Results 61 to 70 of about 9,390,606 (386)

Phase Transitions in Convection

open access: yesEast European Journal of Physics, 2019
The paper presents the results of the study of the models of convective instability near its threshold of thin layers of liquid and gas bounded by poorly conducting walls.
Ivan V. Gushchin   +2 more
doaj   +1 more source

Thermalon mediated phase transitions in Gauss-Bonnet gravity

open access: yes, 2016
Thermalons can mediate phase transitions between different vacua in higher curvature gravity, potentially changing the asymptotic structure of the spacetime. Treating the cosmological constant as a dynamical parameter, we study these phase transitions in
Hennigar, Robie A.   +2 more
core   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Activity-induced phase transition in a quantum many-body system

open access: yesPhysical Review Research, 2022
A crowd of nonequilibrium entities can show phase transition behaviors that are prohibited in conventional equilibrium setups. An interesting question is whether similar activity-driven phase transitions also occur in pure quantum systems.
Kyosuke Adachi   +2 more
doaj   +1 more source

First order dynamical phase transitions

open access: yes, 2014
Recently, dynamical phase transitions have been identified based on the non-analytic behavior of the Loschmidt echo in the thermodynamic limit [Heyl et al., Phys.~Rev.~Lett.~{\bf 110}, 135704 (2013)]. By introducing conditional probability amplitudes, we
Canovi, Elena   +2 more
core   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

Impurity Quantum Phase Transitions

open access: yes, 2004
We review recent work on continuous quantum phase transitions in impurity models, both with fermionic and bosonic baths - these transitions are interesting realizations of boundary critical phenomena at zero temperature.
Affleck I   +6 more
core   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation 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

Semiconductor–Metal Phase Transitions

open access: yesУспехи физики металлов, 2004
The changes of structural, mechanical, thermal, and electrical properties of semiconductors and alloys on their base are considered as a result of phase or structural transformations.
Yu. M. Taran, V. Z. Kutsova, O. A. Nosko
doaj   +1 more source

Compression-Induced Phase Transitions of Bicalutamide

open access: yesPharmaceutics, 2020
The formation of solid dispersions with the amorphous drug dispersed in the polymeric matrix improves the dissolution characteristics of poorly soluble drugs.
Joanna Szafraniec-Szczęsny   +11 more
doaj   +1 more source

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