Women's ability to negotiate safer sexual practices, particularly condom use, is a vital
component of HIV/STD prevention strategies. Gender-based power imbalances may constrain …

Community forestry is pursued as rural development strategy in many tropical forest regions
worldwide. In Tropical America, rich experiences have been accumulated with community …

Systolic blood pressure was measured, using an indirect tail method, in conscious male rats
at several time intervals after the intracerebroventricular injection of mineraloand …

Many reports have contributed to the notion that catecholamine neurons in the brain stem
participate in the central regulation of arterial blood pressure (for reviews see refs. 2, 6). In …

The effect of breathing with a positive expiratory pressure of 5 cm H 2 O was investigated in
eight patients with COPD (mean [SD] FEV 1 = 54 [13] percent predicted). Specific work of …

The use of biomass pellets as a source of renewable energy has increased in recent times.
However, pellet storage during transportation can compromise their properties, due to …

This study deals with the effects of [beta]-endorphin on blood pressure, heart rate, and
respiratory frequency in anesthetized and conscious rats after both peripheral and central …

While products based on nanotechnology are actually reaching the market, sufficient
knowledge on the associated toxicological risks is still lacking. Reducing the size of structures to …

Pain sensitivity in Spontaneously Hypertensive Rats (SHR) and normotensive Wistar-Kyoto
controls (WKY) as well as in experimentally hypertensive Wistar rats has been studied. …

Agroforestry practices in this area are widespread and extremely varied. Four systems found
in the vicinity of Iquitos are described, all of which begin as shifting cultivation fields, but …