Browsing by Title Facultad de Ciencias
Now showing items 775-794 of 8178
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(Institute of Electrical and Electronics Engineers Inc., 2020)
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(Elsevier, 2014)The transition from elastic to plastic behaviour in single crystal copper nanowires under uniaxial tensile stress at different concentrations of silver (0.0–0.5 at.% Ag) and at different temperatures (0.1, 100, and 300 ...
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(2014)The transition from elastic to plastic behaviour in single crystal copper nanowires under uniaxial tensile stress at different concentrations of silver (0.0-0.5 at.% Ag) and at different temperatures (0.1, 100, and 300 K) ...
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(Elsevier, 2014)The melting and soldering processes of two iron filled carbon nanotubes is explored by means of classical molecular dynamics, in order to develop an understanding of the underlying mechanisms that govern the dynamics of ...
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(SPRINGER, 2010-04)A study of the vibrational density of states (DOS) of c-Al2O3 is presented. Four structural models from the recent literature are considered: vacant spinel model and three nonspinel models. The vacant spinel and one ...
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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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(Universidad de Chile., 2000)La evolución de la situación ambiental en el pais introdujo nuevas necesidades y desafíos a las empresas, tales como el enfrentar de manera estratégica e integral e1 tema del medio ambiente, a fin de desarrollar sus ...
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(Universidad de Chile, 2022)Dado los problemas de contaminación que experimentamos, fuentes de energía eléctrica amigables con el medio ambiente han despertado interés en la comunidad científica. Una de ellas corresponde al uso de celdas fotovoltaicas ...
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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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(Universidad de Chile., 1979)
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(Nature Researchsubscriptions@nature.com, 2020)
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(Universidad de Chile, 2001)Estudiarnos la localización de un electrón o excitación en redes tight-bi.nd,ing debida a la interacción con fonones, usando el modelo cuántico de Holstein, o a efectos nolineales locales modelados con la ecuación de ...
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(1977)El objetivo de nuestro trabajo es, en primer lugar, completar el cálculo de Pµ (b) verificando si la parte finita es correcta. Además nos interesa extender estas consideraciones al caso del momento angular ligado Mµ v ...