The Analysis and Prospects of Crediting of Small and Medium-Sized Business Entities

The article is aimed at identifying ways to improve the crediting process for small and medium-sized businesses in the current economic and political conditions in Ukraine. The status of crediting of the sector of small and medium-sized business is considered, a statistical data analysis is carried out and a forecast of their change up to 2022 year is made. Programs of crediting and supporting of small and medium-sized business are considered in comparison with similar programs of the neighboring countries. Ways and directions of achievement of rapid development in the crediting of small and medium-sized businesses by banks are identified. It is proved that to improve the status of crediting of this sphere, there is a need to support on the part of not only foreign countries, but also on the part of Ukraine, also recommendations are proposed to simplify the process of crediting small and medium-sized businesses. The prospect for further consideration of the topic of crediting of small and medium-sized businesses is to develop preferential programs for crediting enterprises by the State

Study on the process of Fe (III) oxide fluorination

The article deals with a fundamentally new fluoride technology for obtaining fluoride materials, provides data on the kinetics of the process of fluorination of Fe oxide with fluorine, fluoride and ammonium bifluoride. The physical and chemical properties of obtained fluorides are shown: a study of the elemental composition, grain-size composition using the method of scanning electron microscopy and laser diffraction

Study on the process of Fe (III) oxide fluorination

The article deals with a fundamentally new fluoride technology for obtaining fluoride materials, provides data on the kinetics of the process of fluorination of Fe oxide with fluorine, fluoride and ammonium bifluoride. The physical and chemical properties of obtained fluorides are shown: a study of the elemental composition, grain-size composition using the method of scanning electron microscopy and laser diffraction

Serum bone resorption markers and 25-hydroxyvitamin D level in women of the Trans-Baikal region of the Russian and Buryat nationalities

Osteoporosis (OP) is a metabolic bone disease, characterized by a decrease of bone mineral density, leading to the development of low-energy fractures. Serum pyridinoline (PYD) and C-terminal cross-linking telopeptide type I (β-CrossLaps) are among the specific markers of bone resorption. Vitamin D is involved in the metabolism of bone tissue, its deficiency accelerates the processes of bone tissue breakdown. Material and methods. 60 women with osteoporosis were studied (30 Russian and 30 Buryat nationalities) aged 50 to 80 years; the control group included 20 women (10 Russian and 10 Buryat nationalities). Serum bone resorption markers, namely pyridinoline and β-CrossLaps, 25-hydroxyvitamin D (25(OH)D) were measured using immunoassays. Results and discussion. The level of β-CrossLaps was higher and the content of 25(OH)D was lower in women with osteoporosis compared to the control group. There was a positive relationship between β-CrossLaps concentration and body mass index < 20 kg/cm2 , frequent falls, and a hip fracture, between the level of 25(OH)D and hereditary history of osteoporosis in Russian women. There was a positive relationship between Serum pyridinoline and smoking, between 25(OH)D and low physical activity, β-CrossLaps and the major osteoporotic fractures in Buryat women. It was found that the β-CrossLaps is an independent predictor of the development of fractures in Russian women (β = 0.678, p = 0.04). In Buryat women, independent predictors of fractures are pyridinoline (β = –0.38, p = 0.04) and β-CrossLaps (β = 0.671, p = 0.01). Conclusions. The systemic markers of bone resorption (pyridinoline, β-CrossLaps) and 25(OH)D can be used in the diagnosis of osteoporosis and fractures in residents of the Trans-Baikal Region in addition to risk factor assessment and bone mineral density measurement

Electrothermal Atomic Absorption Determination of Lead Soluble Forms Extracted by Phosphate Buffer Solution in Biological Samples

Для определения растворимых форм свинца в тканях органов лабораторных крыс при экзогенной интоксикации предложено экстракционное выделение фосфатным буферным раствором (ФБР) с последующим электротермическим атомно-абсорбционным определением. Предел обнаружения растворимых форм свинца составляет 0,03 мкг/г. Относительное стандартное отклонение при определении более 0,1 мкг/г не превышает 0,2To determine the lead soluble forms in laboratory rats tissues in exogenous intoxication experiment a procedure of phosphate buffer extraction (PBS) and electrothermal atomic-absorption determination has been proposed. The detection limit of the lead soluble forms is 0.03 mg/kg. The relative standard deviation in the samples with more than 0.1 mg/kg lead does not exceed 0.

Fluoride technology of obtaining REM magnetic alloys and master alloys

Rare earth permanent magnets (REPM) based on neodymium-Fe-boron system are the most promising, since they have the highest magnetic and satisfactory mechanical characteristics. The paper covers physical-chemical principles and shows the results of experimental studies of the process of obtaining REM alloys and master alloys using fundamentally new fluoride technology based on ladle calciothermal REM fluorides and Fe reduction

Fluoride technology of obtaining REM magnetic alloys and master alloys

Rare earth permanent magnets (REPM) based on neodymium-Fe-boron system are the most promising, since they have the highest magnetic and satisfactory mechanical characteristics. The paper covers physical-chemical principles and shows the results of experimental studies of the process of obtaining REM alloys and master alloys using fundamentally new fluoride technology based on ladle calciothermal REM fluorides and Fe reduction

Modeling of temperature fields in the working chamber of the process furnace for REE synthesis

The results of mathematical modeling of temperature fields in the working chamber of the process furnace for special purposes are shown. Studied laboratory furnace is test equipment, which is used for practicing the stages of the technological process of continuous solid-phase synthesis of nanopowders of various purpose, such as obtaining of luminophore powders with rare earth elements oxides in its composition. Mathematical model adequacy is tested empirically

Моделирование асфальтобетона методом дискретных элементов

The paper considers a mathematical model which is used to study a composite material similar in structure to asphalt concrete and it takes into account presence of solid particles of different sizes and a soft and plastic binder. The twodimensional method of discrete elements has been applied to investigate destruction of asphalt-concrete samples under uniaxial compression, tension during splitting and compression by the Marshall method. The numerical model takes into account presence of large particles of rubble, asphalt mastic filling rubble pores and sticky (capable of recovering after rupture) communication between rubble particles. The force interaction between various components of the asphalt concrete has been described with the help of elastic repulsion between rubble particles, friction force and force responsible for sticking of particles due to presence of a binder. This model gives a correct fracture pattern for uniaxial compression, stretching during splitting and compression according to the Marshall method and this pattern coincides with the real experiment. It is the correct picture of destruction for three different schemes of material loading which makes it possible to assess the adequacy of the mathematical model which has been used. Basic physico mechanical characteristics of the binder which determine strength and deformability of asphalt concrete have been established in the paper. It has been shown that for an adequate description of physico mechanical characteristics for asphalt concrete it is necessary to study and measure properties of an asphalt binder that is a mixture of bitumen and fine mineral filler which determines parameters of interaction between rubble particles. The numerical experiments serve as a basis and make it possible to propose new laboratory methods for testing a mixture of stone materials and organic binders which are much simpler and, therefore, cheaper than standard tests on asphalt concrete. In addition these tests will more accurately predict behavior of asphalt concrete in real conditions.В статье для исследования композиционного материала, похожего по строению на асфальтобетон, рассмотрена математическая модель, которая явно учитывает наличие твердых частиц разных размеров и мягкого и пластичного связующего. Методом дискретных элементов в двумерной постановке исследовано разрушение асфальтобетонных образцов при одноосном сжатии, растяжении при расколе и сжатии по методу Маршалла. Численная модель учитывает наличие крупных частиц щебня, асфальтовой мастики, заполняющей поры в щебне, и липкой (способной восстанавливаться после разрыва) связи между частицами щебня. Силовое взаимодействие между различными компонентами асфальтобетона описано с помощью упругого отталкивания между частицами щебня, силы трения и силы, отвечающей за прилипание частиц, ввиду наличия вяжущего. Эта модель дает правильную, совпадающую с реальным экспериментом картину разрушения для одноосного сжатия, растяжения при расколе и сжатия по методу Маршалла. Именно правильная картина разрушения для трех различных схем нагружения материала позволяет оценить адекватность использованной математической модели. Установлены основные физико-механические характеристики вяжущего, которые определяют прочность и деформативность асфальтобетона. Показано, что для адекватного описания физико-механических характеристик асфальтобетона необходимо изучать и измерять свойства асфальтовяжущего – смеси битума и мелкодисперсного минерального наполнителя, определяющего параметры взаимодействия между частицами щебня. На основании выполненных авторами численных экспериментов можно предложить новые лабораторные методы испытаний смеси каменных материалов и органических связующих, которые намного более просты и, следовательно, дешевы, чем стандартные испытания асфальтобетона. Кроме того, эти испытания будут точнее предсказывать поведение асфальтобетона в реальных условиях

Premenstrual syndrome - is it important for medical university students

This article presents an assessment of the frequency of occurrence of various PMS symptoms, the role of lifestyle and education in the university in the development of PMS symptoms in female students of the Ural State Medical University and their relationship to existing disordersВ данной статье представлена оценка частоты встречаемости различных симптомов ПМС, роль образа жизни и обучения в ВУЗе в развитии симптомов ПМС у студенток Уральского Государственного Медицинского Университета и их отношение существующим расстройства