Personalization of Art Students' Training in the Context of the Transition to the Digital Economy

Today, one of the main resources for the effective functioning of many political, sociocultural, and communication processes is transition to the digital economy and digital reality in general. Informatization, computerization, automation naturally integrate into the artistic culture and transform it into a digital one. As a result, changes in the professional field of art definitely require changes in both the content, methodology and technological base of art education in the context of transition to digital economy. At the same time, digital technologies are a factor in the modernization of the higher education system, and its tool. There is an objective need to individualize and personalize educational technologies. In turn, digitalization creates the foundations by which these processes can be implemented. The article specifies pedagogical conditions for personalization of art students' training: activating self-education and self-development mechanisms through the creation of individual educational routes; enriching the informational educational and methodological base to maintain an individual format for studying the content of artistic culture; adopting a personal position of an adviser and a facilitator by the university teacher, which contributes to the design, stimulation and reflection of the personal and competent development of art students. The reliability of conclusions made within this theoretical study is confirmed by the positive results of experimental work

Radiological particularities of the obstructive vaginal anomalies

Introduction: Obstructive vaginal anomalies (OVA) are a very rare pathology, occurring at a frequency of 0.1% of newborn girls. OVA is a broad spectrum of various Müllerian anomalies: imperforate hymen (IH), complete transverse vaginal septum (CTVS), Herlyn-Werner-Wunderlich syndrome (HWW). Objective of the study: Evaluation of radiological features of obstructive vaginal anomalies by ultrasound examination (USG), computed tomography (CT) and magnetic resonance imaging (MRI). Material and methods: The retrospective and prospective study included 52 patients operated in the Department of Surgical Gynecology of the Institute of Mother and Child. The mean age was 15.7±0.3 years (95% CI: 14.97–16.34). Diagnosis confirmed by the USG exam (n=52,100%), CT (n=4, 7,7%) and MRI (n=7, 13,4%). Results: In all cases (100%) USG (transabdominal or transrectal) were performed. IH was detected in 29 (55.8%) cases, USG demonstrates hypoecogenic hematometrocolpos, MRI in T1W images - important uterine dilatation, intrauterine and intravaginal hemorrhagic fluid with hyperextension up to hymen; in T2W images – hyposemnal of intrauterine hemorrhagic content. CTVS was present in 8 (15.4%) cases, CT – intrauterine hyperdensus content with density up to 55UH; MRI demonstrates a vaginal transverse membrane appreciates its thickness and location. HWW syndrome was diagnosed in 15 (28.8%) patients and included uterus didelphys, obstructive hemivagina and ipsilateral renal agenesis. USG reveals renal agenesis and compensatory renal hypertrophy, the uterus didelphys with hypoecogenic fluid in the hemiuterus suggestive for haematometra, hematosalpinx. Based on the imaging data, the mean volume of the hematocolpos was 923.6±79.1 ml (95% CI:764.8–1082). Hematometra was detected in 23(44%) patients, hematosalpinx and pelvic endometriosis – 3(5.7%). Based on radiological findings (USG, TC and MRI), the maximal size of hematocolpos was 112.4±5.8 mm (95% CI:100.6–124.2), the minimal size was 76.7±3.5 mm (95% CI:69.64–83.81). In 16(30.7%) cases vaginal malformations were combined with renal anomalies. Conclusions: Modern imaging techniques elucidate the particularities of the radiological anatomy of OVA, allow early diagnosis of this pathology, treatment management to restore menstrual and fertile function

High frequency polarization switching of a thin ferroelectric film

We consider both experimentally and analytically the transient oscillatory process that arises when a rapid change in voltage is applied to a $Ba_xSr_{1-x}TiO_3$ ferroelectric thin film deposited on an $Mg0$ substrate. High frequency ($\approx 10^{8} rad/s$) polarization oscillations are observed in the ferroelectric sample. These can be understood using a simple field-polarization model. In particular we obtain analytic expressions for the oscillation frequency and the decay time of the polarization fluctuation in terms of the material parameters. These estimations agree well with the experimental results

Quantum memory for light via stimulated off-resonant Raman process: beyond the three-level Lambda-scheme approximation

We consider a quantum memory scheme based on the conversion of a signal pulse into a long-lived spin coherence via stimulated off-resonant Raman process. For a storing medium consisting of alkali atoms, we have calculated the Autler-Townes resonance structure created by a strong control field. By taking into account the upper hyperfine states of the D1 optical transition, we show important deviations from the predictions of the usual three-level Lambda-scheme approximation and we demonstrate an enhancement of the process for particular detunings of the control. We estimate the memory efficiency one can obtain using this configuration.Comment: 8 pages, 6 figure

Genome-wide association studies targeting the yield of extraembryonic fluid and production traits in Russian White chickens

Background: The Russian White is a gene pool breed, registered in 1953 after crossing White Leghorns with local populations and, for 50 years, selected for cold tolerance and high egg production (EL). The breed has great potential in meeting demands of local food producers, commercial farmers and biotechnology sector of specific pathogen-free (SPF) eggs, the former valuing the breed for its egg weight (EW), EL, age at first egg (AFE), body weight (BW), and the latter for its yield of extraembryonic fluid (YEF) in 12.5-day embryos, ratio of extraembryonic fluid to egg weight, and embryo mass. Moreover, its cold tolerance has been presumably associated with day-old chick down colour (DOCDC) white rather than yellow, the genetic basis of these traits being however poorly understood. Results: We undertook genome-wide association studies (GWASs) for eight performance traits using single nucleotide polymorphism (SNP) genotyping of 146 birds and an Illumina 60KBeadChip. Several suggestive associations (p <5.16*10(-5)) were found for YEF, AFE, BW and EW. Moreover, on chromosome 2, an association with the white DOCDC was found where there is an linkage disequilibrium block of SNPs including genes that are responsible not for colour, but for immune resistance. Conclusions: The obtained GWAS data can be used to explore the genetics of immunity and carry out selection for increasing YEF for SPF eggs production.Peer reviewe

Ferroelectric Nanotubes

We report the independent invention of ferroelectric nanotubes from groups in several countries. Devices have been made with three different materials: lead zirconate-titanate PbZr1-xTixO3 (PZT); barium titanate BaTiO3; and strontium bismuth tantalate SrBi2Ta2O9 (SBT). Several different deposition techniques have been used successfully, including misted CSD (chemical solution deposition) and pore wetting. Ferroelectric hysteresis and high optical nonlinearity have been demonstrated. The structures are analyzed via SEM, TEM, XRD, AFM (piezo-mode), and SHG. Applications to trenching in Si dynamic random access memories, ink-jet printers, and photonic devices are discussed. Ferroelectric filled pores as small as 20 nm in diameter have been studied