Now showing items 3120-3139 of 4966

    • Venegas Yazigi, Diego; Mirza, Hameed; Lever, A. B.P.; Lough, Alan J.; Costamagna, Juan; Vega, Andrés; Latorre, Ramón (International Union of Crystallography, 2000)
      © 2000 International Union of Crystallography.The Ru atom in the title compound, [RuCl2{P(C6H5)3}2-{C6H4(NH)2}]·1.33CH3OH·0.33CH2Cl2, shows a six-coordinate octahedral geometry, with a trans arrangement of the triphenylphosphine ...
    • Casares, Fernando; Allende Connelly, Miguel; Felix de Celis, José; González Reyes, Acaimo; Martínez Morales, Juan Ramón (Company of Biologists, 2020)
    • Vicencio Poblete, Rodrigo; Cantillano, Camilo; Morales Inostroza, Luis; Real, Bastián; Mejía Cortés, Cristian; Weimann, Steffen; Szameit, Alexander; Molina Gálvez, Mario (American Physical Society, 2015)
      We demonstrate the first experimental realization of a dispersionless state, in a photonic Lieb lattice formed by an array of optical waveguides. This engineered lattice supports three energy bands, including a perfectly ...
    • Cantillano, Camilo; Morales Inostroza, Luis; Real, Bastián; Rojas Rojas, Santiago; Delgado, Aldo; Szameit, Alexander; Vicencio, Rodrigo A. (Elsevier, 2017)
      We experimentally study the transport properties of dipolar and fundamental modes on one dimensional (1D) coupled waveguide arrays. By carefully modulating a wide optical beam, we are able to effectively excite dipolar or ...
    • Cantillano, Camilo; Mukherjee, S.; Morales Inostroza, Luis; Real, Bastián; Cáceres Aravena, G.; Hermann Avigliano, C.; Thomson, R. R.; Vicencio Poblete, Rodrigo (IOP Publishing Ltd, 2018)
      We report on the experimental realization of a quasi-one-dimensional photonic graphene ribbon supporting four flat-bands (FBs). We study the dynamics of fundamental and dipolar modes, which are analogous to the s and p ...
    • Szameit, Alexander; Molina Gálvez, Mario; Heinrich, Matthias; Dreisow, Felix; Keil, Robert; Nolte, Stefan; Kivshar, Yuri S. (OPTICAL SOC AMER, 2010-08-15)
      We study experimentally light localization at phase-slip waveguides and at the intersection of phase-slips in a two-dimensional (2D) square photonic lattice. Such system allows to observe a variety of effects, including ...
    • Ramírez Sarmiento, César A.; Báez, Mauricio; Wilson, Christian A.M.; Babul Cattán, Jorge; Komives, Elizabeth; Guixé Leguía, Victoria Cristina (2013)
      Phosphofructokinase-2 is a dimeric enzyme that undergoes cold denaturation following a highly cooperative N2 2I mechanism with dimer dissociation and formation of an expanded monomeric intermediate. Here, we use intrinsic ...
    • Rosberg, Christian R.; Neshev, Dragomir N.; Krolikowski, Wieslaw; Mitchell, Arnan; Vicencio Poblete, Rodrigo; Molina Gálvez, Mario; Kivshar, Yuri S. (AMERICAN PHYSICAL SOC, 2006-08-25)
      We report on the observation of surface gap solitons found to exist at the interface between uniform and periodic dielectric media with defocusing nonlinearity. We demonstrate strong self-trapping at the edge of a LiNbO3 ...
    • Naether, U.; Kartashov, Y. V.; Vysloukh, V. A.; Nolte, S.; Tünnermann, A.; Torner, L.; Szameit, A. (OPTICAL SOC AMER, 2012-02-15)
      We study the gradual transition from one-dimensional (1D) to two-dimensional (2D) Anderson localization upon transformation of the dimensionality of disordered waveguide arrays. An effective transition from a 1D to a 2D ...
    • Barceló, Matías; Simonetti Zambelli, Javier Andrés (Neotropical Ornithological Society, 2017)
      The Chestnut-throated Huet-huet (Pteroptochus castaneus) is a poorly known species, endemic to Chile and Argentina. Here we describe observations made during eight days on a nest with two nestlings of the Chestnut-throated ...
    • Barceló, Matías; Simonetti Zambelli, Javier Andrés (Neotropical Ornithological Society, 2017)
      © The Neotropical Ornithological Society. The Chestnut-throated Huet-huet (Pteroptochus castaneus) is a poorly known species, endemic to Chile and Argentina. Here we describe observations made during eight days on a nest ...
    • Medrano, Fernando; Cerpa, Patrich; Reyes, Diego; Cuevas, Cristian (Sociedade Brasileira Ornitologia, 2017)
      Although the Variable Hawk (Geranoaetus polyosoma) is a common and broadly distributed raptor in the Neotropics, its breeding ecology is almost unknown. Using video cameras, we collected data on the parental and nestling ...
    • Tarifa, Teresa; Azurduy, Carola; Vargas, Renzo R.; Huanca, Noemí; Terán, Jehizon; Arriaran, Greissy; Salazar, Claudia; Terceros, Lenny (2009)
      We report four opportunistic field observations of a species of Abrocoma in Polylepis besseri woodlands in Cochabamba Department, Bolivia. These observations sug-gest four significant aspects of Abrocoma sp. natural history: ...
    • Contreras, Paola; Faini, Francesca; Rojas, Maria Cecilia (2001)
      A simple separation method to obtain gibberellin standards is described.This includes isolation of the lactonic gibberellins GAg, GA4, GAy and GAgfrom Gibberella fujikuroi cultures by Chromatographie procedures and their ...
    • Vergara, Pablo M.; Meneses, Luis O.; Grez Villarroel, Audrey; Quiroz, Madelaine S.; Soto, Gerardo E.; Pérez-Hernández, Christian G.; Diaz, Paola A.; Hahn, Ingo J.; Fierro, Andrés (Springer Netherlands, 2017)
      © 2016, Springer Science+Business Media Dordrecht. Context: Interactions between landscape-scale processes and fine-grained habitat heterogeneity are usually invoked to explain species occupancy in fragmented landscapes. ...
    • Barria, Bernardita N.; Copaja Castillo, Sylvia; Niemeyer Marich, August (1991)
      The secondary metabolise 2,4-dihydroxy-1,4-benzoxazin-3-one (DIBOA) was found in seedlings of wild Hordeum species, but not of cultivated barley (Hordeum vulgare). DIBOA levels correlated negatively with performance of the ...
    • Baeza Cancino, Marcelo; Sanhueza, Mario A.; Cifuentes Guzmán, Víctor (SOC BIOLGIA CHILE, 2008)
      The secretion of proteinaceous toxins is a widespread characteristic in environmental and laboratory yeast isolates. a phenomenon called "killer system". The killer phenotype (K+) call be encoded by extrachromosomal genetic ...
    • Acevedo, Jorge; Aguayo-Lobo, Anelio; González, Alejandro; Haro, Daniela; Olave, Carlos; Quezada, Francisca; Martínez, Francisco; Garthe, Sarah; Cáceres, Benjamín (European Association for Aquatic Mammals, 2017)
    • Pizarro Aránguiz, N.; Galbán Malagón, C. J.; Ruiz Rudolph, Pablo; Araya Jordán, Carolina; Maddaleno, A.; San Martín Núñez, Betty (Elsevier Ltd, 2015)
      © 2014 Elsevier Ltd. Levels, congener profiles of PCDD/Fs, DL-PCBs and human exposure for these xenobiotics never have been reported in Chile. For that purpose 102 raw cow milk samples were collected from seven different ...
    • Pérez Villa, Andrea; David, Jorge; Fuentealba Rosas, Patricio; Restrepo, Albeiro (Elsevier B.V., 2011)
      Non-relativistic DFT (PW91, PBE, PB86) geometry optimizations followed by relativistic ZORA single point energy calculations on the neutral hexafluoride complexes of the series of actinides U, Np, Pu, Am, Cm, Bk, Cf, Es, ...