G
Published: October 2021

Interplay between the second messengers cAMP and Ca2+ is a hallmark of dynamic cellular processes. A common motif is the opposition of the Ca2+-sensitive phosphatase calcineurin and the major cAMP receptor, protein kinase A (PKA). Calcineurin dephosphorylates sites primed by PKA to bring about changes including synaptic long-term depression (LTD). AKAP79 supports signaling of this type by anchoring PKA and calcineurin in tandem. In this study, we discovered that AKAP79 increases the rate of calcineurin dephosphorylation of type II PKA regulatory subunits by an order of magnitude. Fluorescent PKA activity reporter assays, supported by kinetic modeling, show how AKAP79-enhanced calcineurin activity enables suppression of PKA without altering cAMP levels by increasing PKA catalytic subunit capture rate. Experiments with hippocampal neurons indicate that this mechanism contributes toward LTD. This non-canonical mode of PKA regulation may underlie many other cellular processes.
Calcium dependence of neurotransmitter release at a high fidelity synapse
Authors: Eshra Abdelmoneim , Schmidt Hartmut , Eilers Jens , Hallermann Stefan
Published: October 2021

The Ca2+-dependence of the priming, fusion, and replenishment of synaptic vesicles are fundamental parameters controlling neurotransmitter release and synaptic plasticity. Despite intense efforts, these important steps in the synaptic vesicles’ cycle remain poorly understood due to the technical challenge in disentangling vesicle priming, fusion, and replenishment. Here, we investigated the Ca2+-sensitivity of these steps at mossy fiber synapses in the rodent cerebellum, which are characterized by fast vesicle replenishment mediating high-frequency signaling. We found that the basal free Ca2+ concentration (<200 nM) critically controls action potential-evoked release, indicating a high-affinity Ca2+ sensor for vesicle priming. Ca2+ uncaging experiments revealed a surprisingly shallow and non-saturating relationship between release rate and intracellular Ca2+ concentration up to 50 μM. The rate of vesicle replenishment during sustained elevated intracellular Ca2+ concentration exhibited little Ca2+-dependence. Finally, quantitative mechanistic release schemes with five Ca2+ binding steps incorporating rapid vesicle replenishment via parallel or sequential vesicle pools could explain our data. We thus show that co-existing high- and low-affinity Ca2+ sensors mediate priming, fusion, and replenishment of synaptic vesicles at a high-fidelity synapse.
GAC3D: improving monocular 3D object detection with ground-guide model and adaptive convolution
Authors: Bui Minh-Quan Viet , Ngo Duc Tuan , Pham Hoang-Anh , Nguyen Duc Dung
Published: October 2021

Monocular 3D object detection has recently become prevalent in autonomous driving and navigation applications due to its cost-efficiency and easy-to-embed to existent vehicles. The most challenging task in monocular vision is to estimate a reliable object’s location cause of the lack of depth information in RGB images. Many methods tackle this ill-posed problem by directly regressing the object’s depth or take the depth map as a supplement input to enhance the model’s results. However, the performance relies heavily on the estimated depth map quality, which is bias to the training data. In this work, we propose depth-adaptive convolution to replace the traditional 2D convolution to deal with the divergent context of the image’s features. This lead to significant improvement in both training convergence and testing accuracy. Second, we propose a ground plane model that utilizes geometric constraints in the pose estimation process. With the new method, named GAC3D, we achieve better detection results. We demonstrate our approach on the KITTI 3D Object Detection benchmark, which outperforms existing monocular methods.
Potential sources and characteristic occurrence of mobile colistin resistance (mcr) gene-harbouring bacteria recovered from the poultry sector: a literature synthesis specific to high-income countries
Authors: Anyanwu Madubuike Umunna , Jaja Ishmael Festus , Okpala Charles Odilichukwu R. , Jaja Chinwe-Juliana Iwu , Oguttu James Wabwire , Chah Kennedy Foinkfu , Shoyinka Vincent Shodeinde
Published: October 2021

Understanding the sources, prevalence, phenotypic and genotypic characteristics of mcr gene-harbouring bacteria (MGHB) in the poultry sector is crucial to supplement existing information. Through this, the plasmid-mediated colistin resistance (PMCR) could be tackled to improve food safety and reduce public health risks. Therefore, we conducted a literature synthesis of potential sources and characteristic occurrence of MGHB recovered from the poultry sector specific to the high-income countries (HICs). Colistin (COL) is a last-resort antibiotic used for treating deadly infections. For more than 60 years, COL has been used in the poultry sector globally, including the HICs. The emergence and rapid spread of mobile COL resistance (mcr) genes threaten the clinical use of COL. Currently, ten mcr genes (mcr-1 to mcr-10) have been described. By horizontal and vertical transfer, the mcr-1, mcr-2, mcr-3, mcr-4, mcr-5, and mcr-9 genes have disseminated in the poultry sector in HICs, thus posing a grave danger to animal and human health, as harboured by Escherichia coli, Klebsiella pneumoniae, Salmonella species, and Aeromonas isolates. Conjugative and non-conjugative plasmids are the major backbones for mcr in poultry isolates from HICs. The mcr-1, mcr-3 and mcr-9 have been integrated into the chromosome, making them persist among the clones. Transposons, insertion sequences (IS), especially ISApl1 located downstream and upstream of mcr, and integrons also drive the COL resistance in isolates recovered from the poultry sector in HICs. Genes coding multi-and extensive-drug resistance and virulence factors are often co-carried with mcr on chromosome and plasmids in poultry isolates. Transmission of mcr to/among poultry strains in HICs is clonally unrestricted. Additionally, the contact with poultry birds, manure, meat/egg, farmer’s wears/farm equipment, consumption of contaminated poultry meat/egg and associated products, and trade of poultry-related products continue to serve as transmission routes of MGHB in HICs. Indeed, the policymakers, especially those involved in antimicrobial resistance and agricultural and poultry sector stakeholders-clinical microbiologists, farmers, veterinarians, occupational health clinicians and related specialists, consumers, and the general public will find this current literature synthesis very useful.
The largest theropod track site in Yunnan, China: a footprint assemblage from the Lower Jurassic Fengjiahe Formation
Authors: Li Hongqing , Peyre de Fabrègues Claire , Bi Shundong , Wang Yi , Xu Xing
Published: October 2021

Yunnan Province is famous for its diversified Lufeng vertebrate faunas containing many saurischian dinosaur remains. In addition to the body fossil record, dinosaur ichnofossils have also been discovered in Yunnan, and the number of published track sites is on the rise. We report a theropod assemblage from the Lower Jurassic Fengjiahe Formation in Xiyang, central Yunnan. It is the third report and description of dinosaur footprints from the Fengjiahe Formation, and this new track site is the largest in number of footprints for theropods in Yunnan. Over one hundred footprints are preserved on different layers of a claystone-dominated succession close to the Lower-Middle Jurassic boundary. The track area is referred to as a lacustrine shallow-water paleoenvironment. Tracks vary in size, morphology, and preservation. All are tridactyl and digitigrade, and some are identified as undertracks. The best preserved footprints were divided into three morphotypes: morphotype A (>8 cm–<21 cm) resembling Grallator; morphotype B (>27 cm–<30 cm) identified as Kayentapus xiaohebaensis; and morphotype C, an isolated footprint (39 cm) referred to the ichnogenus Kayentapus. Although footprint shape is influenced by many factors, biotic or abiotic, morphological differences among tracks such as size, divarication angles and proportions imply that at least three different kinds of theropods were visiting this site frequently. Theropod body fossils found in the surrounding area, such as Sinosaurus, turn out to be similar in body size to the projected size estimated from footprint lengths at the track site. In Yunnan, discoveries of theropod body fossils are rare. In that respect, the track record is a useful diversity indicator which can help to encompass theropod diversity patterns. Broadly speaking, large predators (five meters long or more) were uncommon in Early Jurassic ecosystems. Accordingly, large tracks are scarce on the track site, but not absent. Trackmakers of all sizes presumably coexisted in this tropical Jurassic ecosystem, and were regularly drawn to the track site in search of water or food resources.
Impacts of land cover change on the plant resources of an endangered pollinator
Authors: Gómez-Ruiz Emma P. , Lacher Jr Thomas E. , Moreno-Talamantes Antonio , Flores Maldonado José Juan
Published: October 2021

One of the key drivers of pollinator declines is land cover change. We documented for the first time the impacts of over three decades of land cover change in Mexico on the plant resources of an endangered migratory pollinator, the Mexican long-nosed bat, Leptonycteris nivalis. This species is considered endangered under national and international criteria due to population declines over 50% in the past 10 years. Pregnant females of this bat species migrate every year following the blooms of Agave spp. from central Mexico to the southern United States; moving pollen over its 1,200 km long migratory corridor and pollinating distant populations of Agave spp. Increases in human populations density and agricultural expansion may be reducing agave habitat over time. The objective of our study is to understand the land cover change trends in the northern range of the bat and identify potential fragmentation patterns in the region. We analyzed changes that occurred in three vegetation types where agaves are found in five time periods 1985, 1993, 2002, 2007 and 2011. The area of the three vegetation types selected was reduced by using only the overlap with potential agave habitat created with ecological niche modeling algorithms to obtain the available agave habitat. We then calculated fragmentation metrics for each period. We found a significant portion of habitat lost mainly due to expansion in agriculture. The total number of patches increased after 1985. Only 9% of the available agave habitat in 2011 is inside the limits of protected areas. We recommend restoring agave populations in depleted areas to help prevent soil erosion and provide multiple socio-economic benefits for the region in the short term, and, in the long-term maintaining foraging resources for nectar-feeding bats.
Aprender a estudiar textos en primaria: propuestas para innovar en las prácticas de lectura de textos escolares
Authors:   Laboratório de educação (Brasil), Sepúlveda Angélica , Paulet Piedra Nicole ,   Laboratório de educação (Brasil), Cardoso Beatriz ,   Laboratório de educação (Brasil)
Published: October 2021

Aprender a estudiar textos es un programa de innovación educativa que busca mejorar la enseñanza y el aprendizaje de contenidos disciplinares a partir de propuestas didácticas basadas en el análisis y el comentario del lenguaje de los textos. Este artículo presenta las bases del programa y un estudio piloto realizado con dos profesoras de 4º año de primaria que implementaron durante cuatro meses las propuestas del programa en clases de Historia. Los análisis incluyeron la comparación de las prácticas docentes en torno de la lectura de textos escolares de historia antes y después de conocer Aprender a estudiar textos y también la descripción del modo en que fueron cambiando las prácticas a lo largo de la intervención. Los resultados indican que, con la incorporación de las propuestas del programa, las profesoras pasaron a ofrecer más oportunidades a los alumnos para atender, recuperar, comentar y analizar el contenido informativo de los textos. La principal contribución del estudio consistió en ofrecer insumos para el diseño de un programa de formación permanente de docentes.
Lenguajes para el aprendizaje
Authors:   Pontificia Universidad Católica de Chile, Meneses A. Alejandra , Hugo R. Evelyn ,   Pontificia Universidad Católica de Chile, Uccelli Paola ,   Harvard Graduate School of Education
Published: October 2021

Con frecuencia se oponen las prácticas académicas a las vernáculas; sin embargo, desde una aproximación sociocultural y pragmática, se ha demostrado que el lenguaje se desarrolla a lo largo de la escolaridad a partir de la participación de los niños, niñas y jóvenes en diferentes contextos comunicativos permeables e interdependientes. Este número temático incluye nueve artículos que desarrollan relaciones entre lenguajes y aprendizajes –más allá de la dicotomía «dentro y fuera de la escuela»–. Desde diversas perspectivas teóricas y metodológicas, las investigaciones abordan los lenguajes situadamente, con énfasis en el registro, en el género discursivo o en el campo disciplinar. Algunos estudios destacan el aprendizaje del lenguaje verbal desde lo receptivo o lo productivo; otros, las interacciones entre modalidades y modos semióticos para la construcción de diversos géneros. Asimismo, los artículos conceptualizan el aprendizaje de maneras diferentes. Se argumenta que el desarrollo del lenguaje sirve de precursor y continúa como proceso evolutivo conjunto y crucial para el aprendizaje de la lectura y escritura. Algunos proponen que el conocimiento del lenguaje es un facilitador del aprendizaje, ya que subrayan el potencial epistémico de la lectura y escritura como herramienta de reflexión. También se amplía el estudio del aprendizaje más allá de la institución escolar, pues se investiga acerca de prácticas culturales en espacios digitales. Los estudios presentan resultados que aportan al campo del desarrollo del lenguaje y de su enseñanza, y tienen implicancias para la práctica pedagógica, ya que explicitan el rol de los lenguajes en la construcción de los aprendizajes, desde la valoración de la diversidad lingüística, contextual y cultural.
PDF PDF (English) HTML HTML (English) Vocabulario académico y habilidades de lenguaje académico: predictores de la comprensión lectora de estudiantes de primaria y secundaria en México
Authors:   Universidad Autónoma de San Luis Potosí (México), Romero-Contreras Silvia , Silva-Maceda Gabriela ,   Universidad Autónoma de San Luis Potosí (México), Snow Catherine Elizabeth ,   Harvard University (Estados Unidos)
Published: October 2021

Investigaciones previas han encontrado que las habilidades del lenguaje académico predicen positivamente los resultados de comprensión de lectura en español de los adolescentes hispanohablantes más allá del conocimiento del vocabulario académico. Este estudio examina la contribución específica del vocabulario académico y de las habilidades de lenguaje académico a la comprensión lectora de estudiantes de primaria y secundaria en el noreste de México. Participaron en el estudio un total de 1103 estudiantes de escuelas públicas de 5º y 6º de primaria (n=671) y de 1º y 2º de secundaria (n=432). Los participantes fueron evaluados en vocabulario académico, otras habilidades de lenguaje académico y comprensión lectora. Asimismo, se obtuvieron datos demográficos y de nivel socioeconómico. En convergencia con investigaciones anteriores realizadas con hablantes del inglés en EE.UU. y hablantes de español en Chile, los hallazgos revelaron que tanto el conocimiento del vocabulario académico como las habilidades del lenguaje académico son cruciales para la comprensión lectora. Nuestro estudio se suma a la creciente evidencia de las habilidades del lenguaje académico y de vocabulario académico como predictores clave de la comprensión lectora de los adolescentes hispanohablantes en América Latina y amplía la muestra a estudiantes mexicanos.
Intervenir en lengua oral y lengua escrita para mejorar las competencias académicas del alumnado de educación secundaria obligatoria
Authors:   Universitat de Barcelona (España), Resina Paula , Salas Naymé ,   Universitat de Barcelona (España)
Published: October 2021

La lengua oral y la lengua escrita están en constante relación en comunidades alfabetizadas. En este artículo se aborda cómo repercute la enseñanza del discurso argumentativo oral en el desarrollo del discurso argumentativo escrito, y viceversa. Los participantes fueron alumnos de 1º curso de educación secundaria, asignados aleatoriamente a una de tres condiciones: el grupo Oral-1 recibió una intervención en lengua oral primero y en lengua escrita después; el grupo Esc-1 recibió una intervención en lengua escrita primero, y en lengua oral después, y un grupo de control, que recibió las clases habituales de Lengua y Literatura Castellana. Se realizaron evaluaciones pretest, postest-1 y postest-2 para determinar la mejora en habilidades intramodalidad e intermodalidad. Los resultados indicaron que los efectos intramodalidad de la intervención en lengua escrita fueron más contundentes que los de la intervención en lengua oral. Ambas intervenciones produjeron efectos de intermodalidad. Se concluye que la enseñanza del discurso argumentativo debe tener en cuenta las relaciones entre ambas modalidades.
Analysis of the Competitiveness of Pond Cultivation Fisheries Production in West Java Province
Authors: Winda Sari Melda Nurul , Handaka Suryana Asep Agus , Rizal Achmad , Nurhayati Atikah
Published: October 2021

This study aims to analyze the competitiveness of aquaculture production in West Java Province. The research was carried out from August 2020 – September 2021. The method used was a literature study to determine the competitiveness of aquaculture in 27 districts/cities in West Java Province. After processing the data, the data will be analyzed descriptively. Primary data in the form of expert judgment consisting of 20 people regarding the proportion of competitiveness of aquaculture. Secondary data in statistical data on Pond Cultivation Fisheries 2004 – 2019 Department of Marine and Fisheries of West Java Province. The results of this study indicate that the competitiveness profile of aquaculture in 2019 in West Java Province with the first rank of very high competitiveness is occupied by Indramayu Regency, the second rank of very high competitiveness is occupied by Subang Regency, and Karawang Regency occupies the third rank of very high competitiveness.
The Theoretical Investigations and Molecular Dynamic Stimulation of Isoniazid as a Corrosion Inhibitor
Authors: Obolo O. E. , Oloruntoba D. T. , Borode J. O.
Published: October 2021

API5L Steel is known as one of the most useful materials on earth which is also subject to corrosion in certain environments. Many methods have been used to minimize its corrosion, but the use of inhibitors is widely accepted. The use of green inhibitors has gained wide usage because of their environmental friendliness. The theoretical investigations of isoniazid as corrosion inhibitor was carried out using Fourier transform infrared spectroscopy (FTIR), whereas theoretically, quantum chemical parameters and molecular dynamic simulations of the inhibitor were studied. The analyses of the experimental results showed that the expired drug (isoniazid) decreased the corrosion rate of API5L steel in a 0.5M H2SO4 medium. The inhibition efficiency decreased with a decrease in inhibitor concentration. FTIR results showed that the inhibition mechanism is physical through the functional groups present in the expired drug. Relying on quantum chemical parameters and molecular dynamic simulations results, the adsorption/binding strength of the concerned inhibitor molecule on API5L steel surface follows a good order. The computed adsorption/binding energy values (Eads) for the various isolated concentrations from the inhibitor indicate the adsorption process to be non-covalent (physiosorption) which is in good agreement with the literature.
Documentation of the Major Insect Pest of Cabbage and Their Associated Natural Enemies in Bihar, North-eastern India
Authors: Kumar Anil , Monobrullah Md. , Ranjan Kishor Deepak , Kumar Ritesh
Published: October 2021

The present investigation was conducted at farm of ICAR-Research Centre for Eastern Region (ICAR-RCER), Patna, Bihar during 2020-21.Geographically, ICAR-RCER, Patna is located at 25o35`30`` N latitude, 85o05`03`` E longitude, at an altitude 52m above mean sea level. The climate of the region is warm and temperate which is characterized by extremes of the temperature both during summer and winter. During summer, temperature may rise as high as 390C and in winter it may fall as low as 2-30C.The total annual average rain fall is 1130mm. This region provides a safe long growing season for most of the crops. Diamond back moth was found to be the most serious insect pest of cabbage. The infestation appeared during first week of January (SMW1) at vegetative stage and remained present up to the harvesting of the crop i.e. 11th SMW. Among the natural enemies, two species of coccinellids (Coccinella septempunctata, C. transversalis), one larval parasitoid (Cotesia plutellae) and one Syrphid fly (Toxomerus geminatus) and one unidentified spider was observed during crop period.
Socio-environmental Factors as Determinants of Emotional Well-being of Adolescents in Foster Homes in South-Western Nigeria
Authors: A. Oluwamotemi Christiana , E. Olajide Olumide , R. Edoni Elizabeth , Emma Ukoha Chidinma , L. Adelekan Ademola
Published: October 2021

Aims: The study explored the socio-environmental factors as determinants of the emotional well-being of adolescents in foster homes in southwestern Nigeria.

Study Design: A descriptive survey research of ex-post-facto type was employed.

Place and Duration of Study: Foster homes in six states in southwestern Nigeria. 

Methodology: multi-stage sampling was used in selecting 555 respondents for this study and the data collection was done using a semi-structured questionnaire and data analyzed using descriptive and inferential statistics.

Results: The study revealed that peer influence, academic performance and attitude of the foster family were significant to emotional wellbeing. All the components of social factors correlated with the emotional well-being of the fostered adolescents show that appropriate schooling and educational services can strengthen them and are more likely to view their schools as a supportive and safe haven. Therefore, peers, the foster family and the foster adolescents’ exposure to academics either directly or indirectly affects their emotional well-being. It also showed that the majority (54.1%) accepted that they can count on their carers to help them when the need arises. It is also revealed that the foster family attitude is an adolescent’s source of emotional support and their psychological well-being which may increase self-esteem in the fostered adolescents. This study revealed that 44.3% of the respondents confirmed that they always get along well with their carers.

Conclusion: Adolescents in foster care face multiple threats to their healthy development, including poor physical health, attachment disorders, compromised brain functioning, inadequate and emotional skills
A INCLUSÃO DA DIFERENÇA NAS POLÍTICAS PÚBLICAS DE ATENÇÃO À CRIANÇA DIAGNOSTICADA COM AUTISMO
Authors: Jerônimo Aline da Costa
Published: October 2021

O presente artigo tem como objetivo discutir aspectos relevantes das principais políticas públicas direcionadas aos autistas. Analisamos a lei Nº 12.764 e a “Linha de Cuidado para Atenção às Pessoas com Transtorno do Espectro do Autismo na Rede de Atenção Psicossocial” pautados na articulação com teoria psicanalítica e particularidades do trabalho no âmbito institucional, as quais convocam o analista a sustentar sua práxis e assumir um posicionamento ético e político frente às diretrizes de atenção e cuidado à criança diagnosticada com autismo favorável à inclusão da diferença.PALAVRAS-CHAVE: Psicanálise, autismo, políticas públicas, inclusão, instituição
JUST YOUR VOICE – A VOZ COMO MEDIADOR PRIVILEGIADO NA CLÍNICA COM BEBÊS EM RISCO PARA AUTISMO E NA CLÍNICA COM CRIANÇAS AUTISTAS
Authors: Catão Inês
Published: October 2021

A partir da noção psicanalítica de voz, da hipótese de que ela é o primeiro objeto em torno do qual se organiza o laço da criança com o Outro, e da hipótese de que a clínica do autismo testemunha uma dificuldade específica na constituição do circuito da pulsão invocante e do objeto voz, este artigo trata do manejo desta pulsão e da voz como mediadores privilegiados na clínica com bebês em risco para autismo e na clínica com crianças autistas.PALAVRAS-CHAVE: psicanálise, bebês, autismo, voz, pulsão invocante.
“ERA UMA VEZ...” CONSIDERAÇÕES PSICANALÍTICAS SOBRE A DEFICIÊNCIA E OS CONTOS DE FADAS
Authors: Ferreira Bossa Débora , Silva Neves Anamaria
Published: October 2021

Este estudo considera os conhecimentos produzidos pela psicanálise sobre os enigmas e conteúdos inconscientes presentes nos contos de fadas, em diálogo com os conceitos sobre o corpo da deficiência. Foi realizada a leitura e interpretação de três contos de fadas “A mulher que teve a criança trocada”, “Riquete do Topete” e “O patinho feio”, relacionando a vivência dos personagens com as fantasias que perpassam o corpo da deficiência. Conclui-se que as narrativas apresentaram movimentos de rejeição, mecanismos compensatórios e expulsão para lidar com as angústias e os estranhamentos que o corpo da deficiência mobiliza.PALAVRAS-CHAVE: contos de fadas; clínica; deficiência; infância; psicanálise
O REAL EM QUESTÃO: ENTRE A TEORIA DOS DISCURSOS E A HIPÓTESE COMUNISTA
Authors: Gonçalves Ferreira Isaias
Published: October 2021

O presente artigo pretende articular uma relação entre a psicanálise lacaniana e o marxismo de Badiou. Por um lado, buscou-se retomar os desenvolvimentos de Lacan sobre a teoria dos discursos para pensar uma saída possível da lógica capitalista (curto-circuito da mercadoria). Por outro lado, procurou-se reconstruir os argumentos que deram origem ao programa estabelecido por Badiou, denominado de Hipótese Comunista, tendo em vista, uma distinção entre o Real da política enquanto o antagonismo social da luta de classes e uma Política do real que aspira a produção do Acontecimento-Verdade como um advento criativo do real. Nesta perspectiva, se desenhou uma relação entre psicanálise e marxismo como discursos críticos do capital-parlamentarismo em seu eixo neoliberal. Com efeito, podemos pensar um ato, ao mesmo tempo analítico e político que não seja reduzido a uma forma de vida gerenciada pelo neoliberalismo.PALAVRAS-CHAVE: Psicanálise, hipótese comunista, teoria dos discursos, acontecimento, política do real.