On the Character of Growth of a Non-Contracting Semigroup

2000 Mathematics Subject Classification: 47A45.An estimation of the growth of a non-contracting semigroup Zt = exp(itA) where A is a non-dissipative operator with a two-dimensional imaginary component is given. Estimation is given in terms of the functional model in de Branges space

Neurosurgical anatomy of the insula and Sylvian fissure in gliomas: literature data and own experience. The first report. Arteries

Insular gliomas account for 25 % of all low-grade and 10 % of all high-grade gliomas. This complex neural and vascular anatomy of the insula and subinsular areas and the attendant risk of postoperative neurological deficit render resection of insular gliomas challenging. Postoperative morbidity can result from injury to these arteries. The cortex and adjacent subcortical structures of the insula are supplied with blood from the cortical insular perforating arteries and lenticulostriate arteries. The source of both types of arteries is the middle cerebral artery. To preserve these vessels, it is necessary to take into account their location while performing approach and tumor debulking.The presurgical planning is extremely important for insular glioma surgery, which allows predicting the extent of removal and to assess the risk of postoperative morbidity. The digital subtractive angiography, CT angiography, MRI angiography make a full picture of the tumor relationship with the lenticulostriate arteries while it is almost impossible to identify the tumor involvement of the insular arteries.The aim of insular glioma surgery is to achieve total removal while preserving critical arteries. This goal is complicated both by a small diameter of lenticulostriate and insular arteries, which intraoperatively complicates their identification and their involvement in tumor tissue. The intraoperative neuroimaging, neuronavigation, intraoperative neuromonitoring can help guide the extent of resection and prevent or minimize postoperative morbidity. However, these advanced technologies are often insufficient without a comprehensive understanding of the insular functional and vascular anatomy

Use of algorithm of the prevention complex of inflammatory processes in the oral cavity in metabolic syndrome

The aim of the work was to evaluate in the experiment the effectiveness of the developed treatment-and-prophylactic complex for the prevention of periodontal tissue disorders under metabolic syndrome simulation. Materials and methods. The study of biochemical and immunological changes in the blood serum, liver and gingival tissue was performed during simulation on the metabolic syndrome of alimentary genesis on Wistar rats, all animals were divided into 5 groups: 1) intact; 2) with simulated metabolic syndrome; 3) in a week after the start of MS simulation 5 times a week in the morning perorally administered a “Capillaroprotect” aqueous solution (bioflavonoid, antioxidant) produced by “Ekosvit Oil” (Ukraine) at a rate of 135 mg/kg; 4) under similar conditions receiving the preparation based on the dihydroquercetin were locally applied on gums a new dental elixir based on bee products and adaptogens of plant origin by 0,5 ml/rat with a tampon, which has held for 5–7 minutes; 5) during MS simulation from the second week were used the preparation based on the dihydroquercetin, the dental elixir topically on gums and physiotherapy. Results. Under conditions of experimental MS simulation with a diet rich in saturated fats and carbohydrate there are systemic disorders in the body: reduced nonspecific antimicrobial protection, increased microbial contamination, intensification of lipid peroxidation, the development of inflammation and hepatotoxicity. Prophylactic administration of the proposed dihydroquercetin preparation to animals in the process of simulation of MS significantly inhibits the established disorders, positively affecting the biochemical parameters of the blood serum, liver tissue, periodontium, reducing triglycerides, total cholesterol, glucose level, restoring the state of non-specific resistance, lipid metabolism, preventing inflammation and hepatosis, as well as contamination with pathogenic microflora. Conclusion. The proposed treatment-and-prophylactic complex, which includes the dihydroquercetin preparation, used per os in combination with local therapy of periodontal tissues with a tooth elixir based on propolis and biologically active substances of plant origin adaptogens with ultraphonophoresis under induced metabolic syndrome significantly removed the negative effects of its most important component

Класифікація нерухомого майна за правом Російської імперії XIX - початку XX ст.

Розуменко І. В. Класифікація нерухомого майна за правом Російської імперії XIX - початку XX ст. / І. В. Розуменко // Правове життя сучасної України : матеріали Міжнар. наук. конф. проф.-викл. та аспірант. складу (м. Одеса, 16-17 травня 2013 р.) / відп. за вип. В. М. Дрьомін ; НУ "ОЮА". Півд. регіон. центр НАПрН України. - Одеса : Фенікс, 2013. - Т. 1. - С. 178-180

Effects of the super-powerful tropospheric western Pacific phenomenon of September–October 2018 on the ionosphere over China: results from oblique sounding

Doppler measurements at oblique propagation paths from the city of Harbin, the People's Republic of China (PRC), to 10 high-frequency (HF) radio broadcast stations in the PRC, Japan, Mongolia, and the Republic of Korea captured the response in the ionosphere to the activity of the super typhoon, Typhoon Kong-rey, from 30 September to 6 October 2018. The Harbin Engineering University coherent software-defined radio system generates the database containing the complex amplitudes of the radio signals that have been acquired along 14 propagation paths since 2018. The complex amplitudes are used for calculating the temporal dependences of the Doppler spectra and signal amplitudes, and the Doppler spectra are used to plot the Doppler shift as a function of time, fD(t), for all rays. The scientific objectives of this study are to reveal the possible perturbations caused by the activity of Typhoon Kong-rey and to estimate the magnitudes of wave parameters of the ionospheric plasma and radio signals. The amplitudes, fDa, of the Doppler shift variations were observed to noticeably increase (factor of ∼2–3) on 1–2 and 5–6 October 2018, while the 20–120 min periods, T, of the Doppler shift variations suggest that the wavelike disturbances in the ionosphere are caused by atmospheric gravity waves. The periods and amplitudes of quasi-sinusoidal variations in the Doppler shift, which have been determined for all propagation paths, may be used to estimate the amplitudes, δNa, of quasi-sinusoidal variations in the electron density. Thus, T≈20 min and fDa≈0.1 Hz yield δNa≈0.4 %, whereas T≈30 min and fDa≈0.2 Hz give δNa≈1.2 %. If T≈60 min and fDa≈0.5 Hz, then δNa≈6 %. The periods T are found to change within the 15–120 min limits, and the Doppler shift amplitudes, fDa, show variability within the 0.05–0.4 Hz limits.</p

Modern surgical technologies management of malignant brain gliomas

The authors presented the review of effective methods of preoperative multimodal neuroimaging, innovative navigation and laser technologies for targeted controlled resection of brain tumors. The issues of modern requirements for surgical treatment of malignant brain gliomas were considered. The advantages of clinical application of individualized treatment strategy to ensure the effectiveness of neurosurgical interventions in brain gliomas and prospects for further development of surgical technologies in neuro-oncology were also described

Застосування мультимодальної нейронавігації в хірургії пухлин головного мозку

The experience of multimodal neuronavigation using at patients with brain tumors surgical treatment is presented. Multimodal neuronavigation allows simultaneous using of different neuroiradiological methods’ data for surgical intervention planning before operation and intraoperative orientation at brain tumors resection. The use of neuronavigation in neurooncology allows to improve tumor resection, to avoid damage of functionally important brain areas, and to reduce the risk of postoperative neurological deficit.Приведен опыт применения мультимодальной нейронавигации при хирургическом лечении больных с опухолями головного мозга. Мультимодальная нейронавигация позволяет одномоментно использовать данные различных методов нейровизуализации для дооперационного планирования хирургического вмешательства и интраоперационной ориентации при удалении опухолей головного мозга. Применение нейронавигации в нейроонкологии способствует повышению радикальности хирургического вмешательства, позволяет избежать повреждения функционально важных структур головного мозга, обеспечивает снижение риска возникновения послеоперационного неврологического дефицита.Наведений досвід застосування мультимодальної нейронавігації при хірургічному лікуванні хворих з пухлинами головного мозку. Мультимодальна нейронавігація дозволяє одномоментно використовувати дані різних методів нейровізуалізації для доопераційного планування хірургічного втручання та інтраопераційної орієнтації під час видалення пухлин головного мозку. Застосування нейронавігації в нейроонкології сприяє підвищенню радикальності хірургічного втручання, дозволяє уникнути пошкодження функціонально важливих структур головного мозку, забезпечує зниження ризику виникнення неврологічного дефіциту

Dental status changes in patients with ischemic heart disease and the ways of its normalization

Aim: increasing the effectiveness of treatment of periodontal disease in patients with ischemic heart disease Materials and methods. The oral cavity was examined and the clinical course features of chronic periodontitis were studied in patients with ischemic heart disease Determing dental, hygienic index and biochemical indices in oral liquid (elastase, MDA, urease, lysozyme, catalase). The “Apifil” and “Asepta” were used by oral rinsing. Results. The patients with ischemic heart disease have a worse state of oral cavity, compared to those who do not suffer from ischemic heart disease. The determined periodontal indexs provided evidence of a significantly higher activity of the dystrophic and inflammatory changes of periodontal tissues in the patients with ischemic heart disease. The oral cavity liquid levels of elastase, urease were raised, but levels of catalase and lusozyme were reduced in patients with ischemic heart disease Oral rinsing of “Apifil” and “Asepta” were reduced the levels of elastase, urease and dental indices but were raised the levels of lysozyme and catalase. Conclusions. The rinse “Apifil” render the stomatoprotective action on patients with ischemic heart disease