نتایج جستجو برای: conventional products
تعداد نتایج: 541119 فیلتر نتایج به سال:
background: splicing by overlap extension (soe) pcr is used to create mutation in the coding sequence of an enzyme in order to study the role of specific residues in protein’s structure and function.objectives: we introduced a nested-soe-pcr (n –soe-pcr) in order to increase the specificity and generating mutations in a gene by soe-pcr. materials and methods: genomic dna from bacillus thermoca...
Improving cleaning and disinfection performance must be taken into account for prevention and control of infection. Health care settings are engaged in a battle against healthcare associated infection (HAIs). The importance of infection prevention and control is increasing due to rapidly developing strains of multi-drug resistant organisms (MDROs) that can result in serious illness and even dea...
this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...
Promote chemical technologies is an innovation that reduce or eliminate use or production of hazardous materials in the design, manufacture and use of chemical products. According to this law, reduce pollution at source is fundamentally different and more desirable than waste management and pollution control. Nowadays, this new approach known as green chemistry, which is: The design of chemical...
a powerful and convenient reaction procedure for the c-n coupling reaction (the buchwald-hartwig reaction), yielding products of n-arylanilines and n-arylamines in both conventional heating and microwave irradiation has been reported. the protocol utilizes a stable and new supper ferromagnetic nanoparticle chelating n-heterocyclic dicarbene palladium(ii) complex (pd-nhc) as catalyst which helps...
the application of the [pd{c6h3(ch2ch2nh2)-4-ome-5-κ2-c,n}(μ-br)]2 complex of 2-methoxyphenethylamine in the heck coupling reaction was considered under both conventional and microwave irradiation conditions, and their results were compared. this complex is an efficient, stable and non-sensitive to air and moisture catalyst for the vinylation of substituted aryl halides with different electroni...
The organic food is progressively enticing purchasers’ attention, as it recognized to be better than the produced by conventional agriculture and more sustainable for natural environment. Pesticides their metabolites can enter human body via water. In production, over 60 thousand chemical agents are applied, while 90% of harmful substances consumed. production based on qualitative healthy using...
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