Results 21 to 30 of about 152,893 (314)
DARK ENERGY WITH DARK SPINORS [PDF]
Modern Physics Letters A, 2010 Ever since the first observations that we are living in an accelerating universe, it has been asked what dark energy is. There are various explanations, all of which have various drawbacks or inconsistencies. Here we show that using a dark spinor field it is possible to have an equation of state that crosses the phantom divide, becoming a dark phantom
Boehmer, Christian G., Burnett, James
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Darkness-increased proteins in chloroplast. [PDF]
, 2016 Darkness-increased proteins in chloroplast.
Haibo Xiong (2636830) +6 more
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Darkness-decreased proteins in chloroplast. [PDF]
, 2016 Darkness-decreased proteins in chloroplast.
Haibo Xiong (2636830) +6 more
core +1 more source
Dark matter from a dark connection [PDF]
Modern Physics Letters A, 2021 In the first part of this note, we observe that a non-Riemannian piece in the affine connection (a “dark connection”) leads to an algebraically determined, conserved, symmetric 2-tensor in the Einstein field equations that is a natural dark matter candidate. The only other effect it has, is through its coupling to standard model fermions via covariant
Das, Ranit, Krishnan, Chethan
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Ecology and Society, 2021 Artificial light at night (ALAN) is nowadays recognized as a major anthropogenic pressure on the environment on a global scale and as such is called light pollution.
Samuel Challéat +8 more
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From Dark Energy & Dark Matter to Dark Metric [PDF]
Foundations of Physics, 2009 It is nowadays clear that General Relativity cannot be the definitive theory of Gravitation due to several shortcomings that come out both from theoretical and experimental viewpoints. At large scales (astrophysical and cosmological) the attempts to match it with the latest observational data lead to invoke Dark Energy and Dark Matter as the bulk ...
CAPOZZIELLO, SALVATORE +3 more
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Acta Societatis Botanicorum Poloniae, 2014 The objects of this research were the antheridial filament cells of Chara vulgaris which after 5-day mitodepressing treatment of the darkness reactivated mitosis (without light stimulation) in the result of the physiological state evocing the initiation ...
Maria Kwiatkowska
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Plants, 2021 7-hydroxymethyl chlorophyll (Chl) a reductase (HCAR) plays critical roles in the Chl cycle and degradation during leaf senescence, however, its function in horticultural crops remains unknown.
Weikang Liu +6 more
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DARK MATTER, AND ITS DARKNESS [PDF]
International Journal of Modern Physics D, 2006 Assuming the validity of the general relativistic description of gravitation on astrophysical and cosmological length scales, we analytically infer that the Friedmann–Robertson–Walker cosmology with Einsteinian cosmological constant, and a vanishing spatial curvature constant, unambiguously requires a significant amount of dark matter.
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Acta Societatis Botanicorum Poloniae, 2014 The changes in number and size of nucleoli of Chara vulgaris antheridial filament cells were monitored with the use of Howell and Black's silver staining method.
Maria Kwiatkowska, Ewa Papiernik
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