Inelastic electron tunneling spectroscopy has been used to probe the irreversible chemisorption of C6H 50H and 1,4-C6H 4(0H)2 on a thin amorphous film of Al20 3• This spectroscopy yields a representation of the vibronic excitations of the chemical bonds in the adspecies, i.e., the tunneling spectra are analogous to ir spectra. The C6H 50H is found to adsorb predominately as C6H 50with a small a...

in this study, a new and valuable forage source was introduced with combination and silage of alfa-alfa, halocnemum and mesquite via chemical, gas production and in vivo methods. to perform this research, first the right amounts of the species were collected. then they were cut by chopper to the dimensions of less than 5 cm. then, halocnemum, mesquite fruit, alfalfa and molasses were silaged ac...

OBJECTIVES The intracellular antibiotic efficiency of gentamicin-loaded microspheres in the context of Brucella-infected murine monocytes was examined in vitro with a view to developing improved therapies for the treatment of brucellosis. METHODS Biodegradable microspheres made of end-group capped and uncapped poly(lactide-co-glycolide) 50:50 (PLGA 50:50 and PLGA 50:50H) and containing gentam...

In this work, mechanical alloying was employed to produce Ti-50Al and Ti-45Al-5Cr (at%) alloys. Alloying was performed in a planetary mill and the alloying time varying from 5 to 70h. Characterization of the powder mixture was performed by X-ray diffraction (XRD), SEM analyses and DTA test, during mechanical alloying and after annealing at 1100°c in vacuum oven. The results showed, after 50h of...

Anti-CD9 monoclonal antibodies (MoAbs) are reported to activate human platelets through stimulation of the Fc gamma II receptor. We show here that nonstimulatory F(ab')2 fragments of the anti-CD9 MoAb 50H.19 induce dense-granule release and dose-dependent platelet aggregation when attached to polystyrene latex beads. Cross-linking F(ab')2 fragments of MoAb 50H.19 by F(ab')2 fragments of goat an...

PURPOSE Probiotics are microorganisms, which show beneficial health effects on hosts once consumed in sufficient amounts. Among probiotic bacteria, the bioactive compounds from lactic acid bacteria (LAB) group can be utilized as preservative agents. LAB group can be isolated and characterized from traditional dairy sources. This study aimed to isolate, identify, and biologically characterize pr...

Cosmological simulations of magnetic fields in galaxy clusters show that remarkable agreement between simulations and observations of Faraday rotation and radio haloes can be achieved assuming that seed fields of ∼ 10−9 G were present at redshifts ∼ 15–20. The structure of the seed field is irrelevant for the final intracluster field. On average, the field grows exponentially with decreasing cl...

It is shown that the standard cosmological model predicts ab initio generation of large-scale but very small-amplitude cosmic magnetic fields at the epoch of recombination of the primeval plasma. Matter velocities dominated by coherent flows on a scale L ≈ 50h(1 + z) Mpc lead to a dipole of radiation flux in the frame of the moving matter. Thomson scattering of the radiation differentially acce...

The development of technologies based on the use of sulfate-reducing bacteria (SRB) to treat sulfate contaminated wastewaters has produced a cost-effective route to precipitate metals. In this work the effects of cadmium and manganese in the SRB growth rates were assessed. It was observed that duplication time is 50h in the presence of cadmium and 6h in the presence of manganese, thus showing t...