Science Review 2020-10-10T12:47:51+02:00 RS Global, Editorial office (journals department) Open Journal Systems <p style="line-height: 1.6;"><strong>Review articles</strong><br>p-ISSN: 2544-9346<br>e-ISSN: 2544-9443<br>DOI: 10.31435/rsglobal_sr<br>OCLC Number: 1036699169<br>Publisher - RS Global Sp. z O.O., Poland<br>Subject areas: engineering and medicine</p> METHODOLOGICAL ASPECTS OF RESEARCHING GABIONIC STRUCTURES IN TRANSPORT CONSTRUCTION PROJECTS 2020-10-10T12:17:00+02:00 Kulbovskyi Ivan Ivanovich Kyiashko Vladimir Timofeevich Holub Halyna Mykhaylivna Skliarenko Inna Yuriyivna Tkachuk Nikolay Sergeevich <p>The wide and scientifically grounded use of gabion structures was restrained due to the lack of regulatory and methodological foundations and documents for the design and construction of these structures in road and bridge construction, in which technical requirements, design solutions, conditions and scope of gabion were worked out, systematized and formulated designs.<br>It is very important to have a high-quality methodological and regulatory framework necessary to regulate the use of gabion structures, develop new, improve and expand the current standard solutions for strengthening the slopes of the subgrade, drainage devices and other structures, as well as in order to improve the quality of individual design of road and bridge structures using gabion structures, scientific, methodological and expert support of this design. So, the purpose of the work is to analyze domestic and international experience in the use of gabion structures in the construction industry in order to study calculation methods and technology for the construction of gabion structures. The object of research is gabion structures.<br>The paper studies the theoretical and technological aspects of the use of gabion structures in road construction.<br>The domestic and world experience of using gabion structures in the construction industry is analyzed. The advantages of using gabion structures in the development of design and construction solutions for the device and strengthening are considered.<br>Methods for calculating gabion structures and their analysis are investigated. Due to this, the possibility of calculating gabion retaining walls with a height of more than 8 m was presented. Based on the calculation method, it was concluded that the use of gabion retaining walls of such a height requires lower costs than the devices of concrete and reinforced concrete retaining walls.</p> 2020-09-07T00:00:00+02:00 Copyright (c) 2020 The authors РОЛЬ ТЕХНИЧЕСКОГО ПИСЬМА И ПИСАТЕЛЯ ПРИ РАЗРАБОТКЕ ДОКУМЕНТАЦИИ К ПРОЕКТУ 2020-10-10T12:30:42+02:00 Бакунов А. М. Бакунова О. М. Александрович А. Ф. Владысик М. С. Мелешкевич Д. В. Ситник М. Ю. <div class="page" title="Page 2"> <div class="section"> <div class="layoutArea"> <div class="column"> <p>Innovations in the field of technology have had a great impact on public development and have made life more comfortable and safer. In recent decades, the world community has entered an era of digitalization. Modern technology has helped many to make travel more accessible to the whole world. The development of IT technologies has led to the simplification of calculations, both in scientific and everyday life. It is difficult to imagine a modern person who would not have a smartphone. Personal information that synchronizes with all our devices. In any modern smartphone you can meet a smart assistant. Smart columns appear, at home, cars controlled by artificial intelligence.</p> </div> </div> </div> </div> 2020-09-15T00:00:00+02:00 Copyright (c) 2020 The authors ANALYTICAL AND NUMERICAL STUDIES OF THE STRESS-STRAIN STATE OF ROUND PLATES ON AN ELASTIC BASE WITH A VARIABLE BED COEFFICIENT 2020-10-10T12:47:51+02:00 Krutii Yurii Surianinov Mykola Soroka Mykola Karnauhova Ganna <p>The results of the study of the stress-strain state of a circular plate of constant cylindrical stiffness lying on an elastic foundation with a variable coefficient of elastic resistance are presented. Eight calculation options are considered − four each for a concrete round slab and for a steel round plate − under two conditions of fastening (hinged and rigid along the entire contour) and two laws of variation of the bed coefficient (according to the linear law and according to the law of the concave parabola). To solve the problem, the authors applied a general analytical method for solving differential equations with variable coefficients. The finite element method is used to verify the results. Comparison shows that the results coincide very well in deflections, differing in the third or fourth decimal places, and somewhat worse − in moments.</p> 2020-09-20T00:00:00+02:00 Copyright (c) 2020 The authors OBTAINING OF HYDRO-INSULATION MATERIALS, PENETRANTS AND OTHER DEFICIENT LOW- TONNAGE PRODUCTS FROM PETROLEUM 2020-10-10T11:53:11+02:00 Guram Khitiri Raul Kokilashvili Tinatin Gabunia Madona Tsurtsumia <div class="page" title="Page 2"> <div class="section"> <div class="layoutArea"> <div class="column"> <p>Hydro-insulation of building constructions, different purpose structures is one of the most important and urgent problems of the present day. Currently concrete, ferroconcrete, metal and wooden materials are used for this purpose. Materials of this kind are not produced in the South Caucasian region. Their import, transportation, clearance by the customs and other expenses significantly increase the cost of buildings and makes it unprofitable to use them. Excreted from petroleum products – paraffins and cerezines, petrolatum, luminophores and various purpose binders, can become profitable basis for obtaining of moderm hydroinsulation materials. Their inclusion in modern hydroinsulation compositions will help to increase quality of these materials and to decrease their cost. By mixing of the goudron obtained as a result of rectification of oil pipeline sediments with milled secondary tyre casting, liquid glass, quarz sand and several additives – new hydroinsulation material was obtained.</p> </div> </div> </div> </div> 2020-09-13T00:00:00+02:00 Copyright (c) 2020 The authors DYNAMICS OF MORPHOMETRIC INDICATORS OF GINGIVAL MUCOUS MEMBRANE COMPONENTS OF RATS IN THE LATE TERMS OF CHRONIC OPIOID INFLUENCE 2020-10-10T11:06:17+02:00 Fik V. B. <div class="page" title="Page 2"> <div class="section"> <div class="layoutArea"> <div class="column"> <p>The aim of this study was to examine the morphometric parameters of the thickness of the epithelial plate of the gingival mucosa, the height of the connective tissue papillae and the diameter of the lumen of hemomicrovascular white rats in the dynamics after eight, ten and twelve weeks of chronic opioid exposure. Experimental studies were performed on white male rats of reproductive age. For twelve weeks, rats were injected intramuscularly with the opioid analgesic nalbuphine at increasing average therapeutic doses of 0.212 to 0.3 mg/kg body weight. Fragments of rat jaws were used for histological and morphometric studies. Based on the analysis of the obtained morphometric parameters of the studied components of the gums, it was found that in the late stages of chronic opioid exposure there was a significant decrease in epithelial thickness and connective tissue papillae and a significant increase in the lumen diameter of hemomicrocirculatory progression of inflammatory-dystrophic changes in periodontal tissues.</p> </div> </div> </div> </div> 2020-08-27T00:00:00+02:00 Copyright (c) 2020 Fik V. B. INDICES OF 12-MONTH MORTALITY IN PATIENTS AFTER HIP FRACTURE 2020-10-10T11:47:41+02:00 O.B. Zubach Grygorieva N.V. <p><strong>Introduction.</strong> Hip fractures (HF) are an important medical and social problem with a significant financial burden for different countries, but data about mortality and survival rates after these fractures vary from country to country and are limited in Ukraine. The <strong>aim</strong> was to study the indices of 12-month mortality and survival in patients of older age groups after HF. <strong>Materials and methods.</strong> In the retrospective study, we analyzed these indices in 350 people aged 50 years and older with an HF. The analysis was performed in the general group, depending on age and sex, fracture location, and treatment tactics. The mortality rate was calculated according to a standard formula. The survival rate was assessed using Kaplan-Meier analysis and Cox's F-test. <strong>Results.</strong> The indices of 6-month mortality in patients with HF was 10.0 %, 12-month mortality – 12.9 %. Survival rate was higher in patients with timely hospitalization and surgery and did not differ depending on fracture localization. 6-month mortality after HF did not differ depending on sex against the background of slightly higher indices of 12-month mortality in men (14.4 %) compared with the corresponding indices in women (12.1 %). All the above confirms the need for timely tactics of surgical treatment of patients to save their lives and health.</p> 2020-09-08T00:00:00+02:00 Copyright (c) 2020 O.B. Zubach, Grygorieva N.V.