Heuristic environment as condition of art criticism competence development for future teachers

Essential factor of professionally significant competences development of future art direction teachers is the educational environment as which it is necessary to understand the integrity of pedagogical conditions, interactions, processes, components of pedagogical process which is specially organized for achievement of the educational purposes. Results of a theoretical research which purpose was studying characteristics of the heuristic environment as conditions of development of competences of future art direction teachers are presented in article. The main intrinsic characteristic of the heuristic educational environment is the following: recognition of value of creative activity of subjects of educational process; implementation of stimulation, support and encouragement of creative activity of students; granting opportunities for inclusion in creative activity. The empirical research was directed to studying influence of specially organized heuristic educational environment on development of art criticism competence of future art direction teachers. Testing, observation, method of expert evaluations of results of creative activity were used by us for realization of a pedagogical experiment. The conducted research allowed to reveal that specially organized heuristic environment promotes high-quality development of art criticism competence which is shown in the following: future art direction teachers acquire culturological and art criticism contents at the levels above an average and high; barriers to transition to creative activity in the field of art criticism are broken; personalization of development of art criticism competence is carried out. Keywords: educational environment, heuristics, heuristic environment, art criticism competenc

The quality of natural waters of the Sverdlovsk region

The article deals with the problem of pollution of natural waters of the Sverdlovsk region and its treatmentВ статье рассматриваются проблемы загрязнения природных вод Свердловской области и ее очистк

NR2A at CA1 synapses is obligatory for the susceptibility of hippocampal plasticity to sleep loss.

A loss in the necessary amount of sleep alters expression of genes and proteins implicated in brain plasticity, but key proteins that render neuronal circuits sensitive to sleep disturbance are unknown. We show that mild (4-6 h) sleep deprivation (SD) selectively augmented the number of NR2A subunits of NMDA receptors on postsynaptic densities of adult mouse CA1 synapses. The greater synaptic NR2A content facilitated induction of CA3-CA1 long-term depression in the theta frequency stimulation range and augmented the synaptic modification threshold. NR2A-knock-out mice maintained behavioral response to SD, including compensatory increase in post-deprivation resting time, but hippocampal synaptic plasticity was insensitive to sleep loss. After SD, the balance between synaptically activated and slowly recruited NMDA receptor pools during temporal summation was disrupted. Together, these results indicate that NR2A is obligatory for the consequences of sleep loss on hippocampal synaptic plasticity. These findings could advance pharmacological strategies aiming to sustain hippocampal function during sleep restriction

Electromagnetically induced transparency in inhomogeneously broadened Lambda-transition with multiple excited levels

Electromagnetically induced transparency (EIT) has mainly been modelled for three-level systems. In particular, a considerable interest has been dedicated to the Lambda-configuration, with two ground states and one excited state. However, in the alkali-metal atoms, which are commonly used, hyperfine interaction in the excited state introduces several levels which simultaneously participate in the scattering process. When the Doppler broadening is comparable with the hyperfine splitting in the upper state, the three-level Lambda model does not reproduce the experimental results. Here we theoretically investigate the EIT in a hot vapor of alkali-metal atoms and demonstrate that it can be strongly reduced due to the presence of multiple excited levels. Given this model, we also show that a well-designed optical pumping enables to significantly recover the transparency

Research of sensitivity of some measures of quality assessment of hidden information in the audio content

The paper presents a comparison of some measures of difference between the original signal and the result of the introduction of additional information. The comparison was based on the analysis of the implementation of the results-based steganographic method of spectrum spreading. The paper presents the results of the comparison of some measures of difference based on the analysis of speech signals in their division into segments of equal lengt

Surgical management of ovarian dermoid cysts in children and adolescents

Department of Obstetrics and Gynecology, Medical University “N. Testemitsanu”, Kishinev, MoldovaIntroduction: The ovarian dermoid cysts are one of the most common neoplastic ovarian injuries found both in children and teenagers. For the girls with small ovarian diseases organ preserving operation it's extremely important for a proper functioning of puberty and future fertility. Purpose and Objectives: The aim of study was to present the reasons for making these surgeries in all the cases of ovarian dermoid cysts in order to ensure fertility and menstruation every month. Methods and materials: A prospective and retrospective analysis of all the ovarian cysts both in children and teenagers aged between 8 and 18, from the year 2000 through 2012 admitted in the Institute of Mother and Child Care, the department of operative gynecology was performed. Results: The ovarian dermoid cysts were localized mostly in the right side having a percentage of 64.7 vs. 35.3 for the left side. Cysts outermost dimension were 79.6±7.2 mm (95% CI:64.30-94.82) and minimum were - 65.1±6.5 mm (95% C l:51.21 -79.04), from 56 to 156 mm. Laparatomy was the surgery that was mostly used - 14/17 (82.4%), and laparoscopy was done only in 3/17 (17.6% ) cases. All of the organ preserving operations were statistically more common (p<0.001) over ovariectomy and were 14/17 (82.4%) vs. 3/17 (17.6%). Conclusions: It is vital to have a proper surgical approach for all the children and teenagers with ovarian cysts for maintaining a good sexual growth and fertility in the near future. These surgeries are the best method for this group of patient