نتایج جستجو برای: 2006 using specific primers fsphrfsphf for these forma specialis
تعداد نتایج: 12044096 فیلتر نتایج به سال:
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
Background and purpose: Polymerase chain reaction (PÇR) is a rather quick and accurate method employed for gene detection and isolation. Primer designing is an important issue in this technique and plays a critical role in considering both the genome properties and cloning of the isolated genes. Streptomycin antibiotic is produced by Streptomyces griseus using str gene cluster with more than 25...
Background and Objectives: Salmonella typhi, Bacillus anthracis, and Yersinia pestis are potent human pathogenic bacteria that cause typhoid fever, anthrax, and plague,respectively. The classic microbiological methods for detection and identification of these agents are laborious and time consuming.Therefore, developing an accurate method for rapid detection of these potent human pathogens is i...
the application of e-learning systems - as one of the solutions to the issue of anywhere and anytime learning – is increasingly spreading in the area of education. content management - one of the most important parts of any e-learning system- is in the concern of tutors and teachers through which they can obtain means and paths to achieve the goals of the course and learning objectives. e-learn...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
objective: utility of pcr-rflp and species-specific pcr as novel and fast methods for identification and discrimination of causative agents of relapsing fever, borrelia persica and b. microtii in infected blood were investigated. materials and methods: genomic dna of b.persica and b.microtii species were extracted from the highly infected blood samples. two fragments of glpq and 16srdna genes ...
beet necrotic yellow vein benivirus (bnyvv) as one of the most important virues of sugar beet is the causal agent of rhizomania. bnyvv, as a type member of genus benyvirus has four types a, b, p and j, that are restricted to specific geographic areas. types a and b are similar in pathogenicity, but p and j types that have rna5 are more aggressive. these types cannot be distinguished serological...
Panax ginseng is a valuable medicinal plant which affected by many diseases during its long cultivation period. Ginseng root rot, caused Fusarium oxysporum, has become severe in China. This soilborne pathogen comprises formae speciales based on host specificity. Ten representative isolates from diseased rot showed pathogenicity ginseng. To identify the forma specialis of F. oxysporum strains, r...
nanotechnology is a general term which is related with field of all advanced science term that generally predicates with all modern technologies which consider nanoscales. improvement in the quality of products by adding some nanoparticles and study of their behavior in the presence of these nanoparticles have been obtained in many researches. on the other hand numerous demands for sowing ...
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