Browsing by Title Artículos de revistas
Now showing items 1364-1383 of 4967
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(Universidad de Concepcion, 2011)Pollinators are able to discriminate among different floral phenotypes. Thus, flowers more attractive to pollinators usually receive more visits to their reproductive structures. However, this effect of attraction does not ...
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(BLACKWELL, 2006-11)Correlation among phenotypic traits may be explained by correlational selection, the simultaneous selection of more than one trait, or by genetic and/or developmental factors. In Escallonia myrtoidea, a tree with scented ...
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(Blackwell Publishing, 2008-05)Aim We evaluated the bathymetric gradient of benthic polychaete species richness from the Chilean coast, as well as its possible underlying causes. We tested three possible hypotheses to explain the richness gradient: ...
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(Soc. Botánica México, 2021)Background: The use of wild plants depends on a number of sociocultural and ecological factors, such as the ease of access to natural environments. This limitation for urban inhabitants leads to differences in the knowledge ...
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(American Chemical Society, 2020)The factors governing bacterial adhesion to substrates with different topographies are still not fully identified. The present work seeks to elucidate for the first time and with quantitative data the roles of bacterial ...
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Does digestion rate affect diet selection? A study in Octodon degus, a generalist herbivorous rodent (Springer Verlag, 1998)Dietary chemistry and an animal digestive physiology should be considered in any explanation of behavioral patterns of food use, as both influence dietary preference. In the degu Octodon degus (Molina, 1782), a generalist ...
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(American Institute of Physics, 2020)We study the impact of deserting a pre-established path, determined by a navigation software, on the overall city traffic. To do so, we consider a cellular automaton model for vehicular traffic, where the cars travel ...
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(Springer, 2010)Pollinator-mediated selection is one of the most important factors driving adaptation in flowering plants. However, as ecological conditions change through habitat loss and fragmentation, the interactions among species ...
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(Springer, 2020)For a prey, its best ticket to stay alive is to get early and accurate information on predation risk and so, escape from predation at low cost. Some prey species have evolved the ability to eavesdrop signals intended for ...
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(Association of Field Ornithologists, 2004)Cover at nesting sites selected by breeding birds can reduce the risk of nest predation. Using artificial nests, we tested whether dense cover reduces nest predation upon understory birds (rhinocryptids) in temperate forest ...
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(Public Library Science, 2016)Herbivory has been long considered an important component of plant-animal interactions that influences the success of invasive species in novel habitats. One of the most important hypotheses linking herbivory and invasion ...
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(Elsevier, 2016)Variation in the facial width-to-height ratio (fWHR) maps onto a number of behavioral and psychological traits among men (e.g., aggression, unethical behavior, negotiation performance). Importantly, observer judgments of ...
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(Springer, 2020)In high-mountain habitats, summer frost events can have negative consequences for plant fitness. Despite this, most studies have evaluated the consequences of frosts for vegetative structures of perennial plants, and neither ...
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(COLD SPRING HARBOR LAB PRESS, 2007-08)FtsZ has two domains, the amino GTPase domain with a Rossmann fold, and the carboxyl domain that resembles the chorismate mutase fold. Bioinformatics analyses suggest that the interdomain interaction is stronger than the ...
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(2003)The binding of MgATP and fructose-6-phosphate to phosphofructokinase-2 from Escherichia coli induces conformational changes that result in significant differences in the x-ray-scattering profiles compared with the unligated ...
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(Centers Disease Control & Prevention, 2022)Dissemination of carbapenemase-encoding plasmids by horizontal gene transfer in multidrug-resistant bacteria is the major driver of rising carbapenem-resistance, but the conjugative mechanics and evolution of clinically ...
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(Elsevier, 2003)The petrosal ganglion (PG) provides sensory innervation to the carotid sinus and carotid body through the carotid (sinus) nerve (CN). Application of either acetylcholine (ACh) or adenosine 5′-triphosphate (ATP) to the PG ...
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(1999)We have recently reported that application of acetylcholine (ACh) or nicotine to the petrosal ganglion - the sensory ganglion of the glossopharyngeal nerve - elicits a burst of discharges in the carotid nerve branch, ...
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(Elsevier Science Inc., 1998-07-07)The dopaminergic and antioxidant properties of pukateine [(R)-11-hydroxy-1,2-methylenedioxyaporphine, PUK], a natural aporphine derivative, were analyzed in the rat central nervous system. At dopamine (DA) D1 ([3H]-SCH ...