Results 71 to 80 of about 1,773 (231)
Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.Abstract We investigated the regolith parent rock (“protolith”) properties of Mare Tranquillitatis and Marius Hills on the Moon, utilizing lunar pit craters (“lua”) to contextualize observations of rock abundance and crater degradation. We discovered a significant difference in underlying materials: the region around the Tranquillitatis lua is ...
E. S. Costello +5 more
wiley +1 more source
Tachyacoustic cosmology: An alternative to inflation [PDF]
Physical Review D, 2010 11 pages, LaTeX (V2: references added. Version submitted to PRD)
Bessada, Dennis +3 more
openaire +2 more sources
When Rituals Fail: Rationalization, Bayesianism, and Predictive Processing
Evolutionary Anthropology: Issues, News, and Reviews, Volume 34, Issue 4, December 2025.ABSTRACT Why do rituals persist in human societies despite their frequent and observable failures to produce intended outcomes? This paper advances a two‐part argument to explain this resilience. First, at the individual level, I argue that belief in ritual efficacy is maintained through Bayesian‐rational processes, where the invocation of auxiliary ...
Ze Hong
wiley +1 more source
de Sitter Excited State in Heterotic E8×E8${\rm E}_8 \times {\rm E}_8$ Theory
Fortschritte der Physik, Volume 73, Issue 12, December 2025.Abstract A novel duality sequence is devised to study late‐time cosmology in the heterotic E8×E8${\rm E}_8 \times {\rm E}_8$ setup of Horava and Witten with dynamical walls that are moving towards each other. Remarkably, the dimensionally reduced 4‐dimensional theory does not violate NEC and no bouncing or ekpyrotic phase is observed.
Suddhasattwa Brahma +5 more
wiley +1 more source
Expected value, to a point: Moral decision‐making under background uncertainty
Noûs, Volume 59, Issue 4, Page 1093-1125, December 2025.Abstract Expected value maximization gives plausible guidance for moral decision‐making under uncertainty in many situations. But it has unappetizing implications in ‘Pascalian’ situations involving tiny probabilities of extreme outcomes. This paper shows, first, that under realistic levels of ‘background uncertainty’ about sources of value independent
Christian Tarsney
wiley +1 more source
Lessons from the void: What Boltzmann brains teach
Analytic Philosophy, Volume 66, Issue 4, Page 594-621, December 2025.Abstract Some physical theories predict that almost all brains in the universe are Boltzmann brains, that is, short‐lived disembodied brains that are accidentally assembled as a result of thermodynamic or quantum fluctuations. Physicists and philosophers of physics widely regard this proliferation as unacceptable, and so take its prediction as a basis ...
Bradford Saad
wiley +1 more source
Cosmology Due to Thermodynamics of Apparent Horizon
Annalen der Physik, Volume 537, Issue 11, November 2025.Effective cosmological constant as a function of the Hubble rate H for different entropy parameters b. Figure shows the asymptotic of the effective cosmological constant. At H = 0 the effective cosmological constant vanishes. Abstract This study proposes new entropy of the apparent horizon Sh=(1/β)arctan(βSBH)$S_h=(1/\beta)\arctan (\beta S_{BH ...
S. I. Kruglov
wiley +1 more source
Entropy, 2012 We develop the general reconstruction scheme in two scalar model. The quintom-like theory which may describe (different) non-singular Little Rip or de Sitter cosmology is reconstructed.
Yusaku Ito +2 more
doaj +1 more source
BRANE INFLATION FROM MIRAGE COSMOLOGY
The Ninth Marcel Grossmann Meeting, 2002 15 pages, 2 figures, Invited Talk given at IX Marcel Grossmann Meeting, Rome, 2-8 July ...
openaire +2 more sources
Kaluza-Klein cosmological inflation
Nuclear Physics B, 1985 Abstract We discuss cosmological inflation resulting from slow rollover to equilibrium of the radius of the compact manifold in Kaluza-Klein theories. Reheating of the universe after this inflation, and the spectrum of density fluctions are also considered.
D. Bailin, A. Love, J. Stein-Schabes
openaire +1 more source