Este trabajo examina de nuevo la relación entre durabilidad y conversión de hormigones de cemento aluminoso, HAC (High Alumina Cement).
La conversión es un proceso natural e inevitable a través del cual este material consigue una condición definitiva y…

Rangelands in Kenya make up for 70% of the land and hosts 60% of its livestock population. This ecosystem is largely inhabited by nomadic pastoralists whose livelihood depents on livestock. Land subdivision, population growth, climate change, devastating droughts, land degradation…

Over the last few years several initiatives have been undertaken in Brazil and worldwide for the popularization of science, especially by research institutions and interactive museums that have sought to broaden their operation scope. Embrapa Food Technology, located in the…

Resumo: A modelagem ambiental tem se mostrado uma importante ferramenta no estudo de impactos ambientais das mudanças da paisagem de curta e longa duração. O Modelo CLUE-S possibilita estudar a dinâmica de paisagem na perspectiva de simular cenários. Abordar-se-á os…

Brachiaria brizantha cv. Piatã was released from a Brazilian breeding program of Brachiaria genus to be a new option of forage plant for use in grasslands. This cultivar has been presented interesting strategy to persist on higher temperatures and water…

The effect of schooling on nutritional knowledge, attitudes and nutritional outcomes in Ethiopia was investigated. Data were obtained in late 1989 in Debre Birhan in Shoa province from three groups: 267 mothers, 114 clinic users and six primary schools with…

Stemming from the dialectical concepts of critical epistemology developed by feminism and Critical Theory (specifically, the Frankfurt School), this thesis attempts to articulate the political dimension of knowledge and to demonstrate how this dimension is incorporated into the liberatory pedagogical…

This thesis is about how medical knowledge is constructed by staff for patients and their families in a Japanese 'comprehensive care' facility for the treatment of epilepsy (the JEC). The thesis sets out to explain the possible reasons for differences…

A survey was undertaken to assess the knowledge, attitudes and practices, with respect to malaria, of 300 women from six randomly selected rural communities in Central Ethiopia from December 1991 to February 1992. Eighty-five per cent were able to recognize…

Concept mapping in college-level physics was investigated. The study was carried out in three parts. First, an attempt was made to validate concept mapping as a method of evaluating student learning at the junior college level (ages 16-21). Several measures…