bluuebunny/crossref_metadata_2025 huggingface dataset:
Kızartma ile Oluşan Isıl Proses Kirleticileri ve Sağlık Etkileri
Authors: Şahin Kezban , Bilici Saniye
Published: May 2024

Kızartma yöntemi, bilinen en eski pişirme yöntemlerinden biridir. Kızartılmış besinler lezzet, renk, doku ve görünüm gibi organoleptik ve duyusal özellikleri sayesinde tüketiciler tarafından sıklıkla tercih edilmektedir. Kızartmada kullanılan yağın türü, yağ asidi bileşimi ve niteliği oldukça önemlidir. Çünkü kızartma süresince sıcaklık, nem ve oksijene bağlı olarak birçok kimyasal reaksiyon meydana gelmektedir. Bu reaksiyonların ilerlemesi ile ısıl proses kirleticileri olarak adlandırılan ve kanser başta olmak üzere obezite, kardiyovasküler hastalıklar gibi birçok sağlık problemi ile ilişkilendirilen; akrilamid, 3-kloropropan-1,2-diol (3-MCPD), glisidil esterleri (GE), polisiklik aromatik hidrokarbonlar (PAH), trans yağ asitleri (TYA) ve furanlar oluşmaktadır. Bu çalışmanın amacı, güncel araştırmalar doğrultusunda kızartma amaçlı kullanılan yağ türlerini ve bileşimini incelemek, kızartma işlemi sonucunda oluşan ısıl proses kirleticilerinin sağlık üzerindeki etkilerini değerlendirmektir.
ENERGY MANAGEMENT: NEW PRIORITIES OF THE 21ST CENTURY
Authors: Kyrylenko Oleksandr , Denysiuk Serhii , Blinov Ihor
Published: May 2024

The development of management methodology and the concept of energy management in modern conditions of transforming the energy sector by the requirements of the carbon-free economy are considered. New qualitative features and new areas of application of energy management and energy management systems (EMS) in the implementation of the energy transition and implementation of the Smart Grid concept have been revealed. It has been established that modern energy management is a proactive, organized, and systematic coordination of the purchase, transformation, distribution, and use of energy to meet requirements, taking into account environmental and economic goals. In contrast to the formation of the EMS according to the ISO 50000 series of standards, today the construction of the EMS is becoming more relevant, which provides systemic (complex) optimization of the parameters, structure, and modes of various technical objects according to a set of technical, economic and environmental criteria.
It is shown that EMS is much more than a simple technical solution for monitoring the parameters and state of energy systems. With comprehensive forecasts of energy demand and supply, this system takes energy management to a completely new level, allowing operators of facilities (enterprises, buildings, and smart networks and systems) to determine the strategic direction of energy management, implement it, and achieve both energy efficiency and energy availability and environmental (social) acceptability. The components of EMS for Smart Grid are characterized, in particular: monitoring (actual energy production, actual energy demand, state of charge of energy storage, price uncertainty); forecast (energy production, energy demand, mobile data storage, uncertainty); power quality management (loss minimization, power quality indicators, and reliability/comfort); planning/dispatch/cost (operating costs, reduction of GHG emissions, profit maximization).
It is proposed that a promising direction is to consider the SEM as a system of information and communication technologies, which at the system level is combined with power energy processes used by operators of electric power systems and networks to monitor, control, and optimize the productivity of production, transmission, and consumption of energy resources in systems of various hierarchical levels. level (as UES of Ukraine, regional and local systems, on specific energy facilities or individual energy technologies, etc.). Based on the analysis of prospective areas of application of EMS at energy sector facilities, modern areas of scientific and technical research in the construction of energy management systems for energy, electric power, and electrotechnical systems, which are practical to carry out in Ukraine, have been determined.
IMPROVING THE QUALITY OF MAINTENANCE AND REPAIR OF TRACTION SUBSTATIONS EQUIPMENT
Authors: Drubetska Tetiana , Kozachenko E. , Panasenko D.
Published: May 2024

The article deals with maintenance and repair of traction substations.
The general problem of improving the maintenance and repair system of traction substations of electrified railways is described.
An analysis of methods and means of maintenance and repair of substation equipment was carried out.
The causes of malfunctions of the traction substations equipment are analyzed/
The distribution of malfunctions of TP equipment by types of equipment was analyzed.
The results of transformer inspections are presented.
SPEED CONTROL OF PERMANENT MAGNET SYNCHRONOUS MOTOR IN SLIDING MODE
Authors: Ostroverkhov Mykola , Kolomiichuk Denys , Falchenko Maksym , Bolshakov Hryhorii , Veshchykov Heorhii
Published: May 2024

The paper examines a series of speed control algorithms for a synchronous permanent magnet motor in sliding mode, providing asymptotic stability of the first, second, and third order. In the sliding mode, the control system exhibits properties that are unattainable with classical continuous control algorithms. The control algorithms are developed based on the inverse dynamics method combined with the minimization of local instantaneous energy functionals. The key idea of the method lies in the reversibility of the direct Lyapunov method for stability analysis. The closed-loop control system has a predefined Lyapunov function, represented by the instantaneous energy. Notably, the control algorithms do not require knowledge of the object's parameters or differentiation operations, which facilitates their practical implementation. The regulator parameters consist solely of coefficients used to specify the desired duration and shape of current and motor speed transient processes. The vector speed control system comprises two controllers for the stator current components and the motor speed controller. All regulators operate in sliding mode. The output signals of the stator current component controllers and speed vary discontinuously from maximum to minimum values. Simulation results demonstrate the effectiveness and high-quality performance of the control algorithms. To determine the control performance indicators for the three synthesized speed controllers, the motor startup trajectory is formed from characteristic segments of constant, linearly increasing, and parabolic signals. The speed control algorithm with a first-order asymptote ensures zero tracking error only for a constant reference signal. With a linearly increasing reference signal, the steady-state relative tracking error is 2,5 %, while for a parabolic reference signal, the error varies between zero and 2,5 %. The second-order asymptotic speed control algorithm ensures zero steady-state tracking error for constant and linearly increasing reference signals, and for a parabolic reference signal, the steady-state relative tracking error is 0,125 %. The third-order asymptotic speed control algorithm ensures zero steady-state tracking error for constant, linearly increasing, and parabolic reference signals, with a maximum dynamic relative tracking error of 0,05 %.
ENSURING THE THREAD CAPACITY OF ELECTRICAL TRANSMISSION LINES UNDER THE CONDITIONS OF THEIR RESERVATION
Authors: Omelchuk Anatoli , Zakolodyazhnyy Volodymyr
Published: May 2024

A method of increasing the power transmission capacity in the post-emergency mode is considered, when a redundant line is connected to one of the working power transmission lines (LEP) with a voltage of 10 kV using the point of automatic switching on of the reserve (AVR). The effectiveness of such redundancy in most cases turns out to be low due to the limited capacity of trunk sections of mutually reserved lines with smaller cross-sections of wires at the end sections of these lines, which were built as radial lines. This leads to increased losses of active power and voltage, and, as a result, unacceptable deviation of voltage in remote load nodes of the redundant power transmission line. In order to improve the parameters of the operation mode of power transmission, it is proposed to use devices of longitudinal capacitive compensation and reactive power compensation in the scheme of the AVR point. An assessment of the effectiveness of the proposed measure was made.
ANALYTICAL SOLUTION OF THE DIFFERENTIAL EQUATION OF HEAT CONDUCTIVITY FOR DAMAGED THERMAL INSULATION OF PIPELINES
Authors: Ganzha Anton , Kornelyuk Viktoriia , Marchenko Natalia
Published: May 2024

For heat supply systems of Ukraine, the determination and forecasting of thermal energy losses during the transportation of heat carrier is an urgent problem. The thermal lines of the heating networks are long and its insulation is damaged. Installation of heat energy metering devices at all sources and all consumers (i.e. buildings) without exception allows determining and forecasting real heat losses in the heat network, but this is a difficult task, not all consumers and sources are actually covered by heat consumption accounting. The task of determining heat losses is also relevant for energy management systems of heat supply systems, energy companies and industry. The solution to the problem is proposed by a separate mathematical modeling of the temperature state of the section of the damaged insulating layer with the determination of the heat flow through it. It is proposed to solve the problem by the method of analytical solution of the differential equation of heat conduction with boundary conditions of the third kind. With the uniform distribution of characteristic damages along the total length of the pipeline, knowing the limits of damage influence, the share of insulation damage and the number of damages on the pipeline, it is possible to determine the real heat flow from the outer surface of the pipelines, including coefficient of increase of heat losses on the section of the heat pipe in relation to those determined by regulatory documents. Traditionally, one-dimensional models or determinations of the two-dimensional temperature field and actual heat fluxes in a cross-section to the axis of a characteristic damaged section of insulation are considered. But this does not take into account the two-dimensionality of the temperature field of the damaged layer of insulation along the length (that is, along the axis) of the pipeline. Therefore, the purpose of this work is to develop a methodology for determining heat losses through pipelines, taking into account the damage to their insulation and the distribution of characteristic damages along the length. The following simulation was carried out for one of the areas. Also, experimental and numerical studies using the finite difference method in combination with the method of running variable directions for similar models confirmed the coincidence of the analytical solution of the proposed model and the finite difference model within the permissible error.
FEATURES OF CREATION OF THE SMART MONITORING SYSTEMS FOR MICROGRIDS
Authors: Derevianko Denys , Perehuda Oleksandra
Published: May 2024

In this paper, an analysis of the main requirements for control systems in Microgrid is conducted. The main objectives of the implementation of Microgrid systems were determined and, based on the performed analysis, the requirements for Smart-monitoring systems were systematized. The components of Smart-monitoring systems, which include: communication software platform, hardware communication platform and types of equipment of DG sources for Microgrid systems were analyzed. It is proposed to build Smart-monitoring systems for Microgrid systems on the basis of the SGAM model, taking into account various models of aggregation of different types of DG sources within the framework of Microgrid systems. The proposed structure of the Smart-monitoring system for Microgrid systems with various DG sources makes it possible to effectively aggregate DG sources and prosumers and to carry out effective dispatching of generating capacities based on market mechanisms of their interaction with consumers and among themselves.
RISK ASSESSMENT FOR THE DEVELOPMENT OF THE EXEMPLIFIED TERRITORIES
Authors: Remez Natalia , Bronytskyi Vadym , Hrebeniuk Tetiana
Published: May 2024

The paper explores the risks associated with exempted and liberated territories that were previously used for certain industrial, commercial, agricultural or other activities. Such territories were captured or used by military forces during the war and then liberated or abandoned and left unattended, or were disturbed by natural disasters, man-made accidents, etc. The aim of the article is to analyze the possibility of their further use and rehabilitation.
The following indicators of risk sources can be identified in such areas: presence of explosive objects; level of soil and water contamination; presence of chemical, biological or radiation contamination; degree of damage to infrastructure and building structures; risk of dangerous situations and accidents; impact on the health and safety of the local population; possibility of spreading infectious diseases; presence of unexploded or uncontrolled explosive materials; risk of re-invasion by enemy forces; potential environmental damage; and potential environmental impact. Based on the analysis of these indicators, they were summarized and grouped into six main risk indicators: demining of territories; efficiency of demining and disposal of remnants of military equipment, mines, etc.; safety and efficiency of demining and disposal technologies; degree of contamination of the demined territories after demining and disposal; level of safety assessment of the population living in these territories; return of vital infrastructure. An expert assessment methodology was applied, which includes an analysis of the severity of the consequences and the likelihood of their occurrence. The risks were ranked using the method of pairwise comparisons. The results of the study can be used to develop strategies for the further use and rehabilitation of the affected areas.
The results of the study indicate the need for systematic monitoring and control of the exempted and liberated territories in order to prevent possible environmental and socio-economic problems. To ensure sustainable development and conservation of natural resources, due attention should be paid to the issues of environmental safety and rehabilitation of these territories. Further research in this area will allow developing more effective strategies for the use and rehabilitation of exempted areas, taking into account current environmental and socio-economic challenges.
Nagorno-Karabakh Conflict (2020–2023): Realities and Forecasts
Authors: Mahmudova Z.
Published: May 2024

The article analyzes results of the events in the Nagorno-Karabakh conflict zone from 2020 to 2023, as well as their reflection in works of political scientists. The study is based on analysis of open sources with expert assessments and judgments, as well as on works in international relations theory. Main conclusion is drawn about reasons that may cause inaccuracies in political forecasting. The factors that had a negative impact on the consistency of forecasts of development of the situation around Nagorno-Karabakh are determined. Those are the following: obvious abstraction from the position of the Russian Ministry of Foreign Affairs, inattention to processes taking place within Azerbaijani society, emotional involvement of a part of expert community in conflict interaction, difficulties in accurate defining Armenia's goals regarding Nagorno-Karabakh during the mentioned period.
Changes in the Sectoral Structure of Employment in Kazakhstan: Trends and Prospects
Authors: Dodonov V.
Published: May 2024

The subject of the study is the processes of changing the sectoral structure of employment in Kazakhstan. The purpose of the work is to analyze these changes and forecast the structure of employment by economic activity in the medium term. The relevance of the study is due to the need to understand the intensive dynamics of the sectoral structure of employment and predict its changes under the influence of many different factors. The scientific novelty consists in identifying a weak relationship between changes in the structure of employment and the economic structure in Kazakhstan, which allows forecasting employment based on extrapolation of the prevailing trends. The research methods are: dynamic series analysis, comparative analysis, deduction, modeling. In the course of the study, the author obtained the following results: a weak relationship between changes in the structure of employment by economic activity and the structure of Kazakhstan's GDP was revealed; the main trends of changes in the share of employment of the main types of economic activity are revealed; a forecast assessment of the structure of employment by economic activity in the medium term is given. The author draws conclusions about a further reduction in the aggregate share of employment in the sectors of production of goods and an increase in employment in the service sector; about the outstripping growth of employment in activities with predominantly government financing; about the lagging growth of employment in the manufacturing industry and the continued decline in employment in agriculture in Kazakhstan.
The Factors of Institutional Dynamic of Regional Integration on the Example of ASEAN and the EAEU
Authors: Martynova E.
Published: May 2024

The purpose of this article is a comparative analysis of the evolution and dynamics of development of two integration unions – ASEAN and the EAEU. The article examines the similarities and differences between these international organizations as well as the political and economic reasons that influenced on the evolution of these associations. In addition the article provides a list of the most successful practices that can be considered as the main achievements of these regional blocks. According to the author, the presence of a large number of common features, problems and similar agendas between the EAEU and ASEAN makes a comparative analysis of these organizations relevant and appropriate.
The Convergence of Macroeconomic Policies of Russia and Belarus: Union Building in 2021–2023
Authors: Prikhodko A.
Published: May 2024

On January 29, 2024, at the meeting of the Higher State Council of the Union State, Vladimir Putin and Alexander Lukashenko summed up the results of the implementation of 28 union programs, which were adopted on November 4, 2021 in a solemn and symbolic atmosphere marking a new stage of union construction. The formal deadlines for the implementation of these programs ended on January 1, 2024. As a result of two years, officials and experts generally positively assess the work done, but there is still no comprehensive analysis and comparison of planned tasks and actual results in either domestic or in foreign literature. The author of this article trayed to make this comparison and compare the expectations of the end of 2021 with the results of the beginning of 2024. The text is limited to the analysis of the first Union program for the convergence of macroeconomic policies of Russia and Belarus. The author concluded that the countries had done a lot of important work, which, nevertheless, was not completed in full and in accordance with the tasks announced in November 2021. It is premature to talk about the formation of a single economic space based on the principle of “two states – one economy”, therefore, this direction remains a task for the future.
Systematic Review of Accelerating Time-Series Biosignal Machine Learning Processes Using GPU Architectures
Authors: Ketola Ellen , Imtiaz Masudul
Published: May 2024

Background: Time-series biosignal data, representative of a physiological process, is often applied to time-sensitive machine learning applications that benefit from acceleration. Medical and research applications that process biosignal data in real-time may utilize new hardware architecture by switching from CPU to GPU devices to take advantage of the data processing speedups. In order to utilize machine learning kernels that are typically employed by a CPU on a GPU, the machine learning kernel must be reimplemented using custom compilers that can take advantage of GPU architecture. Objectives: The primary objective is to evaluate the speed of CPU-based machine learning algorithms commonly employed in biosignal process- ing and compare the speedup improvements obtained through GPU acceleration. Methods: A systematic search was conducted across multiple databases to identify studies employing GPU acceleration in biosignal processing. Inclusion and exclusion criteria are defined for GPU accel- eration studies. In this literature review, 12 studies of GPU kernel development for traditionally CPU-based kernels are analyzed. Results: It is found that a positive speedup occurs when using GPU kernels over traditional CPU-based algorithms in all instances. The speedup of GPU over CPU performance ranges between 1.87 to 27018.27 times faster. Conclusions: This review will contribute to the understanding of the role of GPU kernel development in biosignal processing, providing insights into performance improvements obtained by current GPU kernel development. The results indicate that GPU kernel development is a plausible direction to obtain real-time biosignal-based systems.
Development of Mineral Fillers for Acid Resistant Filling Composites
Authors: Akhmetova Saule
Published: May 2024

The article presents the results of research on the production of effective inorganic fillers and chemically resistant composite polymer-mineral materials based on industrial waste. The aim of the work is to develop the technological foundations for the production of inorganic fillers and highly filled filling compositions for use in chlorine-containing media. Materials with high resistance to hydrochloric acid are graphite and quartz sand. Thermal power plant (TPP) ash was used as an acid-resistant filler in the compositions. The simplex lattice planning method was used to determine the areas of compositions with the best properties. Two components were selected: formaldehyde rubber resin and mineral filler (TPP ash) as a binder. As the third component, hydrolytically active fillers were used - anhydrite, phosphogypsum and phosphorus production slag. A preliminary operation was performed to remove hygroscopic moisture from the filler.The influence of the nature of mineral fillers on the chemical stability and durability of the obtained composites is investigated. The nature of the interaction of mineral fillers with a polymer binder was determined, and chemical interaction of the hydroxyl groups of the filler and the methyl groups of the polymer took place. The mathematical planning method was used to optimize the chemical resistance and durability of the compositions of the studied substances. Based on the results of this study, optimal compositions of compositions, anhydrite, phosphogypsum and phosphoric slag were selected. These composites, with the highest possible degree of filling, have high target characteristics.
Evidences of Climate Changes and Conservation Needs for Halting Further Deterioration of Small Glacial Lakes
Authors: Shumka Spase , Shumka Laura , Spoljar Maria , Shuka Lulëzim
Published: May 2024

Keywords: standing water bodies, glacial lakes, freshwater biodiversity, eutrophication; nature conservation network
Unmasking AI-Generated Fake News Across Multiple Domains
Authors: Nanabala Chiradeep , Mohan Chilukuri K. , Zafarani Reza
Published: May 2024

The spread of fake news poses a serious threat to public trust and informed decision-making. The emergence of AI-generated fake news exacerbates this issue, as it can be produced more rapidly and convincingly than human-generated content. Addressing this issue, our paper introduces a robust approach to detect AI-generated fake news that is applicable across major disinformation domains: Politics and Elections, Health and Medicine, Science and Technology, and Entertainment and Celebrities. Our models differentiate between AI-generated and human-generated news articles while assessing their truthfulness. Utilizing large language models such as ChatGPT, we curated datasets spanning both AI and human generated fake and genuine news. Following extensive data preprocessing and the application of diverse feature extraction techniques, our models were trained using multiple machine learning algorithms. Our results show the feasibility of accurately identifying AI-generated fake news, thereby adding a significant layer of defense in combating misinformation across various sectors. In addition, we have explored the potential utility of transferable machine learning models trained on data from one domain (e.g., politics), when tested on another domain (e.g., health).
Clustering Coefficient of Lexicographic Products
Authors: Holly Melissa
Published: May 2024

Clustering coefficient measures are key complex network analysis tools. We examine local and global clustering coefficient measures with respect to the lexicographic graph product. As a preliminary condition, we analyze the $K_3$ subgraph structure focused on vertex inclusion with respect to the product graph. From this structure, we determine both the clustering coefficient for the product graph vertices and the average clustering coefficient for the product graph.
Solving Apollonius’ Problem through Relativity
Authors: Mantz Christiaan
Published: May 2024

We solve the problem of Apollonius by applying the Lorentz transformation within the frame- work of special relativity to go to a frame of simultaneity, where the solutions are the circum- center. We transform back to get the solutions in a general frame. We show that the solutions in a general frame are the foci of the ellipse going through the centers of the given 3 circles.
PICKY EATING BEHAVIOR ON THE INCIDENT OF STUNTING IN CHILDREN TODDLERS IN TIRTOMOYO, WONOGIRI
Authors: Sutanto Alfiani Vivi , Nurhidayah Lia Ratih
Published: May 2024

Background: The process of development and growth during toddlerhood is determined by the food consumed every day. Giving the body the appropriate nutrition it needs will produce good development. However, various obstacles often occur, such as eating disorders in children. One of the eating disorders in children is the habit of refusing food and being picky about food, often called picky eating, which will have an impact on their nutritional status. Thin or poor nutritional status in children under five can put them at risk of stunting. Stunting is a physical growth disorder characterized by a decrease in growth rate and the impact of a nutritional imbalance.

Methods: This research is quantitative, with a type of observational analytical research. This research was conducted from January to October 2023 in Tirtomoyo, Wonogiri, with a population of 55 children and a sample of 50 children. A questionnaire was developed by researchers based on the Picky Eating Behavior Rating Scale and Transcultural Nursing Theory. Whereas the connection between variables is analyzed using the analysis of simple linear regression through ANOVA and power tables, the influence between variables is observed through the model summary table on value correlation (R). The license number of research is 071/277.

Result: There is an influence of the behavior of picky eaters against the incidence of stunting among toddlers in the Tirtomoyo, Wonogiri, with a level of significance (Sig.) of 0.004 and a value coefficient determination (R square) of 0.164.

Conclusion: The behavior of picky eaters can influence the incidence of stunting in children.

 

Keywords: Behavior picky food (Picky Eating), Stunting, Toddlers
THE CORRELATION BETWEEN MEAN ARTERIAL PRESSURE (MAP) EXAMINATION AND THE INCIDENCE OF PREECLAMPSIA
Authors: Sulistiawati Aisyah , Rosalinna Rosalinna , Yulaikah Siti
Published: May 2024

Background : Preeclampsia is the second contributor to death after bleeding. Effort are made to detect the incidence of preeclampsia early, one of which uses the mean arterial pressure examination.

Objective : To determine the correlation of mean arterial pressure (MAP) examination with the incidence of preeclampsia, determine the characteristics of pregnant women based on parity, age and MAP examination results for case and control group, analyze the correlation between MAP examination with the incidence of preeclampsia at  PKU Muhammadiyah Delanggu Hospital.

Methods : The type of research used was quantitative  case control design and data collection using retrospective. The sampling technique was purposive sampling. The number of sampels in this study were 66 respondents with a ratio of 1:1 between cases and controls, for cases 33 respondents and for controls 33 respondents from medical record data at PKU Muhammadiyah Delanggu Hospital in 2022. Data analysis technique used non-parametric statistics chi square with a significance level of 0,05.

Results : According to the results of statistical tests with the Fisher Exact Chi Square test with a confidence level of  95% (𝜎 = 5) and result of Exact. Sig. (2-Sided) is 0,000 (Exact. Sig (2-Sided) < 0,05).

Conclusion :There is a statistically significant correlation between MAP examination and the occurrence of preeclampsia at PKU Muhammadiyah Delanggu Hospital.

 
Key word :Mean Arterial Pressure Examination, Preeclampsia
Implementation of Blue Economy Policy in Tourism Sector in Aceh Province
Authors: Hajad Vellayati , Ikhsan Ikhsan , Setiawan Deni
Published: May 2024

Blue economy is a concept about economic activities in or through sea and fresh water. This includes all forms of marine tourism, coastal tourism and freshwater tourism activities, which significantly contribute to sustainable economic practices in the region. The qualitative method has a case study approach with Aceh Province as the research location. The research results show that the blue economy concept is one of the government's solutions to economic and environmental problems. In the process of implementing tourism policies that have a blue economy feel, the Aceh Provincial Government has great authority, which is contained in the Aceh Government's nine authorities, namely establishing a development master plan, coordinating tourism implementation, carrying out registration, recording and data collection on business registration, determining tourism destinations, facilitating promotion of tourism destinations and tourism products, maintaining assets, allocating budgets, forming unique teams to assist agencies. This study concludes that the tourism sector has made a significant contribution to the development of the blue economy concept, so the tourism sector must ensure that tourism-related activities are included in the planning and development of blue economy policies in the tourism sector in Aceh Province, such as minimizing waste, multiplier effect, social inclusion, and innovation and adaptive. This study suggests that the blue economy should be utilized as a conceptual resource so that academics and industry can better connect with the results of neighbouring blue sectors, understand and respond to transformations in blue spaces, and advocate for sustainable tourism in the aquatic world.
Vowel Recognition Revolutionizes Early Childhood Education Globally
Authors: SetiaWati Dina Candra Eka , Iffatur Rocmah Luluk
Published: May 2024

This study addresses the challenge of vowel recognition among 3-4-year-old children, focusing on vowels like “e,” “u,” and “o.” Using a Classroom Action Research (CAR) approach, twelve children at KB Aisyiyah 17 Jasem participated in pre-cycle, cycle I, and cycle II interventions. The results showed a significant improvement from a 33.3% recognition rate in the pre-cycle to 95.3% in cycle II, indicating the effectiveness of using ball letter media. This research highlights the importance of tailored teaching methods in enhancing early childhood learning outcomes, particularly in improving vowel recognition skills.
Highlight:

Tailored CAR approach boosts vowel recognition in early education.
Effective ball letter media enhances learning outcomes in young children.
Notable 62% increase shows success in improving vowel recognition skills.

Keyword: Vowel recognition, Early childhood education, Classroom Action Research, Ball letter media, Learning outcomes
Offshore Rigless Coiled Tubing Operations Drives a Paradigm Shift of Cost-Effective Interventions in Gulf of Suez, Egypt
Authors: Korish M. , Ibrahim M. , Mousa H. , Basyouni A. , Elshiekh M. , Ghonim A.
Published: May 2024

Gulf of Suez is one of the prolific Oil & gas areas in the world. Oil Production in this area started as early as 1960s when Giant Morgan Field was discovered and followed by discoveries of Small to Moderate size Fields in the same basin. and like any aging basin as time goes on well interventions become vital for maintaining a sustainable production and coiled tubing is no exception in this regard. which drives petroleum engineers to find solutions to do cost effective well interventions that can extend life of a mature field.

By that time of exploration and development of Gulf of Suez fields, the basis of design of many offshore structures were different from what we would do today. That many fields were developed using smaller satellite platforms with limited space and limited loading capacity of working deck. this mode of design in addition to the normal aging of platforms lead to a generalized procedure for coiled tubing operations whenever needed; that requires barge or rig assistance to accommodate the necessary coiled tubing equipment.

Few trials across history were made to do rigless coiled tubing operations in larger platforms that may have crane to support coiled tubing record, however these practices were stopped due to tedious and heavy logistics, and limited capabilities of the set up that operations were limited to jetting operations.

Adding the cost of barge or rig to coiled tubing operations drives the cost high and restrict the applicability to high certainty value intervention and many other uncertain opportunities will be overlooked due to inherent cost. In order to give chance to do moderate to high operationally risky wells with high uncertainty in subsurface value it was necessary to find alternative rigless approaches.

During 2022 & 2023 a multidisciplinary analysis was done to explore innovative options to do rigless coiled tubing operations considering all the constraints through layout optimization, new technology to accommodate coiled tubing rig ups and logistics optimization & comparative evaluation of different options to deliver cost effective intervention.

Many of the locations analyzed were confirmed feasible for the new setup of offshore rigless interventions and proof of concept campaigns commenced testing the operations on larger platforms then smaller ones. by the time of writing the abstract 4 Coiled tubing campaigns were completed rigless and succeeded to add more than 6500 BOPD & achieve savings of more than 10 M$.

Revision of well intervention strategies and procedures in mature offshore fields can lead to a huge cost saving as well as a production leap.
Room temperature multiferroic nanostructured Gallium Ferrite based visible light driven photocatalyst for degradation of azine dyes
Authors: Kujur Vidya Spriha , Dhiman Tarun Kumar , Singh Satyendra
Published: May 2024

Gallium ferrite nanoparticles (GFOnps) were synthesized using modified sol-gel technique and its physical, chemical, and optical properties were studied. GFOnps was synthesised at room temperature and calcined at 900°C to obtain pure orthorhombic (Pc21n) phase of GFOnps. They were evaluated for the photocatalytic degradation of azine dyes: methyl violet (MV) and methylene blue (MB). The structural studies performed using XRD and Raman spectroscopy, XRD and Raman spectra showed pure phase with orthorhombic structure (Pc21n) without any impurities. The UV-Vis measurement showed a broad absorption band around 500nm-800nm range. The energy band gap calculation using the Tauc plot was performed and Eg was found to be 2.08eV. EDS measurement displayed the complete elemental composition. Transmission electron microscopy was used to study the morphological and structural properties of GFOnps. The observation showed evenly distributed particles at the surface with particle size ranging from 20-40nm. Multiferroic property analysis of GFOnps were performed using VSM and PE measurements respectively at room temperature. In PE study, irregular hysteresis loop was observed, while in magnetic measurement ferrimagnetic hysteresis loop was obtained which was not found to be saturating at the applied magnetic field of 6T. In the photocatalytic degradation study, dye degradation percentage was 97% for Methyl Violet and 56.6% for Methylene Blue in 120 min and 150 min, respectively. Cyclic study showed re-usability of the GFOnps for up to 3 cycles. Thus, GFOnps have showcased excellent photocatalytic performance over two azine dyes and also showed room temperature multiferroic performance.
Microservice Scheduling Strategy Based on Queuing Network in Cloud Edge Environment
Authors: Liang Xiangyang , Wang Hui , Wei Jingyun , Zhang Junjie , Qiang Le
Published: May 2024

Complex Internet of Things (IoT) applications provide services in the form of microservices at resource-constrained edge nodes. As the complexity of systems increases, the interactions and collaboration relationships, such as invocations and dependencies implied in the microservice combinations become more and more complex. Therefore, resource and latency issues arising from the concurrent execution of multiple microservices are a significant challenge in offloading computing tasks. To improve the efficiency of microservice scheduling, a microservice scheduling model based on queuing network is constructed for different arrival modes, processing types, workloads, and response times in large-scale IoT scenarios. Moreover, the mean response time of the task is calculated by analyzing the workload ratio of both edge servers as well as cloud servers, the arrival rate of different tasks, average number of nodes visited. Thus, for a given load, the optimal solution of the queuing network steady state can be obtained. As the workload increases, more and more microservices need to be migrated to cloud servers to get the minimum mean response time, while it is straightforward to get the respective workload ratios of the edge servers and the cloud servers. Finally, the scheduling policy is analyzed using different arrival rates of real workflows with different numbers of edge servers and cloud servers in cloud edge environments. It is verified that the optimal solution proposed in the paper reduces the mean response time of tasks and effectively meets the requirement of minimizing latency in microservices scheduling.
Prenatal genetic diagnosis of Williams-Beuren syndrome with atypical and complex phenotypes using SNP array and whole exome sequencing
Authors: Liu weiqiang , Cao Dingya , Song Jinshuang , Zhang Tong , Zeng Shuxian , Cong Xiaoyi , Luo Xiaojin , Hu Liang , Pei Yuanyuan , Chen Min
Published: May 2024

Background
Williams-Beuren syndrome (WBS) is a severe congenital disorder. Prenatal diagnosis of WBS is difficult because the phenotypes of WBS fetuses are atypical or incomplete. This study used ultrasound, SNP array, and whole exome sequencing to analyze the association between genotype and complex phenotype in fetuses with WBS.
Methods
Chromosomal microarray analysis (CMA) and whole genome sequencing were performed in pregnant women with prenatal diagnosis. Genome-wide copy number variants (CNVs), regions of homozygosity (ROH), single nucleotide variants (SNVs), small insertions and deletions, and splice sites were analyzed.
Results
The 7q11.23 deletion was identified in seven fetuses out of 6718 prenatal diagnostic samples; ultrasound revealed that two fetuses had apparent cardiovascular anomalies; one fetus had persistent left superior vena cava and intrauterine growth retardation (IUGR). Two fetuses had polycystic kidney dysplasia, one of which was associated with a small amount of tricuspid regurgitation; the other two fetuses had no apparent ultrasound abnormalities. Detailed genetic analysis revealed CNVs ranging in size from 1.43 megabase pairs (Mb) to 1.66 Mb, affecting 34 to 41 genes, respectively. On average, 1.0 additional CNVs larger than 100 kilobase pairs of unknown significance and 0.43 ROH larger than 5 Mb were detected in these cases. The pathogenic or likely pathogenic SNV or splice site with the function of renal development and cardiovascular development was also identified in these cases.
Conclusion
The phenotype of WBS fetuses is atypical and complex, and the complex phenotype does not exclude association with other variants within the genome.
Knowledge, Attitude and Practice of Healthcare Workers on Isoniazid Preventive Treatment in Tanzania; A Health Facility-Based Cross-Sectional Study
Authors: Mshiu Johnson Jeremia , Alexander Felix Christopher , Rushaigo Anelisa Martin , Nyigo Vitus Alberto , Majaha Melkisedeck Lolakeha , Maokola Werner Meinrad , Ngowi Bernard James , Wiketye Victor Enock , Kimbute Omary Abdallah , Mgina Erick Josephat , Makasi Charles Elias , Range Nyagosya Segere , Kilale Andrew Martin
Published: May 2024

Background: Tuberculosis (TB) remains a significant public health concern globally, particularly in regions with a high prevalence of HIV/AIDS. In Tanzania, the co-occurrence of TB and HIV poses a substantial challenge to healthcare systems. Isoniazid Preventive Therapy (IPT) has become an important intervention to mitigate the risk of TB infection among individuals living with HIV. Despite its proven efficacy, the extent of knowledge, attitude, and practice of healthcare workers (HCWs) in Tanzania is not well-documented.
Methods: A cross-sectional study was carried out among healthcare workers working at TB/HIV clinics in 12 regions of Tanzania mainland. A semi-structured questionnaire was administered to the respondents consisting of social demographic characteristics, knowledge, attitude, and practice questions. Data were analyzed using Stata version 14.0.
Results:a total of 464 respondents were interviewed, with 282 (60.8%) being female. The mean age was 36.4 years (SD=11.0). Among the interviewed, 255 (55.0%) were nurses. Regarding knowledge, attitude, and practice on IPT, 217 (46.8%), 220 (47.0%), and 422 (90.9%) respondents respectively demonstrated adequacy in these domains. Factors such as gender, university education, professional role in healthcare practice, cumulative work experience of one year or more, tenure at a TB/HIV clinic of one year or longer, and attendance at IPT-related training emerged as significant determinants influencing respondents' knowledge, attitude, and practice towards IPT.
Conclusion: The findings underscored a notable knowledge gap and a less favourable attitude towards IPT among HCWs, despite commendable practices. Addressing this disparity through targeted training interventions for healthcare workers holds promise for enhancing their understanding and attitude toward IPT, thereby fostering increased acceptance and utilization of this preventive therapy.
Altered brain network dynamics in motor functional neurological disorders: The role of the right temporo-parietal junction.
Authors: Weber Samantha , Bühler Janine , Bolton Thomas , Aybek Selma
Published: May 2024

Functional neurological disorders’ (FND) neuropathophysiology has been described as multi-network disturbances including aberrancies in the agency network highlighting the role of the right temporo-parietal junction (rTPJ). Refining the relevance of the rTPJ. we applied a co-activation pattern (CAP) based approach using the rTPJ as seed in 58 patients with motor FND compared to 58 age- and sex-matched healthy controls. Firstly, CAPs were derived from HC to identify functional alteration in the rTPJ network in FND patients. Secondly, motor subgroup characteristics in patients were examined using CAPs derived from the patient group. Compared to HC, patients were found to enter less frequently a state characterized by salience network and default mode network (DMN) co-activation along with executive control and somatomotor networks co-deactivation. Additionally, patients entered more often a state depicted by somatomotor-salience co-activation and DMN co-deactivation. Comparing motor subgroups, patients with functional weakness remained longer in a state characterised by attention network co-activation and DMN co-deactivation compared to patients with no functional weakness. FND patients overall exhibited a reduced coupling of the DMN and an increased coupling of the somatomotor network with the rTPJ compared to controls. Patient subgroups differed regarding coupling between rTPJ to attention network and DMN. rTPJ dynamic network alterations might reflect hampered flexibility in brain state switching and altered self-referential processes linked to impaired motor planning and execution, which seems to also differ between symptom types, indicating a potential phenotypic biomarker.
Analysis of the empowerment of Disabled elderly people in rural areas in Henan province: a survey
Authors: Li Xizheng , Yan Yuwen , Zhang Huizhong , Zhang Yan
Published: May 2024

Objective: To understand the health empowerment status of the rural disabled elderly, and analyze the influencing factors, to provide a reference for targeted intervention measures.
Methods: The Group sampling method investigated 208 disabled elderly people in a rural community in Henan Province.
Results: The total level of the rural disability score (55.43 ± 12.04), and the average score (2.42± 0.53), at the middle level, where the average score of each dimension is:.1Self-identification (113 ± 3.12), individual control (10.79 ± 3.46), decision participation (9.82 ± 2.79), knowledge and understanding (10.28 ± 3.26), empowerment (10.33 ± 3.03), The multiple regression results showed that the number of children, the type of chronic diseases with education level and the degree of disability were the influencing factors affecting the empowerment level of the disabled rural elderly (P <0.05).
Conclusion: The current situation of empowerment of the disabled elderly in rural areas is at the middle level, especially in terms of self-decision, health records, and smart pension, which can be implemented or improved for the current empowerment intervention program, and accurate empowerment can be achieved by stimulating the internal potential of the disabled elderly and improving their self-health management awareness.
Understanding the Link Between Physical Exercise, Autonomous Motivation, Exercise Dependence, and Adult ADHD Symptoms: A Cross-Sectional Study
Authors: Tucker Rory , Reed Phil , Williams Claire
Published: May 2024

Background
Physical Activity (PA) and Physical Exercise (PE) tends to reduce ADHD symptoms in children; however, the relationship might be more complicated within adults, and differ dependent on ADHD-symptom subtypes. Given the higher prevalence of addiction in individuals with ADHD, investigating the relationship between Exercise Dependence (ED), ADHD, and intrinsic/extrinsic motivations is crucial when considering PE as a potential intervention for ADHD. This cross-sectional study investigated the relationship between PE, ADHD symptoms, intrinsic/extrinsic motivation, and ED.
Methods
152 adult participants (77.63% female) completed an online survey measuring: PE level (IPAQ-L); ADHD symptomatology (ADHD-RS-IV); subclinical ADHD diagnosis (ADHD-RS-IV); ED (EDS-R), and autonomous exercise motivation (BREQ-3).
Results
Positive correlations were found between ADHD symptomatology (total and hyperactive) with ED, and negative correlations were found between ADHD symptomatology (total and hyperactive) with autonomous exercise motivation. Additionally, a significant positive correlation was observed between ED and autonomous exercise motivation.
Conclusions
Promoting intrinsic exercise motivation in adults with ADHD could potentially lead to increased PE engagement. However, caution is advised, as intrinsic motivation was also positively associated with ED. Further research is needed to explore strategies for optimising the positive effects of motivation-related interventions, while mitigating potential risks.