Mostrando 5,021 - 5,040 Resultados de 5,650 Para Buscar '"cosmology"', tiempo de consulta: 0.10s Limitar resultados
  1. 5021
    “…Our basic assumption is that cosmological MFs grow in a MHD amplification process driven by structure formation out of a seed MF present at high z. …”
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  2. 5022
    “…In this work, the main bee species of the sub tribe Meliponina, which were handled by the Enawene-Nawe, was identified, and a brief ethnographic description of the honey collection expeditions and its social-cosmologic meaning for the group was done. RESULTS AND DISCUSSION: Similar to other indigenous people in Brazil, the Enawene-Nawe recognized 48 stingless bee species. …”
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  3. 5023
    por Frazão-Moreira, Amélia
    Publicado 2016
    “…BACKGROUND: In attempting to understand how the use of medicinal plants is symbolically valued and transformed according to specific cosmologies, we gain valuable insight into the ethnopharmacologial practices, in terms of the major role played by healers, as custodians of local ethnobotanical knowledge, but also as ritual masters. …”
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  4. 5024
    por Palmer, Tim N.
    Publicado 2018
    “…This framework postulates the primacy of a fractal-like ‘invariant set’ geometry [Formula: see text] in cosmological state space, on which the universe evolves deterministically and causally, and from which space-time and the laws of physics in space-time are emergent. …”
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  5. 5025
    “…We also find that inclusion of the bispectrum monopole improves constraints on cosmological parameters by (5–15)% relative to the power spectrum. …”
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  6. 5026
    “…The minimal SU(5) axion model of Wise, Georgi and Glashow (1981) yields a cosmological baryon-to-proton ratio in the same order as that in the minimal SU(5) model with one 5 of Higgs, which is much smaller than required by astrophysics. …”
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  7. 5027
    por Burgess, Clifford
    Publicado 2015
    “…Besides not seeing the expected new particles, lack of progress on the cosmological constant problem appears to undermine the whole picture. …”
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  8. 5028
    por Argyropoulos, Spyridon
    Publicado 2019
    “…The results provide the most stringent constraints on the scale of disformal interactions between Dark Energy and Standard Model matter, improving the constraints obtained from cosmological and solar system tests by several orders of magnitude.…”
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  9. 5029
    por Leedom, Jacob
    Publicado 2019
    “…However, the latest modification of the above conjecture, which utilizes the second derivative of the potential, opens up the opportunity for observations to determine if the dark energy equation of state deviates from that of a cosmological constant.…”
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  10. 5030
    por Milton, K A
    Publicado 2001
    “…Its sweep ranges from perhaps its being the origin of the cosmological constant to its being responsible for the confinement of quarks. …”
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  11. 5031
    por Iashvili, I
    Publicado 1998
    “…Finally, given that the weakly interacting Lightest Supersymmetric Particle can account for the dark matter of the Universe, the results of these studies are put in perspective of cosmological considerations.…”
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  12. 5032
    “…If the axino is the lightest superpartner and satisfies cosmological bounds, including a preferred range of the relic abundance of cold dark matter, then the usual stringent constraints on the parameter space of the CMSSM become greatly relaxed. …”
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  13. 5033
    por Giovannini, Massimo
    Publicado 2004
    “…The analysis is conducted both in the synchronous and in the conformally Newtonian gauges. The cosmological plasma is assumed to be composed of cold dark mattter, baryons, photons, neutrinos. …”
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  14. 5034
    “…We consider the existence of an “inflaton” described by an homogeneous scalar field in the Szekeres cosmological metric. The gravitational field equations are reduced to two families of solutions which describe the homogeneous Kantowski–Sachs spacetime and an inhomogeneous FLRW(-like) spacetime with spatial curvature a constant. …”
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  15. 5035
    “…This leads to a new strategy for the classification of well behaved static solutions of vacuum Einstein equations with a positive cosmological constant, based on the geometry of the maximum-set of the lapse.…”
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  16. 5036
    “…We obtain the equation governing the evolution of the cosmological gravitational-wave background, accounting for the presence of cosmic neutrinos, up to second order in perturbation theory. …”
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  17. 5037
    “…We compute the low red-shift expansion for the energy density and the density contrast using an exact spherically symmetric solution in presence of a cosmological constant. At low red-shift the expansion is more precise than linear perturbation theory prediction. …”
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  18. 5038
    por Kim, Doojin, Matchev, Konstantin T.
    Publicado 2017
    “…We demonstrate that the resulting distortion in the shape of the invariant mass distribution can be significant enough to measure the width of the dark matter “candidate,” ruling it out as the source of the cosmological dark matter.…”
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  19. 5039
    “…This leads to a new mechanism of generation of the cosmological Dark Matter relic density: super-cooling can easily suppress the amount of Dark Matter down to the desired level. …”
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  20. 5040
    por Arbey, A., Mahmoudi, F., Robbins, G.
    Publicado 2018
    “…SuperIso Relic v4 incorporates many new features, namely the possibility of parallel calculation of the relic density, new cosmological models, and the implementations of the calculation of the observables related to direct and indirect detection experiments. …”
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