Browsing by Title Artículos de revistas

Now showing items 1304-1323 of 2801

    • Identification of lowest excited states in the organometallic iron-nitrile complexes 
      Diaz, Eloisa (1999)
      Electronic absorption spectra for the complexes [CpFe(dppe)NC-R]PF6 R = CH2-C6H4-ON3P3(OC 6H4t-Bu)5 (1), R = CH2-C6H4-OH (2) and R = CH3 (3) in different solvents have been measured. The two absorption bands at the lowest ...
    • Identification of Nosema ceranae in the Valparaíso District, Chile 
      Bravo, J.; Carbonell, V.; Valdebenito, J. T.; Figueroa, C.; Valdovinos, C. E.; Martín-Hernández, R.; Higes, M.; Delporte, C. (Universidad Austral de Chile, 2014)
      This study aimed to demonstrate for the first time the presence of Nosema ceranae in the Valparaiso District. The analised bee samples were obtained in the Valparaiso Region, between 2011 and 2012, from beehives located ...
    • Identification of peptides in flowers of Sambucus nigra with antimicrobial activity against aquaculture pathogens 
      Álvarez, Claudio; Barriga, Andrés; Albericio, Fernando; Romero, María; Guzman, Fanny (MDPI, 2018-05)
      The elder (Sambucus spp.) tree has a number of uses in traditional medicine. Previous studies have demonstrated the antimicrobial properties of elderberry liquid extract against human pathogenic bacteria and also influenza ...
    • Identification of phenolic compounds by HPLC-ESI-MS/MS and antioxidant activity from Chilean propolis 
      Castro, Consuelo; Mura Mardones, Francisco; Valenzuela, Gabriela; Figueroa, Catalina; Salinas, Romina; Zuñiga, M. Carolina; Torres, Josep Lluís; Fuguet, Elisabet; Delporte, Carla (Elsevier Ltd, 2014)
      © 2014.Propolis is a complex hive product produced by honey bees, Apis mellifera. Its composition and biological activities depend on the vegetation where hives are placed. Propolis is often used as a food supplement. The ...
    • Identification of pre-harvest factors that affect fatty acid profiles of avocado fruit (Persea americana ... 
      Ferreyra, R.; Sellés, G. G.; Saavedra, J.; Ortiz, J.; Zúñiga, C.; Troncoso, C.; Rivera, S. A.; González Agüero, M.; Defilippi, B. G (Elsevier, 2016)
      'Hass' avocado is the most important avocado variety cultivated worldwide. In Chile alone, there are nearly 40,000 ha, distributed between the IV and VI regions, with production areas located close to both the coast and ...
    • Identification of the transition state for fast reactions: The trapping of hydroxyl and methyl radicals by ... 
      Aguilera Venegas, Benjamín; Speisky Cosoy, Hernán (Elsevier Inc., 2014)
      Up to date, attempts to locate the transition state (TS) for the trapping reaction between ̇OH and ̇DMPO have been unsuccessful, and the lack of molecular mechanisms by which ̇OH binds to the spin-trap constitutes a question ...
    • IGF-1 modulation of rat cardiac fibroblast behavior and gene expression is age-dependent 
      Díaz Araya, Guillermo; Borg, T. K.; Lavandero González, Sergio; Loftis, M. J.; Carver, W. (TAYLOR & FRANCIS LTD, 2003-05)
      The collagenous extracellular matrix (ECM) forms a stress-tolerant network that is essential for proper function of the vertebrate heart. Profound changes have been detected in the interstitial ECM concurrent with developmental ...
    • IGF-1 protects cardiac myocytes from hyperosmotic stress-induced apoptosis via CREB 
      Maldonado, Carola; Cea, Paola; Adasme, Tatiana; Collao, Andrés; Díaz Araya, Guillermo; Chiong Lay, Mario; Lavandero González, Sergio (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2005-11-04)
      Hyperosmotic stress stimulates a rapid and pronounced apoptosis in cardiac myocytes which is attenuated by insulin-like growth factor-1 (IGF-1). Because in these cells IGF-1 induces intracellular Ca2+ increase, we assessed ...
    • IGF-1 regulates apoptosis of cardiac myocyte induced by osmotic-stress 
      Morales, María Paz; Gálvez, Anita; Eltit Ortega, José Miguel; Ocaranza, María Paz; Díaz Araya, Guillermo; Lavandero González, Sergio (ACADEMIC PRESS INC, 2000-04-21)
      Insulin-like growth factor-1 (IGF-1) is a natural protectant of cardiac myocytes that has been shown to improve cardiac function. The role of IGF-1 in attenuating apoptosis induced by osmotic stress (sorbitol, SOR) or by ...
    • IGF-1: Un factor de crecimiento con acciones cardiovasculares pleiotrópicas. 
      Contreras Ferrat, Ariel Eduardo; Aránguiz Urroz, Pablo Daniel; Díaz Elizondo, Jessica; Chiong Lay, Mario; Muñoz, Juan Pablo; Parra Ortíz, María Valentina; Ibarra, Cristián; Rojas Rivera, Diego; Troncoso Cotal, Rodrigo; Eisner, Verónica; Salas, Daniela; Rodríguez Villarroel, Andrea Elizabeth; Carrasco Alarcón, Loreto del Pilar; Díaz Araya, Guillermo; Lavandero González, Sergio (Sociedad Chilena de Cardiología y Cirugía Cardiovascular, 2006)
      El factor de crecimiento análogo a insulina tipo 1 (IGF-1) es un péptido relacionado estructural y funcionalmente con insulina que posee efectos mitogénicos y citoprotectores. Sus efectos biológicos dependen de la activación ...
    • II-Metossi-diabolina: un nuovo alcaloide terziario da Strychnos Romeu Belenii Krukoff & Barneby 
      Delle Monache, E. M.; Galeffi, Corrado; Erazo, Silvia; Marini-Bettòlo, G. B. (Accademia Nazionale dei Lincei, 1971)
      From the stem bark of Strychnos Romeu Belenii Krukoff & Barneby a Loganiacea of South America, a new indolinic alkaloid has been isolated, to which the structure of II-methoxydiaboline(I) has been assigned on the basis of ...
    • The IKK complex contributes to the induction of autophagy 
      Criollo Céspedes, Alfredo; Senovilla, Laura; Authier, Helene; Maiuri, M. C.; Morselli, E.; Vitale, I.; Kepp, O.; Tasdemir, E.; Galluzzi, Lorenzo; Shen, S.; Tailler, M.; Delahaye, N.; Tesniere, A.; De Stefano, D.; Ben Younes, Amena; Harper, F.; Pierron, G.; Lavandero González, Sergio; Zitvogel, L.; Israel, A; Baud, V; Kroemer, Guido (NATURE PUBLISHING GROUP, 2010-02-03)
      In response to stress, cells start transcriptional and transcription-independent programs that can lead to adaptation or death. Here, we show that multiple inducers of autophagy, including nutrient depletion, trigger the ...
    • IKK connects autophagy to major stress pathways 
      Criollo Céspedes, Alfredo; Senovilla, Laura; Authier, Hélène; Maiuri, Maria Chiara; Morselli, Eugenia; Vitale, Ilio; Kepp, Oliver; Tasdemir, Ezgi; Galluzzi, Lorenzo; Shen, Si; Tailler, Maximilien; Delahaye, Nicolas; Tesniere, Antoine; De Stefano, Daniela; Younes, Aména Ben; Harp (Taylor and Francis Inc., 2010)
      Cells respond to stress by activating cytoplasmic mechanisms as well as transcriptional programs that can lead to adaptation or death. Autophagy represents an important cytoprotective response that is regulated by both ...
    • Immobilization of graphene-derived materials at gold surfaces: Towards a rational design of protein-based ... 
      Primo, Emiliano N.; Bollo Dragnic, Soledad; Rubianes, María D.; Rivas, Gustavo A. (Pergamon-Elsevier Science LTD, 2018)
      This work is focused on the critical analysis of the non-covalent modification of a thiolated-gold surface with different grapheneous materials and the covalent attachment of bovine serum albumin (BSA) as a model protein. ...
    • Immobilization of rhodamine 6G in calcium alginate microcapsules based on aromatic-aromatic interactions ... 
      Araya Hermosilla, Esteban; Muñoz, Daniel; Orellana, Sandra; Yáñez, Alejandro; Olea, Andrés F.; Oyarzún Ampuero, Felipe; Moreno Villoslada, Ignacio (Elsevier, 2014)
      Immobilization of rhodamine 6G in calcium alginate microcapsules was achieved using the polyanion bearing negatively charged aromatic groups poly(sodium 4-styrenesulfonate) as complexing agent. The immobilization of the ...
    • Immobilized enzyme reactors. Diffusion/convection, kinetics, and a comparison of packed-column and rotating ... 
      López Ruiz, Beatríz; Sánchez Cabezudo, M.; Richter Duk, Pablo; Mottola, H. A. (AMER CHEMICAL SOC, 1996-05-15)
      The roles of chemical kinetics and mass transfer in two types of bioreactors (packed-column reactors and rotating disk bioreactors), used with continuous-now sample/reagent(s) processing, are discussed in detail. A normalized ...
    • The Impact of a Carbon Tax on the Chilean Electricity Generation Sector 
      Benavides Farías, Carlos; Gonzales, Luis; Díaz Romero, Manuel; Fuentes, Rodrigo; García, Gonzalo; Palma Behnke, Rodrigo; Ravizza, Catalina (MDPI, 2015)
      This paper aims to analyse the economy-wide implications of a carbon tax applied on the Chilean electricity generation sector. In order to analyse the macroeconomic impacts, both an energy sectorial model and a Dynamic ...
    • Impact of the simulated gastric digestion methodology on the In vitro intestinal proteolysis and lipolysis ... 
      Mella Caro, Camila; Quilaqueo, Michelle; Zúñiga, Rommy N.; Troncoso, Elizabeth (MDPI, 2021)
      The aim of this work was to study the impact of the methodology of in vitro gastric digestion (i.e., in terms of motility exerted and presence of gastric emptying) and gel structure on the degree of intestinal proteolysis ...
    • Importance of the electrolyte cation on the non-covalent interactions in the electrooxidation of 1-heptanol ... 
      Ureta Zañartú, María Soledad; Méndez Torres, Ana María; Fernández, Francisco; Ilabaca, Jacqueline; Mascayano, Carolina; Gutiérrez, Claudio (Elsevier, 2020)
      In order to determine the possible non-covalent influence of the alkali metal cation on the electrooxidation of 1-heptanol on gold in alkali metal hydroxides, 0.1 M MOH solutions, where M = Li, Na, K, Rb, and Cs, have been ...
    • Importancia de la biorregulación celular en la patología humana 
      Sapag Hagar, Mario (Universidad de chile, 1985)