Articulos, Pre-prints (Centro de Física Fundamental (CFF)): Envíos recientes

Mostrando ítems 21-40 de 102

    • E-science initiatives in Venezuela. 

      Chaves, Juan Luis; Díaz, Gilberto; Hamar, Vanessa; Isea, Raúl; Rojas, Freddy; Ruiz, Nicolás; Torréns Heeren, Rodrigo J.; Uzcátegui, M.; Flórez López, Julio; Hoeger, Herbert; Mendoza, Claudio; Núñez, Luis (SABER ULA, 2008-06-09)
      E-science initiatives in Venezuela. (Chaves, Juan Luis; Díaz, Gilberto; Hamar, Vanessa; Isea, Raúl; Rojas, Freddy; Ruiz, Nicolás; Torréns Heeren, Rodrigo J.; Uzcátegui, M.; Flórez López, Julio; Hoeger, Herbert; Mendoza, ...

    • E-investigación: una nueva manera de producir conocimiento. 

      Núñez, Luis (SABER ULA, 2007-07-03)
      E-investigación: una nueva manera de producir conocimiento. (Núñez, Luis) Resumen Se describen algunas experiencias en e-investigación de en Física de Altas Energías, Astrofísica y Química. Luego se hace una descripción ...

    • Sound speeds, cracking and stability of self-gravitating anisotropic compact objects. 

      Abreu, Henso; Núñez, Luis; Hernández G., Héctor (SABER ULA, 2007-06-25)
      Sound speeds, cracking and stability of self-gravitating anisotropic compact objects. Abstract Using the the concept of cracking we explore the influence of density fluctuations and local anisotropy have on the stability ...

    • Crucial test of relativity theory: open currents and magnetic model of light. 

      Spavieri, Gianfranco; Erazo, Jesús; Sánchez, Arturo; Ayazo, José; Rodriguez, M. (SABER ULA, 2007-04-13)
      Crucial test of relativity theory: open currents and magnetic model of light. Spavieri, Gianfranco; Erazo, J.; Sanchez, A.; Ayazo, José and Rodriguez, M. Abstract Fundamental tests of special theory of relativity (STR) ...

    • Locality and electromagnetic momentum in critical tests of special relativity. 

      Spavieri, Gianfranco; Quintero M., Jesús A.; Sánchez, Arturo; Ayazo, José; Gillies, George (SABER ULA, 2007-04-13)
      Locality and electromagnetic momentum in critical tests of special relativity. Spavieri, Gianfranco; Quintero, Jesús; Sánchez, Arturo; Ayazo, José y Gillies, George Abstract In this review of recent tests of special ...

    • New BPS domain wall solutions. 

      Pantoja, Nelson; Ramírez, Alba (SABER ULA, 2007-03-28)
      New BPS domain wall solutions. (Pantoja, Nelson y Ramírez, Alba) Abstract Smooth solutions of gravity-scalar field models which represents BPS domain wall spacetimes with a well defined thin wall limit are obtained ...

    • On the collineations of distribution-valued Ricci tensor fields of domain wall spacetimes. 

      Pantoja, Nelson; Sanoja, Alberto (SABER ULA, 2007-03-27)
      On the collineations of distribution-valued Ricci tensor fields of domain wall spacetimes. (Pantoja, Nelson y Sanoja, Alberto) Abstract Generalizing the Lie derivative to distribution-valued tensors, we examine the ...

    • Localizing gravity on exotic thick 3-branes 

      Pantoja, Nelson; Melfo, Alejandra; Castillo Felisola, Oscar; Ramírez, Alba (SABER ULA, 2007-03-19)
      Localizing gravity on exotic thick 3-branes Castillo-Felisola, Oscar; Melfo, Alejandra; Pantoja, Nelson; Ramírez, Alba Abstract We consider localization of gravity on thick branes with a ...

    • Fermion localization on thick branes 

      Melfo, Alejandra; Pantoja, Nelson; Tempo, José David (SABER ULA, 2007-03-19)
      Fermion localization on thick branes. (Melfo, Alejandra; Pantoja, Nelson and Tempo, José David) Abstract We consider chiral fermion confinement in scalar thick branes, which are known to localize gravity, coupled ...

    • Close to the edge: hierarchy in a double braneworld 

      Guerrero, Rommel; Pantoja, Nelson; Melfo, Alejandra; Rodriguez, Omar (SABER ULA, 2007-03-19)
      Close to the edge: hierarchy in a double braneworld. (Guerrero, Rommel; Melfo, Alejandra; Pantoja, Nelson and Rodriguez, R. Omar) Abstract We show that the hierarchy between the Planck and the weak scales can follow ...

    • PP waves and distributional curvature 

      Pantoja, Nelson; Ramírez, Freddy (SABER ULA, 2007-03-19)
      PP waves and distributional curvature. (Nelson Pantoja and Freddy Ramírez) Abstract We carry out the distributional analysis of the geometry of a spacetime associated to gravitational waves propagating in a magnetic ...

    • Biomedical aplications in EELA. 

      Pérez Griffo, Javier; Isea, Raúl; Núñez, Luis; Mora, Henry Ricardo; Fernández, Manuel; Cardenas, Miguel; Hernández, Vicente; Mayo, Rafael; Blanquer, Ignacio (SABER ULA, 2007-03-09)
      Biomedical aplications in EELA. (Perez Griffo, Javier; Isea, Raul; Nuñez, Luis; Mora, Henry Ricardo; Fernández, Manuel; Cardenas, Miguel; Hernández, Vicente; Mayo, Rafael and Blanquer, Ignacio) Abstract The current ...

    • Visibilidad a través del web de las instituciones académicas venezolanas. 

      Núñez, Luis (SABER ULA, 2007-03-09)

    • General relativistic radiant shock waves in the post-quasistatic approximation. 

      Rueda H., Jorge A.; Núñez, Luis (SABER ULA, 2006-12-28)
      General relativistic radiant shock waves in the post-quasistatic approximation. (Rueda H., Jorge A. y Núñez, Luis) Abstract An evolution of radiant shock wave front is considered in the framework of a recently presented ...

    • Cracking of self-gravitating compact objects with local and non local equations of state. 

      Abreu, Henso; Hernández G., Héctor; Núñez, Luis (SABER ULA, 2006-12-28)
      Cracking of self-gravitating compact objects with local and non local equations of state. (Abreu, Henso; Hernández, Hector y Núñez, Luis) Abstract We discuss the effect that small fluctuations of density and local ...

    • Introducción a la cosmología. 

      Rago, Héctor (SABER ULA, 2006-08-04)

    • La atractiva gravedad. 

      Rago, Héctor (SABER ULA, 2006-08-04)

    • Variational mechanics of dissipative systems. 

      Patiño, Alberto; Rago, Héctor (SABER ULA, 2006-08-03)

    • La relatividad y el tiempo. 

      Rago, Héctor (SABER ULA, 2006-08-03)

    • A family of coordinate systems for reissner-nordstron geometry. 

      Patiño, Alberto; Rago, Héctor (SABER ULA, 2006-08-03)