Results 61 to 70 of about 670,040 (334)
Gravitation in Unified Scalar Field Theory
Universe, 2021 The scalar field of space-time film is considered as unified fundamental field. The field model under consideration is the space-time generalization of the model for a two-dimensional thin film.
Alexander A. Chernitskii
doaj +1 more source
Random scalar fields and hyperuniformity [PDF]
Journal of Applied Physics, 2017 Disordered many-particle hyperuniform systems are exotic amorphous states of matter that lie between crystals and liquids. Hyperuniform systems have attracted recent attention because they are endowed with novel transport and optical properties. Recently, the hyperuniformity concept has been generalized to characterize two-phase media, scalar fields ...
Zheng Ma, Salvatore Torquato
openaire +2 more sources
Torsion, Dirac Field, Dark Matter and Dark Radiation
, 2006 The role of torsion and a scalar field $\phi$ in gravitation, especially, in the presence of a Dirac field in the background of a particular class of the Riemann-Cartan geometry is considered here. Recently, a Lagrangian density with Lagrange multipliers
Bandyopadhyay P. +8 more
core +3 more sources
Population Ecology, EarlyView.We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva +6 more
wiley +1 more source
Einstein-aether theory in Weyl integrable geometry
European Physical Journal C: Particles and Fields, 2020 We study the Einstein-aether theory in Weyl integrable geometry. The scalar field which defines the Weyl affine connection is introduced in the gravitational field equation.
Andronikos Paliathanasis +2 more
doaj +1 more source
Scalar fields and the FLRW singularity [PDF]
Classical and Quantum Gravity, 2019 The dynamics of multiple scalar fields on a flat FLRW spacetime can be described entirely as a relational system in terms of the matter alone. The matter dynamics is an autonomous system from which the geometrical dynamics can be inferred, and this autonomous system remains deterministic at the point corresponding to the singularity of the cosmology ...
openaire +3 more sources
Stippling of 2D Scalar Fields [PDF]
IEEE Transactions on Visualization and Computer Graphics, 2019 We propose a technique to represent two-dimensional data using stipples. While stippling is often regarded as an illustrative method, we argue that it is worth investigating its suitability for the visualization domain. For this purpose, we generalize the Linde-Buzo-Gray stippling algorithm for information visualization purposes to encode continuous ...
Jochen Gortler +4 more
openaire +4 more sources
Dynamics of Scalar field in a Brane World
, 2002 We study the dynamics of a scalar field in the brane cosmology. We assume that a scalar field is confined in our 4-dimensional world. As for the potential of the scalar field, we discuss three typical models: (1) a power-law potential, (2) an inverse ...
A. Mazumdar +51 more
core +1 more source
Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders
Population Ecology, EarlyView.We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa +2 more
wiley +1 more source
Noncommutativity and scalar field cosmology [PDF]
Physical Review D, 2007 4 Pages, 2 figures, Revtex ...
M. Sabido +3 more
openaire +2 more sources