Browsing by Title Facultad de Ciencias
Now showing items 835-854 of 8177
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(2002)To facilitate a rational basis set selection for B3LYP studies of organic reactions in the interstellar medium, we analyzed energetic parameters for the main stationary points in the reaction HN=CH2 + •C≡N → H2N-C(•)H-C≡N ...
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(Elsevier, 1999)In this work, the basis set superposition error (BSSE) has been analyzed for the systems Cu2, Cu3, Cu6 and Cu13 as prototypes of metallic clusters. Various basis sets have been tested. In addition, pseudopotentials of 1- ...
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(Kluwer Academic Publishers, 1977)The dietary composition of the antarctic fish Notothenia gibberifrons Lönnberg in a depth gradient was studied, from sea level until 200 meters in South Bay, Doumer Island, West Antarctic. The diet of this species varied ...
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(CELL PRESS, 2009-03-27)Adaptation to endoplasmic reticulum (ER) stress depends on the activation of an integrated signal transduction pathway known as the unfolded protein response (UPR). Bax inhibitor-1 (BI-1) is an evolutionarily conserved ...
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(Universidad de Chile, 2009)The endoplasmic reticulum (ER) is an essential organelle for protein folding and secretion. Different conditions alter its functioning promoting the accumulation of misfolded proteins at its lumen, a condition referred ...
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(Springer, 2015)In this work we review the formalism used in describing the thermodynamics of first-order phase transitions from the point of view of maximum entropy inference. We present the concepts of transition temperature, latent ...
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(Universidad de Chile, 2010)El castor (Castor canadensis) fue introducido al archipiélago de Tierra del Fuego en 1946. En su hábitat nativo, la riqueza y abundancia cie especies de aves acuáticas en pozones de castor es mucho mayor que en arroyos y ...
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(1992)The solubility behavior in water of different salts of cetyltrimethyl ammonium (CTA+), such as iodide (CTAI), thiocyanate (CTASCN), and perchlorate (CTAClO4), is reported. The order of solubilities is CTASCN > CTAI > ...
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(1990)The behavior of dental tissues from the rabbit, Oryctolagus cuniculus, in association with epithelium from the quail, Coturnix coturnix japonica, has been examined. Adult and embryo rabbits were employed in this study. ...
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(IOS Press, 2018)Alzheimer's disease (AD) is the most frequent type of dementia in the elderly, severely affecting functional and executive skills of subjects suffering from this disease. Moreover, the distress of caregivers as well as the ...
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(Universidad de Chile., 2018-10)
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(2002)The exact mechanism of cell death in neurodegenerative diseases remains obscure, although there is evidence that their pathogenesis may involve the formation of free radicals originating from the oxidative metabolism of ...
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(Elsevier, 2019)Triadimefon (TDF) is a triazole fungicide extensively used in agriculture that has been found as a pollutant in numerous water sources. In mammals, it inhibits monoamine uptake through binding to the dopamine transporter, ...
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(AMER PSYCHOLOGICAL ASSOC, 2010-06-30)3,4-methylenedioxymethamphetamine (MDMA; “ecstasy”) is a psychoactive drug structurally related to other phenylisopropylamines acting as stimulants or hallucinogens in humans. Although MDMA has a pharmacological identity ...
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(2012)Cephalopods have two main defence strategies: the first consists on reducing the odds of being detected by a predator, while the second focuses on avoiding capture. The aim of this study was to understand the basic behavioural ...
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(Springer, 2013)The invasion or expansion of non-native species into new geographic areas can pose a major threat to the conservation of biodiversity. These threats are augmented when the newly-arrived species interacts with native ...
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(2002)The Palaeoarctic parasitoid Aphidius ervi Haliday (Hymenoptera, Aphidiidae) parasitises legume aphids in its region of origin. In Chile, it parasitises both legume and cereal aphids. This special situation was studied at ...
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(2005)Host plant selection and acceptance by aphids involves four consecutive steps: (1) prealighting behaviour, (2) leaf surface exploration and probing of subepidermal tissues, (3) deep probing of plant tissues, and (4) ...
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(2001)The effects of parasitisation by Aphidius ervi on the thermoregulatory behaviour of the pea aphid Acyrtosiphon pisum were studied in alfalfa fields and in an experimental thermal gradient. In the field, mummies were found ...