Results 101 to 110 of about 536,719 (375)

Cosmological Plebanski theory

, 2007
We consider the cosmological symmetry reduction of the Plebanski action as a toy-model to explore, in this simple framework, some issues related to loop quantum gravity and spin-foam models.
A. Ashtekar, A. Perez, A.S. Cattaneo, Alejandro Perez, D. Birmingham, E. Buffenoir, F. Conrady, G. Horowitz, H. Kodama, J. Barrett, J. Barrett, J. Engle, J.F. Plebanski, K. Noui, Karim Noui, Kevin Vandersloot, L. Freidel, L. Freidel, M. Bojowald, R. De Pietri, S. Holst, T. Thiemann   +21 more
core   +1 more source

Cosmological smoothed particle hydrodynamics simulations: a hybrid multiphase model for star formation [PDF]

, 2002
We present a model for star formation and supernova feedback that describes the multiphase structure of star-forming gas on scales that are typically not resolved in cosmological simulations.
V. Springel, Lars Hernquist Mpa, Harvard-CfA   +2 more
semanticscholar   +1 more source

Cheia de axé (full of axé): Spirituality, resistance, and repair in Pernambuco's Afro‐Brazilian traditional communities

Feminist Anthropology, EarlyView.
Abstract This article explores how Afro‐Brazilian communities in Pernambuco respond to state‐led industrial development through culturally rooted practices of resistance and repair. Drawing on archival and ethnographic research in the coastal municipalities of Cabo de Santo Agostinho and Ipojuca, this study traces the effects of Brazil's large‐scale ...
Shelly Annette Biesel
wiley   +1 more source

Explicit construction of Penrose diagrams for black hole to white hole transition with spacelike thin shells

Scientific Reports
In this article, we explicitly construct the coordinates associated with the Penrose diagram in spacetimes connected via a spacelike thin shell in the following two examples: the generalized black-to-white hole bounce with mass difference and the ...
Wei-Chen Lin, Dejan Stojkovic, Dong-han Yeom   +2 more
doaj   +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

Constraining the $\Lambda$CDM and Galileon models with recent cosmological data [PDF]

, 2017
The Galileon theory belongs to the class of modified gravity models that can explain the late-time accelerated expansion of the Universe. In previous works, cosmological constraints on the Galileon model were derived, both in the uncoupled case and with ...
Astier, P., Babichev, E., Besançon, M., Guy, J., Möller, A., Neveu, J., Ruhlmann-Kleider, V.   +6 more
core   +4 more sources

E pur si muove: Galilean-invariant cosmological hydrodynamical simulations on a moving mesh [PDF]

, 2009
Hydrodynamic cosmological simulations at present usually employ either the Lagrangian smoothed particle hydrodynamics (SPH) technique or Eulerian hydrodynamics on a Cartesian mesh with (optional) adaptive mesh refinement (AMR). Both of these methods have
V. Springel
semanticscholar   +1 more source

Phantom cosmologies

Physical Review D, 2004
12 pages, revtex, 3 figures, 1 table, references ...
openaire   +2 more sources

COSMOLOGICAL BACKREACTION [PDF]

The Twelfth Marcel Grossmann Meeting, 2012
15 pages, 3 figures; presented at the 12th Marcel Grossmann Meeting, Paris, July ...
openaire   +3 more sources

Queer configurations: The female divine, regional identity, and Queer‐religious belonging in South India

Feminist Anthropology, EarlyView.
Abstract This article explores how queerness and religion intersect in a unique enactment of Bathukamma, a flower festival honoring the female divine in Hyderabad, the capital of the South Indian state of Telangana. Drawing on theories of figuration, I analyze how local queer organizations celebrate the festival in a way that engages two distinctive ...
Stefan Binder
wiley   +1 more source