Now showing items 3303-3322 of 4966

    • 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 ...
    • Babul Cattán, Jorge; Stellwagen, Earle (1972)
      Absorption spectral, circular dichroic spectral, and viscosity measurements indicate that the compact low-spin conformation characteristic of native cytochrome c is quantitatively recovered from its extended high-spin ...
    • Spinella, M. R.; Bernath, M.; Dragún, O.; Massmann, H. (1996)
      A theoretical evaluation of inelastic transition amplitudes corresponding to collisions between low-energy electrons (up to 5 eV) and small metallic clusters is presented. The target is excited into a particle-hole state ...
    • Diaz, M. A.; Oppenheim, M.; Semeter, J. L.; Zettergren, M. (Blackwell Publishing Ltd, 2011)
      An electrostatic parallel particle-in-cell (EPPIC) code that allows for particle beam injections and multiple boundary conditions is used to investigate the beam-plasma interaction and its manifestations in the incoherent ...
    • Molina, Carolina; Toro Araya, Richard; Morales Segura, Raúl; Manzano, Carlos; Leiva Guzmán, Manuel (Springer, 2017-06)
      This study analyzed air quality in terms of the concentrations of sub-10 mu m (PM10) and sub-2.5 mu m particulate matter (PM2.5) recorded at 23 automated public monitoring stations located in 16 cities in south-central ...
    • Silva, Jose; Rojas, Jhojan; Norabuena, Magdalena; Molina, Carolina; Toro, Richard A.; Leiva-Guzmán, Manuel A. (Springer International Publishing, 2017)
      © 2017, Springer International Publishing AG. The temporal and spatial trends in the variability of PM10 and PM2.5 from 2010 to 2015 in the metropolitan area of Lima-Callao, Peru, are studied and interpreted in this work. ...
    • Castro, Sergio A.,; Rojas Venegas, Pablo; Vila Pinto, Irma; Habit, Evelyn; Pizarro Konczak, Jaime; Abades, Sebastián; Jaksic, Fabián M. (Public Library Science, 2020)
      Aim Exotic species' introductions together with extinction of native species represent the main mechanisms driving biotic homogenization of freshwater fish assemblages around the world. While generally ichtyofaunistic ...
    • Moreno Moncada, Patricio; Alloway, B.; Villarosa, G.; Outes, V.; Henríquez, W.; Pol-Holz, R. de; Pearce, N. (Geological Soc Amer, 2015)
      Volcan Chaitan (southern Chile, similar to 43 degrees S) initiated an historically unprecedented eruption in A.D. 2008, surprising the local inhabitants, Chilean and Argentine authorities, and the geologic community. ...
    • Tejos, Ricardo; Rodríguez Furlán, Cecilia; Adamowski, Maciej; Sauer, Michael; Norambuena Morales, Lorena; Friml, Jiri (Company of Biologists, 2018)
      Coordinated cell polarization in developing tissues is a recurrent theme in multicellular organisms. In plants, a directional distribution of the plant hormone auxin is at the core of many developmental programs. A feedback ...
    • Moreno, Juan; Martínez, Juan Gabriel; Morales, Judith; Lobato, Elisa; Merino, Santiago; Tomás, Gustavo; Vásquez Salfate, Rodrigo; Möstl, Erich; Osorno, José L. (Blackwell, 2010)
      For sexual selection to operate in monogamous species, males of poor quality in some factor like age, ornamentation, condition or aggressiveness, should lose paternity compared with higher quality males. We tested this ...
    • Catalán, Tamara P.; Barceló, Matías; Niemeyer, Hermann M.; Kalergis, Alexis M.; Bozinovic, Francisco (2011)
      Background: Feeding habits and dietary nutritional content may play a key role in pathogendependent foraging ecology, because mounting an effective immune response is costly for the host. Hypothesis: Since immune defence ...
    • Krebs, Christian F.; Reimers, Daniel; Zhao, Yu; Paust, Hans-Joachim; Bartsch, Patricia; Núñez, Sarah; Rosemblatt, Mariana V.; Hellmig, Malte; Kilia, Christoph; Borchers, Alina; Enk, León U. B.; Zinke, Michael; Becker, Martina; Schmid, Joanna; Klinge, Stefanie; Wong, Milagros N.; Puelles, Víctor G.; Schmidt, Constatin; Bertram, Tabea; Stumpf, Natascha; Hoxha, Elion; Meyer-Schwesinger, Catherine; Lindenmeyer, Maja T.; Cohen, Clemens D.; Rink, Michael; Kurts, Christian; Franzenburg, Sören; Koch-Nolte, Friedrich; Tur, Jan-Eric; Riedel, Jan Hendrik; Huber, Samuel; Gagliani, Nicola; Huber, Tobias B.; Wiech, Thorsten; Rohde, Holger; Bono Merino, María Rosa; Bonn, Stefan; Panzer, Ulf; Mittrücke, Hans-Willi (American Association Advancement Science, 2020)
      Although it is well established that microbial infections predispose to autoimmune diseases, the underlying mechanisms remain poorly understood. After infection, tissue-resident memory T (T-RM) cells persist in peripheral ...
    • Sandvig, Erik M.; Quilodrán, Claudio S.; Aguirre, Francisco; Rivero de Aguilar, Juan; Barroso, Omar; Vásquez, Rodrigo A.; Rozzi, Ricardo (SciELO Agencia Nacional de Investigacion y Desarrollo (ANID), 2020)
    • Muñoz, Ariel A.; Barichivich, Jonathan; Christie, Duncan A.; Dorigo, Wouter; Sauchyn, David; González-Reyes, Álvaro; Villalba, Ricardo; Lara, Antonio; Riquelme, Natalia; González, Mauro E. (Blackwell Publishing, 2014)
      Araucaria araucana (Araucaria) is a long-lived conifer growing along a sharp west-east biophysical gradient in the Patagonian Andes. The patterns and climate drivers of Araucaria growth have typically been documented on ...
    • Sommerfeld, Andreas; Senf, Cornelius; Buma, Brian; D’Amato, Anthony W.; Després, Tiphaine; Díaz Hormazábal, Ignacio; Fraver, Shawn; Frelich, Lee E.; Gutiérrez, Álvaro G.; Hart, Sarah J.; Harvey, Brian J.; He, Hong S.; Hlásny, Tomáš; Holz, Andrés; Kitzberger, Thomas; Kul (Nature Publishing Group, 2018)
      © 2018, The Author(s). Increasing evidence indicates that forest disturbances are changing in response to global change, yet local variability in disturbance remains high. We quantified this considerable variability and ...
    • Russell, G. B.; Bowers, W. S.; Keesing, V.; Niemeyer, H. M.; Sevenet, T.; Vasanthaverni, S.; Wratten, S. D. (2000)
      Nothofagus species from Chile and New Zealand were surveyed in the field for invertebrate abundance and leaf feeding damage and in the laboratory for antifeedant activity against leafrollers (Ctenopsteustis obliquana, ...
    • Moreno, Rodrigo A.; Hernández, Cristián; Rivadeneira, Marcelo; Vidal, Marcela A.; Rozbaczylo, Nicolás (BLACKWELL, 2006-04)
      Aim In this study we evaluate patterns of endemism for benthic polychaete species along the southeastern Pacific coast of Chile. Our goals were (1) to describe latitudinal gradients of endemism and identify areas of high ...
    • Becerra, Pablo I.; Simonetti Zambelli, Javier Andrés (2013)
      A pesar de que varios estudios han observado que la fragmentación del hábitat facilita la invasión de especies exóticas, trabajos realizados en distintos taxa han observado patrones diferentes. Lamentablemente, el uso de ...
    • González Wevar, Claudio; Hüne, Mathias; Rosenfeld, Sebastián; Saucède, Thomas; Féral, Jean Pierre; Mansilla, Andrés; Poulin, Elie (Taylor and Francis Ltd., 2016)
      © 2016 Biodiversity Conservancy International.The biogeography of the Southern Ocean reflects complex interactions between major macro-evolutionary forces and biotic elements. Major gateway openings, the establishment of ...
    • Etisham-Ul-Haq, M.; Allnutt, T. R.; Smith Ramírez, Cecilia; Gardner, M. F.; Armesto, Juan J.; Newton, A. C. (Academic Press, 2001)
      Berberidopsis corallina Hook. f. (Berberidopsidaceae) is a threatened vine, endemic to the temperate rainforests of southern Chile. A RAPD analysis was carried out to assess the extent of genetic variation in remaining ...