La década del 60 Este pasado dos de octubre se conmemoraron cuarenta años de los hechos sangrientos en los cuales se reprimió a miles de jóvenes que exigían sólo una apertura democrática en nuestro país. Se han escrito muchos ensayos acerca del movimiento y de las condiciones en que ocurrió. Algunas narraciones describen cómo eran en esa época la forma de vestir, los autos, la música, la televi...

A flow considered effective or dominant in the process of stable channel forming, is the bankfull discharge associated to frequency between 1 and 2 years with an average of 1.5 year, according to Dunne and Leopold, 1978. Bankfull discharge or forming discharge is the flow which defines the morphological characteristics of the channel such as bars, meanders and curves. In this article, different...

In order to assess possible human effects associated with glyphosate formulations used in the Colombian aerial spray program for control of illicit crops, a cytogenetic biomonitoring study was carried out in subjects from five Colombian regions, characterized by different exposure to glyphosate and other pesticides. Women of reproductive age (137 persons 15-49 yr old) and their spouses (137 per...

Distributional data for the fourteen species of Gerridae known to occur in Argentina are given: Eurygerris fuscinervis (herein first recorded from San Juan and San Luis Provinces), Limnogonus (Limnogonus) aduncus (herein first recorded from Formosa Prov.), L. (L.) ignotus, L. (L.)profugus, L. (Neogerris) lubricus (herein first recorded from C6rdoba Prov.), Brachymetraalbineruaalbinerua (herein ...

BACKGROUND Early diagnosis and treatment are fundamental to tuberculosis (TB) control. Nevertheless, the effectiveness of TB management continues to be influenced by treatment adherence. OBJECTIVE To determine which factors are predictive of adherence to TB treatment at the time of diagnosis in Colombia. METHODS A cohort of 300 patients newly diagnosed with TB was followed up over 26 weeks....