2,114 research outputs found
In-season training load quantification of one-, two- and three-game week schedules in a top European professional soccer team
Top European soccer teams that play in UEFA competitions often participate in one, two- or three-games per week. Therefore, it is necessary to ensure optimal match-day performance and full recovery. The aim of this study was to quantify internal and external training load (TL) within five microcycles: M1 and M2 - one-game weeks; M3 and M4 - two-game weeks; M5 - three-game week). Thirteen elite soccer players participated in this study. A global positioning system (GPS) was used to measure the total distance covered and distances of different exercise training zones (1-5), the session ratings of perceived exertion (s-RPE) scores and the amount of creatine kinase (CK) created during daily training sessions for the 2015-2016 in-season period. The data were analysed with respect to the number of days prior to a given match. The main results indicate that there was a significant difference in training intensity for zone 1 between M2 and M4 (4010.2 ± 103.5 and 4507.6 ± 133.0 m, respectively); a significant difference in training intensity for zone 3 between M1 and M5 (686.1 ± 42.8 and 801.2 ± 61.2 m, respectively); a significant difference in the duration of the training sessions and matches between M2 and M5 (69.2 ± 2.1 and 79.6 ± 2.3) and M3 and M5 (69.7 ± 1.0 and 79.6 ± 2.3); and finally, there was a significant difference in CK between M3 and M2 (325.5 ± 155.0 and 194.4 ± 48.9). Moreover, there was a significant decrease in TL in the last day prior to a match, for all microcycles and all variables. There was no significant difference with respect to s-RPE. This study provides the first report of daily external and internal TLs and weekly accumulated load (training sessions and match demands) during one, two, and three-game week schedules in a group of elite soccer players. Expected significant differences are found in daily and accumulated loads for within- and between-game schedules. A similar pattern is exhibited for one- and two-game week microcycles regarding the day before the match, which exhibits a decrease in all variables. Despite the different number of games played per week, TL remain similar between microcycles for zone 2 and 5, plus s-RPE.This project was supported by the National Funds through FCT—Portuguese Foundation for Science and Technology (UID/DTP/04045/2013) and the European Fund for Regional Development (FEDER) allocated by European Union through the COMPETE 2020 Programme (POCI-01-0145-FEDER-006969)—competitiveness and internationalization (POCI). The authors disclose funding received for this work from any of the following organizations: National Institutes of Health (NIH); Welcome Trust; Howard Hughes Medical Institute (HHMI); and other(s).info:eu-repo/semantics/publishedVersio
Discrete scaling in non-integer dimensions
We explore the effect of a finite two-body energy in the discrete scale
symmetry regime of two heavy bosonic impurities immersed in a light bosonic
system. By means of the Born-Oppenheimer approximation in non-integer
dimensions , we discuss the effective potential of the heavy-particles
Schrodinger equation. We study how including the two-body energy in the
effective potential changes the light-particles wave function and the ratio
between successive Efimov states. We present the limit cycles associated with
correlation between the energy of successive levels for the three and four-body
systems. Our study is exemplified by considering a system composed of
-bosons, namely two Rubidium atoms interacting with Lithium ones
(LiRb), which represent compounds of current experimental
interest
Water sorption and solubility of different calcium hydroxide cements
OBJECTIVES: Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different calcium hydroxide cements, in order to show alterations that may reduce their effectiveness. MATERIAL AND METHODS: Five discs (20 mm in diameter and 1.5 mm thick) of three different materials (Biocal®, Dycal® and Hidro C®) were prepared with the aid of a ring-shaped metallic matrix. After being stored at 37ºC for 24 h, the discs were weighed on a precision weight scale, dehydrated and weighed again. Immediately after weighing, discs were stored for a week in 50 mL of distilled water at 37ºC and, then, weighed again, dehydrated and submitted to a new weighing. The loss of soluble material and its water sorption was obtained from the difference between the initial and the final dry mass of each disc, after 1 week of immersion in water. Data were analyzed for significant differences by two-way ANOVA and Tukey's test (p<0.05). RESULTS: Mean water sorption values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal® (0.006 ± 0.001 / 2.15); Dycal® (0.016 ± 0.004 / 5.49); and Hidro C® (0.025 ± 0.003 / 8.27). Mean solubility values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal® (0.002 ± 0.001 / 0.72); Dycal® (0.013 ± 0.004 / 4.21); and Hidro C® (0.023 ± 0.004 / 7.65). CONCLUSIONS: Biocal® absorbed less water and was less soluble than the other evaluated cements; Hidro C® exhibited the highest water sorption and solubility values; and there were significant differences among all evaluated experimental groups
Water sorption and solubility of different calcium hydroxide cements
OBJECTIVES: Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different calcium hydroxide cements, in order to show alterations that may reduce their effectiveness. MATERIAL AND METHODS: Five discs (20 mm in diameter and 1.5 mm thick) of three different materials (Biocal®, Dycal® and Hidro C®) were prepared with the aid of a ring-shaped metallic matrix. After being stored at 37ºC for 24 h, the discs were weighed on a precision weight scale, dehydrated and weighed again. Immediately after weighing, discs were stored for a week in 50 mL of distilled water at 37ºC and, then, weighed again, dehydrated and submitted to a new weighing. The loss of soluble material and its water sorption was obtained from the difference between the initial and the final dry mass of each disc, after 1 week of immersion in water. Data were analyzed for significant differences by two-way ANOVA and Tukey's test (
A formação de professores/pedagogos e as práticas inclusivas: o dilema do aluno surdo e a (não) inserção de libras no cotidiano escolar / The training of teachers/pedagogues and the inclusive practices: the dilemma of the deaf student and the (non) insertion of libras in the school routine
O presente artigo tem como objetivo apresentar e discutir a importância da inserção da Língua Brasileira de Sinais - Libras no contexto do processo de formação do professor com vistas a formar um profissional capacitado e comprometido com a real inserção dos alunos surdos no cotidiano da escola. Num momento em que as questões sociais cada vez mais permeiam o chão da escola, se faz necessário abrir os olhos, não só para o contexto de uma nova era nas instituições de ensino, que começam a abrir espaço para a inserção dos alunos surdos, mas sobretudo, o quão necessário e urgente é o diálogo acerca da inclusão educacional e garantia de permanência do aluno surdo, dentro de todo o processo de aprendizagem no cotidiano escolar. Este trabalho se configura através da apresentação de registros históricos e de maneira breve, desde a regulamentação da educação especial como possibilidade de acesso ao aluno, bem como a Libras neste processo especificamente voltada ao atendimento do aluno surdo, e de transcrições de entrevistas com profissionais inseridos no cotidiano escolar, relatos de suas experiências ou não com a Libras, para embasar e fomentar a discussão, afim de que possamos compreender estes processos na prática, apresentando os reais desafios do docente na atualidade. Dessa maneira, podemos repensar a formação do professor frente a estes novos desafios, questionando a necessidade ou não de uma reformulação nos parâmetros da formação, afim de garantir o ingresso de profissionais realmente capacitados ao mercado de trabalho para atuar em defesa e garantia do aluno surdo frente as demandas que lhe são de direito em termos de educação
Um Jogo Sério em 3D para Apoiar a Aprendizagem Sensível ao Contexto dos Estudantes
Este artigo descreve o desenvolvimento de um jogo de aprendizagem ubíqua capaz de simular uma universidade virtual para dispositivos móveis, bem como desktops. No caso dos dispositivos móveis, o jogo sério é capaz de perceber a localização do usuário e identificar em qual ambiente o usuário se encontra, para, posteriormente, recomendar desafios relacionados àquela localidade ou área de estudo. O usuário também aprenderá diversos conceitos de disciplinas ao interagir com avatares presentes no ambiente virtual. O ambiente virtual também conta com desafios que utilizam realidade aumentada para que o jogador assimile melhor os conceitos aprendidos em sala de aula através de aplicações do mundo real
Tratamento cirúrgico da Incontinência Urinária de Esforço com o minisling OPHIRA – um estudo piloto
Desenho do estudo: Transversal. Objetivos: Avaliar a eficácia do minisling Ophyra ™ em mulheres com incontinência urinária de esforço (IUE). Métodos: Estudo prospectivo, observacional, que abrangeu 13 pacientes que realizaram cirurgia de minisling entre 2010 e 2011. As seguintes variáveis foram analisadas: idade, taxa subjetiva de sucesso (cura e /ou melhora), complicações cirúrgicas imediatas e tardias. Os parâmetros de qualidade de vida (King’s Health Questionnaire - KHQ) foram analisados antes e depois de um ano de cirurgia. Resultados: Treze (3/13) por cento das mulheres recidivaram a IUE, com 87,5% de sucesso subjetivo depois de um ano de seguimento. Depois de 12 meses de seguimento, as mulheres foram consideradas subjetivamente curadas em todos os domínios dos questionários de qualidade de vida KHQ, exceto por relações pessoais e domínio de sono/energia. Quatro pacientes tiveram sintomas irritativos depois da cirurgia e duas pacientes com retenção urinária crônica. Conclusão: O minisling Ophira foi efetivo para melhorar a IUE e promover melhor qualidade de vida em mulheres com IUE. Maior amostragem é necessária para posteriormente comparar essas pacientes com mulheres que foram submetidas a técnicas retropúbicas clássicas.Design of the study: Cross-sectional. Objectives: To evaluate the efficacy of minisling (Ophyra ™) in women with stress urinary incontinence (SUI). Methods: A prospective, observational study comprised 13 patients who underwent minisling surgery from 2010 to 2011. It was analyzed the following variables: age, subjective success rate (cure and/or improvement), immediate and late surgical complications. Quality of life (QoL) parameters (King’s Health Questionnaire - KHQ) were analyzed before and after one year of surgery. Results: Thirteen per cent (3/13) of women had their SUI relapsed, with 87.5% of subjective success after one year of follow-up. After 12 months of follow-up, women who were considered subjectively cured had improvement in all domains of KHQ QoL scores, except for personal relationships and sleep/energy domains. Four patients had irritative symptoms after surgery and two patients evolved with chronic urinary retention. Conclusion: Minisling Ophira was effective to improve SUI and to promote better QoL on women with SUI. A larger sampling is needed to further compare these patients with women who underwent to classic retropubic techniques
Aventura espacial: a serious game of adaptive interface for children and young people with autistic spectrum disorder
Este artigo apresenta o desenvolvimento e a aplicação de um jogo sério de interface adaptativa para crianças e jovens com transtorno do espectro autista, chamado de Aventura Espacial. A construção do jogo decorre de estudos sobre o autismo e de uma experiência direta de interação com jovens autistas, em um ambiente equipado com jogos informáticos. A pesquisa busca responder à questão sobre como desenvolver um jogo que interage com as condutas recorrentes de sujeitos autistas no contexto da saúde mental. Através do perfil dos jovens e de suas experiências ao jogarem, o jogo Aventura Espacial possibilita que a interface e os desafios se modifiquem, de modo a atender as necessidades dos jogadores. Pudemos compreender que, ao convidar o jogador para uma experiência de interação social com os outros e com as circunstâncias do meio, o jogo, projetado a partir de uma ontologia que acompanhou as ações dos jovens autistas participantes, favorece que os jogadores exercitem as diferentes formas de funcionamento da atenção com os desafios e sugestões que oferece, ao mesmo tempo em que possibilita ao profissional da saúde mental acompanhar o percurso de sua realização por cada sujeito.This paper presents the development and application of a serious adaptive interface game for children and young people with autism spectrum disorder called Space Adventure. The construction of the game stems from studies on autism, and from a direct experience of interacting with young autism in an environment equipped with computer games. The research answers the question about how to develop a game that interacts with recurrent actions of autistic individuals in the context of mental health. Through the profile of young people and playing experiences, the Space Adventure game enables the interface and challenges to change to meet the needs of the players. We could understand that by inviting the player to social experience with others, the game favors the players to exercise the different ways of playing. The serious game was designed from an ontology that contemplates the actions of young autistic participants. Attention to the challenges and suggestions it offers, while allowing the mental health professional to follow the path of its accomplishment by each subject.Facultad de Informátic
Hybrid computational model to assist in the location of victims buried in the tragedy of Brumadinho
The rupture of dams in Brazil has caused great concern due to the environmental disaster and the loss of lives. The use of algorithms and computational models to assist search teams in locating victims when buried by tailings is essential but scarce. Those that exist are mainly slow, as they involve high computational costs. In this sense, in the context of the Brumadinho tragedy in 2019, this study aimed to develop a hybrid computational model to assist the search teams in locating victims buried by the tailings. The methodology for designing this model was based on regression techniques, machine learning, and physicomathematical algorithms. Firstly, the study resulted in a physicomathematical model based on integral and vector calculus and concepts of fluid mechanics, which provided results to assist in locating bodies buried by the tailings. More recently, based on data provided by the physicomathematical algorithm, two hybrid models have been developed. One uses statistical regression, and the other uses support vector regression, a type of machine learning. It is expected that a more accurate model can be used in other possible situations of disruption in future studies. Also, it is possible to apply the model developed in situations involving computational fluid dynamics in general.This paper presents a hybrid computational model based on regression techniques, machine learning and physicomathematical algorithms developed for assistance in locating victims in the Brumadinho tragedy in 2019. The physicomathematical model, which provided results to help search teams, is based on integral and vector calculus, and fluid mechanics concepts. In addition, from data provided by the physicomathematical algorithm, two hybrid model were developed. One of them uses regression statistical and the other one uses support vector regression which is a type of machine learning. With good prospects of the advances in research, it is expected in future work, a more accurate model that can be used in other possible situations of dam-break. Moreover the model can be applied to situations involving computational fluid dynamics in genera
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