Chocolate toothpaste for a sweet tooth

What do we mean saying ―a beautiful smile‖? Well, first of all, it is a sincere smile. What makes it beautiful? – White and healthy teeth. The most important helper for us is a toothbrush. A toothbrush is used with a toothpaste, and the choice of it is rather important, too. As a rule, toothpaste contains various antimicrobial, deodorizing, bleaching, medical and other components. The main task of paste is to clean, fresh your mouth, make brushing more enjoyable, to keep gums healthy, to prevent the development of cavities and whiten our teeth

The European structure of digital competences in Ukrainian society: challenges and innovations

Digital competences in education not only improve the learning process, but also stimulate changes in the pedagogical process on the path of informatization of Ukrainian education and society as a whole and directly affect the reduction of the «digital divide». In recent years, the position of information and communication technologies (ICT) in Ukrainian society and education has strengthened. In addition to ICT infrastructure, digital content creation and teacher training initiatives, recent curriculum reforms support the use of digital technologies in many subjects. In order for citizens to improve their digital competence, the European Commission has proposed a tool known as The European Digital Competence Framework (DigComp). In this article, we analyze a number of concepts and approaches related to the European structure of digital competences in Ukrainian society and related with it the projects and initiatives of the Ministry of Education and Science of Ukraine on several educational, cultural and disciplinary grounds

Chocolate toothpaste for a sweet tooth

What do we mean saying ―a beautiful smile‖? Well, first of all, it is a sincere smile. What makes it beautiful? – White and healthy teeth. The most important helper for us is a toothbrush. A toothbrush is used with a toothpaste, and the choice of it is rather important, too. As a rule, toothpaste contains various antimicrobial, deodorizing, bleaching, medical and other components. The main task of paste is to clean, fresh your mouth, make brushing more enjoyable, to keep gums healthy, to prevent the development of cavities and whiten our teeth

Electronical educational and methodological complexes as a means of forming the professional competence of future doctors when studying disciplines from natural sciences

The article examines the possibilities of electronical educational and methodological complexes for the formation of professional competence of masters of higher medical education institutions and assessment of their academic achievements. It is claimed that obtaining a quality education is inextricably linked to the use of digital information and communication technologies, connected with the ability of students to understand electronic materials presented in the form of texts, graphs and tables, and to independently master theoretical material. Emphasis is placed on the tendency to use professionally oriented materials as a source of knowledge. The article presents the results of research into the forms and methods of effective implementation of electronical educational and methodical complexes on the Moodle platform among students which are studying at the Kharkiv National Medical University on the example of the academic discipline Medical and Biological Physics. The advantages and disadvantages of using electronic educational and methodological complexes in higher educational institutions are discussed

Strategy for the development of digital competence in the national education system of Ukrainian socety

The article examines the issue of the strategy for the development of digital competence in the national education system of Ukrainian society under the influence of intensive development of ICT and in the context of practical recommendations provided by UNESCO regarding the structure of ICT competence of teachers. It was determined that there is no uniform policy of ICT education transformation in public institutions of Ukraine and there are no ICT standards - competences of participants in the educational process. The conceptual vision of informatization of the national education system of Ukraine is described, in the context of strengthening the role of digital competences and technologies. A comparative analysis of the large-scale informatization of the global education system, which led to the emergence of new methods and forms of education, was carried out. It is emphasized that the national education system of Ukraine is slowly introducing new methods and forms of education, which leads to a decrease in the competitiveness of Ukrainian education in the globalized educational space, and as a result leads to a decrease in the country's competitiveness in socio-economic and scientific and technical progress as a whole

Education of students in higher educational medical universities of Ukraine taking into account competence-oriented educational technologies

A higher educational institution is called upon to contribute to a constant increase in the degree of development and readiness of students for self-educational activities on a proactive basis. The features of training and formation of competences among medical students in the general theoretical aspect are considered as a fundamental condition for the successful implementation of future professional activities, which provides the ability to quickly and correctly use knowledge, experience, and personal qualities, ensures their control and restructuring of activities when obstacles appear. The development of the proposed theoretical and practical material in medical universities is of a general nature, including and substantiating the goal, objectives and structure of the formation of the personality of a future professional. The application of the competence-based approach and the practical orientation of training in higher educational medical institutions of Ukraine are designed to form student’s not only preliminary, but also situational readiness. In the context of considering competence-oriented educational technologies in higher educational universities of Ukraine, including pedagogical and educational technologies, is the readiness of future specialists for productive independent and responsible action in professional activities and everyday life. The teachers of medical universities are obliged to ensure the achievement of this result using a complex integral image of the final result of education at the university in the direction of training (specialty), which is based on the concept of “competence”

Development of modern nanotecnologies and combined biotoxicity problems

Fast progress in modern nanotechnologies based on use of nanoparticles, nanofibers and nanotubes with different composition, shape and size allows elaboration of materials with superhigh strength, thermal and electric conductivity, acoustical and optical properties. Those materials are already widely used in industry, transportation, aerospace, marine and civil engineering, food processing and medicine. Some examples of nanoreinforces composites, superhydrophobic self-cleaning surfaces, nanodyes and suspensions of nanoparticles are described. The problem of uncontrolled accumulation of some types of nanoparticles in our cells and tissues is discussed within the concept of nanotoxicity. Since the history of permanent observation of human health in connection with nanodust accumulation in the atmosphere, waters and soils is not enough long, the detailed evidences must be documented, systematized and discussed. In this study a brief systematic review of literature on the biotoxicity problems caused by modern nanotechnologies is given. Production of the nanoparticles, nanofibers and nanotubes for industry, transportation, food processing, as well as utilization of the used materials which properties were modified by the nanotechnologies leads to permanent rise of the nanodust in the atmosphere, soils, river waters, lakes and the sea bottom. Their uncontrolled interaction with flora and fauna could be catastrophic for human health and life on the Earth. Promising ways for the problem solution and perspectives are discussed. Some own results on the protective action of nanodiamonds, silver and some other nanoparticles are presented. A vital necessity of an open access database on known types of nanoparticles, their use in the materials and documented influence of health of animals and humans is discusse

Реологічні моделі біологічних клітин

The most important experimental methods of studying the mechanical properties of cells, as well as the most common rheological models, among which the discrete models of the micro/nanostructure of the cell and continuous models that allow calculating the modulus of elasticity and viscosity of the cell in normal and pathological conditions are discussed. A review of continuous models is given with an indication of their features and differences. A new continuum model of the cell as a multi-layer shell filled with a viscoelastic fluid is proposed. Equations of the model and their solutions for cases of isotonic, isometric and dynamic experiments are obtained. Peculiarities of the mechanical behavior of the models depending on the identified parameters are investigated. A comparison with the data of experimental measurements is given. It is shown that the proposed multi-layer model allows evaluation of separate contribution of the mechanical properties of the cytoskeleton, membrane, adsorbed substances and the hydrated shell, which is important for clinical diagnosis of diseases by measuring the mechanical parameters of cells. Pages of the article in the issue: 37 - 41 Language of the article: UkrainianУ роботі наведений перелік найбільш важливих експериментальних методів дослідження механічних властивостей клітин, а також найбільш поширених реологічних моделей, серед яких є дискретні моделі мікро/наноструктури клітини і континуальні моделі, які дозволяють обчислити модулі пружності і в’язкості клітини в нормі і патології. Наведений перелік континуальних моделей із зазначенням їх особливостей і відрізнень. Запропонована нова континуальна модель клітини як багатошарової оболонки, яка заповнена в’язкопружною рідиною. Отримані рівняння моделі і її розв’язки для випадків ізотонічного, ізометричного і динамічного експериментів. Досліджені особливості механічної поведінки моделей в залежності від ідентифікованих параметрів. Проведено порівняння з даними експериментальних вимірювань. Показано, що запропонована багатошарова модель дозволяє оцінювати окремий вклад механічних властивостей цитоскелету, мембрани, адсорбованих речовин і гідратної оболонки, що важливо для клінічної діагностики захворювань шляхом вимірювань механічних властивостей клітин

Modeling of blood cell surface oscillations as fluid-filled multilayer viscoelastic shells

Rheological properties of the red blood cells (RBC) determine their movement in the larger and smaller blood vessels, oxygen and carbon dioxide delivery to/from the cells. Those properties vary significantly with age and health state of an organism. In this paper a new rheological model of RBC as a thin multilayer shell, which includes the cytoskeleton, lipid bilayer, glycocalyx, and hydrate shell as Maxwell's viscoelastic bodies is proposed. Mechanical properties of the rheological model in isotonic, isometric and dynamic experiments are studied. The oscillations of the surfaces of erythrocytes or other cells in the approximation of multilayer viscoelastic shell filled with a viscous fluid are investigated. The expressions for the dynamic Young’s modules and viscosity/fluidity coefficients as functions of the viscoelastic and geometric parameters of the layers are obtained. The problem of propagation of small perturbations along the cell surface is considered. The solutions of the problem in the form of Young and Lamé waves are obtained. The method of identification of the erythrocyte parameters from the experimental measurements of the wave propagation on the basis of the developed mathematical model for the purposes of clinical diagnostics of diseases with use of a microdrop of blood of the patient is proposed. Pages of the article in the issue: 40 - 43 Language of the article: Ukrainia