Results 81 to 90 of about 16,133 (302)

Cosmological Constant and Renormalization of Gravity

open access: yesGalaxies, 2018
In arXiv:1601.02203 and arXiv:1702.07063, we have proposed a topological model with a simple Lagrangian density and have tried to solve one of the cosmological constant problems.
Shin’ichi Nojiri
doaj   +1 more source

Testing the Standard Cosmological Model [PDF]

open access: yes, 2011
This thesis exploits the wealth of information contained in the existing cosmological surveys, and demonstrates how the use of tools such as two-point statistics permit the extraction of such information.
SAWANGWIT, UTANE
core  

Amidst (waste) abundance: world‐making and struggles in hosting a municipal landfill in the Bolivian lowlands Au milieu de l'abondance (de déchets) : fabrication du monde et luttes liées à la gestion d'une décharge municipale dans les basses terres de Bolivie

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
In recent decades, solid waste has proliferated worldwide, becoming a pressing global issue. This article explores the role of Indigenous people dwelling within and upon emerging waste scenarios, with a specific focus on involved forms of sociality and ontological contestation. Drawing on the case of a municipal landfill sited on a Guarani community in
Vanesa Martín Galán
wiley   +1 more source

Multi-charged geometries with cosmological constant

open access: yesJournal of High Energy Physics
Motivated by gauged supergravities, we consider gravitational systems coupled to arbitrary numbers of fluxes and scalar fields. We show that simple ansatze for asymptotically AdS solutions in these systems fully determine the potential for the scalars ...
Rhucha Deshpande, Oleg Lunin
doaj   +1 more source

Effective cosmological constant induced by stochastic fluctuations of Newton's constant

open access: yesPhysics 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

Exact rotating black hole solutions for f(R) gravity by modified Newman Janis algorithm

open access: yesEuropean 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

GHOSTLY ENCOUNTERS IN LAGOS: Virtual Reality between Urban Marketing and Media Activism

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract This article examines the role of virtual reality (VR) technologies in mediating and contesting dominant visions of urban futures in West Africa. Drawing on theoretical insights from a hybridization of the work of the German‐born Jewish critic Walter Benjamin and the Nigerian writer Amos Tutuola, I introduce the concept of phantasmagoria as a ...
Hervé Roquet
wiley   +1 more source

Cosmological constant [PDF]

open access: yes, 2014
The aim of this work is concentration of the relevant knowledges from area history of the cosmological constant. Theory listed in time sequence show its origin, evolution and problems associated with it. In this work are commented static models which are
Bjelka, Jakub
core  

The cosmological constant on the non-cosmological scales [PDF]

open access: yes, 2021
The cosmological constant Λ was first added to the gravitational field equations in 1917 by Albert Einstein. Einstein preferred the static universe, whereas field equations without the cosmological constant did not allow for such a scenario.
Liška, Andrej
core  

COSMOLOGICAL MARKINGS AND ERASURES: The Political Theology of State‐Led Gentrification and Heritagization

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract This article investigates the symbolic politics of state‐led gentrification and heritagization, focusing on how these processes serve to ‘glorify’ state power. Drawing on Agamben's political theology, Bourdieu's notion of symbolic power and space, and political heritage studies, we argue that the symbolic politics of state glorification can ...
Wouter van Gent   +2 more
wiley   +1 more source

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