Results 1 to 10 of about 332,014 (241)
Dark sector unifications: dark matter-phantom energy, dark matter -- constant $w$ dark energy, dark matter-dark energy-dark matter [PDF]
Physics Letters B, 2019 The paper brings a novel approach to unification of dark matter and dark energy in terms of a cosmic fluid. A model is introduced in which the cosmic fluid speed of sound squared is defined as a function of its equation of state (EoS) parameter. It is shown how logarithmic part of this function results in dynamical regimes previously not observed in ...
Dalibor Perković, Hrvoje Štefančić
arxiv +5 more sources
Ciencias Marinas, 2009 Four-day-old postlarvae of the abalone Haliotis corrugata were exposed to different diatom densities (Navicula incerta, 0 to 8000 cells mm–2) under two illumination conditions: constant light (19–21 µmol quanta m–2 s–1) and darkness. The effect of these
E Gorrostieta-Hurtado +4 more
exaly +3 more sources
Physical Review D, 2021 A new $U(1)$ dark gauge group coupled to the Standard Model (SM) via the kinetic mixing portal provides a natural dark matter candidate in the form of the Higgs field, $h_d$, responsible for generating the mass of the dark photon, $ _d$. We show that the condition $m_{h_d}\leq m_{ _d}$, together with smallness of the kinetic mixing parameter ...
Maxim Pospelov +4 more
openaire +3 more sources
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
doaj +1 more source
A n Exegetical Analysis of the Darkness of Mu’min and the Light of Kafir in Surah al-Baqarah [PDF]
پژوهشهای تفسیر تطبیقی, 2020 Received: 25/06/2019 | Accepted: 30/08/2019 The 257th verse of Surah al-Baqarah is one of controversial verses in the Quran which mentions “bringing Mu’minin (believers) out from darkness into the light” and “taking Kafirin (disbelievers) out of the ...
Siyid Muhammad Musavi Muqaddam +3 more
doaj +1 more source
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
doaj +1 more source
Dark matter and dark radiation [PDF]
Physical Review D, 2009 14 pages, 6 figures Updated equations and ...
Ackerman, Lotty +3 more
openaire +6 more sources
Dark Atoms and Dark Radiation [PDF]
Advances in High Energy Physics, 2014 K.Belotsky1,2, J.-R. Cudell3, M. Khlopov1,2,4, C. Kouvaris5 1 National Research Nuclear University MEPHI (Moscow Engineering Physics Institute), 115409 Moscow, Russia 2 Centre for Cosmoparticle Physics ”Cosmion” 115409 Moscow, Russia 3 IFPA, Dep. AGO, Universite de Liege, Sart Tilman, 4000 Liege, Belgium 4 APC laboratory 10, rue Alice Domon et Leonie ...
Maxim Khlopov +3 more
openaire +3 more sources
"There's going to be a moon tonight": Images of light and darkness as symbolic elements in Ernest Hemingway's In our time [PDF]
Zbornik Radova Filozofskog Fakulteta u Prištini, 2023 This paper aims at exploring and analysing the presence and significance of images of light and darkness as symbolic elements in the short story collection In Our Time by Ernest Hemingway.
Surla Milica B. +1 more
doaj +1 more source
Animals, 2020 Agonistic behavior after the regrouping of unfamiliar pigs has been recognized as one of the major welfare issues for pig husbandry, as it may result in lesions, lameness, and health problems. One scarcely investigated strategy to curb agonistic behavior
Lieta Marinelli +4 more
doaj +1 more source