bluuebunny/crossref_metadata_2025 huggingface dataset:
On Mersenne Numbers and Their Bihyperbolic Generalizations
Authors: Bród Dorota , Szynal-Liana Anetta
Published: August 2024

In this paper, we introduce Mersenne and Mersenne–Lucas bihyperbolic numbers, i.e. bihyperbolic numbers whose coefficients are consecutive Mersenne and Mersenne–Lucas numbers. Moreover, we study one parameter generalizations of Mersenne and Mersenne–Lucas bihyperbolic numbers. We present some properties of these numbers and relations between them.
Exploring the potential of resveratrol as feed supplement in aquaculture
Authors: Malarvizhi Kavitha , Pandi Kalaiselvan , Ranjan Amit
Published: August 2024

Aquaculture serves as a crucial role in meeting the global seafood demand. However, it grapples with issues associated with disease outbreaks, oxidative stress, and the imperative of fostering sustainable development. The supplementation of resveratrol in aquafeed has demonstrated the potential in addressing these issues. Resveratrol (RSV), a polyphenolic bioactive compound known for its antioxidant, anti-inflammatory, and neuroprotective properties, has garnered attention in recent research. Studies suggest resveratrol supplementation in feed, typically at the concentration of 0.5-1%, enhances growth performances, immune responses, resistance against disease, and stress tolerance in aquatic species. Despite its high metabolic rate and shorter half-life, the bioactive nature of resveratrol makes it a recommended phytochemical in aquafeed, highlighting its potential to improve overall aquaculture health and sustainability. This review is designed to give a comprehensive knowledge about the effects of resveratrol in fish, focusing on its antioxidant properties, influence on growth, impact on immune response, and benefits as a feed supplement.
Overview of aquaculture Artificial Intelligence (AAI) applications: enhance sustainability and productivity, reduce labor costs, and increase the quality of aquatic products
Authors: Ragab Sherine , Hoseinifar Seyed Hossein , Doan Hien Van , Rossi Waldemar , Davies Simon , Ashour Mohamed , El-Haroun Ehab
Published: August 2024

The current work investigates the prospective applications of Artificial Intelligence (AI) in the aquaculture industry. AI depends on collecting, validating, and analyzing data from several aspects using sensor readings, and feeding data sheets. AI is an essential tool that can monitor fish behavior and increase the resilience and quality of seafood products. Furthermore, AI algorithms can early detect potential pathogen infections and disease outbreaks, allowing aquaculture stakeholders to take timely preventive measures and subsequently make the proper decision in an appropriate time. AI algorithms can predict ecological conditions that should help aquaculture farmers adopt strategies and plans to avoid negative impacts on the fish farms and create an easy and safe environment for fish production. In addition, using AI aids to analyze and collect data regarding nutritional requirements, nutrient availability, and price could help the farmers to adjust and modify their diets to optimize feed formulations. Thus, using AI could help farmers to reduce labor costs, monitor aquatic animal’s growth, health, optimize feed formulation and reduce waste output and early detection of disease outbreaks. Overall, this review highlights the importance of using AI to achieve aquaculture sustainability and boost the net profits of farmers
Applications of CRISPR/Cas9 technology in mice and livestock genome editing: Current research
Authors: Maj Dorota , Górka Klaudiusz
Published: August 2024

Clustered regulatory interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR/Cas9) technology is a novel and one of the most promising gene editing methods. Here we review the current research on the use of CRISPR/Cas9 technology to edit the genomes of mice, rabbits, pigs, sheep, goats, and cattle, as well as current obstacles and perspectives that may arise thanks to this technology. CRISPR/Cas9 has an advantage over other gene editing methods because of its simple design and the ease of modifying multiple target sites (multiplexing). This technology allows for the creation of in vitro and in vivo models of many diseases, which may contribute to the development of new drugs and effective therapies. CRISPR/Cas9 can also revolutionize the meat, dairy, leather, and fur industries by genetically modifying animals to obtain different products.
Computational assessment of the toxicological profiles of various chemicals to which humans are exposed. A review
Authors: Dascalu Daniela , Ciorsac Alecu Aurel , Isvoran Adriana
Published: August 2024

This study contains a brief description of the common computational methods used in the prediction of the toxicological effects of chemical substances, and a synthetic review of the literature on the results of computational studies on the prediction of the toxicological effects of substances to which humans are frequently exposed: food additives, food contaminants, cosmetic ingredients, drug-related compounds and pesticides. The advantages and limitations of using current computational toxicology in assessing the toxicity of chemicals are also discussed.
Effects of a short-term wheelchair yoga intervention on balance in elderly women with neurodegenerative diseases: A preliminary study
Authors: Kornatovská Zuzana , Hill Martin , Krejčí Milada , Zwierzchowska Anna
Published: August 2024

Study aim: This study examined effects of practicing of the wheelchair yoga intervention for 4 weeks on static and dynamic balance and physical, mental and social health in elderly female wheelchair users with neurodegenerative diseases.

Material and methods: Elderly females (n = 22, mean age 75.1 ± 5.8 years), users of a wheelchair participated in the 4-week wheelchair yoga intervention program. Medical anamnesis, bioimpedance body composition assessment, Tinetti balance assessment tool, and the RAND 36 Short Form Health Survey (SF-36) were used in the pre – and post-measurements.

Results: Multivariate regression – orthogonal projections to latent structures (OPLS) and non-parametric comparisons revealed significant increase in the dynamic balance, total muscle mass, and the social score after the yoga program. Changes in the Tri-ponderal mass index and several indicators of mental health were the best mediators for the effect of the yoga program on dynamic balance.

Conclusions: Wheelchair yoga intervention program could be a beneficial rehabilitation method for stimulation of neuromotor functions associated with balance control in elderly females – users of a wheelchair due to neurodegenerative diseases.
Currency Exchange Rate Volatility as a Moderating Effect of the Gold and Coal Price Against Fund Age and Mutual Fund in Indonesia
Authors: Azis Musdalifah , Hidayati Tetra , Abidin Zainal , Jaafar Muhamad Sukor
Published: August 2024

Shifts in gold and coal prices have a crucial impact on the macro economy, especially investment growth. On a financial scale, there is still little discussion of the relationship between gold and coal prices and stock mutual funds. Also, the role of exchange rates and interest rates in moderating this relationship has not been examined. This research reviews the performance of exchange-traded funds (ETFs) in the scope of fund age and Indonesian stock mutual funds which are influenced by gold and coal prices with the moderating effect of interest rates and exchange rates. Core data was obtained from 20 companies as mutual fund owners officially registered with the Financial Services Authority (OJK) throughout 2019–2022. By operating Moderated Regression Analysis (MRA) into SmartPLS 4, there are interactions between prices and exchange rates, prices and interest rates, and prices and gold prices. As with the relationship between the age of ETF mutual funds traded on the Indonesian Stock Exchange (IDX) and the gold price, these two variables have a strong and positive correlation. This implies that relatively small changes in gold prices over the monitoring period may impact the fund age ETF. This positive association shows that an ETF investment can have its life extended by a relatively small increase in gold prices. This research indicates a strong causality, which improves the ETF’s performance on the IDX as fund age rises. Furthermore, the second model examines how fund age, gold, and coal have a direct impact on ETF mutual fund performance. It also looks closely at how indirectly coal, gold, and fund age affect ETF performance. The age of the fund, gold, coal, and exchange rates affect the performance of ETFs. While the effect is not statistically significant, interest rates, gold, coal, and fund age have a beneficial impact on ETF performance. Implications for policy makers to monitor and re-evaluate commodity price fluctuations using mining production regulation scenarios that are balanced with quality. Weaknesses of the current study such as the observation period need to be taken into consideration in future research.
Economic Growth and Environmental Sustainability determinants: a panel ARDL evidence for EU Countries
Authors: Bytyqi Ardita , Abazi-Alili Hyrije , Hadzimustafa Shenaj
Published: August 2024

Economic growth and environmental sustainability nowadays are considered to be of particular importance, so understanding the main contributing factors is very important as well. This paper aims to examine the common determinants of economic growth and environmental sustainability, inspect the relationship between these key elements, and check their significance in economic growth and environmental sustainability. With data from EU member states for a period of ten years (2011-2020) the panel autoregressive distributed lag technique (ARDL) is used for the aim of this paper. Common determinants such as recycling and environmental taxes were found to be the major contributors to economic growth in the long run. Recycling is found to be a major contributor to environmental sustainability as well, however, environmental taxes are detected to have a negative impact on environmental sustainability in the long run, but none of these determinants have any impact in the short run.
Managing Perceived Stress and Emotional Self-regulation for Sustainable Mental Health Practice
Authors: Varas-Julca Cecilia Margarita , Palacios-Serna Lina Iris , Santana-Mora Carlos Alberto
Published: August 2024

Objective: The objective was to determine the relationship between perceived stress and emotional self-regulation for the sustainable practice of mental health in university students in Peru.
 
Theoretical framework: The constant presence of tension experienced by students, consequently, triggers a series of manifestations such as: loss of motivation, feeling of failure, frustration, guilt and self-distrust, as well as difficulties in presenting effective coping strategies; causing the person to perceive their life as exhausting and uncontrollable, affecting all areas of their life (Estrada, 2021). Emotional self-regulation is conceptualized as the capacity that enables the subject to manage what they feel and efficiently face the demands of the environment; this, in turn, is considered a support strategy that facilitates the person to have a better performance in their environment and well-being with themselves, as well as to cope with stressful events that can generate dysfunctional behavior (Dominguez, 2018).
 
Methodology: The research is non-experimental and has a descriptive correlational design that allows to describe and explain the relationship between variables. 220 university students from the last cycles of the Psychology degree participated, of both genders. The instruments used were the Perceived Stress Scale (PSS) by Cohen et al. (1983) and the Emotion Regulation Questionnaire (ERQ-P) by Gross and John (2003).
 
 Results and discussion: The students present a medium level of perceived stress in 50.9%. While in emotional self-regulation they show a moderate level of 78.6%. Although the population evaluated has the capacity to cope at a very high level; the cognitive assessment is presented at a low level, which suggests that despite the strategies that the students have, these may be inefficient since a previous analysis of the situation is not carried out to determine the most adequate tool to address the problem.
 
Conclusion: Students use suppression as a self-regulation strategy, which, although it helps self-control at a given moment, is not considered the best way to cope since the inhibition of emotions generates higher levels of stress in the long term, affecting overall well-being and professional performance.
 
Implications: Based on the findings obtained, it is necessary to promote acceptance and emotional release, as well as the use of adaptive strategies to achieve effective self-regulation and preserve mental health.
Условия и противоречия периода становлении местного самоуправления на удаленных территориях в 1990-е – начале 2000-х гг. на примере Южно-Курильского муниципального образования
Authors: ЧЕРНОЛУЦКАЯ Елена Николаевна
Published: August 2024

The article, based on the case-study method, reveals the difficulties of the formation of local self-government in the 1990s in the Southern Kuril Islands as an area of the extreme Russian periphery. The main attention is paid to the activities of the mayor and his relationship with government structures. The insufficiency of socio-economic opportunities of the district in the full provision of self-government functions, low readiness of the local community for this, weak elaboration of the regulatory framework are revealed.
Pengaruh Return On Asset, Financing To Deposit Ratio, Capital Adequacy Ratio, dan Non Performing Financing Terhadap Pembiayaan Mudharabah
Authors: Idham M. Hanif , Fanani Baihaqi , Yunita Eva Anggara
Published: August 2024

Penelitian ini bertujuan untuk menguji bagaimana Return On Assets, Financing to Deposit Ratio, Capital Adequacy Ratio berpengaruh terhadap Non Performing Financing. Return On Assets berpengaruh positif secara signifikan terhadap pembiayaan mudharabah, Financing to Deposit Ratio berpengaruh positif secara signifikan terhadap pembiayaan mudharabah, Capital Adequacy Ratio berpengaruh negatif terhadap pembiayaan mudharabah, Non Performing Financing berpengaruh negatif terhadap pembiayaan mudharabah
Evaluación de la concentración de nitritos y nitratos en embutidos distribuidos en Cartagena, Colombia
Authors: Correa Turizo Rafael , Ahuemdo Monterrosa Maicol , Díaz Gómez Ivan , Baldiris-Navarro Ildefonso
Published: August 2024

La concentración de aditivos como nitritos y nitratos utilizados principalmente para conservar la carne roja en los embutidos, están siendo estudiados a nivel mundial por una posible relación de actividad carcinogénica. Por esta razón, en el presente trabajo se determinaron las concentraciones de estos aditivos en marcas comerciales y artesanales de salchichas distribuidas en Cartagena-Bolívar, Colombia. Las muestras de salchichas se obtuvieron en diferentes almacenes de la ciudad, se analizaron por métodos espectrofotométricos, según lo establecido por las normas técnicas colombianas, NTC 4565 para nitratos y NTC 4572 para nitritos. Los dos métodos fueron validados y mostraron un límite de detección (LDM) de 1,77 mgKg-1 y un límite de cuantificación (LCM) de 2,31 mg/Kg-1 con un nivel de confianza del 95%. Los resultados mostraron que las salchichas tipo salami tienen la mayor concentración de nitratos con un valor medio de 551,10 mgKg-1, seguidas de las salchichas tipo frank 535,54 mgKg-1, las salchichas tipo chorizo 531,51 mg/Kg-1, la concentración media de las boloñesas fue de 504,97 mgKg-1 y los jamones mostraron el nivel más bajo con 505,35 mgKg-1. Los niveles más altos de concentración de nitritos se encontraron en los chorizos con una media de 115,34 mgKg-1; los salchichones y las salchichas tipo salami mostraron un valor medio de 107,40 y 99,38 mgKg-1 respectivamente, las concentraciones de los jamones fueron de 89,39 mgKg-1 y las mortadelas de 91,80 mgKg-1.
Control System Strategy for Ring Thrower Robot Based on PID-CSA for ABU Robocon 2023
Authors: Budiyarto Aris , Ridwan Ridwan , Akbar Rizky Andhika
Published: August 2024

Thrower Robot need to maintain system stability in carrying out their tasks, which require accuracy and stability while throwing the ring in different zones and have different distances and height, so the thrower robot needs to maintain the stability of the system in order to reach target properly. Maintain the stability of the thrower is important because of the physical task like throwing the ring. However, disturbance from external systems can affect the accuracy which can reduce the performance of the robot while performing their task. Therefore, system needs stable accuracy in performing the tasks despite interference. The control system is used to maintain acceleration and elevation in the process of throwing the ring so that it can reach the specified target. The implemented system uses Proportional, Integral and Derivative (PID) control based on the Cuckoo Search Algorithm (CSA). Function of PID control is to maintain a constant position at a certain target and CSA is used to simplify PID control tunning when it has some parameter modifications. Therefore, combination of PID-CSA is applied for this system to produce a control system that aims to maintain stability and reduce disturbances contained in the ring throwing robot based on manipulation. From the result obtained, the PID-CSA method has a better level of stability because it can reduce the percentage value of the error which produced by PID-TE by showing the percentage value of distance error up to 0.68% and value of angle error up to 2.39%.
Attitude and behavior of Indonesian consumers in cross-border online shopping
Authors: Natalia Kristina Vika , Dewi Ike Janita
Published: August 2024

Abstract
 
The digital technology enhancement and the COVID-19 pandemic have fastened the growth of cross-border e-commerce. Using the Theory of Planned Behavior as the main framework, we study the effect of belief on the quality of e-website service,  customer need for uniqueness, normative beliefs, subjective norms, self-efficacy, and perceived behavioral control on attitude and behavior intention to shop online across national borders.  This research provides empirical evidence on Indonesian consumers' attitudes and behavior in cross-border online shopping. Based on 200 respondents’ responses, we analyzed the data employing Structural Equation Modeling and Mean-Difference tests.The results of this study reveal that the antecedents of e-website service quality have significant effects on attitudes which in turn affect cross-border online learning behavior intention, but not for consumer need for uniqueness. This study also shows that marketers should pay attention to the demograhic characteristics of consumers which results in differences in predictors and intention in cross-border online shopping. The research extends the Theory of Planned Behavior by adding consumers characteristics in the context of cross-border online shopping. Global e-business companies need to study antecedents in understanding the complexity of Indonesian consumer online shopping behavior across national borders.
When clicking becomes uncontrollable: The moderating role of fear of missing out and perceived enjoyment
Authors: Ardyan Elia , Sanapang Gracela Marisa , Goncalves Manuel
Published: August 2024

Indonesia's live-stream-selling business is experiencing growth as more social media vendors are embracing live-streaming platforms. Online live selling has rendered purchasers vulnerable to compulsive purchasing and the dopamine trap, as it generates a feeling of exhilaration and social coercion. This research investigates the moderating effects of fear of missing out (FOMO) and perceived satisfaction on the relationship between the perceived usefulness of live streaming and online compulsive buying activity. The respondents in this study were 154 people who had watched live streaming of social commerce and carried out online compulsive buying activities. This study uses convenience sampling as a technique to determine the sample. Each question item is assessed using seven scales. This study uses structural equation modeling partial least squares to analyze the data. This research shows that the influence of the perceived usefulness of live streaming can increase online compulsive buying activity. Apart from that, the critical role of FOMO and perceived enjoyment can moderate the influence of the perceived usefulness of live streaming on online compulsive buying activity. This study makes a valuable contribution to the field of dual process theory. This study also offers practical implications for managers, highlighting the undeniable impact of the fear of missing out on individuals who find satisfaction in live streaming. This fear intensifies their anxiety and desire to stay connected with others' activities, especially if they believe that participating in live streaming is crucial for maintaining relationships or staying informed.
The effect of entrepreneurial inspiration on entrepreneurial intention at Private Universities
Authors: Mulyono Herry , Riorini Sri Vandayuli
Published: August 2024

Currently, universities face many challenges, specifically, institutions need to be able to produce graduates who are oriented not only towards finding a job but towards creating one, a process known as entrepreneurship, where one of the key elements that significantly influences the emergence, growth, and development of entrepreneurship is the entrepreneurial intention. The purpose of this study is to examine how entrepreneurial inspiration affects entrepreneurial intention, which is mediated by students' perceived behavioral control and personal attitude. A questionnaire with simple random sampling was utilized to gather data from 395 Jambi private university students. On a seven-point Likert-type scale, the respondents were asked to indicate whether they agreed or disagreed with the statements. Data analysis structural equation model. From five hypotheses analyses that were conducted, four hypotheses have positive effects and are significant. Only one hypothesis was rejected, entrepreneurial inspiration on entrepreneurial intention. This hypothesis has a positive impact if it is exclusively mediated by personal attitudes and perceived behavioral control. This study reveals that professionals, motivators, and academics have an important influence in increasing student intentions, which is likely contributing to the improvement of entrepreneurship education in private institutions, particularly in Jambi.
The effect of antecedent variables to improve performance while working from home: Study of teachers at private school in Greater Jakarta
Authors: Purba Sylvia Diana , Pramono Herry , Christy Diona , Yacob Yusman , Efendi Efendi
Published: August 2024

During the pandemic, many work activities were carried out online, which was called Work from Home (WFH). Likewise, teaching and learning activities in schools are also affected by the online system in the distance teaching and learning process. This research was conducted during the pandemic to determine job satisfaction and performance of teachers with the job characteristic model, subjective well-being, and work climate as variable antecedents during WFH work where job satisfaction is a mediating variable in improving performance. The research was carried out at a private school foundation in the surrounding area of ​​Jakarta. The research respondents were 118 teachers using a convenience data sampling technique using a questionnaire with a Likert scale. The research model uses SEM and data is processed with PLS version 3.0 software. Job Characteristics significantly increase job satisfaction and job performance. Subjective Well-Being can increase Job satisfaction but cannot increase Job Performance, whereas Job satisfaction can fully mediate Subjective Well-Being in increasing Job Performance. On the other hand, job satisfaction can mediate job characteristics on job performance, but not as strongly because the direct influence is stronger. Likewise, at the marginal level, work climate can increase job satisfaction but cannot increase job performance and job satisfaction cannot mediate the influence of work climate on job performance.
Factors influencing the adoption of business analytics in Zimbabwe
Authors: Tichavavamwe Charles , Rachmawati Riani
Published: August 2024

The advent of the Industrial 4.0 economy has intensified the usage of Business Analytics (BA) as a strategic business tool, but the adoption rate is not equally spread across nations. This study investigated the factors influencing the intention to adopt BA in Zimbabwean companies using the technology organization environment (TOE) and the technology acceptance model (TAM). A quantitative approach was used, and data were collected from 157 Zimbabwean companies from various sectors that have adopted or intend to adopt BA. A questionnaire was deployed for data collection, and a convenient sampling method was used. The results revealed that perceived relative advantage, top management support, competitive pressure, and government regulations significantly influence the intention to adopt BA. However, complexity, compatibility, IT infrastructure, and organizational readiness were not supported. The results corroborate and support previous findings. This study adds value to the knowledge of BA adoption from a developing economy perspective. The fusion of TOE and TAM models on Zimbabwean companies' intention to adopt BA was explored for the first time. The flexibility of the TOE model allows the use of IT Infrastructure, which was perceived to have a significant influence in the Zimbabwean context, though it was proved insignificant. Managers in Zimbabwe can benefit from BA adoption for strategic value creation, with policymakers encouraged to promote BA adoption, and scholars will learn about the fused TOE-TAM model.
Did investment opportunity moderate the influence of the COVID-19 crisis on dividend policy?
Authors: Hartono Powell Gian , Tinungki Georgina Maria , Suade Yuyun Karystin Meilisa , Rahardja Liana , Triany Novika Ayu , Tyas Isthi Wahyuning , Hartono Patrick Gunawan
Published: August 2024

During the COVID-19 crisis, the investment opportunity experienced a low condition, indicated by a decrease in the market price to book value during the crisis, believed to moderate the impact of the COVID-19 crisis on dividend policy, specifically focusing on companies within the real estate and property sector in Indonesia. Therefore, this study examines the effect of the COVID-19 crisis, measured by GDP growth, on dividend policy moderated by investment opportunity. Employing a quantitative approach, the research spans from 2014 to 2021, using a purposive sampling technique to select 31 real estate and property sector companies as samples. Statistical analysis is conducted using dynamic panel data regression, employing the System-Generalized Method of Moments with a Two-Step estimator to produce more efficient parameter estimates and accommodate the dynamics of dividend policy. The findings reveal that during the COVID-19 crisis, companies in this sector tended to adopt higher dividend policies than non-crisis periods. Furthermore, investment opportunity was proven to positively moderate the influence of the COVID-19 crisis, proxied by GDP growth, on dividend policy. This study has implications for company management when considering investment opportunities that can moderate dividend policy during a crisis. Additionally, it advises investors to pay attention to the moderation of investment opportunities on the impact of the COVID-19 crisis on dividend policy to achieve optimal stock investment returns, especially dividend returns. The originality of this research lies in testing the moderation of investment opportunity on the impact of the COVID-19 crisis on dividend policy.
ETIKA BISNIS MEMODERASI PENGARUH MANAJEMEN RISIKO, MODAL INTELEKTUAL HIJAU DAN HAK PEMEGANG SAHAM TERHADAP KEUANGAN BERKELANJUTAN
Authors: Lusmeida Herlina , Khomsiyah  , J. Arsjah Regina
Published: August 2024

By using business ethics as a moderator, this research seeks to examine the impact of management risk, environmentally friendly intellectual capital, and shareholder rights on sustainable financing. This research uses secondary data, with the research period starting from 2018 to 2021, multiple linear regression analysis is used to analyze the data. The research sample consisted of 65 financial services organizations listed on the Indonesia Stock Exchange. Sustainable finance can be influenced by risk management, green intellectual capital and ethical corporate practices. Meanwhile, shareholder rights have no effect on sustainable finance. The research results show that business ethics does not strengthen the positive influence of risk management, green intellectual capital on sustainable finance, but there is an interaction between business ethics and shareholder rights so that it can influence sustainable finance.
العلاقة بين إتقان القواعد ومهارة الكتابة لطالبات المستوى العاشر بمعهد أم سليم لتعليم البنات باكنبارو
Authors: Chelsia Nabillah Olfhani NS Chelsia Nabillah Olfhani NS , Pebrian Rojja , Supriady Harif
Published: August 2024

الملخص
يهدف هذ البحث إلى معرفة ما إذا كانت هناك علاقة بين إتقان القواعد ومهارة الكتابة لطالبات المستوى العاشر بمعهد أم سليم. يستخدم ‌هذا‌ البحث بحث كمي باستخدام أسلوب الإرتباط. كان مجتمع في هذا البحث هو كل طالبات المستوى العاشر في المعهد أم سليم لتعليم البنات باكنبارو بعدد ٧٤ الطالبات. وأسلوب جمع البيانات باستخدام الاجتبار والتوثيق. وأسلوب تحليل البيانات بتحليل ارتباط بيرسون باستعمال SPSS 20. تشير نتائج هذا البحث إلى أن مهارة الكتابة لطالبات المستوى العاشر بمعهد أم سليم تدخل في فئة جيدة، وتبين أن هناك علاقة بين إتقان القواعد ومهارة الكتابة لطالبات المستوى العاشر بمعهد أم سليم والتي يشار إليها بقيمة احتمالية (tailed-۲) أصغر من  0,05وهي  0,00 <0,05  ف Ha المقبول وقيمة معامل الارتباط هي0,838. وهذا يدل على أن هذه العلاقة تقع في فئة قوية جدا.
الكلمات المفتاحية: إتقان القواعد ومهارة الكتابة
IMPLEMENTASI PROGRAM DIGITALISASI UMKM MELALUI RUMAH BUMN YOGYAKARTA
Authors: Nabila  , Atmojo Muhammad Eko
Published: August 2024

Penelitian ini bertujuan untuk mengetahui bagaimana implementasi program digitalisasi UMKM melalui Rumah BUMN Yogyakarta. Penelitian ini dilakukan dengan menggunakan teori implementasi kebijakan Merilee S. Grindle dengan menggunakan 2 variabel yaitu orientasi proses dan orientasi hasil. Metode penelitian yang digunakan adalah kualitatif deskriptif. Teknik pengumpulan data dilakukan wawancara dengan 7 responden, dokumentasi dan observasi. Adapun teknik analisis data yang digunakan adalah reduksi data, penyajian data dan penarik kesimpulan. Hasil penelitian menunjukan bahwa program digitalisasi UMKM yang diberikan oleh Rumah BUMN Yogyakarta telah rutin dilaksanakan pada tiap tahun yang membuat para pelaku UMKM merasakan manfaatnya dalam meningkatkan pemahaman terhadap pemasaran dan meningkatkan penjualan produk.
Simulation of the Automatic Liquid Level Control System in the Program CODESYS
Authors: Силаев А.А. , Трушников М.А. , Ефремкин С.И.
Published: August 2024

В работе приведено имитационное моделирование процесса регулирования уровня жидкости с помощью программного средства CODESYS. В качестве исследования управления выбрана схема регулирования уровня с клапаном на входе и с насосом на выходе. Объект управления описан интегральным звеном. В качестве закона регулирования выбран ПИД регулятор. Разработан алгоритм работы системы автоматического регулирования уровня жидкости в среде CODESYS, который учитывает физические ограничения изменения расхода на входе и уровня в емкости. Алгоритм реализован с помощью языка функциональных блоков. Разработан экран визуализации системы регулирования, на котором показаны в режиме реального времени все параметры системы. На отдельном тренде в виде графиков приведены значения входного расхода и уровня жидкости.

The paper presents a simulation of the liquid level regulating process using the CODESYS software. As a control study, a level control scheme with a valve at the inlet and a pump at the outlet was selected. The control object is described by an integral link. The PID regulator was chosen as the law of regulation. An algorithm for the operation of the automatic liquid level control system in the CODESYS environment has been developed, which takes into account the physical limitations of changes in the inlet flow rate and the tank level. The algorithm is implemented using the function block language. The control system visualization screen has been developed that shows all system parameters in real time. On a separate trend, the values of the input flow rate and liquid level are shown as graphs.
Mathematical Model for Calculating the Deviation of Pressure Coefficient of Flow-type Static Pressure Probe Caused by Airflow Angularity
Authors: Лыу К.К. , Ефимов И.П.
Published: August 2024

В статье представлена математическая модель проточных приемников статического давления (ПСД), связывающая девиацию коэффициента давления с геометрическими параметрами ПСД и углом скоса воздушного потока. Модель разработана на основе результатов моделирования в ANSYS вариационного ряда проточных ПСД. Получены сочетания геометрических параметров ПСД, при которых девиация коэффициента давления ПСД, обусловленная скосами набегающего воздушного потока, была минимальна.

The article deals with a mathematical model of flow-type static pressure probe, which connects the deviation of pressure coefficient with the geometric parameters of flow-type static pressure probe and the angle of airflow angularity. The model is developed on the basis of the results of modeling in ANSYS of a variational series of flow-type static pressure probes. Combinations of the geometric parameters of flow-type static pressure probe were obtained, at which the deviation of pressure coefficient of flow-type static pressure probe, caused by airflow angularity, was minimal.
New finds of rare macromycetes of Ryazan Region, assessment of vulnerability and necessity of protection
Authors: Светашева Т.Ю. , Бирюкова Е.В. , Казакова М.В.
Published: August 2024

Приведены сведения о 44 новых местонахождениях 20 редких видов грибов-макромицетов, из которых 10 включены в основной список охраняемых видов третьего издания Красной книги Рязанской области и 10 – в мониторинговый список, четыре вида впервые зарегистрированы в Рязанской области. Обоснована целесообразность включения в основной список двух новых видов: Geastrum striatum DC., Russula aurea Pers., а также перенесения в мониторинговый список видов: Calvatia gigantea (Batsch) Lloyd, Fistulina hepatica (Schaeff.) With., Phyllotopsis nidulans (Pers.) Singer, Volvariella bombycina (Schaeff.) Singer. На основании совокупных данных о распространении и экологии представленных видов обсуждается их редкость и уязвимость на территории области и в европейской части России. Новые сведения позволяют уточнить природоохранный статус редких видов грибов в Рязанской области и обозначить их индикационную значимость в качестве маркеров ценных природных территорий.

Data on 44 new localities of 20 rare species of macromycetes is provided. 10 species are included in the main list of protected species of the 3rd edition of the Ryazan Region Red Data Book, 10 in the monitoring list, 4 species were registered for the first time for the region. It is substantiated the advisability of including in the Red Data Book of 2 new species: Geastrum striatum DC., Russula aurea Pers., and transferring to the monitoring list of 4 species: Calvatia gigantea (Batsch) Lloyd, Fistulina hepatica (Schaeff.) With., Phyllotopsis nidulans (Pers.) Singer, Volvariella bombycina (Schaeff.) Singer. On the basis of all data on the distribution and ecology of the presented species, their rarity and vulnerability in the region as well as in the European part of Russia are discussed. The new information makes it possible to clarify the conservation status of rare macromycetes in the Ryazan Region and designate their value as markers of important nature areas.
DIFFERENTIATION OF MINING ENTERPRISES IN TERMS OF ENVIRONMENTAL IMPACT
Authors: Калабин Г.В.
Published: August 2024

Анализируется эффективность экологической модернизации предприятий по освоению недр при использовании принципов технологического нормирования на основе наилучших доступных технологий (НДТ). Предлагается направление по созданию принципиально новых горных технологий, связанных с реализацией идеи трансформации в техносферу принципов, обеспечивающих чистоту функционирования биологических систем и, создания на их основе экологически приемлемых технологий горного производства, так называемых природоподобных горных технологий. Предлагается методика дифференциации предприятий горнопромышленного комплекса по степени экологической опасности для лиц, принимающих решения по мерам государственного регулирования.

The effectiveness of environmental modernization of enterprises for the development of mineral resources is analyzed using the principles of technological standardization based on the best available technologies (BAT). A direction is proposed for the creation of fundamentally new mining technologies related to the realization of the idea of transforming into the technosphere principles that ensure the cleanliness of the functioning of biological systems and creating environmentally acceptable mining technologies on their basis, the socalled naturelike mining technologies. A technique is proposed for differentiating mining enterprises by the degree of environmental hazard for decision makers on government regulation measures.
THE ROLE OF SIMOCEPHALUS VETULUS IN THE BREAKAGE AND CONSUMPTION OF CYANOBACTERIA MICROCYSTIS AERUGINOSA
Authors: Герасимова Т.Н. , Погожев П.И. , Садчиков А.П.
Published: August 2024

В планктоне высокотрофного пруда преобладали цианобактерии Microcystis aeruginosa Kützing. Фильтрующий зоопланктон был представлен мелкими видами (размер менее 1 мм), с крайне низкой биомассой. Крупные ракообразные-фильтраторы отсутствовали из-за их выедания ихтиофауной. Фильтрующий зоопланктон при низкой биомассе и мелкоразмерном составе не может противодействовать цветению цианобактерий. В экспериментальной установке изоляция рыб способствовала развитию крупных видов зоопланктона (Simocephalus vetulus O.F. Müller). Ювенильные особи из водоема проникали в установку и наращивали высокую численность и биомассу. Размер особей достигал 1,9…2,1 мм. Численность ракообразных увеличивалась до 250…480 экз./л. Биомасса S. vetulus в экспериментальной установке была в 320 раз выше, чем биомасса растительноядного зоопланктона пруда. Кормовая база S. vetulus увеличивалась за счет разрушения (дробления) крупных колоний цианобактерий и перевода их в более мелкие фракции, потребляемые S. vetulus. Биомасса фракции размером более 100 мкм при этом переходила в размерный состав съедобных для S. vetulus фракций. В конце лета старые колонии распадались на одиночные клетки размером 4 мкм. Особи S. vetulus «создают» для себя приемлемую размерную фракцию для дальнейшего ее потребления. Это способствует увеличению кормовой базы экосистемы.

Cyanobacteria Microcystis aeruginosa Kützing dominated in the plankton of a highly trophic pond. The filtering zooplankton was represented by fine species (less than 1 mm in size) with extremely low biomass. Large-size filtering crustaceans were not present because of their grazing by ichthyofauna. The filtering zooplankton, with its low biomass and small size, cannot resist cyanobacteria blooming. In an experimental installation, the isolation of fish facilitated the development of large-size zooplankton species (Simocephalus vetulus O.F. Müller). Juvenile organisms from the water bodies penetrated into the installation where they reached large population and biomass. The size of species reached 1,9…2,1 mm. The abundance of crustaceans increased to 250…480 spec./L. The biomass of S. vetulus in the experimental installation was 320 times higher than the biomass of the planteating zooplankton in the pond. The food base of S. vetulus increased due to the destruction (breakage) of large colonies of cyanobacteria and their transformation into finer fractions consumed by S. vetulus. In this process, the biomass of the fraction with a size larger than 100 μm changed into a fraction with a size edible for S. vetulus. In the late summer, old colonies decomposed into single cells 4 μm in size. The species of S. vetulus create a size fraction acceptable for their further consumption. This contributes to an increase in the food base for the ecosystem.
RADIAL DISTRIBUTION OF THE CONCENTRATION OF A PURIFIED RADIOACTIVE SOLUTION IN THE WELL
Authors: Филиппов А.И. , Ахметова О.В. , Иванов Д.В. , Зеленова М.А.
Published: August 2024

Получены асимптотические выражения для определения радиальных профилей плотности жидких радиоактивных отходов (ЖРО) в скважине при закачке в подземные горизонты. Выражение, описывающее радиальный профиль плотности ЖРО, получено из решения задачи сопряжения о поле плотностей примесей в радиоактивном растворе в первом асимптотическом приближении. Нахождение первого асимптотического коэффициента потребовало постановки и анализа задачи для остаточного члена. На основе анализа определены нелокальные среднеинтегральные начальные и граничные условия на устье скважины, обеспечивающие единственное нетривиальное решение задачи. Выражения для первого коэффициента асимптотического разложения использованы для оценки точности нулевого приближения.

Asymptotic expressions are obtained for determining the radial profiles of the density of liquid radioactive waste in a well when pumping into underground horizons. The expression describing the radial profile of the liquid waste density is obtained from the solution of the conjugation problem about the field of impurity densities in a radioactive solution in the first asymptotic approximation. The determination of the first asymptotic coefficient required the formulation and analysis of the problem for the remainder term. On the basis of the analysis, nonlocal average integrated initial and boundary conditions at the wellhead are determined, which provide a unique non-trivial solution of the problem. Expressions for the first coefficient of the asymptotic expansion are used to estimate the accuracy of the zeroth approximation.
SYSTEM OF ELECTRODES OF IONIZATION SENSORS OF MICROMETEOROIDS
Authors: ТЕЛЕГИН А.М.
Published: August 2024

Рассмотрен принцип работы ионизационных датчиков высокоскоростных микрочастиц (микрометеороидов). Приведены три варианта конструкций измерительных электродов для сбора ионов, образовавшихся при высокоскоростном соударении микрочастиц с поверхностью мишени. Рассмотрена модель колебания системы электродов, состоящей из чередующих параллельных электродов в виде пластин и заземленных металлических проводников.

The principle of operation of ionization sensors of high-speed microparticles (micrometeoroids) is considered. Three versions of the design of measuring electrodes for collecting ions formed during high-speed collision of microparticles with the target surface are presented. A model of oscillation of a system of electrodes, consisting of alternating parallel electrodes in the form of plates and grounded metal conductors, is considered.
HISTORY OF DEVELOPMENT OF METHODS FOR SOLVING THE TASKS OF CONVECTIVE HEAT EXCHANGE OF CYLINDRICAL FLOW
Authors: Филиппов А.И. , Зеленова М.А.
Published: August 2024

Рассмотрена история развития методов решения задач о температурном поле в скважине, окруженной сплошным массивом, по которой движется жидкость. Показаны подходы отечественных и зарубежных исследователей к отысканию аналитического решения задачи теплопроводности в трубчатых каналах. Представлены этапы развития модели задачи конвективной теплопроводности в скважине, окруженной анизотропным сплошным массивом с граничными условиями IV рода и учетом произвольного аксиально-симметричного профиля скорости течения флюида.

The history of the development of methods for solving problems of the temperature field in a well surrounded by a continuous array along which the fluid moves is considered. The approaches of domestic and foreign researchers to finding an analytical solution to the problem of heat conduction in tubular channels are shown. The stages of the development of a model of a convective heat conduction problem in a well surrounded by an anisotropic solid array with boundary conditions of the fourth kind and taking into account an arbitrary axially symmetric fluid velocity profile are presented.
ELECTRIC LIGHTING OF THE ALEXANDRINSKY THEATER AND THE MANAGEMENT HOUSE ON TEATRALNAYA STREET
Authors: Петрущенков В.А.
Published: August 2024

Цель статьи – изучение особенностей процесса создания систем электрического освещения в Александринском театре и Доме дирекции на Театральной улице (ул. Зодчего России). В отличие от других Императорских театров Санкт-Петербурга электрическое освещение в этом театре создавалось подрядным способом инженером Б.А. Цейтшелем. Электростанция была общей для Александринского театра и здания Дома дирекции на Театральной улице. Рассмотрены организационные и технические особенности этого процесса за весь период существования электростанции. Приводится план размещения оборудования электростанции.

The purpose of the article is to study the features of the process of creating electric lighting systems in the Alexandrinsky theater and the Directorate House on Teatralnaya street (Zodchego Rossi street). Unlike other Imperial theaters in St. Petersburg, the electric lighting in this theater was created by the contractor engineer B.A. Zeitschel. The power plant was shared by the Alexandrinsky theater and the building of the Directorate House on Teatralnaya street. The organizational and technical features of this process over the entire period of the power plant’s existence are considered. A plan for the placement of power plant equipment is provided.
V.A. ILYIN IS A TALENTED RADIOPHYSICIST
Authors: Наумов А.А. , Фатыхов К.З.
Published: August 2024

Рассказано о научных исследованиях профессора МПГУ Вадима Алексеевича Ильина. Будучи выдающимся представителем радиофизической школы МПГУ, он выполнил ряд важных работ в области радиофизики и прикладной сверхпроводимости. В частности, под руководством В.А. Ильина был разработан уникальный комплекс криогенных приемников гелиевого уровня охлаждения (широкополосных джозефсоновских радиометров), работавший в диапазоне длин волн 2–15 мм, с помощью которых с борта корабля были исследованы особенности собственного радиотеплового излучения водной поверхности Мирового океана в СВЧ-диапазоне волн.

The scientifi c works of the professor of Moscow Pedagogical State University Vadim Alekseevich Ilyin are told. As an outstanding representative of the radiophysical school of the MPSU, he carried out a number of important research in the field of radiophysics and applied superconductivity. In particular, under the leadership of V.A. Ilyin, a unique complex of cryogenic receivers of helium cooling level (broadband Josephson radiometers) was developed, operating in the wavelength range of 2–15 mm, with the help of which the features of the own radiothermal radiation of the water surface of the World Ocean in the microwave range were investigated from the ship.
K. Sarajev and Armenia
Authors: Саакян Л.З.
Published: August 2024

Статья посвящена последнему периоду жизни и деятельности крупнейшего представителя русской и советской дирижерской школы Константина Сараджева. Впервые собраны, обобщены и в хронологической последовательности изложены основные направления музыкально-просветительской и организаторской деятельности великого дирижера, его творческие контакты с армянскими деятелями искусства. Насколько возможно, выявлены основные принципы исполнительской и педагогической деятельности Сараджева.

The article is devoted to the last period of life and activity of the greatest representative of the Russian and Soviet conductor school Konstantin Sarajev. The sphere (field) of musical, educational and organizational activities of the great conductor in Armenia, his creative interrelations with Armenian artists have first been collected, summarized and reviewed in chronological order. The main principles of Sarajev's performing and teaching activities have been considered to the extent possible.