Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 43261-43280 of 101605
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(2002)Octodon degus is a desert rodent of northern Chile, adapted to survive with a limited supply of water. This rodent has a high degree of fecal dehydration, related to colon water absorption. With the hypothesis that aquaporins ...
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(2002)To determine the existence of an acid stress response in Helicobacter pylori the global changes in the proteins synthesized by the bacterium when subjected to an acid stress were studied. H. pylori ATCC43504 previously ...
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(2002)The large size (six membrane-spanning repeats in each of four domains) and asymmetric architecture of the voltage-dependent Na+ channel has hindered determination of its structure. With the goal of determining the minimum ...
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(2002)Chronic ethanol exposure causes alterations in biologic membranes of different cell types. (Na + K)–adenosine triphosphatase (ATPase), a membrane-bound enzyme inhibited by the acute presence of ethanol, increases its ...
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(2002)The cDNAs for two casein kinase 1 (CK1) homologues, TcCK1.1 and TcCK1.2, have been isolated from Trypanosoma cruzi. Both isoforms showed strong identity with other known CK1s. Their corresponding genes encode proteins of ...
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(2002)Santuario de la Naturaleza Yerba Loca (SN Yerba Loca), Metropolitan Region (MR), 33° S, Chile is analyzed for its conservation value and efficiency in protecting native vascular plants in a regional context. The reserve's ...
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(2002)We explored the risk factors for gallbladder cancer and explanations for its sharp and constant incidence increase in Chile since the 1970s. We compared 114 consecutive patients with verified gallbladder cancer, diagnosed ...
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(2002)1. The common mechanism of action of non-steroidal anti-inflammatory drugs (NSAIDs) is the inhibition of the enzyme cyclo-oxygenase (COX), however, this inhibition is not enough to completely account for the efficacy of ...
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Enumeration of Acidithiobacillus ferrooxidans adhered to agglomerated ores in bioleaching processes (2002)In bioleaching processes, bacteria adhered to agglomerated ores are frequently determined in the washing solution after treating the mineral with different techniques like sonification or chemical treatment with SDS, Tween ...
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(2002)The genes for gibberellin (GA) biosynthesis are clustered in the fungus Gibberella fujikuroi. In addition to genes encoding a GA-specific geranylgeranyl diphosphate synthase and a bifunctional ent-copalyl diphosphate/ent-kaurene ...
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(2002)The inhibition of cyclooxygenase enzymes by nonsteroidal anti-inflammatory drugs (NSAIDs) does not completely explain the antinociceptive efficacy of these agents. It is known that cholinergic agonists are antinociceptive, ...
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(2002)Amplification of RNA from human sperm heads yielded a fragment of 435 bp that shares 100% identity with a central region of the 16S mitochondrial rRNA. The nuclear localization in the sperm of the mitochondrial RNA was ...
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(Elsevier, 2002)Chile has a long tradition of exploiting mineral resources, particularly copper (Cu). One of the largest Cu smelters, Caletones, located some 150 km south of the country’s capital, Santiago, in Central Chile, is responsible ...
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(2002)This paper presents a framework for maximum a posteriori (MAP) speaker adaptation of state duration distributions in hidden Markov models (HMM). Four key issues of MAP estimation, namely analysis and modeling of state ...
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Hyperhomocysteinemia and endothelial function in young subjects: Effects of vitamin supplementation (2002)Background: The relationship between hyperhomocysteinemia and cardiovascular disease has not been totally elucidated. Hypothesis: The study aimed to verify the association between hyperhomocysteinemia and endothelial ...
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(2002)To explore the bacterial microbiota in Chilean oyster (Tiostrea chilensis), a molecular approach that permits detection of different bacteria, independently of their capacity to grow in culture media, was used. Bacterial ...
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(Ediciones Doyma, S.L., 2002)Brain perfusion abnormalities after an abstinence period of 28 days in a group of patients with alcohol and / or cocaine dependence was investigated. They were related with gender, consumption period and number of drugs. ...
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(2002)Malassezia furfur (Pityrosporum orbiculare) is a lipophilic microrganism and it has also been associated with pityriasis versicolor, folliculitis, seborrheic and atopic dermatitis, fungemia and systemic infections. The ...
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(2002)In mammals, the pleiotropic biological functions of tumor necrosis factor alpha (TNF-α) may include important effects on human reproductive physiology. Thus, chronic anovulation, oligo or amenorrhea, infertility, ...
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(2002)Complete achromatopsia is genetically heterogeneous and segregates with mutations in CNGA3 or CNGB3 genes, which respectively encode for α- and β-subunits of the cyclic-nucleotide-gated (CNG) cation channel expressed in ...
