Browsing by Title Facultad de Ciencias
Now showing items 7360-7379 of 8181
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(Elsevier, 2004)Layered compounds are nanostructured, intrinsically anisotropic materials which often undergo intercalation reactions producing host– guest complexes. In this work examples from the molybdenum disulfide chemistry are used ...
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(Elsevier, 2020)During the last decade, the one drug-one target strategy has resulted to be inefficient in facing diseases with complex ethiology like Alzheimer's disease and many others. In this context, the multitarget paradigm has ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2008-03-15)The present work reports the synthesis and spectroscopic and electrochemical characterization of homoleptic copper(l) complexes with substituted pirazino [2,3-f]-1,10-phenanthroline, RpplR', (R = H, Me, COOH or COOMe, and ...
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(2003)The high molecular weight phosphazene random copolymer {[NP(OC 6H5)2]0.94 [NP(OC6H 5)(OC6H4CNFe(dppe)CP)]0.06[PF 6]0.06}n (1), that carries [Fe(dppe)Cp] cationic fragments coordinated to nitrile side groups, has been ...
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(Taylor & Francis, 2016)The synthesis of dinuclear ruthenium sawhorse-type complexes [Ru-2(-ArCH:Rhod)(2)(CO)(4)](n) 12a-e and [Ru-2(ArCH:Rhod)(2)(-ArCH:Rhod)(2)(CO)(4)] 13a-e through reaction of [Ru-3(CO)(10)(NCMe)(2)] and [Ru-3(CO)(12)] and the ...
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(PERGAMON-ELSEVIER, 2008-04-01)A series of 9 homoserine lactone-derived sulfonylureas substituted by an alkyl chain, some of them bearing a phenyl group at the extremity, have been prepared. All compounds were found to inhibit the action of 3-oxo-hexa ...
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(Frontiers Media, 2020)The systematics of the New Zealand octopods have only been reviewed twice in the last 100 years. In these revisions many species have been provisionally classified in the genus Octopus. Recent genetic studies have synonymized ...
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(AMER ACAD PEDIATRICS, 2006-05)OBJECTIVE. Cellular immunity has classically been described as the defense mechanism for viral infections. The development of cellular or humoral immune responses will depend on a repertoire of cytokines produced by numerous ...
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(Blackwell Publishing, 2013)T helper type 17 (Th17) lymphocytes are found in high frequency in tumour-burdened animals and cancer patients. These lymphocytes, characterized by the production of interleukin-17 and other pro-inflammatory cytokines, ...
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(1995)We consider a system of the form u’' + au’ = Hv(u, v)-h(t) v’' + bv’ = Hu(u, v)-k(t), where h, k are locally integrable and T-periodic, and H is a C1 function defined on (0,∞)x(0,∞), for which a good model is given by H(u, ...
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(Elsevier, 2017)We have prepared a nanoelectrode ensemble containing vertically aligned single walled carbon nanotubes (SWCNTs) using a non-template molecular self-assembling strategy. We used a bottom-up construction approach to assemble ...
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(Elsevier Ltd, 2017)© 2017 Elsevier Ltd We have prepared a nanoelectrode ensemble containing vertically aligned single walled carbon nanotubes (SWCNTs) using a non-template molecular self-assembling strategy. We used a bottom-up construction ...
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(Universidad de Chile, 2002)
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(Pontificia Universidad Católica de Valparaíso, 2019)En el presente trabajo mostramos tres tareas adaptadas de aquellas que se suelen proponer en un curso de Álgebra y Geometría en primer año de formación inicial de profesores, las cuales, entre otras cosas, tienen la ...
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(Elsevier, 1998)Here, we present the analysis of wood to determine trace elements in tree rings. We have irradiated wood pieces directly, for thick target PIXE, and also thin samples obtained by chemical treatment of the wood material. ...
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(Lippincott Williams & Wilkins, 2016)We reported earlier that TNF-alpha, a proinflammatory cytokine implicated in many inflammatory disorders causing orofacial pain, increases the activity of Cdk5, a key kinase involved in brain development and function and ...
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(Springer, 2018)Perinatal asphyxia (PA) is a relevant cause of death at the time of labour, and when survival is stabilised, associated with short- and long-term developmental disabilities, requiring inordinate care by health systems and ...
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(Universidad de Chile, 2024)Las investigaciones sobre las variables que modifican la tasa de cambio evolutivo de las macromoléculas han estado en el centro del estudio de la evolución molecular desde sus inicios. En esta línea la pleiotropía, entendida ...
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(Universisdad de Chile, 2012)Aunque la disponibilidad de agua ambiental es considerada un factor limitante para la presencia de artrópodos, el orden Escorpiones se encuentran ampliamente distribuidos y descarta por sus adaptaciones a ambientes secos. ...
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(2004)Tau is a neuronal microtubule-associated protein that plays a central role in many cellular processes, both physiological and pathological, such as axons stabilization and Alzheimer's disease. Despite extensive studies, ...