Avaliação da dinâmica do uso da terra na bacia do arroio Santa Bárbara - pelotas (Brasil), no período de 1953 a 2006

Land use dynamics is a consequence of socioeconomic system cycles. In this context, this work was developed aiming to evaluate land use alterations in Santa Bárbara watershed (Pelotas - Brazil), during 53 years (1953 - 2006), evidencing socioeconomic elements that contributed to this process. For land use dynamic analysis, maps of 1953, 1965, 1995 e 2006 were elaborated. Spatial changes that happened in Santa Bárbara watershed represent a regional process: pasture areas had decrease while culture lands had a gradual increase. This conjuncture is a consequence of the crisis in livestock destined to salted and dried meat production and of the food industry growth in Pelotas that impelled urban expansion, forest area reduction and artificial water reservoirs increase. © Scripta Nova, 2010.

Ecoeficiencia y desarrollo de infraestructura urbana sostenible en Asia y América Latina: medidas para el desarrollo de infraestructura urbana basada en los principios de la ecoeficiencia en la Ciudad Región del Caribe, Cartagena, Barranquilla y Santa Marta de Colombia

Incluye bibliografía

Economía y mercado de trabajo en Santa Fe (Argentina): un aporte a la cuantificación de los Objetivos de Desarrollo del Milenio y a la elaboración del año base 2004

Incluye bibliografía

Biotecnología en la provincia de Santa Fe: el sector científico técnico

Incluye Bibliografía

Hernán Santa Cruz Barceló: un homenaje en la CEPAL

Resumen Este documento es una recopilación de las ponencias hechas por los participantes en el homenaje a don Hernán Santa Cruz Barceló, que tuvo lugar en la sede de la CEPAL en Santiago de Chile el día 7 de mayo de 1999. Fue organizado conjuntamente por el Instituto de Estudios Internacionales de la Universidad de Chile, la Fundación Felipe Herrera y la CEPAL.

Efeito materno sobre a curva de crescimento de ovinos Santa Inês por meio de modelos de regressão aleatória

Data set of 17.767 weight records of 4.210 Santa Inês lambs were used aiming to evaluate the importance of the inclusion of the maternal effect in the model to estimate components of (Co) variance and resulting genetic parameters for the growth curve through random regression models. The fixed and random regressions were fitted using Legendre Polynomials of order three, being fit four models that differed in relation to the inclusion of the additive genetic and permanent environmental maternal effects. Considerable increase was observed in Log L and decrease in the criteria AIC and BIC when the maternal effect was included (genetic or permanent environmental), evidencing its importance. The maternal genetic effect explained larger proportion of the phenotypic variance than the maternal permanent environmental along the growth curve. The direct additive genetic variance was inflated by maternal effect, when this last one was not considered in the analysis model, reflecting the same behavior in the heritabilities. The maternal permanent environmental effect contributed to maternal variance, as well as, it inflated maternal genetic variance, when it was not considered in the model. Similar behavior was verified with maternal heritability. The correlation estimated for the four models hardly differed in function of maternal effect. The maternal effect should be considered in the genetic studies of the growth curve of Santa Inês sheep.