High transverse momentum inclusive neutral pion production in d+Au collisions at RHIC

Preliminary results are presented on high-pT inclusive neutral pion production in d+Au collisions at sqrt(sNN) = 200 GeV in the pseudo-rapidity range 0 gamma,gamma are detected in the Barrel electromagnetic calorimeter of the STAR experiment at RHIC. The analysis procedure is described in detail and the results are found to be in good agreement with earlier STAR findings and with next-to-leading order perturbative QCD calculations.Comment: 4 pages, 3 figures, poster proceedings of Quark Matter conference, Budapest (Hungary), 4-9 August 200

Analysis of migration processes based on census data

The subject matter of research is the internal migration processes of the Russian population in the period from the 1960s to 2010. The research is based on the data about the territorial population flows published in the all-Union census materials of 1970, 1979, and 1989, and in the all-Russia census materials of 2002 and 2010. The basic migration flows and directions are considered. Methodologically, the analysis of migration is based on the use of end-to-end indicators enabling to assess the dynamics of migration processes over a long period. Special attention is paid to rural-urban internal migrations, the volumes, patterns and consequences of which have not been so far properly investigated or assessed. The authors offer and calculate relative indicators that have never been used to assess the processes in question. To make the census materials of the soviet and post-soviet periods comparable, the economic zoning adopted before 2000 is used, and the administrative-territorial network is unified. The authors confirm the hypothesis that from decade to decade the intensity of territorial mobility of both urban and rural population was reduced. Interregional migration flows are considered, and various tendencies and migration intensity for over four decades are de ned. The authors analyze the dynamics in the structure of migrants by the time they lived in the place of their permanent residence in various regions. The research shows that the tendencies developed at that time and persisting continue to adversely affect the territorial re-distribution of population and the regional social and economic development of the country. The research results can be used in adjusting the regional socio-economic and migration policy.The article has been prepared with the support of the Russian Humanitarian Science Foundation Project № 14–02–00525

Вплив адсорбції простих молекул на фазовий перехід у діоксиді ванадію

Вплив адсорбції простих молекул на температуру фазового переходу (T = 338–339 K) дослідже- но з використанням моделей поверхні діоксиду ванадію, співвимірних із цими молекулами. Темпера- турні залежності вільної енергії фаз до та після переходу перетинаються за температур 200–216 К, що відомо для наноструктур діоксиду ванадію. Показано, що використання методу теорії функціоналу густини з гібридним функціоналом B3LYP дає результати, майже ідентичні отриманим ab initio.The effect of adsorption of simple molecules on the temperature of phase transiton in vanadium dioxide (T = 338–339 K) has been studied by means of the models of vanadium dioxide surface commensurable with the sizes of the molecules participating in adsorption. Temperature dependences of the free energy of phases before and after the transition intersect at temperatures of 200–216 К, which is known for nanostructure of vanadium dioxide. Calculations by DFT method produce results almost identical to the calculations ab initio

Research of migration processes in electronic social networks

The article сarries out an analysis of the practices of using electronic social networks (Facebook, Twitter, Vkontakte, etc.) in the study of migration processes. The paper shows how alternative to traditional sources (administrative, surveys) data allow us to form an up-to-date idea of the spatial-temporal and socio-demographic characteristics of migration. The authors study the integration of migrants in destination countries, including difficulties of assimilation and identity preservation, geography of migration flows, migration due to natural disasters and political reasons, intellectual and labour migration. The specificity of the data generated by social networks is that they cover the entire population and are produced in real time.The paper highlights the search for the necessary information using the means of platforms – advertising plugins, geolocation in posts and information directly collected from users, the functioning of certain communities, published comments. The study also gives important methodological features, the success of the results of any research conducted through the analysis of electronic social networks depends on the consideration of which. The problem of the information obtained with their help lies in such limitations as accessibility (technical features of specific platforms), representativeness (insufficient development of statistical techniques for evaluation) and variability of user preferences. In conclusion, the authors conclude about the prospects of using digital mass communication media in the study of migration processes.The scientific and practical significance of the research paper lies in the fact that it complements the literature on the topic under consideration, being the first systematic review of it in the Russian language, and also provides recommendations on the use of the information obtained