Results 81 to 90 of about 1,644,024 (262)
Integrating multimodal data and machine learning for entrepreneurship research
Strategic 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
Spacetime Foam, Midisuperspace, and the Cosmological Constant
, 2021 Perhaps the cosmological constant really is huge at the Planck scale, but is “hidden” by Planck scale quantum fluctuations of spacetime. I briefly review this proposal and provide some evidence, coming from a simplified midisuperspace model, that an ...
Carlip, Steven, Steven Carlip
core +1 more source
Bulk viscous cosmological models with a cosmological constant: Observational constraints
Astronomy & AstrophysicsAims. We investigate whether viscous cold dark matter (vCDM) in a Λ-dominated Friedmann-Lemaître-Robertson-Walker (FLRW) universe can alleviate the Hubble tension, while satisfying thermodynamic constraints.
Noemí Villalobos R. +3 more
doaj +1 more source
Cosmography of the Dynamical Cosmological «Constant»
East European Journal of Physics, 2019 The paper considers a cosmographical approach to analyze cosmological models. Cosmography is a method to describe the kinematics of the cosmological expansion based only on the cosmological principle. We consider a method of treating free parameters of a
Oryna Ivashtenko
doaj +1 more source
Spatial Statistics for Screening Molecular Structures
Small, EarlyView.Deep architectures for materials discovery demand vast training data and obscure the structure‐property link. This review shows how spatial statistics offer a physically grounded alternative: voxelized fields and two‐point correlations, compressed by principal component analysis, yield convex, interpretable descriptors. Lean surrogates then reach sub‐2%
Pranoy Ray, Surya R. Kalidindi
wiley +1 more source
Gravity in spacetimes with cosmological constants [PDF]
, 2009 This thesis is composed of two parts: gravity in the spacetime with a negative/positive cosmological constant. The first part, which is the negative case, devotes to constructing the IIB supergravity dual solution in AdS/CFT correspondence for N = (1, 0)
Dai, Shou-Huang
core
Multi-charged geometries with cosmological constant
Journal of High Energy PhysicsMotivated by gauged supergravities, we consider gravitational systems coupled to arbitrary numbers of fluxes and scalar fields. We show that simple ansatze for asymptotically AdS solutions in these systems fully determine the potential for the scalars ...
Rhucha Deshpande, Oleg Lunin
doaj +1 more source
Entangled political institutions and forms: From corporatisation to treaty
Australian Journal of Public Administration, EarlyView.Abstract The lands and waters now called Australia have been home to diverse political ordering and institutions for thousands of generations. The comparatively very recent arrival of settlers and the violent imposition of their political structures and institutions have forced First Nations to respond to, adapt to, resist, and refuse colonial ...
Morgan Brigg +4 more
wiley +1 more source
Dimensionality and the cosmological constant [PDF]
General Relativity and Gravitation, 2006 In the Kaluza-Klein model with a cosmological constant and a flux, the external spacetime and its dimension of the created universe from a $S^s \times S^{n-s}$ seed instanton can be identified in quantum cosmology. One can also show that in the internal space the effective cosmological constant is most probably zero.
openaire +2 more sources
Cosmological Constant and Renormalization of Gravity
Galaxies, 2018 In arXiv:1601.02203 and arXiv:1702.07063, we have proposed a topological model with a simple Lagrangian density and have tried to solve one of the cosmological constant problems.
Shin’ichi Nojiri
doaj +1 more source