Evaluación del comportamiento biológico de tres cementos obturadores endodónticos en tejido subcutáneo de ratones

The aim of this study was to evaluate the biological behavior of the root canal filling sealers: Endofill, Endomethasone and Sealer 26 when in contact with the subcutaneous connective tissue of rat. For the study one control and three experimental groups were used. A total of 15 animals were divided into 5 for each period: 7, 21, and 60 days. The obtained histological sections were processed and stained using the hematoxiline & eosine technique. The histological sections were subjective and comparatively analyzed using optic microscopy. The intensity of the inflammatory reaction and the level of fibrosis of the tissue were registered. The results were registered in scores and statistical analysis by KRUSKAL-WALLIS p<0,05 and MILLER methods. The statistical analysis revealed that in the period of 60 days, there was statistical significance to group II (Endofill) between group (control) and III (Endomethasone) with mononuclear cells into connective tissue. All materials promoted inflammatory reaction more intense at 7 and 21 days with the Endomethasone showing the best results.

Evaluación del soporte social: análisis de literatura en la base de datos ebsco, búsqueda académica entre 2001 y 2011

This study aimed to analyze the literature on social support in the database ebsco-Academic Search between 2001 and 2011. It was based on a search for items that had the words "social support" and "scale" in the abstract. The sample consisted of 107 studies. It was verified in the results that there were fluctuations in the number of studies over the years. Aging & Mental Health and Quality of Life Research were the journals which published the most. On the country of residence of the first author, the countries that dominated were United States and England. 34 different instruments were used to assess social support. We also observed a lack of information concerning the psychometric qualities in the instruments descriptions.

Evaluación del impacto medioambiental sobre zonas costeras en condiciones de oleaje y contaminación extremales

[ES] En este trabajo se utilizan los principios generales de la óptica geométrica y la forma del espectro teórico de oleaje TMA (basado en datos experimentales) para derivar un modelo numérico aplicable en aguas de poca profundidad, cuyo objetivo final es prever los impactos medioambientales provocados en condiciones de oleaje y contaminación extremales. Este modelo es puesto en práctica en una zona costera del archipiélago canario, siendo sus resultados bastante coherentes con los observados en situaciones reales.