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pro vyhledávání: '"Neves R"'
In this work, we investigate the existence of wormholes within the framework of Loop Quantum Cosmology, considering isotropic dark matter as the matter source. We examine three distinct density profiles and employ modified field equations along with
Externí odkaz:
http://arxiv.org/abs/2411.12063
In this paper, we obtain novel traversable, static, and spherically symmetric wormhole solutions, derived from the effective energy density and isotropic pressure resulting from the Casimir effect, corrected by the Generalized Uncertainty Principle (
Externí odkaz:
http://arxiv.org/abs/2406.08250
This study investigates the potential of the Sagnac Effect for detecting dark matter in the Solar System, particularly within the Sun. Originating from the relative delay and interference of light beams traveling in opposite directions on rotating pl
Externí odkaz:
http://arxiv.org/abs/2403.04992
Autor:
Alves, J. R., Angel, L., Guedes, L., Neves, R. M. P., Queiroz, F. S., da Silva, D. R., Silva, R., Villamizar, Y.
As electromagnetic showers may alter the abundance of Helium, Lithium, and Deuterium, we can place severe constraints on the lifetime and amount of electromagnetic energy injected by long-lived particles. Considering up-to-date measurements of the li
Externí odkaz:
http://arxiv.org/abs/2311.07688
Publikováno v:
Cerâmica, Vol 49, Iss 312, Pp 237-244 (2003)
A região do Rio Capim (Nordeste do Estado do Pará), destaca-se nacionalmente por suas grandes reservas de caulim para cobertura de papel. O minério extraído está localizado, em média, a 20 m de profundidade, recoberto por sedimentos argilo-aren
Externí odkaz:
https://doaj.org/article/2c49cee3e7a64c20ab279673e23b0ab0
Publikováno v:
Brazilian Journal of Medical and Biological Research, Vol 33, Iss 2, Pp 211-216 (2000)
To determine the influence of residual ß-cell function on retinopathy and microalbuminuria we measured basal C-peptide in 50 type 1 diabetic outpatients aged 24.96 ± 7.14 years, with a duration of diabetes of 9.1 ± 6.2 years. Forty-three patients
Externí odkaz:
https://doaj.org/article/2d8765e732a54e4487f679bd3f7b8f0c
Publikováno v:
JCAP07(2022)024
We investigate the early universe evolution in the context of brane inflation driven by a supergravity-inspired $\arctan$ potential. We performed a slow-roll and a semi-analytical reheating analyses and obtained constraints on the inflationary parame
Externí odkaz:
http://arxiv.org/abs/2011.05264
Publikováno v:
Eur. Phys. J. Plus (2021) 136:84
The first inflationary model conceived was the one proposed by Starobinsky which includes an additional term quadratic in the Ricci-scalar R in the Einstein-Hilbert action. The model is now considered a target for several future cosmic microwave back
Externí odkaz:
http://arxiv.org/abs/2007.09211
Publikováno v:
Phys. Lett. B 810 (2020) 135813
We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of $N$ parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergrav
Externí odkaz:
http://arxiv.org/abs/2003.02028
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