Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions

Now showing items 4401-4420 of 5085

    • Complejos del cobre (II) con bases de Schiff derivadas de salicilaldehido y 2-aminopiridina 
      Atria Salas, Ana María; Spodine Spiridonova, Evgenia; Peña, Octavio; Garland, María Teresa; L'Helgouach, H. (Sociedad Chilena de Química, 1988)
      Se han determinado las propiedades magnéticas y espectroscópicas de los complejos de cobre (II) con bases de Schiff,[Cu(BS)Cl2]. Las bases de Schiff son: N-R-Salicilaldimina, donde R es 2-piridina: 4-metil-2-piridina; o ...
    • Importancia de la protección de la materia orgánica en suelos 
      Aguilera S., S. María (Sociedad Chilena de la Ciencia del Suelo, 2000)
      Entre los principales intereses mundiales hoy se tiene la gran conciencia del resguardo y recuperación de nuestros principales recursos naturales, entre los cuales es fundamental el sistema edáfico. Los suelos, con fines ...
    • Detection of tamoxifen metabolites by GC-MSD 
      Báez Guerrero, Hernán; Camargo Grandón, Rodrigo; Osorio, H,; Umpierrez, F. (PRESTON PUBLICATIONS INC, 2004-11)
      Tamoxifen is an antiestrogen used in the adjuvant endocrine therapy of early breast cancer and malignant breast disorders. It is also used in women with anovulatory infertility caused by its stimulating effect on the ...
    • Adsorption of methabenzthiazuron on six allophanic and nonallophanic soils: Effect of organic matter amendment 
      Báez Contreras, María Estrella; Rodríguez, M.; Vilches, P.; Romero, E. (MARCEL DEKKER INC, 2001)
      This article reports on methabenzthiazuron [1-(1,3-benzothiazol-2-yl)-1,3-dimethylurea] (MBT) adsorption process on six agricultural allophanic and nonallophanic soils. The effect of amendment with exogenous organic matter ...
    • Extraction of molybdenum by a supported liquid membrane method 
      Basualto Flores, Carlos; Marchese, J.; Valenzuela Lozano, Fernando; Acosta, Adolfo (ELSEVIER SCIENCE BV, 2003-04-10)
      This is a report on the extraction of molybdenum(VI) ions using a supported liquid membrane, prepared by dissolving in kerosene, the extractant Alamine 336 (a long-chain tertiary amine) employed as mobile carrier. A flat ...
    • A conditional tetracycline-regulated increase in gamma amino butyric acid production near luteinizing ... 
      Bilger, Marie; Heger, Sabine; Brann, Darrell W.; Paredes Vargas, Alfonso; Ojeda, Sergio R. (ENDOCRINE SOC, 2001-05)
      Gamma amino butyric acid (GABA) is the main inhibitory neuro-transmitter controlling LH-releasing hormone (LHRH) secretion in the mammalian hypothalamus. Whether alterations in GABA homeostasis within discrete regions of ...
    • RpoS and RpoN are involved in the growth-dependent regulation of rfaH transcription and O antigen expression ... 
      Bittner, Mauricio; Saldías, Soledad; Altamirano, Francisco; Valvano, Miguel A.; Contreras, Inés (ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2004-01)
      We reported earlier that the production of 0 antigen lipopolysaccharide (LPS) by Salmonella enterica serovar Typhi (Salmonella typhi) increases at the onset of stationary phase and correlates with a growth-regulated ...
    • Evaluación del impacto del reciclaje de residuos en suelos forestales 
      Aguilera S., S. María; Borie B., Gilda; Peirano V., Pedro; Rodríguez Rojas, Manuel (Sociedad Chilena de la Ciencia del Suelo, 2004)
      Para determinar el impacto en suelos forestales del reciclaje de residuos, lodos cloacales o biosólidos, aserrín y corteza, se evalúa residuos a utilizar, suelos, agua y la biomasa vegetal, a través de mediciones de ...
    • Transport of Zn(II), Cu(II), and Ni(II) on hollow fibers-type solid supported liquid membranes 
      Acosta, Adolfo; Valenzuela Lozano, Fernando; Basualto Flores, Carlos; Marchese, J.; Campderros, M. (SOCIEDAD CHILENA DE QUIMICA, 1998-12)
      This study reports on the transport and separation of Zn(II), Cu(II), and Ni(II) ions via a hollow fiber-type solid supported liquid membrane extractor. Alamine 336, a long chain tertiary amine was used as carrier extractant. ...
    • la crisis de identidad profesional del farmacéutico en América Latina 
      Arancibia, Aquiles (Organización de Farmacéuticos Ibero-Latinoamericanos, 1990)
      Se describe el impacto de la revolución industrial en el ejercicio de la profesión farmacéutica la cual viene también condicionada por la formación académica adquirida. Se revisa criticamente el contenido de los planes ...
    • Effects of high altitude exposure on the pharmacokinetics of furosemide in healthy volunteers 
      Arancibia, Aquiles; Gai, María Nella; Paulos, Claudio; Chávez Arrué, Jorge; Pinilla, E.; Angel, N.; Ritschel, W. A. (DUSTRI-VERLAG DR KARL FEISTLE, 2004-06)
      Introduction: A cascade of pathophysiological events occurs with the ascension to high altitude (H). We have performed studies on the effects of exposure to H on the pharmacokinetics of drugs. The hypothesis behind these ...
    • Dinámica del carbono en suelos con distintos sistemas de labranza 
      Aguilera S., S. María; Borie B., Gilda; Peirano V., Pedro (Universidad de la Frontera. Facultad de Ciencias Agropecuarias, 1999)
      La dinámica del carbono se evaluó en suelos con problemas de acidificación y de alto contenido de Al activo. En estos estudios, además se incluyen los resultados obtenidos en sistemas de cero-labranza, para definir en ...
    • STRUCTURE OF 4-BROMO-2-(2-PYRIDYLIMINOMETHYL)PHENOL 
      Atria Salas, Ana María; Garland, María Teresa; Spodine Spiridonova, Evgenia; Toupet, L. (MUNKSGAARD INT PUBL LTD, 1991-05-15)
      (1) C12H9BrN2O, M(r) = 277.3, monoclinic, P2(1)/n, a = 8.167 (3), b = 17.541 (5), c = 8.457 (3) angstrom, beta = 114.67 (3)degrees, V = 1100 (2) angstrom 3, Z = 4, D(x) = 1.67 Mg m-3, lambda(Mo K-alpha) = 0.71069 angstrom, ...
    • Pharmacokinetics of prednisolone in man during acute and chronic exposure to high altitude 
      Arancibia, Aquiles; Gai, María Nella; Chávez Arrué, Jorge; Paulos, Claudio; Pinilla, E.; González, C.; Villanueva, S.; Ritschel, W. A. (DUSTRI-VERLAG DR KARL FEISTLE, 2005-02)
      Introduction: The exposure to high altitude (H) produces several physiologic alterations which may induce changes in the pharmacokinetics of drugs. This hypothesis has been confirmed in previous studies which suggest that ...
    • Pharmacokinetics of lithium in healthy volunteers after exposure to high altitude 
      Arancibia, Aquiles; Paulos, Claudio; Chávez Arrué, Jorge; Ritschel, W. A. (DUSTRI-VERLAG DR KARL FEISTLE, 2003-05)
      Introduction: Exposure of the human body to high altitude causes a number of physiological changes. In previous studies, we observed that these changes may alter the pharmacokinetics of drugs. The number of erythrocytes/mm(3) ...
    • INTRAMOLECULAR [4+2] DIELS-ALDER CYCLOADDITIONS OF 2-SUBSTITUTED PHOSPHABENZENE AND ARSABENZENE IN TRIOSMIUM ... 
      Arce, A. J.; Deeming, A. J.; DeSanctis, Y.; García, A. M.; Manzur Saffie, Jorge; Spodine Spiridonova, Evgenia (Amer. Chem. Soc., 1994-09)
      2-(Trimethylsilyl)-1-phosphabenzene and -1-arsabenzene, Me(3)SiC(5)H(4)E (E = P, AS), react with [Os3H2(CO)(10)] to give the clusters [Os3H2(Me(3)SiC(5)H(4)E)(CO)(9)], which contain sigma-bonded, four-electron-donating mu ...
    • Effects of high altitude exposure on the pharmacokinetics of furosemide in healthy volunteers (vol 42, pg ... 
      Arancibia, Aquiles (Dustri-Verlag Dr Karl Feistle, 2004-09)
      Correction
    • Disposition kinetics of dibekacin in patients with renal-failure and in patients undergoing hemodialysis 
      Arancibia, Aquiles; Baillarie, D.; Bravo, M.; Chávez Arrué, Jorge (Dustri-Verlag Dr Karl Feistle, 1995-11)
      Dibekacin pharmcokinetics was studied in 3 healthy volunteers, 5 patients with renal failure presenting Cl-cr, between 4.0 and 67 ml min (-1) per 1.73 m(2) of body surface and 5 anephric patients given as a 30 minute ...
    • Extraction by barium salts of heavy metals from two chilean soils 
      Ahumada Torres, Aída Inés de Lourdes; Schalscha B., Eduardo; Pratt, P. F.; Mattigod, S. V. (Soil Science Society of America, 1984)
      Extraction of Cd,Cu, Ni and Zn by BaCl(Ba(ClO-4)2 solutions from El Recuerdo(Vertisol) and Puerto Octay (Andept)soils was used to measure the amounts of metals remaining extractable during a 60-d storage period under air-dry ...
    • DICHLORO-[N-(2PIRYDYLMETHYLIDENE)-2-THIENYLMEtHYLAMINE-N,N'] COPPER(II) AND DIBROMO-N-(2-PYRIDILMETHYLID ... 
      Atria Salas, Ana María; Baggio, Ricardo; Espinosa, N.; Garland, María Teresa; Manzur Saffie, Jorge; Moreno N., Yanko; Spodine Spiridonova, Evgenia (Munksgaard Int. Publ. Ttd., 1994-07-15)
      The crystal structures of dichloro- (2) and dibromo[2-pyridilmethylidene)-2thienylmethylidene)-2-thienylmethylmethyamine-NN'] copper(II) (1) have been determined to investigate the coordination of die metal centre. In ...