Nomenclatura Unesco > (21) Astronomía y Astrofísica > (2101) Cosmología y cosmogonía

Mostrando recursos 1 - 13 de 13

  1. MEDICINA INDÍGENA Y SALUD MENTAL

    ÁLVARO ROBERTO VALLEJO SAMUDIO
    Las diferentes alternativas médicas con que hoy cuenta la humanidad enriquecen tanto la profilaxis, como los diagnósticos y los tratamientos mismos de las enfermedades, cuando éstas se abordan desde un marco multicausal. El siguiente artículo hace una reflexión alrededor de dos alternativas: la medicina occidental y la medicina indígena. Se focaliza en la concepción de salud que manejan estas dos formas de conocimiento, se hace hincapié en la necesidad de revalorar la medicina indígena, y se plantea a grosso modo cómo desde la medicina indígena se ven las alteraciones en la salud mental. El autor resalta que para comprender la...

  2. Vínculo entre mestizaje y salud en un sistema médico de una comunidad indígena Colombiana

    Jaiberth Antonio Cardona Arias
    Introducción: en los pueblos indígenas colombianos existen factores que impactan su sistema médico, entre ellos, el mestizaje. Para rescatar la medicina tradicional indígena y articularla de forma efectiva con la medicina occidental, se debe conocer la realidad singular de la comunidad con la cual se desea trabajar, su cosmología, cosmovisión y cosmogonía para orientar las acciones en salud. Objetivo: comprender el vínculo entre el mestizaje y la salud en el Sistema Médico Tradicional Indígena Zenú de Colombia. Métodos: estudio etnográfico. Se seleccionaron 25 personas por muestreo teórico. Los datos se recolectaron a través de entrevistas semiestructuradas, diarios de campo y...

  3. Indian cosmogonies and cosmologies

    Pajin Dušan
    Various ideas on how the universe appeared and develops, were in Indian tradition related to mythic, religious, or philosophical ideas and contexts, and developed during some 3.000 years - from the time of Vedas, to Puranas. Conserning its appeareance, two main ideas were presented. In one concept it appeared out of itself (auto-generated), and gods were among the first to appear in the cosmic sequences. In the other, it was a kind of divine creation, with hard work (like the dismembering of the primal Purusha), or as emanation of divine dance. Indian tradition had also various critiques of mythic and...

  4. Homothetic motions and Newtonian cosmology

    Jaen Herbera, Javier; Molina Compte, Alfred
    We construct a homothetic covariant Newtonian gravitation theory which unifies inertial homothetic forces and gravitational fields. This is achieved through an equivalence principle based on a local homothetic frame of motion. As a consequence, we can obtain a coherent Newtonian cosmology which admits a cosmological principle and leads to the Friedman equations for a dust universe. Finally we prove that this gravity theory can be obtained as the non-relativistic limit of a class of metrics in General Relativity. The Friedmann–Lemaître–Robertson–Walker metric and its limit are also studied.

  5. The shape of a galaxy is not much influenced by the potential as it might seem

    Cubarsí Morera, Rafael
    The dynamics of a galaxy as a stellar system in statistical equilibrium is usually obtained from the superposition principle, based on the linearity of the Boltzmann collisionless equation (BCE) in regard to the phase space density function. The term statistical equilibrium is a notion coming from statistical dynamics, although, from an analytical dynamics viewpoint, it should be associated with an invariant (conservative) density function under the BCE in the phase space. Similarly, dissipative forces like dynamical friction, which are essential to statistical dynamics, emerge in analytical dynamics via non steady-state phase density functions and/or potentials as solutions of the BCE....

  6. Nucleosynthesis during the merger of white dwarfs and the origin of R Coronae Borealis stars

    Longland, Richard Leigh; Lorén Aguilar, Pablo; José Pont, Jordi; García-Berro Montilla, Enrique; Althaus, Leandro Gabriel; Isern Vilaboy, Jordi
    Many hydrogen-deficient stars are characterized by surface abundance patterns that are hard to reconcile with conventional stellar evolution. Instead, it has been suggested that they may represent the result of a merger episode between a helium and a carbon–oxygen white dwarf. In this Letter, we present a nucleosynthesis study of the merger of a 0.4M helium white dwarf with a 0.8M carbon–oxygen white dwarf, by coupling the thermodynamic history of Smoothed Particle Hydrodynamics particles with a post-processing code. The resulting chemical abundance pattern, particularly for oxygen and fluorine, is in qualitative agreement with the observed abundances in R Coronae Borealis...

  7. Funció de distribució de les velocitats de les estrelles a l'entorn del Sol

    Cubarsí Morera, Rafael

  8. Monte Carlo simulations of the post-common envelope white dwarf-main sequence binary population

    Camacho Díaz, Judit; Torres Gil, Santiago; García-Berro Montilla, Enrique; Zorotovic, Monica; Schreiber, Mathias R.
    Postprint (published version)

  9. The contribution of red dwarfs and white dwarfs to the halo dark matter

    Torres Gil, Santiago; Camacho Díaz, Judit; Isern Vilaboy, Jordi; García-Berro Montilla, Enrique

  10. Multibersoaren bila

    Moreno Lupiáñez, Manuel

  11. Local behaviour of evaporating stars and black holes around the total evaporation event

    Fayos Vallés, Francisco; Torres Herrera, Ramon

  12. Cosmologia: passat, present i futur de l'univers

    Aragoneses Aguado, Andrés
    La Cosmologia se centra en l'estudi del passat, present i futur de l'univers. Des d'antany respón a aquestes preguntes, ha estat una de les grans motivacions de la humanitat. Quina és la destinació de l'Univers?. La resposta....

  13. On the scattering map and homoclinic connections between Lyapunov orbits

    Cancalias Vila, Elisabet; Delshams Valdés, Amadeu; Masdemont Soler, Josep; Roldán González, Pablo
    Homoclinic and heteroclinic connections between planar Lyapunov orbits of the Sun-Earth and Earth-Moon models can be found by using their hyperbolic invariant manifolds and Poincare section representations. These connections can be classified in bifurcation families according to the range of values of the associated Jacobi constant. In the formalism of invariant manifolds (as the aforementioned Jacobi constant changes) the foliation of all Lyapunov orbits is a Normally Hyperbolic Invariant Manifold. In this context, the homoclinic connections correspond to the so called Scattering map of this NHIM into itself. In this work, the Scattering map is studied as a possible way to formally describe the asymptotic connections arising from the...

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