Artículos de revistas: Recent submissions

Now showing items 4241-4260 of 4968

    • Origin and Early Development of the Posterior Lateral Line System of Zebrafish 
      Sarrazín, Andrés F.; Núñez, Viviana A.; Sapède, Dora; Tassin, Valériane; Dambly-Chaudiere, Christine; Ghysen, Alain (SOC NEUROSCIENCE, 2010-01-11)
      The lateral line system of teleosts has recently become a model system to study patterning and morphogenesis. However, its embryonic origins are still not well understood. In zebrafish, the posterior lateral line (PLL) ...
    • Bacterial diversity and occurrence of ammonia-oxidizing bacteria in the Atacama Desert soil during a "desert ... 
      Orlando, Julieta Laura; Alfaro, Marco; Bravo, Lorena; Guevara, Rafael; Carú Marambio, Margarita (PERGAMON-ELSEVIER SCIENCE LTD, 2010-04-08)
      The Atacama Desert, located in northern Chile, is one of the driest deserts on the Earth. However, in some years, short and sporadic rainfall in the southern end of this desert has increased the soil moisture that produces ...
    • Approximate quantum mechanical method for describing excitations and related properties of finite single-walled ... 
      Montero Alejo, A. L.; Fuentes, M. E.; Menéndez Proupin, Eduardo; Orellana, W.; Bunge, C. F.; Montero, L. A.; García de la Vega, José M. (AMER PHYSICAL SOC, 2010-06-07)
      Optical properties of three kinds of zigzag 5,0 , 13,0 , and 9,0 single-walled carbon nanotubes SWCNTs are studied using an approximate quantum mechanical method named complete neglect of differential overlap, which ...
    • The Revitalized Tau Hypothesison Alzheimer's Disease 
      Maccioni Baraona, Ricardo; Farías, Gonzalo; Morales, Inelia; Navarrete, Leonardo (Elsevier Inc., 2010-03-01)
      Many hypotheses have been raised regarding the pathophysiology of Alzheimer’s disease (AD). Because amyloid beta peptide (Ab) deposition in senile plaques appears as a late, nonspecific event, recent evidence points to tau ...
    • Arrival date and territorial behavior are associated with corticosterone metabolite levels in a migratory bird 
      Lobato, Elisa; Moreno, Juan; Merino, Santiago; Morales, Judith; Tomás, Gustavo; Martínez, Javier; Vásquez Salfate, Rodrigo; Kuchar, Alexandra; Möstl, Erich; Osorno, José Luis (SPRINGER, 2010-01-13)
      Glucocorticoids promote the mobilization of energy stores and they may facilitate the expression of energetically expensive functions. Early arrival on the breeding grounds in migratory species and territorial ...
    • Phenology of Tayloria dubyi (Splachnaceae) in the peadands of the Cape Horn Biosphere Reserve 
      Jofré, Jocelyn; Massardo, Francisca; Rozzi, Ricardo; Goffinet, Bernardo; Marino, Paul; Raguso, Robert; Navarro, Nelso P. (SOC BIOLGIA CHILE, 2009-10-21)
      Los bosques de la ecorregión subantártica de Magallanes incluyen una alta diversidad de briofitas, superando la diversidad de las plantas vasculares. A pesar de esto, estudios biológicos referentes a fenología de briofitas ...
    • POLLEN LIMITATION AND REPRODUCTIVE ASSURANCE IN THE FLORA OF THE COASTAL ATACAMA DESERT 
      González, Alejandra V.; Pérez, Fernanda (UNIV CHICAGO PRESS, 2010-03)
      Pollen limitation (PL) in plant populations is supposed to be particularly strong in variable pollinator environments. Here, we examined the extent of PL in the coastal Atacama Desert, where low and unpredictable rainfall ...
    • A methodological approach to assess the small mammal community diversity in the temperate rainforest of Patagonia 
      Fontúrbel, Francisco E. (ELSEVIER GMBH, 2009-03-19)
      Assessingsmallmammaldiversityisacommonprocedure,whichusuallyemployswidespreadstandardtechniques, for gatheringinformationforawiderangeofstudies.Traditionalmethods,however,maybebiasedagainstcapturing arborealmarsupials,suchas ...
    • Participation of book lungs in evaporative water loss in Paraphysa parvula, a migalomorph spider from Chilean Andes 
      Figueroa, D. P.; Sabat Kirkwood, Alejandro Pablo; Torres Contreras, Hugo; Veloso Iriarte, Claudio; Canals Lambarri, Mauricio (PERGAMON-ELSEVIER SCIENCE LTD, 2010-01-01)
      Small animals need efficient water conservation mechanisms for survival and reproduction, which is relevant for the spiders that have large book lungs with large respiratory surface. If lung evaporation is relevant to ...
    • Estación Biológica Senda Darwin: Investigación ecológica de largo plazo en la interfase ciencia-sociedad 
      Carmona, Martín R.; Aravena, J. C.; Bustamante Sánchez, Marcela A.; Celis Diez, Juan Luis; Charrier, Andrés; Díaz, Iván A.; Díaz Forestier, Javiera; Díaz, María F.; Gaxiola, Aurora; Gutiérrez, Alvaro G.; Hernández Pellicer, Claudia Cecilia; Ippi, Silvina; Jaña Prado, Rocío; Jara Arancio, Paola; Jiménez, Jaime; Manuschevich, Daniela; Necochea, Pablo; Núñez Avila, Mariela; Papic, Claudia; Pérez, Cecilia A.; Pérez, Fernanda; Reid, Sharon; Rojas, Leonora; Salgado, Beatriz; Smith Ramírez, Cecilia; Troncoso, Andrea; Vásquez Salfate, Rodrigo; Willson, Mary F.; Rozzi, Ricardo; Armesto, Juan J. (SOC BIOLOGIA CHILE, 2010-02-05)
      La Estación Biológica Senda Darwin (EBSD) constituye un centro de investigación inmerso en el paisaje rural del norte de la Isla de Chiloé (42º S), donde fragmentos del bosque siempreverde original coexisten con praderas ...
    • Comparison of the Oxygen Diffusing Capacity of the Picui Ground Dove (Columbina picui) with Other Doves of Chile 
      Alfaro, Carmen; Figueroa Pérez, Daniela; Sabat Kirkwood, Alejandro Pablo; Sallaberry Ayerza, Michel; Canals Lambarri, Mauricio (SOC CHILENA ANATOMIA, 2009-12-12)
      We studied the respiratory surface density and the thickness of the air-blood barrier in the Picui Ground Dove (Columbina picui), and compared it with Eared Dove (Zenaida auriculata) and Blacked-winged Ground Dove (Metropelia ...
    • Reproductive biology aspects of two species of the genus Gavilea (Orchidaceae, Chloraeinae) in populations ... 
      Valdivia, Carlos E.; Cisternas, Mauricio A.; Verdugo, Gabriela S. (EDICIONES UNIV, CONCEPCION, COMITE DE PUBLICACION, 2010-01-11)
      The extent to which plants depend on pollinators for outcross pollen transportation is a key issue in plant reproductive ecology. We evaluated the putative breeding system, floral display, and natural pollination in two ...
    • Adsorption of anionic amphiphilic polyelectrolytes onto amino-terminated solid surfaces 
      Urzúa Acevedo, Marcela; Briones, X. G.; Carrasco, L. P.; Encinas, M. V.; Petri, D. F. S. (ELSEVIER SCI LTD, 2010-06-02)
      The adsorption behavior of several amphiphilic polyelectrolytes of poly(maleic anhydride-alt-styrene) functionalized with naphthyl and phenyl groups, onto amino-terminated silicon wafer has been studied by means of null- ...
    • Comparative basal metabolic rate among passerines and the food habit hypothesis 
      Sabat Kirkwood, Alejandro Pablo; Ramírez Otárola, Natalia; Barceló, Gonzalo; Salinas, Jonathan; Bozinovic, Francisco (ELSEVIER SCIENCE INC, 2010-05-15)
      The food habit hypothesis (FHH) predicts that mass-independent BMR is associated with dietary traits. In spite of decades of research, the FHH remains controversial, in part because ambiguities surrounding diet categorization ...
    • Adsorption of poly-2-(dimethylamino) ethylmethacrylate-N-alkyl quaternized at the water/chloroform interface 
      Ríos, Hernán E.; González Navarrete, Javier; Peña, María L.; Sagredo, Claudio D.; Urzúa Acevedo, Marcela (ELSEVIER SCIENCE BV, 2010-05-04)
      The interfacial properties of poly-2-(dimethylamino) ethyl methacrylate-N-alkyl quaternized with octyl, decyl, dodecyl and tetradecyl bromide are studied from the chloroform to the water/chloroform interface. In order ...
    • Covariability of the Southern Westerlies and atmospheric CO2 during the Holocene 
      Moreno Moncada, Patricio; Francois, J. P.; Moy, C. M.; Villa Martínez, R. (Geological Society of America, 2010-03-11)
      A suite of mechanisms has been proposed to account for natural variations in atmospheric CO2 during the Holocene; all of which have achieved limited success in reproducing the timing, direction, and magnitude of change. ...
    • Breathers inone-dimensional binary metamaterial models 
      Lazarides, N.; Molina Gálvez, Mario; Tsironis, G. P. (ELSEVIER SCIENCE BV, 2010-07-15)
      The existenceandstabilityofdiscretebreathersisstudiedtheoreticallyforamodelmagnetic metamaterialcomposedofaperiodicbinaryarrayofsplit-ringresonatorswithresonancefrequency mismatch.Itisdemonstratedthatbreatherscanbeexci ...
    • Line Shapes in Infrared Absorption by Solids and by Atomic or Molecular Species Embedded in Solids 
      Lagos Infante, Miguel; Asenjo, Felipe A.; Hauyón, Roberto; Pastén, Denisse; Moya, Pablo S. (AMER CHEMICAL SOC, 2010-07-15)
      When the target is in the solid state, most infrared spectral features are manifestly asymmetric; hence, a line shape function well-grounded in theory is necessary to ascertain the net energy taken by the associated ...
    • Unique clusters ofArchaea inSalar deHuasco, an athalassohaline evaporitic basin of theChilean Altiplano 
      Dorador, Cristina; Vila Pinto, Irma; Remonsellez, Francisco; Imhoff, Johannes F.; Witzel, Karl-Paul (WILEY-BLACKWELL PUBLISHING, 2010-05-18)
      Analyses of clone libraries from water and sediments of different sites from Salar de Huasco, a high-altitude athalassohaline wetland in the Chilean Altiplano, revealed the presence of five unique clusters of uncultured ...
    • Single-crystalmicro/nanostructuresandthinfilmsoflamellarmolybdenum oxide bysolid-statepyrolysisoforganome ... 
      Díaz Valenzuela, Carlos; Lavayen, Vladimir; O’Dwyer, Colm (Elsevier Inc., 2010-05-15)
      The solid-statepyrolysisoforganometallicderivativesofacyclotriphosphazeneisdemonstratedtobea new, simpleandversatilesolid-statetemplatingmethodforobtainingsingle-crystalmicro-and nanocrystalsoftransitionandvalvemetalox ...