Treatment of effluents contaminated with prions. Chemical reactor design

The control and elimination of prionic infective agents that may be present in the effluents, turns out to be a complicated mechanism inside a High Containment bological Facility. There are two ways to carry out this neutralization: Installation of thermal systems to ensure achieve a minimum temperature of 134 ° C sterilization plateau for a residence time of 18 minutes, and the use of chemical reactors based on the addition of sodium hypochlorite so the mixture maintained 2% of free chlorine during the reaction period. This study presents the design phases, elements and benefits, of a chemical reactor that allows the treatment of prion effluents in order to serve as a model to biocontainment facilities with areas of animal experimentation, who want to develop their work with prions.

El modelo del sistema viable: una referencia estratégica para el estudio organizacional del sector cooperativo chileno

The Chilean Cooperative Sector (SCCh) can be explained as a human activity system of high complexity, which seeks to maintain an independent existence, in example, be viable. From this perspective, the Viable System Model (MSV) as conceptual reference presents a real opportunity to study the organization of the cooperative sector in Chile.The central objective of the work refers to study the feasibility of SCCh in a context of sectorial organization, considering the social, legal and economic fabric of the country today.To do this, supported by a systemic methodology were performed: a characterization of the problem situation of the sector -identifying some relevant factors in the areas of market structure, legal regulations and inter cooperation-an organizational diagnosis and proposed a set guidelines for its development.From the above it is concluded that there is relevance between the characteristics of the case study theoretical and methodological approach. The methodology takes tested in other organizational practices such as VIPLAN tools, and applies the SCCh. Its contribution in the field of study is oriented around a holistic view of the organization and promotion of their viability, thereby generating an approach that delivers specific sectorial development strategies, surpassing the approximation of descriptive characterization. Thus, we provide a diagnostic model of the Chilean Cooperative Sector and propose guidelines to support their organizational development.

Crossing the threshold: exile and literature in "El Canto del peregrino" (1999) by Angelina Muñiz-Huberman

This paper analyses the relation between exile and literature in Angelina Muñiz-Huberman’s work El canto del peregrino. In this collection of essays, the Spanish-Mexican writer, member of the second generation of Spanish Republican exiles in Mexico, outlines a poetics of exile. From the outset, the relation between exile and literature is presented in terms of identity: while defining exile as “literary form”, the book tends to prefer a metaphorical concept of exile over ‘merely’ historical or referential approaches to it. More in particular, this paper will examine how the author constructs an identity of ‘exiled writer’ based on the close association between exile and literature on the one hand, and on the view of exile as ‘home’ or ‘dwelling’, on the other hand. A second point of interest concerns the discursive impact of this literary and metaphorical concept of exile and the author’s personal experience. A brief analysis of the essayist’s discursive voice and her writing practice shows how Muñiz-Huberman gives shape to an intrinsically complex and paradoxical view on exile.