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Search Results: 1 - 10 of 290 matches for " Poveda "
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Nombres y relaciones sociales: El grupo de iguales como comunidad interpretativa
David Poveda
Papeles de Trabajo sobre Cultura, Educación y Desarrollo Humano , 2006,
Abstract: This article examines how members of a child peer group use names (through nicknames, references to third parties and narratives around names) in their spontaneous interactions. Naming practices take place in different interactional situations, such as conflicts, narratives or negotiations and they signal different forms of affiliation, inclusion or exclusion in the peer group. Efficient use of names involves shared knowledge between members of the peer group and this knowledge is related to different domains, which are more or less accessible to external third parties, of their peer culture (e.g. media figures, neighborhood characters or participants in intimate relationships). Consequently, name use provides information on the place that each interlocutor plays in the group understood as an interpretive community. Also, the analysis of name use can uncover aspects of the peer group’s social structure. The data of this study comes from a linguistic ethnography focused on peer interactions of a mostly Gitano group of children from a small city in Spain. This article is published in Spanish.
A. Poveda
Revista mexicana de astronomía y astrofísica , 2009,
Abstract: I will briefly review the history and evolution of the concept of runaway stars, from the discovery of this class of objects in Orion by Blaauw and Morgan up to the recent discovery of three very young runaway stars: BN-I-n in the Becklin-Neugebauer/Kleinman-Low region again in Orion. I will show numerical simulations based in the model of strong dynamical interactions among protostars that reproduce the observed kinematical configuration on the BN-I-n systems.
Obituary - Miguel Angel Herrera
Arcadio Poveda
Revista mexicana de astronomía y astrofísica , 2002,
Claudio Firmani: a breath of the renaissance
A. Poveda
Revista mexicana de astronomía y astrofísica , 2003,
El Primer Ferrocarril En Colombia
Gabriel Poveda
DYNA , 2002,
Abstract: Se presenta la historia de los preparativos, la construcción y el funcionamiento del primer ferrocarril que existió en el territorio de la actual Colombia (sin incluir a Panamá) que unió a Barranquilla con el mar Caribe. Se muestra la importancia tecnológica y económica que esta obra tuvo para el país mientras existió (de 1869 a 1941)
El antiguo ferrocarril de Caldas
Gabriel Poveda
DYNA , 2003,
Abstract: Se reconstruye la historia de la construcción y de la operación de los ferrocarriles que, en la primera mitad del siglo XX recorrieron el territorio del antiguo departamento de Caldas en Colombia. Se rememora, en especial, el que se llamó Ferrocarril de Caldas, que iba desde el río Cauca, cerca de Cartago hasta Manizales, y que fue construido y operado por una empresa del gobierno del mencionado Departamento. Se revive también la construcción del ferrocarril de Pereira a Armenia y el intento prolongado y fallido de construir otro de Armenia a Ibagué, atravesando la Cordillera Central de Colombia.
La Segregación étnica En Contexto:El Caso De La Educación En Vallecas--Puente De Vallecas Ethnic Segregation In Context: The Case Of Education In Vallecas - Puente De Vallecas
David Poveda
Education Policy Analysis Archives , 2003,
Abstract: Este artículo presenta un análisis etnográfico de las condiciones sociales y procesos ideológicos que ayudan a comprender la distribución desigual del alumnado entre centros públicos y privados en función de su procedencia étnica. Para ello, examina la forma que adoptan estos mecanismos en una zona concreta de Madrid (Espa a): Vallecas-Puente de Vallecas. Esta área de la ciudad ha experimentado cambios sociales muy importantes a lo largo de los últimos cincuenta a os y tiene una historia social muy intensa dentro de la ciudad. En la actualidad, presenta un índice alto de segregación étnica en los centros escolares en función de su titularidad (pública vs. privada-concertada). Además, frente a lo que se considera la tendencia habitual en Espa a, a pesar de ser una zona predominantemente de clase media-baja, la mayor parte del alumnado de estos dos distritos está escolarizado en centros privados-concertados. Estas circunstancias se explican a través de una teoría folk presente en la comunidad en cuanto al papel de la educación privada en los procesos de movilidad social y una categorización émic de la clase de estudiantes que asiste a centros públicos y privados-concertados. En las conclusiones se discuten dos aspectos: (a) las implicaciones que este caso tiene para la implementación de políticas educativas encaminadas a reducir la “dualización” del sistema educativo espa ol y; (b) algunas líneas de trabajo que podrían abrirse en el estudio del papel del sistema educativo en la construcción de la desigualdad social. This article presents an ethnographic analysis of the social conditions and ideological processes that help understand how students are distributed unequally between private and public schools on the basis of their ethnicity. To do so, it examines the form these mechanisms adopt in a particular area of Madrid (Spain): Vallecas-Puente de Vallecas. This part of the city has undergone dramatic social changes during the last fifty years and has a very intense social history in Madrid. Currently, it shows a high degree of ethnic segregation between schools depending on their status (public vs. ‘private-concerted’). Also, contrary to what is considered the usual tendency in Spain, even though this area is predominantly lower-middle class, the majority of students of these two districts are enrolled in private-concerted schools. These circumstances are explained through a folk theory present in the community regarding the role of private education in processes of social mobility and an emic categorization of the type of pupils who attend public and p
Third generation superpartners: Results from ATLAS and CMS
J. Poveda
Physics , 2014, DOI: 10.1142/S2010194514602944
Abstract: These proceedings discuss results from recent searches for third generation SUSY particles by the ATLAS and CMS experiments at the LHC. Analyses performed with 8 TeV data probing direct pair production of bottom and top squarks are presented.
Los objetos de aprendizaje: aprender y ense?ar de forma interactiva en biociencias
Poveda Polo,Angel;
ACIMED , 2011,
Abstract: the educational change to a model in agreement with the european space of the higher education (eshe) and the appearance of new virtual learning environments allowed the development of tools of knowledge transmission called learning tools. the aim of resent paper is to establish a panorama of the definition and origin of such tools, the available repositories and the information program also available for its creation.
Chicxulubites: a New Class of Meteorites?
Poveda, A;Cordero, G;
Geofísica internacional , 2008,
Abstract: it is well known that asteroidal impacts on the moon and mars have ejected a large number of fragments that, after traveling in the inner planetary system for thousands or millions of years, occasionally fall on earth and are recovered as meteorites. it is of interest, therefore, to ask the question: what fraction of the mass excavated from the chicxulub crater was ejected with escape velocities as the result of the 100 million megaton explosion? these fragments, similarly to what happened with lunar and martian ejecta, can fall onto the moon, as well as back on the earth as meteorites: chicxulubites. a 10 km-diameter asteroid, like the one at chicxulub, could have produced a number of high velocity fragments with a total mass of about one thousandth of the mass of the projectile. from the work of vickery (1987) on secondary craters on mercury, the moon and mars, we estimated the mass and the diameter of the largest fragments that would have a velocity larger than the earth's escape velocity. assuming dohnanyi's mass frequency distribution, we estimated that the number of fragments with sizes larger than 10 cm and 2 cm is about 4x1010 and 2x1012, respectively. we also estimated the expected fraction of these chicxulubites to the total number of earth-crossing asteroids (eca's) of similar diameter. we conclude that a number of fragments from the chicxulub crater have fallen onto the moon and the earth after becoming ecas, and are waiting to be identified as chicxulubites.
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