Browsing by Title Artículos de revistas
Now showing items 2499-2518 of 4968
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(AMER SOC CELL BIOLOGY, 2017)
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(2012)The karyotype of fifteen Leucocoryne taxa was studied, assessing characteristics such as chromosome morphology and size, secondary constriction location, and asymmetry level. Two groups of Leucocoryne taxa were described ...
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(Oxford University Press, 1981)Liolaemus monticola, Müller and Hellmich, is a highly variable, endemic montane species distributed along the temperate Andes in Chile. The subspecies (Müller and Hellmich) karyotypes established from their type localities ...
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(2004)The steps involved in kaurenolide and fujenoic acids biosynthesis, from ent-kauradienoic acid and ent-6α,7α-dihydroxykaurenoic acid, respectively, are demonstrated in the gibberellin (GA)-deficient Gibberella fujikuroi ...
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(1997)The present investigation was designed to explore the influence of estrous cycle phase, ovariectomy, and estradiol replacement on the behavioral effects of the 5-HT2 receptor antagonist, ketanserin. The parameters under ...
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(Blackwell Publishing Ltd, 2018)© 2018 The Royal Entomological Society 1. Insects exhibiting parental care usually can discriminate between kin and non-kin individuals, allowing parents to avoid investment in foreign offspring. 2. This study investigated ...
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(1976)Functional micelles of hexadecyl(2-hydroxyethyl)dimethylammonium bromide (I) are better catalysts than hexadecyltrimethylammonium bromide (CTABr) for the alkaline hydrolysis of diethyl and di-n-hexyl p-nitrophenyl phosphate ...
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(1965)Apyrase from potato extracts has been purified 200-fold by two different procedures; both procedures furnish an apyrase which splits ATP faster than ADP. By using P32-labeled substrates, it was possible to demonstrate that ...
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(2003)The kinetic mechanism of rat liver hexokinase D (‘ glucokinase’) was studied under non-co-operative conditions with 2- deoxyglucose as substrate, chosen to avoid uncertainties derived from the co-operativity observed ...
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(1984)The number and nature of glucose-phosphorylating enzymes of rat intestinal mucosa were investigated by chromatographic, electrophoretic, and kinetic methods. Three fractions with glucose-phosphorylating activity were ...
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Kinetics and mechanism of the reaction of a nitroxide radical (tempol) with a phenolic antioxidant (2003)In the absence of redox-active transition metal ions, the removal of Tempol by Trolox occurs by a simple bimolecular reaction that, most probably, involves a hydrogen transfer from phenol to nitroxide. The specific rate ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-11)Copper was removed from an acidic mine drainage (AMD) using a liquid emulsion membrane contactor. The acidic drainage was a harmful natural acidic solution generated by bioleaching and chemical leaching of copper and iron ...
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(1992)The ordering behaviour in quenched αCu-Al was investigated by differential scanning calorimetry (DSC) under rising temperature conditions and by electron diffraction. It was found that the ordering processes can be better ...
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(Frontiers Media, 2016)Due to the developing of multi-resistant and invasive hypervirulent strains, Klebsiella pneumoniae has become one of the most urgent bacterial pathogen threats in the last years. Genomic comparison of a growing number of ...
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(Royal Society of Chemistry, 2020)Lyotropic liquid crystals (LLCs) are mixtures of amphiphile molecules usually studied as mimetic of biological membrane. The equilibrium dynamics of tetradecyltrimethyl ammonium cation (TTA(+)) molecules forming nematic ...
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(Sociedad de Neurología, Psiquiatría y Neurocirugía, 2010-03-03)El constante aumento en la expectativa de vida en la población mundial ha incrementado la preocupación hacia la búsqueda de la comprensión de la Enfermedad de Alzheimer (EA), así como de su diagnóstico temprano y tratamiento. ...
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(1990)The extract of the aerial parts of Gutierrezia espinosae gave 11 new and two known labdanes as well as five new nerylgeraniol derivatives. The structures were elucidated by high field 1H NMR spectroscopy. The chemotaxonomic ...
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(2002)A chemical study of aerial parts of Haplopappus illinitus afforded five labdane diterpenoids whose structures were elucidated by high field NMR spectroscopy and 2D techniques. Four of them are dicarboxylic acids previously ...
