Alkyldifluorophosphites, ROPF2 (R = ^-substituted benzyl group, neopentyl, 1-adamantyl) have been obtained by a new method, involving reaction of the appropriate alkyl trimethylsilylether, ROSiMe3 with chlorodifluorophosphine, PF2C1. Reactions of these difluorophosphites with platinum(II) complexes of the type [LaPtCla] (L = PEt3, PPI13) led to products such as irans-[L2PtCl(POF2)] and {[p-XC6H...

â â  the present study attempts to investigate the urban hierarchy in iran between 1996-2006. the research method is content and statistical analysis. the necessity data were collected by documental method. in addition to the analysis and sorting of the data regarding the situation of iranian cities based on different models such as entropy ,ginny coefficients, urban concentration index, and ra...

A regional key comparison EURAMET.EM-K5.1 and a supplementary comparison COOMET. EM-S2 for electrical power were conducted between participating laboratories from the Eurasian region. Measurements were made over the period 2003 to 2011. The results showed good agreement between all but one of the participating laboratories. The proposed procedure of linking results of key and supplementary comp...

abstract increase in aquatics demand is one of the major goals for production policies. hence analysis of demand structure and aquatics consumption patterns is very applicative and useful for policy makers. using the almost ideal demand system (a.i.d.s), the demand function for types of aquatics and chicken meat in urban and rural societies in kerman city were estimated. applying time series da...

Motorized transportation systems in the urban areas witnessed huge developments in the infrastructures thanks to the advances in various aspects of technology. This urbanization revolution has its own pros and cons. The resulting dominance of vehicles has limited the presence of people in public places and their participation in social activities, threatening the human based lifestyle of the ci...

The economic development of Poland and its regions results from a complex interaction of many factors, which include regional innovation policy. The task of regional innovation policy is to identify and develop smart specialisations, which may offer an opportunity of building up sustained competitive advantage of Poland’s provinces. The identification of regional specialisations for the needs o...