نتایج جستجو برای: with mic and mbc are 25
تعداد نتایج: 18540596 فیلتر نتایج به سال:
زمینه و هدف : گیاه باریجه دارای خواص دارویی و ضدمیکروبی است. این مطالعه به منظور تعیین اثر عصاره های آبی و الکی ریشه گیاه باریجه بر سودوموناس آئروژینوزا انجام شد. روش بررسی : در این مطالعه آزمایشگاهی گیاه باریجه در سایه خشک و عصاره های آبی و الکلی پودر ریشه باریجه به روش سوکسله تهیه شد. سپس اثر آن در رقت 0.1 با مقادیر مختلف روی سویه سودوموناس آئروژینوزا به روش های دیسک گذاری، چاهک و تعیین mic و...
this work is presented in five parts. in the first part preparation of the starting complex [pt(c^n)cl(dmso)], 1, in which c^n = n(1),c(2?)-chelated, deprotonated 2-phenylpyridine, and dmso = dimethylsulfoxide, and its reaction with 1 equiv of the biphosphine ligands bis(diphenylphosphino)amine, dppa, or bis(diphenylphosphino)methane, dppm, to give the complex [pt(c^n)cl(dppa)], 2, or [pt(c^n)c...
محلول کلوییدی نانو نقره به روش کاهش شیمیایی از واکنش نیترات نقره با سدیم بوروهیدرید در مجاورت تری سدیم سیترات و پلی وینیل پیرولیدون تهیه شده است. با استفاده از طیف uv و تصویر tem از نمونه تهیه شده، اندازه نانو نقره تعیین شد. خاصیت میکروب کشی نانو ذرات نقره به دو روش mic و mbc در مقابل باکتری های گرم منفی ( اشریشیاکلی و سودوموناس آئروژینوزا) و باکتری های گرم مثبت ( باسیلوس سوبتیلیس و استافیلوک...
The in vitro antibacterial and antibiofilm activity of chlorogenic acid against clinical isolates of Stenotrophomonas maltophilia was investigated through disk diffusion, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), time-kill and biofilm assays. A total of 9 clinical S. maltophilia isolates including one isolate resistant to trimethoprim/sulfamethoxazole (TM...
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
Metronidazole was found to be active against Bacteroides fragilis strains isolated from human lesions. The minimal inhibitory concentrations (MIC) were from 0.16 to 2.5 mug/ml and the minimal bactericidal concentrations (MBC) were from 0.16 to 2.5 mug/ml; usually the MIC and MBC figures were equivalent. These levels are easily attainable in the serum following normal therapeutic doses. The drug...
the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...
the concepts of similarity and dissimilarity have been the interest of many researchers. basically, in the studies the similarity between two objects or phenomena, has been discussed. in this thesis, we consider the case when the resemblance or similarity among three objects or phenomena of a set, 3-similarity in our terminology, is desired. later we will extend our definitions and propos...
The antimicrobial properties of silver and copper nanoparticles were investigated using Escherichia coli (four strains), Bacillus subtilis and Staphylococcus aureus (three strains). The average sizes of the silver and copper nanoparticles were 3 nm and 9 nm, respectively, as determined through transmission electron microscopy. Energy-dispersive X-ray spectra of silver and copper nanoparticles r...
muhammad ibn muhammad ibn numan, known as "shaykh mufid," one of the great imamiye theologians and jurists in the fourth and early fifth century , had comprehensive mastery of both rational and traditional topics and exerted his influence upon both his contemporary and future scholors. he is considered to be one of the top imamiye scholars who spent his lifetime teaching, learning and authorin...
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