Unidades de Investigación de la Facultad de Ciencias: Envíos recientes

Voici les éléments 801-820 de 1112

    • Información Investigador: Castro de Briceño, Luz Thais 

      Castro, Luz Thais (2008-09-19)
      Resumen Curricular Luz Thais Castro de Briceño, Licenciada en Biología de la Facultad de la Universidad de Los Andes Ciencias, con Postgrado en Biología Celular. Profesora a nivel de Asociado a dedicación exclusiva ...

    • Información Investigador: Tacoronte Blanco, Melangel Coromoto 

      Tacoronte B., Melangel (2008-09-19)

    • E-science perspectives in Venezuela. 

      Díaz, Gilberto; Flórez López, Julio; Hamar, Vanessa; Hoeger, Herbert; Mendoza, Claudio; Méndez P., Zulay V.; Núñez, Luis; Ruiz, Nicolás; Torréns Heeren, Rodrigo J.; Uzcátegui, M. (SABER ULA, 2008-08-29)
      E-science perspectives in Venezuela. (Díaz, Gilberto; Flórez López, Julio; Hamar, Vanessa; Hoeger, Herbert; Mendoza, Claudio; Mendez, Z.; Núñez, Luis; Ruiz, Nicolás; Torréns Heeren, Rodrigo J.; Uzcátegui, M.) Abstract We ...

    • Red bioclimática del estado Mérida: repositorio institucional de datos ambientales 

      Contreras Zambrano, Hilda Yelitza; Méndez P., Zulay V.; Torréns Heeren, Rodrigo J.; Núñez, Luis (SABER ULA, 2008-08-29)
      Red bioclimática del estado Mérida: repositorio institucional de datos ambientales. (Contreras Zambrano, Hilda Yelitza; Méndez, Zulay V.; Torréns Heeren, Rodrigo J. y Núñez, Luis) Resumen Presentamos la experiencia ...

    • Contribution to the commissioning of the ATLAS calorimeter electronics calibration 

      Cárdenas G., Antonio L. (SABER ULA, 2008-08-07)
      Contribution to the commissioning of the ATLAS calorimeter electronics calibration (Cárdenas G., Antonio L.)

    • Efecto de las variaciones de la presión térmica sobre el estado del gas interestelar 

      Mehrer Terradillos, Mariana; Parravano, Antonio (SABER ULA, 2008-07-25)
      Efecto de las variaciones de la presión térmica sobre el estado del gas interestelar. (Mehrer Terradillos, Mariana y Parravano, Antonio) Resumen Se estudió el cambio del estado termoquímico del gas interestelar cuando ...

    • Structure-Activity Relationships (SAR) studies of Benzoxazinones, their degradation products and analogues. Phytotoxicity on Standard Target Species (STS). 

      Oliveros Bastidas, Alberto; Macías, Francisco A.; Marín, David; Castellano, Diego; Simonet, Ana M.; Molinillo G., José (SABER ULA, 2008-07-15)
      Structure-Activity Relationships (SAR) studies of Benzoxazinones, their degradation products and analogues. Phytotoxicity on Standard Target Species (STS) (Macías, Francisco A.; Marín, David; Oliveros, Alberto; Castellano, ...

    • Lie Groups of Conformal Motions acting on Null Orbits 

      Carot, Jaume; Coley, A. A.; Sintes, A. M. (SABER ULA, 2008-07-02)
      Lie Groups of Conformal Motions acting on Null Orbits (Carot, Jaume; Coley, A. A.; Sintes, A. M.) Abstract Space-times admitting a 3-dimensional Lie group of conformal motions acting on null orbits containing a ...

    • Conformal symmetries in warped manifolds. 

      Apostolopoulos, Pantelis S.; Carot, Jaume (SABER ULA, 2008-07-02)
      Conformal symmetries in warped manifolds (P. S., Apostolopoulos; Carot, Jaume.) Abstract The existence of a Conformal Vector Field (CVF) is studied in the important class of warped manifolds of arbitrary dimension ...

    • Scalar field cosmologies: a dynamical systems study 

      Carot, Jaume; Collinge, Magdalena M. (SABER ULA, 2008-07-02)
      Scalar field cosmologies: a dynamical systems study (Carot, Jaume; Collinge, Magdalena M.) Abstract Inhomogeneous G2 solutions whose material content can be modelled by a scalar field are considered with a view towards ...

    • Scalar field spacetimes 

      Carot, Jaume; Collinge, Magdalena M. (SABER ULA, 2008-07-02)
      Scalar field spacetimes (Carot, Jaume; Collinge, Magdalena M.) Abstract Scalar field spacetimes are considered with a view towards their applications in cosmology. Some results existing in the literature are reviewed ...

    • On the geometry of warped spacetimes 

      Carot, Jaume; da Costa, J. (SABER ULA, 2008-07-02)
      On the geometry of warped spacetimes (Carot, Jaume; da Costa, J.) Abstract An invariant characterization of warped spacetimes is given and a classification scheme for them is proposed. Some results on the curvature ...

    • Energy-momentum types of warped spacetimes 

      Carot, Jaume; Haddow, Barry M. (SABER ULA, 2008-07-02)
      Energy-momentum types of warped spacetimes (Carot, Jaume; Haddow, Barry M. Abstract The possible energy–momentum types of warped product pacetime are investigated using the classification given by Carot and da Costa.

    • Some developments on axial symmetry 

      Carot, Jaume (SABER ULA, 2008-07-02)
      Some developments on axial symmetry (Carot, Jaume) Abstract The definition of axial symmetry in general relativity is reviewed, and some results concerning the geometry in a neighbourhood of the axis are derived. ...

    • Conformal symmetry inheritance in null fluid spacetimes 

      Carot, Jaume; Tupper, Brian O. J.; Hall, J. S.; Keane, A. J.; Coley, A. A. (SABER ULA, 2008-07-02)
      Conformal symmetry inheritance in null fluid spacetimes (Carot, Jaume; Keane, A. J.; Coley, A. A.; Hall, J. S.; Tupper, Brian O. J.) Abstract We define inheriting conformal Killing vectors for null fluid spacetimes ...

    • Conformal symmetries in null Einstein-Maxwell fields 

      Carot, Jaume; Hall, J. S. (SABER ULA, 2008-07-02)
      Conformal symmetries in null Einstein-Maxwell fields (Carot, Jaume; Hall, J. S.) Abstract It is shown that if a null Einstein-Maxwell spacetime admifs a proper conformal vector field it must either be a (generalized ...

    • Conformally reducible 2 + 2 spacetimes 

      Carot, Jaume; Tupper, Brian O. J. (SABER ULA, 2008-07-02)
      Conformally reducible 2 + 2 spacetimes (Carot, Jaume; Tupper, Brian O. J.) Abstract Spacetimes which are conformal to 2 + 2 reducible spacetimes are considered. We classify them according to their conformal algebra, ...

    • Homothetic perfect fluid spacetimes 

      Carot, Jaume; Sintes, A. M. (SABER ULA, 2008-07-02)
      Homothetic perfect fluid spacetimes (Carot, Jaume; Sintes, A. M.) Abstract A brief summary of results on homotheties in general relativity is given, including general information about spacetimes admitting an ...

    • Matter collineations: The inverse "symmetry inheritance" problem. 

      Carot, Jaume; da Costa, J.; Vaz, E. G. L. R. (SABER ULA, 2008-07-02)

    • Generalised soliton solutions of the Weyl class 

      Verdaguer, Enric; Carot, Jaume (SABER ULA, 2008-07-02)
      Generalised soliton solutions of the Weyl class (Verdaguer, Enric ; Carot, Jaume) Abstract The whole family of generalised soliton solutions of the Weyl class for Einstein's equations in vacuum is considered. A ...