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تعداد نتایج: 719719 فیلتر نتایج به سال:
The micro and nano-structured amorphous carbon as p-type films prepared from natural palm oil precursor for heterojunction solar cell were presented. Field-emission scanning electron microscopy (FESEM) revealed the micro and nano structured films had particle size in the range of 382 nm to 689 nm and 28 to 34 nm, respectively. The energy-dispersive spectroscopy (EDS) showed the existing of carb...
Results: In the present study, a total of 145 gastritis students were recruited. The proportion of male and female gastritis students was 63.4% and 36.6% respectively. The prevalence of H. pylori infection among the study participants was 71.0 % while its prevalence among male and female participants was 68.5 % and 75.5 % respectively. Meanwhile, most of the study participants developed khat ch...
Rectal cancer is rare in developing countries, in contrast to the high incidence rates in Europe, North America, Australia and Japan. Significant differences also exist within continents (Curado et al., 2007). In Thailand, the estimated total of 4,789 new cases of rectal cancer in 1999 had a male : female ratio of 1.25:1. The annual agestandardized incidence rates of rectal cancer in Thailand w...
Background and Objective: Owing to the extended usage in the safekeeping of environments, the photocatalytic materials have been widely applied. The purpose of the present study was to investigate the photocatalytic activity of ZnO and SnO2 nanoparticles in removal of methyl orange from aqueous media. Materials and Methods: ZnO and SnO2 nanoparticles were synthesized through sol-gel and chem...
Background and Objective: Germ cell tumor (GCT) accounts for approximately 2-3% of all malignancies in children. In this respect, about 20% of patients with GCT are still resistant to therapy. Materials and Methods: The cross-sectional strategy of this survey was undertaken on 57 patients with germ cell ...
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