Results 81 to 90 of about 197,098 (270)

The Solution Cosmological Constant Problem [PDF]

, 2019
The cosmological constant problem arises because the magnitude of vacuum energy density predicted by the Quantum Field Theory is about 120 orders of magnitude larger then the value implied by cosmological observations of accelerating
Foukzon, Jaykov
core  

Varying Constants, Gravitation and Cosmology [PDF]

Living Reviews in Relativity, 2011
Abstract Fundamental constants are a cornerstone of our physical laws. Any constant varying in space and/or time would reflect the existence of an almost massless field that couples to matter. This will induce a violation of the universality of free fall.
openaire   +5 more sources

Cosmological constant, fine structure constant and beyond [PDF]

The European Physical Journal C, 2017
In the present work, we consider the cosmological constant model $ \propto ^{-6}$, which is well motivated from three independent approaches. As is well known, the hint of varying fine structure constant $ $ was found in 1998. If $ \propto ^{-6}$ is right, it means that the cosmological constant $ $ should also be varying. Here, we try to develop
Wei, Hao, Zou, Xiao-Bo, Li, Hong-Yu, Xue, Dong-Ze   +3 more
openaire   +2 more sources

Post‐Traumatic Growth in the Global South: Possibilities in Relational Ethics from Communities to Classrooms

TESOL Quarterly, EarlyView.
Abstract This article reports on a qualitative study of the way instructors and students understand and respond to traumatizing events in a Sri Lankan university. It shows how the attitudes and practices in the society at large are carried over to classrooms even though local institutions do not have a programmatic trauma‐informed pedagogy.
Suresh Canagarajah, Canista Arthie Hensman   +1 more
wiley   +1 more source

Quintessence and the cosmological constant

, 2002
Quintessence -- the energy density of a slowly evolving scalar field -- may constitute a dynamical form of the homogeneous dark energy in the universe. We review the basic idea in the light of the cosmological constant problem.
Abbott, Albrecht, Amendola, Armendariz-Picon, Banks, Barr, Barreiro, Bean, Bean, C. Wetterich, Caldwell, Chiba, Copeland, Copeland, Doran, Doran, Dvali, Ferreira, Ferreira, Freese, Frieman, Hebecker, M. Doran, Peccei, Perlmutter, Ratra, Ratra, Reuter, Riess, Steinhardt, Steinhardt, Webb, Wetterich, Wetterich, Wetterich, Wetterich, Wetterich, Wetterich, Özer   +38 more
core   +2 more sources

Autopsy, deathways, and intercultural healthcare in the southern Peruvian Andes Autopsie, pratiques mortuaires et soins de santé interculturels dans le sud des Andes péruviennes

Journal of the Royal Anthropological Institute, EarlyView.
While death remains a popular topic for anthropology, relatively few ethnographic accounts consider the modern bureaucratic processes accompanying it. One such process is public health autopsy, which scholars have largely taken for granted. Existing analysis has regarded it as a form of ‘cultural brokering’ and autopsy reluctance in communities is seen,
David M.R. Orr
wiley   +1 more source

Neutrino mixing and cosmological constant

, 2004
We report on the recent result that the non--perturbative vacuum structure associated with neutrino mixing leads to a non--zero contribution to the value of the cosmological constant.
Blasone, Massimo, Capolupo, Antonio, Capozziello, Salvatore, Carloni, Sante, Vitiello, Giuseppe   +4 more
core   +1 more source

‘Vitamins’, shortcuts, and athletic citizenship in Ethiopia and Cameroon: considering sporting ethics beyond biomedicine « Vitamines », courts‐circuits et citoyenneté sportive en Éthiopie et au Cameroun : l’éthique du sport, au‐delà de la biomédecine

Journal of the Royal Anthropological Institute, EarlyView.
This article argues that the current way of thinking about ethics in sport in primarily biomedical terms, and in particular in terms of the presence of particular pharmaceutical substances, fails to account for broader notions of sporting ethics and fairness in the Global South.
Michael Crawley, Uroš Kovač
wiley   +1 more source

Covariant entropy conjecture and concordance cosmological models

, 2008
Recently a covariant entropy conjecture has been proposed for dynamical horizons. We apply this conjecture to concordance cosmological models, namely, those cosmological models filled with perfect fluids, in the presence of a positive cosmological ...
Ashtekar A, Bousso R, Bousso R, Bousso R, Gao S, He S, He S, Hongbao Zhang, Hooft G’ t, Rideout D, Song He, Wald R M   +11 more
core   +1 more source

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

Journal 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