Nanotechnology in food industry II: risk assessment and legislation

Currently, there is increasing use of nanomaterials in the food industry thanks to the many advantages offered and make the products that contain them more competitive in the market. Their physicochemical properties often differ from those of bulk materials, which require specialized risk assessment. This should cover the risks to the health of workers and consumers as well as possible environmental risks. The risk assessment methods must go updating due to more widespread use of nanomaterials, especially now that are making their way down to consumer products. Today there is no specific legislation for nanomaterials, but there are several european dispositions and regulations that include them. This review gives an overview of the risk assessment and the existing current legislation regarding the use of nanotechnology in the food industry.

Breves notas sobre un posible sentido común crítico ante los desafíos actuales

Basado en elementos de la filosofía clásica, el common sense británico y la Escuela de Frankfurt, el autor postula un sentido común guiado críticamente, que serviría para evaluar las tendencias históricas y los modelos de modernización en el Tercer Mundo. Evitando extremos, este teorema rechazaría tanto las pretensiones de verdad de muchos enfoques racionalistas como el relativismo epistemológico y ético. La existencia de leyes y etapas obligatorias de la historia es uno de esos extremos; otro es la opción teórica que afirma que los modelos culturales son incomparables e inconmensurables entre sí. La existencia de un solo paradigma normativo-positivo de desarrollo es insostenible, pero igualmente la posición que decreta la diversidad e incomparabilidad totales de los regímenes civilizatorios. Es conveniente adoptar una línea intermedia entre universalismo y particularismo y alcanzar una síntesis fructífera de ambos.

These things are alive: relationships between material culture, communities, and archaeological legislation

This paper deals with the relationship between different sets of archaeological legislation, material culture and communities. First it presents a historical sketch of the heritage legislation in the West and its contemporary uses. Secondly, it shows how alternative archaeological agencies, such as community archaeology, deal with these problems. The discussion is especially relevant in Brazil, where contract archaeology is presently overwhelming, and the issue is raised in the last part of the paper.

Democratic Stability through the Concept of Reasonableness in John Rawls

The paper addresses the question of the stability of a democratic state and shows the shortcomings of the political and institutional structure for this purpose. It argues for the need of an additional factor of reasonableness as defined by John Rawls. We reflect on its articulation with rationality, its role regarding laws and the areas where its presence is crucial to the health and maintenance of a democratic political society. The analysis concludes by justifying the instrumental need of such faculty in the political arena as well as vindicating it as a mandatory civic duty.