Results 51 to 60 of about 6,695,532 (296)
Jordan frame in supergravity and cosmology
Journal of High Energy PhysicsThe superconformal action can be gauge-fixed in a gauge where it leads to the Einstein frame supergravity defined by a Kähler potential K z z ¯ $$ \mathcal{K}\left(z,\overline{z}\right) $$ , or in a gauge where it leads to a Jordan frame supergravity ...
Renata Kallosh
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Polynomial Affine Model of Gravity: After 10 Years
UniverseThe polynomial affine model of gravity was proposed as an alternative to metric and metric-affine gravitational models. What, in the beginning, was thought to be a source of unpredictability—the presence of many terms in the action—turned out to be a ...
Oscar Castillo-Felisola +6 more
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Programmable Sequential 4D Actuation in Multistable Kirigami Metamaterials
Advanced Science, EarlyView.This study presents a modular kirigami metamaterial framework enabling programmable multistability and sequential 4D actuation. By coupling geometry‐controlled multistability with material‐dependent recovery kinetics, spatiotemporal deformation can be precisely programmed.
Eui‐Hyun Kim +3 more
wiley +1 more source
The BINGO/ABDUS Project: Forecast for Cosmological Parameters from a Mock Fast Radio Burst Survey
The Astrophysical JournalThere are various surveys that will provide excellent data to search for and localize fast radio bursts (FRBs). The BINGO project will be one such survey, and this collaboration has already estimated an FRB detection rate that the project will yield.
Xue Zhang +17 more
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Cosmological Models and Stability [PDF]
, 2014 Based on a talk at the conference "Relativity and Gravitation, 100 Years after Einstein in Prague", at Charles University, Prague, June 25-29 ...
openaire +3 more sources
The Made‐in‐Africa Evaluation framework: A decolonial approach to program evaluation
American Journal of Community Psychology, EarlyView.Abstract The Made in Africa Evaluation (MAE) framework is a decolonial approach to program evaluation developed by African evaluators over the past 14 years. MAE may be appropriate to community psychologists who practice program evaluation or conduct research in Africa, but little is known about its implementation.
Takatso Sibanda, Robin Lin Miller
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Does cosmological expansion affect local physics? [PDF]
, 2013 In this contribution I wish to address the question whether, and how, the global cosmological expansion influences local physics, like particle orbits and black hole geometries.
Domenico Giulini, Giulini, Domenico
core
The Astrophysical JournalWe study the cosmological consequences of the extended uncertainty principle (EUP) by deriving modified Friedmann equations through thermodynamic arguments.
M. Roushan, N. Rashidi
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METAPHYSICS AND EPISTEMOLOGY IN STEPHEN HAWKING'S THEORY OF THE CREATION OF THE UNIVERSE
Zygon, 1996 . In 1981 S. W. Hawking and J. Hartle presented a quantum mechanical description of the early stages of possible cosmological evolution. Their proposal was interpreted by many authors as a pattern of cosmic creation from nothing in which no divine ...
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Dynamical Analysis of Scalar Field Cosmologies with Spatial Curvature
The Open Journal of Astrophysics, 2016 We explore the dynamical behaviour of cosmological models involving a scalar field (with an exponential potential and a canonical kinetic term) and a matter fluid with spatial curvature included in the equations of motion.
Mateja Gosenca, Peter Coles
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