نتایج جستجو برای: russia
تعداد نتایج: 33629 فیلتر نتایج به سال:
The title compound, [Ru(2)(CH(3)CO(2))(4)(C(6)H(4)N(2))(2)]PF(6)·C(2)H(4)Cl(2), was obtained via a rapid substitution reaction in 2-propanol whereby 3-cyano-pyridine replaces the axial water mol-ecules in the diaquatetra-μ-acetato-diruthenium(II,III) hexa-fluorido-phosphate starting material. The product rapidly precipated and crystals were grown from 1,2-dichloro-ethane. The 1,2-dichloro-ethan...
BACKGROUND The effectiveness of the universal school-based alcohol prevention program "Unge & Rus" [Youth & Alcohol] was tested by an independent research group. The program aims to prevent alcohol use and to change adolescents' alcohol-related attitudes. The main outcome measure was frequency of monthly alcohol use, favorable alcohol attitudes, perceived behavioral control (PBC), positive alco...
systematic and widespread corruption; a problem in russia’s transition period russia is among those countries that are grappled with widespread and systematic corruption in state organizations. meanwhile, different russian governments have failed to reduce the scope of corruption. this article studies nature, roots and repercussions of corruption and analyzes approaches to combat it in russia. ...
for many political observers, the collapse of the soviet :union: would lead to accelerate the process of democratization in all the remained countries from this event, especially russia. but very soon it was clear that the country is confronted with many critical obstacles in this way. the considerable weakness of the civil society and its institutions along with the legacy of centralized power...
A.V. Duplinskiy, 2 E.O. Kiktenko, 3 N.O. Pozhar, M.N. Anufriev, R.P. Ermakov, A.I. Kotov, A.V. Brodsky, R.R. Yunusov, V.L. Kurochkin, A.K. Fedorov, 6, ∗ and Y.V. Kurochkin Russian Quantum Center, Skolkovo, Moscow 143025, Russia Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region 141700, Russia Steklov Mathematical Institute of Russian Academy of Sciences, Moscow 119991, Russi...
The excited state dynamics and structure of the photochemically active complex cis-[Ru(bpy)2(py)2](2+) have been investigated using optical transient absorption (OTA) and X-ray transient absorption (XTA) spectroscopy, and density functional theory (DFT). Upon light-excitation in aqueous solution cis-[Ru(bpy)2(py)2](2+) undergoes ultrafast dissociation of one pyridine ligand to form cis-[Ru(bpy)...
Functionality preferences of metathesis Ru carbenes to various alkenes and alkynes with electronic and steric diversity were determined by using time-dependent fluorescence quenching. The functionality preferences depend not only on the properties of multiple bonds but also on the ligands on Ru. There was a good correlation between functionality preference and the metathesis reaction outcome. T...
Along the history, relations between Iran and Russia always faced with great changes and transitions and always, the foundation of these relations have been on the base of political, security and military and sometimes economical affairs. Iran and its people have special identity elements like: Persian language, Shiite Islamism, nationalism, regional hegemonies, anti-foreignism and etc, that so...
Six new species of the genus Platypalpus are described from the Caucasus: P. abagoensis sp. nov. (Russia: Republic of Adygea), P. arzanovi sp. nov. (Russia: Krasnodarskiy Territory, Rostov Prov.), P. gazaryani sp. nov. (Russia: Republic of Adygea), P. kamyshanovensis sp. nov. (Russia: Krasnodarskiy Territory), P. odintsovi sp. nov. (Russia: Krasnodarskiy Territory), P. neberdzaensis sp. nov. (R...
russia is considered the core of the former empire of the ussr. many social and structural features of the soviet :union: could be observed in the development of russia’s political power and strategic attitude. geo-political competitions between russia and the west can be traced back to the 19th century. these competitions were shaped within the framework of the balance of power system in inter...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید