A class action in various legal systems

The article is devoted to the application of the class action institution in different countries and legal systems. The article deals with questions about the meaning of the institute of class action, interests protected with the help of it, positive and negative aspects of this institution are estimated. In addition, the article analyses characteristics and conditions of presentation of the class actio

The prevalence of m. tuberculosis strains of various genetic families in Belgorod region

To estimate the prevalence and association with multiple drug resistance of strains of M. tuberculosis of various genetic families in the Belgorod region, to reveal the contribution of strains of the genetic family Beijing to the epidemic process of tuberculosis; evaluate the role of strains of M. tuberculosis of various genetic families in the formation of "rural foci of tuberculosis" in the regio

Acmeological approach to the world of professional skill of teachers of professional education

The article considers the possibilities of acmeological approach in professional development of teachers of vocational educationВ статье рассматриваются возможности акмеологического подхода в повышении квалификации педагогов профессионального образовани

Photometric observations of the supernova 2009nr

We present the results of our UBVRI CCD photometry for the second brightest supernova of 2009, SN 2009nr, discovered during a sky survey with the telescopes of the MASTER robotic network. Its light and color curves and bolometric light curves have been constructed. The light-curve parameters and the maximum luminosity have been determined. SN 2009nr is shown to be similar in light-curve shape and maximum luminosity to SN 1991T, which is the prototype of the class of supernovae Ia with an enhanced luminosity. SN 2009nr exploded far from the center of the spiral galaxy UGC 8255 and most likely belongs to its old halo population. We hypothesize that this explosion is a consequence of the merger of white dwarfs

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