Results 171 to 180 of about 89,722 (300)

Observer in quantum cosmology

open access: yes
10 ...
Gorobey, Natalia   +2 more
openaire   +2 more sources

Lessons from the void: What Boltzmann brains teach

open access: yesAnalytic Philosophy, EarlyView.
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

Observations in Cosmology

open access: yesThe Astrophysical Journal, 1966
Jerome Kristian, Rainer K. Sachs
openaire   +3 more sources

The Impacts of Weather Variability and Shocks on Farmers and Indigenous Peoples' Consumption: Evidence From Panama

open access: yesReview of Development Economics, EarlyView.
ABSTRACT Weather variability and shocks pose significant challenges for tropical developing countries, making it crucial to understand their effects on consumption to address the existing deficiencies among the most vulnerable groups. This study examines the impact of weather variability and shocks on household consumption in Panama, utilizing repeated
Ambar Lineth Chavez Espinosa   +1 more
wiley   +1 more source

PSR, Modal Collapse, and Open Future in Ibn Sīnā's Philosophy

open access: yesTheoria, EarlyView.
ABSTRACT It has been contended that the Principle of Sufficient Reason (PSR) implies necessitarianism—that is, the view that everything occurs out of necessity. Discussing a well‐known argument for this claim developed by contemporary metaphysicians, I show that Ibn Sīnā has anticipated a counterpart of this argument, and that is precisely why he is ...
Mohammad Saleh Zarepour
wiley   +1 more source

Data‐Driven Review on Aerogels and Polymeric Aerogels

open access: yesAngewandte Chemie, Volume 137, Issue 28, July 7, 2025.
A review goes to data‐driven. An exhaustive literature survey provides an overview of research status on aerogels, a category of highly porous solids with unique physicochemical properties. Statistical/data‐driven analysis tells us positive/negative aspects; aerogels have a promising potential to contribute to emerging energy/environmental issues ...
Satoru Takeshita   +2 more
wiley   +2 more sources

Model-independent Way to Determine the Hubble Constant and the Curvature from the Phase Shift of Gravitational Waves with DECIGO

open access: yesThe Astrophysical Journal Letters
In this Letter, we propose a model-independent method to determine the Hubble constant and curvature simultaneously by taking advantage of the possibilities of future spaceborne gravitational-wave detector DECIGO in combination with the radio quasars as ...
Tonghua Liu   +4 more
doaj   +1 more source

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