Results 21 to 30 of about 23,671 (302)

Perturbations in Bianchi Type-I spacetimes with varying Lambda, G

open access: yes, 2023
12 pages ...
Alfedeel, Alnadhief H. A.   +2 more
openaire   +2 more sources

Bianchi type-I cosmological models with variable G and Λ-term in general relativity [PDF]

open access: yesAstrophysics and Space Science, 2008
Einstein’s field equations with variable gravitational and cosmological “constant” are considered in presence of perfect fluid for Bianchi type-I space-time. Consequences of the four cases of the phenomenological decay of Λ have been discussed which are consistent with observations.
J. P. Singh   +2 more
openaire   +1 more source

The CX3C-Chemokine Fractalkine (CX3CL1) is Detectable in Serum of Patients Affected by the Inflammatory Diseases Allergic Rhinitis and/or Asthma

open access: yesEuropean Journal of Inflammation, 2005
Fractalkine (FKN) is a chemokine able to mediate the initial capture, firm adhesion, and activation of circulating leukocytes. Many tissues express FKN mRNA and FKN expression is increased during inflammatory conditions.
P.L. Minciullo   +9 more
doaj   +1 more source

Modern aspects of convexity and the interplay between geometry and analysis [PDF]

open access: yes, 2023
In this thesis, we explore the interactions between geometry and analysis in the world of convex geometry. In particular, we mix techniques from the world of convex and functional analysis together with some from non-smooth differential geometry, finding
ULIVELLI, JACOPO
core  

First Report of a Severe Outbreak of Aujeszky’s Disease in Cattle in Sicily (Italy)

open access: yesPathogens, 2020
Aujeszky’s disease in cattle is caused by Suid herpes virus 1. The natural infection has been reported worldwide in bovine species and it is related to direct and indirect contact with infected pigs, which represent the main reservoir of the virus. Here,
Flavia Pruiti Ciarello   +7 more
doaj   +1 more source

Holographic dark energy in Gauss-Bonnet gravity with Granda-Oliveros cut-off

open access: yesNuclear Physics B, 2022
In this paper, we have studied a model of holographic dark energy (HDE) with a homogeneous and anisotropic Bianchi type-I Universe in the framework of Gauss-Bonnet (GB) gravity or f(G) gravity.
M. Koussour   +3 more
doaj   +1 more source

A cosmological model with time dependent Λ, G and viscous fluid in general relativity

open access: yesFrontiers in Astronomy and Space Sciences, 2022
In this paper, we investigate Bianchi type − V cosmological models with bulk viscous fluid and time varying cosmological Λ and Newtonian G parameters.
Rishi Kumar Tiwari   +6 more
doaj   +1 more source

Effective Classification using a small Training Set based on Discretization and Statistical Analysis [PDF]

open access: yes, 2015
This work deals with the problem of producing a fast and accurate data classification, learning it from a possibly small set of records that are already classified. The proposed approach is based on the framework of the so-called Logical Analysis of Data
G. Bianchi, BRUNI, Renato
core   +1 more source

Rapid communication. New incursions of West Nile virus lineage 2 in Italy in 2013: the value of the entomological surveillance as early warning system [PDF]

open access: yesVeterinaria Italiana, 2013
West Nile virus (WNV) is one of the most serious public health threats that Europe and the Mediterranean countries are currently facing. In Italy, WNV emerged in 1998 and has been circulating since 2008.
Mattia Calzolari   +17 more
doaj   +1 more source

Anisotropic Spacetimes in f(G)-gravity: Bianchi I, Bianchi III and Kantowski-Sachs Cosmologies

open access: yesGeneral Relativity and Gravitation
15 pages, 8 Figures, to appear in Gen.
Bogadi, R.   +5 more
openaire   +2 more sources

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