Browsing by Title Facultad de Ciencias
Now showing items 5489-5508 of 8170
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(1991)The secondary metabolise 2,4-dihydroxy-1,4-benzoxazin-3-one (DIBOA) was found in seedlings of wild Hordeum species, but not of cultivated barley (Hordeum vulgare). DIBOA levels correlated negatively with performance of the ...
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(SOC BIOLGIA CHILE, 2008)The secretion of proteinaceous toxins is a widespread characteristic in environmental and laboratory yeast isolates. a phenomenon called "killer system". The killer phenotype (K+) call be encoded by extrachromosomal genetic ...
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(European Association for Aquatic Mammals, 2017)
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(Elsevier Ltd, 2015)© 2014 Elsevier Ltd. Levels, congener profiles of PCDD/Fs, DL-PCBs and human exposure for these xenobiotics never have been reported in Chile. For that purpose 102 raw cow milk samples were collected from seven different ...
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(Elsevier B.V., 2011)Non-relativistic DFT (PW91, PBE, PB86) geometry optimizations followed by relativistic ZORA single point energy calculations on the neutral hexafluoride complexes of the series of actinides U, Np, Pu, Am, Cm, Bk, Cf, Es, ...
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(Elsevier, 2011-04-29)Non-relativistic DFT (PW91, PBE, PB86) geometry optimizations followed by relativistic ZORA single point energy calculations on the neutral hexafluoride complexes of the series of actinides U, Np, Pu, Am, Cm, Bk, Cf, Es, ...
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(Oxford University Press, 2016-04)A growing body of evidence showing that individuals of some social species live in non-kin groups suggests kin selection is not required in all species for sociality to evolve. Here, we investigate 2 populations of Octodon ...
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(1999)Olfactory chemotransduction involves a signaling cascade. In addition to triggering transduction, odors suppress ion conductances. By stimulating with brief odorant pulses, we observed a current associated with odor-induced ...
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(Soc. Amer. Archaeology, 2015)Smoking pipes found in funerary contexts on the Atacama Desert coast suggest that the custom of smoking was widespread among hunter-gatherers and fishermen during the Formative (1500 B.C.- cal A.D. 1000). The substances ...
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(Springer New York LLC, 1998)Volatiles from wheat and oat seedlings elicited attraction in apterae and alatae Rhopalosiphum padi. Cereal volatiles were identified by GC-MS and olfactometric tests were performed with each compound. Attraction of aphids ...
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Olfactory conditioning in mate searching by the parasitoid Aphidius ervi (Hymenoptera: Braconidae) (Cambridge University Press, 2008)Despite the fact that insect learning capacity has been broadly demonstrated, the role that this process plays during mate searching has been scarcely explored. We studied whether the sexual behaviour of a male parasitic ...
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(WILEY-BLACKWELL, 2010-06-21)Based on their effect on prey populations, predators can interact synergistically, additively, or antagonistically. Predator attraction by semiochemicals in response to herbivory is well documented; however, the possibility ...
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(2004)The ciliated receptor neurons of fish olfactory organs are thought to transduce amino acids through a cAMP-dependent transduction pathway, but direct physiological evidence for this hypothesis remains scarce and is confined ...
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(Universidad de Chile, 2016)
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(1993)Oligosaccharides of different sizes were released from intact Citrus limon seedlings treated with endopolygalacturonase obtained from Alternaria alternata. Also, an increase of phenylalanine ammonia lyase (PAL) activity ...
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(Wiley, 2020)In this paper, we study a new class of functions, which we call (omega, c)-asymptotically periodic functions. This collection includes asymptotically periodic, asymptotically antiperiodic, asymptotically Bloch-periodic, ...
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(RESILIENCE ALLIANCE, 2008-12)The biocultural conservation and research initiative of Omora Ethnobotanical Park and the UNESCO Cape Horn Biosphere Reserve was born in a remote part of South America and has rapidly expanded to attain regional, national, ...
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(1997)We introduce the notion of (h,k) manifolds and give conditions under which the property of being a manifold with asymptotic phase holds. These conditions allow the construction of a transformation of the variational equation ...
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(Elsevier Science Ltd, 1999)Hartman's linearization theorem for ordinary differential equations states that a 1:1 correspondence exists between solutions of a linear autonomous system and those of a perturbed system as long as the perturbation term ...