Browsing by Author "201-0140604"
Now showing items 41-60 of 92
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Guerrini, L.; Aliaga, A. E.; Cárcamo, J.; Gómez Jeria, Juan; Sánchez Cortés, S.; Campos Vallette, Marcelo; García Ramos, J. V. (ELSEVIER, 2008-08-29)Organochlorine pesticide endosulfan has been detected for the first time by using surface-enhanced Raman scattering (SERS) at trace concentrations. The bis-acridinium dication lucigenine was successfully used as a molecular ...
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Saavedra Aguilar, Juan Carlos; Gómez Jeria, Juan (Sociedad Chilena de Neurología, Psiquiatría y Neurocirugía, 1987)In this work we flIIIllyze the problem fo human conciousness from a monist point of view, including the actual knowledge in neurobiology. Three questions are discussed: 1. Can we localize human conciousness in certain ...
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Leyton, Patricio; Córdova, I.; Lizama Vergara, P. A.; Gómez Jeria, Juan; Aliaga, A. E.; Campos Vallette, Marcelo; Clavijo Campos, Ernesto; García Ramos, J. V.; Sánchez Cortés, S. (ELSEVIER, 2008-03-11)A humic acid (HA) extracted from lignite was successfully used in surface-enhanced Raman scattering SERS experiments as molecular occlusion assembler deposited onto a Ag colloidal surface to detect the polycyclic aromatic ...
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Leyton, Patricio; Zárate, R. Antonio; Fuentes, Sandra; Paipa, Carolina; Gómez Jeria, Juan; Leyton, Yessica (ELSEVIER, 2011-06)The effect of the aluminum oxide on the thermal synthesis of the glycine-glutamic acid (Gly-Glu-(Gly-Glu)(n) polymer is described. The thermal synthesis in the molten state was carried out in the absence and presence of ...
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Cárdenas Jirón, G. I.; Figueroa, K. A.; Vargas C., V.; Gómez Jeria, Juan; Campos Vallette, Marcelo (Marcel Dekker. Inc., 1987-04-11)Thymine dimers were obtained under ultraviolet irradiation. The major product is a trans-anti dimer linked by a cyclobutane ring. The infrared assignments and the mechanism of formation of this dimer are discussed in ...
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Garrido, C.; Aliaga, Avaro E.; Gómez Jeria, Juan; Cárcamo, José J.; Clavijo Campos, Ernesto; Campos Vallette, Marcelo (Elsevier B.V., 2012-01-16)The Raman and surface-enhanced Raman scattering (SERS) spectra of the C-terminal peptide of pigeon cytochrome C (PCC87-104), were recorded. This peptide is widely used to study the immune response in vivo. Hydrophobicity ...
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Vera, A. M.; Cárcamo, J. J.; Aliaga, A. E.; Gómez Jeria, Juan; Kogan Bocian, Marcelo; Campos Vallette, Marcelo (Elsevier, 2015)In a previous work we demonstrated that toxic aggregates of the protein b-amyloid (ATAb) involved in the Alzheimer’s disease (AD) can be destabilized upon electromagnetic irradiation of the peptide Cys- Leu-Pro-Phe-Phe-Asp ...
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Contreras Ramos, Renato; Gómez Jeria, Juan (Editorial Codelia, 1986)Self Consistent Reaction Field (SCRF) ealculations, including dielectric solvent effects, have been performed to analyze the relative stabilities of the different chernical species found in substitution reactions involving ...
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Campos Vallette, Marcelo; Clavijo Campos, Ernesto; Gómez Jeria, Juan; Díaz Fleming, Guillermo (Editorial Codelia, Publicaciones Científicas, 1984-11-24)On the basis of CNDO and INDO ca1culations, the trans and gauche isomers of the free radical n-perfluorobuthyl are established as the most probable structures in the conformational equilibrium. Spectral differences in ...
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Gómez Jeria, Juan (SOCIEDAD CHILENA DE QUIMICA, 2006-12)Two medium-sized molecular systems X-60 (X=C,N) were analyzed using Extended Huckel, Density Functional and ab initio Hartree-Fock methods. The aim of the work was to test the reliability of the EHT methodology to calculate ...
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Gómez Jeria, Juan (AMER SCIENTIFIC PUBLISHERS, 2009-06)The existence of a minimal molecular model to represent some electronic properties of nanostructures is analyzed for several kinds of nanotubes and graphene surfaces by using the Extended Hückel Theory. It is shown that ...
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Barahona Urbina, Camila; Nuñez González, Solange; Gómez Jeria, Juan (Sociedad Chilena de Quimica., 2012-10-12)We report the results of a search of formal relationships between accumulation data and molecular structure for some pollutant molecules (polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and polychlorinated ...
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Gómez Jeria, Juan (Kluwer Academic Publishers, 1989)
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Morales Lagos, D.; Gómez Jeria, Juan (American Chemical Society, 1991-01-02)New developments in the continuum representation of solvent effects are presented. General expressions for the Helmholtz free energy of an arbitrary discrete charge distribution placed in spherical and spheroidal (oblate ...
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Gómez Jeria, Juan (John Wiley and Sons, Inc., 1982-11-05)We performed an analysis of the drug-receptor equilibrium constant, Ki = {Q,,,Q;tQ,'} exp (-A&JkT). It is shown that, for a group of nonrotating molecules, we may consider the product of the partition functions as constant ...
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Gómez Jeria, Juan (2007)Some zigzag and all armchair single-walled carbon nanotubes are believed to behave as metals. However, recent experimental results suggest that only armchair single-walled carbon nanotubes show typically metallic behavior. ...
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Gómez Jeria, Juan (SOCIEDAD CHILENA DE QUIMICA, 2006-06)A Density Functional microscopic model of C-60, consisting of seven molecular orbitals (3 occupied and 4 empty), was employed to get the best values for the half-width and the scanning distance of the mathematical function ...
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Saavedra, Juan Garlos; Gómez Jeria, Juan (Sociedad de Neurología, Psiquiatría y Neurocirugía, 1991-08)A model of conscioussness rooted in the concept of intentionalit y is presented. Intentionallity is analyzed from some phylasophical sources. From this analysis it appears clear chat in ten tionalit y is (he nec/]SS8ry ...
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Gómez Jeria, Juan; Ojeda Vergara, Mario (Sociedad Chilena de Química, 2003-09-22)We present a physically based treatment of the molecular rotational partition function for the case of the interaction of a macromolecular receptor with a small biologically active molecule. This leads to the proposal ...
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Gómez Jeria, Juan (Sociedad Chilena de Química, 2003-09-22)We present a physically based treatment of the molecular rotational partition function for the case of the interaction of a macromolecular receptor with a small biologically active molecule. This leads to the proposal ...