Results 31 to 40 of about 1,328,728 (267)
Cosmological principle and torsion
Physics Letters A, 1979 Abstract It is shown that when the cosmological principle is extended to a Riemann-Cartan space-time only certain components of the torsion tensor can be nonzero.
openaire +2 more sources
Extended uncertainty principle for rindler and cosmological horizons
European Physical Journal C: Particles and Fields, 2019 We find exact formulas for the Extended Uncertainty Principle (EUP) for the Rindler and Friedmann horizons and show that they can be expanded to obtain asymptotic forms known from the previous literature.
Mariusz P. Da̧browski, Fabian Wagner
doaj +1 more source
Dynamical description of a quintom cosmological model nonminimally coupled with gravity
European Physical Journal C: Particles and Fields, 2020 In this work we have studied a cosmological model based on a quintom dark energy model non-minimally coupled with gravity, endowed with a specific potential energy of the exponential squared type.
Mihai Marciu
doaj +1 more source
A Critique of Cosmological Natural Selection [PDF]
, 2004 Mathematical physicist Lee Smolin has proposed a theory of Cosmological natural selection which, he argues, explains the existence of our life-supporting universe, and which, he claims, is superior to Anthropic Principle explanations.
McCabe, Gordon, Gordon Mccabe
core
Under-determination in Cosmology: an Invitation [PDF]
, 2012 I discuss how modern cosmology illustrates under-determination of theoretical hypotheses by data, in ways that are different from most philosophical discussions.
Butterfield, Jeremy, Jeremy Butterfield
core +1 more source
The absence of women's scientific contributions in core UK pre‐university science qualifications
British Educational Research Journal, EarlyView.Abstract Despite their groundbreaking contributions to our understanding of the natural world and the universe, women's roles in biology, chemistry, physics, astronomy, environmental science and geology remain largely absent from standard educational specifications in the United Kingdom (UK), particularly at Key Stage 4 (KS4) and Key Stage 5 (KS5), or ...
G. J. Cooke +7 more
wiley +1 more source
The dynamics of cosmological scenarios inspired by quantum gravity [PDF]
, 2006 PhDIn this thesis we study the dynamics of cosmological scenarios inspired by quantum gravity. Part I investigates novel features of the semi-classical regime of homogeneous and isotropic loop quantum cosmology.
Mulryne, David James
core +2 more sources
Feminist Anthropology, EarlyView.Abstract This article advances three claims regarding the matrilineal organization of Wiradjuri society in central New South Wales. Drawing on the late nineteenth and early twentieth century ethnographic record, it demonstrates that Wiradjuri descent, totem, moiety identity, and ceremonial authority were and are matrilineally organized, despite ...
Jessa Rogers
wiley +1 more source
Probing Dipole and Quadrupole Anisotropy in Gamma-Ray Bursts from Swift Dataset
UniverseTesting the validity of the cosmological principle’s assumption of large-scale isotropy remains crucial for modern cosmology. We investigate the angular distributions of gamma-ray bursts using the GRB catalog from Neil Gehrels Swift Observatory (Swift ...
Vedant Mokal, Shantanu Desai
doaj +1 more source
Lemaître Class Dark Energy Model for Relaxing Cosmological Constant
Universe, 2017 Cosmological constant corresponds to the maximally symmetric cosmological term with the equation of state p = − ρ . Introducing a cosmological term with the reduced symmetry, p r = − ρ in the spherically symmetric case, makes ...
Irina Dymnikova +2 more
doaj +1 more source