Results 71 to 80 of about 1,644,024 (262)
Journal of Quaternary Science, EarlyView.ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva +5 more
wiley +1 more source
Tackling the cosmological constant problem with scalar-tensor dark energy [PDF]
The Universe is expanding, and its expansion is accelerating according to observations. The simplest explanation for this is Einstein’s Cosmological Constant, which provides a negative pressure against gravitational instability. However, the Cosmological
Khan, Arnaz
core +1 more source
Effective cosmological constant induced by stochastic fluctuations of Newton's constant
Physics Letters B, 2016 We consider implications of the microscopic dynamics of spacetime for the evolution of cosmological models. We argue that quantum geometry effects may lead to stochastic fluctuations of the gravitational constant, which is thus considered as a ...
Marco de Cesare +2 more
doaj +1 more source
Configurational entropy and instability of tachyonic braneworld
Physics Letters B, 2020 We consider tachyonic braneworld with a bulk cosmological constant and investigate a configurational entropy of various magnitudes of scale factor. It is found that for a bulk negative/zero cosmological constant, the configurational entropy has a global ...
Chong Oh Lee
doaj +1 more source
Vacuum Energy, the Casimir Effect, and Newton’s Non-Constant
Universe, 2023 The idea of quantum mechanical vacuum energy contributing to the cosmological vacuum energy density is not new. However, despite the persisting cosmological constant problem, few investigations have focused on this subject.
Benjamin Koch +3 more
doaj +1 more source
Caring with forests: Human and more‐than‐human care in forest occupations in Germany
People and Nature, EarlyView.Abstract Drawing on ongoing ethnographic and participatory action research within forest occupations in Germany, this paper develops the concept of ‘caring with forests’ to theorise the mutual, multidimensional relationships of care that emerge between humans and more‐than‐human beings in environmental protest settings.
Sebastian Garbe
wiley +1 more source
AN ADJUSTABLE COSMOLOGICAL CONSTANT [PDF]
Physics Beyond the Standard Models of Particles, Cosmology and Astrophysics, 2011 Jihn E. Kim Department of Physics and Astronomy and Center for Theoretical Physics, Seoul National University, Seoul 151-747, Korea DOI: http://dx.doi.org/10.3204/DESY-PROC-2010-03/kim jihn After showing the axion couplings, I review the Hawking type solution of the cosmological constant problem, present a (probably) correct way to calculate the ...
openaire +2 more sources
Cosmological constant in spinfoam cosmology [PDF]
Physical Review D, 2011 4 pages, 2 ...
Bianchi, Eugenio +3 more
openaire +2 more sources
People and Nature, EarlyView.Abstract Despite an ever‐growing body of environmental laws, biodiversity loss and climate breakdown persist globally. This has prompted debate over whether existing legal regimes can be strengthened sufficiently to address these crises, or whether more transformative legal approaches are needed The concept of rights of nature, which is gaining ...
Maximilian Nawrath +3 more
wiley +1 more source
Exact rotating black hole solutions for f(R) gravity by modified Newman Janis algorithm
European Physical Journal C: Particles and Fields, 2023 We show that the f(R)-gravity theories with constant Ricci scalar in the Jordan/Einstein frame can be described by Einstein or Einstein–Maxwell gravity with a cosmological term and a modified gravitational constant.
Pankaj Chaturvedi +3 more
doaj +1 more source