Enhanced photoinduced nematic reorientation in mixture with azo-dye-substituted polymer

The optically induced reorientation of nematic liquid crystal doped with azo-dye substituted polymer is investigated measuring photoinduced birefringence. These measurement reveal the value (Dn~0.1) of induced birefringence of liquid crystal with dye polymer which significantly exceeds the value of birefringence previously obtained in nematic mixture with the low molecular weight dye. More than one order of enhancement is connected with lower diffusivity of polymer.Comment: 11 pages, 3 figure

On the Class II Methanol Maser Periodic Variability due to the Rotating Spiral Shocks in the Gaps of Disks Around Young Binary Stars

We argue that the periodic variability of Class II methanol masers can be explained by variations of the dust temperature in the accretion disk around proto-binary star with at least one massive component. The dust temperature variations are caused by rotation of hot and dense material of the spiral shock wave in the disk central gap. The aim of this work is to show how different can be the Class II methanol maser brightness in the disk during the Moment of Maximum Illumination by the Spiral Shock material (hereafter MMISS) and the Moment when the disk is Illuminated by the Stars Only (MISO). We used the code CLOUDY (v13.02) to estimate physical conditions in the flat disk in the MISO and the MMISS. Model physical parameters of the disk were then used to estimate the brightness of 6.7, 9.9, 12.1 and 107 GHz masers at different impact parameters $p$ using LVG approximation. It was shown that the strong masers experience considerable brightness increase during the MMISS with respect to MISO. There can happen both flares and dips of the 107 GHz maser brightness under the MMISS conditions, depending on the properties of the system. The brightest 9.9 GHz masers in the MMISS are situated at the greater $p$ than the strong 6.7, 12.1 and 107 GHz masers that are situated at $p<200$ AU. The brightness of 9.9 GHz maser in the MMISS suppressed at $p<200$ AU and increase at $p>200$ AU.Comment: Accepted for publication in MNRAS, 9 figure

The Current Status of the Examination System for Evaluating the Russian Language Proficiency, the Knowledge of the History as well as the Fundamentals of the Russian Legislation

This article focuses on the system of testing the Russian language proficiency as well as on the knowledge of the history and the legislation basics of the Russian Federation The subject of this research is the realization by the government bodies organizations and other involved actors of the provisions of Paragraph 8 Clause 15 1 of the Federal Law On the Legal Status of Foreign Citizens in the Russian Federation Federal Law 115-FZ of July 25 2002 The purpose of this work implies offering an overview of the current practice in terms of implementing the indicated requirements in 85 subjects of the Russian Federation for further development of recommendations regarding its improvement The article provides a look at research results of one of the components of the system employed for linguisticdidactic testing the regional system of the Russian language testing the knowledge of history and basics of the Russian legislation Through the course of this research there were over 120 regulatory acts analyzed with 509 respondents involved 412 of them being employees of organizations authorized to carry out the test while 97 persons were officers of the regional branches of the Internal Affairs Ministr

Factors related to RNA polymerase II transcription are localized in interchromatin granule clusters of Panorpa communis oocytes.

Diplotene oocyte nucleus of the scorpionfly Panorpa communis is transcriptionally silent and contains numerous nuclear bodies including interchromatin granule clusters (IGCs). The latter consist of the granules of 30-50 nm in diameter and contain IGC marker protein SC35 as well as RNA polymerase II. In this study, we also localized in P. communis oocyte IGCs the transcription coactivators CBP/p300, TATA-binding protein (TBP) which is a component of the basal transcription factor TFIID and the basal transcription factor TFIIH. We belive that IGCs in transcriptionally inert P. communis oocytes are storage sites for the components of RNA polymerase II holoenzyme and other factors of RNA pol II transcription

Chapter A Scientific Method for the Attribution of Paintings with Application to Leonardo’s Mona Lisa Twins

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