Browsing by Title Artículos de revistas
Now showing items 4837-4856 of 4968
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(Elsevier, 2019)Peatlands are key reservoirs of belowground carbon (C) and their monitoring is important to assess the rapid changes in the C cycle caused by climate change and direct anthropogenic impacts. Frequently, information of ...
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(2006)The distribution and habitat use by carnivores can be assessed by studying their tracks or feces. If these methods are to be used confidently, they should not only unequivocally discriminate among species, but should ...
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(Taylor & Francis, 2015)The increased frequency and magnitude of natural disasters is producing a growing awareness of the need to incorporate mental well-being and resilience into policy and practice. The present research uses mental well-being ...
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(CAMBRIDGE UNIV PRESS, 2009-01-20)Studies of recruitment dynamics in meroplanktonic organisms are dependent on the correct identification of each ontogenic stage of each species. This is particularly difficult when studying the larval stages, which are ...
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(2013)It is widely recognized that macroecological patterns are not independent of the evolution of the lineages involved in generating these patterns. While many researchers have begun to evaluate the effect of ancestor-descendant ...
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(Universidad Técnica del Estado, 1972-07)Se describe el uso de brebajes preparados con tallos de Banisteriopsis y hojas de Psychotria por la tribu de los Shipibos y en la ciudad de [quitos. El análisis de una muestra de la especie de Banisteriopsis usada, ...
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(Escuela de Ciencias del Mar, 2017)© 2017, Escuela de Ciencias del Mar. All Right Reserved.The Patagonian toothfish or Chilean sea bass (Dissostichus eleginoides), found in the Southern Ocean surrounding Antarctica, is an important fishery species for Chile. ...
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(2010)The present study shows the formation and characterization of the ionic-pair between the antibiotic oxytetracycline and the dye crystal violet in ammonia solution pH 9.0 ± 0.2 extracted into chloroform. The characterization ...
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(2010)The present study shows the formation and characterization of the ionic-pair between the antibiotic oxytetracycline and the dye crystal violet in ammonia solutionpH9.0±0.2 extracted into chloroform. The characterization ...
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(Birkhäuser-Verlag, 1979)
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(ELSEVIER SCI LTD., 2006-03-29)We report here the protective effect against piscirickettsiosis elicited in fish by a mixture of recombinant proteins. A comparative genomics strategy was used on a genomic library of Piscirickettsia salmonis in order to ...
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(2009)Determination of fecal steroid metabolites is a noninvasive technique that characterizes the physiological state of organisms without the physiological and psychological stress of handling. Although this technique has many ...
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(American Oil Chemists' Society, 1996)The induction periods for the peroxidation of various fish oils at 55-90°C were studied by the Rancimat test. The natural logarithms of the induction periods varied linearly with respect to temperature, with a mean coefficient ...
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(American Chemical Society, 1999)Molecular vibrations in ammonia (NH3) and hydrogen sulfide (H2S), and internal rotations in hydrogen peroxide (HOOH), hydrogen thioperoxide (HSOH), hydrogen persulfide (HSSH), and ethylene (C2H4) are studied using ab initio ...
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(1989)We compare values of time obtained with linear utility functions used in LOGIT and HIERARCHICAL LOGIT specifications of a nine-mode passenger choice model estimated with disaggregate data from Santiago, Chile, and find ...
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(2007)We report the comparative structural-vibrational study of nanostructures of nanourchins, nanotubes, and nanorods of vanadium oxide. The tube walls comprise layers of vanadium oxide with the organic surfactant intercalated ...
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(2001)Infrared (middle and far) and Raman spectroscopy were used to study the adsorption of vanadylnaphthalocyanine and vanadylporphine tetraphenyl substituted macrocycles adsorbed onto metallic surfaces. The IR spectra of the ...
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(Springer, 2013)Rationale Neuronal nicotinic acetylcholine receptors (nAChRs) are pharmacological targets that have recently been implicated in the reinforcing effects ofmany drugs of abuse, including ethanol. Varenicline and cytisine ...
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(Entomological Society of America, 1997)Aphid genotype has been shown to be a source of variability in the induction of phytochemical responses in wheat after aphid infestation as well as in their performance on wheat lines. Two clones of the aphid Sitobion ...
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(2012)Phylogenetic diversity (PD) is commonly calculated by adding together the branch lengths or ages of a subset of taxa present in an area, using a single phylogeny as a backbone. However, a phylogenetic hypothesis is the ...