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Для оценки вероятности утечки полномочий в ролевой политике разграничения доступа введено понятие «уровень критичности полномочия». Сформулированы постулаты, определяющие зависимость уровней критичности полномочий от структуры ролевой иерархии. Предложена методика (метод и алгоритм) автоматического расчёта уровней критичности полномочий, использующая метод анализа иерархий. Проведён вычислительный эксперимент, выявляющий зависимость уровня критичности полномочия от настраиваемого параметра алгоритма. Настраиваемый параметр позволяет регулировать влияние постулатов на результаты вычислений., The term ”severity level of permissions” is introduced for the probability estimation of the permissions leakage in the rolebased access control policy. The postulates which define the dependence of severity levels of permissions on the structure of the role hierarchy are formulated. The technique (method and algorithm) of automatic calculation of severity levels of permissions is suggested, using analytic hierarchy process. The computing experiment which reveals the dependence of severity level of permission on the algorithm’s parameter is made. The algorithm’s parameter allows regulating the influence of postulates on results of calculations., №1(49) (2019)

Background. The theoretical basis of osteoplasty, fully supported by clinical observations, is that violations occur in periodontitis of correlation between tooth and the surrounding tissues, including the microcirculation. However, complex morphological and clinical analysis of effectiveness of the material held EasyGraft was not. Objective. The aim was experimental evaluation of tissue alterations in bone implant materials Easy-Graft® and tricalcium phosphate®, as well as determining the life quality after use in the surgical treatment of patients with generalized periodontitis ІII severity level. Methods. The comparative analysis a quantitative morphological estimation of regenerative processes in osteal tissue in model of osteal defect is carried out at implantation of material EasyGraft and amorphous calcium phosphate at this work. It was investigated dynamics of life quality indicators at patients after used materials by specialised questionnaire OHІР-14 (Oral Health Impact Profile) during 1 year. Results and Conclusion. We found out that EasyGraft and amorphous calcium phosphate undergo resorbtion and thus optimize bone regeneration. Regeneration is accompanied by decreased specific area of the particles implanted and increased integration index and specific density of trabeculae within the reaction zone. Highest intensity of these processes was ob-served in the period from 15th fill the 30th day after implantation. EasyGraft is more preferable for implantation than amorphous calcium phosphate. Adapted Ukrainian language and Russian language version of the OHIP-14 questionnaire is valid and accurate tool for assessing the quality of life of patients with chronic generalized periodontitis by which demonstrated the influence of the intensity of inflammatory and destructive changes periodontal severity of the pathological process, the presence of complete occlusion and methods of correction applied to the subjective perception of quality of life. The use of material EasyGraft compared with tricalcium phosphate improves the life quality of patients by 18-22%. Citation: Dmitrieva EO. [Effectiveness of osteotropic materials in an experiment and data for evaluation of quality of life in patients with generalized periodontitis III severity level]. Morphologia. 2014;8(2):30-6. Ukrainian.

The aim of the study is to estimate a current state of iodine deficiency problem and necessity group (individual) iodine prophylaxis in adolescent living in iodine deficiency regions. Materials and methods. One-stage epidemiological survey was carried on in two cities: Smolensk and Kazan. There were examined 420 children at the age of 14–16 years. Research methods included: clinical survey, an estimation physical developments estimation (height and weight measurement), ultrasound examination of a thyroid, urinary iodine concentration(UI) measuring, analysis of thyrotropin (TSH) and thyroperoxidase autoantibody. The main results. Prevalence of a diffuse goiter in both regions was approximately equal and corresponded to mild iodine deficiency (10.5% in Smolensk and 8% in Kazan). At the same time, the mean of thyroid volume was significantly higher in a group of teenagers surveyed in Smolensk. Also we revealed that prevalence of nodule goiter is more frequent in Smolensk in than in Kazan. UI in schoolchildren in Smolensk corresponds to mild iodine deficiency (median UI is 61 μg/L). UI indicators in Kazan vice versa correspond to normal level of iodine consumption (median UI is 117.5 μg/L). Essential distinction of iodine sufficiency level has direct relation with iodine prophylactic measures in regions. Data in adolescents in Smolensk reveal insufficient iodine consumption and possible related risk of iodine deficiency disorders development. Conclusion. The obtained results show the necessity of group iodine prophylactic measures in adolescents who livein iodine deficiency regions with any severity level.