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Perturbation theory for short-range weakly-attractive potentials in one dimension
(Academic Press Inc Elsevier Science, 2017-03)
We have obtained the perturbative expressions up to sixth order for the energy of the bound state in a one dimensional, arbitrarily weak, short range finite well, applying a method originally developed by Gat and Rosenstein ...
Big brake singularity is accommodated as an exotic quintessence field
(American Physical Society, 2015-08)
We describe a big brake singularity in terms of a modified Chaplygin gas equation of state $p=(ga_{m}-1)ho+alga_{m}ho^{-n}$, accommodate this late-time event as an exotic quintessence model obtained from an energy-momentum ...
A note on perturbations of fusion frames
(Academic Press Inc Elsevier Science, 2018-05)
In this work, we consider some relationships between a closed range operator T and a fusion frame W=(Wi,wi)i∈I for a Hilbert space H that provides that the sequence (T(Wi)‾,vi)i∈I is a fusion frame sequence for H, if we ...
Continuity results with respect to domain perturbation for the fractional p-Laplacian
(Pergamon-Elsevier Science Ltd, 2018-01)
In this paper, we give sufficient conditions on the approximating domains in order to obtain the continuity of solutions for the fractional p-Laplacian. These conditions are given in terms of the fractional capacity of the ...
Lennard-Jones viscosities in wide ranges of temperature and density: Fast calculations using a steady-state periodic perturbation method
(Springer/Plenum Publishers, 2004-11)
A method for fast calculation of viscosity from molecular dynamics simulation is revisited. The method consists of using a steady-state periodic perturbation. A methodology to choose the amplitude of the external perturbation, ...
Effects of environmental perturbations during postnatal development on the phenotypic integration of the skull
(Veterinary and Human Toxicology, 2011-12)
Integration and modularity are fundamental determinants of how natural selection effects evolutionary change in complex multivariate traits. Interest in the study of the specific developmental basis of integration through ...
Loschmidt echo and the local density of states
(American Physical Society, 2009-10)
Loschmidt echo (LE) is a measure of reversibility and sensitivity to perturbations of quantum evolutions. For weak perturbations its decay rate is given by the width of the local density of states (LDOS). When the perturbation ...
Effect of N-terminal acetylation on lytic activity and lipid-packing perturbation induced in model membranes by a mastoparan-like peptide
(Elsevier Science, 2018-03)
L1A (IDGLKAIWKKVADLLKNT-NH2) is a peptide that displays a selective antibacterial activity to Gram-negative bacteria without being hemolytic. Its lytic activity in anionic lipid vesicles was strongly enhanced when its ...