Artículos de revistas: Recent submissions
Now showing items 4261-4280 of 4968
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(SOC CHILENA QUIMICA, 2010-03-16)In this study, we compared four glassy carbon electrodes modified with adsorbed porphyrins of cobalt containing one, two, three, or four bis(methoxyphenyl) groups as substituents of the ligand. The aim of this work was ...
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Percolation of influenza AH1N1 epidemic in the world: Usefulness of the spatial-connectivity models (SOC. MEDICA SANTIAGO, 2010-03-31)The 2009 AH1N1 epidemics expanded rapidly around the world by the current connectivity conditions. The spread of epidemics can be described by the phenomenon of percolation, that allows the estimation of the threshold ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2010-01-27)Arginine amino acid (Arg) has been vibrationally studied through its infrared, Raman and surfaceenhanced Raman scattering (SERS) spectra, and theoretical calculations. Net charge is used to predict the possibility to ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2010-05-02)Several isolates of three Fusarium species associated with the Gibberella fujikuroi species complex were characterized for their ability to synthesize gibberellins (GAs): Fusarium sacchari (mating population B), Fusarium ...
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(ELSEVIER SCIENCE BV, 2010-05-02)Acetylcholine and ATP appear to mediate excitatory transmission between receptor (glomus) cells and the petrosal ganglion (PG) neuron terminals in the carotid body. In most species these putative transmitters are excitatory, ...
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(WILEY-BLACKWELL PUBLISHING, INC, 2009-08)The history of conifers introduced earlier elsewhere in the southern hemisphere suggests that recent invasions in Argentina, Brazil, Chile and Uruguay are likely to increase in number and size. In South Africa, New Zealand ...
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(SPRINGER, 2010-02-17)Natural products are recognized as an important source of new and better pharmaceuticals for the treatment of diseases such as tuberculosis. The azorellane and mulinane diterpenoids represent an interesting group of ...
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(AMER MATHEMATICAL SOC, 2010-04-02)We extend the Bargmann transform to the magnetic pseudodifferential calculus, using gauge-covariant families of coherent states. We also introduce modulation mappings, a first step towards adapting modulation spaces to ...
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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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(SPRINGER, 2010-03-15)We show the importance of considering the detailed local distributions of oxygen atoms around tellurium in CdTeOx glasses when interpreting X-ray photoemission experiments. We perform first principles calculations of ...
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(SPRINGER, 2010-05-15)Molecular dynamic (MD) simulations, both classical and ab initio, of amorphous GeO2 (germania), Al2O3 (alumina), and CdTeO compounds are presented. We focus our attention on the structural and vibrational properties, ...
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(ELSEVIER SCIENCE BV, 2010-06-18)Aloe barbadensis Miller, known as Aloe Vera, requires limited irrigation depending on the capacity of the soil to retain humidity, since it is a CAM species and thus naturally adapted to conditions of dryness and high ...
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Characterization of sodium alginate and its block fractions by surface-enhanced Raman spectroscopy (JOHN WILEY & SONS LTD, 2009-10-23)The surface-enhanced Raman scattering (SERS) of sodium alginates and their hetero- and homopolymeric fractions obtained from four seaweeds of the Chilean coast was studied. Alginic acid is a copolymer of β-D-mannuronic ...
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(AMER SOC TROP MED & HYGIENE, 2010-04-19)We identified and followed-up for two years Octodon degus rodents infected with Trypanosoma cruzi genotypes by using xenodiagnosis with two vector species ( Mepraia spinolai and Triatoma infestans ), polymerase chain ...
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(JAPAN SOC ANALYTICAL CHEMISTRY, 2010-08-10)The simultaneous determination of albendazole (ABZ) and praziquantel (PZQ) was performed by different mathematical approaches: second derivative spectrophotometry (SDS), classical least squares, regression of partial least ...
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(WILEY-LISS, DIV JOHN WILEY & SONS INC, 2010-05-24)Patterns of cytoplasmic movements and organization of transport pathways were examined in live or fixed zygotes and early zebrafish embryos using a variety of techniques. The zygote blastodisc grows by accumulation of ...
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(ELSEVIER SCIENCE BV, 2010-05-19)Bud-break in grapevines (Vitis vinifera L) can be poor and uneven in locations that have warm winters with insufficient chilling. Growers in these regions use hydrogen cyanamide (HC), a dormancy-breaking compound, to ...
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(SOC BIOLGIA CHILE, 2009-12-17)Trabajos tempranos basados en la teoría de Sistemas Dinámicos, demostraron que mientras mayor sea el número de poblaciones en interacción ecológica, el sistema tiende a ser más inestable. Sin embargo, la evidencia ...
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(ELSEVIER SCI LTD, 2009-07-25)A review of the fundamental physical processes in the planetary–exoplanetary environment is presented, with emphasis on nonlinear phenomena. First, we discuss briefly the detection of exoplanets and search for radio ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2010-02-26)‘Superclones’ are predominant and time-persistent genotypes, exhibiting constant fitness across different environments. However, causes of this ecological success are still unknown. Therefore, we studied the physiological ...
