Artículos de revistas: Recent submissions
Now showing items 4521-4540 of 4968
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(BLACKWELL PUBLISHING, 2008-03)Parasites can reduce host fitness through short-term mortality, complete or partial castration, or slight reductions in host fecundity. Hosts may reduce reproductive effort as an adaptive strategy to tolerate parasitism. ...
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(SPRINGER, 2007-03)Most studies on the fitness advantage of outbreeding in host–parasite systems have been assessed from the host rather than the parasite perspective. Here, we performed experimental pollination treatments to evaluate the ...
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(ELSEVIER SCI LTD, 2008-06)Ecological boundaries have been described as being multiscalar or hierarchical entities. However, the concept of the ecological boundary has not been explicitly examined in the context of hierarchy theory. We explore how ...
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(SPRINGER, 2008-11)In many developing countries, natural resource management is based on traditional, expert-based methods that often exclude a variety of stakeholders. This paper presents a conceptual model and methodology that represent ...
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(GAUTHIER-VILLARS/EDITIONS ELSEVIER, 2008-02)Plant traits may play multiple functional roles simultaneously. Leaf trichomes have been related to resistance against herbivores as well as to enhanced water economy in the plant. In a greenhouse study, we evaluated the ...
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(American Medical Association, 2008-02)Akey molecular pathway implicated in diverse neurodegenerative diseases is the misfolding, aggregation, and accumulation of proteins in the brain. Compelling evidence strongly supports the hypothesis that accumulation ...
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(DIRICHLET SERIES, 2008-01)The product ((Pi) over cap (m) a(m)) . ((Pi) over cap (m)b(m)) of two regularized products is not in general equal to the regularized product (Pi) over cap (m) (a(m) . b(m)) We consider the discrepancy F, defined by exp(F):= ...
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(SPRINGER HEIDELBERG, 2008-03)The bronchial tree of most mammalian lungs is a good example of an efficient distribution system whose geometry and dimensions of branched structures are important factors in determining the efficiency of respiration. Small ...
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(SPRINGER, 2008-04)Trichomycterus chungaraensis is an endemic and endangered fish from the south high Andean plateau; mainly due to its habitat total extension thus has been calculated to be 2,910 m2 and inhabiting solely in Mal Paso ...
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(Federation of European Biochemical Societies, Blackwell Publishing Ltd, 2008-07-10)In several archaea of the Euryarchaeota, the glycolytic flux proceeds through a modified version of the Embden-Meyerhof pathway, where the phosphofructokinase and glucokinase enzymes use ADP as the phosphoryl donor. These ...
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(SOC CHILENA QUIMICA, 2008-06)Thiourea and urea can modify their typical host properties to form new ternary polymolecular anionic halogen hosts in which the diquinuclidinium cation is included. A comparative study of the proton conductivity properties ...
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The production in vivo of microcin E492 with antibacterial activity depends on salmochelin and EntF (AMER SOC MICROBIOLOGY, 2008-08)Microcin E492 is a channel-forming bacteriocin that is found in two forms, namely, a posttranslationally modified form obtained by the covalent linkage of salmochelin-like molecules to serine 84 and an unmodified form. ...
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(Elsevier B.V, 2008-07-20)The Baeyer–Villiger oxidation of some aldehydes and ketones has been revised by using the electrophilicity as a descriptor of reactivity. The global electrophilicity index evaluated at the ground state of a series of ...
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(JOHN WILEY & SONS INC, 2008-05)The electronic structure and the spectroscopic properties of [Pt(NH3)4][Au(CN)2]2, [Pt(NH3)4][Ag(CN)2]2, [Pt(CNCH3)4][Pt(CN)4], and [Pt(CNCH3)4][Pd(CN)4] were studied at the HF, MP2, B3LYP, and PBE levels. In all ...
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(Elsevier B.V., 2008-09)The electronic structure and spectroscopic properties of [Hg3(o-C6F4)3]n {benzene} (n = 1, 2) were studied at the HF, MP2 and PBE levels. The interaction between [Hg3(o-C6F4)3] and benzene at the HF and MP2 levels was ...
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(ELSEVIER, 2008-02)The Southern Pacific Ocean coast has been traditionally considered a non-active transmission area for Chagas disease. In this report, we show evidence of Trypanosoma cruzi infection in the sylvatic kissing bug Mepraia ...
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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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(ELSEVIER, 2008-03-11)A humic acid (HA) extracted from lignite was successfully used in surface-enhanced Raman scattering SERS experiments as molecular occlusion assembler deposited onto a Ag colloidal surface to detect the polycyclic aromatic ...
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(AMER CHEMICAL SOC, 2008-12-25)The UV-vis absorption spectra of the photoreceptor chromophores biliverdin (BV) in the ZZZssa conformation and the phycocyanobilin (PCB) with conformations ZZZssa and ZZZasa have been investigated by means of time-dependent ...
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(Elsevier Ltd, 2008-09)The use of brainstorming techniques for the generation of conceptual models, as the basis for the integrated management of physical–ecological–social systems (PHES-systems) is tested and discussed. The methodology is ...
