Now showing items 264-283 of 2727

    • Rivera, Dacil; Toledo, Viviana; Di Pillo, Francisca; Dueñas, Fernando; Tardone, Rodolfo; Hamilton-West Miranda, Christopher; Vongkamjan, Kitiya; Wiedmann, Martin; Moreno Switt, Andrea I. (International Association Food Protection, 2018)
      The genus Salmonella has more than 2,600 serovars, and this trait is important when considering interventions for Salmonella control. Bacteriophages that are used for biocontrol must have an exclusively lytic cycle and the ...
    • Osman, Jorge; Viedma, Pabla; Mendoza Crisosto, Jorge; Cotoras, Davor (Taylor & Francis, 2020)
      Microbialites are organo-sedimentary structures formed as minerals precipitate due to the metabolic activity of microorganisms. They can be differentiated by their internal mesostructure into stromatolites and thrombolites. ...
    • Seeger, Michael; Timmis, Kenneth; Hofer, Bernd (1997)
      Polychlorinated biphenyls (PCBs) are one of the most widely distributed chlorinated pollutants in the environment. Bioremedation seems to be a promising approach for the clean-up of PCB-contaminated soils and aquatic ...
    • Rodríguez, Andrea E.; López Crisosto, Camila; Peña Oyarzún, Daniel; Salas, Daniela; Parra A., Valentina; Quiroga, Clara; Morawe, Tobías; Chiong Lay, Mario; Behl, Christian; Lavandero González, Sergio (Taylor and Francis, 2016)
      Autophagy is mainly regulated by post-translational and lipid modifications of ATG proteins. In some scenarios, the induction of autophagy is accompanied by increased levels of certain ATG mRNAs such as MAP1LC3B/LC3B, ATG5 ...
    • Erazo, Silvia; García, R.; Delle Monache, E. M. (México Federación Latinoamericana de Química, 1990)
      The leaves of P. glandulosa contain the active meroterpenoid bakuchiol, as well as angelicin, psoralen and a new cinnamic derivative.
    • Aguilera S., S. María; Mora, M. D.; Borie B., Gilda; Peirano V., Pedro; Zunino Venegas, Hugo (PERGAMON-ELSEVIER SCIENCE LTD, 2002-09)
      Sulphur distribution with an insight in S-organic fractions was studied in volcanic-ash derived soils of Chile (Typic Dystrandepts, Palehumult) by isolating each fraction and measuring S directly by instrumental elemental ...
    • Peirano V., Pedro; Aguilera S., S. María; Borie B., Gilda (Temuco, Chile, Universidad de la Frontera, Facultad de Ciencias Agropecuarias, 1999)
      En los suelos evaluados en este estudio junto con la determinación de la dinámica del carbono y la actividad biológica se determinó el status de algunos macroelementos esenciales. Entre los nutrientes de importancia se ...
    • Bunel Torrealba, Sergio; Ibarra, C.; Adan, L. (1969)
      The shift of the first and second spin allowed bands due to the stepwise replacement of the nitrogen atoms in a complex of Cr(III) of the CrN6 type by oxygen atoms of water or of carboxylic groups is analyzed in terms of ...
    • Bunel Torrealba, Sergio; Ibarra, Carmen; Adán, L. (Pergamon Press, 1969)
      The shift of the first and second spin allowed bands due to the stepwise replacement of the nitrogen atoms in a complex of Cr(III) of the CrN6 type of oxigen atoms of water or of carboxylic groups is analized in terms of ...
    • Pizarro, Marcela; Troncoso Cotal, Rodrigo; Martínez, Gonzalo J.; Chiong Lay, Mario; Castro, Pablo F.; Lavandero González, Sergio (Elsevier, 2016)
      Doxorubicin (Doxo) is one of the most effective anti-neoplastic agents but its cardiotoxicity has been an important clinical limitation. The major mechanism of Doxo-induced cardiotoxicity is associated to its oxidative ...
    • Pérez, Patricia; Zapata Torres, Gerald; Parra Mouchet, Julia; Contreras Ramos, Renato (John Wiley and Sons Inc., 1999)
      The effect of the basicity of methyl-amines on hydrogen bonding (HB) with HCOOH is examined in both gas and solution phases. In the gas phase, the strength of HB may be related to the proton affinity (PA) difference between ...
    • Pérez, M. De Los A.Arada; Yazdani-Pedram Zobeiri, Mehrdad (2013)
      ABSTRACT Chloride selective polymeric liquid membrane electrode has been developed by using Bis-(2-ethylhexyl) Sebacate (DOS) as plasticizer and 2-[5-(4-nitrophenyl) furyl]-4,5-diphenyl imidazole (FFDFIN) as ionophore. ...
    • Roa, Luis J.; Báez Contreras, María Estrella (Sociedad Chilena de Química, 2003)
      The feasibility of MASE application in the determination of Bensulfuron-methyl (BSM) in soils with different organic matter content, consequently with a different capability to absorb this herbicide is studied. Hydrolysis ...
    • Aránguiz Urroz, Pablo Daniel; Canales Urriola, Jimena Andrea; Copaja, Miguel; Troncoso Cotal, Rodrigo; Vicencio Bustamante, José Miguel; Carrillo Ballesteros, Constanza Carolina; Lara Peñaloza, Hernán; Lavandero González, Sergio; Díaz Araya, Guillermo (ELSEVIER SCIENCE BV, 2011-01)
      Autophagy is a physiological degradative process key to cell survival during nutrient deprivation, cell differentiation and development. It plays a major role in the turnover of damaged macromolecules and organelles, and ...
    • Hidalgo, Mauricio; Steiner, Jeannette; Eyzaguirre, Jaime (PORTLAND PRESS, 1992-04)
      Beta-glucosidade was purified from the culture supernatant of penicillium purpurogenum. The purified enzyme was homogeneous on both nondenaturing and sodium dodecyl sulfate (SDS)-polyacrylamide gel electrophoresis. The ...
    • Letelier, M. E.; Hidalgo Castro, Felipe Augusto; López Valladares, Miguel; Ibacache, N.; Pérez, C.; Brunner, J.; González, J.; Gutmann, R.; Lazo-Henríquez, C.; Gallardo Garrido, Carlos Andrés; Molina Berríos, Alfredo Enrique; Ossandón, E. (Elsevier GmbH, 2017)
      © 2017 Elsevier GmbH Nitrofurantoin (NFT), an antimicrobial drug used for the treatment of uncomplicated lower urinary tract infections, produces gastrointestinal adverse effects that compromise treatment compliance. These ...
    • Anguita, Rodrigo; Nazar, Cristobal; Kobus, Rudolf; Salinas, Alejandro; Astete, Maria (Elsevier B.V., 2019)
    • Link, D. R.; Clark, N. A.; Ostrovskii, B. I.; Soto Bustamante, Eduardo (AMERICAN PHYSICAL SOC, 2000-01)
      Thin freely suspended films of a mixture of an achiral side-chain liquid crystal polymer and its monomer have been studied with depolarized reflected light microscopy. We observe that regions with an odd number of bilayers ...
    • Gutiérrez, Eunices; Benites, Julio; Valderrama, Jaime; Buc Calderón, Pedro; Verrax, Julien; Nova Martínez, Esteban; Villanelo Lizana, Felipe; Maturana Middleton, Daniel; Escobar, Cristian; Lagos Mónaco, Rosalba; Monasterio Opazo, Octavio (Elsevier, 2015)
      Dihydroxynaphthyl aryl ketones 1e5 have been evaluated for their abilities to inhibit microtubule assembly and the binding to tubulin. Compounds 3, 4 and 5 displayed competitive inhibition against colchicine binding, and ...
    • Polanco, R.; Lobos, S.; Vicuña E., Rafael (ELSEVIER SCIENCE INC, 2002-04-16)
      The white rot basidiomycete Ceriporiopsis subvermispora secretes the ligninolytic enzymes manganese-dependent peroxidase (MnP) and laccase to the extracellular medium. The promoter region of the laccase gene (Cs-lcsl) ...