Recent study of gamma rays originating from the region of galactic centre has confirmed an anomalous γ-ray excess within the energy range 1-3 GeV. This can be explained as the consequence of pair annihilation of a 31-40 GeV dark matter into bb̄ with thermal annihilation cross-section σv ∼ 1.4 − 2.0 × 10−26 cm/s. In this work we revisit the Inert Doublet Model (IDM) in order to explain this gamma...

In this study, the mobility of nanoparticles in mucus and similar hydrogels as model systems was assessed to elucidate the link between microscopic diffusion behavior and macroscopic penetration of such gels. Differences in particle adhesion to mucus components were strongly dependent on particle coating. Particles coated with 2 kDa PEG exhibited a decreased adhesion to mucus components, wherea...

OBJECTIVE. Specification of appropriate personal protective equipment for respiratory protection against influenza is somewhat controversial. In a clinical environment, N95 filtering facepiece respirators (FFRs) are often recommended for respiratory protection against infectious aerosols. This study evaluates the ability of N95 FFRs to capture viable H1N1 influenza aerosols. METHODs. Five N95 F...

Synthesis of nanomaterials by a simple, low cost and in high yield has been a great challenge since the very early development of nanoscience. Various bottom and top down approaches have been developed so far, for the commercial production of nanomaterials. Among all top down approaches, high energy ball milling, has been widely exploited for the synthesis of various nanomaterials, nanograins, ...

A systematic study concerning the immobilisation onto magnetic nanoparticles of three useful classes of chiral organocatalyst which rely on a confluence of weak, easily perturbed van der Waals and hydrogen bonding interactions to promote enantioselective reactions has been undertaken for the first time. The catalysts were evaluated in three different synthetically useful reaction classes: the k...

We study models with several $SU(2)$ scalar doublets where the inert have a nonminimal coupling to gravity and play role of inflaton. allow for this be complex, thereby introducing $CP$ violation---a necessary source baryon asymmetry---in Higgs-inflaton couplings. investigate inflationary dynamics model discuss how violation is imprinted on particle asymmetries after inflation in hot big bang u...

The Marcus-Lushnikov process is a finite stochastic particle system in which each particle is entirely characterized by its mass. Each pair of particles with masses x and y merges into a single particle at a given rate K(x, y). We consider a strongly gelling kernel behaving as K(x, y) = xαy+ xyα for some α ∈ (0, 1]. In such a case, it is well-known that gelation occurs, that is, giant particles...