Results 61 to 70 of about 17,761 (262)

Dynamical System Approach to Cosmological Models with a Varying Speed of Light [PDF]

, 2002
Methods of dynamical systems have been used to study homogeneous and isotropic cosmological models with a varying speed of light (VSL). We propose two methods of reduction of dynamics to the form of planar Hamiltonian dynamical systems for models with a ...
A. Albrecht, A. Vilenkin, A. Vilenkin, A.A. Andronov, Adam Krawiec, B.A. Bassett, B.P. Schmidt, J.D. Barrow, J.D. Barrow, J.D. Barrow, J.D. Barrow, J.D. Barrow, J.K. Webb, J.W. Moffat, J.W. Moffat, M. Biesiada, M. Biesiada, M. Szydłowski, M. Szydłowski, M.A. Clayton, Marek Szydłowski, P.P. Avelino, P.P. Avelino, S. Perlmutter, S.H.S. Alexander   +24 more
core   +2 more sources

Ecologization Is Not a Metaphor: Museums in the Web of Life

Curator: The Museum Journal, EarlyView.
ABSTRACT This article documents and critiques emerging accounts of museum “ecologization”. Drawing on political ecology, materialist theory, and contemporary museum practice, we challenge dominant frameworks of ecological modernization and advocate for a more critical understanding of museums in the web of life.
Colin Sterling, Harry Reddick, Giulia Bellinetti   +2 more
wiley   +1 more source

Enchanting the Otherwise: Magical Realism and the Gendered Ontologies of Organizational Becoming

Gender, Work &Organization, EarlyView.
ABSTRACT This paper enacts a feminist‐posthumanist reimagining of gender as ontological disturbance, using magical realism not as metaphor but as epistemological method. Rejecting representational logics and the managerial rationalities of organizational realism, we advance gender not as identity or role but as spectral interference—a transversal ...
Max Ganzin, Diana Ivanycheva
wiley   +1 more source

In What Sense Is the Early Universe Fine-Tuned? [PDF]

, 2014
It is commonplace in discussions of modern cosmology to assert that the early universe began in a special state. Conventionally, cosmologists characterize this fine-tuning in terms of the horizon and flatness problems.
Carroll, Sean M.
core   +1 more source

Cosmology and Conformally Flat Space. II

Hiroshima Mathematical Journal, 1941
Not ...
openaire   +3 more sources

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Quasi-conformal curvature tensor on sequential doubly warped product manifolds with applications

European Physical Journal C: Particles and Fields
This paper introduces a comprehensive geometric framework that bridges two important but previously disconnected areas of Riemannian geometry: the theory of sequential doubly warped product (SDWP) manifolds and the theory of quasi-conformal curvature ...
Hatem E. Semary, Bang-Yen Chen, Uday Chand De, Ayman Elsharkawy   +3 more
doaj   +1 more source

Principles, Progress and Problems in Inflationary Cosmology [PDF]

, 2002
Inflationary cosmology has become one of the cornerstones of modern cosmology. Inflation was the first theory within which it was possible to make predictions about the structure of the Universe on large scales, based on causal physics.
Brandenberger, Robert H.
core   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 more
wiley   +1 more source

Horizon, homogeneity and flatness problems: do their resolutions really depend upon inflation?

European Physical Journal C: Particles and Fields
The horizon problem, encountered in cosmology, is derived as such for world models based on Robertson–Walker metric where homogeneity and isotropy of the universe is assumed to begin with and is guaranteed for all epochs.
Ashok K. Singal
doaj   +1 more source