Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 43721-43740 of 101786
-
(1996)The phylogenetic, ontogenetic and seasonal hypotheses on the annual periodicity of menarche were tested. Data from the European, Asian (Caucasian, Mongolian and Caucaso-Mongolian people from the northern hemisphere) and ...
-
(1996)A model for random molecular evolution based on recurrent mutation is proposed. Recurrent mutation replaces completely any original base in a nucleotidic site. This occurs if more than four times the number of reproductive ...
-
(1996)Psychological and physiological indicators of presurgical stress are investigated in an unselected group of women without history of mental pathology. Among the instruments employed are the content analysis of verbal ...
-
(1996)Nonclinical populations of male and female subjects of middle socioeconomic level and different age ranges were assessed by means of the content analysis method developed by Gottschalk and associates. Verbal samples consisted ...
-
(American Society for Nutrition, 1996)We performed a liver biopsy and measured plasma concentrations of interleukin 1β (IL-1β) and tumor necrosis factor α (TNF-α), and spontaneous and lipopolysaccharide-stimulated in vitro monocyte production of IL-1β and TNF-α ...
-
(1996)To test the hypothesis that the increased health risk of children selected by a previously calculated and validated predictive model is associated with some maternal psychological characteristics, the universe of 107 mothers ...
-
(1996)Ca2+ and Gd3+ stimulated the GTPase activity of chicken brain tubulin 13- and 26-fold, respectively. Mg2+, Tb3+, and Na+ had no effect. This GTPase activity showed a saturation behavior with Ca2+ and Gd3+ with a maximal ...
-
(Blackwell Publishing Ltd, 1996)1. To examine the correlation between chemosensory response and dopamine release induced by hypoxic stimulation, we studied carotid bodies excised from anaesthetized cats. 2. The carotid bodies with their carotid (sinus) ...
-
(1996)Aerobic life is characterized by a steady generation of reactive oxygen species balanced by a similar rate of their consumption by antioxidants. To maintain homeostasis, there is a requirement for the continuous regeneration ...
-
(American Physiological Society, 1996)The importance of zinc in cell physiology is related mainly to its intracellular involvement in enzyme catalysis, protein structure, protein- protein interactions, and protein-oligonucleotide interactions. The mechanisms ...
-
(1995)The fetal llama exposed to an intense degree of hypoxaemia did not increase cerebral blood flow, but showed a marked peripheral vasoconstriction. The same cardiovascular response is observed in fetal sheep submitted to a ...
-
(1996)Chronic toluene inhalation provokes significant deleterious neurological effects in young glue sniffers and exposed workers. We have developed a chronic toluene inhalation model in the cat to address this issue. Neuronal ...
-
(1996)Experiments were designed to characterize the effect of progesterone on the hamster sperm acrosome reaction (AR). Progesterone stimulated exocytosis of previously capacitated spermatozoa in a dose-dependent manner. ...
-
(Cambridge University Press, 1996)The molecular karyotypes of several different protozoan parasites show high intra-species variation, including different kinetoplastids such as Trypanosoma brucei, Trypanosoma cruzi and Leishmania ssp. In this study, the ...
-
(1996)The aim of these experiments was to analyze neurite outgrowth during regeneration of opossum spinal cord isolated from Monodelphis domestica and maintained in culture for 3-5 days. Lesions were made by crushing with forceps. ...
-
(Endocrine Society, 1996)A 24-h rhythm of plasma PRL is present in fetal sheep. This rhythm is synchronized to an environmental clue (zeitgeber). We determined whether the light-dark cycle (L:D) is a zeitgeber for the fetal PRL rhythm and, if ...
-
(Elsevier Inc., 1996)Glutathione (GSH), trypanothione (T(SH)2) and glutathionyl spermidine (GSH-SP) concentrations were determined in the Tulahuen and LQ strains and the DM 28c clone of Trypanosoma cruzi. The concentrations of GSH, T(SH)2 and ...
-
(1996)We report the molecular cloning and characterisation of the first CK1 (casein kinase) gene of Drosophila melanogaster (dmCK1). The protein sequence (DMCK1) shares significant homology with other mammalian CK1 protein kinases ...
-
(1996)The fertilizing ability of stallion semen was analyzed using fresh and frozen samples, obtained before (June-July) or during (October-November) the breeding season. Thirty ejaculates obtained from 4 stallions, were used. ...
-
(1996)Background: Obesity is considered a protective factor for osteoporosis improving bone mass and maintaining higher levels of estrogen during menopause. Objective: To determine the association of obesity with bone mineral ...
