Evaluation of distance learning in ukrainian higher media education: Perspectives and impact of stakeholders

The research focuses on the utilization of computer-oriented educational environments for distance learning, aiming to assess the current landscape, highlighting both the positives and negatives, as well as successful examples and future prospects in higher education. Methodologically, the study involved an analysis of various sources, including statistical and narrative information, and conducted surveys among key stakeholder categories to evaluate their perceptions, effectiveness, and the most productive formats of distance learning. The findings challenge the notion that distance education is only suitable for extreme conditions. Key educational process participants, especially in fields like "Journalism," view well-organized distance education as comparable to traditional and extramural learning methods. It enhances the computer technology skills of both teachers and students, proves to be the most inclusive educational format, lessens financial burdens, broadens professional development opportunities, aids in the internationalization of education, and serves as a marketing tool for attracting prospective students. However, the study also reveals an inconsistency between student and faculty expectations regarding remote communication formats and the practical ability of specialists to meet these demands

Enhancing Professional Competence of Future Vocal Teachers through Analyzing Current Music Culture: the Neuroaesthetic Outlook

The article attempts to comprehend the latest achievements in such a field of neuroscience as neuroaesthetics, which analyzes the nature of music and musical creativity through the prism of ontogenetic features of the human brain. Using numerous examples it is shown that the key ideas of neuroaesthetics in general correspond to the spirit of Kantian a prioriism, reinterpreted in current terms of cognitive neuroscience; an attempt is made to justify the necessity of increased attention to the urgency of updating the professional training of vocal teachers, revealed the ideal structure of the competence of a vocal coach on the basis of systematized by him views of different experts, as well as proposed to make individual principled emphasis on a comprehensive study of trends in current musical culture by students; as a conscious and purposeful familiarization with such, in his view, is an essential element in the system of today's professional competence. The personal and professional characteristics that every future vocal coach should possess are revealed in great detail; the special importance of each of these components of success in competing in the pedagogical labor market is emphasized.In addition, key features of the dissemination of musical information in today's society, the impact of network technologies on the specialized training of teachers and recipients, the formation of the technological basis of vocal and sound culture aesthetics of academic singing of the future teacher are highlighted. As a conclusion, further, more in-depth study of the raised problems is proposed, since it is not sufficiently developed at the scientific level.</p

Subclinical Hypothyroidism after Radioiodine Exposure: Ukrainian–American Cohort Study of Thyroid Cancer and Other Thyroid Diseases after the Chornobyl Accident (1998–2000)

BackgroundHypothyroidism is the most common thyroid abnormality in patients treated with high doses of iodine-131 (131I). Data on risk of hypothyroidism from low to moderate 131I thyroid doses are limited and inconsistent.ObjectiveThis study was conducted to quantify the risk of hypothyroidism prevalence in relation to 131I doses received because of the Chornobyl accident.MethodsThis is a cross-sectional (1998-2000) screening study of thyroid diseases in a cohort of 11,853 individuals &lt; 18 years of age at the time of the accident, with individual thyroid radioactivity measurements taken within 2 months of the accident. We measured thyroid-stimulating hormone (TSH), free thyroxine, and antibodies to thyroid peroxidase (ATPO) in serum.ResultsMean age at examination of the analysis cohort was 21.6 years (range, 12.2-32.5 years), with 49% females. Mean 131I thyroid dose was 0.79 Gy (range, 0-40.7 Gy). There were 719 cases with hypothyroidism (TSH &gt; 4 mIU/L), including 14 with overt hypothyroidism. We found a significant, small association between (131)I thyroid doses and prevalent hypothyroidism, with the excess odds ratio (EOR) per gray of 0.10 (95% confidence interval, 0.03-0.21). EOR per gray was higher in individuals with ATPO &lt; or = 60 U/mL compared with individuals with ATPO &gt; 60 U/mL (p &lt; 0.001).ConclusionsThis is the first study to find a significant relationship between prevalence of hypothyroidism and individual (131)I thyroid doses due to environmental exposure. The radiation increase in hypothyroidism was small (10% per Gy) and limited largely to subclinical hypothyroidism. Prospective data are needed to evaluate the dynamics of radiation-related hypothyroidism and clarify the role of antithyroid antibodies

A Tool for Removing Metal Inclusions from the Surface of Paint and Varnish Car Coatings

In this article, we presents the synthesis and research of a tool for removing metal inclusions from the surface of car paint coatings. The optimal composition of the product was determined, which includes sodium laureth sulfate, citric acid, sulfosalicylic acid, hydrogen peroxide and water. As a result of the conducted studies, a connection was established between the composition and the physicochemical, surface-active properties of the developed agent. Approbation of this tool was carried out, which confirmed its effectiveness and showed that within 30&ndash;45 s after applying the developed tool, not only are metal inclusions on the surface of car paint coating removed but also mineral contaminants in the form of sand, earth, clay and other particles. The aim of the work was to develop and optimize a method for obtaining a low-toxicity, highly effective agent for removing metal inclusions from the surface of car paint coatings and to investigate its effectiveness, as well as its physicochemical, optical and surface-active properties

Histopathological features of papillary thyroid carcinomas detected during four screening examinations of a Ukrainian-American cohort.

BackgroundThere are limited data on the histopathology of papillary thyroid carcinomas (PTCs) diagnosed in irradiated populations. We evaluated the associations between iodine-131 dose and the histopathological characteristics of post-Chernobyl PTCs, the changes in these characteristics over time, and their associations with selected somatic mutations.MethodsThis study included 115 PTCs diagnosed in a Ukrainian-American cohort (n=13,243) during prescreening and four successive thyroid screenings. Of these PTCs, 65 were subjected to somatic mutation profiling. All individuals were &lt;18 years at the time of the Chernobyl accident and had direct thyroid radioactivity measurements. Statistical analyses included multivariate linear and logistic regression.ResultsWe identified a borderline significant linear-quadratic association (P=0.063) between iodine-131 dose and overall tumour invasiveness (presence of extrathyroidal extension, lymphatic/vascular invasion, and regional or distant metastases). Irrespective of dose, tumours with chromosomal rearrangements were more likely to have lymphatic/vascular invasion than tumours without chromosomal rearrangements (P=0.020) or tumours with BRAF or RAS point mutations (P=0.008). Controlling for age, there were significant time trends in decreasing tumour size (P&lt;0.001), the extent of lymphatic/vascular invasion (P=0.005), and overall invasiveness (P=0.026).ConclusionsWe determined that the invasive properties of PTCs that develop in iodine-131-exposed children may be associated with radiation dose. In addition, based on a subset of cases, tumours with chromosomal rearrangements appear to have a more invasive phenotype. The increase in small, less invasive PTCs over time is a consequence of repeated screening examinations

Histopathological features of papillary thyroid carcinomas detected during four screening examinations of a Ukrainian-American cohort

BACKGROUND: There are limited data on the histopathology of papillary thyroid carcinomas (PTCs) diagnosed in irradiated populations. We evaluated the associations between iodine-131 dose and the histopathological characteristics of post-Chernobyl PTCs, the changes in these characteristics over time, and their associations with selected somatic mutations. METHODS: This study included 115 PTCs diagnosed in a Ukrainian-American cohort (n=13 243) during prescreening and four successive thyroid screenings. Of these PTCs, 65 were subjected to somatic mutation profiling. All individuals were <18 years at the time of the Chernobyl accident and had direct thyroid radioactivity measurements. Statistical analyses included multivariate linear and logistic regression. RESULTS: We identified a borderline significant linear-quadratic association (P=0.063) between iodine-131 dose and overall tumour invasiveness (presence of extrathyroidal extension, lymphatic/vascular invasion, and regional or distant metastases). Irrespective of dose, tumours with chromosomal rearrangements were more likely to have lymphatic/vascular invasion than tumours without chromosomal rearrangements (P=0.020) or tumours with BRAF or RAS point mutations (P=0.008). Controlling for age, there were significant time trends in decreasing tumour size (P<0.001), the extent of lymphatic/vascular invasion (P=0.005), and overall invasiveness (P=0.026). CONCLUSIONS: We determined that the invasive properties of PTCs that develop in iodine-131-exposed children may be associated with radiation dose. In addition, based on a subset of cases, tumours with chromosomal rearrangements appear to have a more invasive phenotype. The increase in small, less invasive PTCs over time is a consequence of repeated screening examinations