نتایج جستجو برای: starbro strain
تعداد نتایج: 218474 فیلتر نتایج به سال:
An attempt was made to isolate bacterial strains capable of removing strontium biologically. In this study ten different water samples collected from Neydasht spring in the north of Iran and then the bacterial species were isolated from the water samples. The initial screening of a total of 50 bacterial isolates resulted in selection of one strain. The isolated strain showed a maximum adsorptio...
Genetic typing methods of T. gondii strains have been extensively perfected in recent years. From a technical point of view, many tools usable for genetic studied on single-copy loci have been used: RFLP, PCR-RFLP, sequencing, RAPD-PCR and isoenzyme analysis. We described the cloning and sequence analysis of the gene which encodes the major surface antigen (SAG1 or P30) of T. gondii. SAG1 is ...
The purpose of this investigation is to examine the viability of using the sheet metal for forming applications. Forming limit diagram (FLD) composed of negative and positive minor strain with respect to major strain which occurs at directional zero strain with the critical thickness of sheet metal. The negative minor strain region of FLD is predicted by localized necking. However there is no d...
The plastic behavior of materials depends on their strain rate sensitivity. The main objective of this paper is the analysis of the effect of strain rate sensitivity on plastic behavior of cylindrical shells under internal pressure loading and hence a large number empirical tests have been conducted on aluminum cylindrical shells. We have also manufactured and used a hydrostatic test machine to...
background: workplace stress is known to be related with many behavioral and disease outcomes. however, little is known about its prospective relationship with measures of cognitive decline. objective: to investigate the association of job strain, psychological demands and job control on cognitive decline. methods: participants from framingham offspring cohort (n=1429), were assessed on job str...
باکتری ها کارخانه های بی همتای بیولوژیک در تولید محصولات زیست فناوری هستند ویژگی-هایی نظیر تحمل شرایط خاص رشد و تولید آنزیم های مختلف، باکتریها را برای بهره برداری مورد توجه قرار داده است. عده ای از باکتری ها واجد عوامل ژنتیکی با قابلیت جابه جایی هستند. نظیر اینترون های گروه ii که سه آنزیم با ارزش وارونوشتاز , ( reverse transcriptase) اندونوکلئاز ,(endonuclease) مچوراز (maturase) رارمز می کنن...
با توجه به اهمیت بیماری بلاست مرکبات و خسارتی که وارد می کند داشتن اطلاعات دقیق درباره چرخه زندگی و همچنین دامنه میزبانی عوامل مولد بیماری که جدیه هایی از pseudomonas viridiflava و pseuodomonas syringae pv.syringae هستند اهمیت دارد.به منظور بررسی تنوع گونه ای و دامنه میزبانی عوامل بیماری حدود 40 جدایه باکتری از گیاهان اسفناج ، ختمی و مرکبات در سال های 1389 و1390 جداسازی شدند.تنوع جدایه ها با مق...
To evaluate the effect of plant growth promoting bacteria (PGPB) on soil physical and chemical indices, yield and its components of two rice cultivars, an experiment was arranged in Rice Researches Institute of Guilan Province during 2009. The experiment design consisted of four randomized complete blocks in a factorial arrangement having 16 treatments in every block. In this research, two fact...
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