Browsing by Title Artículos de revistas
Now showing items 108-127 of 2801
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(Instituto Antártico Chileno, 1999)En la hidrósfera las especies químicas se pueden encontrar básicamente en tres fases: disueltos, en el material particulado suspendido en el agua y en los sedimentos. Estas dos últimas fases son de vital importancia para ...
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(MDPI, 2020)The mass concentration of atmospheric particulate matter (PM) has been systematically used in epidemiological studies as an indicator of exposure to air pollutants, connecting PM concentrations with a wide variety of human ...
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(Asociación Chilena de Microbiología, 1996)Las xilanasas son enzimas, producidas por hongos y bacterias que degradan el xilano de las hemicelulosas vegetales y tienen una importante aplicación en el bioblanqueamiento de la celulosa. A partir de compost, se ...
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(MDPI, 2021)Multifunctional peptides, capable of acting on different body systems through multiple mechanisms of action, offer many advantages over monofunctional peptides, including lower adverse side effects and costs. Erythrina ...
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(Universidad de Santiago de Chile. Dirección de Investigaciones Científicas y Tecnológicas, 1981)El alcaloide principal de las hojas de Sophora macrocarpa Sm. es la matrina. También fueron aisladas e identificadas N-metilcitisina y citisina, asi como N-óxido de matrina y el soforanol (5α -hidroximatrina). Los ...
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(AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2003-10-03)Cells adapt to hyperosmotic conditions by several mechanisms, including accumulation of sorbitol via induction of the polyol pathway. Failure to adapt to osmotic stress can result in apoptotic cell death. In the present ...
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(1979)Six alkaloids have been isolated from Lycopodium magellanicum. These include the known alkaloids lycopodine, acetyldihydrolycopodine, lycodine, N-methyllycodine, acetylfawcettine and a new alkaloid, 5-dehydro-magellanine. ...
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(Società Chimica Italiana, 1973)11-methoxydiaboline, an alkaloid previously described by us, was isolated from the root bark of Strychnos medeola, while from the stem bark of the same plant normacusine B, already known by the name of deoxysarpagine, was ...
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(Pergamon Press, 1976)
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(John Wiley and Sons Ltd, 2018)Three different series of alkyl mannoside derivatives have been synthesized, designing the hydrophobic portion to provide different topology to the surfactant and, hence, modulating their aggregation properties. The ...
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(AMER SOC PHARMACOLOGY EXPERIMENTAL THERAPEUTICS, 2006-08)Alpha 4 and beta 2 nicotinic acetylcholine receptor ( nAChR) subunits expressed heterologously assemble into receptors with high (HS) and low (LS) sensitivity to acetylcholine (ACh); their relative proportions depend on ...
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(ELSEVIER SCIENCE INC, 2002-09)Neuropeptide Y (NPY) and noradrenaline (NA) are co-transmitters at many sympathetic synapses, but it is not yet clear if their release is independently regulated. To address this question, we quantified the electrically ...
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(Wiley - Blackwell, 2013-07)Alpha-tocopherol (AT) was encapsulated with native (NIn), acetylated (AIn) or cross-linked (CIn) inulin (two degrees each) by spray-drying. A face central composite experimental design for each system (AT-NIn, AT-AIn(1), ...
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(BioMed Central Ltd., 2014)© 2014 Gutierrez et al.; licensee BioMed Central Ltd. Background: Cardiac hypertrophy is characterized by alterations in both cardiac bioenergetics and insulin sensitivity. Insulin promotes glucose uptake by cardiomyocytes ...
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(VCH PUBLISHERS INC, 1991-06)Studies on Salmonella typhi and Salmonella typhimurium outer membrane proteins have shown that the relative position of OmpC porin in sodium dodecyl sulfate-polyacrylamide gel electrophoresis undergoes an important shift ...
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(INST GRASA SUS DERIVADOS, 2006-09)Fish oils are the main sources of omega-3 (omega 3) polyunsaturated acids (PUFA) such as eicosapentaenoic (C20:5 omega 3) and docosahexaenoic (C22:6 omega 3) acids. World demand for omega 3 PUFA shows an increasing trend ...
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(1999)Several lines of evidence suggest that a defective protein folding is a central event in both Alzheimer's and prion disease. Although the two disorders are very different clinically, neuropathologically, and biochemically, ...
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(Elsevier Ltd, 2018)In the present paper we describe a simple method to immobilize amino cyclodextrins (CDs) and methylated-amino cyclodextrins on gold surfaces. We also report on the effect that the presence of methyl groups in the broader ...
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(ELSEVIER SCIENCE, 2006-02-27)Magnetised silica-based microparticles (MMPs) (5 mu m) with a high density of nanopores were used for horseradish peroxidase (HRP) immobilization and amperometric biosensor development in batch conditions. The resulting ...