60 research outputs found

    Psychological evaluation in golf: the athlete’s adaptation in stress situations

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    O objetivo desta pesquisa foi estudar o processo de adaptação de golfistas às situações de estresse competitivo. Trinta e um atletas de golfe brasileiros, todos membros de algum clube de golfe no Estado de São Paulo, e pertencentes à Federação Paulista de Golfe, participaram desse estudo descritivo. O instrumento foi o guia de Entrevista de Avaliação Psicológica de Atletas: Gestão de Stress (EAPA-GS), seguindo o modelo Transacional Cognitivo, Motivacional e Relacional de Lazarus aos contextos esportivos. Os resultados foram apresentados de acordo com as faixas de rendimento esportivo. Assim, os principais fatores de estresse no grupo chamado de bem-sucedidos se relacionaram com erros técnicos, com os atletas tendendo a usar estratégias de enfrentamento focadas na resolução do problema. Também foi registrado um significativo número de reações emocionais negativas.The aim of the current study was to investigate golfers’ processes of adapting to a competitive stress. Thirty-one Brazilian golfers, all members of a golf club in São Paulo State, and belonging at “Federação Paulista de Golfe”, participated in this descriptive study with data analysis based on the Lazarus’ CognitiveMotivational-Relational Theory. The results were presented according to the sports performance ranges. Thus, the main stressors in the so-called successful group were related to the technical errors, with athletes tending to use coping strategies focused on solving the problem. In addition, a significant number of negative emotional reactions to stress were observed

    Improving Students’ Social Participation in Primary and Secondary Schools Across Europe

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    This handbook is the product of collaboration within the “FRIEND-SHIP—Improving Students’ Social Participation in Primary and Secondary Schools Across Europe” Project, funded by the European Commission—Erasmus+ Programme, Project No.: 2019-1-AT01-KA201-05 1226. One of the main outputs of this Project consisted of the development of the FRIEND-SHIP Program, a school-based intervention aimed at improving social participation of all students between 8 and 11 years of age. The FRIEND-SHIP Program is intended to be implemented by teachers and consists of 12 sessions, each with the duration of 45–60 minutes, implemented twice a week over six weeks. The activities that comprise this program are essentially experiential. Students are invited to take an active and involved role by participating in group activities, role-playing, social stories, arts, and physical activities. The main purpose of this handbook is to support teachers in implementing the FRIEND-SHIP program with their classes. This handbook is divided in three parts: • CHAPTERS 1, 2 and 3 cover background information about social participation and inclusion, as well as the description of the target audience of this handbook and the digital tool for evaluating the FRIEND-SHIP Program effects. • CHAPTER 4 covers the FRIEND-SHIP Intervention Program, including guiding principles, aims, and detailed descriptions of sessions. • CHAPTER 5 covers the information gathered with the implementation of the FRIEND-SHIP Intervention Program throughout the Project life.This handbook is the product of collaboration within the “FRIEND-SHIP—Improving Students’ Social Participation in Primary and Secondary Schools Across Europe” Project, funded by the European Commission—Erasmus+ Programme, Project No.: 2019-1-AT01-KA201-05 1226.info:eu-repo/semantics/publishedVersio

    Improving Students’ Social Participation in Primary and Secondary Schools Across Europe

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    INTRODUÇÃO Este manual é o produto da colaboração desenvolvida no âmbito do projeto "FRIEND-SHIP – Improving Students’ Social Participation in Primary and Secondary Schools across Europe", financiado pela Comissão Europeia – Programa Erasmus+, Referência: 2019-1-AT01-KA201-05 1226. Um dos principais resultados deste projeto consistiu no desenvolvimento do Programa FRIEND-SHIP, uma intervenção escolar cujo objetivo é aumentar a participação social de todos os alunos entre os 8 e os 11 anos. O Programa FRIEND-SHIP destina-se a ser implementado por professores e consiste em 12 sessões, cada uma com a duração de 45-60 minutos, implementadas duas vezes por semana, ao longo de seis semanas. As atividades que compõem este programa são essencialmente experimentais. Os alunos são convidados a envolverem-se e a assumirem um papel ativo, participando em atividades de grupo, dramatizações, histórias sociais, atividades físicas e atividades relacionadas com as artes. O principal objetivo deste manual é apoiar os professores na implementação do Programa FRIEND-SHIP com as suas turmas.Projeto financiado pela Comissão Europeia – Programa Erasmus+, Referência: 2019-1-AT01-KA201-05 1226info:eu-repo/semantics/publishedVersio

    Prenatal THC exposure produces a hyperdopaminergic phenotype rescued by pregnenolone

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    The increased legal availability of cannabis has led to a common misconception that it is a safe natural remedy for, among others, pregnancy-related ailments such as morning sickness. Emerging clinical evidence, however, indicates that prenatal cannabis exposure (PCE) predisposes offspring to various neuropsychiatric disorders linked to aberrant dopaminergic function. Yet, our knowledge of how cannabis exposure affects the maturation of this neuromodulatory system remains limited. Here, we show that male, but not female, offspring of Δ9-tetrahydrocannabinol (THC)-exposed dams, a rat PCE model, exhibit extensive molecular and synaptic changes in dopaminergic neurons of the ventral tegmental area, including altered excitatory-to-inhibitory balance and switched polarity of long-term synaptic plasticity. The resulting hyperdopaminergic state leads to increased behavioral sensitivity to acute THC exposure during pre-adolescence. The neurosteroid pregnenolone, a US Food and Drug Administration (FDA) approved drug, rescues synaptic defects and normalizes dopaminergic activity and behavior in PCE offspring, thus suggesting a therapeutic approach for offspring exposed to cannabis during pregnancy

    Search for large missing transverse momentum in association with one top-quark in proton-proton collisions at √s = 13 TeV with the ATLAS detector

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    This paper describes a search for events with one top-quark and large missing transverse momentum in the final state. Data collected during 2015 and 2016 by the ATLAS experiment from 13 TeV proton–proton collisions at the LHC corresponding to an integrated luminosity of 36.1 fb−1 are used. Two channels are considered, depending on the leptonic or the hadronic decays of the W boson from the top quark. The obtained results are interpreted in the context of simplified models for dark-matter production and for the single production of a vector-like T quark. In the absence of significant deviations from the Standard Model background expectation, 95% confidence-level upper limits on the corresponding production cross-sections are obtained and these limits are translated into constraints on the parameter space of the models considered

    Search for large missing transverse momentum in association with one top-quark in proton-proton collisions at s√=13 TeV with the ATLAS detector

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    This paper describes a search for events with one top-quark and large missing transverse momentum in the final state. Data collected during 2015 and 2016 by the ATLAS experiment from 13 TeV proton–proton collisions at the LHC corresponding to an integrated luminosity of 36.1 fb−1 are used. Two channels are considered, depending on the leptonic or the hadronic decays of the W boson from the top quark. The obtained results are interpreted in the context of simplified models for dark-matter production and for the single production of a vector-like T quark. In the absence of significant deviations from the Standard Model background expectation, 95% confidence-level upper limits on the corresponding production cross-sections are obtained and these limits are translated into constraints on the parameter space of the models considered

    Etude des dimensions moleculaires des polymeres dissous dans des melanges binaires de solvants polaires et non polaires-I. Polyvinyl-2 pyridine

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    We have studied the molecular dimensions of poly-2-vinylpyridine in solution in binary solvent mixtures consisting of a non polar and a polar component, viz. benzene-ethanol and benzene-chloroform. We have also studied the preferential solvation of the same polymer in the above mixtures using light scattering. We have observed a conformational transition of P2VP taking place in a composition region for each solvent mixture. This transition shows as a discontinuity in the unperturbed dimensions, in the long range interactions parameter and in the parameter of preferential solvation of the polymer. We think that this transition is related to the existence of two ordered structures of the polymer chain, one stable before and the other after the transition region. © 1974

    Influence de la solvatation preferentielle sur les dimensions des polymeres en solution dans des melanges de solvants

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    We have studied the dependence of the intrinsic viscosity number of polymers on the composition of binary solvents. The systems studied are: polystyrene in CCl4/CH3OH, C6H6/CH3OH and C6H6/heptane and poly-2-vinylpyridine in CHCl3/CH3CH2OH. We have also studied, for the same systems, preferential solvation of the polymers, using light scattering. We have observed that, near the θ point, short polystyrene chains exhibit a higher expansion than long chains. This was explained in terms of the dependence of preferential solvation on molecular weight. For the system poly-2-vinylpyridine/CH3CH2OH/CHCl3, we have established the viscosity increment dependence on solvent composition. The curve describing this increment differs markedly from the theoretical curve based on GE values (excess free energy) of the solvent mixture. However, taking into consideration the process of preferential solvation, the experimental curve can be corrected and becomes very similar in shape to the theoretical curve but there still remains a quantitative difference between the two curves. © 1973

    Isentropic compressibilities of (amide + water) mixtures: A comparative study

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    The density and ultrasonic velocity of aqueous solutions of formamide (FA), N-methylformamide (NMF), N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMA), pyrrolidin-2-one (PYR), N-methyl-2-pyrrolidinone (NMP), and their pure phases have been measured at 298.15 K and atmospheric pressure. Densities and ultrasonic velocities in pure amides have been also measured at the temperature range 288.15 K to 308.15 K for the computation of their thermal expansivities. Isentropic compressibility, intermolecular free length, relative association, apparent molar compressibility, as well as the excess quantities, ultrasonic velocity, isentropic compressibility, intermolecular free length, have been evaluated and fitted to the Redlich-Kister type equation. The deviation from ideal mixing law in ultrasonic velocity is positive while the deviations in isentropic compressibility and intermolecular free length are negative for all (amide + water) mixtures. This behavior reveals the nature and the magnitude of intermolecular interactions between the amide-water molecules. The sequence of superimposed curves of various ultrasonic parameters vs. the amide mole fraction is related to the strength of interactions between the unlike molecules and the role of -CH3 substitution in amides. The comparison of ultrasonic to volumetric properties reveals differences on the position of the extrema and their relation with the degree of substitution while the interpretation of these differences is discussed. Two different approaches on the computation of excess functions, applied in this work, brought out a difference in the magnitude of deviations and a partial reversion to the sequence of amides curves suggesting a different estimation in terms of deviations from ideal mixing law and therefore of the relative molecular interactions. © 2007 Elsevier Ltd. All rights reserved

    Pharmacological aspects and potential new clinical applications of ketamine: Reevaluation of an old drug

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    Ketamine, the phencyclidine derivative described in 1965, is an intravenous anesthetic with a variety of applications. The enthusiasm following its initial release subsided due to side effects from the central nervous system. New anesthetics limited the role of ketamine in anesthetic practice. However, its hemodynamically stable profile, along with its beneficial respiratory properties and analgesic potency, rendered the drug invaluable in battlefield medicine, sedation of the uncooperative child, analgesia, and sedation in burn units. Reevaluation, though, of analgesic properties of ketamine resulted in new interest regarding its use in perioperative and chronic pain management. Moreover, recent studies in the effects of the substance on intracranial pressure and cerebral blood flow led to revising the recommendation against its use in brain injury. Furthermore, the bronchodilating effects of the substance led to increasing interest for potential use in asthma treatment. In addition, separation of the 2 enantiomers and subsequent separate studies indicated beneficial results of the S(+) one. Thus, new controlled multicentered clinical trials are to be conducted to justify approval for new uses of ketamine and take advantage of its unique range of applications. © 2009 the American College of Clinical Pharmacology
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