Resultados globales: 7 registros encontrados en 0.02 segundos.
Artículos, Encontrados 7 registros
Artículos Encontrados 7 registros  
1.
11 p, 773.1 KB Fabrication of well-ordered silicon nanopillars embedded in a microchannel : Via metal-assisted chemical etching: A route towards an opto-mechanical biosensor / Solís Tinoco, Verónica Iraís (Institut Català de Nanociència i Nanotecnologia) ; Márquez, Salomón (Institut Català de Nanociència i Nanotecnologia) ; Sepúlveda Martínez, Borja (Institut Català de Nanociència i Nanotecnologia) ; Lechuga, Laura M. (Institut Català de Nanociència i Nanotecnologia)
Ordered nanopillars have been used as a smart configuration to design and fabricate localized surface plasmon resonance (LSPR) sensors. Importantly, these nanostructures can be integrated within microfluidic channels as a novel opportunity to enhance the response of biosensors and also to control the fluid flow by modifying the wettability surface of the walls. [...]
2016 - 10.1039/c6ra15485a
RSC advances, Vol. 6, Issue 88 (2016) , p. 85666-85674  
2.
22 p, 260.1 KB Visible ozone-like injury, defoliation, and mortality in two Pinus uncinata stands in the Catalan Pyrenees (NE Spain) / Díaz de Quijano Barbero, Maria (Centre de Recerca Ecològica i Aplicacions Forestals) ; Kefauver, Shawn (Centre de Recerca Ecològica i Aplicacions Forestals) ; Ogaya Inurrigarro, Romà (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Vollenweider, Pierre (Swiss Federal Institute for Forest, Snow and Landscape Research WSL) ; Ribas Artola, Àngela (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Ozone concentrations in the Pyrenees have exceeded the thresholds for forest protection since 1994. We surveyed the severity of visible O₃ injuries, crown defoliation, and tree mortality of Pinus uncinata, the dominant species in subalpine forests in this mountain range, along two altitudinal and O₃ gradients in the central Catalan Pyrenees and analysed their relationships with the local environmental conditions. [...]
2016 - 10.1007/s10342-016-0964-9
European journal of forest research, Vol. 135, Issue 4 (Aug. 2016) , p. 687–696  
3.
27 p, 1001.3 KB Atmospheric pollutants in peri-urban forests of Quercus ilex : evidence of pollution abatement and threats for vegetation / García-Gómez, Héctor (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya)) ; Aguillaume Rodríguez-O'connor, Laura (Centre de Recerca Ecològica i Aplicacions Forestals) ; Izquieta-Rojano, Sheila (Institut de Diagnosi Ambiental i Estudis de l'Aigua) ; Valiño, Fernando (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya)) ; Àvila i Castells, Anna (Universitat Autònoma de Barcelona) ; Elustondo, David (Universidad de Navarra. Laboratorio Integrado de Calidad Ambiental) ; Santamaría Ulecia, Jesús Miguel (Universidad de Navarra. Laboratorio Integrado de Calidad Ambiental) ; Alastuey, Andrés (Institut de Diagnosi Ambiental i Estudis de l'Aigua) ; Calvete-Sogo, Héctor (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya)) ; González-Fernández, Ignacio (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya)) ; Alonso, Rocío (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya))
Peri-urban vegetation is generally accepted as a significant remover of atmospheric pollutants, but it could also be threatened by these compounds, with origin in both urban and non-urban areas. To characterize the seasonal and geographical variation of pollutant concentrations and to improve the empirical understanding of the influence of Mediterranean broadleaf evergreen forests on air quality, four forests of Quercus ilex (three peri-urban and one remote) were monitored in different areas in Spain. [...]
2016 - 10.1007/s11356-015-5862-z
Environmental science and pollution research, Vol. 23, issue 7 (Apr. 2016) , p. 6400–6413  
4.
4 p, 232.3 KB Effects of high-field electrical stress on the conduction properties of ultra-thin La2O3 films / Miranda, Enrique Alberto (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Molina, J. (Tokyo Institute of Technology. Frontier Collaborative Research Center) ; Kim, Y. (Tokyo Institute of Technology. Frontier Collaborative Research Center) ; Iwai, H. (Tokyo Institute of Technology. Frontier Collaborative Research Center) ; American Physical Society
Electron transport in high-field stressed metal-insulator-silicon devices with ultrathin (<5nm) lanthanum oxide layers is investigated. We show that the leakage current flowing through the structure prior to degradation is direct and Fowler-Nordheimtunneling conduction, while that after stress exhibits diode-like behavior with series and parallel resistances. [...]
2005 - 10.1063/1.1944890
Applied physics letters, Vol. 86, Issue 23 (June 2005) , p. 232104/1-232104/3  
5.
4 p, 539.9 KB Exchange biasing and electric polarization with YMnO3 / Martí Rovirosa, Xavier (Institut de Ciència de Materials de Barcelona) ; Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona) ; Hrabovsky, D. (Institut de Ciència de Materials de Barcelona) ; Fábrega Sánchez, Lourdes (Institut de Ciència de Materials de Barcelona) ; Ruyter, A. (Institut de Ciència de Materials de Barcelona) ; Fontcuberta i Griñó, Josep (Institut de Ciència de Materials de Barcelona) ; Laukhin, V. (Institut de Ciència de Materials de Barcelona) ; Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física) ; García Cuenca, M. V. (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Ferrater Martorell, Cèsar (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Varela Fernández, Manuel, 1956- (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Vilà, A. (Universitat de Barcelona. Departament d'Electrònica) ; Lüders, Ulrike Anne (LNMH ONERA-CNRS (Toulouse, França)) ; Bobo, Jean-François (LNMH ONERA-CNRS (Toulouse, França)) ; American Physical Society
We report on the growth and functional characterizations of epitaxialthin films of the multiferroic YMnO3. We show that using Pt as a seed layer on SrTiO3(111) substrates, epitaxialYMnO3films (0001) textured are obtained. [...]
2006 - 10.1063/1.2234285
Applied physics letters, Vol. 89, Issue 3 (July 2006) , p. 032510/1-032510/3  
6.
4 p, 484.5 KB Strain tuned magnetoelectric coupling in orthorhombic YMnO3 thin films / Martí Rovirosa, Xavier (Institut de Ciència de Materials de Barcelona) ; Fina Martínez, Ignasi (Institut de Ciència de Materials de Barcelona) ; Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física) ; Ferrater Martorell, Cèsar (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Varela Fernández, Manuel, 1956- (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Fábrega Sánchez, Lourdes (Institut de Ciència de Materials de Barcelona) ; Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona) ; Fontcuberta i Griñó, Josep (Institut de Ciència de Materials de Barcelona)
Orthorhombic YMnO3epitaxialthin films were grown on Nb(0. 5%)-doped SrTiO3(001) substrates. Film's thickness was varied to tune the epitaxial strain. Structural and magnetic properties are well correlated, presenting a more pronounced ferromagnetic behavior as the unit cell becomes more distorted. [...]
2009 - 10.1063/1.3238287
Applied physics letters, Vol. 95, Issue 14 (October 2009) , p. 142903/1-142903/3  
7.
11 p, 165.7 KB Química, Educación ambiental y vida cotidiana : el ozono troposférico / Borsese, Aldo ; Esteban, Soledad
Los problemas medioambientales, tan extendidos actualmente, imponen la necesidad de una educación en ese sentido desde los primeros niveles escolares. Por otra parte, la conexión de los contenidos curriculares, y muy en especial los de ciencias, con los fenómenos de la vida real es una tendencia de los enfoques de enseñanza de los últimos tiempos. [...]
Nowadays environmental problems are growing so much that an education in this direction since the fi rst school levels has become a necessity. On the other hand the connection between the curricular contents, and specially the scientifi c ones, with daily life phenomena constitutes a trend of the teaching approaches of the last years. [...]

2005
Enseñanza de las ciencias, V. 23 n. 2 (2005) p. 251-261  

¿Le interesa recibir alertas sobre nuevos resultados de esta búsqueda?
Defina una alerta personal vía correo electrónico o subscríbase al canal RSS.