Buscar
Mostrando ítems 81-90 de 333
Effects of coca chewing on metabolic and hormonal changes during graded incremental exercise to maximum
(J. Appl. Physiol., 1996)
Abstract.
We examined the effects of 1 h of coca chewing on metabolic and hormonal responses during incremental exercise to exhaustion in traditional coca chewers (C; n = 8), and the results were compared with a group of ...
Chagas disease vector control in Central America
(Parasitology Today, 1997)
As the Southern Cone Initiative proceeds steadily towards eradication of Triatoma infestans, there is increasing interest in applying similar approaches to control Chagas disease vectors in Mexico, Central America and ...
An isoenzyme survey of Trypanosoma cruzi genetic variability in sylvatic cycles from French Guiana
(Experimental Parasitology, 1995)
Abstract
Twenty-seven trypanosomatidae stocks isolated from various hosts in French Guiana have been surveyed by Multilocus Enzyme Electrophoresis on cellulose acetate plates. The variability observed at 22 different ...
Effect of early, short-term supplementation on weight and linear growth of 4-7-mo-old infants in developing countries : a four-country randomized trial 1-4
(Am J Clin Nutr, 1996)
Abstract.
The effect of supplementation on growth was tested by means of four similar controlled randomized trials in the Congo (n = 120), Senegal (n = 110), Bolivia (n = 127), and New Caledonia (n = 90). Four-month-old ...
Exercise training in chronic hypoxia has no effect on ventilatory muscle function in humans
(Respiration Physiology, 1998)
Abstract
At the highest altitude, aerobic work is limited by environmental oxygen availability. We therefore reasoned that the hyperpnea associated with endurance training at altitude should provide a strong stimulus for ...
Genetic variability and geographic differentiation among three species of Triatomine bugs (Himiptera- Reduviidae)
(Am. J. Trop Med. Hyg., 1997)
Abstract.
Three species of triatomine bugs, Triatoma sordida, T. guasayana, and T. patagonica, were examined by cytogenetic (C-banded karyotypes and male meiotic process) and isoenzymatic studies. These three species, ...
Cytogenetic and isozymic comparisons of two laboratory lines of Glossina palpalis gambiensis
(Annals of Tropical Medicine and Parasitology, 1994)
Abstract.
The genetics of two laboratory colonies of Glossina palpalis gambiensis were characterized by C-banding and isoenzyme studies. The colonies, derived from flies collected in the same locality, had different ...
Les chimanines, nouvelles quinoleines substituées en 2, isolées d'une plante bolivienne antiparasitaire : galipéa longiflora
(Journal of Natural Products, 1993)
ABSTRACT.-Petroleum ether and CHCI₃, extracts of stem, root bark, and leaves of Galipea longifora were found active in vitro against Leishmania sp. and Trypanosoma cruzi at 100 µg/ml. The activity-guided fractionation of ...