Business education as the engine of socio-economic change in former soviet countries: the Belarusian case

The article is devoted to some new areas of business education in the Republic of Belarus whose emergence is a reaction to demand of the national economy in the course of social and economic development of the country at the beginning of the XXIst century. Opening of specialties of the second level of higher education (magistracy) is a result of the scientific researches carried out in the Academy of Management under the aegis of the President of the Republic of Belarus in 2009-2014yesBelgorod State National Research Universit

Enhancement of Kerr nonlinearity via multi-photon coherence

We propose a new method of resonant enhancement of optical Kerr nonlinearity using multi-level atomic coherence. The enhancement is accompanied by suppression of the other linear and nonlinear susceptibility terms of the medium. We show that the effect results in a modification of the nonlinear Faraday rotation of light propagating in an Rb87 vapor cell by changing the ellipticity of the light.Comment: 4 pages, 3 figures Submitted to Optics Letter

Observation of polarization quantum noise of laser radiation in Rb vapor cell

We present experimental study of polarization quantum noise of laser radiation passed through optically think vapor of Rb87. We observe a step-like noise spectrum. We discuss various factor which may result in such noise spectrum and prevent observation of squeezing of quantum fluctuations predicted in Matsko et al. PRA 63, 043814 (2001).Comment: 4 pages, 5 figures. Translated from Russian by I. Novikov

Radiation trapping in coherent media

We show that the effective decay rate of Zeeman coherence, generated in a Rb87 vapor by linearly polarized laser light, increases significantly with the atomic density. We explain this phenomenon as the result of radiation trapping. Our study shows that radiation trapping must be taken into account to fully understand many electromagnetically induced transparency experiments with optically thick media

Temperature dependence of the electron spin g factor in GaAs

The temperature dependence of the electron spin $g$ factor in GaAs is investigated experimentally and theoretically. Experimentally, the $g$ factor was measured using time-resolved Faraday rotation due to Larmor precession of electron spins in the temperature range between 4.5 K and 190 K. The experiment shows an almost linear increase of the $g$ value with the temperature. This result is in good agreement with other measurements based on photoluminescence quantum beats and time-resolved Kerr rotation up to room temperature. The experimental data are described theoretically taking into account a diminishing fundamental energy gap in GaAs due to lattice thermal dilatation and nonparabolicity of the conduction band calculated using a five-level kp model. At higher temperatures electrons populate higher Landau levels and the average $g$ factor is obtained from a summation over many levels. A very good description of the experimental data is obtained indicating that the observed increase of the spin $g$ factor with the temperature is predominantly due to band's nonparabolicity.Comment: 6 pages 4 figure

Mainstreaming gender in the EU-accession process: the case of the Baltic Republics

Since the early 1990s, the Baltic states have gone through processes of economic transition and liberalization. Although various reports give an overview of gendered impacts of these economic reforms, they fail to elaborate on the more complex relations between gender, citizenship, and social exclusion. This article explores these relations in more detail. The first decade of reforms in the Baltic states resulted in a lack of economic prospects, in particular for women from minority groups and women working in low-pay sectors. This made them increasingly vulnerable to trafficking for sexual purposes: migration to Western Europe was an attractive alternative for those without work, whether through legal or illegal migration channels. The failure to address this issue and other issues effectively cannot be attributed to the European level only. This argues that effective mainstreaming is also hampered by rapid changes in national governments, by political ideologies regarding the role of women, and by a lack of information and expertise within newly established gender-equality units