bluuebunny/crossref_metadata_2025_split huggingface dataset:
Upper-Body Strength Measures and Pop-Up Performance of Stronger and Weaker Surfers
Authors: Parsonage Joanna , Secomb Josh L. , Sheppard Jeremy M. , Ferrier Brendon K. , Dowse Rebecca A. , Nimphius Sophia 
Published: December 2017

Abstract
Parsonage, J, Secomb, JL, Sheppard, JM, Ferrier, BK, Dowse, RA, and Nimphius, S. Upper-body strength measures and pop-up performance of stronger and weaker surfers. J Strength Cond Res 34(10): 2982–2989, 2020—The primary purpose of this study was to investigate the reliability of the isometric push-up (IPU), dynamic push-up (DPU), and force plate pop-up (FP POP) as measures of upper-body isometric and dynamic strength qualities in surfing athletes. Furthermore, the study aimed to compare pop-up performance between stronger and weaker surfers. Eighteen female (n = 9) and male (n = 9) surfers (age = 28.1 ± 6.4 years, mass = 69.6 ± 10.4 kg, and height = 172.5 ± 6.7 cm) completed a battery of upper-body strength assessments, of which exhibited high between-day reliability: IPU, (coefficient of variation [CV%] = 4.7, intraclass correlation coefficient [ICC] = 0.96), DPU (CV% = 5.0, ICC = 0.90), and FP POP (CV% = 4.4, ICC = 0.90). Participants were subsequently split into stronger (n = 9) and weaker (n = 9) surfers based on normalized peak force (PF) attained in the IPU. Pop-up performance was measured both in the water and during the FP POP and was referred to as time to pop-up (TTP). Significant between-group differences were observed for normalized PF during IPU (d = 1.59, p < 0.01) and DPU (d = 0.94 p = 0.04). Although not significant, there was a large magnitude difference in FP POP (d = 0.80, p = 0.08) and FP TTP (d = 0.85, p = 0.07). Significant correlations were identified between normalized IPU PF and normalized DPU FP (r = 0.69, p = 0.03) and FP TTP (r = 0.73, p = 0.02) in the stronger group. The weaker group exhibited a significant inverse correlation between normalized IPU PF and in-water TTP (r = −0.77, p < 0.01). The results suggest improvements in pop-up performance may be elicited by improving dynamic strength for stronger surfers, whereas pop-up performance in weaker surfers may be elicited by improving maximum strength. The upper-body strength assessments provided a novel insight into strength qualities that are associated with in-water performance of surfers (TTP).
Force-Time Characteristics of the Countermovement Jump: Analyzing the Curve in Excel
Authors: Chavda Shyam , Bromley Tom , Jarvis Paul , Williams Steve , Bishop Chris , Turner Anthony N. , Lake Jason P. , Mundy Peter D. 
Published: December 2017

ABSTRACT
INCREASED POPULARITY IN THE UTILIZATION OF FORCE PLATES TO MEASURE COUNTERMOVEMENT JUMPS (CMJS) FOR PERFORMANCE MONITORING WARRANTS THE NEED FOR STRENGTH AND CONDITIONING COACHES AND SPORT SCIENTISTS TO BETTER UNDERSTAND ITS FORCE-TIME CHARACTERISTICS AND THE CALCULATION OF ITS ASSOCIATED VARIABLES. THIS ARTICLE AIMS TO PROVIDE INFORMATION ON HOW TO UNDERSTAND AND ANALYZE THE FORCE-TIME CURVE OF CMJS IN MICROSOFT EXCEL, THUS PROVIDING PRACTITIONERS AN INEXPENSIVE AND ACCESSIBLE ALTERNATIVE TO READILY AVAILABLE SOFTWARE ON THE MARKET.
Effects of Injection Molding and Storage Conditions on Polypropylene Copolymer
Authors: Kalkan-Sevinc Zehra S. , Ling Michael T. K. 
Published: December 2017

Abstract
This work focused on studying the effects of injection molding parameters (cooling time and melt temperature) and storage conditions (annealing versus cooling) on the thermal, mechanical, and optical properties of an ethylene-propylene copolymer made with and without nucleating agents. Preform properties (optical, crystallinity) affect the consistency of the preforms’ reheating via infrared lamps before stretch blow molding. The analysis of detailed preform properties as a result of both injection molding processing and postmolding treatment or preform storage conditions was lacking to correlate with the blow molding performance. This study confirmed that postmolding aging is a significant factor that affects material properties and therefore suggested subsequent blow molding. It also suggested that shorter injection molding cooling time helps to minimize the effects of aging and storage conditions. As expected, with the inclusion of the nucleating agent, clarity, yield strength, and density of the material improved.
PROGRAMA MINAS RURAL E ATER: ANÁLISE DA EXTENSÃO RURAL MIDIATIZADA
Authors: Leal Daniela , Da Silva Lopes Ivonete 
Published: December 2017

Este artigo procura entender como o programa Minas Rural, produzido pela Empresa de Assistência Técnica e Extensão Rural do Estado de Minas Gerais (Emater), representa a prática extensionista e, também, os valores que podem estar imbricados na difusão dos resultados da extensão rural. Foram analisados os conteúdos do programa Minas Rural veiculados nos meses de agosto e setembro de 2016 e os enquadramentos adotados nas reportagens sobre os resultados dos serviços de ATER prestados pela Emater-MG. Como resultado, percebe-se que o Minas Rural ratifica a imagem de um meio rural pouco homogêneo, estruturado em bases econômicas e do agronegócio
The Effect of Social Skills through Role-play on the Self-concept of Students with and without ADHD
Authors: Shirazi Malihe , Zarnaghash Maryam , Dashti Alireza 
Published: December 2017

The aim of the present research is to find out the effect of role-playing on total self-concept score of students suffering from ADHD (attention-deficit hyperactivity disorder). Participants of this study were 120 children divided into two groups of 60. The first group included ADHD children, and the second group were normal children. The participants in the second group were randomly selected among the students of a primary school. The research instruments were ADHD Questionnaire (Tavakoli, 1380), Piers-Harris Children's Self-Concept, and Scale Role-playing scenarios & Clinical interview. The data gathered through the questionnaires were analyzed by the t-test. This is the indicator of a positive effect of role-playing on selfconcept of the students with or without ADHD.
Keywords: role-playing; self-concept; ADHD;
The Individual and Familial Risk Factors of the Adolescents Exposed to Sexual Revictimization: The First Data from Turkey*
Authors: Yurtay Nilufer 
Published: December 2017

Childhood sexual abuse (SA) is an important problem worldwide. There are many studies concerning the individual and familial risk factors for SA. However, in literature it is emphasized that there is a need for studies on the risk factors concerning sexual revictimization (SR). Because there is no study on the possible risk factors of SR in Turkey, the aim of this study is to determine whether there are meaningful differences between the possible individual and familial risk factors of individuals who have been exposed to SR and individuals who have not been exposed to SR. A total of 210 parents of adolescent girls participated in the study, 70 of them with daughters who have experienced SR, 70 of them with daughters who experienced SA once, and 70 of them with daughters who have not experienced SA. In order to collect data, a Family Information Form developed by the researchers was used. In the analysis of data, Chi Square tests and Holm’s Sequential Bonferroni Method were employed. As a result of analyses, it was determined that adolescents who have experienced SR have more alcohol consumption in their family compared to the adolescents who have experienced SA once and the adolescents in the control group. It was also determined that these adolescents experience physical abuse in the hands of their fathers, that they have problems with their parents about curfew hours and boyfriends, that they have a negative circle of friends, that they consume alcohol and perform self-mutilative behaviors, that they skip classes and have a low academic success level. In addition to these, it was determined that compared to the comparison group, the adolescents with SR as well as the adolescents who have experienced SA once have parents with lower education levels, that they experience more family problems recently, and that their mothers are physically abused. With this study on SR, which is the first of its kind in Turkey, it was determined that victims experience various individual and familial problems and that their parents need psychosocial support. The results were discussed under the light of literature, and suggestions were made.
Keywords: child; adolescent; sexual revictimization; risk factors;
On contractivity preserving 4- to 7-step predictor-corrector HBO series for ODEs
Authors: Nguyen-Ba Truong , Giordano Thierry , Nguyen-Thu Huong , Vaillancourt Remi 
Published: December 2017

The contractivity-preserving 2- and 3-step predictor-corrector series methods for ODEs (T. Nguyen-Ba, A. Alzahrani, T. Giordano and R. Vaillancourt, On contractivity-preserving 2- and 3-step predictor-corrector series for ODEs, J. Mod. Methods Numer. Math. 8:1-2 (2017), pp. 17--39. doi:10.20454/jmmnm.2017.1130) are expanded into new optimal, contractivity-preserving (CP), d-derivative, k-step, predictor-corrector, Hermite- Birkhoff--Obrechkoff series methods, denoted by HBO(d,k,p), k=4,5,6,7, with nonnegative coefficients for solving nonstiff first-order initial value problems \(y'=f(t,y)\), \(y(t_0)=y_0\). The main reason for considering this class of formulae is to obtain a set of methods which have larger regions of stability and generally higher upper bound \(p_u\) of order \(p\) of HBO(d,k,p) for a given d. Their stability regions have generally a good shape and grow generally with decreasing \(p-d\). A selected CP HBO method: 6-derivative 4-step HBO of order 14, denoted by HBO(6,4,14) which has maximum order 14 based on the CP conditions compares satisfactorily with Adams--Cowell of order 13 in PECE mode, denoted by AC(13), in solving standard N-body problems over an interval of 1000 periods on the basis of the relative error of energy as a function of the CPU time. HBO(6,4,14) also compares well with AC(13) in solving standard N-body problems on the basis of the growth of relative positional error, relative energy error and 10000 periods of integration. The coefficients of HBO(6,4,14) are listed in the appendix.
A Social Work Approach to Policy: Implications for Population Health
Authors: Miller Daniel P. , Bazzi Angela R. , Allen Heidi L. , Martinson Melissa L. , Salas-Wright Christopher P. , Jantz Kathryn , Crevi Katherine , Rosenbloom David L. 
Published: December 2017

The substantial disparities in health and poorer outcomes in the United States relative to peer nations suggest the need to refocus health policy. Through direct contact with the most vulnerable segments of the population, social workers have developed an approach to policy that recognizes the importance of the social environment, the value of social relationships, and the significance of value-driven policymaking. This approach could be used to reorient health, health care, and social policies. Accordingly, social workers can be allies to public health professionals in efforts to eliminate disparities and improve population health.
The effect of 8 weeks deep-aquatic exercises on static balance and lower body strength among elderly men
Authors: Seyed jafari Ehsan , Sahebozamani Mansour , Beyranvand Ramin , Ebrahimipour Ehsan , Razavi Mahbobeh 
Published: December 2017

Back ground: The purpose of this study was to investigate the effect of deep aquatic exercises on lower body strength and balance among elderly men.
Methods: Thirty elderly men over 65 years old were randomly divided into two equal groups including experimental and control groups. Experimental group participated in a deep aquatic exercise program that consisted of 60-minute sessions three times a week for 8 weeks while control group had no plan of exercise. Muscle strength and balance was assessed before and after the program as pre and post-test by HHD (Hand-Held Dynamometer) and BBS (Biodex Balance System) respectively. Repeated measures two-way analysis of variance (ANOVA) was performed on outcome variables.(p≥0.05).
Results: deep aquatic exercises promoted significant increases in the elderly men's muscle strength and balance, as assessed using HHD (p< 0.001) and the BBS (p< 0.001).
Conclusion: The present deep-aquatic exercise training for the elderly are able to improve the muscle strength and static balance.
The Value of Home Education Including Physical Education
Authors: Ahrabi-Fard Iradge 
Published: December 2017

There is a false notion that public school can educate great students. Facing diversity of students’ potential, different timing of growth pattern and varieties of home preparation of students to be a assiduous learner it is serious challenging task. Schools offer a general education to all with some attention to the diversity of students. It is home education, dealing with concentration habits during learning process, valuing educational process and respecting the rules of group learning that are influential in acquiring most from the educational opportunities. School is not able to go against the home culture and re-educate students to behave as a concern and diligent learner if these habits are not emphasized or supported at home. Public education in US is ranked between 18 to 22 in the world (according to different sources). Comparing with the world, American schools as the whole rank first for school structures, are number one for allocation of school budget, the emphasis and requirements of teacher education is number one. America expenditure per student exceed the top ten of the world combined. It is the lack of home education of learning demeanor and respecting the learning process that causes the inferiority.
Physical education faces the same general dilemma at school having a very diverse group of students within variety of growth stages, potentials, sizes and capabilities based on their previous experiences. Decent general physical education at school can only offer a limited advancement. It is the responsibilities of parents to learn about the specifics of healthy growth and suitable skill development for their unique child. It is their parental task to act responsibly for the healthy growth of their child concerning: bone density and health, muscular strength, size and endurance, heart development to endure the stress of activities and function well, the range of motion of joints and finally their weight management. All the above detailed items of children healthy growth present requirement for suitable activities to the development of skill learning. Suitably of activities matching the specification of child’s growth is crucial to their development. Expecting school with so many diverse population attend single child’s needs and direct the program to address them is an undue expectation.
Home education make a difference in academic progress and proper physical growth and development of children. Being healthy and living healthy is a behavioral development to address potentials that can only be learned at home and may be strengthened at school, not the other way around.
El Islam soñado: la fe ahmadía
Authors: Ortega Sánchez José María 
Published: December 2017

A pesar del escaso número de sus fieles, la fe ahmadía destaca por la presencia pública y apoyo político que logra en Occidente, ello se debe a algunas de sus características -como la defensa de la libertad religiosa o la firme condena del terrorismo- que hacen de esta secta islámica un islam soñado; este artículo investiga sus orígenes y mensaje, para saber hasta qué punto este islam soñado en realidad lo es.
Tipos de ovócitos obtidos de folículos em diferentes estágios de desenvolvimento provenientes de ovários de bovinos em matadouros
Authors: Lima Fabrizia Portes Cury 
Published: December 2017

Com o objetivo de avaliar a incidência de diferentes tipos morfológicos de ovócitos bovinos, foram colhidos ovários (n=200) de animais em matadouro. Os folículos foram aspirados e os ovócitos classificados segundo a camada de células do cumulus. A aspiração dos folículos foi feita manualmente, com agulha 25x7 e seringa de 5mL, e os ovócitos obtidos foram classificados com o auxílio de um estereomicroscópio. O diâmetro dos folículos e dos corpos lúteos também foi medido. A técnica de aspiração utilizada se mostrou satisfatória, no entanto, houve diminuição nas taxas de recuperação dos ovócitos. Na análise das estruturas, do total de 3428 folículos, foram recuperados 1884 ovócitos, os quais foram classificados da seguinte forma: cumulus compacto e denso, com mais de três camadas de células do cumulus envolvendo totalmente a zona pelúcida (48,41%); até três camadas de células do cumulus envolvendo totalmente a zona pelúcida (23,03%); ovócitos possuindo áreas da zona pelúcida totalmente desprovidas de células (14,33%); e desnudos ou totalmente desprovidos de células do cumulus (14,23%).
Percepção da qualidade de vida de mulheres idosas praticantes e não praticantes de atividade física
Authors: Faria Patrícia Maria de , Valadares Ywia Danielle 
Published: December 2017

Com o aumento da expectativa de vida, estudos com populações idosas vêm despertando o interesse de pesquisadores. A relação entre atividade física, qualidade de vida e envelhecimento vem sendo cada vez mais discutida e analisada cientificamente. Evidências demonstram que há um efeito positivo de um estilo de vida ativo na prevenção e minimização das perdas decorrentes do processo de envelhecimento. O presente estudo teve como objetivo comparar a percepção da qualidade de vida entre idosas praticantes e não praticantes de atividades físicas em quatro PSF’s, no município de Formiga-­MG. Participaram deste estudo 42 idosas com idade entre 60 e 75 anos, divididas em dois grupos de 21, sendo um de ativas e outro de sedentárias. Para avaliar a percepção da QV, utilizou­se o questionário PSN. O teste t foi usado para comparar a percepção da QV das idosas ativas e sedentárias e o teste de Pearson correlacionou o nível socioeconômico com a QV. Em relação à idade dos indivíduos, não houve diferença significativa entre os dois grupos (p>0,05). A maioria das mulheres 55% pertencia à classe econômica D. Em relação à pontuação do questionário PSN houve diferença estatisticamente significante entre os grupos, apresentando p igual a 0,009. A média de pontuação total no PSN, foi maior no grupo de mulheres sedentárias ±8,24, consequentemente obtendo uma pior percepção da QV, comparado ao grupo de mulheres ativas que obtiveram média de ±10,67. Conclui­se que o grupo ativas, teve melhor percepção da QV, quando comparado com o grupo sedentárias.
Estimativa de chuvas intensas para o oeste de Minas Gerais e o entorno do reservatório da usina hidrelétrica de Furnas
Authors: Machado Marco Aurélio De Mello , Silva Eder David Borges da 
Published: December 2017

Uma precipitação intensa é definida como a chuva cuja intensidade ultrapassa determinado valor em uma dada distribuição espacial e temporal. As variações das chuvas intensas ao longo do espaço geográfico e ao longo do tempo representam um dos principais estudos hidrológicos com aplicações na conservação dos solos e na engenharia de construção e de drenagem. Para uma correta utilização desses dados, faz­se necessário conhecer as relações existentes entre as quatro características fundamentais de uma chuva: intensidade, duração, freqüência e distribuição especialmente agora, quando se projetam cenários de mudanças climáticas, relativas à freqüência e intensidade de eventos extremos. Neste trabalho foram estimadas as equações de chuvas intensas ou as relações intensidade­duração­frequência (i­d­f) para localidades do oeste do estado de Minas Gerais e do entorno do lago do reservatório da Usina Hidrelétrica de Furnas. Foram selecionadas 44 localidades, compreendidas entre 20°00 e 21°25 ́ de latitudes Sul e entre 45°00 ́ a 46°25 ́ de longitudes Oeste. Foi empregada a metodologia do inverso das potências da distância entre as localidades o que permitiu estimar, para cada uma, os parâmetros da equação i­d­f, bem como as chuvas intensas máximas médias (de 5 a 60 minutos), em função de períodos de retorno de 2 a 10.000 anos. Tais estimativas precisam, posteriormente, ser checadas com dados pluviográficos observados, para a verificação do grau de acurácia do método aqui empregado. Contudo, os resultados demonstraram grande potencial de aplicação em áreas da engenharia, bem como em práticas de conservação dos solos e águas.
A química medicinal, as reações químicas e os efeitos provocados por medicamentos em caso de dengue
Authors: Almeida Alex Magalhães de , Oliveira Maria Eliza de 
Published: December 2017

A química medicinal objetiva descobrir novos compostos adequados ao tratamento de enfermidades e doenças. Desta forma, faz­se necessário aplicar métodos e testes à substância, para que seja utilizada como fármaco. Os fármacos devem ser utilizados de forma racional, conforme prescrição médica, pois, o uso indevido pode causar danos à saúde do indivíduo, como é o caso da dengue. O medicamento mais utilizado e indicado no tratamento de dengue é o paracetamol, contudo, existem outros medicamentos que podem ou não ser utilizados como dipirona e ácido acetilsalicílico. Neste trabalho, pretende­se analisar quais as reações químicas causadas no organismo por medicamentos contra­indicados no tratamento da dengue. A natureza deste é puramente qualitativa, baseando­se em referenciais bibliográficos e entrevistas realizadas com médicos do Hospital Municipal Santa Marta da cidade de São Roque de Minas ­ MG. Os resultados obtidos foram analisados sob a ótica da química quanto às reações, considerando­se as possibilidades clínicas.
Uma abordagem ao problema de sequenciamento em uma máquina com penalidades por antecipação e atraso da produção por meio de algoritmos evolutivos
Authors: Ramos Renato Da Silva , Oliveira Fernando Bernardes de 
Published: December 2017

O problema de sequenciamento em uma máquina com penalidades por antecipação e atraso da produção (PSUMAA), objeto de estudo deste artigo, baseado em um trabalho monográfico, faz parte dos problemas de programação da produção. Esse tipo de problema é amplamente aplicável em empresas que trabalham com produção sob encomenda e que sempre necessitam se adaptar às atividades executadas durante o processo produtivo das necessidades dos clientes. Para o problema abordado, considerou­se como restrição as datas para entrega da produção e tempo de preparação da máquina dependente da sequência. É proposto o desenvolvimento de um algoritmo evolutivo com características híbridas para solucionar este problema. Os resultados obtidos pelo algoritmo proposto são comparados com o que foi atingido pelo algoritmo genético clássico, bem como com a literatura. Para o algoritmo evolutivo híbrido, foram implementados três operadores de cruzamento (LOX, OX de 1 ponto e OX de 2 pontos), sendo que o operador OX de 2 pontos apresentou melhor desempenho em relação aos demais. Em comparação ao algoritmo genético clássico, houve considerável melhora nos resultados encontrados pelo algoritmo evolutivo híbrido desenvolvido, atingindo melhora superior a 74% para alguns casos de teste. Em relação à literatura, os resultados obtidos apresentaram melhora superior a 25% para os casos de teste com 20 e 25 tarefas, considerando 10.000 gerações para o algoritmo evolutivo.