نتایج جستجو برای: h formation
تعداد نتایج: 1023091 فیلتر نتایج به سال:
During the epoch of first star formation, molecular hydrogen (H2) generated via associative detachment (AD) of H- and H is believed to have been the main coolant of primordial gas for temperatures below 10(4) kelvin. The uncertainty in the cross section for this reaction has limited our understanding of protogalaxy formation during this epoch and of the characteristic masses and cooling times f...
Fasciolosis is a cosmopolitan parasitic disease with considerable economic and public health importance. Fasciola hepaticais the major cause of fasciolosis in man and domestic animals. Although remarkable research works have been done around the optimum temperature and time required for miracidial development, little is known aboutthe exact susceptibility of Fasciola hepaticaeggs to high temper...
In the recent three decades, Ca-Si-based ceramics have received great attention as an appropriate candidate for tissue engineering applications due to their remarkable bioactivity, biocompatibility, and good bone formation ability. Hardystonite is currently recognized as a bioactive and biocompatible bio-ceramic material for a range of medical applications. In the present study, for the first t...
dans le monde où l’homme est l’élément le plus important de la vie, la formation de nouvelles générations a une importance particulière. en rédigeant emile, jean jacques rousseau, exerce une influence extraordinaire sur la vie humaine et mène à réfléchir sur la question de l’éducation en tant qu’un art. ce penseur du xviiie siècle, grâce à son élève imaginaire, emile, présente son idéal pédagog...
The human gastric pathogen Helicobacter pylori forms biofilms in vitro and in vivo. The purpose of this study was to evaluate the effects of H. pylori biofilm formation in vitro on clarithromycin (CLR) susceptibility. CLR susceptibility of H. pylori intermediate (2-day) and mature (3-day) biofilms on glass coverslips was determined at concentrations from 0.03 to 0.5 µg/ml. H. pylori biofilm bio...
In this report, the degradation of 1-Naphthol was studied under xenon irradiation for 2 h using WO3-rGO nanocomposite as photocatalyst. Raman spectroscopy and scanning electron microscopy demonstrated nanocomposite formation. Gas chromatography-mass spectrometry (GC-MS) technique which was utilized to analyze the degradation products, confirmed the formation of salicylic acid as a...
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