Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Coutinho, F. A. B."'
Autor:
Coutinho, F. A. B., Wreszinski, W. F.
Publikováno v:
Braz. J. Phys. vol. 46, 462-470 (2016)
A theorem of Hegerfeldt (Instantaneous spreading and Einstein causality in quantum theory, Ann. Phys. Leipzig vol. 7, 716-725 (1998)) establishes, for a class of quantum systems, a dichotomy between those which are permanently localized in a bounded
Externí odkaz:
http://arxiv.org/abs/1607.02961
Publikováno v:
Physical Review E 67, 051907 (2003)
In this paper, we analyze the temporal evolution of the age-dependent force of infection and incidence of rubella, after the introduction of a very specific vaccination programme in a previously nonvaccinated population where rubella was in endemic s
Externí odkaz:
http://arxiv.org/abs/0906.0917
Autor:
Coutinho, F. A. B., Amaku, M.
Publikováno v:
Eur. J. Phys. 30 (2009) L51-L54. http://www.iop.org/EJ/abstract/0143-0807/30/4/L02
A prescription invented a long time ago by Case and Danilov is used to get the wave function of point interactions in two and three dimensions.
Comment: 6 pages
Comment: 6 pages
Externí odkaz:
http://arxiv.org/abs/0905.4873
A simple deterministic model is proposed to represent the basic aspects concerning the effects of different antiretroviral treatment schedules on HIV incidence and prevalence of affected populations. The model mimics current treatment guidelines appl
Externí odkaz:
http://arxiv.org/abs/q-bio/0501009
A non-autonomous system is proposed to model the seasonal pattern of dengue fever. We found that an approximate threshold condition for infection persistence describes all possible behavior of the system. As far as we know, the kind of analysis here
Externí odkaz:
http://arxiv.org/abs/nlin/0501013
An non-autonomous system is proposed to model the seasonal pattern of dengue fever. We found that an approximate threshold condition for infection persistence describes all possible behavior of the system. As far as we know, the kind of analysis here
Externí odkaz:
http://arxiv.org/abs/q-bio/0501003
Publikováno v:
Can.J.Phys. 80 (2002) 837-845
Dirac's hole theory and quantum field theory are usually considered equivalent to each other. For models of a certain type, however, the equivalence may not hold as we discuss in this Letter. This problem is closely related to the validity of the Pau
Externí odkaz:
http://arxiv.org/abs/quant-ph/0010039
Publikováno v:
J.Phys.A32:4931-4942,1999
We consider a four-parameter family of point interactions in one dimension. This family is a generalization of the usual $\delta$-function potential. We examine a system consisting of many particles of equal masses that are interacting pairwise throu
Externí odkaz:
http://arxiv.org/abs/quant-ph/9903098
Autor:
MASSAD, E., BURATTINI, M. NASCIMENTO, KHAN, K., STRUCHINER, C. J., COUTINHO, F. A. B., WILDER-SMITH, A.
Publikováno v:
Epidemiology and Infection, 2017 Aug 01. 145(11), 2303-2312.
Externí odkaz:
https://www.jstor.org/stable/26521317
Regarding the Pauli principle in quantum field theory and in many-body quantum mechanics, Feynman advocated that Pauli's exclusion principle can be completely ignored in intermediate states of perturbation theory. He observed that all virtual process
Externí odkaz:
http://arxiv.org/abs/quant-ph/9812073