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Search Results: 1 - 10 of 114 matches for " TORREALBA "
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Las TIC y la metodología de proyectos de aprendizaje: Algunas experiencias en formación docente
Educere , 2008,
Abstract: in this paper some possible links and advantages of the combination of communication and information technologies (cit) and the methodology of learning projects are analyzed. the author shows some experiences on project execution with the help of cits through several years at the upel-maturín. finally, the achievements accomplished in the education of future teachers are analyzed, among them, some finished products such as audiovisuals and educational software where is clear that important changes occurred in self-esteem, confidence and transversality understanding by the students who participated.
Membrane's Discrete Spectrum and BRST Residual Symmetry in the Conformal Light Cone Gauge
R. Torrealba
Physics , 1998,
Abstract: In this work we present a proof of the discreteness of the spectrum for bosonic membrane, in a flat minkowski space. This may be useful to show the quantum mechanical consistence of others bosonics extended models. This proof includes the BRST residual symmetry and was directly performed over the discretized membrane model. The BRST residual invariant effective action is explicity constructed.
Using an Einstein's idea to explain OPERA faster than light neutrinos
Rafael Torrealba
Physics , 2011,
Abstract: The OPERA experiment has reported neutrinos, from the CNGS beam, that arrived to Gran Sasso Laboratory 60ns earlier that expected for light, within a statistical error margin of {\S}6:9 and a systemic error of {\S}7:4. Therefore, these neutrinos are faster than known velocity of the light in vacuum. These puzzling result could be explained by stimulated emission of neutrinos in the decay tunnel, in close analogy with the amplification of a LASER pulse.
"OPERA superluminal neutrinos explained by spontaneous emission and stimulated absorption"
Rafael Torrealba
Physics , 2011,
Abstract: In this work it is shown, that for short 3ns neutrino pulses reported by OPERA, a relativistic shape deforming effect of the neutrino distribution function due to spontaneous emission, produces an earlier arrival of 65.8ns in agreement with the reported 62.1ns\pm 3.7ns, with a RMS of 16.4ns explaining the apparent superluminal effect. It is also shown, that early arrival of long 10500ns neutrinos pulse to Gran Sasso, by 57.8ns with respect to the speed of light, could be explained by a shape deforming effect due to a combination of stimulated absorption and spontaneous emission, while traveling by the decay tunnel that acts as a LASER tube.
La Conservación Integral Alternativa desde el Sur: una visión diferente de la conservación
Torrealba,Isa; Carbonell,Fabricio;
Polis (Santiago) , 2008, DOI: 10.4067/S0718-65682008000200016
Abstract: after 10 years of effort as practitioners in latin american rural áreas, and as an endogenous proposal, where sustainability and human well-being are matched, we introduce the cia-sur (alternative integral conservation from the south) approach. we sketch the elements of this conceptual model in order to understand, from the latin american standpoint, what is causing the imbalance between nature and society. we sought to find the actual opportunities and threats of overcoming the environmental and social abyss that emerges when we put together development and conservation. we also redefine here the following terms: sustainable development, bio-cultural diversity, biological conservation, richness accumulation, life agrí culture and environmental policies, in order to find a non conventional visión of future conservationists styles in our región.
La hernia discal lumbar en el ni o Lumbar intervertebral disc hernia in a girl
Gonzalo Torrealba M
Revista chilena de pediatría , 1987,
Trombosis carotidea en el lactante
Revista chilena de pediatría , 1974,
Jornadas de Oto o 2002: Una visión actualizada sobre enfermedad pulmonar obstructiva crónica
Bernardita Torrealba J.
Revista Chilena de Enfermedades Respiratorias , 2002,
La Conservación Integral Alternativa desde el Sur: una visión diferente de la conservación
Isa Torrealba,Fabricio Carbonell
Polis : Revista de la Universidad Bolivariana , 2008,
Abstract: Esbozamos los elementos de un nuevo modelo conceptual para entender desde la perspectiva latinoamericana qué ocasiona el desbalance entre naturaleza y sociedad y vislumbrar así las verdaderas oportunidades y amenazas de soslayar el abismo entre lo ambiental y lo social al integrar efectivamente desarrollo y conservación. Como propuesta teórica endógena compatible con la perdurabilidad del bienestar humano y producto de 10 a os de investigación en el medio rural latinoamericano (sur), presentamos al enfoque Conservación Integral Alternativa. En este artículo además de considerar los temas de pobreza, población y neoliberalismo, entre otros, redefinimos los conceptos de desarrollo sustentable, diversidad biocultural y conservación biológica; los que, analizados a la luz de valores ancestrales, acumulación de riqueza, agricultura para la vida y políticas ambientales, arrojan un panorama diferente de la visión convencional de la conservación.
Voces de maestras en la provincia de Tarapacá: las silenciadas críticas al sistema de instrucción pública (Norte de Chile 1880-1900)
Benjamín Silva Torrealba
Cuadernos Interculturales , 2010,
Abstract: El presente artículo analiza las condiciones estructurales del funcionamiento de las primeras escuelas elementales fiscales asentadas en la Provincia de Tarapacá entre 1880- 1900, tomando como sujeto de investigación a las preceptoras instaladas en la zona y su práctica docente. Se establece una crítica al éxito del modelo de desarrollo educativo instaurado desde el Ministerio de Instrucción Primaria, y que tuvo como fin promover la civilización, los valores patrios y ciudadanos de la población anexada tras la guerra del Pacífico (1879-1883), bajo una política denominada como "chilenización".
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