نتایج جستجو برای: nrbr compound

تعداد نتایج: 127863  

Introduction: Due to the emergence of resistance to antimalarial drugs as well as the lack of vaccination for malaria, there is an urgent demand for the development of new antimalarial alternatives. Recently, our research group developed a new set of 3-alkylpyridine marine alkaloid analogs, of which a compound known as compound 5 was found to be inactive against Plasmodium ...

Journal: :physical chemistry and electrochemistry 0
hossein jalali jahromi department of chemistry, mahshahr branch, islamic azad university, mahshahr, iran

the reaction of ch3o2 radicals with acetaldehyde on the solid surface of nh4no3 has been studied in a flow capillary reactor at low pressure and room temperature. the experiments were performed using epr spectrometer combined with the kinetic method of radicals freezing. peroxy radicals revealed an oscillation complex behavior during the process regarding to the phenomenon of radicals multiplic...

Journal: :physical chemistry and electrochemistry 0

on the basis of experimental data a kinetic model for the heterogeneous interaction between alkylperoxyradicals and organic compounds in langmuir- hinshelwood approach at room temperature has been offered.the effect of oxygen on the kinetics of process in the presence, [o2]o = 1 x 1011 – 1.6 x 1012 molecules.cm-2, and absence of oxygen has been analyzed. over time the chain degenerate branching...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
l alavi department of chemistry, k. n. toosi university of technology m barzegar department of food science and technology, tarbiat modares university, p. o. box 14115-336, tehran, iran tel: + 98 - 21 - 48292323, fax: + 98 – 21 - 48292200 a jabbari department of chemistry, k. n. toosi university of technology h naghdi badi department of cultivation and development, institute of medicinal plants, acecr

background: thymus daenensis celak. is one of the medicinal plants which cultivated in iran. this plant involve high amount of polyphenols including thymol and carvacrol, which were reported to possess the high antioxidant activity. objective: antioxidative activity (aoa) and chemical constituents of thymus daenensis essential oil (tdeo) were examined. also, the effect of thermal treatments (80...

Journal: :the modares journal of electrical engineering 2006
kamyar - saghafi mohammad kazeme moravvej-farshi vahid ahmadi

in this paper, we examine the effect of the energy difference between the l- and the -valleys in compound semiconductor materials, carrier effective mass, and the scattering processes on the electron transport characteristics in mesfets. to do this, we use the monte carlo simulation to demonstrate the superiority of the ingaas mesfet, made on a semi-insulating inp substrate, over both inp and ...

Journal: :journal of crop protection 2015
saeed molaei shahab madah hosseini ebrahim sedaghati

some plant extracts have been reported to exhibit antimicrobial properties. plant based pesticides appear to be an alternative for the synthetic pesticides because of their less dangerous impacts. the objective of this study was to assess the inhibitory activity of brassica napus water extract on mycelial growth of six phytopathogenic fungi rhizoctonia solani, phythophtora drechseleri, pythium ...

Journal: :journal of agricultural science and technology 2010
s. kouchakzadeh

most previous laboratory studies of local scour at bridge abutments were performed in rectangular channels in which the distributions of flow velocity and bed shear stress were considered uniform in the transverse direction. in reality however, bridge abutments are usually located in the floodplain zone of rivers where velocity and shear stress distributions are directly affected by the lat...

Journal: :journal of nanostructures 2013
m. hosseyni sadr a. morsali sh. hojaghani

a new nano-sized cobalt(ii) coordination polymer, (col1).0.5dmf.1.5ch3oh(1); [h2l1 = 5-(4-carboxy phenyl azo) salicyilic acid] has been synthesized by a sonochemical method. the thermal stability of compound 1 was studied by thermo- gravimetric and differential thermal analyses. nano-structure of this coordination polymer was characterized by elemental analyses, ir spectroscopy,  powder x-ray d...

Journal: :iranian journal of pharmaceutical sciences 0
farzaneh lotfipour faculty of pharmacy; drug applied research center; tabriz university of medical sciences, tabriz, iran mohammad reza nahaei drug applied research center; school of medicine, tabriz university of medical sciences, tabriz, iran morteza milani faculty of pharmacy; tabriz university of medical sciences, tabriz, iran vahid javaherzadeh school of medicine, tabriz university of medical sciences, tabriz, iran amin omrani school of medicine, tabriz university of medical sciences, tabriz, iran navid attar faculty of pharmacy; school of medicine, tabriz university of medical sciences, tabriz, iran

a novel chemical detergent/disinfectant formulated based on persulfate salts, germicide p , is available for disinfection of surfaces and medical devices at the room temperature. because of the resistance of hospital-resident microorganisms, the antimicrobial activity of this compound is evaluated in the present study. the tests conducted with this disinfectant included bactericidal tests again...

Journal: :journal of sciences islamic republic of iran 0

the synthesis and single-crystal x-ray structure determination of the title compound [(bipy) , pb(0 ,cme) (o clo )] (1) and [(bipy) pb(clo ) ] (2) is described. compound (i) crystallizes in the triclinic space group p1(2), a= 7.384(2), b= 12.824(3), c= 10.622(6) a, ?= 73.41(2), ?= 80.98(2), ?= 73.68(2)', z= 2, and r =0.033 for 3408 independent reflections .compound (2) crystallizes in the ...

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