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Purpose: The aim was to assess how two contextual variables, number of students per class and in-class global cooperation, affect students’ academic performance in physical education. Method: Multilevel analysis was performed given the data’s hierarchical nature (L1 = 1,185 participants and L2 = 64 classrooms), including regression analysis to assess how the contextual variables at the classroom level affected students’ grades. Results: Results showed that the differences observed between classrooms in students’ academic performance can be attributed largely to the perceived in-class global cooperation and not to the number of students per class. Group processing, promotive interaction, and individual accountability were the strongest predictors because these cooperative learning essential elements showed significant differences between classrooms. Discussion/Conclusion: Academic performance in physical education is not only determined by personal factors but also by contextual factors like perceived in-class cooperation. Group processing, promotive interaction, and individual accountability can be considered the most relevant critical features. Cooperative learning contexts are not easy to build, and depending on how successfully they are constructed, the outcomes can be very different.

Revista Ciencias Biomédicas Vol.5, Núm. 2 (2014) Pag 317 - 328 Introducción: para Colombia el virus Chikungunya (CHIKV) se constituye en un potencial problema de salud pública, debido a que en el país tanto en ámbitos rurales como urbanos es endémica la presencia del mosquito A. Aegypti, vector de la infección, el mismo del virus del dengue. Objetivo: realizar revisión temática referente al CHIKV y al síndrome febril que ocasiona. Metodología: revisión bibliográfica descriptiva, con búsqueda en las bases de datos: PubMed, Scopus, ScienceDirect, OvidSP y Medline; incluyendo artículos de revisión, reportes de casos y estudios experimentales. Resultados: se encontraron 107 artículos, de los cuales se utilizaron 78 documentos a conveniencia: revisiones, informes de investigación, reportes de casos, boletines e informes epidemiológicos. Conclusiones: el CHIKV es un Alphavirus con un solo serotipo identificado, una de las 29 especies pertenecientes al género Alphavirus de la familia Togaviridae. Posee dos ciclos de transmisión, uno selvático o enzoótico y otro urbano o epizoótico. El período de incubación varía entre uno y doce días. Fiebre alta, rash cutáneo y severo dolor osteoarticular, son las características clínicas que cursan en seis días, con baja letalidad y difícil diferenciar de otras enfermedades tropicales, incluidas malaria y dengue. En la mayoría de los casos se adquiere inmunidad permanente. El tratamiento es sintomático y no existe vacuna disponible. Las autoridades sanitarias deben fortalecer los programas de control vectorial, para hacer frente a esta enfermedad.

In this paper the relation between high intellectual capabilities and information retrieval strategies are studied. The variables are: sex, age, educational level and creativity. Strategies were measured with the ACRA Scales (Román and Gallego, 1994, 2004). General intelligence was measured with the "g" Factor Test (Cattell and Cattell, 1990) and the Progressive Matrices Test (Raven, 1996). Creativity was analyzed using the TAEC Abreaction Test (de la Torre, 1991). Primary School and Compulsory Secondary Education students (aged 9-14) from Castilla y León (Spain) were chosen because of their high intellectual capability. Results show a significant association between general intelligence and information retrieval strategies. Age determines to some extent the use of strategies. The relation between a high intellectual capability and creativity only promotes the use of Written Answer strategies. A revision of evaluations of perceived use versus evaluations of real use of strategies is proposed. En este trabajo se estudian las relaciones entre alta dotación intelectual y estrategias de recuperación de información, atendiendo a las influencias del género, la edad, el nivel educativo y la creatividad. Se evalúan las estrategias con las Escalas ACRA (Román y Gallego, 1994); la inteligencia general con el Test de Factor "g" (Cattell y Cattell, 1990) y el Test de Matrices Progresivas (Raven, 1996) y la creatividad con el Test de Abreacción (TAEC) (De la Torre, 1991). Se utiliza una muestra de alumnos de alta dotación intelectual de Educación Primaria y Secundaria (9-14 años).Los resultados no muestran relaciones significativas entre las variables inteligencia general y estrategias de recuperación de la información. La edad modula de forma limitada su uso y la asociación entre alta dotación y alta creatividad solo favorece la utilización de las estrategias de Respuesta Escrita. Se propone una revisión de las evaluaciones de uso percibido, frente a las de uso real.

Normal aging is characterised by alterations affecting the cognitive functions. In 1958 Kral coined the term 'benign senescent forgetfulness' to designate a memory disorder that is different from those that occur during normal aging. In 1986, a group of researchers at the National Institute of Mental Health and other centres proposed a novel neuropsychological entity called age-related memory disorder. The determination of the prevalence, progression and risk factors of this condition currently represents an important challenge for the scientific community.To establish the rate of prevalence and to identify some of the risk factors involved in age-related memory disorders.The universe consisted of all the patients over 50 years of age from a health district (234 individuals); the diagnostic criteria were applied to the whole sample. In addition to the patients, a control group was also chosen in order to be able to establish a correlation with selected risk factors.The prevalence rate was found to be 39.7%, of which 38.7% were males and 40.4% were females. It was also observed that the impairment was greater as the patient's age and the length of the disease history increased. As far as risk factors are concerned, it was observed that smoking and psychosocial characteristics constitute predisposing factors, while this was not the case for arterial hypertension, a history of dementia and the satisfaction of basic needs.

Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte.Subdirección General de Coordinación Bibliotearia, 2017 T. 1. (327 p., 1 map. pleg, [2] h. de grab.)

Copia digital. Madrid : Ministerio de Cultura. Dirección General del Libro, Archivos y Bibliotecas, 2010 El subtít. precede al tít.

Copia digital. Madrid : Ministerio de Cultura. Subdirección General de Coordinación Bibliotecaria, 2009