Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Paulo R. A. Carvalho"'
Publikováno v:
Jornal de Pediatria, Vol 86, Iss 6, Pp 525-530 (2010)
OBJETIVO: Avaliar a utilização de profilaxia para úlcera de estresse (UE), em pacientes internados, de cinco unidades de terapia intensiva pediátrica (UTIP) de Porto Alegre (RS). MÉTODOS: Estudo multicêntrico, prospectivo, transversal, observac
Externí odkaz:
https://doaj.org/article/e0b3de9f64214fe1999aa62ad2ed090d
Publikováno v:
Jornal de Pediatria, Vol 83, Iss 6, Pp 505-511 (2007)
OBJETIVO: Avaliar o impacto da internação sobre os desempenhos cognitivo e global em crianças admitidas na unidade de tratamento intensivo (UTI) pediátrica do Hospital de Clínicas de Porto Alegre. MÉTODOS: Estudo longitudinal, observacional de
Externí odkaz:
https://doaj.org/article/9de8aeee1c17456b81b22969954d3523
Autor:
Paulo R. A. Carvalho, Letícia Feldens, Elizabeth E. Seitz, Taís S. Rocha, Maria A. Soledade, Eliana A. Trotta
Publikováno v:
Jornal de Pediatria, Vol 81, Iss 2, Pp 143-148 (2005)
OBJETIVO: Avaliar a prevalência das síndromes inflamatórias sistêmicas na admissão em uma unidade de terapia intensiva (UTI) pediátrica universitária terciária e os respectivos tempo de permanência, probabilidade de morte e taxa de mortalida
Externí odkaz:
https://doaj.org/article/bc3ea018ae9d42608d189195191fab7c
Publikováno v:
International Journal of Modern Physics D. 31
In this work, we study quantum metrology protocol in the context of relativistic quantum fields in curved spacetimes. In particular, we restrict our attention to the isotropic and anisotropic models. We investigate how the oscillatory anisotropy affe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cad57c521f2febcf03cb4b3b8173f1a
https://doi.org/10.1142/s0218271822500766
https://doi.org/10.1142/s0218271822500766
Publikováno v:
International Journal of Modern Physics D. 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f81f57e6305ccee583da5cce4ba804b8
https://doi.org/10.1142/s0218271821920012
https://doi.org/10.1142/s0218271821920012
Autor:
H. A. S. Costa, Paulo R. S. Carvalho
In this Letter we compute analytically the effect of conformal symmetry on the radiative corrections to the amplitude ratios for O($N$) $\lambda\phi^{4}$ massless scalar field theories in curved spacetime for probing the two-scale-factor universality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a67d8c9330f77c34be615b4eee24788
http://arxiv.org/abs/2010.11104
http://arxiv.org/abs/2010.11104
Publikováno v:
Annals of Physics. 387:290-298
In this work, we compute analytically the infrared divergences of massless O($N$) self-interacting scalar field theories with Lorentz violation, which are exact in the Lorentz-violating $K_{\mu\nu}$ coefficients, for evaluating the corresponding next
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d663bdbcaf3c79e3796594f356c4a89a
https://doi.org/10.1016/j.aop.2017.10.016
https://doi.org/10.1016/j.aop.2017.10.016
Publikováno v:
Physics Letters A. 409:127483
We introduce a simple and original method that allows to investigate the effect of acceleration on a typical single particle interferometer. For simplicity, we present our method in the language of quantum gate operation. We show that the interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ae4ef43d64b85bcdb3a9419819a19b8
https://doi.org/10.1016/j.physleta.2021.127483
https://doi.org/10.1016/j.physleta.2021.127483
Autor:
Paulo R. S. Carvalho, H. A. S. Costa
In this paper we investigate analytically the conformal symmetry influence on the next-to-leading order radiative quantum corrections to critical exponents for massless O($N$) $\lambda\phi^{4}$ scalar field theories in curved spacetime. We renormaliz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::908a33e256077251abadaca7d4c51181
http://arxiv.org/abs/1908.02272
http://arxiv.org/abs/1908.02272
Autor:
Paulo R. S. Carvalho
Publikováno v:
Physical Review
We probe the universality hypothesis by analytically computing, at least, the two-loop corrections to the critical exponents for $q$-deformed O($N$) self-interacting $\lambda\phi^{4}$ scalar field theories through six distinct and independent field-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b59159e434e9aae337eaa2ea54e8c9c7
https://doi.org/10.1103/physrevd.97.105006
https://doi.org/10.1103/physrevd.97.105006