bluuebunny/crossref_metadata_2025 huggingface dataset:
Methods of Coal Liquefaction
Authors:   NPJSC «Abylkas Saginov Karaganda Technical University», MUSINA Gulnaz , AKIMBEKOVA Bakit ,   NPJSC «Abylkas Saginov Karaganda Technical University», ZHORABEK Aigul ,   NPJSC «Abylkas Saginov Karaganda Technical University», KARILKHAN Aidyngul ,   NPJSC «Abylkas Saginov Karaganda Technical University», NURTAI Zhadyra ,   K. Kulazhanov Kazakh University of Technology and Business
Published: November 2024

The methods of production of liquid fuels and chemical products from coal are considered. The most universal method for producing liquid products from coal is direct hydrogenation, i.e., the production of molecular hydrogen under pressure at elevated temperature using a liquid product (paste) and catalysts. During hydrogenation about 90% of coal is converted into gas and liquid products. In the process of coal hydrogenation, stabilization of coal radicals occurs due to H-donor hydrogen, the activation of which can be passed through the catalyst. One of the most important factors in the coal liquefaction process is the presence of hydroaromatic and hydrogen-donor substances of coal origin in the solvents. The hydrogen donor was found to be 1,2,3,10 β-tetrahydrofluoranthene, 4,5-dihydropyrene, hexahydropyrenes and 9,10-dihydrophenentrenes. A good solvent-hydrogen donor substance tetralene was found, the degree of transformation of OMP was 90% in 15 min, and tetrahydroquinoline was a low-metamorphosed carbon (degree of transformation of OMP less than 80%). The degree of conversion of 100% was given by a mixture of oil ash with tetrahydroquinoline. It is recommended to use polymetallic ore processing sludge and metal sulfides as catalytic additives. The use of iron sulfates or sulfites as catalysts, accelerating the cleavage of C-C bonds in coal, and the use of AlCl3, SbCl3, ZnCl2, BF3, SnCl2 compounds as catalysts among various solvents showed that the coal hydrogenation process can be carried out under mild conditions (initial pressure 0,1 MPa, temperature at least 200°C).
Formation of A Culture of Occupational Safety at Oil and Gas Industry Enterprises
Authors:   NCJSC «Toraighyrov University», OMAROV Talgat , CHIDUNCHI Irina ,   NCJSC «Toraighyrov University», ARYNOVA Shynar ,   NCJSC «Toraighyrov University», KRAVKA Miroslav ,   Czech University of Life Sciences, URUZALINOVA Meruert ,   NCJSC «Toraighyrov University»
Published: November 2024

One of the most important aspects of labor activity and productivity is ensuring safety and comfort at the workplace. The main purpose of the study is to analyze the obtained data on reducing the number of occupational injuries and to identify the main factors of improving work culture at the enterprises of the oil and gas industry. The authors of the work noted the importance of preventive measures aimed at reducing the rate of occupational injuries and accidents to ensure safety and improve the culture of labor protection. In the oil and gas industry, characterized by a high level of danger and complex technological processes, labor safety is especially important, so the authors analyzed the statistical data of occupational injuries in the period from 2015 to 2022 in «KazTransOil» JSC. As a result of the study, the key factors for improving the culture of labor safety were identified. Due to the comprehensive improvement of safety culture and transition from «dependent» to «independent» level in the company's strategy is supposed to use leadership tools and involvement of management, employees. These measures taken have contributed to a 66% reduction in occupational injuries in 2021 as compared to 2020 and also resulted in zero injuries in 2022. By analyzing the Bradley Curve reduction in the number of injuries and identifying factors that contribute to an improved safety culture, a safer work environment can be created and the company's performance can be improved.
Critical Analysis of External and Internal Structure-Forming Factors Affecting the Quality Indicators of Asphalt Concrete Based on The Industrial Wastes
Authors:   NPJSC «Karaganda Industrial University», KUNAEV Vyacheslav , AKHMETOVA Gulzhainat ,   NPJSC «Karaganda Industrial University», BATYRBEK Alibek ,   NPJSC «Karaganda Industrial University», AVSHANOV Ilgar ,   NPJSC «Karaganda Industrial University», FATHI Mohamad ,   University of Technology Malaysia
Published: November 2024

The article is devoted to the issue of increasing the life cycle of automobile roads as transport infrastructure facilities through designing of asphalt concrete mixtures, taking into account the structure-forming factors that determine the effectiveness of road transport construction. The purpose of the study is to analyze the structure-forming factors affecting the quality indicators of road asphalt concrete based on the industrial wastes. To achieve this purpose, the methods of literary-patent review and set theory were used. The conducted literature review showed possible options for using blast furnace slag and microsilica in road transport construction. Based on its results, subsets of internal and external factors affecting the physical and mechanical characteristics of asphalt concrete were identified. The authors established a set of structure-forming factors that make it possible to select and describe with the help of set theory those factors that need to be taken into account and optimized for a given variant of design of asphalt concrete mixture, for example, when using industrial wastes in its composition. The most important factors determining the quality indicators of asphalt concrete for automobile roads when using blast furnace slag and microsilica in its composition were determined.
Change of Mechanical Properties of Wire Under Cryogenic Cooling in the Process of Drawing
Authors:   NPJSC «Karaganda Industrial University», VOLOKITINA Irina , PANIN Evgeny ,   NPJSC «Karaganda Industrial University», AKHMETOVA Gulzhainat ,   NPJSC «Karaganda Industrial University»
Published: November 2024

The influence of a new technology of carbon steel wire processing on the change of its mechanical properties is investigated. This technology consists in the application of cryogenic cooling immediately after the wire exit from the die. Deformation was carried out at cryogenic temperature and for comparison at room temperature. The results of the laboratory experiment show that the application of cryogenic deformation treatment after wire drawing improves the mechanical properties compared to conventional drawing. So at processing of wire from low-carbon steel the tensile strength increases on 10%, conditional yield strength – on 11,5%, relative contraction after a break decreases on 6%. The homogeneity of the formed structure along the wire cross-section after the developed method is confirmed by the results of microhardness measurement. Cryogenic cooling of 5.0 mm diameter St3 steel wire causes an increase of microhardness in the central region from 1320 MPa to 1745 MPa, and on the surface the change of microhardness is from 1347 MPa to 1842 MPa.
Multicomponent Cathode Materials for Lithium-ion Batteries
Authors:   Kazakh-British Technical University, DYUSSEMBAYEV Medet , KHABIYEV Alibek ,   Institute of Mechanics and Engineering named after academician U.A. Dzholdasbekov
Published: November 2024

A study of cathode materials used in lithium-ion batteries (LIBs) is presented. The primary focus is on multicomponent single-phase systems, namely solid solutions, such as Li- CoO2-LiNiO2-LiMnO2. Although there is a substantial amount of data in this field, there are still unresolved problems regarding the alterations in the valence states of transition metals during cyclic charge-discharge operations. The need for further study in the area of composite cathode materials is discussed, particularly in exploring the use of interphase and grain-boundary amorphized structures to enhance the kinetic properties of lithium-ion batteries (LIB). The importance of conclusion highlights the significance of doing additional research in these domains with the objective of creating novel and effective cathode materials is emphasized. This research aims to enhance the performance and stability of lithium-ion batteries throughout their regular usage.
Purification of Complex Solution of Zinc Sulfate from Copper Ions by Electrocementation Method
Authors:   NCJSC «D. Serikbayev East Kazakhstan Technical University», LIAKYN Lyazat , MAMYACHENKOV Sergey ,   Ural Federal University named after the First President of Russia B.N. Yeltsin, ONALBAYEVA Zhanar ,   NCJSC «D. Serikbayev East Kazakhstan Technical University», ANISIMOVA Olga ,   Ural Federal University named after the First President of Russia B.N. Yeltsin, DAUMOVA Gulzhan ,   NCJSC «D. Serikbayev East Kazakhstan Technical University»
Published: November 2024

The aim of this work is the effective removal of copper from a complex deferrous zinc sulfate solution by electrochemical cementation using a membrane electrolyzer. As a result of the study, the parameters of the process of purification using the membrane electrolyzer were determined. The parameters obtained from the results of the studies showed that the copper content in the solution can be reduced to 0.002 g/dm3. At the same time, up to 99% of copper can be removed. Thus, after the electrochemical treatment, zinc sulfate solutions are sent to electrolysis, and copper obtained in the form of cathodic precipitates are sent to further processing.
Determination of Optimal Parameters of the Air Flow Created by the Pneumatic Loader of the Harvesting and Transport Unit
Authors:   NCJSC «S. Seifullin Kazakh Agro Technical Research University», ABULKHAIROV Darmen , SAGYNGANOVA Indira ,   NPJSC «L.N. Gumilyov Eurasian National University», USSERBAYEV Muratbek ,   NCJSC «S. Seifullin Kazakh Agro Technical Research University», MENDALIYEVA Saule ,   NCJSC «S. Seifullin Kazakh Agro Technical Research University», BOBEEV Abay ,   NCJSC «S. Seifullin Kazakh Agro Technical Research University»
Published: November 2024

The design of working bodies of a harvesting and transport unit (HTU) for hay collection is considered. The HTU consists of a hay pickup, a pneumatic loader and an assembly chamber. The process of filling the chamber was investigated, and the characteristics of the pneumatic loader ensuring high-quality performance of this process were determined. The main requirement for the pneumatic loader is the ability to create and maintain technological parameters – air flow rate at a corresponding air flow velocity. An analytical expression was obtained for the trajectory of a hay mass particle at the outlet of the loader depending on the air flow velocity and the angle to the horizontal. The relationship between this velocity and the parameters of the material particle flight trajectory and the dimensions of the assembly chamber was established. The optimal parameters of the velocity of 22-25 m/s correspond to the following overall dimensions: length – 5.0 m, height – up to 4.0 m.
Studying the Geology of one North Tian Shan Tragic Landslide
Authors:   NPJSC «Abylkas Saginov Karaganda Technical University», KADIROVA Zhanar , BAYMAKHAN Rysbek ,   NPJSC «Kazakh National Women's Pedagogical University»
Published: November 2024

The method of reconstruction and investigation of the pre-landslide condition of the tragic landslide «Ak-Kain» of the Northern Tien Shan is proposed. Information about the study of this mountain slope located along the Almaty – Talgar highway above the sanatorium of the same name is presented. The results of a geological study of the structure and composition of ground sediments from the ceiling to the foot of the Northern slope, along which the landslide occurred, are presented. Also, visual studies of the remains of landslide masses have established the layers of the initial position of the cover soils and the underlying layers. A geometric model of the initial to landslide structure of the slope with its geological deposits both along the slope and in depth towards the basalt-granite rock surface has been developed. The results of the study are shown in the form of pictures of the exact zones and layers from the top of the slope to the bottom. The meaning of the proposed methodology consists in purposeful step-by-step scientific research, starting with the study of the geology, tectonics of the region, structure, composition of soils, taking into account the eluvial-deluvial-proluvial zones, their physico-mechanical, strength properties, especially attention is paid to the real anisotropy of the composition of soil deposits and their properties. The developed algorithms for studying infiltration movements of rainwater are described. In general, the results of this work make it possible to conduct targeted research by methods of mechanical and mathematical modeling to assess and determine the critical condition for predicting the place of the beginning of soil separation from the slope.
ПРОБЛЕМЫ ЗАНЯТНОСТИ ЛИЦ С ИНВАЛИДНОСТЬЮ В КАЗАХСТАНЕ
Authors: Т.К. Бекжанова , Б.Т. Ауешова , Д.Д. Ешпанова , T. Bekzhanova , B. Auyeshova , D. Yeshpanova
Published: November 2024

Статья посвящена изучению рынка труда для лиц с инвалидностью. В статье рассмотрено нормативно-правовая база в сфере занятости инвалидов на территории Казахстана. В статье проанализирован удельный вес лиц с инвалидностью (ЛСИ), который снижался с 2019 года до 2022 года с 3,76% до 3,63% соответственно и увеличился в 2023 году и составил 3,64%. Авторами изучено динамика изменения численности зарегистрированных ЛСИ и уровня безработицы за 2022 и 2023 годы в разрезе регионов Казахстана. Так, анализ показал увеличение численности ЛСИ в 2023 году по сравнению с 2022 годом во многих регионах страны, а по уровню безработицы – снижение. Например, в Карагандинской области уровень безработицы был снижен с 4,4% до 4,1%. Далее в статье проанализирован динамика занятости ЛСИ трудоспособного возраста по Казахстану, который показал, что 2020 и 2021 годы было зафиксировано самое низкий процент занятности ЛСИ по стране, но с 2022 года снова увеличился с 24,8% до 25,3%. Как показал анализ, основными одним из основных факторов, повлиявшим на снижение уровня безработицы, является увеличение количества предприятий МСП, внесение изменения в законодательстве, реформы в социальной политике, в том числе принятие 20 апреля 2024 года Социального кодекса Республики Казахстан вместо закона РК «О социальной защите лиц с инвалидностью в Республике Казахстане».

The article is devoted to the study of the labour market for persons with disabilities. The article considers the legal framework in the sphere of employment of persons with disabilities in the territory of Kazakhstan. The article analyses the specific weight of persons with disabilities (LSI), which decreased from 2019 to 2022 from 3.76% to 3.63% respectively and increased in 2023 and amounted to 3.64%. The authors studied the dynamics of changes in the number of registered LSI and unemployment rate for 2022 and 2023 in the context of regions of Kazakhstan. Thus, the analysis has shown an increase in the number of people living with HIV in 2023 compared to 2022 in many regions of the country, and a decrease in the unemployment rate. For example, in Karaganda region the unemployment rate was reduced from 4.4% to 4.1%. Further in the article analysed the dynamics of employment of working age LSI in Kazakhstan, which showed that 2020 and 2021 was recorded the lowest percentage of employment of LSI in the country, but from 2022 again increased from 24.8% to 25.3%. As the analysis showed, the main factors that influenced the decrease in unemployment are the increase in the number of SMEs, changes in legislation, reforms in social policy, including the adoption of the Social Code of the Republic of Kazakhstan on 20 April 2024 instead of the Law of the Republic of Kazakhstan "On Social Protection of Persons with Disabilities in the Republic of Kazakhstan".
organization of tourism infrastructure of the Republic of Kazakhstan
Authors: Z. Nurgalieva , А. Orazgaliyeva , А. Karipova , G. Amrenova , З.Х. Нургалиева , А.К. Оразгалиева , А.Т. Карипова , Г.К. Амренова
Published: November 2024

The tourist infrastructure is an indicator of the development of the state, reflecting the development of the state. Changes in tourism policy get going. The uniqueness of this phase lies in the overhaul of the regulatory framework and the formulation of a growth strategy. Foreign and domestic investments have been attracted to the development of tourism. The article examines the present condition of the tourism infrastructure. International experts assert that the tourism sector's progress is characterized by steady growth. Over time, the country could emerge as a major tourist destination. At home, Kazakhstan is viewed as a stable place with plenty of tourist attractions. The investigation led to the advancement of global cooperation in the field of tourism. The results obtained can be used to prepare lectures on disciplines that contribute to the development of the theory of tourist infrastructure. The results obtained can be used to prepare lectures on disciplines that contribute to the development of the theory of tourist infrastructure.

Развитая туристская инфраструктура является одним из показателей, отражающих развитие государства. В наше время проводимая в нашей стране политика туризма дает толчок к прогрессивным изменениям. Особенностью данного этапа является реформирование законодательной базы в сфере туризма, разработка новой концепции развития отечественного туризма. В стране всесторонне созданы все возможности привлечения притока иностранных и внутренних инвестиций в развитие туристской инфраструктуры. В статье проведен анализ современного состояния туристской инфраструктуры. По мнению международных экспертов в области туризма, состояние развития индустрии туризма в стране в последние годы характеризуется ее прогрессивным, устойчивым развитием. В ближайшие годы наша страна может стать крупнейшей туристической страной и туризм может стать одним из главных механизмов экономики. На сегодняшний день за рубежом Казахстан стал рассматриваться как одна из самых стабильных стран с уникальными туристскими возможностями. В результате проведенного исследования было предложено развитие международного сотрудничества в сфере туризма страны. Результаты исследования вносят определенный вклад в развитие теории туристской инфраструктуры и могут быть использованы для подготовки лекций.
МОЛОДЕЖЬ НА РЫНКЕ ТРУДА В СОВРЕМЕННЫХ УСЛОВИЯХ
Authors: Г.М. Кушебина , Г.Ы. Бекенова , Э.Р. Кузенбаева , С.В. Кулакова , G. Kushebina , G. Bekenova , E. Kuzenbayeva , S. Kulakova
Published: November 2024

Статья посвящена анализу рынка труда молодежи в современных условиях посредством определения факторов, влияющих на показатели занятости. Авторами проведен обзор литературы зарубежных и отечественных авторов по вопросам занятости молодежи и безработицы, который показал о наличие факторов, влияющих на трудоустройство молодежи, таких как возраст, пол, образование, миграции, инновационного развития и заработной платы. Авторами был проведен анализ рынка труда Казахстана за 2001-2023 годы, показавший снижение уровня безработицы среди молодежи в 4 раза за исследуемый период. Также были проанализированы показатели самозанятости и образованности среди молодых людей. В ходе анализа были использованы статистический метод, графический метод и сравнительный метод анализа, которые позволили изучить сложившуюся ситуацию на рынке труда молодежи. С помощью корреляционного анализа были изучены факторы, которые могут оказать влияние на молодежный рынок труда. В качестве факторов были выбраны: количество безработной молодежи, количество самозанятой молодежи, число молодежи с высшим образованием и без образования, а также доля молодежи NEET. В результате корреляционный анализ показал о необходимости повышать уровень образования молодежи, их стремление к получению профессиональной квалификации, поскольку образование имеет повышенное влияние на показатели безработицы.

The article is devotedto the analysis of the youth labor market in modern conditions by determiningthe factors influencing employment indicators. The authors conducteda review of the literature of foreign and domestic authors on youth employment and unemployment, which showed the presenceof factors affecting youth employment, such as age, gender, education, migration, innovative development and wages.The authors conducted an analysis of the labor marketin Kazakhstan for 2001-2023,which showed a 4-fold decreasein youth unemployment over the period under study. The indicatorsof self-employment and education among young people were also analyzed. During the analysis, a statistical method, a graphical method and a comparative analysis method were used, whichmade it possible to study the current situation in the youth labor market. Using correlation analysis, the factors that can havean impact on the youth labor market were studied. The following factors were selected:the number of unemployed youth,the number of self-employed youth,the number of youth with and without higher education, as well as the proportion of NEET youth.As a result, the correlation analysis showed the needto increase the level of educationof young people, their desire to obtain professional qualifications, since education has an increased impact on unemploymentrates.
РАЗВИТИЕ ИННОВАЦИОННЫХ СИСТЕМ В КОНТЕКСТЕ РЕАЛИЗАЦИИ СТРАТЕГИИ «СМАРТ СПЕЦИАЛИЗАЦИЯ RIS3»
Authors: Д.Е. Баксултанов , Н.А. Курманов , Е.А. Гордеева , Д.М. Темирбаева , D. Baxultanov , N. Kurmanov , Ye. Gordeyeva , D. Temirbayeva
Published: November 2024

В статье исследована эволюция проводимой в Республике Казахстан государственной инновационной политики и сделан анализ принятым стратегическим и программным документам в области научно-технического и инновационного развития системы государственного планирования. По итогам проведенного анализа было выявлено, что основной причиной, сдерживающей развитие инновационного потенциала и невозможности правильно выстроить приоритеты для его дальнейшего развития, явилось отсутствие комплексного и системного подхода к вопросу управления инновационными процессами. В статье предложены подходы, направленные на выработку государственной инновационной политики на основе концепции стратегии «смарт специализации» в области исследований и инноваций RIS3. Актуальность данного подхода научно-обоснована по итогам исследования влияние стратегии RIS3 на социальное и экономическое развитие стран Европейского союза. В статье авторы использовали методы библиометрического и контент-анализа научных публикаций, представленных в базах данных Scopus и Web of Science. На основе ключевых слов «Смарт специализация» и «Стратегия» были идентифицированы и детально проанализированы соответствующие статьи. На основании систематизации полученных данных предложены концептуальные подходы к применению концепции RIS3 в вопросах разработки национальной стратегии развития национальной инновационной системы Казахстана.

This article examines the evolution of state innovation policy and analyzes strategic and programmatic documents in the field of scientific, technical, and innovation development within the framework of state planning systems. The analysis revealed that the primary reason hindering the development of innovation potential and the inability to correctly establish priorities for its further development was the lack of a comprehensive and systematic approach to managing innovation processes. The article proposes approaches aimed at formulating state innovation policy based on the Smart Specialization Strategy (RIS3) in the field of research and innovation. The relevance of this approach is scientifically justified by the study of the impact of the RIS3 strategy on the economic development of regions within the European Union. Utilizing data from the Web of Science and Scopus databases, the authors employed bibliographic and content analysis methods to examine scientific publications related to the keywords "Smart Specialization" and "Strategy". Based on the systematization of the obtained data, conceptual approaches have been proposed for applying the RIS3 concept to the development of a national strategy for the development of Kazakhstan's national innovation system.
АКТУАЛЬНОСТЬ КАЗАХСТАНСКОГО ИНЖЕНЕРНОГО ОБРАЗОВАНИЯ ДЛЯ СОВРЕМЕННОЙ ЭКОНОМИКИ
Authors: Ш.Г. Саркамбаева , Н.М. Зыкова , А.Ж. Турегельдинова , Г.О. Тансыкбаева , Sh. Sarkambayeva , N. Zykova , A. Turegeldinova , G. Tansykbayeva
Published: November 2024

В свете высокой конкуренции экономик различных стран ключевым компонентом развития выступают инновации и устойчивые решения. Для формирования предпосылок к ним в Казахстане делаются попытки реформирования сферы науки и образования, поскольку высококвалифицированные кадры являются двигателем высокотехнологичных отраслей, создают новые продукты и оптимизируют процессы производства и управления. Данная работа посвящена изучению современного состояния инженерного образования в Казахстане через сравнение его с передовыми мировыми практиками и актуальными трендами в этой области. Анализ современных трендов выявил насущность внедрения в обучение инженеров таких компонент как концепция устойчивого развития и поиск возможностей ее внедрения в инженерию, а также необходимость обучения инженеров креативности, поиску инноваций, привития мягких навыков, включая управление, коммуникации, предпринимательство, а также концепции и принципов этики в современных инженерных решениях с вовчелением машинного обучения и дальнейшего развития искусственного интеллекта. Были изучены 44 образовательных программы в рамках направления “Инженерия и инженерное дело” семи различных университетов. Проведенный первичный анализ образовательных программ выявил необходимость трансформации инженерного образования в Казахстане.

In light of the highly competitive economies of different countries, innovation and sustainable solutions are a key component of development. To create the prerequisites for them in Kazakhstan, attempts are being made to reform the sphere of science and education, since highly qualified personnel are the engine of high-tech industries, create new products and optimize production and management processes. This work is devoted to studying the current state of engineering education in Kazakhstan by comparing it with global best practices and current trends in this area. An analysis of modern trends has revealed the urgency of introducing such components into the training of engineers as the concept of sustainable development and the search for opportunities for its implementation in engineering, as well as the need to train engineers in creativity, search for innovation, instilling soft skills, including management, communications, entrepreneurship, as well as the concept and principles of ethics in modern engineering solutions involving machine learning and further development of artificial intelligence. 44 educational programs were studied within the “Engineering” direction of seven different universities. The initial analysis of educational programs revealed the need to transform engineering education in Kazakhstan.
ТҮРКІСТАН ОБЛЫСЫНЫҢ 2020-2023 ЖЫЛДАР КЕЗЕҢІНДЕГІ БЮДЖЕТІН ТАЛДАУ ЖӘНЕ БАҒАЛАУ
Authors: Қ. Мырзабекқызы , Д.Н. Келесбаев , Д.О. Сатыбалдиева , Б.Б. Досанов , K. Myrzabekkyzy , D. Kelesbayev , D. Satybaldiyeva , B. Dosanov
Published: November 2024

The article analyzes the budget of the Turkestan region for the period 2020-2023. The main attention is paid to the dynamics of revenues and expenditures, as well as changes in the budget deficit (surplus) for the specified period. The use of financial resources and loans to finance budget operations is considered. Data analysis allows us to highlight the key problems and tasks facing the budget of the Turkestan region, as well as to identify potential strategies and measures to improve the financial situation and ensure sustainable development of the region. In order to ensure the socio-economic well-being of residents of the Turkestan region, the work shows the need for effective financial management, optimization of expenses and increase in revenues. As a result of the study, through analysis of the use of financial resources and loans, it is shown that the region is actively using internal resources to finance its needs, and it is also determined that it is faced with the need to seek external financing and loans. Therefore, it is proposed to pay more attention to measures to reduce costs, increase revenues and optimize budget management in order to achieve sustainable development and ensure the well-being of the Turkestan region and its residents. It also requires careful analysis and development of strategies to ensure financial stability, efficient use of resources and effective management of long-term financial risks.
GINGIVAL STATUS AND ORAL HYGIENE HABITS IN CHILDREN BETWEEN 10-12 YEARS
Authors:   Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria, Lazarova Zornitsa , Tankova Hristina ,   Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria, Doichinova Liliya ,   Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria
Published: November 2024

Introduction: Children's adolescence is characterized by dynamically changing indicators of periodontal and oral health, related mainly to the eruption of the permanent dentition and stabilization of the periodontal space. This age period is also characterized by an increased incidence of gingival diseases, with the dental biofilm being the main risk factor for the inflammatory process. Aim: The aim of this study is to assess the relationship between gingival status, oral hygiene habits and knowledge on topics related to oral health in children aged 11-13. Material and methods: The subject of the study was 106 children aged 11-13 years. All children overwent a clinical periodontal examination and periodontal risk assessment at 4 levels. An electronic periodontal probe PA ON (Orangedental) with specially designed software was used to assess periodontal and oral hygiene status. The study included a survey method for assessing children's knowledge on topics related to oral health with periodontal focus. The survey consists of 38 questions divided into eight topics. Results: All the children aged 11-13 years had an initial form of gingival inflammation, against the background of plaque accumulation affecting more than 69% of tooth surfaces, unstable and irregular oral hygiene habits, as well as insufficient knowledge of oral/periodontal health. Through appropriate preventive programs, this age is best suited to create consciously motivated behavior for proper oral hygiene and oral health.
Atypical febrile illness caused by an emerging opportunistic pathogen Roseomonas gilardii A case report
Authors:   Department of Microbiology Regency Hospital Ltd Kanpur India, Paul Pradeep
Published: November 2024

Roseomonas gilardii is a rare pathogen which has been reported to cause bacteremia and other systemic infection in a chronic debilitated patient Here in this report we discuss a case of 3 yr old male patient who presented with symptoms of acute onset fever with multiple episodes of seizures and postictal drowsiness
Peribiliary cysts in a normal liver Case report and review of the literature
Authors:   Clarunis University Center for Gastrointestinal and Liver Disease St Clara Hospital and University Hospital Basel Spitalstrasse 21 CH 4056 Basel Switzerland, Hess Gabriel F
Published: November 2024

A 72 year old female presented with acute epigastric pain vomiting and fever She was diagnosed with a cholangiosepsis caused by Escherichia coli
Infantile tracheal hemangioma in a previously healthy infant
Authors:   Department of Academic Affairs Tawam Hospital Al Ain United Arab Emirates, Shahrour Ola
Published: November 2024

Infantile hemangiomas are common benign vascular tumors often found in children They usually manifest as lesions on the skin and mucosal surfaces but they can also appear in other areas such as the airway and liver
Numerical Investigation of Heat and Mass Transfer Characteristics in MHD Boundary Layer Flow of a Nanofluid over a Stretching Sheet
Authors: Vinodkumar
Published: November 2024

Nanofluids, which are simply suspensions of nanoparticles in a base fluid, have greater mass and heat transfer capabilities compared to regular fluids. Nanofluids are distinguished by their ability to transmit heat and mass. The potential applications of nanofluids in the scientific community have seen a spike in attention as a result of this. Simulations of the mass and heat transport parameters in magneto hydrodynamic boundary layer flow of a nanofluid across a stretched sheet are presented in this paper. These simulations were carried out using numerical methods. This investigation is going to look at a lot of important aspects, such as thermophoresis, Brownian motion, and the presence of a magnetic field that is applied. Continuity, momentum, energy, and concentration are the equations that are responsible for controlling the problem. The momentum equation takes into account the opposing magnetic field by means of the Lorentz force component. On the other hand, the energy and concentration equations take into account the mobility of the nanoparticles in the nanofluid as a result of Brownian motion and thermophoresis. Because of similarity transformations, the controlling partial differential equations are reduced to a set of ordinary differential equations. This action is taken in order to make the numerical application of the solution more straightforward. Calculating numerical solutions to these modified equations using any common technique, such as the Runge-Kutta-Fehlberg algorithm, is the next step that has to be taken. Utilizing this method, which is not only accurate but also time-saving, it is possible to solve issues that are associated with nonlinear boundary layers.
EXAMINING THE PURCHASING BEHAVIOUR OF SPECIFIC MEDICAL SERVICES WITHIN A PRIVATE PHYSIOTHERAPY CLINIC
Authors:   “Ovidius” University of Constanta, Constanta, Romania, Mariana JUGĂNARU , Amina FERAT ,   Academia de Studii Economice București, Felicia RUSU ,   KMG International N.V., Sorina-Raula Gîrboveanu ,   University of Craiova, Craiova, Romania
Published: November 2024

The modern man is increasingly concerned about his health, allocating time and money for this purpose. An important aspect for a potential client-patient is the choice of a medical center that meets their needs, which in a marketing approach represents the identification of a medical services offer suitable for their own desires. The satisfaction level of a client-patient is correlated with the extent to which the purchased medical service contributes to reducing the intensity of their ailments or resolving them. The objective pursued within the research presented in this article is to understand the behaviour of purchasing medical services. The research results highlight the most important aspects in shaping the decision-making of client-patients within a private medical center in Constanța. These findings can be used by the center's management as proposals for organizing future activities with the aim of increasing customer satisfaction.
THE NEW ATLANTEANS: FORCED MIGRATION, STATELESSNESS AND JUSTICE
Authors:   Bifrost University, Borgarnes, Iceland, Magnus Arni Skjöld MAGNUSSON , Heather ALLANSDÓTTIR ,   Bifrost University, Borgarnes, Iceland, Danielle Elizabeth BEAUCHEMIN ,   Bifrost University, Borgarnes, Iceland, Elham FAKOURI ,   Bifrost University, Borgarnes, Iceland, Judit RODRIGUEZ ,   Bifrost University, Borgarnes, Iceland, Anca TĂNASIE ,   University of Craiova, Craiova, Romania
Published: November 2024

With the well-documented predicted continuation of rising sea-levels as a result of man-made climate change over the next century, two interrelated issues have emerged in international law and global policy discussions: what to do about both those who are displaced due to climate change, those whose homelands are entirely physically eradicated due to climate change, and those whose homelands remain geographically/ physically intact but who nonetheless experience forced migrations, and what transnational duties exist in both cases. This article will explore the interrelated but separate nature of these two issues, and the salient features of appropriate transnational responses, particularly the gendered dimensions of forced migration in both cases. It builds upon the existing literature of statelessness, forced migration, displacement and gendered aspects of the transnational obligations in all of these, whilst forging new ground by advancing a new thesis for how the twentieth-century paradigms of forced migration and statelessness must be modified in the wake of this new reality, of climate-crisis-induced forced migration and statelessness.
EVALUATING THE EFFECTIVENESS OF CUSTOMER COMPLAINT RESPONSES ON NMB MKONONI SATISFACTION: A CASE STUDY OF NMB BANK PLC IN DODOMA CITY, TANZANIA
Authors:   National Micro Finance Bank, Dodoma Tanzania, Mohamed Salum KILINDO , Nasibu Rajabu MRAMBA ,   College of Business Education, Dar es Salaam Tanzania
Published: November 2024

This research examines the efficiency of customer complaint responses and their impact on satisfaction with NMB Mkononi services in Tanzania, specifically focusing on NMB Bank PLC in Dodoma City. The study aims to evaluate how effectively NMB handles customer complaints related to NMB Mkononi services. A sample of 124 respondents, including NMB Mkononi customers, staff, and branch managers, participated in the study. Data were gathered through questionnaires, interviews, and document reviews, and analyzed using both qualitative and quantitative methods. Findings indicated moderate usage of NMB Mkononi services in Dodoma City and effective responses to customer complaints by NMB Bank (total mean = 3.56). The study concludes that NMB must consistently deliver high-quality services to customers and recommends enhanced investment in reliable network infrastructure, ICT expertise, facilities, and technological adaptation to boost customer satisfaction and profitability.
STATISTICAL ANALYSIS AND FORECASTS OF SOME FINANCIAL INDICATORS FROM THE AGRICULTURAL SECTOR IN ROMANIA USING THE ARIMA MODEL
Authors:   University of Craiova, Craiova, Romania, Mirela Floriana GĂMAN , Ana-Maria Camelia POPESCU ,   University of Craiova, Craiova, Romania
Published: November 2024

In this paper, a statistical analysis of some financial indicators in Romania for the period 1991-2023 was made. Indicators from the agricultural field were studied, such as the export and import of animals and animal products, but also of vegetable products, as well as the total import and export. Using the ARIMA method (autoregressive integrated moving average), forecasts for the period 2024-2026 were presented for all the studied indicators.
Cellulose-supported Silica-based Monolithic Membranes: Fabrication, Characterization and Optimization for Tap-water Desalination
Authors:   Institute of Water and Environment, Al-Azhar University-Gaza, Palestine., Nabriss Ahmad , Lubbad Said
Published: November 2024

Background: The Gaza Strip is faced with a conundrum of high ground-water salinity. This salty water damages home appliances and impairs household RO desalination-units. Methods: Silica-based monolithic-membranes were fabricated by embedding cellulose filter paper in silica-based monolithic membranes and the polymerization was triggered by hydrochloric or citric acids. Results: Twenty-eight membranes were produced utilizing various fabrication recipes and membrane sizes. The membranes performance was evaluated for input tap-water of TDS that ranged between 500 to 5000 ppm and various experimental setups were investigated. Furthermore, membranes porosity was studied by nitrogen sorption-desorption isotherms (BET). Hence, dissimilar desalination efficiency of 5.1 and 12.9 % was concluded for membranes prepared using hydrochloric and citric acid as initiators, respectively. Moreover, the highest desalination membrane performance was noticed for input tap-water of TDS ranging between 2000 and 3000 mg/L. Sequential tap-water desalination using four identical membranes in the raw enhanced salt removal to 31.6 %. Conclusion: Thus, this cost-effective silica-based membrane is of high potential for use as disposable prefilter unit to alleviate the salinity of input water into household RO units or other home appliances such as washing machine or dishwasher.
HEAVY-DUTY CONCRETE WITH FROST RESISTANCE F400 WITH COMPLEX CHEMICAL ADDITIVES
Authors: MARKOVTSOVA V. , PARFENOVA L. , ZAKREVSKAYA L.
Published: November 2024

The article presents the results of studies of the influence of complex chemical additives on the physical and mechanical properties of concrete, taking into account the curing conditions. It has been experimentally confirmed that the complex additive: the hyperplasticizer Hidetal GP-9-Alpha, 0,7% of the cement mass, and the air-entraining additive Hidetal P8, 0,05% of the cement mass, allows to obtain concrete with a denser structure, promotes equally active strength gain of con-crete in the early stages under air-dry curing conditions and under low-temperature heat and humidity treatment, at the age of 28 days under curing under heat and humidity treatment provides an increase in concrete strength by 15%. New experimental data are presented on the efficiency of the combined use of the hyperplasticizer Hidetal GP-9-Alpha and the air-entraining additive Hidetal P8 for obtaining concrete of class C32/40 with frost resistance grade F 400.
A rank-based estimation method for mixed effects models in the presence of outlying data
Authors: Brune Barbara , Ortner Irene , Filzmoser Peter
Published: November 2024

We present an approach to the rank-based estimation of mixed effects models, extending existing methods to random effects structures beyond random intercepts. The estimates obtained from our procedure are insensitive to outlying observations including leverage points, (almost) tuning-parameter free and can be computed very efficiently. Furthermore, the resulting estimates allow for model diagnostics, especially with respect to the identification of outlying observations or groups in the data. The properties of the proposed estimators, in particular, their robustness to different outlier types, are studied by means of simulation studies. The methodology is illustrated with applications to the sleep study data set and to data from accelerated aging experiments on photovoltaic (PV) modules.
САВКИНСКОЕ Au-As (±Sb, Hg) МЕСТОРОЖДЕНИЕ КАК ПРИМЕР CARLIN-LIKE ТИПА В ВОСТОЧНОМ ЗАБАЙКАЛЬЕ
Authors: Ю.О. Редин , А.В. Малютина , А.С. Борисенко , С.В. Шадрина
Published: November 2024

В работе современными методами изучены минеральный состав и геохимические особенности руд, изотопный состав серы сульфидных минералов Савкинского месторождения Восточного Забайкалья. Наиболее богатые рудные тела приурочены к брекчиям. Установлен возраст даек шахтаминского комплекса. Первые полученные данные о микроэлементном составе циркона позволяют говорить о высокой потенциальной рудоносности даек. Флишоидные отложения быстринской свиты изначально, вероятнее всего, были обогащены золотом, а дизъюнктивная тектоника в комплексе с проработкой гидротермальными (телетермальными) растворами способствовали перераспределению и концентрации промышленных содержаний золота. Проведенный комплекс исследований дает возможность отнести месторождение к Carlin-like типу.

The mineral composition and geochemical features of ores, the isotope composition of sulfur in the sulfide minerals of the Savkinskoe deposit in Eastern Transbaikalia are investigated using up-to-date methods. The richest ore bodies are associated with breccias. The age of dykes of the Shakhtama complex has been determined. The first data obtained on the microelement composition of zircon allow expecting the high ore-bearing potential of dykes. Most probably, flyschoidal sediments of the Bystrinskaya Formation were initially enriched with gold, while disjunctive tectonics along with transformation under the action of hydrothermal (telethermal) fluids promoted gold redistribution and concentration of economic significance. Results obtained in the integrated studies allow us to classify the deposit as the Carlin-like type.
КОСМОСПЕКТРАЛЬНО-МИНЕРАЛОГИЧЕСКИЙ МЕТОД ПОИСКОВ РУДНЫХ ЗОН С ИСПОЛЬЗОВАНИЕМ ЭТАЛОННЫХ МЕСТОРОЖДЕНИЙ И ЕГО ПРИМЕНЕНИЕ В ВОСТОЧНОЙ ЯКУТИИ
Authors: В.С. Антипов , А.В. Тарасов
Published: November 2024

В статье изложены основы космоспектрально-минералогического метода поисков рудных зон с использованием эталонных месторождений. Новизна метода заключается в усовершенствовании формулы расчета спектральных минералогических индексов, применении эталонных месторождений для определения информативности индексов при выявлении околорудно-измененных пород и создании космоспектрально-минералогических прогнозно-поисковых моделей (ППМ). Разработаны космоспектрально-минералогические ППМ месторождений Аркачанского типа, их поисковые признаки и критерии. Выделены рудоперспективные участки и зона измененных пород, имеющая протяженность 1,1 км при ширине до 150 м.

The article presents the fundamentals of the cosmospektral-mineralogical method of prospecting for ore zones using reference deposits. The novelty of the method lies in the improvement of the formula for calculating spectral mineralogical indices, the use of reference deposits to determine the information content of indices in identifying wallrock-altered rocks and creating cosmospektral-mineralogical forecasting and prospecting models (PPM). Cosmospektral-mineralogical PPM of Arkachansky-type deposits, their prospecting features and criteria have been developed. Ore-promising areas and a zone of altered rocks with a length of 1.1 km and a width of up to 150 m have been identified.
Encouraging investment in renewable energy through data-driven analytics and financial solutions for SMEs
Authors: Feyisayo Michael Ogunyemi  , Akinwale Omowumi Ishola
Published: November 2024

The transition to renewable energy is critical for mitigating climate change and reducing dependence on fossil fuels. However, small and medium-sized enterprises (SMEs) often face significant financial and informational barriers when attempting to invest in renewable energy solutions. This paper examines how data-driven analytics and tailored financial solutions can play a pivotal role in encouraging renewable energy adoption among SMEs. By leveraging advanced data analytics, SMEs can gain insights into energy consumption patterns, cost-saving opportunities, and the potential environmental impact of renewable energy investments. Financial solutions, including green loans, performance-based incentives, and government-backed subsidies, provide SMEs with accessible, scalable pathways to finance renewable energy projects. This approach fosters an environment where SMEs can evaluate return on investment (ROI) more effectively, minimizing risk and promoting sustainable energy practices. Additionally, the paper discusses the role of partnerships between financial institutions, technology providers, and policy-makers in developing innovative financial products tailored to SMEs’ needs. Findings suggest that the combined use of analytics and strategic financial support can significantly enhance SMEs’ participation in the renewable energy sector, contributing to broader environmental and economic sustainability goals.
Rezension von: Varnhagen von Ense, Karl August, Aufbruch nach Tübingen
Authors: Alber Wolfgang , Varnhagen Anna Maria
Published: November 2024

Peter Sprengel (Hrsg.) Karl August Varnhagen von Ense: Aufbruch nach Tübingen, Reiseblätter 1808 Wallstein Verlag, Göttingen 2024. 209 Seiten, 12 teils farbige Abbildungen. Hardcover € 28. ISBN 978-3-8353-5620-7
Rezension von: Schmid, Wilfried, Theodor von Heuglin, 20. März 1824 - 5. November 1876
Authors: Schmoll Friedemann , Schmid Wilfried
Published: November 2024

Wilfried Schmid: Theodor von Heuglin 26. März 1824 – 5. November 1876. Lebensgeschichte, Werkverzeichnis, Lebenswerk Sonderband 7 der Jahreshefte der Gesellschaft für Naturkunde in Württemberg. Stuttgart 2024. 2 Bände, 980 Seiten mit 743 Abb. Hardcover 69 €. Bd. 1: ISBN 978-3-9826074-0-5, Bd. 2: ISBN 978-3-9826074-1-2