2013

The environmental risks associated with genetically-engineered (GE) organisms have been controversial, and so have the models for the assessment of these risks. We propose an ecologically-based environmental risk assessment (ERA) model that follows the 1998 USEPA guidelines, focusing on potential…

Em Minas Gerais predominam solos de baixa fertilidade natural e tipos climáticos mais secos. A deficiência de oxigênio é localizada em várzeas e em solos rasos. A erosão é agravada nos solos de textura média e arenosa e a mecanização…

The glacigenic boulders from the Hirnantian Don Braulio Formation of the Argentine Precordillera contain a well preserved shelly fauna allowing to a better knowledge of brachiopods and bivalves, but gastropods remain undescribed. The purpose of this paper is to give…

Although South America lost more megafaunal genera than any other continent during the Late-Quaternary Extinction event (LQE), little is known about the chronology, causes or dynamics of these extinctions, especially in the northern part of the continent. Fossil deposits in…

En este artículo se describen las vinculaciones entre la ciudadanía de baja intensidad y las estrategias que los políticos llevan adelante durante su gestión, a través de los planes asistenciales. Asimismo se explican las diferentes relaciones clientelares que se generan…

El objeto de este trabajo es mostrar dos problemas básicos que obstaculizan la producción
de didácticas para las ciencias jurídicas. El primero de estos problemas lo constituyen los
usos de la ética, y la conciencia, definitorios tanto de la enseñanza…

This paper aims to clarify an economic mechanism behind the growing dichotomy between geo-economics and the borderless global knowledge economy. The proposed hypothesis is that geo-economic fault-lines, which are the product of the past prejudices of racial, linguistic, and cultural…

2013

2013