Browsing by Title Facultad de Ciencias
Now showing items 6183-6202 of 8181
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(Springer Netherlands, 2018)© 2018, Springer Nature B.V. This study examines the projections of hydroclimatic regimes and extremes over Andean basins in central Chile (∼ 30–40° S) under a low and high emission scenarios (RCP2.6 and RCP8.5, respectively). ...
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(2011)We give some conditions under which no two non-conjugate projective representations, in an algebra, of a given group can become conjugate over a separable extension of the base field. In particular, we show this is always ...
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(Institute animal reproduction food research, 2017)Vaginocervical stimulation (VCS) induces twice-daily prolactin (PRL) surges resulting in pseudopregnancy in the rat. Furthermore, activation of the extracellular signal-regulated kinase-1/2 (Erk-1/2) is involved in the ...
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(PLoS ONE, 2013)The Sonic Hedgehog (Shh) pathway is responsible for critical patterning events early in development and for regulating the delicate balance between proliferation and differentiation in the developing and adult vertebrate ...
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(Universidad de Chile, 2005)Los episodios críticos de material particulado constituyen el principal problema de contaminación atmosférica para las autoridades competentes, ya que la cantidad e intensidad de estos se ha mantenido en los últimos años, ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006-07-15)The lateral line system comprises an array of mechanosensory organs, the neuromasts, distributed over the body surface. Each neuromast consists of a patch of mechanosensory hair cells surrounded by support cells. We show ...
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(Universisdad de Chile, 2011)Se estudio el complejo Alstroemeria ligtu, especies endémicas de Chile, conformado por tres subespecie: A ligtu simsii, Aligtu incamata y A ligtus ligtu, las cuales presentan una distribución discontinua a lo largo de Chile ...
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(Universidad de Chile, 1985)
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(Universidad de Chile, 2003)Mostramos mediante una investigación teórica y numérica las propiedades de transferencias de energía de dos nuevos modelos de acopladores coherentes no-iineal.es: (1) Dos guras de onda no-lineales, donde la usual constante ...
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(American Institute of Physics, 2015)We use a particle-in-cell simulation to study the propagation of localized structures in a magnetized electron-positron plasma with relativistic finite temperature. We use as initial condition for the simulation an envelope ...
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(American Physical Society, 2018)© 2018 American Physical Society. A new definition of proper time, which may incorporate all of the fundamental interactions as well as the whole Poincaré group, is presented. The new proper time definition reduces to the ...
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(Elsevier, 1984)A calmodulin-Ca2+-stimulated cyclic nucleotide phosphodiesterase (EC 3.1.4.17) which hydrolyzed both cGMP and cAMP has been purified about 2000-fold from ovaries of the amphibian Xenopus laevis. Gel filtration through ...
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(1985)This paper presents the properties of a new fibre cement material formed by short ductile copper fibres randomly distributed in portland cement paste and compacted by compression to 35 MPa. The optimum percentage and the ...
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(2004)The reaction of [NPCl2]n first with 2,2′-dihydroxybiphenyl and K2CO3 or (R)-(+)-2,2′-dihydroxy-1,1′-binaphthyl and Cs2CO 3, and subsequently with HO-C6H4-CO 2Prn and Cs2CO3, gave the phosphazene copolymers {[NP(O2C12H8)] ...
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(Elsevier, 2013)The structural configurations and magnetic properties of zig-zag nanoribbons and nanowires of Fe8−NCoN, for 0≤N≤8, are calculated within the density functional theory. Both, for the zig-zag nanoribbons and the nanowires, ...
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(Cell Press, 2018)
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(Universidad de Chile, 2021).Los resultados principales de esta tesis son los Teoremas 3.1 y 3.5 del Cap tulo 3. En el Cap tulo 2 se encuentran ordenados los resultados necesarios para lograr este objetivo. En la secci on 2.1 se presentan resultados ...
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(Universidad de Chile, 1966)
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(Universidad de Chile, 2018)
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(Universidad de Chile, 2016)The Salar de Ascotán was formed due to successive periods of drought that affected the Minchin paleolake 30,000 years ago. The salt flat is located at south latitude 21°27'01.9" and west longitude 68°15'8.5", it is also ...