Science Review

Journal Information
ISSN / EISSN : 2544-9346 / 2544-9443
Current Publisher: RS Global Sp. z O.O. (10.31435)
Total articles ≅ 169
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Latest articles in this journal

Krutii Yurii, Surianinov Mykola, Soroka Mykola, Karnauhova Ganna
Published: 20 September 2020
Science Review; doi:10.31435/rsglobal_sr/30092020/7191

Abstract:
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.
Бакунов А. М., Александрович А. Ф., Владысик М. С., Мелешкевич Д. В., Ситник М. Ю.
Published: 15 September 2020
Science Review; doi:10.31435/rsglobal_sr/30092020/7190

Abstract:
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.
Guram Khitiri, Raul Kokilashvili, Tinatin Gabunia, Madona Tsurtsumia
Published: 13 September 2020
Science Review; doi:10.31435/rsglobal_sr/30092020/7188

Abstract:
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.
O.B. Zubach, Grygorieva N.V.
Published: 8 September 2020
Science Review; doi:10.31435/rsglobal_sr/30092020/7187

Abstract:
Вступ. Переломи проксимального відділу стегнової кістки (ПВСК) є важливою медико-соціальною проблемою з вагомим фінансовим тягарем, проте дані щодо показників летальності та виживаності хворих після перелому відрізняються у різних країнах, а в Україні обмежені. Мета – вивчити показники 12-міс. летальності та виживаності у хворих старших вікових груп після перелому ПВСК. Матеріали й методи. У ретроспективному дослідженні проаналізовано вищезазначені показники у 350 осіб віком 50 років і старше з переломом ПВСК за 12 міс. Аналіз проводили в загальній групі, залежно від віку й статі, локалізації перелому й тактики лікування. Показники летальності розраховували згідно до стандартної формули. Показники виживаності оцінювали з використанням аналізу Kaplan-Meier та Cox's F-тесту. Результати. Показники 6-міс. летальності у хворих після перелому ПВСК складають 10,0 %, 12-міс. летальності – 12,9 %. Показники виживаності у хворих з переломом даної локалізації вищі при своєчасній госпіталізації та проведенні оперативного втручання й не відрізняються залежно від виду перелому. Показники летальності через 6-міс. після перелому ПВСК не відрізняються залежно від статі на тлі дещо вищих показників летальності через 12-міс. після перелому ПВСК у чоловіків (14,4 %) порівняно з відповідними показниками в жінок (12,1 %). Усе вищезазначене підтверджує необхідність своєчасної тактики оперативного лікування хворих з ППВСК для збереження їх життя та здоров’я.
Kulbovskyi Ivan Ivanovich, Kyiashko Vladimir Timofeevich, Holub Halyna Mykhaylivna, Skliarenko Inna Yuriyivna, Tkachuk Nikolay Sergeevich
Published: 7 September 2020
Science Review; doi:10.31435/rsglobal_sr/30092020/7189

Abstract:
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.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.The paper studies the theoretical and technological aspects of the use of gabion structures in road construction.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.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.
Fik V. B.
Published: 27 August 2020
Science Review; doi:10.31435/rsglobal_sr/30092020/7186

Abstract:
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.
Бубела А. В., Кватадзе А. І.
Published: 30 June 2020
Science Review pp 24-29; doi:10.31435/rsglobal_sr/30062020/7140

Abstract:
The work presents the study of working conditions of draining layers with crushed fraction 20 – 40 mm, and with medium grained sand in complex with tubular transverse shallow drainage. Investigations have been carried out on the construction of a road structure, the dimensions of which correspond to the field conditions. Investigations measured the amount of drained water from the trench and the time it was drained. On the basis of the results obtained, the operating modes of the drainage structures are determined, which depends on the properties of the fillers and the withdrawal time. Both types of construction are divided into short-term and long-term modes in terms of water discharge intensity. According to these regimes, the average discharge intensity of each type of drainage structure was determined and differed significantly. The work of two drainage structures was also analyzed: the drainage structure with the gravel layer worked on the drainage principle, as opposed to the drainage structure with the sand layer - on the absorption principle.
Knysh Oksana, Pogorila Marina, Polianska Valentina, Zachepylo Svitlana
Published: 30 June 2020
Science Review pp 9-15; doi:10.31435/rsglobal_sr/30062020/7137

Abstract:
Insufficient efficiency and safety of cellular probiotics encourages the search for new effective means of correction of microecological disorders. Most of the beneficial effects of probiotics are due to the biological activity of their structural components and metabolites. Recently, great hope is pinned on postbiotic products as a means of restoring the balance of intestinal microbial populations. The data obtained in this experimental study demonstrate the ability of cell-free extracts from Bifidobacterium bifidum 1 and Lactobacillus reuteri DSM 17938 cultures, cultivated in their own disintegrates supplemented with ascorbic acid, to provide anti-infection protection and correct microecological disturbances at modeling an infectious process against a background of antibiotic-induced dysbiosis in mice. The beneficial effects of cell-free extracts showed up in the acceleration of the pathogen elimination and an increase in the number of representatives of the positive intestinal microbiota. The results of the study justify the need for further clinical trials to determine the therapeutic efficacy of cell-free extracts when included in the protocols of dysbiosis treatment.
Oleg Panchenko
Published: 30 June 2020
Science Review pp 30-35; doi:10.31435/rsglobal_sr/30062020/7141

Abstract:
У статті розглядається питання інформаційних технологій та їх роль в захисті та забезпеченні національної безпеки, а також ключові проблеми, пов'язані з посиленням їх впливу в світі. Сучасний світ ‒ це складна система, простір глобальних інформаційних технологій. Сучасна інформація є основною детермінантою суспільства, а швидкий розвиток інформаційних технологій, які проникають в усі сфери нашого життя, відкриває абсолютно нові можливості для соціального прогресу, а також певні проблеми і виклики.Інформаційні технології, які використовуються практично у всіх галузях життєдіяльності людини і суспільства, стали атрибутом сучасності і безпосередньо впливають на національну безпеку і механізми її забезпечення.Впровадження інформаційних технологій в усі сфери життя людини через вразливість і недосконалість комп'ютерних програм та інформаційних технологій, а також їх доступність, створює серйозні ризики і загрози, як для звичайних громадян, так і для цілих держав.Роль інформації та інформаційних технологій у сучасному світі є надзвичайно великою. Разом зі швидким розвитком сфери інформаційних технологій виникають нові та вдосконалюються уже відомі інформаційні ризики національній безпеці держави перед суспільством в цілому та кожного окремого громадянина.На основі врахування національних інтересів України в інформаційній сфері формуються стратегічні та поточні завдання внутрішньої й зовнішньої політики державного управління щодо забезпечення інформаційної безпеки як складової сектора безпеки держави.
Ірина Володимирівна Малишева
Published: 30 June 2020
Science Review pp 16-20; doi:10.31435/rsglobal_sr/30062020/7138

Abstract:
Introduction. The article considers the features of the psycho-emotional state of pregnant women with drug addiction.Aim. To study the features of the psycho-emotional state of pregnant women with drug addiction using the Hospital Anxiety and Depression Scale HADS and SWLS Life Satisfaction Scales.Materials and methods. The study included 156 pregnant women, including 96 women with drug addiction (main group). The control group included 60 pregnant women.Results. A higher frequency of subclinically expressed anxiety and depression in pregnant women with drug addiction 62.5% (60 women) compared with women of the control group 8.3% (5 women). Life satisfaction in women the main group was at a low level, namely almost dissatisfied with life 40.6% (39 women) or dissatisfied with life 50% (48 women).Conclusions. The study showed the presence of psycho-emotional changes areas in the form of increased anxiety and depression, as well as decreased levels life satisfaction in pregnant women with drug addiction.
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