Results 91 to 100 of about 203,417 (295)

The Flatness Problem and the Variable Physical Constants

open access: yesGalaxies, 2019
We have used the varying physical constant approach to resolve the flatness problem in cosmology. Friedmann equations are modified to include the variability of speed of light, gravitational constant, cosmological constant, and the curvature constant ...
Rajendra P. Gupta
doaj   +1 more source

Integrating multimodal data and machine learning for entrepreneurship research

open access: yesStrategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary Extant research in neuroscience suggests that human perception is multimodal in nature—we model the world integrating diverse data sources such as sound, images, taste, and smell. Working in a dynamic environment, entrepreneurs are expected to draw on multimodal inputs in their decision making.
Yash Raj Shrestha, Vivianna Fang He
wiley   +1 more source

Cancellation of quantum corrections on the soft curvature perturbations

open access: yesJournal of High Energy Physics
We study the cancellation of quantum corrections on the superhorizon curvature perturbations from subhorizon physics beyond the single-clock inflation from the viewpoint of the cosmological soft theorem.
Yuichiro Tada   +2 more
doaj   +1 more source

Phenomenology and cosmology of weakly coupled string theory [PDF]

open access: yes, 1998
The weakly coupled vacuum of $E_8\otimes E_8$ heterotic string theory remains an attractive scenario for phenomenolgy and cosmology. The particle spectrum is reviewed and the issues of gauge coupling unification, dilaton stabilization and modular ...
Gaillard, Mary K.
core   +3 more sources

Testing the Multiverse: Bayes, Fine-Tuning and Typicality

open access: yes, 2017
Theory testing in the physical sciences has been revolutionized in recent decades by Bayesian approaches to probability theory. Here, I will consider Bayesian approaches to theory extensions, that is, theories like inflation which aim to provide a deeper
Barnes, Luke A.
core   +1 more source

M-Theory and Cosmology

open access: yes, 2007
JHEP LaTeX, 86 pages, 3 eps ...
openaire   +2 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Emergent inflation from a Nambu–Jona-Lasinio mechanism in gravity with non-dynamical torsion

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We discuss how inflation can emerge from a four-fermion interaction induced by torsion. Inflation can arise from coupling torsion to Standard Model fermions, without any need of introducing new scalar particles beyond the Standard Model.
Andrea Addazi   +2 more
doaj   +1 more source

The cosmology with the Dp-brane gas

open access: yes, 1999
We study the effect of the Dp-brane gas in string cosmology. When one kind of Dp-brane gas dominates, we find that the cosmology is equivalent to that of the Brans-Dicke theory with the perfect fluid type matter. We obtain $\gamma$, the equation of state
A. A. Tseytlin   +36 more
core   +1 more source

From Particle to Purpose: A Systems‐Theoretical Model of Unity and Coherent Adaptation

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT This paper develops a conceptual integration that bridges classical systems theories with insights from the Islamic intellectual tradition, focusing on the notion of zerre (particle) as articulated by Said Nursî. We reinterpret zerre as a systems‐theoretical agent that exhibits lawful responsiveness without autonomy, offering a new lens on how
Erhan Atay
wiley   +1 more source

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