724 research outputs found
LSS-3 leadership scale adaptation in soccer
Dadas las características teóricas y empíricas del Modelo Multidimensional de Liderazgo de Chelladurai, el presente trabajo de investigación tiene por objetivo adaptar la escala de Liderazgo al deporte del Fútbol (versión percepción de los propios entrenadores; LSS-3) en castellano, analizando sus propiedades psicométricas y el grado de congruencia y divergencia hallado en estudios precedentes. La adaptación se ha realizado a partir de la escala de Crespo, Balaguer y Atienza (1994) en el deporte del tenis. Los resultados muestran como no se mantiene la estructura factorial de cinco factores propuesta por Chelladurai y Saleh (1980), si bien se obtiene de forma significativa un importante grado de estabilidad factorial en las dimensiones Entrenamiento e Instrucción, Feedback Positivo y Conducta Autocrática. Asimismo, se obtienen valores adecuados de consistencia interna en todas las escalas, a excepción de Conducta Democrática y Conducta Autocrática. Por último, se discuten las implicaciones prácticas y de investigación de esta escala para el fútbolGiven the theoretical and empirical characteristics of the Multidimensional Model of Leadership Chelladurai, this research aims to adapt the level of leadership to football soccer (version perception of their own coaches, LSS-3) in Spanish, analyzing its psychometric properties and the degree of congruence and divergence in previous studies. The adjustment has been made taking the scale of Crespo, Balaguer and Atienza (1994) point of departure in tennis. The results show how the factor structure of five factors proposed by Chelladurai and Saleh (1980) is not kept, although one gets a significantly high degree of stability factor in the following dimensions: Training and Instruction, Positive Feedback and Autocratic Behavior. Except for Conduct Democratic and Autocratic Conduct, good internal consistency values on all scales are also obtained. Finally, we address the practical implications and research of this scale on football socce
Analysis and evaluation of levels of awareness and understanding of fooball tactics by a game board
El siguiente estudio aborda la relación existente entre el plano de acción y el plano de representación de los sujetos, a través del papel que
proporcionan los procesos de comprensión y toma de conciencia que suceden en el interior del individuo cuando se enfrenta a situaciones
de juego que demanda un deporte no lineal, con características sumamente abiertas, como es el fútbol. El objetivo que pretendemos es
analizar y evaluar la toma de conciencia y comprensión táctica del jugador infantil de fútbol base, desde la perspectiva funcional-estructural.
Para ello, se ha utilizado un juego de tablero simulador de fútbol, diseñado a partir de la reglamentación básica que rige este deporte. La
muestra utilizada está compuesta por ocho sujetos varones de categoría infantil, divididos en dos niveles de pericia: alto y bajo. Por tanto,
se trata de un análisis centrado en el jugador (Garganta, 2001). Los ítems utilizados para realizar este análisis de la comprensión táctica de
los jugadores se pueden categorizar siguiendo los principios tácticos de juego en fútbol que detalla Claude Bayer (1987). A su vez, los
contenidos tácticos que se detallan en los ítems, se clasifican en aspectos tácticos de tipo individual -ofensivo y defensivo-, grupal -ofensivo
y defensivo- y colectivo -ofensivo y defensivo-, siguiendo las clasificaciones propuestas por Fradua (1997), Garganta y Pinto (1997), Sánchez
y Fradua (2001).The following study addresses the relationship between the level of action and the level of representation of the subject, through the paper
that provide the processes of understanding and awareness that occur within the individual when confronted with game situations sport
demands a nonlinear, with features very open, like football. The objective we intend to analyze and evaluate the awareness and tactical
understanding of children's football player base, from the structural-functional perspective. For this, we used a board game football simulator,
designed from the basic regulations governing the sport. The sample is composed of eight junior class male subjects, divided into two skill
levels: high and low. Therefore, an analysis is centered on the player (throat, 2001). The items used for this analysis of tactical understanding
of the players can be categorized according to the principles of tactical football game detailing Claude Bayer (1987). In turn, the contents
listed in tactical items are classified in tactical aspects of individual type-offensive and defensive-, group-offensive and defensive-and collectiveoffensive
and defensive-, following the classification proposed by Fradua (1997 ), Throat and Pinto (1997), Sanchez and Fradua (2001)
Influência do estado emocional no desempenho: Estudo experimental
Objetivo: El presente estudio pretende conocer la influencia que ejerce el estado emocional y la manipulación afectiva en el rendimiento deportivo, de
forma experimental.
Método: 126 deportistas universitarios (Medad = 22.79; DT = 4.46), 54 mujeres (42.86%) y 7.78 años de experiencia deportiva (DT = 3.20), participaron en
este estudio que midió el optimismo (LOT-R) y el estado emocional (POMS-VIC) antes y después de realizar un test experimental mediante dinamómetro
manual digital TKK-5401.
Resultados: Al considerar los diferentes grupos (género, experiencia, nivel, optimismo y grupo experimental), destaca la no aparición de diferencias
significativas (pre-post).
Conclusiones: Los resultados demuestran que tanto estado emocional como las manipulaciones afectivas modifican el rendimiento. En concreto, las
manipulaciones afectivas, ligeramente negativas, aumentan significativamente el rendimiento obtenido en la tareaObjective: The aim of this study is to experimentally determine the influence of the emotional state and the emotional manipulation in sports
performance.
Method: 126 college athletes (Mage = 22.79; DT = 4.46), 54 women (42.86%) y 7.78 year of sports experience (DT = 3.20), participated in this study, which
measured optimism (LOT-R) and emotional state (POMS-VIC) before and after performing an experimental test using digital manual dynamometer TKK-
5401.
Results: Considering the different groups (gender, experience, level, optimism and experimental group), it emphasizes the non-appearance of significant
differences (pre-post).
Conclusions: Results have shown both the emotional state and the effective manipulations modify the performance slightly negative emotional
manipulations significantly increase the yield obtained in the taskObjetivo: O presente estudo tem como objetivo conhecer a influência exercida pelo estado emocional e manipulação afetiva no desempenho esportivo, de
forma experimental.
Método: 126 atletas universitários (idade = 22.79, DP = 4.46), 54 mulheres (42.86%) e 7.78 anos de experiência esportiva (DP = 3.20), participaram deste
estudo que mediu otimismo (LOT-R) e estado emocional (POMS-VIC) antes e depois de realizar um teste experimental usando um dinamômetro digital
manual TKK-5401.
Resultados: Ao considerar os diferentes grupos (gênero, experiência, nível, otimismo e grupo experimental), destaca-se o não aparecimento de diferenças
significativas (pré-pós).
Conclusões: Os resultados mostram que tanto o estado emocional quanto as manipulações afetivas modificam o desempenho. Em particular, as
manipulações afetivas, levemente negativas, aumentam significativamente o desempenho obtido na taref
Análisis y evaluación de los niveles de toma de conciencia y comprensión táctica en fútbol por medio de un tablero de juego
The following study addresses the relationship between the level of action and the level of representation of the subject, through the paper that provide the processes of understanding and awareness that occur within the individual when confronted with game situations sport demands a nonlinear, with features very open, like football. The objective we intend to analyze and evaluate the awareness and tactical understanding of children's football player base, from the structural-functional perspective. For this, we used a board game football simulator, designed from the basic regulations governing the sport. The sample is composed of eight junior class male subjects, divided into two skill levels: high and low. Therefore, an analysis is centered on the player (throat, 2001). The items used for this analysis of tactical understanding of the players can be categorized according to the principles of tactical football game detailing Claude Bayer (1987). In turn, the contents listed in tactical items are classified in tactical aspects of individual type-offensive and defensive-, group-offensive and defensive-and collective-offensive and defensive-, following the classification proposed by Fradua (1997 ), Throat and Pinto (1997), Sanchez and Fradua (2001).El siguiente estudio aborda la relación existente entre el plano de acción y el plano de representación de los sujetos, a través del papel que proporcionan los procesos de comprensión y toma de conciencia que suceden en el interior del individuo cuando se enfrenta a situaciones de juego que demanda un deporte no lineal, con características sumamente abiertas, como es el fútbol. El objetivo que pretendemos es analizar y evaluar la toma de conciencia y comprensión táctica del jugador infantil de fútbol base, desde la perspectiva funcional-estructural. Para ello, se ha utilizado un juego de tablero simulador de fútbol, diseñado a partir de la reglamentación básica que rige este deporte. La muestra utilizada está compuesta por ocho sujetos varones de categoría infantil, divididos en dos niveles de pericia: alto y bajo. Por tanto, se trata de un análisis centrado en el jugador (Garganta, 2001). Los ítems utilizados para realizar este análisis de la comprensión táctica de los jugadores se pueden categorizar siguiendo los principios tácticos de juego en fútbol que detalla Claude Bayer (1987). A su vez, los contenidos tácticos que se detallan en los ítems, se clasifican en aspectos tácticos de tipo individual -ofensivo y defensivo-, grupal -ofensivo y defensivo- y colectivo -ofensivo y defensivo-, siguiendo las clasificaciones propuestas por Fradua (1997), Garganta y Pinto (1997), Sánchez y Fradua (2001)
Validation of an instrument on tactical-offensive knowledge for players with intellectual disability
El objetivo de este trabajo se centra en construir y validar una herramienta que
permita, de forma fiable, evaluar el conocimiento de base de jugadores con
discapacidad intelectual leve en aspectos de táctica ofensiva en FS, permitiendo
usarlo como evaluación inicial complementaria que guíe el proceso de
entrenamiento. El tamaño muestral fue de 68 jugadores (Medad=27; SDedad=9.06
y Mexperiencia=11.78; SDexperiencia=1,29). Los resultados muestran valores
adecuados de consistencia interna y de fiabilidad (α=0.64, ω=0.74, ICC=0.64 y
test-retest). De manera complementaria, se realizó un análisis cualitativo,
mediante una entrevista colectiva a un grupo de expertos, sobre la utilidad del
instrumento en esta población de deportistas. Los resultados permiten establecer
una sólida base para el empleo de este instrumento en futuros estudiosThe objective of this work is to build and validate a tool that allows, reliably,
evaluate the base knowledge of players with mild intellectual impairment in
aspects of offensive tactical in FS, so that it can be used as an additional initial
evaluation to guide the training process of coaches. The sample size is
constituted by 68 subjects (Mage=27; SDage=9.06 y Mexperience=11.78;
SDexperience=1,29). The results show satisfactory internal consistency and
reliability values (α=0.64, ω=0.74, ICC=0.64 and test-retest). In a
complementary manner, a qualitative analysis was carried out, through a
collective interview with a group of experts, about the utility of the instrument in
this population of athletes. The results allow to establish a solid base for the use
of this instrument in future studie
Immune Response to SARS-CoV-2 Third Vaccine in Patients With Rheumatoid Arthritis Who Had No Seroconversion After Primary 2-Dose Regimen With Inactivated or Vector-Based Vaccines
Objective. The aim of this study was to assess the immune response after a third dose of SARS-CoV-2 vaccine in patients with rheumatoid arthritis (RA) with undetectable antibody titers after the primary regimen of 2 doses. Methods. Patients with RA with no seroconversion after 2 doses of SARS-CoV-2 vaccine and who received a third dose of either an mRNA or vector-based vaccine were included. Anti-SARS-CoV-2 IgG antibodies, neutralizing activity, and T cell responses were assessed after the third dose. Results. A total of 21 nonresponder patients were included. At the time of vaccination, 29% were receiving glucocorticoids and 85% biologic disease-modifying antirheumatic drugs (including 6 taking abatacept [ABA] and 4 taking rituximab [RTX]). The majority (95%) received the BNT162b2 vaccine and only one of them received the ChAdOx1 nCoV-19 vaccine. After the third dose, 91% of the patients presented detectable anti-SARS-CoV-2 IgG and 76% showed neutralizing activity. Compared to other treatments, ABA and RTX were associated with the absence of neutralizing activity in 4 out of 5 (80%) patients and lower titers of neutralizing antibodies (median 3, IQR 0-20 vs 8, IQR 4-128; P = 0.20). Specific T cell response was detected in 41% of all patients after the second dose, increasing to 71% after the third dose. The use of ABA was associated with a lower frequency of T cell response (33% vs 87%, P = 0.03). Conclusion. In this RA cohort, 91% of patients who failed to seroconvert after 2 doses of SARS-CoV-2 vaccine presented detectable anti-SARS-CoV-2 IgG after a third dose. The use of ABA was associated with a lower frequency of specific T cell response.Fil: Isnardi, Carolina A.. No especifíca;Fil: Cerda, Osvaldo L.. No especifíca;Fil: Landi, Margarita. Austral University Hospital; LiberiaFil: Cruces, Leonel Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; ArgentinaFil: Schneeberger, Emilce E.. No especifíca;Fil: Montoro, Claudia Calle. Austral University Hospital; LiberiaFil: Alfaro, María Agustina. No especifíca;Fil: Roldán, Brian M.. No especifíca;Fil: Gómez Vara, Andrea B.. No especifíca;Fil: Giorgis, Pamela. No especifíca;Fil: Ezquer, Roberto Alejandro. No especifíca;Fil: Crespo Rocha, María G. No especifíca;Fil: Reyes Gómez, Camila R.. No especifíca;Fil: de Los Ángeles Correa, Mária. No especifíca;Fil: Rosemffet, Marcos G.. No especifíca;Fil: Abarza, Virginia Carrizo. No especifíca;Fil: Pellet, Santiago Catalan. Austral University Hospital; LiberiaFil: Perandones, Miguel. No especifíca;Fil: Reimundes, Cecilia. Austral University Hospital; LiberiaFil: Longueira, Yesica Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; ArgentinaFil: Turk, Gabriela Julia Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; ArgentinaFil: Quiroga, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; ArgentinaFil: Laufer, Natalia Lorna. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones Biomédicas en Retrovirus y Sida. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Biomédicas en Retrovirus y Sida; ArgentinaFil: Quintana, Rosana Maris. No especifíca;Fil: de la Vega, María Celina. No especifíca;Fil: Kreplak, Nicolás. No especifíca;Fil: Pifano, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Maid, Pablo. Austral University Hospital; LiberiaFil: Pons Estel, Guillermo J.. No especifíca;Fil: Citera, Gustavo. No especifíca
Genomic, Pathway Network, and Immunologic Features Distinguishing Squamous Carcinomas
This integrated, multiplatform PanCancer Atlas study co-mapped and identified distinguishing
molecular features of squamous cell carcinomas (SCCs) from five sites associated with smokin
NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics
Xenarthrans – anteaters, sloths, and armadillos – have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with 24 domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, ten anteaters, and six sloths. Our dataset includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data-paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the south of the USA, Mexico, and Caribbean countries at the northern portion of the Neotropics, to its austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n=5,941), and Cyclopes sp. has the fewest (n=240). The armadillo species with the most data is Dasypus novemcinctus (n=11,588), and the least recorded for Calyptophractus retusus (n=33). With regards to sloth species, Bradypus variegatus has the most records (n=962), and Bradypus pygmaeus has the fewest (n=12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other datasets of Neotropical Series which will become available very soon (i.e. Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans dataset
Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)
Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters.
Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs).
Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001).
Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio
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