En las zonas productoras de café los desechos de esta actividad son arrojados a los cursos de agua y/o terrenos agrícolas, sin tratamiento alguno, ya que el productor no cuenta con alternativas de uso, causando graves problemas de contaminación. Planificar…

Volviendo al papiro griego del siglo III d.C. que recoge la leyenda de la diosa Tefnut
y que abordamos ya en el número 23-24 de esta misma revista, establecemos ahora una comparación entre su contenido y el contenido de la…

Este trabajo tiene como objetivo ofrecer un
repaso de la vida de la fundadora de la
enfermería profesional y del contexto histórico-sociocultural en el cual se desarrolló.
Florence Nightingale era la primera teórica de
enfermería, supo aplicar sus conocimientos de…

En este artículo se sostiene que existe una primacía de la práctica y la acción sobre el conocimiento intelectual y la contemplación. Si esta tesis fuese falsa, no resulta comprensible por qué la prudencia y el hombre prudente son la…

Both in Chile and in other countries, managing municipal solid waste (MSW) is a difficult problem, due to the various variables explaining it. Several background data suggest that the possibilities of solving the problem are associated to the education and…

The Environmental Management System (EGS), was constituted at the University of Antioquia in order to improve the environmental conditions, health and well being levels of the community; promoting the efficient use of resources, involving cultural changes in consume patterns, knowledge…

The improvement or design of a solid waste management system in any locality should be based on the knowledge of the solid waste characteristics, such as generation per capita, density and composition; depending on the type of treatment that is…

To solve the several problems caused from the deficient solid waste management in many of our municipalities, must be considered 4 substantial items: planning, legislation, the most citizen participation and the financing aspect. Failing in any of those subjects is…

The objective of this paper is the development of a mathematical model of anaerobic digestion that simulates the principal control variables in the process, and helps the planning and operational phases in normal and particular situations of operation in the…

One of the main problems in anaphora resolution is how to find the correct antecedent for each anaphoric expression that appears in the discourse. As shown in a previous study (Rico, 1993), the type of knowledge required to select an…