نتایج جستجو برای: factor and r
تعداد نتایج: 16998628 فیلتر نتایج به سال:
An increased frequency of rough cultures with associated reductions in mouse virulence was detected after R-factor transmission into strains of Salmonella choleraesuis var. kunzendorf and S. typhimurium. All rough strains tested, with or without R factors, conferred protective immunity against challenge with homologous or heterologous species of Salmonella, some of which contained R factors. Al...
R factor mediated transfer of antibiotic resistance between Enterobacteriaceae has been reported to occur in the mammalian gastrointestinal tract (Kasuya, I 964; Reed, Sieckmann & Georgi, 1969; Guinie, 1970; Wiedemann, Knothe & Doll, 1970) where conditions are mainly anaerobic as demonstrated by the abundance of obligate anaerobic bacteria such as Bacteroides species (Moore, Cat0 & Holdeman, 19...
Background & Aim: The American Psychiatrists Association has inserted Internet gaming disorder into Section III of DSM-V. The IGD-20 test has been introduced as a tool for investigating IGD. This study aims to assess the validity of the Persian version of IGD-20 test. Methods: In this methodological study, 394 undergraduate students of Tabriz University of Medical Sciences were included using ...
introduction: inadequate sleep hygiene may result in difficulties in daily functioning; therefore, reliable scales are important to measure sleep hygiene. the purpose of this study was to assess the psychometric properties of the persian version of sleep hygiene index (shi) in the male population. methods: in this study, 787 men, who were selected by cluster random sampling, filled out the shi,...
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