The author the two process of natural selection: the intra-sexual and the inter-sexual or epigamic. He comments the sexual behaviour of males and females in mammls, including man; and he emphasizes the biggets parental investment made for females in reproduction during periods of gestation and care of th...
This article to contribute to the improvement of agriculture and nutrition of Peruvians in over 3000 peasant communities in the Andes. The author presents the 15 principal food plants species imcluding tubers roots and grains, as well as the nutritional composition of 11 these species. The characteristic...
The author describes the current situation o the mussel (Aulacomya ater (Molina 1782), an important resource of the Peruvian coast whose natural habitat was severely affected by the Niño phenomenon of 1982-83 as well as by over-exploitation. The author relates this situation too that of other mollusk...
During the study of 175 samples of 25 different foodstuff collected in Lima, Huaraz and Iquitos researchers discovered 14 distinct mites. The most contaminated foodsstuffs were rice, beans and cassava flour, each containing seven different species of mites. The greates number of species were found in foo...
In bits biographical study, the author has collected a wealth of information on the life and death of the hero of Peruvian medicine: Daniel Carrión. Using bibliographic material and press clipping, the author evokes the ambience and the conditions of those distant times, whem science and medical resea...
The author relates his experiences during a year of travelling throughout much of Peru. His realistic descriptions and conclusions shoulds be considered by those involved in healthy policy. To take advantage of indigenous medical knowledge and practices, incorporating them into the national health sys...
La sífilis del sistema nervioso ha aumentado en los últimos años en frecuencia. Se ha comprobado, por otro lado, la ineficacia de los tratamientos con penicilina de acción retardada y de corta duración. A propósito de dos casos recientemente estudiados, los autores hacen una revisión de la clínic...
