Results 101 to 110 of about 193,127 (291)

Homogeneous cosmologies with cosmological constant

, 1999
Spatially homogeneous cosmological models with a positive cosmological constant are investigated, using dynamical systems methods. We focus on the future evolution of these models.
A. A. Coley, A. A. Coley, A. K. Raychaudhuri, A. P. Billyard, A. R. King, A. Rothman, C. B. Collins, C. B. Collins, C. G. Hewitt, C. Uggla, C. Uggla, C. W. Misner, E. J. Copeland, E. Schrödinger, E. Weber, E. Weber, George F. R. Ellis, H. P. Robertson, H. van Elst, J. Ehlers, J. Wainwright, J. Wainwright, J. Wainwright, M. Goliath, M. S. Madsen, M. S. Madsen, Martin Goliath, P. Aninos, P. Vargas Moniz, R. J. van den Hoogen, R. M. Wald, R. Stabell, S. W. Hawking, U. Brauer, V. A. Belinskii, V. A. Belinskii, Ø. Grøn   +36 more
core   +1 more source

COSMOLOGICAL MODELS GENERALIZING ROBERTSON–WALKER MODELS [PDF]

International Journal of Modern Physics D, 2003
Considering the physical 3-space t= constant of the space–time metrics as spheroidal and pseudo-spheroidal, cosmological models which are generalizations of Robertson–Walker models are obtained. Specific forms of these general models as solutions of Einstein's field equations are also discussed in the radiation and the matter dominated era of the ...
openaire   +3 more sources

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

Sustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos, Ana Claudia de Araujo Moxotó, Jurandir Moura Dutra   +2 more
wiley   +1 more source

The cosmological models with jump discontinuities

European Physical Journal C: Particles and Fields, 2018
The article is dedicated to one of the most undeservedly overlooked properties of the cosmological models: the behaviour at, near and due to a jump discontinuity.
Artyom Yurov, Artyom Astashenok, Valerian Yurov   +2 more
doaj   +1 more source

STRUCTURED COSMOLOGICAL MODELS [PDF]

Proceedings of the National Academy of Sciences, 1965
Omer, G. C. jun., Starrfield, S. G., Kannenberg, L. C.   +2 more
openaire   +3 more sources

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

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

Systems 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

Post‐Traumatic Growth in the Global South: Possibilities in Relational Ethics from Communities to Classrooms

TESOL Quarterly, EarlyView.
Abstract This article reports on a qualitative study of the way instructors and students understand and respond to traumatizing events in a Sri Lankan university. It shows how the attitudes and practices in the society at large are carried over to classrooms even though local institutions do not have a programmatic trauma‐informed pedagogy.
Suresh Canagarajah, Canista Arthie Hensman   +1 more
wiley   +1 more source

Squeezing, chaos and thermalization in periodically driven quantum systems: the case of bosonic preheating

Journal of High Energy Physics
The phenomena of Squeezing and chaos have recently been studied in the context of inflation. We apply this formalism in the post-inflationary preheating phase.
Ayan Chakraborty, Debaprasad Maity
doaj   +1 more source

Cosmological Models with Variable “Constants” [PDF]

International Journal of Theoretical Physics, 2000
15 pages.
openaire   +3 more sources