Browsing by Title Artículos de revistas
Now showing items 1811-1830 of 2801
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(SOCIEDAD CHILENA DE QUIMICA, 2000-12)Time resolved near IR luminescence detection of singlet oxygen, O-2((1)Delta (g)), and steady-state photolysis experiments were performed to study in detail limitations and approaches involved when 9,10-dimethylanthracene ...
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(2012)The formation of paramagnetic species from oncocalyxone A in aprotic medium was confirmed by performing in situ electrochemical-electron spin resonance (E-ESR) experiments. The high delocalization of the radical generated ...
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(BioMed Central, 2014)The type VI secretion system (T6SS) is a virulence factor for many Gram-negative bacteria. Salmonella genus harbors five phylogenetically distinct T6SS loci encoded in Salmonella Pathogenicity Islands (SPIs) SPI-6, SPI-19, ...
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(Sociedad Chilena de Química, 1990)A partir de complejos amoniacales de Co(III) se sintetizaron compuestos que contienen los ligantes quirales L-aspartato y L-malato como segundo ligante. Los compuestos se identificaron por medio de análisis, mediciones de ...
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(Pergamon Press, 1985)The preparation of aminocomplexes of Co(III) containing D-ribose, L-sorbose or D-glucosamine as second ligand is described. Their spectral features and optical activity are reported. Formation in solution of complex ...
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(1975)Study of the visible absorption and circular dichroism spectra of mixed complexes formed by copper(II), an optically active amino acid anion and a phenanthroline or dipyridyl moiety, shows that although the absorption ...
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Optical activity of nickel(II) and copper(II) complexes with L-aminoacids in the UV spectral region (Elsevier Sequoia, 1972)Complexes of Cu(II) and Ni(II) with L-aminoacids have been prepared and their UV spectra and optical activity studied. The results are interpreted in terms of the conformation of the chelated rings. A molecular orbital ...
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(2009)In this work, we present the synthesis and optical study of the binuclear zinc(II) macrocyclic complexes, derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene (H2L). Two zinc macrocyclic complexes with different ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 1989)
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(MDPI, 2021)Green extraction was applied to Argentinean shortfin squid (Illex argentinus) viscera, consisting of a wet pressing method including a drying step, mechanic pressing, centrifugation of the resulting slurry, and oil ...
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(Blackwell Publishing Ltd, 2017)© 2017 Institute of Food Science and Technology This research was focused on the production of polyunsaturated fatty acid concentrates from a farmed rainbow trout (Oncorhynchus mykiss) by-product (i.e. belly muscle). The ...
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(Sociedad Chilena de Química, 2002)En este trabajo se demuestra que el uso del algoritmo correspondiente al índice de conectividad de valencia tridimensional corregido [Λ(q)], utilizado a un valor de exponente óptimo, produce un valor máximo para el índice ...
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(SOCIEDAD CHILENA DE QUIMICA, 2002-03)In this work one demostrates that the use of the algorithm corresponding to the corrected three-dimensional valence connectivity index [Lambda(q)], used at a value of optimal exponent, produces a maximun value for the ...
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(Elsevier, 2014)Cellular organelles do not function as isolated or static units, but rather form dynamic contacts between one another that can be modulated according to cellular needs. The physical interfaces between organelles are ...
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(Bentham, 2015)Organic and inorganic nanoparticles show great potential for cancer diagnosis and treatment. Because gastric cancer (GC) represents the second most deadly type of neoplasia worldwide, continued research efforts by scientists ...
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(TAYLOR & FRANCIS AS, 2007)It is well known that humified soil organic matter ( SOM) plays a central role in soil fertility due to its chemical and physical properties, especially by sustaining soil biological and related ecological equilibrium. ...
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(MARCEL DEKKER INC, 1997)Determinations were made of total soil organic matter (SOM), stable and labile organic fractions, biomass carbon (C), and chemical composition of several humus-soil-fractions in chilean volcanic soils, Andosols and Ultisols. ...
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(Pergamon Press Ltd, 1983)In fertilized and unfertilized plots of ten Chilean allophanic soils the fraction of total-P associated with organic matter and the organic carbon content were determined. Cultivation with P fertilization for 40 yr or ...
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(2005)A novel molecular tetrameric zinc cluster with phosphate bridges has been synthesized by a hydrothermal method and characterized by X-ray diffraction. The structure is stabilized by neutral H 3PO 4 and water molecules. ...
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(Elsevier, 2013)In the search for new therapeutic tools for the treatment of American trypanosomiasis, a series of novel ferrocene and cyrhetrene imine compounds, derived from 5-nitro-heterocycles, were designed, synthesized and ...