Browsing by Title Artículos de revistas
Now showing items 2135-2154 of 2801
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(Elsevier, 2013)Diels–Alder cycloaddition of 8,8-dimethylnaphthalene-1,4,5(8H)-trione with diastereomeric hydroxysulfinyldienes proceeded with high yields and good p-facial and regioselectivities. The hydroxysulfoxide moiety controls ...
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(TAYLOR & FRANCIS INC, 2008)Grainless stalk of corn (GLSC) was tested for removal of Cr(VI) and Cr(III) from aqueous solution at different pH, contact time, temperature, and chromium/adsorbent ratio. The results show that the optimum pH for removal ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-06)This is a communication on the removal of copper(II) ions from a residual mine water using an emulsified liquid membrane (ELM). The membrane was prepared by dissolving the extractant LIX-860 (a salicylaldoxime), used as a ...
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(1991)A simple device for an efficient waste water treatment is described. The procedure uses a massive microalga culture as a source of OH-, which increases the pH of the medium killing the bacterial population. In the device ...
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(ELSEVIER, 2008-11-03)The removal of Cd(II) and Cu(II) ions from aqueous solutions was studied by sorption onto microcapsules prepared by copolymerizing ethylene glycol dimethacrylate (EGDMA) and styrene (ST). The microcapsules were prepared ...
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(1997)We studied the effects of chronic exposure to malathion in the kidney of Octodon degus, a caviomorph whose habitat may be exposed to pesticides currently used in Chilean agriculture. A group of adult female animals received ...
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(Elsevier, 2013)Fluoxetine is currently being administered for long-term maintenance and for prophylactic reasons following the remission of depressive symptoms and several other psychiatric and neurological conditions. We have previously ...
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(AMER CHEMICAL SOC, 2006-07-05)The results presented here show that elementary design enhancements have led to a 20-fold increase in the cellular uptake properties of a Pro-rich cell-penetrating peptide. These results are relevant not only due to the ...
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(SOCIEDAD CHILENA DE QUIMICA, 2005-12)The catalysis of the hydroesterification and hydroformylation-acetalization of 1-hexene by rhodium(I), cis-[Rh(CO)2(amine)2](PF6) complexes (amine = pyridine, 2-picoline, 3-picoline, 4-picoline, 3,5-lutidine or 2,6-lutidine) ...
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(Springer, 2022)Santiago, capital city of Chile, presents air pollution problems for decades mainly by particulate matter, which significantly affects population health, despite national authority efforts to improve air quality. Different ...
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(Elsevier, 2018-04)The aim of this review was to understand the research that has been conducted in South American countries to detect or quantify major water and foodborne pathogens, with the aim of identifying advancements and gaps in food ...
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(1996)A study was done of seasonal variations of pesticide contents in waters of the Aconcagua river basin and Aromos dam in the V Region of Chile by solid phase extraction (SPE) and Chromatographic determination with GC-ECD, ...
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(The Williams & Wilkins Co., 1978)
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(SOCIEDAD CHILENA DE QUIMICA, 1997-12)We report the reaction of gallic acid with chloroacetic acid and three equivalents of sodium hydroxide. In this reaction, 2,6-dihydroxy-4-carboxyphenoxyacetic acid (A) is produced instead of 2,3-dihydroxy-5-carboxyphenoxyacetic ...
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(Elsevier, 2018)Oleuropein is a phenolic compound that is present in fruits and olive tree leaves, which has shown enormous health benefits. This study aimed to assess the effects of the baking and boiling cooking methods and the ...
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Revealing Monoamine Oxidase B Catalytic Mechanisms by Means of the Quantum Chemical Cluster Approach (Amer Chemical Soc, 2015)Two of the possible catalytic mechanisms for neurotransmitter oxidative deamination by monoamine oxidase B (MAO B), namely, polar nucleophilic and hydride transfer, were addressed in order to comprehend the nature of ...
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(Blackwell Publishing, 1997)Intrahepatic cholestasis of pregnancy is characterized by skin pruritus and a biochemical cholestasis of mild to moderate severity appearing during pregnancy (mainly in the third trimester) and disappearing after delivery. ...
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(2009)The gall wasp genus Paraulax (Hymenoptera, Cynipidae) associated with southern beeches (Nothofagus (Nothofagaceae)) from South America is revised. The genus Paraulax and its type species, P. perplexa, are redescribed and ...
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(Elsevier Inc., 2017)© 2017 Elsevier Inc. American Trypanosomiasis is a chronic infection discovered and described in 1909 by the Brazilian scientist Carlos Chagas. It is caused by the protozoan parasite Trypanosoma cruzi. Although it affects ...
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(MDPI, 2020)This study explores the molecular structuring of salmon gelatin (SG) with controlled molecular weight produced from salmon skin, and its relationship with its thermal and rheological properties. SG was produced under di ...
