نتایج جستجو برای: classified by different provinces
تعداد نتایج: 7757761 فیلتر نتایج به سال:
in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...
the purpose of this study is measuring total factor productivity (tfp) growth of sugar beet for different provinces of iran and then decomposing it to the changes in technical change, managerial efficiency change and scale efficiency change. for this purpose we used the data envelopment analysis (dea) method and malmquist productivity index. results showed that average growth of total factor pr...
parameters recognize different area weather and climatic and effect on the plants one of the best important effect elements is increase products yield. agro climatic study can state area ability and maximum exploit its. the aim of this research is, recognizing of the ability ecologic potential in different areas for cultivating brassica napus in regard to climatic temperature needs in khorasan ...
in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...
There is at present a doubly discrete classification for strange attractors of low dimension, d(L)<3. A branched manifold describes the stretching and squeezing processes that generate the strange attractor, and a basis set of orbits describes the complete set of unstable periodic orbits in the attractor. To this we add a third discrete classification level. Strange attractors are organized by ...
Introduction: Prevalence of obesity has been increased in Iran over the recent decades. Little is known about fraction of hypertension attributable to obesity in Iran. This study aimed to determine the population attributable fraction (PAF) of hypertension due to obesity across different provinces of Iran. Materials & Method: Data on prevalence of hypertension, were extracted from Iranian Mi...
Saccharum spontaneum is the most variable wild relative of sugarcane with potential for use in sugarcane improvement programs. In order to help preserve and exploit this species, 152 accessions from eight major geographical regions in China, including Hainan, Guangdong, Guangxi, Yunnan, Sichuan, Guizhou, Fujian, and Jiangxi provinces, were investigated by analyzing 20 simple sequence repeats (S...
one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...
objective: shigellosis is one of the most common causes of morbidity and mortality in children with diarrhea in developing countries. it is essential to assess the antibiotic resistance patterns of these bacteria. ipah gene is one of the virulence factors which can be used for detection of shigella spp. materials and methods: total of 100 isolates of shigella were collected from different prov...
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