Cataclysmic Variables from USNO-B1.0 Catalog: Stars with Outbursts on Infrared Palomar Plates

The search was performed for cataclysmic variable stars with outlying infrared magnitudes in USNO-B1.0 catalog. The selection was limited to objects in the Northern hemisphere with (B1-R1) 3.5. The search method is described, and the details on individual stars are given. In total 27 variable objects were found with 20 being the previously known ones and 7 - new discoveries. 4 of newly found variables are dwarf novae, while the remaining 3 - pulsating red variables of Mira or semi-regular types, including a heavily reddened one in Pelican nebula. The correct pulsation period is determined for two stars discovered by other researchers, and the dwarf nova nature is confirmed for another object previously suspected as such. The perspectives of the proposed search technique in the framework of Virtual Observatory are also discussed.Comment: 8 pages, 10 figures, submitted to Astronomy Letter

New Cataclysmic Variable 1RXS J073346.0+261933 in Gemini

In course of the search for the optical identifications associated with ROSAT X-ray sources we have found a highly variable object with the very unusual long-term behavior, color indices and high X-ray-to-optical flux ratio. We report the archival photometric light curve from the Catalina Sky Survey, optical spectroscopy from RTT150 and time-resolved photometry from Astrotel-Caucasus telescope. The object appears to be the magnetic cataclysmic variable (polar) with orbital period of P=3.20 hr.Comment: 8 pages, 5 figures. Submitted to Astronomy Letter

International justice as a way to settle conflicts in the world arena : the idea and the implementation

The purpose of this article is to identify the processes regarding the emergence of international justice and the start of international courts functioning. Dialectical, phenomenological and historical methods of analysis is the methodological basis of the article to allow to identify the international justice essence and the specifics of this phenomenon implementation in the initial stages of its development. In the course of this analysis the authors came to the conclusion that the international justice concept formation occurred in the turn of the XIXth and XXth centuries while the international justice formation took place in the first half of the XXth century.peer-reviewe

Integration of economic shifts in the european development in the second half of the XXth century

Purpose: The article analyzes those processes having initiated the development of the European and political integration. The article is focused on the genesis and the development of the Council for Mutual Economic Assistance, the European Union, NATO and the Warsaw Pact. Design/Methodology/Approach: By applying the system analysis method as well as dialectical and historical methods, the authors have attempted to reveal the significance of those events resulted in modern international organizations establishment. Findings: Authors have analyzed the XX century trends in integration and highlighted Western Europe as the most productive in the process. Authors have provided the USSR and post-USSR integration overview to reveal the European development patterns. Practical Implications: The research results may be implemented into political and educational courses as well as to be used by official authorities. Originality/Value: The main contribution of this study is the deep integration trends'analysis and the emphasis on the unipolar-bipolar-multipolar world's concept.peer-reviewe

Identification of new cataclysmic variables in the 1RXS and USNO-B1.0 catalogs

As a result of applying the original optical variability search method on publicly available data, we have found eight new cataclysmic variables and two possible Optically Violent Variable quasars among the previously unidentified X-ray sources in the ROSAT catalog. We describe the search method and present the characteristics of the newly identified variable stars. The obtained results demonstrate the large potential of the concept of Virtual Observatory for identifying new objects of astrophysical interest.Comment: 16 pages, 11 figures, 2 tables; submitted to Astronomy Letter

LC nanocomposites: induced optical singularities, managed nano/micro structure, and electrical conductivity

Microstructure, phase transitions, electrical conductivity, and optical and electrooptical properties of multiwalled carbon nanotubes (NTs), dispersed in the cholesteric liquid crystal (cholesteryl oleyl carbonate, COC), nematic 5CB and their mixtures, were studied in the temperature range between 255 K and 363 K. The relative concentration X=COC/(COC+5CB)was varied within 0.0-1.0. The concentration $C_p$ of NTs was varied within 0.01-5% wt. The value of X affected agglomeration and stability of NTs inside COC+5CB. High-quality dispersion, exfoliation, and stabilization of the NTs were observed in COC solvent ("good" solvent). From the other side, the aggregation of NTs was very pronounced in nematic 5CB solvent ("bad" solvent). The dispersing quality of solvent influenced the percolation concentration $C_p$, corresponding to transition between the low conductive and high conductive states: e.g., percolation was observed at $C_p=1$ and $C_p=0.1$ for pure COC and 5CB, respectively. The effects of thermal pre-history on the heating-cooling hysteretic behavior of electrical conductivity were studied. The mechanism of dispersion of NTs in COC+5CB mixtures is discussed. Utilization of the mixtures of "good" and "bad" solvents allowed fine regulation of the dispersion, stability and electrical conductivity of LC+NTs composites. The mixtures of COC and 5CB were found to be promising for application as functional media with controllable useful chiral and electrophysical properties.Comment: 10 pages, 9 figure

Насіннєва продуктивність деревних рослин в умовах забруднення довкілля викидами металургійного підприємства

The influence of environment pollution by metallurgical industry emissions on woody plants bearing parameters was examined. The results obtained show the decrease of bearing rate, diminution of seeds, fruits and seed cells sizes in woody plants affected by technogenic emissions. Attenuation of the 1000 seeds’ weight was established. Incresing the amount of fruits with development deviations was ascertained. It was found aplasia and abnormal form of the samara fruit of ash and ailanthus trees, arcuation and narrowing of some parts of the catalpa fruitcases. Practical recommendations on using seeds’ sensitive parameters in biomonitoring of woody phytocenoses under technogenic stressful conditions are proposed.Изучено влияние загрязнения окружающей среды выбросами металлургического предприятия на показатели плодоношения древесных растений. Результаты исследования свидетельствуют о снижении интенсивности плодоношения, уменьшении размеров плодов, семян, семенных камер у древесных растений в сфере влияния техногенных эмиссий. Установлено снижение массы 1 000 семян. Обнаружено возрастание количества плодов с нарушениями развития: недоразвитие и аномальная рмафо крылатки у ясеней и айланта, искривление и сужение либо расширение отдельных участков коробочки у катальпы. Даны рекомендации по использованию чувствительных показателей семенной продуктивности древесных растений в мониторинговых исследованиях в условиях техногенной нагрузки.Вивчено вплив забруднення довкілля викидами металургійного підприємства на показники плодоношення деревних рослин. Результати дослідження свідчать про зниження інтенсивності плодоношення, зменшення розмірів плодів, насіння, насіннєвих камер у деревних порід за дії техногенних емісій. Встановлено зниження маси 1 000 насінин. Виявлено збільшення кількості плодів із порушеннями розвитку: недорозвиток і аномальна форма крилатки сенівв я і айланта, викривлення та звуження або розширення окремих ділянок коробочки в катальпи. Надано рекомендації щодо використання чутливих показників насіннєвої продуктивності деревних рослин у моніторингових дослідженнях за умов техногенного навантаження

Structure and Corrosive Firmness of Composition Materials on the Basis of Copper and Molybdenum Got Method Electron-Beam Technology

The article describe the study of corrosive firmness of composition materials on the basis of copper, obtained by EB-PVD method. Corrosive firmness of condensates was explored by gravimetric method. The especially decreasing of the corrosive stability is definite during concentration of molybdenum about 12 %. Chemical composition of condensates showed that in the stationary terms of receipt of materials, their chemical composition is heterogeneous on a thickness. The structure of condensate has the expressly expressed macro-laminated character, the size of layers hesitates from a few ten microns of the to several hundred

Optical polarization observations with the MASTER robotic net

We present results of optical polarization observations performed with the MASTER robotic net for three types of objects: gamma-ray bursts, supernovae, and blazars. For the Swift gamma-ray bursts GRB100906A, GRB110422A, GRB121011A, polarization observations were obtained during very early stages of optical emission. For GRB100906A it was the first prompt optical polarization observation in the world. Photometry in polarizers is presented for Type Ia Supernova 2012bh during 20 days, starting on March 27, 2012. We find that the linear polarization of SN 2012bh at the early stage of the envelope expansion was less than 3%. Polarization measurements for the blazars OC 457, 3C 454.3, QSO B1215+303, 87GB 165943.2+395846 at single nights are presented. We infer the degree of the linear polarization and polarization angle. The blazars OC 457 and 3C 454.3 were observed during their periods of activity. The results show that MASTER is able to measure substantially polarized light; at the same time it is not suitable for determining weak polarization (less than 5%) of dim objects (fainter than 16$^m$). Polarimetric observations of the optical emission from gamma-ray bursts and supernovae are necessary to investigate the nature of these transient objects.Comment: 31 pages, 12 figures, 4 tables; Exposure times in Table 2 have been correcte

Application of Belarusian-Made Self-Expanding Ti-Ni Stents in the Treatment of Obstructing Colorectal Cancer

Stenting, Colorectal Cancer, Stent, Titanium Nickelid