Browsing by Title Facultad de Ciencias Químicas y Farmacéuticas
Now showing items 4055-4074 of 4844
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(Sociedad Chilena de Química, 1998)The potential energy surface of hstamine monocation is calculated by MNDO types methodologies and by the Reaction Field model at CNDO/2 level, in order to rationalize the experimental findings about the relative abundance ...
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(S. Karger AG, 2008)Many features of aging result from the incapacity of cells to adapt to stress conditions. When damage accumulates irreversibly, mitotic cells from renewable tissues rely on either of two mechanisms to avoid replication. ...
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(Universidad de Chile, 2024)El envejecimiento y la senescencia celular emergen como importantes factores de riesgo en la incidencia y progresión de las enfermedades cardiovasculares (ECV). La adquisición del fenotipo senescente es un proceso ...
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(2014)A hydrogen-terminated Si (111) surface was modified to form an aminoterminated monolayer for immobilization of streptavidin. Cleavage of an N-(ω- undecylenyl)-phthalimide covered surface using hidrazine yields an amino ...
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(SOCIEDAD CHILENA DE QUIMICA, 2004-06)Hybrid nanocomposites based on siloxane sols, chitosan and poly(monomethyl itaconate) (PMMI) as organic polymer counterparts were prepared. Tetraethyl ortosilicate was used as inorganic network fort-ning reagent that was ...
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(2013)In this work, a new method to quantify nitrofurantoin in aqueous media using a flow injection system connected to commercially available screen-printed carbon nanofibers was developed. A pretreatment of the screen-printed ...
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(AMER SOC PHOTOBIOLOGY, 2005-03)Thyronine derivatives are essential indicators of thyroid gland diseases in clinical diagnosis and are currently used as standards for developing ordinary biochemical assays. Photooxidation of gland hormones of the thyronine ...
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(2005)Thyronine derivatives are essential indicators of thyroid gland diseases in clinical diagnosis and are currently used as standards for developing ordinary biochemical assays. Photo-oxidation of gland hormones of the thyronine ...
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(ELSEVIER SCIENCE SA, 2001-12-31)Detection of O-2((1)Delta(g)) phosphorescence emission, lambda(max) = 1270 nm, following laser excitation and steady state methods were employed to determine the total rate constant, k(T), for the reaction between the ...
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(2013)The effect of a previous hydrostatic high-pressure (HHP) treatment on sensory and physical quality of chilled coho salmon (Oncorhynchus kisutch) was investigated. As a first stage, a 2(2) factorial design based on the ...
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(Universidad de Chile, 2012-12)En los últimos años, las células troncales han surgido como una promisoria alternativa de terapia regenerativa en la búsqueda de nuevas estrategias para abordar distintas patologías que involucran un daño celular y la ...
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(Universidad de Chile, 2019)Luego de un infarto al miocardio, el corazón se repara mediante un proceso denominado fibrosis cardíaca, en el cual los cardiomiocitos muertos son reemplazados por una cicatriz de matriz extracelular (MEC), conformada ...
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(Universidad de Chile, 2011)En esta Memoria de Título se estudió la extracción y separación de lantano (III), cerio (III), praseodimio (III) y neodimio (III) mediante extracción por solventes utilizando como agentes transportadores los extractantes ...
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Separation of Cu(II) and Mo(VI) from mine waters using two microporous membrane extraction systems (Marcel Dekker Inc, 2000)This is a report on the separation and recovery of Cu(II) and Mo(VI) ions from two Chilean mine waters using two hollow fiber-type microporous liquid membrane extraction systems. LIX-860 (a salicylaldoxime) and Alamine 336 ...
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(2007)This is a report on the separation and recovery of zinc ions from an acidic mine drainage using a stirred transfer cell-type emulsion liquid membrane contactor. Di(2-ethylhexyl) phosphoric acid was used as a highly selective ...
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(2010)The International Collaboration to Sequence the Atlantic Salmon Genome (ICSASG) will produce a genome sequence that identifies and physically maps all genes in the Atlantic salmon genome and acts as a reference sequence ...
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(2010)This paper presents a chronological sequence of human occupation from the end of the Pleistocene to the present day in the Atacama Desert, one of the most barren territories of the New World. The occupational sequence ...
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(MARCEL DEKKER INC, 1999-05)Different chemical forms of cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), lead (Pb), nickel (Ni), and zinc (Zn) were determined in agricultural soils cultivated with lettuce and celery. These soils have been ...
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(Universidad de Chile, 2023)En este trabajo se sintetizaron doce monómeros en serie, 4-((6-(metacriloiloxi) hexil) oxi) benzoato de 4-n-oxifenilo con n=[1-12]. Estos compuestos se caracterizaron estructuralmente mediante resonancia magnética nuclear ...
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(Wiley, 2014)Serotonin (5-HT) production and expression of 5-HT receptors (5-HTRs) occur early during prenatal development. Recent evidence suggests that, in addition to its classical role as a neurotransmitter, 5-HT regulates neuronal ...