Zobrazeno 1 - 10
of 100
pro vyhledávání: '"L. Cruzeiro-Hansson"'
Autor:
Paulo Silva, L. Cruzeiro-Hansson
Publikováno v:
Physics Letters A. 315:447-451
The Davydov model for energy transfer in proteins is extended to describe situations in which the excitation number is not conserved. While the full state of the system consists of an infinite superposition of states with all possible excitation numb
Publikováno v:
Synthetic Metals. 109:113-116
The dynamics of an autolocalized quasiparticle in a discrete lattice is investigated analytically and numerically, taking into account the quasiparticle interaction with acoustic phonons. The dependence of the parameters of a soliton-like polaron on
Publikováno v:
Physics Letters A. 266:160-166
We study the influence of the phonon spectrum on polaron formation and show that three self-trapping regimes can occur. If the lattice and the electron–lattice Hamiltonians are dominated by the same type of phonons, the self-trapping transition is
Publikováno v:
Journal of Biological Physics. 24:223-232
The influence of electromagnetic radiation (EMR) on charge and energy transport processes in biological systems is studied in the light of the soliton model. It is shown that in the spectrum of biological effects of EMR there are two frequency resona
Autor:
L. Cruzeiro-Hansson
Publikováno v:
Physics Letters A. 249:465-473
The Davydov-Scott model, which describes the states of amide I excitations in a lattice, is extended to include distance dependent nonlocal hopping and/or a nonlinear lattice. Minimum energy one quantum states are determined by numerical minimization
Publikováno v:
Journal of Biological Physics. 24:19-40
The soliton model of charge and energy transport in biological macromolecules is used to suggest one of the possible mechanisms for electromagnetic radiation influence on biological systems. The influence of the electromagnetic field (EMF) on molecul
Autor:
Shozo Takeno, L. Cruzeiro-Hansson
Publikováno v:
Physical Review E. 56:894-906
The need for a mechanism for energy transfer in proteins, such as the Davydov model, is emphasized. Here we concentrate on the finite-temperature properties of the Davydov model in three regimes: the quantum regime, in which both the excitation and t
Autor:
L. Cruzeiro-Hansson
Publikováno v:
Journal of the Chemical Society, Faraday Transactions. 93:2419-2425
Three sequences with 60 base pairs each are studied, using an all-atom force field. One is a 60 base pair A-tract, the second has 30 A–T steps and the third is equal to the first, except in base pairs 11–16, where a TATA box is inserted. The firs
Publikováno v:
Journal of biological physics. 24(2-4)
The influence of electromagnetic radiation (EMR) on charge and energy transport processes in biological systems is studied in the light of the soliton model. It is shown that in the spectrum of biological effects of EMR there are two frequency resona
Publikováno v:
Journal of biological physics. 24(1)
The soliton model of charge and energy transport in biological macromolecules is used to suggest one of the possible mechanisms for electromagnetic radiation influence on biological systems. The influence of the electromagnetic field (EMF) on molecul