Now showing items 841-851 of 851

    • Arias Bautista, José; Fernández Garay, María Soledad (ELSEVIER SCIENCE, 2003-03)
      Fabrication of mineralized structures is a widespread phenomenon among living organisms (e.g., shells, carapaces, spines, spicules, bones and teeth). These ceramic biocomposites consist of layered assemblies of minute ...
    • Neira Carrillo, Andrónico; Yazdani-Pedram Zobeiri, Mehrdad; Retuert de la Torre, Pedro Jaime; Díaz Dosque, Mario; Gallois, Sebastien; Arias Bautista, José (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2005-06-01)
      The biopolymer chitosan was chemically modified by grafting polyacrylamide or polyacrylic acid in a homogeneous aqueous phase using potassium persulfate (KPS) as redox initiator system in the presence of N,N-methylene-bi ...
    • Bello, Felio; Mejía, Astrid; Corena, María del Pilar; Ayala, Martha; Sarmiento, Ladys; Zúñiga Marti, Claudio; Palau, María (FUNDACO OSWALDO CRUZ, 2005-10)
      The present work describes the in vitro infection of a cell line Lulo, derived from Lutzomyia longipalpis embryonic tissue, by Leishmania chagasi promastigotes. This infection process is compared with a parallel one developed ...
    • Rozas, Marlene; Botto Mahan, Carezza; Coronado, Ximena; Ortiz Zúñiga, Sylvia; Cattan Ayala, Pedro; Solari Illescas, Aldo (AMER SOC TROP MED & HYGIENE, 2005-09)
      We report results of PCR-DNA based detection of Trypanosoma cruzi in wild mammal reservoirs from a chagasic area of Chile. We analyzed 157 blood samples from wild mammals including the marsupial Thylamis elegans and the ...
    • Tischendorf, Lutz; Grez Villarroel, Audrey; Zaviezo, Tania; Fahrig, Lenore (RESILIENCE ALLIANCE, 2005-06)
      We conducted a factorial simulation experiment to analyze the relative importance of movement pattern, boundary-crossing probability, and mortality in habitat and matrix on population density, and its dependency on habitat ...
    • Pokniak Ramos, José; Muñoz, Susana; Díaz, Nelson F.; Saldes, Andrea; Cornejo, Sergio (Universidad Austral de Chile, 2005)
      The objective of this study was to evaluate the effects of sex and two periods of feeding with a diet that included astaxanthin on productive performance, color and pigmentation of coho salmon (Oncorhynchus kisutch) at ...
    • Ferrés, Marcela; Abarca Villaseca, Katia; Godoy, Paula; García, Patricia; Palavecino, Elizabeth; Méndez, Gabriela; Valdés, Alicia; Ernst, Santiago; Thibaut, Julio; Koberg, Jurgen; Chanqueo, Leonardo; Vial, Pablo (SOC MEDICA SANTIAGO, 2005-12)
      Background: The availability of a serologic test for cat scratch disease in humans has allowed the diagnosis of an increasing number of cases of this disease in disease in Chile. Aim: To perform a serological survey for ...
    • Grez Villarroel, Audrey; Zaviezo, Tania; Reyes, Susana (SOCIEDAD BIOLOGIA CHILE, 2004-09)
      Habitat loss and fragmentation are considered as the main causes of biodiversity depression. Habitat loss implies a reduction of suitable habitat for organisms, and habitat fragmentation is a change in the spatial configuration ...
    • Bustamante Sánchez, Marcela A.; Grez Villarroel, Audrey; Simonetti Zambelli, Javier Andrés (SOCIEDAD BIOLOGIA CHILE, 2004-03)
      Habitat fragmentation may result in changes in species number and Population abundance among habitats that differ in area, structure, or edge characteristics. These changes, in turn, may result in alterations in ecosystem ...
    • Donoso, Denise S.; Grez Villarroel, Audrey; Simonetti Zambelli, Javier Andrés (ELSEVIER, 2004-01)
      The Maulino forest is a unique temperate ecosystem restricted to a small range of the coast of central Chile. This forest harbors many endemic species, and is threatened due to intensive deforestation and fragmentation. ...
    • Canals Lambarri, Mauricio; Atala, Cristian; Olivares Pérez-Montt, Ricardo; Guajardo, Francisco; Figueroa, Daniela P.; Sabat Kirkwood, Alejandro Pablo; Rosenmann Abramovich, Mario (COMPANY OF BIOLOGISTS LTD, 2005-10)
      We studied structure and function of the respiratory system in the bat Tadarida brasifiensis and compared it with those of two species of rodents, Abrothrix andinus and A. olivaceus. Tadarida brasiliensis had lower resting ...