Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 43821-43840 of 98946
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(American Chemical Society, 2001)The gold(I) compounds [Se(AuPPh3)2] and [Se{Au2(μ-dppf)}] (dppf = 1,1′-bis(diphenylphosphino)ferrocene) react with 1 and 2 equiv of [Au(C6F5)3OEt2] to give the mixed gold(I)-gold(III) derivatives [Se(AuPPh3)2{Au(C6 F5)3}n] ...
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(Cambridge University Press, 2001)We investigated the photocurrents from isolated rods of the South American anuran, Caudiverbera caudiverbera. Rod outer segments were on average 66.4 +/ - 11.2 mum (mean +/ - S.D, n = 104) in length and 6.6 +/ - 0.9 ...
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(Wiley, 2001)Th e Iroquoi s gene scod eforho- meodomai nprotein stha thav ebee nimplicated intheneura ldevelopmen tof Drosophil a an dver- tebrates .Wesho w her eforthefirs ttim ethat Xiro-1 ,on eofthe X ...
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(Marcel Dekker, 2001)The effect of the molecular weight and concentration of the compatibilizer maleic acid-alt-styrene copolymer (MAaS) on the compatibility behavior of incompatible poly(ethylene oxide)/poly(styrene) (PEO/PS) blends was studied ...
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(Taylor & Francis, 2000)Modification of Escherichia coli phosphofructokinase-2 (Pfk-2) with N- (1-pyrenil)maleimide results in an enzyme form that is inactive. However, the rate of modification is drastically reduced in the presence of the ...
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(Academic Press, 2001)Fast kinetic methods are used to measure reactions that take place in less time than required to mix the reagents manually and to measure the reaction by usual methods, like UV-visible spectrophotometry and fluorescence. ...
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(Springer, 2001)Resistance and tolerance are considered to be different plant strategies against disease. While resistance traits prevent hosts becoming parasitized or reduce the extent of parasitism, tolerance traits reduce the fitness-impact ...
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(Ecological Society of America, 2000)A two-year field study was conducted to evaluate the potential of two cactus species, Echinopsis chilensis and Eulychnia acida, to evolve defensive traits against the parasitic mistletoe Tristerix aphyllus (Loranthaceae). ...
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(Gordon Breach, 2000)Chemical modification of molybdenum disulfide based either in the restacking of the layered solid or the intercalation of lithium or organic donors as poly(ethylene oxide) or dialkylamines lends to products with improved ...
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(1999)Cell walls are crucial for development, signal transduction, and disease resistance in plants. Cell walls are made of cellulose, hemicelluloses, and pectins. Xyloglucan (XG), the principal load-bearing hemicellulose of ...
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(John Wiley, 1999)The basis-set dependence and quasirelativistic and nonrelativistic effects on the Au - C2H4 interaction are examined at the ab initio level. The effects on the interaction energies are modulated by f-type polarization ...
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(AAAS, 2000)OBJECTIVE: To explore the role of the NF - kappaB/Rel transcription factor family in autoimmunity, we investigated whet her peripheral blood mononuclear cells (PBMC) and T cells from the blood of patients ...
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(Natural Products, 2012)Four isoflavones, isolated from the whole plant of Azorella madreporica, were identified as angustone C (1), alpinumisoflavone (2), licoisoflavone A (3) and isolupalbigenin (4) by spectroscopic studies. The compounds were ...
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(1999)We present a simple non-radioactive cytometry-based assay that permits the simultaneous quantitation of cell adhesion of distinct subsets of cells contained in a mixture without any previous fractionation. The procedure ...
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(The Rockefeller University, 1999)Using Ba2 1 as a probe, we performed a detailed characterization of an external K 1 binding site located in the pore of a large conductance Ca2 1-activated K 1 (BKCa) channel from skeletal muscle incorporated into planar ...
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(Blackwell, 1999)Fitzroya cupressoides (alerce, Cupressaceae) is a large and exceptionally long-lived conifer, endemic to a restricted area of southern Chile and neighbouring areas of Argentina. As a result of its high economic value, ...
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(Springer, 2011)We generalize Weil's converse theorem to Jacobi cusp forms of weight k, index m and Dirichlet character χ over the group Γ0(N)⋉ℤ2. Then two applications of this result are given; we generalize a construction of Jacobi forms ...
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(Royal Soc Chemistry, 1991)As a step to increasing the reliability of the calculation of free energies underlying ion binding and transport in protein channels, free energy perturbation simulations have been performed for the binding of alkali-metal ...
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(2009)The absolute configuration of the pentacyclic ichthyotoxin stypotriol, a constituent of Stypopodium zonale, was deduced to be 3S,5R,8R,9R,10S,13S,14S-(-) -1 by vibrational circular dichroism spectroscopy of the derived ...
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(Elsevier Ltd, 1998)Calcium-activated potassium channels are fundamental regulators of neuronal excitability, participating in interspike interval and spike-frequency adaptation. For large-conductance calcium-activated potassium (BK) channels, ...
