Browsing by Title Artículos de revistas
Now showing items 529-548 of 4966
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(1998)In cardiac sarcolemmal vesicles, MgATP stimulates Na+/Ca2+ exchange with the following characteristics: 1) increases 10-fold the apparent affinity for cytosolic Ca2+; 2) a Michaelis constant for ATP of ~500 μM; 3) requires ...
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(ELSEVIER SCIENCE BV, 2007-02)Chemoreceptor (glomus) cells of the carotid body are synaptically connected to the sensory nerve endings of petrosal ganglion (PG) neurons. In response to natural stimuli, the glomus cells release transmitters,which ...
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(2012-01-18)When a salient object in the visual field captures attention, the neural representation of that object is enhanced at the expense of competing stimuli. How neural activity evoked by a salient stimulus evolves to take ...
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(Pontificia Universidad Católica de Valparaíso -- Chile, 2005-12-15)The present reflection refers to data obtained about the social representations of genomic research and its applications through interviews with legislators and lawyers, biomedical researchers and civilians and the review ...
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(AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2006-04-07)The folding of glycoproteins in the endoplasmic reticulum (ER) depends on a quality control mechanism mediated by the calnexin/calreticulin cycle. During this process, continuous glucose trimming and UDP-glucose-dependent ...
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(2005)The synthesis of noncellulosic polysaccharides and glycoproteins in the plant cell Golgi apparatus requires UDP-galactose as a substrate. We have cloned and characterized a nucleotide sugar transporter from Arabidopsis ...
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(Royal Soc Chemistry, 2015)The planar to three dimensional transition of Au13-nAgn clusters is investigated. To do so the low lying energy configurations for all possible concentrations (n values) are evaluated. Many thousands of possible conformations ...
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(2004)Model compounds are used to study the aurophilic attraction among gold atoms in the different oxidation states Au(i)-Au(i), Au(i)-Au(iii) and Au(iii)-Au(iii). An attraction is found for all models and there is a reasonable ...
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(2003)The coexistence of gold-gold contacts and hydrogen bonding is studied in the model system [H2P(OH)AuCl]2 and [H2P(OH)AuPH2(O)]2. The two interactions are found to be comparable. The possible non-additivity of the aurophilic, ...
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(Nature Researchsubscriptions@nature.com, 2020)
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(Marcel Dekker Inc., 1997)
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(2012)Most neurodegenerative diseases involve the accumulation of misfolded proteins in the nervous system. Impairment of protein degradation pathways such as autophagy is emerging as a consistent and transversal pathological ...
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(1979)Autoradiographic labelling has been employed to analyze the morphogenesis of the neostriatum. Pregnant rabbits received a single intraperitoneal injection of tritiated thymidine at different stages of gestation. Careful ...
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(2013)Background: Birds are important mobile link species that contribute to landscape-scale patterns by means of pollination, seed dispersal, and predation. Birds are often associated with habitats modified by small mammal ...
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(2004)Depending on the mosaic of habitats that is created, forest fragmentation can reduce the abundance and diversity of forest birds. Temperate deciduous forests in South America are rapidly being replaced by pine plantations, ...
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(Wiley & Sons, 2016)The optic tectum in birds and its homologue the superior colliculus in mammals both send major bilateral, nontopographic projections to the nucleus rotundus and caudal pulvinar, respectively. These projections originate ...
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(Pergamon Journals LId, 1986-11-11)The stem bark of Oxandra ef. major, whieh eontains large amounts of 7,7'-bisdehydroaporphine alkaloids, has also yielded three eommonplaee steroids, retieuline, four known aporphinoids and the new azafluorenones darienine, ...
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(Chemical Society, 1986-05-13)The structure elucidation of dragabine (1) and nordragabine (2), the first derivatives of the novel azahomoaporphine skeleton, isolated from Guatteria sagotiana and Meiogyne virgata (Ann¡onaceae), is reported.
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(Sociedad Chilena de Quimica, 2001)In addition to azorellanol a new diterpenoid 7-deacetylazorellanol, has been isolated from the aerial parts oiLaretia acaulis (Cav.) Gill et Hook (Umbelliferae). Its structure was based on spectroscopic comparison with ...
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(Elsevier Ltd, 1998)A new diterpenoid, azorellanol (5), was isolated from the whole plant of Azorella compacta (Umbelliferae). The stricture was established by using mainly one- and two-dimensional NMR techniques, whereas the absolute ...
