134 resultados para 4951


Relevância:

10.00% 10.00%

Publicador:

Resumo:

The work in this sub-project of ESOP focuses on the advective and convective transforma-tion of water masses in the Greenland Sea and its neighbouring areas. It includes observational work on the sub-mesoscale and analysis of hydrographic data up to the gyre-scale. Observations of active convective plumes were made with a towed chain equipped with up to 80 CTD sensors, giving a horizontal and vertical resolution of the hydrographic fields of a few metres. The observed scales of the penetrative convective plumes compare well with those given by theory. On the mesoscale the structure of homogeneous eddies formed as a result of deep convection was observed and the associated mixing and renewal of the intermediate layers quantified. The relative importance and efficiency of thermal and haline penetrative convection in relation to the surface boundary conditions (heat and salt fluxes and ice cover) and the ambient stratification are studied using the multi year time series of hydro-graphic data in the central Greenland Sea. The modification of the water column of the Greenland Sea gyre through advection from and mixing with water at its rim is assessed on longer time scales. The relative contributions are quantified using modern water mass analysis methods based on inverse techniques. Likewise the convective renewal and the spreading of the Arctic Intermediate Water from its formation area is quantified. The aim is to budget the heat and salt content of the water column, in particular of the low salinity surface layer, and to relate its seasonal and interannual variability to the lateral fluxes and the fluxes at the air-sea-ice interface. This will allow to estimate residence times for the different layers of the Greenland Sea gyre, a quantity important for the description of the Polar Ocean carbon cycle.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Anteportada.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Acknowledgements The expertise of A. Graham Calder and Susan Anderson for the various stable isotope analyses is gratefully recognised. Ngaire Dennison is also thanked for her surgical expertise with the trans-splanchnic tissue catheter preparations. This study was supported by funds provided to the Rowett Institute of Nutrition and Health, University of Aberdeen and Biomathematics and Statistics Scotland by the Rural and Environment Science and Analytical Services Division of the Scottish Government. S. O. H. was a recipient of a FoRST (NZ) award to study abroad.

Relevância:

10.00% 10.00%

Publicador:

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Los Centros de Rehabilitación Psicosocial para personas con trastorno mental grave son recursos de la red pública de atención social de la Comunidad de Madrid. A pesar de su larga tradición son pocos los estudios que intentan evaluar su efectividad. En el presente trabajo se analizan retrospectivamente los resultados obtenidos en tres dominios centrales en la recuperación: el funcionamiento psicosocial, la calidad de vida y la discapacidad. Se analizan las 3173 puntuaciones de 1457 personas atendidas durante 5 años (2008-2012) en 10 Centros de Rehabilitación Psicosocial. Se utilizaron los siguientes instrumentos: cuestionario de datos sociodemográficos y clínicos de elaboración propia, Satisfaction with Life Domain Scale (SLDS), Escala de Evaluación del Funcionamiento Global (EEFG) y WHO Short Disability Assessment Schedule (WHO DAS-S). Se observan correlaciones estadísticamente significativas entre todas las medidas de los diferentes instrumentos y la duración de la estancia en los centros, de tal forma que a más tiempo de intervención se obtienen mejores resultados, al menos durante los primeros 5 años. Desagregando los datos por sexo se constata que las mujeres mejoran más y más rápido que los hombres. Las personas que son atendidas en los Centros de Rehabilitación Psicosocial mejoran en calidad de vida, funcionamientos psicosocial y discapacidad. Esa mejoría es más pronunciada en los primeros cinco a ocho años de intervención y es mayor en mujeres que en hombres.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Student engagement is a key factor in academic achievement and degree completion, though there is much debate about the operationalization and dimensionality of this construct. The goal of this paper is to describe the development of an psycho-educational oriented measure – the University Student Engagement Inventory (USEI). This measure draws on the conceptualization of engagement as a multidimensional construct, including cognitive, behavioural and emotional engagement. Participants were 609 Portuguese University students (67 % female) majoring in Social Sciences, Biological Sciences or Engineering and Exact Sciences. The content, construct and predictive validity, and reliability of the USEI were tested. The validated USEI was composed of 15 items, and supported the tri-factorial structure of student engagement. We documented evidence of adequate reliability, factorial, convergent and discriminant validities. USEI’s concurrent validity, with the Utrecht Work Engagement Scale-Student Survey, and the predictive validity for self-reported academic achievement and intention to dropout from school were also observed.