Investigation of the influence of the nucleon pairing force on the octupole deformation of uranium and thorium isotopes in the mean-field approximation

In the Hartree-Fock-Bogolyubov approximation and the axial symmetry of nuclei with Skyrm forces SkM∗, the properties of U with A = 220 – 232 and Th with A = 218 – 230 isotopes were calculated. In addition, the properties of U and Th near the neutron drip line A = 280 – 292 were calculated. Pairing of nucleons in nuclei is described by pairing forces of zero radius of action of a mixed type with different sets of pairing force constants. In our calculations, we used constrained conditions on the parameters of quadrupole β₂ and octupole β₃ deformations of nuclei. It is shown that for the considered U isotopes, as well as Th isotopes, the deformation of the β₃ nuclei strongly depends on the choice of the parameters of the nucleon pairing force.У наближенні Хартрі-Фока-Боголюбова та аксіальної симетрії ядер із силами Скірма SkM∗ проведено розрахунки властивостей ізотопів U з A = 220 – 232 і Th з A = 218 – 230. Додатково проведені розрахунки властивостей U і Th біля границі нейтронної стабільності A = 280 – 292. Спарювання нуклонів у ядрах описується силами спарювання нульового радіуса дії змішаного типу з різними наборами констант сил спарювання. У розрахунках використовувалися накладені умови на параметри квадрупольної β₂ і октупольної β₃ деформацій ядер. Показано, що для розглянутих ізотопів U, як і ізотопів Th, деформація ядер β₃ сильно залежить від вибору параметрів сили спарювання нуклонів

Recent hydrothermal systems of Kamchatka

Study of the largest manifestations of the recent hydrothermal activity in Uzon-Semyachik, Pauzhetka-Kambalny and other regions in Kamchatka enable us to conclude: in the area of recent volcanism characterized by a general increase of conductive heat flow, some regions can be distinguished with an especially intense geothermal regime specified by an additional supply of heat by deep fluids. Within such anomalies the formation of hydrothermal systems can be observed. Recent hydrothermal systems of Kamchatka are natural hydrodynamic systems belonging to the type of small artesian basins and artesian slopes having porous-bedded, fissure-bedded and more seldom fissure-veined permeability and containing high-temperature underground waters. They are associated with volcano-tectonic grabens and circular depressions filled with a series of tufaceous material of mainly acid composition and two-membered structure. Localization of certain thermal manifestations within the systems is determined by disjunctive tectonics and outflows of thermal waters to the surface. The same factors are responsible for the position of the recharge areas of the systems with infiltration waters forming the main mass of their water reserves. Usual hydrodynamic methods can be used for a quantitative estimation of these reserves. Heat recharge of the systems is realized by the supply of an over-critical fluid. This is confirmed by hydrogeothermal data, similarity of the chemical composition of high temperature hydrothermal water and their thermo-physical parameters. Manifestations of hydrothermal activity do not reveal any connection with recent andesite-basaltic volcanism of Kamchatka; on the contrary, they are associated with the acid volcanism of the Middle and Upper Pleistocene stage of its geological history, testifying to their genetic similarity. Hydrothermal activity is one of the manifestations of the general geothermal activity of the interior. It is closely related, in time and space, to a certain stage of the volcano-plutonic process and tectonic evolution of mobile belts. The perspectives of obtaining heat and electric energy from hydrothermal systems are considered

The dynamics of element content in patients with lung cancer during radiotherapy

Determination of the element contents in the biological samples (blood, serum of blood, hair) of patients with the diagnosis of lung cancer III degree is carried out during beam therapy. The method of PIXE excited by protons on the accelerator with energy 3 MeV has been used. During radiotherapy the difference in the element contents in hair of patients has not been detected. Trustworthy reduction of Fe, Cu, Mn, Ca, Sr, Rb etc is marked during treatment. The obtained results can be used as the additional test at carrying out adequate treatment in radiotherapy.Проведено визначення вмiсту мiкроелементiв в бiологiчних зразках (кров, сироватка кровi, волосся) пацiєнтiв з дiагнозом раку легенi III ступеня в процесi променевої терапiї. Використовувався метод характеристичного рентгенiвського випромiнювання, яке збуджувалось протонами прискорювача з енергiєю 3 МеВ. Протягом радiотерапiї вiдмiнностей у вмiстi елементiв у волоссях пацiєнтiв виявлено не було. У процесi лiкування вiрогiдно виявлене зменшення Fe, Cu, Mn, Ca, Sr, Rb i т.д. в кровi i сироватцi кровi. Отриманi результати можуть бути використанi як додатковий тест при проведеннi адекватної терапiї в курсi променевого лiкування.Проведено определение содержания микроэлементов в биологических образцах (кровь, сыворотка крови, волосы) пациентов с диагнозом рака легкого III степени в процессе лучевой терапии. Использован метод характеристического рентгеновского излучения, возбуждаемого протонами на ускорителе с энергией 3 МэВ. В течение радиотерапии отличий в содержании элементов в волосах пациентов обнаружено не было. В процессе лечения достоверно обнаружено уменьшение Fe, Cu, Mn, Ca, Sr, Rb и т.д. в крови и сыворотке крови. Полученные результаты могут быть использованы в качестве дополнительного теста при проведении адекватной терапии в курсе лучевого лечения

Financial Stability: Modeling the Russian Budgetary and Tax Policy with Fiscal Multipliers' Attraction

The chapter contains a methodology for formalized evaluation of the public fiscal policy from the view point of its impact on the financial stability of a national economy using the example of the Russian Federation and taking into account the fiscal multipliers' effects. The significance of this problem is predetermined by recent trends in Russia's development, when the national economy legs twice behind the world indicators. Taking into account the importance of the Russian budget system as a mechanism for the redistribution of gross domestic product (GDP), the financial stability safeguarding has been connected with the public finance sustainability and with the federal budget revenues and expenditures equilibrium. There are used the methodology of analysis of economic systems' dynamic factors of financial stability as well as fiscal multipliers' effects, aiming at managing national economy's long-term development with the ultimate purpose to maintain the GDP growth rates. Taking into account the fiscal multipliers' values, the model comparisons of the macroeconomics and budget parameters' dynamics prove the necessity of the budget consolidation policy in 2018-2020 provided that the budget expenditures efficiency increases. The latter has been proved by modeling dependences represented by the fiscal multipliers' effects in terms of national financial stability

Wasting syndrome in HIV-infected patients

The review of literature analyzes scientific data on wasting syndrome in HIV-infected patients. It considers its etiology, diagnosis, and therapeutic approaches

'Financial stability' safeguarding: Modelling the Russian budgetary policy

This article represents the attempt to formalise evaluation of the public fiscal policy impact on the financial stability of Russian economy. The problem of the direct relationship between financial stability as a kind of public goods and budgetary consolidation in connection with safeguarding it by the government has not been solved. The case of Russia has been taken because its economic dynamics leg twice behind the world economy with its 2.5-3%' growth rates in the short term and the western sanctions against the Russian Federation objectively put forward the necessity for researchers and politicians to investigate the problem of financial stability safeguarding of the country, isolated from the global division of labour. In this case the Russian budgetary and tax policy' modelling turns out to be very promising for fiscal policy-making as to its impact' evaluation on financial stability safeguarding. To reinforce the findings, some results associated with other theoretical investigations and analytical researches are presented. © 2019 Inderscience Enterprises Ltd

Wasting syndrome in HIV-infected patients

The review of literature analyzes scientific data on wasting syndrome in HIV-infected patients. It considers its etiology, diagnosis, and therapeutic approaches

Assessment of actual nutrition and body composition in patients with HIV infection

The objective. To study actual nutrition and body composition of HIV-infected patients for detailed elaboration of changes in their nutritional status. Patients and methods. The study included 45 patients with HIV infection (29 men and 16 women). The mean age was 28.6 years. In the group of study, patients at stages 3 and 4A prevailed (67%). The control group comprised 19 practically healthy individuals aged 21 to 44 years, 11 men and 8 women. During a patient's visit his or her actual nutrition in home settings was investigated by the method of frequency analysis using the questionnaire design according to the computer programme «Analysis of the state of human nutrition» (version 1.2 GU Nutrition Institute RAMS, 2003-2005) and body composition was assessed by bioelectrical impedance analysis according to standard methods using a human body composition analyzer (InBody 720, Korea). Results. As has been found, 43 individuals (96%) had normal body weight (BMI from 18.5 to 24.9 kg/m2), one patient (2%) was overweight (BMI from 25.0 to 29.9 kg/m2), one patient (2%) was underweight (BMI under 18.5 kg/m2) with signs of lipodystrophy. Analysis of actual nutrition of HIV-infected individuals has shown that patients do not receive carbohydrates in recommended amounts: mean value is 207 g/day for men and 160 g/day for women (while 260-500 and 225-400 g/day, respectively, are recommended), which might lead to enhanced metabolism and worsened assimilation of such macronutrients as fats and proteins and have a negative effect on energy metabolism and synthesis of the components of the immune system. A daily intake contained a higher proportion of saturated fats (11% of caloric content) and insufficient amounts of products with monounsaturated fats (4.7% of caloric content), which enhances a risk for dyslipidemia and cardiovascular complications. Assessment of body composition parameters in patients with HIV infection has shown a significant decrease of fat mass, normal values of skeletal muscle mass, normal values of total water and mineral substances. Conclusion. The above disorders necessitate modification of actual nutrition of patients with HIV infection and development of specialised diets for this cohort of patients

Decoders configurations based on Unet family and feature pyramid network for COVID-19 segmentation on CT images

Coronavirus Disease 2019 (COVID-19) pandemic has been ferociously destroying global health and economics. According to World Health Organisation (WHO), until May 2021, more than one hundred million infected cases and 3.2 million deaths have been reported in over 200 countries. Unfortunately, the numbers are still on the rise. Therefore, scientists are making a significant effort in researching accurate, efficient diagnoses. Several studies advocating artificial intelligence proposed COVID diagnosis methods on lung images with high accuracy. Furthermore, some affected areas in the lung images can be detected accurately by segmentation methods. This work has considered state-of-the-art Convolutional Neural Network architectures, combined with the Unet family and Feature Pyramid Network (FPN) for COVID segmentation tasks on Computed Tomography (CT) scanner samples the Italian Society of Medical and Interventional Radiology dataset. The experiments show that the decoder-based Unet family has reached the best (a mean Intersection Over Union (mIoU) of 0.9234, 0.9032 in dice score, and a recall of 0.9349) with a combination between SE ResNeXt and Unet++. The decoder with the Unet family obtained better COVID segmentation performance in comparison with Feature Pyramid Network. Furthermore, the proposed method outperforms recent segmentation state-of-the-art approaches such as the SegNet-based network, ADID-UNET, and A-SegNet + FTL. Therefore, it is expected to provide good segmentation visualizations of medical images