Plane waves in noncommutative classical electrodynamics (NCED) have a peculiar dispersion relation. We investigate the kinematical conditions on this deformed ”mass shell” which come from ultra high energy gamma rays and discuss noncommutative dynamical effects on the gamma absorption by the infrared background and on the intrinsic spectrum. Finally we note that in NCED there is a strong correl...

The immunological properties of the surface layers of Paracentrotus lividus eggs have been studied further by using ferritin-labelled antibody to localise specific antigenic sites. In order to detect a wider spectrum of antigenic determinants, several antisera against egg and jelly substance have been employed in combination with absorption procedures using lyophilised antigen. This use of abso...

In this paper first we introduce the notion of weak $Gamma$-(semi)hypergroups, next some classes of equivalence relations which are called good regular and strongly good regular relations are defined.  Then we investigate some properties of this kind of relations on weak $Gamma$-(semi)hypergroups.

Aims. Relations connecting Gamma Ray Burst quantities can be used to constrain cosmographic parameters of the Hubble law at medium-high redshifts. Methods. We consider a sample of 27 Gamma Ray Bursts to construct the luminosity distance-redshift relation and derive the values of the parameters q 0 , j 0 and s 0. The analysis is compared with other methods present in literature. Results. Gamma R...

Gamma oscillations in cortex have been extensively studied with relation to behavior in both humans and animal models; however, their computational role in the processing of behaviorally relevant signals is still not clear. One oft-overlooked characteristic of gamma oscillations is their spatial distribution over the cortical space and the computational consequences of such an organization. Her...

The increased interest in gamma oscillations, now widely regarded as functionally relevant signals of the brain, underlines the importance of the concept of event-related oscillations for bridging the gap between single neurons and neural assemblies. Taking this concept further, we review experiments showing that oscillatory phenomena such as alpha, theta, and delta responses to events are, jus...

We calibrate the distance and reconstruct Hubble diagram of gamma-ray bursts (GRBs) using deep learning. construct an artificial neural network, which combines recurrent network Bayesian train Pantheon compilation type-Ia supernovae. The trained is used to 174 GRBs based on Combo-relation. verify that there no evident redshift evolution Combo-relation, obtain slope intercept parameters, $\gamma...

In this work, we obtained an analytical relation for the susceptibility of square lattice Ising model. Our investigation is based on average magnetization interrelation which was recently by us. To proceed further, have to make a mathematical conjecture about three-site correlation function appearing in interrelation. We presented conjectured form three spin with relation, $$\langle \sigma _{1}...

The possibility of using Brazilian stones in gamma high-dose dosimetry was investigated at IPEN using the optically stimulated luminescence (OSL) technique. Agate samples were studied in relation to their OSL dosimetric properties, in this work. The samples were irradiated at a Gamma-Cell system (Co). The calibration curves show a sublinear behavior between 50 Gy and 300 kGy, and the lower dete...