Now showing items 2131-2150 of 2801

    • Jachero, Lourdes; Claudio, Leiva; Ahumada Torres, Aída Inés; Richter Duk, Pablo (Springer, 2017)
      The bioavailability of polychlorinated biphenyls (PCBs) in soils amended with biosolids was estimated using an aqueous leaching process of the compounds combined with rotating disk sorptive extraction (RDSE), and compared ...
    • Riquelme, Sebastián; Varas, Macarena; Valenzuela, Camila; Velozo Hermosilla, Paula Elizabeth; Chahin, Nicolás; Aguilera, Paulina; Sabag, Andrea; Labra, Bayron; Álvarez Armijo, Sergio; Chávez, Francisco P.; Santiviago Cid, Carlos (Frontiers Media, 2016)
      The social amoeba Dictyostelium discoideum has proven to be a useful model for studying relevant aspects of the host-pathogen interaction. In this work, D. discoideum was used as a model to study the ability of Salmonella ...
    • Matos, Maria João; Pérez Cruz, Fernanda; Vazquez Rodriguez, Saleta; Uriarte, Eugenio; Santana, Lourdes; Borges, Fernanda; Olea Azar, Claudio (Elsevier, 2013)
      In the present work we synthesized a series of hydroxy-3-arylcoumarins (compounds 1–9), some of them previously described as MAO-B selective inhibitors, with the aim of evaluating their antioxidant properties. Theoretical ...
    • Machado, Marcio; Iskedjian, Michael; Ruiz, Inés; Einarson, Thomas R. (LIBRAPHARM, 2006-09)
      Objective: To summarize remission rates and dropouts due to adverse drug reactions (ADRs) or lack of efficacy (LoE) of serotonin-norepinephrine reuptake inhibitors (SNRIs), selective serotonin-reuptake inhibitors (SSRIs), ...
    • Almodovar, Iriux; Cardona, Wilson; Delgado Castro, Tomás; Zapata Torres, Gerald Amilcar; Caroli Rezende, Marcos; Araya Maturana, Ramiro; Maestro, M. Carmen; García Ruano, José L. (Elsevier, 2013)
      Diels–Alder cycloaddition of 8,8-dimethylnaphthalene-1,4,5(8H)-trione with diastereomeric hydroxysulfinyldienes proceeded with high yields and good p-facial and regioselectivities. The hydroxysulfoxide moiety controls ...
    • Bellú, Sebastián; García, Silvia; González, Juan C.; Atria Salas, Ana María; Sala, Luis F.; Signorella, Sandra (TAYLOR & FRANCIS INC, 2008)
      Grainless stalk of corn (GLSC) was tested for removal of Cr(VI) and Cr(III) from aqueous solution at different pH, contact time, temperature, and chromium/adsorbent ratio. The results show that the optimum pH for removal ...
    • Valenzuela Lozano, Fernando; Fonseca, C.; Basualto Flores, Carlos; Correa Briones, Olosmira; Tapia, C.; Sapag Hagar, Jaime (PERGAMON-ELSEVIER SCIENCE LTD, 2005-06)
      This is a communication on the removal of copper(II) ions from a residual mine water using an emulsified liquid membrane (ELM). The membrane was prepared by dissolving the extractant LIX-860 (a salicylaldoxime), used as a ...
    • Tohé, Josá; Soto, M. Angélica; Pola Contreras, Sergio Esteban (1991)
      A simple device for an efficient waste water treatment is described. The procedure uses a massive microalga culture as a source of OH-, which increases the pH of the medium killing the bacterial population. In the device ...
    • Araneda, C.; Fonseca, C.; Sapag Hagar, Jaime; Basualto Flores, Carlos; Yazdani-Pedram Zobeiri, Mehrdad; Kondo, Kazuo; Kamio, Eiji; Valenzuela Lozano, Fernando (ELSEVIER, 2008-11-03)
      The removal of Cd(II) and Cu(II) ions from aqueous solutions was studied by sorption onto microcapsules prepared by copolymerizing ethylene glycol dimethacrylate (EGDMA) and styrene (ST). The microcapsules were prepared ...
    • Bosco Becerra, Cleofina; Rodrigo Salinas, Ramón; Diaz, Sandra; Borax, Joanna (1997)
      We studied the effects of chronic exposure to malathion in the kidney of Octodon degus, a caviomorph whose habitat may be exposed to pesticides currently used in Chilean agriculture. A group of adult female animals received ...
    • Ampuero, Estibaliz; Stehberg, Jimmy; González, D.; Besser, Nicolas; Ferrero, Mónica; Besser, Nicolás; Díaz Véliz, Gabriela; Wyneken, Ursula; Rubio, Francisco Javier (Elsevier, 2013)
      Fluoxetine is currently being administered for long-term maintenance and for prophylactic reasons following the remission of depressive symptoms and several other psychiatric and neurological conditions. We have previously ...
    • Pujals, Sílvia; Fernández Carneado, Jimena; Kogan Bocian, Marcelo; Martínez, Jean; Cavelier, Florine; Giralt, Ernest (AMER CHEMICAL SOC, 2006-07-05)
      The results presented here show that elementary design enhancements have led to a 20-fold increase in the cellular uptake properties of a Pro-rich cell-penetrating peptide. These results are relevant not only due to the ...
    • Uzcátegui, G. C.; Hung, F.; Ortega, Marisol C.; Pardey, Alvaro J.; Longo, C.; Aguirre, P.; Moya, S. A. (SOCIEDAD CHILENA DE QUIMICA, 2005-12)
      The catalysis of the hydroesterification and hydroformylation-acetalization of 1-hexene by rhodium(I), cis-[Rh(CO)2(amine)2](PF6) complexes (amine = pyridine, 2-picoline, 3-picoline, 4-picoline, 3,5-lutidine or 2,6-lutidine) ...
    • Prendez Bolívar, María Margarita; Novoa Aguirre, Patricio Alejandro; Romero Aravena, Hugo; Mendes, Flávio; Fuentealba Poblete, Raúl Enrique (Springer, 2022)
      Santiago, capital city of Chile, presents air pollution problems for decades mainly by particulate matter, which significantly affects population health, despite national authority efforts to improve air quality. Different ...
    • Adell, Aiko; Rivera, Dacil; Díaz, Constanza; Serrano, María; Toledo, Viviana; Moreno Switt, Andrea (Elsevier, 2018-04)
      The aim of this review was to understand the research that has been conducted in South American countries to detect or quantify major water and foodborne pathogens, with the aim of identifying advancements and gaps in food ...
    • Baez, M.; Rodriguez, M.; Lastra, O.; Peña, A.; Colina, C. de la; Sánchez Rasero, F. (1996)
      A study was done of seasonal variations of pesticide contents in waters of the Aconcagua river basin and Aromos dam in the V Region of Chile by solid phase extraction (SPE) and Chromatographic determination with GC-ECD, ...
    • Zunino Venegas, Hugo; Galindo, Gerardo (The Williams & Wilkins Co., 1978)
    • Cordano, G.; Ferreira, José Roberto; Muñoz, S.; Rivera, E.; Pavani, Mario; Pavez, H. (SOCIEDAD CHILENA DE QUIMICA, 1997-12)
      We report the reaction of gallic acid with chloroacetic acid and three equivalents of sodium hydroxide. In this reaction, 2,6-dihydroxy-4-carboxyphenoxyacetic acid (A) is produced instead of 2,3-dihydroxy-5-carboxyphenoxyacetic ...
    • Pacheco, Camila; González, Estefanía; Robert Canales, Paz; Parada, Javier (Elsevier, 2018)
      Oleuropein is a phenolic compound that is present in fruits and olive tree leaves, which has shown enormous health benefits. This study aimed to assess the effects of the baking and boiling cooking methods and the ...
    • Zapata Torres, Gerald; Fierro, Angélica; Barriga González, Germán; Salgado, J. Cristian; Celis Barros, Cristian (Amer Chemical Soc, 2015)
      Two of the possible catalytic mechanisms for neurotransmitter oxidative deamination by monoamine oxidase B (MAO B), namely, polar nucleophilic and hydride transfer, were addressed in order to comprehend the nature of ...