272 research outputs found

    Reproducibility of an endurance test for master swimmers

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    This study aimed to verify the reproducibility of an endurance test for master swimmers. Methods: Seventeen male swimmers, aged from 30 to 50 years (35.06 ± 5.36), weight (78.71 ± 13.06 kg), height (174.35 ± 0.07 cm), participated in this study. The participants underwent the Progressive Swim Test (PSwT), which corresponds to swimming progressively to exhaustion in a 25-meter pool, guided by the recording of sound signals indicating the swimming rhythm. We verified the following variables: heart rate before the test (BHR) and right after the end of the test (AHR), followed by the rate of perceived exertion (RPE) and a total of laps performed (SN - swimming number). For comparison between the three days of tests, the one-way repeated measures ANOVA with Tukey's Post-Hoc was performed. Relative reproducibility was performed by the r test and the intraclass correlation coefficient (ICC). Absolute reproducibility was determined using the coefficient of variation (CV) and the confidence interval (CI). Results: The results showed high reproducibility in (PSwT) in master swimmers in the analyzed variables of intergroup and intragroup with relative reproducibility of r > 0.60 and ICC > 0.70 and absolute reproducibility with CI 95% (lower −1.10 and upper 0.99) and CV < 10%. Most of the cases were within the limits of agreement of the Bland-Altman tests, all variables were considered a level of significance with (p <0.05). Conclusion: The Progressive Swim Test (PSwT) is a reproducible instrument in the assessment of endurance in master swimmersThis study was supported by The Coordination for the Improvement of Higher Education Personnel (CAPES). The participants who enrolled in this study and the Laboratory for the Assessment of Aquatic Performance.info:eu-repo/semantics/publishedVersio

    Uma utopia brasileira: Vargas e a construção do estado de bem-estar numa sociedade estruturalmente desigual

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    Trabajo, empleo, calificaciones profesionales, relaciones de trabajo e identidades laborales. Vol. I

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    CLACSO ha apoyado desde sus inicios la constituciĂłn y desarrollo de grupos de reflexiĂłn centrados en la problemĂĄtica del mundo del trabajo. Los temas abordados sucesivamente han sido el empleo y el desempleo, los movimientos laborales, las relaciones de trabajo, las condiciones y medio ambiente de trabajo. Las reuniones y seminarios se han desarrollado en las principales ciudades del continente: MĂ©xico DF, La Habana, MedellĂ­n, Santiago de Chile, RĂ­o de Janeiro, San Pablo, Buenos Aires y Montevideo. Los objetivos son facilitar los encuentros, el debate y las acciones de cooperaciĂłn entre los especialistas mas reconocidos y con los jĂłvenes investigadores, becarios, maestrandos y doctorandos y nutrir una comunidad muy diversa, y pluralista de cientĂ­ficos sociales que no han cesado de crecer. Los grupos han reunido a destacados especialistas de la casi totalidad de paĂ­ses de la regiĂłn, con una composiciĂłn multidisciplinaria y pluralista que abarca a sociĂłlogos del trabajo y de la educaciĂłn, cientistas polĂ­ticos, economĂ­stas del trabajo y del desarrollo, abogados laboralistas y psicĂłlogos del trabajo, entre otras. Sus estudios han dado lugar a numerosas publicaciones editadas por CLACSO, la UAM, el PREALC de la OIT, el CEIL PIETTE del CONICET y Trabajo y Sociedad de Argentina, y forman parte de las bibliografĂ­as de aquellas disciplinas. Desde 2007 se constituyĂł el actual grupo "Trabajo, empleo, calificaciones profesionales, relaciones de trabajo e identidades laborales" con sede en la UNAM, sede Iztapalapa y en el CEIL-PIETTE del CONICET. Los dos volĂșmenes que ofrecemos a la comunidad acadĂ©mica y a los actores sociales contienen la mayorĂ­a de las ponencias presentadas en el Seminario de Buenos Aires, realizado en noviembre de 2007.INDICE PresentaciĂłn del Grupo de Trabajo: Trabajo, empleo, calificaciones profesionales, relaciones de trabajo e identidades laborales Julio CĂ©sar Neffa y Enrique de la Garza Toledo 11 PresentaciĂłn de la obra: Nuevos y viejos escenarios en el mundo laboral latinoamericano: distintas miradas para su estudio Leticia Muñiz Terra 15 Primera parte Dimensiones teĂłricas y metodolĂłgicas Diez tesis sobre el trabajo del presente (y el futuro del trabajo) Ricardo Antunes 29 Aportes a una teorĂ­a del cambio: gubernamentalidad, fuerzas productivas y praxis de sujetos colectivos en nueva Ă©poca Alberto L. Bialakowsky, MarĂ­a Ignacia Costa y M. Mercedes Patrouilleau 45 um ensaio sobre inĂ©rcia social Adalberto Cardoso 83 Hacia un concepto ampliado de trabajo Enrique de la Garza Toledo 111 Comentarios: Del trabajo esclavo a las nuevas formas de esclavitud en el trabajo Irene Vasilachis de Gialdino 141 Segunda parte Trabajo, identidad y subjetividad Cuando el trabajo informal es espacio para la construcciĂłn de identificaciones colectivas. Un estudio sobre ferias comerciales urbanas Mariana Busso 159 ConstrucciĂłn del sujeto de trabajo en la condiciĂłn de precariedad Karina Arellano, Diego Baccarelli, Cecilia Dallacia, LucĂ­a De Gennaro, Soraya Giradles y Emilio Sadier 193 Comentarios: Comentarios crĂ­ticos de las ponencias presentadas en la Mesa Trabajo, identidad y subjetividad Juan Montes CatĂł 203 Tercera parte EducaciĂłn, calificaciĂłn profesional, productividad y salarios Fuentes de la valorizaciĂłn del capital: la relaciĂłn entre productividad y salarios. Argentina 1993-2006 Javier Lindenboim, Juan M. Graña y DamiĂĄn Kennedy 215 Demandas empresariales en las estrategias de formaciĂłn de los ingenieros en dos zonas argentinas Marta Panaia 243 Saberes, intervenciones profesionales y clasificaciones profesionales: nuevos requerimientos a idĂłneos, tĂ©cnicos e ingenieros Julio Testa; Claudia Figari y MartĂ­n Spinosa 275 Pautas de desigualdad en el mundo social productivo uruguayo. Aportes para el debate en torno a la gestiĂłn por competencias Mariela Quiñones Montoro 309 Cuarta parte La nueva dinĂĄmica empresarial. InnovaciĂłn y flexibilizaciĂłn en la industria Trabajo de organizaciĂłn y cadenas de valor. El caso de la vestimenta uruguaya Marcos Supervielle y Emiliano Rojido 337 Potencialidades y limitaciones de sectores dinĂĄmicos de alto valor agregado: la industria aeroespacial en MĂ©xico, Jorge Carrillo y Alfredo Hualde 373 La industria del salmĂłn en Chile: Âżcrecimiento social o explotaciĂłn laboral?, Antonio Aravena 397 Rasgos posfordistas en el paisaje laboral de la gran industria del Valle del Cauca colombiano Carlos MejĂ­a Sanabria 42

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires

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    The production of tt‟ , W+bb‟ and W+cc‟ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓΜ , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of tt‟t\overline{t}, W+bb‟W+b\overline{b} and W+cc‟W+c\overline{c} is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 ±\pm 0.02 \mbox{fb}^{-1}. The WW bosons are reconstructed in the decays W→ℓΜW\rightarrow\ell\nu, where ℓ\ell denotes muon or electron, while the bb and cc quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions
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