Browsing by Title Artículos de revistas
Now showing items 3081-3100 of 4968
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(Elsevier, 2016)We investigate the propagation dynamics of highly localized discrete breather modes in a weak ferromagnetic spin lattice with on-site easy axis anisotropy due to crystal field effect. We derive the discrete nonlinear ...
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(Elsevier Ltd, 2017)© 2017 Elsevier B.V. In this work, the linear and nonlinear optical properties of a series of octupolar Zn(II) complexes with highly aromatic polypyridine ligands are investigated. The effect of the metal center on the ...
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(2005)We examine the formation of bound states on a generalized nonlinear impurity located at or near the beginning (surface) of a linear, tight-binding semi-infinite lattice. Using the formalism of lattice Green functions, we ...
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(2006)We examine the formation of localized states on a generalized nonlinear impurity located at or near the surface of a semi-infinite two-dimensional (2D) square lattice. Using the formalism of lattice Green functions, we ...
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(Elsevier, 2020)We prove that a linear nonautonomous differential system with nonuniform hyperbolicity on the half line can be written as diagonal system with a perturbation which is small enough. Moreover we show that the diagonal terms ...
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(Universidad de Cadiz, 2017)The present study, based on 54 co-constructed narratives of couples living in Santiago de Chile, investigates patterns of nonverbal regulators in structural sequences initiation of conversation narratives in relation to ...
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(1981)Normal coordinate analysis of C3Cl4and C3I4has been carried out on the basis of general valen ce force field, using Wilson's FG matrix method. Approximate vibrational frequencies are calculated from very simple force field ...
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(1986)A normal coordinates analysis for the M(NH3)42+ complex ions iN Td symmetry (M = Zn, Cd, Co) and in D4h symmetry (M = Cu, Pd, Pt) has been undertaken on the basis of a General Valence Force Field (GVFF), using simplified ...
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(1983)A normal coordinates analysis for the hexamminochro mium (III) ion, in octahedral symmetry has been underta ken. A simplified M(NX) model has been adopted, since many of the gerade vibrational frequencies are still un ...
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(2012)The Notch signalling pathway regulates several aspects of cellular differentiation such as T lineage commitment and effector functions on peripheral T cells; however, there is limited information regarding Notch receptor ...
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(Universidad de Concepcion, 2011)We report some aspects of the floral biology of Echinopsis chiloensis ssp. chiloensis in a population near to the northern limit of its distribution. Anthesis is strictly diurnal and flowers remain open during 492 min on ...
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(Cell, 2020)The spine is a defining feature of the vertebrate body plan. However, broad differences in vertebral structures and morphogenetic strategies occur across vertebrate groups, clouding the homology between their developmental ...
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(Elsevier, 2018-05-20)
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(SOC BRASILEIRA QUIMICA, 2006-02)A new and two previously known metabolites possessing a polypropionate carbon skeleton have been isolated from the marine gastropod mollusk Siphonaria lessoni, collected at Chilean coasts. Their structures have been ...
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(Taylor and Francis, 2020)The minute freshwater gastropod Heleobia atacamensis is only known from its type locality Tilopozo, located at the southern end of the Atacama Saltpan, Antofagasta Region, Chile. It is classified as Critically Endangered ...
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(Elsevier, 2015)Abundant evidence indicates that iron accumulation, oxidative damage and mitochondrial dysfunction are common features of Huntington's disease, Parkinson's disease, Friedreich's ataxia and a group of disorders known as ...
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(1988)The sponge Esperiopsis edwardii was examined for its steroids. It contains forty-three C27-C29 derivatives with four different types of nucleus: 3 β-hydroxy-Δ5-; 3β-hydroxy-5αH-; 3α-hydroxy-5α H- and 3-keto-Δ4-derivatives. ...
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(Bentham Science Publishers, 2017)Cardiovascular disease is the leading cause of death worldwide. The heart is susceptible to pathologies that impact the myocardium directly, such as myocardial infarction and consequent heart failure, as well as conditions ...
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(Frontiers Media, 2019)Iron and calcium share the common feature of being essential for normal neuronal function. Iron is required for mitochondrial function, synaptic plasticity, and the development of cognitive functions whereas cellular calcium ...