The use of new technologies does not mean that the applied education model is modern. New technologies can be used in a way that follows the traditional education model, with all its deficiencies. The collaborative education model involves students in…

The etiology and epidemiology of Pythium root rot in hydroponically-grown crops are reviewed with emphasis on knowledge and concepts considered important for managing the disease in commercial greenhouses. Pythium root rot continually threatens the productivity of numerous kinds of crops…

2013

The chemical effects of acoustic cavitation are obtained in sono-reactors built-up from a vessel and an ultrasonic
source. In this paper, simulations of an existing sono-reactor are carried out, using a linear acoustics model, accounting
for the vibrations of the…

Descripción completa.

En este artículo ofrecemos algunas ideas sobre la actividad científica, en Venezuela. En la evolución de la cultura y comunidad académica en Venezuela durante la primera década de gobierno de la revolución bolivariana socialista (1998-2008) nos hemos propuesto llenar lo…

Este trabalho teve como objetivo avaliar a inclusão de farinha de cupuaçu (CM) em substituição ao milho moído em dietas para vacas leiteiras em lactação, considerando o consumo voluntário, produção e composição do leite., 2013

ABSTRACT: Insects commonly well-known as white grubs are the larval phase of beetles that belong to the Melolonthidae (Coleoptera). This family contains an expressive number of insect species that have different bioecological functions in the agroecosystems in the adult and…

2008

2008