bluuebunny/crossref_metadata_2025_split huggingface dataset:
“Brachilenos” e outros casos: a imigração brasileira a Santiago (Chile) por razões de afetividade
Authors: Lima Iuri Pieroni de 
Published: July 2020

Esta pesquisa tem como finalidade explorar e descrever aspectos da imigração brasileira para Santiago do Chile a partir da década de 1970 até a atualidade. Dentro das análises disponíveis sobre o fenômeno migratório, o recorte dado é com imigrantes que possuem laços parentais ou tenham relações afetivas estáveis com cidadãos chilenos. O objetivo é entender as características desse tipo de migração por meio do relato das experiências dos próprios sujeitos migrantes, na perspectiva de dar voz às suas problemáticas. São incorporados na análise também casos de descendentes de brasileiros que foram perseguidos e presos pela ditadura militar chilena. A pesquisa é qualitativa, com método bola de neve, com observação participante e entrevistas no modelo de relato de vida. No desenvolvimento teórico é apresentada revisão de literatura dos estudos migratórios abordando temas como identidades nacionais, feminização das migrações e discriminação racial.
Inatividade física no deslocamento para a escola e fatores associados em adolescentes de uma cidade do Sul do Brasil
Authors: Pinto André De Araújo , Silva Diego Augusto Santos , Silva Kelly Samara , Felden Érico Pereira Gomes , Pelegrini Andreia 
Published: July 2020

O objetivo deste estudo foi estimar a prevalência de inatividade física no deslocamento para a escola e identificar os fatores associados em adolescentes de uma cidade do Sul do Brasil. Estudo epidemiológico, conduzido em 1.029 adolescentes de 15 a 19 anos, de escolas públicas estaduais da cidade de São José-SC. Um questionário foi aplicado com intuito de obter as informações referentes à variável dependente, deslocamento passivo para a escola (carro/moto, ônibus) e as variáveis independentes, sendo as características sociodemográficas (sexo, faixa etária e renda familiar mensal), atividade física e tempo gasto no deslocamento. A massa corporal e a estatura foram mensuradas para a determinação do status do peso por meio do IMC. Empregou-se a regressão logística binária, estimando-se a razão de Odss (RO) para identificar a associação entre a variável dependente e as demais variáveis. A prevalênciade deslocamento passivo entre os adolescentes foi de 52%. Os rapazes mais velhos (17-19 anos), os adolescentes de famílias com maior renda familiar mensal (> 5 salários), àqueles que não atenderam as recomendações de atividade física e os que gastaram maior tempo no deslocamento (≥ 20 minutos para os rapazes e ≥ 10 minutos para as moças) apresentaram mais chances de se deslocarem passivamente para a escola. Mais da metade dos adolescentes se deslocam de maneira passiva no trajeto casa-escola. Os grupos mais expostos ao deslocamento passivo são os rapazes mais velhos, os adolescentes com maior renda familiar, que não atendem às recomendações mundiais de atividade física e despendem maior tempo no deslocamento.
Experiências avaliativas dos estudantes de Educação Física
Authors: Frossard Matheus Lima , Stieg Ronildo , Ferreira Neto Amarílio , Santos Wagner Dos 
Published: July 2020

Este artigo objetiva analisar o modo como estudantes finalistas dos cursos de licenciatura em Educação Física de sete Universidades Federais brasileiras compreendem os processos avaliativos, tendo em vista sua atuação docente em momentos extracurriculares. Caracteriza-se como uma pesquisa quali-quantitativa, dialogando com 32 alunos. Utiliza, como fontes, questionário, grupo focal e entrevista individual. O cruzamento dos dados entre os questionários e as narrativas dos estudantes demonstrou como, o que e para que esses sujeitos têm avaliado em suas aulas. Assim, eles apresentam uma diversidade de possibilidades de materialização dos diferentes saberes trabalhados nas aulas em um saber-objeto, o que os auxilia na produção de um juízo de valor e tomada de decisão.
Construção e validação de um instrumento de suporte escolar e parental na formação esportiva do adolescente
Authors: Santos Erasmo Braz , Aburachid Layla Maria Campos , Coelho-Ravagnani Christianne De Faria , Ravagnani Fabricio Cesar de Paula 
Published: July 2020

Objetivou-se construir e validar um questionário para verificar a contribuição da escola e da família na formação esportiva do adolescente. Participaram da pesquisa 295 adolescentes praticantes de esportes coletivos e individuais. Foram realizadas as seguintes etapas para validação do instrumento: validação teórica, que consistiu na construção do instrumento e na aplicação do questionário piloto; e validação empírico analítica, que consistiu na aplicação do questionário, verificação da confiabilidade, verificação da adequabilidade, aplicação da análise fatorial exploratória e na modelagem final do questionário. As análises de confiabilidade, adequabilidade e fatorial exploratória realizadas para identificar evidênciasde validade de construto do questionário apresentaram ajustes aceitáveis e resultados que atenderam as recomendações da literatura. O modelo final do questionário abarcou 21 itens dos 39 anteriores analisados e foram distribuídos em duas dimensões: Escola com nove itens divididos em fatores denominados de (1) desenvolvimento esportivo (itens 1, 2, 3, 5 e 6) e (2) desempenho escolar com (itens 7, 8, 11 e 12); e Família com 12 itens divididos em fatores denominados de (1) aspectos financeiros (itens 1, 2 e 3), (2) aspectos motivacionais (itens 11, 12 e 13), (3) interação esportiva (7, 8 e 9) e (4) acompanhamento esportivo (itens 16, 19 e 21). Conclui-se que o questionário apresentou níveis satisfatórios de fidedignidadee consistência interna com evidências de validade de construto para verificação do apoio que a escola e família concentram na formação esportiva do adolescente.
Análise cinemática dos membros superiores em atletas de Rugby em cadeira de rodas:
Authors: Oliveira Alexsandro Da Silva , Ramirez Diego , Batista Luiz Alberto , Vigário Patrícia Dos Santos , Silva Julio Guilherme 
Published: July 2020

O objetivo do presente estudo foi identificar o comportamento cinemático dos membros superiores (MMSS) de atletas de Rugby em Cadeira de Rodas (RCR) durante a tarefa de propulsão na cadeira de rodas. Neste estudo seccional foi realizada uma análise cinemática bidimensional dos MMSS de 19 atletas de RCR (idade = 31,5 ± 5,6), durante o teste de velocidade de 20 metros (VEL). Foram considerados os seguintes parâmetros: ângulos articulares, classe funcional e o questionário Wheelchair User’s Shoulder Pain Index (WUSPI). A análise dos dados foi realizada com extração de valor de tendência central (média) e valor de dispersão (desvio padrão). As correlações foram verificadas pelo coeficiente de correlação de Spearman e Pearson. As variáveis cinemáticas analisadas estão descritas a seguir: ângulo de impulsão (89,7° ± 18,9), impulsão inicial (31° ± 10,4), impulsão final (66° ± 9,6), ângulo de contato (97,1° ± 3,8), flexão de cotovelo (94,2° ± 13,3), extensão de ombro (66,6° ± 10,6), VEL (7,7s± 2,3) e ciclos de propulsão (16,1 ± 1,4). Foi observado uma correlação significativa entre a Classificação Funcional (CF) e o VEL (rho = -0,70, p < 0,05), assim como entre o tempo de prática de RCR com o VEL (rho = 0,54, p < 0,05). No que diz respeito à identificação do grau de função dos MMSS, os atletas apresentaram boa funcionalidade com uma pontuação média no WUSPI de 17,8 ± 8 pontos. Os atletas de RCR apresentaram um padrão cinemático com poucas variações espaço-temporais. Entretanto, foi possível observar que alguns atletas tiveram melhor desempenho no teste de velocidade, principalmente os atletas com maior tempo de prática de RCR e com CF mais alta.
O efeito de um programa multiesportivo adaptado sobre a qualidade de vida de dependentes de crack em tratamento:
Authors: Magalhães Filipe Pitágoras Rodrigues , Souza Mariana Ferreira de , Alves Terezinha Abel , Carvalho Ferdinando De Oliveira , Moraes José Fernando Vila Nova de 
Published: July 2020

A Pictorial Scale of Perceived Competence and Social Acceptance (PSPCSA) é uma escala utilizada para identificar as auto-percepções de competência (cognitiva e física) e aceitação social (pares e maternas) de crianças na educação infantil e primeiros anos do ensino fundamental I. O objetivo deste estudo foi traduzir e investigar a validade de conteúdo, critério, constructo e a fidedignidade da PSPCSA para crianças brasileiras. A tradução transcultural foi utilizada, e o processo de validação foi conduzido envolvendo 33 profissionais e 667 crianças (4 a 7 anos); 159 dessas crianças responderam a PSPCSA em dois momentos. Com base nos resultados pode-se inferir que houve clareza de linguagem e pertinência das questões, elevada consistência interna (valores > 96) e fidedignidade teste-reteste (valores de r > 0,60). A PSPCSA apresentou ajustada adesão das questões com as correspondentes dimensões e sub-escalas e índices satisfatórios de validade fatorial confirmatória (Non-normed Fit Index, Comparative Fit Index e Tucker and Lewis´s Index of Fit com valores >0,81). As versões brasileiras da PSPCSA apresentam indicadores de validade para o uso com crianças brasileiras.
Evaluation of ECMWF Radiation Scheme Using Aircraft Observations of Spectral Irradiance above Clouds
Authors: Wolf Kevin , Ehrlich André , Mech Mario , Hogan Robin J. , Wendisch Manfred 
Published: July 2020

AbstractA novel approach to compare airborne observations of solar spectral irradiances measured above clouds with along-track radiative transfer simulations (RTS) is presented. The irradiance measurements were obtained with the Spectral Modular Airborne Radiation Measurement System (SMART) installed on the High Altitude and Long Range Research Aircraft (HALO). The RTS were conducted using the operational ecRad radiation scheme of the Integrated Forecast System (IFS), operated by the European Centre for Medium-Range Weather Forecasts (ECMWF), and a stand-alone radiative transfer solver, the library for Radiative transfer (libRadtran). Profiles of observed and simulated radar reflectivity were provided by the HALO Microwave Package (HAMP) and the Passive and Active Microwave Transfer Model (PAMTRA), respectively. The comparison aims to investigate the capability of the two models to reproduce the observed radiation field. By analyzing spectral irradiances above clouds, different ice cloud optical parameterizations in the models were evaluated. Simulated and observed radar reflectivity fields allowed the vertical representation of the clouds modeled by the IFS to be evaluated, and enabled errors in the IFS analysis data (IFS AD) and the observations to be separated. The investigation of a North Atlantic low pressure system showed that the RTS, in combination with the IFS AD, generally reproduced the observed radiation field. For heterogeneously distributed liquid water clouds, an underestimation of upward irradiance by up to 27% was found. Simulations of ice-topped clouds, using a specific ice optics parameterization, indicated a systematic underestimation of broadband cloud-top albedo, suggesting major deficiencies in the ice optics parameterization between 1242 and 1941 nm wavelength.
Effect of Tranexamic Acid on Wound Complications and Blood Loss in Total Ankle Arthroplasty
Authors: Steinmetz R. Garrett , Luick Laura , Tkach Shaun , Falcon Spencer , Stoner Julie , Hollabaugh Kimberly , Ringus Vytautas , Haleem Amgad M. 
Published: July 2020

Background: Tranexamic acid (TXA) is a medication that has been shown to decrease blood loss and risk of blood transfusion in total knee and total hip arthroplasty. The purpose of this study was to evaluate the use of TXA in patients undergoing total ankle arthroplasty (TAA). We hypothesized there would be less blood loss and wound complications in patients receiving TXA. Methods: A retrospective review of 2 patient cohorts operated on by 2 surgeons was performed from 2010 to 2018. We compared a group of TAA patients that did not receive TXA vs a subsequent group that received TXA. Patients received 1g intravenous TXA before the tourniquet was inflated followed by another 1 g after release of the tourniquet. Intraoperative blood loss was recorded and preoperative hemoglobin and hematocrit levels were compared to postoperative levels. Intraoperative and postoperative complications were compared between the 2 groups. A total of 119 patients were included in the study, of whom 55 received TXA. No significant difference existed between the 2 groups in gender, age, body mass index, or Charlson comorbidity index. Results: There was no difference in estimated blood loss, postoperative hemoglobin/hematocrit values or preoperative to postoperative change in hemoglobin/hematocrit values. Additionally, there was no difference in wound complications or overall complication rate between the groups. Conclusion: TXA has been shown to be effective in total knee and total hip arthroplasty in decreasing blood loss and transfusion risk. We did not find it to be effective in reducing intraoperative blood loss, perioperative blood loss, or wound complications in TAA. Level of Evidence: Level III, comparative study.
D-dimer as an indicator of prognosis in SARS-CoV-2 infection: a systematic review
Authors: Vidali Sofia , Morosetti Daniele , Cossu Elsa , Luisi Maria Luisa Eliana , Pancani Silvia , Semeraro Vittorio , Consales Guglielmo 
Published: July 2020

BackgroundSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stimulates pro-thrombotic changes. This, combined with its tropism for endothelium and lung structures, may explain its association with thrombotic events, reduction of pulmonary gas exchange, acute respiratory distress syndrome (ARDS) and a composite end-point (intensive care unit, invasive ventilation, death). This study aims to highlight the correlation between elevated D-dimer (an indirect thrombosis marker) and the increased rate of poor prognosis-associated conditions, and to introduce D-dimer-labelled anticoagulant administration as a potentially useful tool to prevent complications and positively influence coronavirus disease 2019 (COVID-19) course.MethodsAn online database search (PubMed, Google Scholar, Scopus, Web of Science and Cochrane) was performed between 13 March and 10 April 2020. The most relevant keywords were “D-dimer”, “SARS-CoV-2”, “COVID-19”, “thrombosis” and “ARDS”. Selection was independently conducted by three reviewers. References and previews of accepted articles were evaluated. Data inclusion/extraction inaccuracy was limited by the work of three reviewers. Selection bias reduction was addressed by thoughtfully designing the search protocol. Quality assessment was performed with the Newcastle–Ottawa Scale. The systematic review protocol was not registered because we anticipated the very limited available evidence on the topic and due to the urgency of the study.Results16 studies were evaluated. Good-quality criteria were reached in 13 out of 16 studies. D-dimer was increased and significantly higher in COVID-19 patients compared with healthy controls, in COVID-19 patients with severe disease or a composite end-point compared with non-severe disease, in ARDS compared with non-ARDS patients and in deceased ARDS patients compared with ARDS patients who survived (all p<0.001). COVID-19 patients treated with anticoagulants demonstrated lower mortality compared with those not treated (p=0.017).ConclusionsCorrelations exist between COVID-19 infection, severe elevation of D-dimer levels, and increase in the rate of complications and composite end-point. The appropriateness of early and continuous D-dimer monitoring and labelled anticoagulation as management tools for COVID-19 disease deserves accurate investigation, to prevent complications and reduce interventions.
A Comparative Study of Fractional Order Models on State of Charge Estimation for Lithium Ion Batteries
Authors: Tian Jinpeng , Xiong Rui , Shen Weixiang , Wang Ju 
Published: July 2020

AbstractState of charge (SOC) estimation for lithium ion batteries plays a critical role in battery management systems for electric vehicles. Battery fractional order models (FOMs) which come from frequency-domain modelling have provided a distinct insight into SOC estimation. In this article, we compare five state-of-the-art FOMs in terms of SOC estimation. To this end, firstly, characterisation tests on lithium ion batteries are conducted, and the experimental results are used to identify FOM parameters. Parameter identification results show that increasing the complexity of FOMs cannot always improve accuracy. The model R(RQ)W shows superior identification accuracy than the other four FOMs. Secondly, the SOC estimation based on a fractional order unscented Kalman filter is conducted to compare model accuracy and computational burden under different profiles, memory lengths, ambient temperatures, cells and voltage/current drifts. The evaluation results reveal that the SOC estimation accuracy does not necessarily positively correlate to the complexity of FOMs. Although more complex models can have better robustness against temperature variation, R(RQ), the simplest FOM, can overall provide satisfactory accuracy. Validation results on different cells demonstrate the generalisation ability of FOMs, and R(RQ) outperforms other models. Moreover, R(RQ) shows better robustness against truncation error and can maintain high accuracy even under the occurrence of current or voltage sensor drift.
Binder-Free Electrode based on Electrospun-Fiber for Li Ion Batteries via a Simple Rolling Formation
Authors: Kang Yuqiong , Deng Changjian , Liu Xinyi , Liang Zheng , Li Tao , Hu Quan , Zhao Yun 
Published: July 2020

AbstractWith the demand for higher energy density and smaller size lithium-ion batteries (LIBs), the development of high specific capacity active materials and the reduction of the usage of inactive materials are the main directions. Herein, a universal method is developed for binder-free electrodes for excellent stable LIBs by rolling the electrospun membrane directly onto the commercial current collector. The rolling process only makes the fiber web denser without changing the fiber structure, and the fiber web still maintains a porous structure. This strategy significantly improves the structural stability of the membrane compared to the direct carbonized electrospun membrane. Moreover, this method is suitable for a variety of polymerizable adhesive polymers, and each polymer can be composited with different polymers, inorganic salts, etc. The electrode prepared by this method can be stably cycled for more than 2000 cycles at a current density of 2500 mA g−1. This study provides a cost-effective and versatile strategy to design the LIB electrode with high energy density and stability for experimental research and practical application.
The effect of FDI on low and high-skilled employment and wages in Mexico: a study for the manufacture and service sectors
Authors: Saucedo Eduardo , Ozuna Teofilo , Zamora Hector 
Published: July 2020

AbstractThis study analyzes the effect of Foreign Direct Investment (FDI) inflows on the employment and wages of low- and high-skilled employees in the manufacture and service sectors in Mexico. The study implements a quarterly panel dataset covering the 32 Mexican states from 2005 to 2018. The econometric model is estimated throughout Fixed-Effects (FE) and Panel Corrected Standard Errors (PCSE). Employment results indicate that an increase of FDI inflows into the manufacture sector creates a positive effect in low- and high-skilled employment. In the case of service sector, results are inconclusive across models for both categories of employment. In the case of wages, it is found that FDI inflows by the manufacture sector increase marginally in low-skilled wages and no statistical effect is captured in high-skilled wages. Lastly, in service sector, results indicate the effect of FDI inflows are inconclusive in the case of low-skilled and high-skilled wages.
Phytohormone up-regulates the biochemical constituent, exopolysaccharide and nitrogen metabolism in paddy-field cyanobacteria exposed to chromium stress
Authors: Tiwari Sanjesh , Patel Anuradha , Prasad Sheo Mohan 
Published: July 2020

Abstract
Background
Cyanobacteria are well known for their inherent ability to serve as atmospheric nitrogen fixers and as bio-fertilizers; however, increased contaminants in aquatic ecosystem significantly decline the growth and function of these microbes in paddy fields. Plant growth regulators play beneficial role in combating the negative effects induced by heavy metals in photoautotroph. Current study evaluates the potential role of indole acetic acid (IAA; 290 nm) and kinetin (KN; 10 nm) on growth, nitrogen metabolism and biochemical constituents of two paddy field cyanobacteria Nostoc muscorum ATCC 27893 and Anabaena sp. PCC 7120 exposed to two concentrations of chromium (CrVI; 100 μM and 150 μM).

Results
Both the tested doses of CrVI declined the growth, ratio of chlorophyll a to carotenoids (Chl a/Car), contents of phycobiliproteins; phycocyanin (PC), allophycocyanin (APC), and phycoerythrin (PE), protein and carbohydrate associated with decrease in the inorganic nitrogen (nitrate; NO3— and nitrite; NO2—) uptake rate that results in the decrease in nitrate and ammonia assimilating enzymes; nitrate reductase (NR), nitrite reductase (NiR), glutamine synthetase (GS), glutamate synthase (GOGAT) except glutamate dehydrogenase (GDH). However, exogenous supplementation of IAA and KN exhibited alleviating effects on growth, nitrogen metabolism and exopolysaccharide (EPS) (first protective barrier against metal toxicity) contents in both the cyanobacteria, which probably occurred as a result of a substantial decrease in the Cr uptake that lowers the damaging effects.

Conclusion
Overall result of the present study signifies affirmative role of the phytohormone in minimizing the toxic effects induced by chromium by stimulating the growth of cyanobacteria thereby enhancing its ability as bio-fertilizer that improved fertility and productivity of soil even in metal contaminated condition.
Right atrial function assessed by volume-derived values and speckle tracking echocardiography in patients with hypertrophic cardiomyopathy
Authors: Huang Jun , Yang Chao , Ni Cai-Fang , Yan Zi-Ning , Fan Li , Song Xiang-Ting 
Published: July 2020

Abstract
Background
To detect the right atrial (RA) functions in hypertrophic cardiomyopathy (HCM) patients by using volume-derived values and two-dimensional strain.

Methods
Thirty-two HCM patients and 34 age and gender matched normal controls were enrolled for this study. RA volume-derived values were measured by using 2D ultrasonic images. RA strain (S-reservoir, S-conduit, S-booster pump) and strain rate (SR-reservoir, SR-conduit, SR-booster pump), representing the reservoir, conduit and booster pump functions, respectively, were measured by EchoPAC.

Results
Total RA emptying fraction (RAEF) and RA expansion index in HCM patients were significantly lower than normal controls (p < 0.05). The values of S-reservoir, S-conduit, Sr-reservoir and Sr-conduit in HCM patients were significantly lower than normal controls (p < 0.001). Although there were no significant differences in S-booster pump and Sr-booster pump between HCM patients and normal controls, the absolute values in HCM patients were lower than normal controls.

Conclusions
In this study, we concluded that RA dysfunctions, including the reservoir and conduit functions were impaired in HCM patients.