Now showing items 3582-3601 of 8176

    • Urzúa, Alejandro; Rodríguez, Ronald; Cassels Niven, Bruce (Pergamon Journals Ltd., 1987-01-25)
      8attus archidamas larvae reared on Aristolochia chilensis sequester aristolochic acids selectively and independently of lipophilícíty. A considerable proportion of the ingasted acids can be recovered from the excreta, but ...
    • Muñoz, Yorka; Fuenzalida, Karen; Bronfman, Miguel; Gatica Rossi, Héctor; Sepúlveda, Marcelo; Bacigalupo Vicuña, Juan; Roth Metcalfe, Alejandro Darío; Delgado Arriagada, Ricardo (2013)
      Phototransduction, the mechanism underlying the electrical response to light in photoreceptor cells, has been thoroughly investigated in Drosophila melanogaster, an essential model in signal transduction research. These ...
    • Simonetti Zambelli, Javier Andrés; Grez Villarroel, Audrey; Vergara, Pablo M. (Editorial Universitaria, 2018)
      El compromiso de Chile por el cuidado de la diversidad biológica y la sustentabilidad alcanza también a la industria forestal, particularmente, a la del pino Radiata o Monterrey, muy extendida en el sur de Chile. Pocos ...
    • Espinoza, Analia; Contreras, Rodrigo; Zúñiga, Gustavo E.; Herrera, Raul; Moya León, María Alejandra; Norambuena Morales, Lorena; Handford, Michael (Frontiers Media, 2016)
      White Chilean strawberries (Fragaria chiloensis) are non-climacteric fruits, with an exotic color and aroma. In order to discover genes involved in the development of these fruits, we identified a fragment of a gene encoding ...
    • Díaz,; Spodine Spiridonova, Evgenia; Moreno,; Arancibia, (Sociedad Chilena de Quimica, 2000)
      Reaction of CpFe(dppe)I with dithiopyridine in methanol and in presence of NH4PF6 affords the new mixed valence complex {[CpFe(dppe)]2 - n - S - Py}(PF6)2 (1 ). Observation of an intervalence electron transfer affords the ...
    • Orellana, W.; Miwa, R. H. (2006-08-07)
      The stability, electronic and magnetic properties of Fe atoms adsorbed on the self-assembled Bilines nanostructure on the H/Si(001) surface are addressed by spin-density functional calculations. Our results show that Fe ...
    • Orellana, W.; Miwa, R. H. (AMER INST PHYSICS, 2006-08-28)
      The stability and electronic and magnetic properties of Fe atoms adsorbed on the self-assembled Bi-line nanostructure on the H/Si(001) surface are addressed by spin-density functional calculations. Our results show that ...
    • Navarro, Roberto E.; Muñoz Gálvez, Víctor; Valdivia Hepp, Juan; Moya Fuentes, Pablo (IOP Publishing, 2020)
      Wave-particle interactions are believed to be one of the most important kinetic processes regulating the heating and acceleration of solar wind plasma. One possible explanation for the observed preferential heating of alpha ...
    • Escalona Balboa, Yerko Ignacio (Universidad de Chile., 2016)
      Las conexina son una familia de proteinas de vertebrados que constituyen los canales de uniones en hendidura o gap Junclion channels (GJC.) Etos canales conectan el citoplasma de dos células adyacentes, ya que atraviesan ...
    • Robledo Veloso, Gonzalo (2009)
      We apply basic tools of control theory to a chemostat model that describes the growth of one species of microorganisms that consume a limiting substrate. Under the assumption that available measurements of the model have ...
    • Ríos, Juan Manuel; Barceló, Gonzalo F.; Narváez, Cristóbal; Maldonado, Karin; Sabat Kirkwood, Alejandro Pablo (Springer, 2014)
      Specific fatty acids (FA) such as unsaturated (UFA) and saturated (SFA) fatty acids contained in foods are key factors in the nutritional ecology of birds. By means of a field and experimental approach, we evaluated the ...
    • Costa Arbulú, César; Gianoli, Ernesto; González, Wilfredo L.; Niemeyer Marich, August (2001)
      Feeding by the aphid Sipha flava produces a reddish spot on mature leaves of Sorghum halepense. The present work is aimed at determining whether this plant response entails induced resistance against the aphid. Old and ...
    • Ibáñez Carvajal, Christian; Chong Lay-Son, Javier (Cambridge University Press, 2008)
      In this research we studied the diet of Enteroctopus megalocyathus from three principal locations of the octopus fishery (Ancud, Quellón and Melinka) in southern Chile. The gastric contents of 523 individuals, collected ...
    • Poblete Quintanilla, Yanina del Carmen; Botero Delgadillo, Esteban; Espíndola Hernández, Pamela Andrea; Sudel Carrasco, Gabriela Paz; Vásquez Salfate, Rodrigo Alfonso (Wiley, 2021)
      Extra-pair behavior is present in 76% of socially monogamous bird species with biparental care. This behavior may produce costs to females related to a reduction in paternal care. We estimated the percentage of extra-pair ...
    • Llanos Silva, Jaime (Universidad de Chile., 1977)
      La reacción del m-xileno con radicales fenilo proporciona tres compuestos fenilados : 2,6-dimetil- ; 2 , 4-dimetil- y 3 , 5-dimetilbifelino, además del producto de abstracción de hidrogeno : 3 ,3’ - dimetilbibencilo. La ...
    • González Navarrete, Benjamín (Universidad de Chile, 2014)
      Este seminario de titulo fue desarollado en la Facultad de Química y Biología de la Universidad de Santiago de Chile y tuvo por objetivo determinar la importancia de la fuente móvil asociada a la emisión de los nitrofenoles ...
    • Guerrero Caballero, Eunice Marisol (Universidad de Chile, 2014)
      El daño del escolito del olivo, Hylesinus oleiperda (Coleoptera: Curculionidae) es hecho por las larvas que horadan la madera sub-corticalmente, ocasionando marchitez del follaje y muerte de ramillas productivas. Según ...
    • Smith Ramírez, Cecilia (Universidad de Chile, 1992)
      El objetivo de este estudio fue determinar los patrones estacionales de floración y fructificación de las especies del bosque de Chiloé, diferenciando las etapas de inducción floral (yemas) síntesis, fruto inmaduro y fruto ...
    • Mancilla Palma, Enrique Salvador (Universidad de Chile, 1989)
      Las plantas producen sus diferentes estructuras a través de la actividad de sus meristemas. Así, la muerte, latencia o multiplicación de los meristemas tiene importantes consecuencias en su morfología .El follaje, que es ...
    • Greene, Michael P.; Kiwi Tichauer, Miguel (1972)
      In terms of the usual RKKY indirect exchange interaction, the spiral antiferromagnetic phase of Europium cannot be attributed to a 'nesting' of opposite faces of the tetracube portion of the Fermi surfaces. © 1972.