نتایج جستجو برای: activation

تعداد نتایج: 427476  

Fatemeh Naseri Maryam Darvishpoor Saeed Jameh-Bozorghi, Zahra Javanshir

Structural properties, energies behavior and NBO analysis was performed for1-5 prototrophic shift endinelboran where substitutions like H, CH3 and CF3 that were placed on Benzene were investigated by usingDFT-B3LYP/6-311+G** level of theory. The Results show that, -BH2 shift doesn’t take place and a kind of[1,3] shift for borotrophic occured. In prototrophic shift, however, [1,5] transition eas...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
mohsen shabani mohammad yousefi majid abdouss fariborz aziznejad hashem shahrozvand

a series of complexes of the type trans-[co(acacen)(amine)2]clo4, where (acacen) is the (bis(acetyleacetone) ethylenediimine) and the amines are benzyl amine (bzlan) 1, 2-amino pyrimidine (2ampy) 2, n-methylpipirazine (nmpip) 3, 3-methyl pyridine (3mpy) 4, p-toluidine (p-toldn) 5, has been synthesized and characterized by uv-vis. and ft-ir. the kinetics of the substitution reaction of [co(acace...

Journal: :تحقیقات علوم رفتاری 0
پریسا سید موسوی حمید رضا پور اعتماد محمد رضا فیاض بخش فاطمه اسماعیل بیگی پریسا فرنودیان parisa seyed mousavi

aim and background: the role of behavioral inhibition and activation systems as predisposing factors in readiness for emotional and behavioral problems in adolescents has been increasingly studied in recent years. the purpose of this study was to investigate the role of these two systems in predicting the development of psychopathology in adolescents. methods and materials: the study population...

Journal: :journal of chemical health risks 0
m. m. heravi department of chemistry , mashhad branch , islamic azad university, mashhad, iran s. rodi department of chemistry , mashhad branch , islamic azad university, mashhad, iran p. ardalan young researchers club, mashhad branch, islamic azad university, mashhad, iran

extracts of cotoneaster medicus, glycyrrhiza glabra, as endemic plants of iran, along with mixture of them were investigated for their antioxidant activities using 2, 2- diphenyl-1-picrylhidrazyl (dpph) reagent. uv-vis spectrophotometry method was used to evaluate the ability of cotoneaster and glycyrrhiza glabra antioxidant to scavenge dpph radical. the kinetic parameters such as rate constant...

Journal: :international journal of nano dimension 0
m. riazian department of engineering, tonekabon branch, islamic azad university, tonekabon, iran. a. bahari department of physics, university of mazandaran, babolsar, iran.

we report on the synthesis, morphology, chemically and structurally of tio2-cuo-sio2 nanostructure with different precursors molar ratio and calcined temperatures. in the present work, ternary reactive powders in the tio2-cuo-sio2 systems have been obtained using the sol-gel method, by the simultaneous gelation of all cations. the compounds and other elements change in special chemical and phys...

Journal: :iranian journal of radiation research 0
a.a. fathivand radiation applications research school, nuclear science and technology research institute, tehran, iran h. khalafi radiation applications research school, nuclear science and technology research institute, tehran, iran m. vahabi-moghaddam university of guilan, p.o. box 3489, rasht, iran y. kenare university of guilan, p.o. box 3489, rasht, iran m. bathaie radiation applications research school, nuclear science and technology research institute, tehran, iran

background: in addition to gas pollutants, many chemicals and air pollutants are in the form of particulate matter. particulate matter consists of a complex mixture of variable sized particles and physicochemical composition. these particles mainly contain minerals including fe, al, ca, k, cu, ti, mn, ni, v and their size, chemical composition and concentration are important to assess the exten...

Journal: :iranian journal of psychiatry 0
sajjad basharpoor university of mohaghegh ardabili, ardabil, iran parviz molavi ardabil university of medical science, ardabil, iran usha barahmand university of mohaghegh ardabili, ardabil, iran seyed amin mousavi ardabil azad university of medical science, ardabil, iran

objective: this research was conducted to investigate the relationship between behavioral activation-inhibition systems and bullyingvictimization behaviors among adolescents. method: this was a correlational and cross-sectional study. two hundred and thirty school boys were selected randomly by multistage cluster sampling method, and participated in this research. this sample responded to a dem...

Journal: :iranian endodontic journal 0
zahed mohammadi sousan shalavi luciano giardino flavio palazzi saeed asgary

using ultrasonic devices in endodontics can enhance the antibacterial and tissue dissolving ability of different root canal irrigants such as sodium hypochlorite (naocl) which is the most common irrigant with excellent antibacterial and tissue dissolving abilities. however, due to its high surface tension, its penetration into the irregularities of the root canal system is a challenge. the purp...

Journal: :iranian journal of pharmaceutical sciences 0
mohammad hossein fathi biomaterials group, materials engineering department, isfahan university of technology,isfahan, iran ehsan mohammad zahrani biomaterials group, materials engineering department, isfahan university of technology,isfahan, iran

synthetic hydroxyapatite (ha) is the most helpful because of its similarity to natural bone in both crystalline structure and chemical composition. recently, fluoridated hydroxyapatite (fha) has been developed in dental and orthopedic application because it has lower solubility than pure ha, while maintaining the comparable bioactivity and biocompatibility. the aim of this study was to synthesi...

Journal: :jundishapur journal of microbiology 0
umar saeed attaur rahman school of applied biosciences, national university of sciences and technology, islamabad, pakistan; attaur rahman school of applied biosciences, national university of sciences and technology, islamabad, pakistan. tel: +92-3235338544 sobia mazoor attaur rahman school of applied biosciences, national university of sciences and technology, islamabad, pakistan nasir jalal attaur rahman school of applied biosciences, national university of sciences and technology, islamabad, pakistan zahra zahid piracha attaur rahman school of applied biosciences, national university of sciences and technology, islamabad, pakistan

conclusions to date, a large number of viruses are proved to trigger innate immunity via tlrs, suggesting that these receptors are likely to be important in the outcome of viral infection. this suggestion is supported by the observation that many viruses have evolved mechanisms not only to evade the innate immune system, but also to subvert it for the benefit of the virus. materials and methods...

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