Browsing by Title Facultad de Ciencias
Now showing items 4479-4498 of 8178
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(Sociedade Brasileira de Química, 2012-03)This work reports a systematic study of the structural and electrical behavior of three ternary phases of the TaxMo1-xS2 system (x = 0.55, 0.75 and 0.90) and their intercalation compounds resulting from both chemical and ...
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(2002)Most relevant features of the fundamental and applied chemistry of MoS2 are reviewed highlighting the importance of the layered nature of the solid on the optical and catalytic properties of the compounds. Experimental and ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2006-06-15)It is shown that the intercalation of [Europium(bipyridine)213, into bentonite results in a new nanocomposite which preserves the emission properties of Europium (111). The exchange of sodium by europium in bentonite is ...
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(SOC CHILENA QUIMICA, 2008-06)The intercalation compounds Li0.43(PEO)2.4(H2O)1.4K0.57BiP2S6 and Li0.38(PEO)2.1(H2O)1.6K0.62SbP2S6 have been synthesized by the insertion of polyethylene oxide PEO in LiKMP2S6 (M=Bi, Sb), that contained Li+ and K+ ...
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(PERGAMON-ELSEVIER SCIENCE, 2005-03-08)The intercalation compounds Li-0.96(H2O)(0.77)(PEO)(0.63)Ni0.48PS3 and Li-0.94(H2O)(0.92)(PEO)(0.94)Fe0.48PS3 obtained by the insertion of PEO in MPS3 form lithium-polyethylene oxide complexes containing Li+ exchangeable ...
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(Universidad de Chile, 2007)
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(Asociación Argentina de Ecología, 2005-06)
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(Public Library Science, 2015)RfaH is a virulence factor from Escherichia coli whose C-terminal domain (CTD) undergoes a dramatic alpha-to-beta conformational transformation. The CTD in its alpha-helical fold is stabilized by interactions with the ...
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(2007)We discuss the formation of guided modes localized at the interface separating two different periodic photonic lattices. Employing the effective discrete model, we analyze linear and nonlinear interface modes and also ...
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(2009)We study the properties of two-color nonlinear localized modes which may exist at the interfaces separating two different periodic photonic lattices in quadratic media, focusing on the impact of phase mismatch of the ...
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(OPTICAL SOC AMER, 2008-12-01)We analyze localization of light at the interfaces separating square and hexagonal photonic lattices, as recently realized experimentally for two-dimensional laser-written waveguides in silica glass with self-focusing ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2005-06-01)The interfacial properties ofpoly(maleic acid-alt-1-alkene) disodium salts at hydrocarbon/water interfaces are determined. In all the studied systems, the interfacial tension decreases markedly with the polyelectrolyte ...
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(2001)Understanding the relative timings of climate events in the Northern and Southern hemispheres is a prerequisite for determining the causes of abrupt climate changes. But climate records from the Patagonian Andes1-4 and New ...
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(BIOMED CENTRAL LTD, 2007-10-03)Background: Interleukin-3 (IL-3) is an important glycoprotein involved in regulating biological responses such as cell proliferation, survival and differentiation. Its effects are mediated via interaction with cell surface ...
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(2004)Dendritic cells (DCs) generated in vitro from bone marrow precursors using granulocyte-macrophage colony-stimulating factor (GM-CSF) secrete interleukin-2 (IL-2) upon activation, an event probably associated to the ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004-04-15)Inflammation is a process that has been actively related with the onset of several neurodegenerative disorders including Alzheimer disease (AD). However, the precise implications of inflammatory response for neurodegeneration ...
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(Oxford Univ. Press Inc., 2016)There is a critical need for new therapeutic strategies to restore motor function in patients with spinal cord injuries (SCIs), without unwanted effects. Intermittent hypoxia (IH) induces plasticity in spared synaptic ...
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(American Chemical Society, 2006-06-26)Photochemical reaction of (eta(5)-C5R5)Re(CO)3 (R = H, Me) with pentachlorobenzene (lambda = 350 nm, hexane solution) yields trans-(eta(5)-C5R5)Re(CO)(2)(2,3,4,5-C6HCl4) (trans-1, R = Me; 2, R = H) formed by insertion of ...
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(John Wiley and Sons Ltd, 1996)Internal rotational barriers of aromatic carbonl compounds were calculated by means of semi-empirical quantum chemical methods such as AM1 and PM3. Rotational potential barriers in the AM1 approach (VAM1) follow the ...