Despite earlier evidence to the contrary, recent inquiries appear to reach a consensus that the poor
pay more for food. However, these studies utilize samples drawn on the basis of prior
knowledge of unfair pricing strategies, proximity of volunteer surveyors,…

Increasing attention to higher education policies in the knowledge-based society makes important to understand the relationship between socio-economic family characteristics and educational choices. This paper considers the decision to go to college in Argentina as a family's economic decision. The…

The complexity and variety of possible behaviours of the quaternary liquid-liquid, liquid-liquid-solid equilibrium at constant temperature and pressure and the ternary isobaric or isothermal liquid-liquid-vapor equilibria are very high and, sometimes, the phase equilibria diagrams appear incomplete and not clearly…

In Mexico, the Knowledge of theprotozoa related lo mollusks, begin with the report of trhee forms associated to the oyster Crassotera corteziensis Hertlein, collected in the pacific coast in San BIas, Nayarit. From the Gulf the México, was protozoologically analysed…

The Gulf 0f Mexico constitutes a natural resource of immense ecological and economic importance foe Mexico and the World (Vidal, el al., 1997). Our capacity to exploitit rationallydepends on our knowledge of its nature, fundamentally of its circulation system, amongst…

Los virus herpes bovino 1 y 5 (BHV-1 y 5) afectan naturalmente al bovino,
especie en la que provocan diversas manifestaciones clínicas: rinotraqueítis, vulvovaginitis pustular infecciosa (IPV), balanopostitis (IPB), conjuntivitis, aborto y encefalitis. La
distribución de la infección es mundial,…

Desde la Física se han hecho numerosas contribuciones a la prevención de las enfermedades y
a la salud humanas. Con técnicas de avanzada científicos europeos y estadounidenses nos sorprenden día a
día con los resultados de sus investigaciones. Mucho menos…

This instrument was part of the research project "Research on Evaluation of Health and Education Plans and Programs in the Province of Buenos Aires", developed by the of Chair Preventive Psychology of the Psychology course of studies at the School…

One of the more recent and alluring phrases used by development and resource management practitioners and theorists is "traditional ecological knowledge." Although there is a substantial amount of the literature on this subject, these studies have unfortunately an inadequate characterization…

by Qi Dong., Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999., Includes bibliographical references (p. 169-171).