bluuebunny/crossref_metadata_2025 huggingface dataset:
An Optimal Multi-Modal Approach for Stock Market Price Forecasting with Fused Sentiment Analysis for Real Time Data
Authors: Melveetil Visakh Chandran
Published: October 2024

Abstract: This study presents an innovative fusion-based methodology that integrates real-time stock market technical indicators with news sentiment analysis from financial news feeds to enhance stock selection decisions. The proposed framework employs a Bidirectional Long Short-Term Memory (Bi-LSTM) model for forecasting stock prices and a Deep Neural Network (DNN) used in conjunction with transformer-based model for sentiment classification, both optimized through the incorporation of real-time datasets. To further refine feature selection, Artificial Bee Colony (ABC) and Firefly algorithms are utilized, significantly improving the accuracy of price trend predictions and sentiment analysis. Technical indicators from stock market data are processed using the Bi-LSTM model to predict future stock prices. Concurrently, sentiment data from the Economic Times is pre-processed through Term Frequency-Inverse Document Frequency (TF-IDF) vectorization and pre-trained transformer models to extract key sentiment scores. The ABC algorithm enhances textual feature selection, while the Firefly algorithm reduces skewness in the error distribution of technical indicators, thereby improving the alignment between forecasted and actual stock prices. The fusion mechanism integrates predicted price movements with sentiment analysis to provide actionable insights for stock selection. The decision-making framework classifies stocks based on the consistency between price movements and sentiment: stocks predicted to rise with positive sentiment are labelled as "Sure Selection"; rising prices with negative sentiment are categorized as "Dicey Selection"; declining prices with positive sentiment result in a "Risky Selection"; and negative sentiment with falling prices trigger an "Avoid Selection". The proposed approach achieved a prediction accuracy of 67.00% for the Bi-LSTM model, with a precision of 0.714, recall of 0.695, and an F1 score of 0.677, demonstrating the model's robustness. The mean absolute error (MAE) for the Bi-LSTM model was 4.30, indicating strong predictive performance. The combined use of ABC and Firefly algorithms optimizes both technical and sentiment features, significantly contributing to the overall performance of the prediction model. By fusing multiple data sources and employing advanced optimization techniques, this methodology offers a unique and effective solution for stock market prediction and decision-making
Firearms and Ballistics
Authors: Singh Gurpreet
Published: October 2024

Abstract: This paper deals with a particular aspect of crime scene investigation which is more of a sub set, that is ballistics and firearms. The main aim is to make sure that, crime investigation, which is why the proposed options of crime-solving techniques are so developed is one such topic which desices of relating. At the same time, issues of concern like identifying the main units of ballistic, classifying different types of ballistic evidence, identifying ballistic sites and evidence including firearms that the shooter used in the crime scene and carrying out firearms analysis including historical background of firearms and firearms in general have been presented in this paper. All in all, the above claims are supported by the assertion that, ballistic and firearms crime scene activity and its application in the process of corroborating and collecting evidence. One way of improving the efficiency of law enforcement resources in the United States is sharing ballistic and firearms intelligence
Encapsulation of Essential Oils Using Complex Coacervation: A Study on Microcapsule Formation and Efficiency
Authors: Evcin Atilla , Enginar Hüseyin , Ersoy Bahri , Duman Erman , Kayhan Hülya , Çetinkaya Zeynep
Published: October 2024

Encapsulation by Coacervation is a process used to create microcapsules. Coacervation is a process that has been used in the food and pharmaceutical industry to produce microspheres with an active ingredient, such as drugs, flavors or fragrances encapsulated by them. It is common in pharmacies, food preparation, cosmetics, and agriculture. This phase separation process is called Coacervation, where a colloidal (in this case polymer) solution will separate into two distinct liquid phases: a Polymer-rich phase, which we refer to as the coacervate, and the other is known as Polymer-poor or solvent-based. This can be accomplished by varying the temperature or pH of a non-solvent being introduced.
In this study, essential oils of lemon and eucalyptus were encapsulated by the complex coacervation process using gum Arabic, gelatin, and chitosan as wall materials. Glutaraldehyde was used as a cross-linking agent in the methodology. FT-IR and GC characterized the essential oils used. The microcapsules were analyzed using a digital microscope, scanning electron microscopy (SEM), and thermogravimetric analysis. Conclusively, microcapsules were formed in spherical form. Encapsulation efficiencies were obtained between 75-78%.
In conclusion, microencapsulated essential oils offer a technology that makes essential oils more effective, long-lasting, and customized. These advantages reveal their widespread impact, offering various uses for a variety of industries and applications.
Interpretation of cardiovascular outcome trials results of new antidiabetic agents
Authors: Koh Gwanpyo , Chin Hyounjung
Published: October 2024

The incidence of diabetes is continuously increasing worldwide, resulting in a considerable socioeconomic burden. Glycemic control using traditional diabetes medications prevents microvascular complications; however, there is no objective evidence that it prevents macrovascular complications. In the 21st century, concerns have arisen that strict glycemic control and the diabetes drug rosiglitazone might increase mortality. This led the United States Food and Drug Administration to establish guidelines that require that cardiovascular outcome trials (CVOTs) with 3-point major adverse cardiovascular events (3-P MACE) as the primary endpoints be performed for new diabetes drugs. Since then, 20 CVOTs have been reported. Dipeptidyl peptidase 4 inhibitors do not increase the incidence of cardiovascular disease; however, saxagliptin increases the risk of heart failure. Sodium-glucose cotransporter inhibitors (SGLT2is) and glucagonlike peptide 1 receptor agonists (GLP-1RAs) not only have proven cardiovascular safety but also have shown results beyond expectations by reducing the incidence of cardiovascular diseases. Additionally, SGLT2is have been reported to markedly prevent heart failure and kidney disease. The reduction in 3-P MACE by GLP-1RAs was observed only with long-acting agents; long-acting GLP-1RAs also markedly reduced renal endpoints. However, no preventive effect against heart failure was observed with GLP-1RAs. The preventive effects of both drug types against cardiovascular and kidney diseases appear to be independent of glycemic control. In conclusion, based on CVOT results, it is necessary to actively prescribe SGLT2is and GLP-1RAs to prevent cardiovascular disease in patients with diabetes, regardless of glycemic control.
Post-socialist restauration of capitalism, deindustrialization, and precarization of labor: The case of Serbia
Authors: Perovic Milos
Published: October 2024

In this paper the author analyzes the relationship between
deindustrialization and the increase in labor precarity in Serbian society
amidst the conditions of post-socialist restauration of capitalism. Given
that Serbia is among the societies with the highest income inequalities in
Europe which are disproportionately affecting the unemployed and those
engaged in non-standard (precarious) forms of employment, the author argues
that the structural cause of this situation lies in the destruction of the
economy, particularly industrial production, during so called transition
from socialist to capitalist economic relations. The author distinguishes
two different yet interconnected phases within the process of restauration
of capitalism in the case of Serbia. Therefore, in this paper, the author
takes a historical overview of the development and destruction of industry
in Serbian society over the past hundred years to understand the extent of
the reserve army of labor in Serbian society, which forms the foundation of
existing social inequality and labor precarity.
Laporan Netnografi Mengenai Budaya Digital Dari Media Sosial Manual Brew Community
Authors: Fadhli Ahmad
Published: October 2024

Manual Brew Community (MBC) sebagai sebuah komunitas memiliki aktivitas di dunia nyata dan dunia maya. Penelitian ini akan menganalisis perilaku digital MBC sebagai sebuah komunitas. Perilaku digital MBC di Instagram dan YouTube dijadikan sebagai objek penelitian melalui metode kualitatif dengan pendekatan netnografi. Tujuan dari penelitian ini adalah untuk merekam dan menemukan pola aktivitas komunikasi digital MBC, sehingga dapat digunakan sebagai acuan dalam mengelola akun media sosial lainnya. Pengumpulan data dilakukan dengan menggunakan teknik indeks data online dan wawancara. Teknik analisis yang digunakan adalah teknik tipologi, kategorisasi, dan interpretasi data. Kesimpulan dari penelitian ini adalah aktivitas digital MBC didesain bukan untuk mengembangkan komunitas melainkan berkonsentrasi pada penyelenggaraan kompetisi. MBC tidak memiliki karakteristik komunikasi digital yang sengaja dibangun untuk mendapatkan wajah komunitas tertentu melalui media sosialnya.
Theft in the Family Context: An Analysis of Article 367 of the Criminal Code and its Application in Indonesia
Authors: Hanafi  , Khalid Afif , Wardiansyah Gusti , Hidayatullah
Published: October 2024

This study aims to explore the regulation and implementation of family criminal law regarding theft cases within a family context from the perspectives of Indonesia Criminal Codes (KUHP) and the theory of jarimah of the Islamic criminal law. By employing a descriptive qualitative method with a literature review approach, the research analyzes legal sources and relevant literature. The findings reveal that theft is generally regarded as a common crime. However, in specific contexts, such as theft occurring within a family setting, special provisions outlined in Article 367 of the KUHP. This article classifies family theft as a complaint offense (klacht delict), meaning it can only be prosecuted if there is a complaint from the aggrieved party. The study underscores the importance of thoroughly understanding the characteristics of family theft and its implications for the criminal justice system. It also highlights the need for further evaluation of the effectiveness and application of this law in the Indonesian family context, incorporating insights from the theory of jarimah in Islamic criminal law.
A self-learning college creation architecture
Authors: Mineva Oksana Karlovna
Published: October 2024

The competence approach has firmly gained its place in the world educational paradigm, distinguishing rigid (professional) and flexible (supra professional) skills. But the high speed of technological changes will significantly transform the landscape of the modern labor market, when within the next decades up to a quarter of traditional professions will disappear, and hard skills will be significantly transformed after them. The most important competitive advantage will be the speed of perception and translation of new knowledge, as well as competencies formed on their basis. The key competences for continuous development will be flexible competences (soft skills), some of which will be enriched with basic hard skills. The traditional conservatism of the educational system, the long period of formation of educational standards of training becomes a certain brake on the training of specialists of the future. If rigid skills can be formed based on the existing production base (jobs of the future, which do not exist yet), flexible skills can be formed now. This actualizes the idea of creating self-learning spaces in secondary vocational education institutions. Copying Chris Argyris' idea will not find a positive response, given our realities and the specifics of the Millennial generation, Z generation and later α generation, it will be a good idea to create self-learning spaces in secondary vocational education institutions. The author's developments on the implementation of approaches to the formation of the model of a self-learning college in the institution of secondary vocational education are presented. This approach can be useful for secondary vocational education organizations developing educational, managerial and financial strategies in order to unpack the expertise of the teaching community.
Media management as a promising digital management tool
Authors: Sheremetyeva Elena Nikolaevna , Gorshkova Larisa Anatolievna , Frolova Anna Kirillovna
Published: October 2024

The issues of studying the concept of media management from the point of view of its use as a tool for managing the digital transformation of business processes and the economy as a whole are considered. Approaches to the definition and content of the term “media management” are analyzed, the specifics and conditions for digitalization of the media market are explored. The key factors determining the further active development of media management and the media environment are identified, and the content of the digital transformation of the media market is revealed. The most relevant models of modern media management in digital management have been identified. The attention is paid to the study of such issues as key factors in the development of media management; media management as an integrated management tool; media as a tool for managing the digital economy; trends in digital transformation and development of media tools. Scientific works devoted to this problem have been studied. The characteristic features of media management as a modern methodology for managing business development and list promising ways to organize the management process, types and tools for using media in digital management are highlighted. An analysis of the current state of the media market is carried out, as well as a forecast for its further development within the framework of the domestic digital economy. The most promising areas of media management are proposed and key trends in media management are listed. Media management at its core is a direction of the digital economy, the transition to which has received significant attention as part of the development of the domestic system of expanded reproduction. Media management as a modern management tool is a rather multifaceted concept that largely determines the trends in the further development of the domestic media market and the digitalization of the modern economy. The growth of the media market contributes to an even more active digital reorientation of basic economic and business processes.
Management of logistics processes in cross-border e-commerce
Authors: Zhao Qiuyang , Parfenov Alexander Viktorovich
Published: October 2024

In the context of the globalization of the economy and the development of cross-border e-commerce, the importance of cross-border logistics is increasing, allowing for an effective process of product distribution. The issues of organizing transport and logistics processes during the delivery of goods within the framework of the functioning of cross-border e-commerce are discussed. The main aspects of the development of e-commerce logistics and its impact on the trading business have been studied. An analysis of the cross-border e-commerce market in Russia is carried out. It is noted that currently the global logistics industry is in an unstable environment. The main directions and trends in the development of logistics services in modern conditions are considered and the specifics of adapting the process of goods distribution within the framework of cross-border e-commerce to changes in the external environment are investigated. The distinctive features of e-commerce logistics have been studied in the context of its impact on the trading business, which allows for increased efficiency of logistics processes such as procurement, transportation, order processing, inventory and warehouse management, packaging and labeling. It has been proven that with the development of information technology and telecommunication networks, as well as increasing demand in the field of online trading, the need for effective logistics support is significantly increasing, and delivery speed is becoming increasingly important to provide quality service to consumers. The advantages of e-commerce are substantiated from the perspective of subjects of trade and logistics activities, which include the global nature of customer coverage and the convenience of inter-subject interaction, reduction of operating costs of trade and logistics activities, expanded opportunities for marketing and advertising support, increased level of automation of e-commerce logistics management processes.
Market analysis of neuromarketing technologies and assessment of their role in improving the effectiveness of content perception
Authors: Vinnik Alina Evgenievna
Published: October 2024

The results of a study of the dynamics of the global market of neuromarketing technologies, in particular the market of eye movement tracking technology (eyetracking), are presented. The conclusion is made about the existing positive dynamics: in recent years, the market has been showing annual growth and, according to experts, by 2032 it may reach a value of $ 3.2 billion.; as well as the high demand for neuromarketing technologies in various fields such as healthcare, retail, the gaming industry, automotive, advertising, etc., due to the growing needs of businesses in monitoring consumer behavior, uncovering subconscious motives and emotional triggers in order to adapt company strategies to the needs of the target audience. The analysis of the market structure by region is carried out: the largest market share belongs to North America, the Asia-Pacific region and Europe. The dominant regions in the eyetracking market are North America and Europe. Neuromarketing tools are applicable for conducting research and experiments in various fields and allow you to measure responses to product advertising, packaging, price, ease of use, assessment of emotional state, as well as human perception of content posted on a website, advertising surface or presentation slides. Experiments with the use of trackers make it possible to understand how a person perceives information, what he reads first of all, what he looks at. The results of existing experiments with the use of eye trackers allow you to make decisions about content and its rational placement on the surface (slides, website, advertising banners, etc.), maximizing meaningful interaction. Further research and experiments are needed to optimize marketing efforts and increase the effectiveness of interaction with consumers.
Seismic location technology. Construction of a depth-velocity seismicmodel of thegeologicalmedium
Authors: Rabinovich E.V.
Published: October 2024

An original technology for construction of seismic images of high-resolution andaccuracy is proposed. In given article the third part of technology is stated. A new approachto the construction of seismic images is presented here, using stable and unambiguous solutions to several direct kinematic problems of seismic exploration instead of solving oneinverse problem. It is based on the location of the seismic reflection impulse source, which iscarried out by a seismic digital antenna array using a super-resolution location algorithm anda virtual location grid. The accuracy of constructing reflective boundaries is determined bythe specified parameters of the selection and location algorithms used, as well as the nodes ofthe location grid. The seismic location technology has a number of theoretical and practicaladvantages over known seismic imaging technologies.
Developing student practical skills by the software vulnerability analysis course
Authors: Vilkhovsky D.E.
Published: October 2024

The paper provides an overview of the methodology for teaching the discipline Software Vulnerability Analysis course methodology, which allows not only to provide future information security specialists with theory on the software vulnerability, but to develop their practical skills in detecting and analyzing these vulnerabilities, as well as contribute to their gaining general professional competence GPC-2.
Tectonic earthquakes and theory of catastrophes
Authors: Guts A.K.
Published: October 2024

Review article presenting work on application of the mathematical theory of catastrophes to earthquakes. This work is mainly being successfully carried out in China and Russia. Articles were selected that reflected such disasters as “fold”, “cusp”, “swallow tail” and “butterfly”.
Amendments to the Civil Procedure Code of the Russian Federation on the Court Hearing Protocol: Analysis of Changes
Authors:   Kuban State University, Konorezov Nikolay A.
Published: October 2024

The article presents an overview and analysis of the amendments to the civil procedure legislation concerning the court hearing protocol, introduced by Federal Law No. 135-FZ of June 12, 2024. The author notes that the introduced changes aim to further improve and unify procedural legislation by mandating audio recording of court sessions. The article highlights the advantages, potential problems, and risks associated with abandoning traditional forms of court hearing protocols. The discussed procedural reform should be viewed positively in the context of the overall trend towards the digitalization of justice. However, its success will depend on the estab-lishment of adequate organizational foundations for the use of technical tools in maintaining court session pro-tocols and the development of an effective legal framework to regulate their application.
Technological Determinism and Social Constructivism as a Theoretical Basis in the Study of Technology and Society Relations
Authors:   St. Petersburg University of Management Technologies and Economics, Ri Maxim A.
Published: October 2024

The modern world is intricately woven with technologies. From a sociological perspective, an essential question arises regarding the study of the relationships between technologies and social reality. In an era characterized by rapid technological progress and the digital transformation of society, understanding the interaction between technologies and social structures becomes increasingly relevant. Information and communication technolo-gies not only alter the ways in which individuals interact but also shape new social norms and structures. In this context, the investigation of the relationships between technology and society gains particular significance. Two key theories – technological determinism and social constructivism – offer distinct yet complementary perspec-tives on the role of technology in society, highlighting the importance of considering both technological and social factors. This article will examine the theoretical foundations of both theories, present historical examples to practically demonstrate the theoretical considerations, provide an authorial critique of the theories, and draw conclusions regarding the cumulative integrity of the proposed ideas.
Rational steel mesh layout influence on plate utilization of large span corrugated steel structure
Authors: Bareikis Nerijus
Published: October 2024

Corrugated steel structures buried in the surrounding soil are currently used worldwide in road and railway engineering as culverts, pedestrian and animal crossings, tunnels and bridges. The need of large span corrugated steel structures is rapidly growing however their behavior analysis is still understudied. There is also a lack of discussion about the impact of additional strengthening elements for the behavior of corrugated steel structures. This study analyses the influence of rational steel mesh layout on the behavior of a large span deepest corrugation steel structure. The numerical two-dimensional model of two-radius 17.5 m span profile with corrugation of 237 mm depth and 500 mm pitch was developed to replicate the ongoing project in Lithuania. Originally the stiffness of the structure from both sides was increased by six layers of steel meshes as lateral support. Nevertheless, the current study was looking for rational steel mesh layout. Also, the influence of different layouts of steel mesh on corrugated steel plate utilization to buckling failure in the peaking, dead load and in the most unfavorable live load location phase was analyzed. The finite element model results indicated that steel meshes could be used to control structure deformations and internal reactions. Vertical displacement of the crown of the structure could be reduced by 45% in the peaking phase when using proper steel meshes layout. Furthermore, steel meshes could be a decisive factor for the bearing capacity of corrugated steel structure in a positive sense.
Synchronizing production of precast elements with on-site erection
Authors: Jaskowski Piotr , Biruk Sławomir , Krzeminski Michał
Published: October 2024

Offsite construction technologies are developed to reduce project cost and duration. To make the most of the potential offered by prefabrication the planner should consider the whole supply chain. A failure to coordinate the off-site production with on-site erection is a source of waste (waiting time of the construction crews or redundant handling activities on-site). Most of the research to date focused on optimizing operations of a prefabrication plant assuming a deterministic schedule of demand for its products. The purpose of this paper is to develop a mathematical model for integrated scheduling of offsite and on-site operations. Its solution is a schedule that minimizes the downtime of both the prefabrication plant and the on-site erection crews. In accordance with the Just-in-Time concept, the prefabrication schedule is set in a way to reduce the stocks of finished products, thus reducing the storage area and cost of funds tied up in inventory. The schedule’s robustness against the disturbance in the production and erection workflows is assumed to be assured allocating time buffers. The advantage of the proposed method is the ease of collecting the input: instead of detailed cost records, estimates of unit cost of lost time can be used.
Social Contexts in Social Work: a View from Teachers in the Centro East and Colombian Caribbean Region
Authors: Salcedo Carmen Cadrazco , Franco Xilena Gil , Baraahona Ana Yadira , Teheran Kelly Diaz , Carazo Rosana Martinez , Contreras Blanca Perez
Published: October 2024

Objective: To reveal, from the point of view of the teachers dedicated to the training of social workers, the meanings they attribute to the social contexts in order to establish relationships with the training emphases proposed by the social work programs in the Caribbean and central-eastern regions of the Colombian territory.
 
Theoretical Framework: oriented from the study group methodology, where the exchange of knowledge was the basis for analyzing and deciding the basic theoretical course for the configuration of historical and theoretical perspectives of the developed process, based on local sociologies to understand life contexts of subjects and communities, which paraphrasing Wiebke Keim (2010) work the dynamics of the local, recovering the voices of actors against the classical social theory that marked even the powers of the so-called North Atlantic.
 
Method: the study was developed from the hermeneutic paradigm, qualitative approach, non-probabilistic designs, focus group technique and discourse analysis, aimed at teachers of Social Work Programs.
 
Results and Discussion: the relationship of the context as a scenario where interactions are developed is reaffirmed, product of an economic structure that determines certain social representations, built in the groups permeated by social dynamics and intervention processes influenced by diagnoses that give reading to social, economic and political determinants that allow their development.
 
Research Implications: It contributes to the epistemological, theoretical and methodological developments of Social Work from the reading of context.
 
Originality/value: It provides views of context related to the emphasis of training that give sense to areas of professional performance.
TUMBUHAN OBAT TRADISIONAL SEBAGAI INDIGENOUS KNOWLEDGE MASYARAKAT SUNDA: KAJIAN ETNOPEDAGOGIK
Authors: Dewi Cipta Wisuda , Koswara Dedi , Darajat Danan
Published: October 2024

This study discusses the use of traditional medicinal plants from an ethnopedagogical perspective, focusing on a case study in the Sundanese community. The research aims to understand the traditional healing practices involving the use of medicinal plants among the Sundanese people and how the ethnopedagogical approach can be used to uncover local knowledge and strengthen these cultural practices. The research methodology employed is a qualitative approach with data collection techniques through participatory observation, in-depth interviews, and documentation study. The research sample was purposively selected, involving community leaders or traditional healing experts with extensive knowledge of medicinal plants and traditional healing practices in the Sundanese community. The results show that the use of traditional medicinal plants remains an integral part of the Sundanese healthcare system. These plants are used to treat various diseases and health disorders, serving as symbols of local wisdom and cultural identity. The ethnopedagogical approach facilitates the sustainable transfer of knowledge from generation to generation and raises awareness of the importance of preserving cultural heritage in the context of traditional medicine.
Pengalaman Anggota Keluarga Mendampingi Lansia Penderita Covid-19 Saat Isolasi di RSU Sembiring Deli Tua
Authors: Tarigan Herri Novita , Afrizal  , Andani Eka Putra  , Adang Bachtiar
Published: October 2024

Lansia merupakan kelompok yang paling rentan terkena penyakit Covid-19. Kecemasan pada lansia dengan Covid-19 merupakan faktor kesehatan mental yang penting untuk diatasi. Terdapat kendala dalam pemenuhan kebutuhan dasar lansia sehingga lansia memerlukan bantuan keluarga. Pengalaman keluarga dalam mendampingi lansia terpapar Covid-19 sangat berguna untuk memperoleh informasi terkait perawatan. Tujuan penelitian adalah untuk memperoleh informasi yang mendalam tentang pengalaman anggota keluarga ketika mendampingi lansia terpapar Covid-19 selama isolasi di rumah sakit. Penelitian ini merupakan penelitian kualitatif, dengan pendekatan fenomenologis. Partisipan terdiri dari 11 anggota keluarga dengan cara purposive sampling, dilakukan wawancara mendalam untuk data yang terdiri dari 5 pernyataan terbuka dengan menggunakan rekaman suara. Analisis data menggunakan analisis isi. Temuan hasil penelitian ini adalah terdapat 7 tema: 1) Pengetahuan pendamping mengenai tujuan pendampingan lansia penderita Covid-19 selama isolasi di RS, 2) Perasaan kekeluargaan saat orang tuanya dinyatakan Covid-19, 3) Kondisi lansia setelahnya dinyatakan Covid-19, 4) Aktivitas pendamping saat mendampingi lansia yang mengidap Covid-19, 5) Saat perawat memberikan motivasi kepada lansia yang mengidap Covid-19, 6) Kendala Pendamping Saat Mendampingi Isolasi Lansia di Rumah Sakit, 7) Harapan terhadap Pendamping Agar Mendampingi Lansia penderita Covid-19 Selama Isolasi di Rumah Sakit. Pentingnya menggali pengalaman keluarga dalam mendampingi lansia penderita Covid-19 selama isolasi di rumah sakit untuk memberikan rasa tenang khususnya psikologi sehingga mempercepat kesembuhan lansia. Dengan hadirnya pendampingan dari pihak keluarga lansia penderita Covid-19 selain memiliki rasa tenang dan hilangnya rasa ketakutan semakin menurun, timbulnya harapan atau semangat kembali, ketika diketahui terkena postif Covid-19 dan jika disertai adanya penyakit penyerta. Kegiatan dari anggota keluarga dalam mendampingi selama isolasi yang sangat positif dan berdampak yaitu berkomunikasi terus menerus dengan lansia, memberikan motivasi kepada lansia agar semangat dalam masa pemulihan, memperhatikan asupan gizi dari makanan yang dikonsumsi lansia, berdoa, menonton dan bahkan berkomunikasi melalui telepon atau video call dengan anggota keluarga di rumah lainnya.
Analisis Risiko Sanitasi dan Kejadian Penyakit Kulit di Kecamatan Medan Belawan Kota Medan
Authors: Malau Pitto , Naria Evi , Indirawati Sri Malem
Published: October 2024

Pendahuluan : Penyakit kulit merupakan salah satu penyakit yang paling sering ditemukan di negara beriklim tropis. Merujuk pada data BPS tahun 2019 penyakit kulit masuk dalam 10 deretan penyakit terbesar di Kota Medan. Berdasarkan data penyakit yang diperoleh dari Puskesmas Medan Belawan penyakit kulit masuk dalam 10 deretan penyakit tertinggi pada tahun 2022-2023 yaitu sebanyak 1751 kasus dengan persentase sebesar 24 persen. Berdasarkan data dan hasil observasi yang dilakukan masih banyak rumah tangga yang belum memiliki akses sanitasi dasar yang lengkap dan memenuhi standar kesehatan salah satunya adalah saluran pembuangan air limbah (SPAL). Mayoritas SPAL rumah tangga terbuka dan mencemari lingkungan. Tujuan Penelitian : Penelitian ini bertujuan untuk menganalisis risiko sanitasi variabel saluran pembuangan air limbah dengan kejadian penyakit kulit. Metode : Penelitian ini merupakan penelitian kuantitatif dilaksanakan di bulan Desember 2023 sampai Juni 2024.      Populasi terdiri dari 27.114 rumah tangga dengan sampel sebanyak 100 rumah tangga. Pengambilan sampel dalam penelitian ini menggunakan purposive sampling. Data dikumpulkan melalui wawancara menggunakan instrument kuesioner kemudian akan dihitung menggunakan rumus perhitungan Indeks risiko sanitasi (IRS) sehingga akan diperoleh skor yang menyatakan risiko sanitasi. Untuk melihat hubungan  variabel saluran pembuangan air limbah (SPAL) dengan kejadian penyakit kulit maka digunakan analisis statistik chi square.  Simpulan : Berdasarkan hasil penelitian maka diperoleh indeks risiko sanitasi untuk variabel saluran pembuangan ari limbah (SPAL) rumah tangga berada pada kategori risiko sanitasi sangat tinggi. Hasil analisis statistic menunjukkan bahwa terdapat hubungan antara saluran pembuangan air limbah dengan kejadian penyakit kulit dengan perolehan nilai p value = 0.028 dan nilai Exp-B sebesar 4.01.  Berdasarkan hasil penelitian yang dilakukan indeks risiko sanitasi saluran pembuangan air limbah berada pada kategori risiko sangat tinggi dengan indeks skor sebesar 67. Berdasarkan analisis statistik diperoleh hubungan antara saluran pembuangan air limbah dengan kejadian penyakit kulit (p value 0.028, PR= 1.7). Pengelolaan SPAL rumah tangga perlu ditingkatkan yaitu dengan jenis SPAL tertutup/memenuhi syarat kesehatan yang tidak menimbulkan pencemaran lingkungan.
METHOD OF DETERMINING THE ENERGY RELATIONSHIP BETWEEN PRODUCTS TEMPERATURNOI DESTRUCTION OF ITS SYNTHETIC OILS
Authors: Ковальский Б.И. , Рунда М.М. , Васильев А.В. , Акимов М.В. , Анакин М.Ф.
Published: October 2024

В статье ппредставлены результаты испытания синтетических моторных масел на температурную стойкость в температурном интервале от 140 до 300 оС с учетом тепловой энергии, поглощенной продуктами температурной деструкции и испарения. Установлены линейные зависимости между десятичными логарифмами тепловой энергии, поглощенной продуктами температурной деструкции и испарения. Показано, что процессы температурной деструкции начинаются после испарения определенной массы, т.е. при термостатировании в первую очередь происходят процессы испарения, а после поглощения маслом определенного количества тепловой энергии происходит обоюдное увеличение концентрации продуктов деструкции и испарения

The article presents the results of testing synthetic motor oils for temperature resistance in the temperature range from 140 to 300 oC, taking into account the thermal energy absorbed by the products of thermal degradation and evaporation. Linear relationships between the decimal logarithms of the heat energy absorbed by the products of thermal degradation and evaporation are established. It is shown that the processes of thermal degradation begin after the evaporation of a certain mass, i.e., during temperature control, evaporation processes occur first, and after the absorption of a certain amount of thermal energy by the oil, the concentration of degradation and evaporation products increases mutually.
THERMAL AND DETONATION PROPERTIES OF BICYCLIC NITROTRIAZOLE DERIVATIVES
Authors: Комарова М.В. , Козырев Н.В. , Вакутин А.Г. , Суханова A.Г.
Published: October 2024

В статье приводятся расчёты детонационных характеристик бициклических производных 3-нитро-1,2,4-триазола и взрывчатых композиций на их основе. Описаны термические свойства бициклических производных и эвтектических сплавов с тротилом, полученные методами термического анализа; указаны температуры плавления эвтектик. Результаты исследования показали, что скорость детонации композитов на основе бициклических производных сопоставима, либо может превышать аналогичный показатель для композиций на основе тротила. Составы, содержащие эвтектические сплавы имеют приемлемые технологические и детонационные свойства. Наиболее перспективными являются Бис[2-(3-нитро-1,2,4-триазол-1-ил)этил]овый эфир и 1,2-Бис(2-(3-нитро-1Н-1,2,4-триазол-1-ил)этокси)этан.

The article presents calculations of detonation characteristics of bicyclic derivatives of 3-nitro-1,2,4-triazole and explosive compositions based on them. The thermal properties of bicyclic derivatives and eutectic melt-casts with TNT obtained by thermal analysis are described; the melting temperatures of eutectic materials are determined. The results of the study showed that the detonation velocity of composites based on bicyclic derivatives the detonation velocity is equal to or higher than for similar compositions with trotyl. Compositions containing eutectic melt-casts have agreeable technological and detonation properties. The most promising are Bis[2-(3-nitro-1,2,4-triazol-1-yl)ethyl]ether and 1,2-Bis(2-(3-nitro-1H-1,2,4-triazol-1-yl)ethoxy)ethane.
PISTON RADIATOR FOR GAS MEDIA
Authors: Хмелев В.Н. , Шалунов А.В. , Нестеров В.А. , Нестеров А.А. , Тертишников П.П.
Published: October 2024

В статье рассказывается про разработку и создание нового излучателя в форме поршня, который предназначен для озвучивания различных газовых сред. Базой для создания данного излучателя послужило тело в форме цилиндра, длина которой составляет половину длины волны. Данное тело соединялось с электроакустическим преобразователем. Благодаря тому, что присоединительная плоскость, которая предназначается для того, чтобы возбуждать колебания, выполняется углубленной, по отношению к торцевой поверхности, удалось значительно увеличить амплитуду механических колебаний излучающей поверхности. В конце проведения всех необходимых исследований и разработок был создан новый ультразвуковой излучатель. Предложенная конструкция позволяет обеспечивать акустическое воздействие на газодисперсные среды с интенсивностью ультразвукового поля не менее, чем 145 дБ, при уровне потребляемой мощности не превышающей значение 90 Вт.

The article describes the development and creation of a new radiator in the form of a piston, which is designed for voicing various gas environments. The basis for creating this emitter was a body in the form of a cylinder, the length of which is half the wavelength. This body was connected to an electroacoustic Converter. Due to the fact that the connecting plane, which is intended to excite vibrations, is deepened in relation to the end surface, it was possible to significantly increase the amplitude of mechanical vibrations of the radiating surface. At the end of all the necessary research and development, a new ultrasonic emitter was created. The proposed design makes it possible to provide an acoustic effect on gas-dispersed media with an ultrasonic field intensity of at least 145 dB, with a power consumption level not exceeding 90 watts.
SYNTHESIS OF COMPLEX CATIONIC SALTS BASED ON N,N'-DINITROUREA
Authors: Ильясов Д.С. , Ильясов С.Г.
Published: October 2024

Федеральное государственное бюджетное учреждение науки Институт проблем химико-энергетических технологий Сибирского отделения Российской академии наук, г.Бийск Исследовано взаимодействие дикалиевой соли N,N'-динитромочевины с хлоридами меди, кобальта, никеля в присутствии диаминомочевины. Показано, что происходит образование комплексного катиона меди, кобальта, никеля (2+) с двумя нейтральными молекулами диаминомочевины во внутренней сфере и кислотным остатком анионом N,N'-динитромочевины во внешней сфере. Синтезированные соли идентифицированы ИК- и УФ-спектроскопией.

The reaction between the potassium salt of N,N'-dinitrourea and the chlorides of copper, cobalt and nickel over diaminourea was examined. A complex cation between copper, cobalt, nickel (2+) and two neutral diaminourea molecules within the inner sphere and anionic N,N'-dinitrourea as an acidic residue within the outer sphere was shown to be formed. The synthesized salts were resolved by IR and UV spectroscopies.
Study combustion performance nanothermite composition MoO3/Al/1Ме-3н on the prescription factors
Authors: Гордеев В.В. , Казутин М.В. , Козырев Н.В.
Published: October 2024

В работе показано влияние содержания 1-метил-3-нитро-1,2,4-триазола (1Ме-3Н) на силу взрыва нанотермитной композиции MoO3/Al/1Ме-3Н. Использовали два способа компоновки рецептур: I – соотношение компонентов соответствовало максимальному расчетному значению теплоты горения (Q) композиции; II – компоновка, в которой соотношение компонентов базовой нанотермитной пары MoO3/Al сохранялось постоянным. Выявлено, что при любом способе рецептурной компоновки зависимость силы взрыва от содержания 1Ме-3Н носит экстремальный характер. При построении рецептуры по I способу максимальная сила взрыва достигается при содержании 1Ме-3Н - 15 % и составляет ~210 % от уровня базовой нанотермитной смеси. При использовании II способа максимальная сила взрыва составляет ~330 % от базового уровня и соответствует содержанию 1Ме-3Н - 30 %.

In this paper, discusses the effect of the additive content 1-methyl-3-nitro-1,2,4-triazole (1Me-3N) on the explosion force of the composition MoO3/Al/1Ме-3Н. Two methods of recipe configuration selected: I - mixing ratio corresponds to the maximum calculated value of combustion heat (Q) of the composition; II - ratio of components nanotermitnoy base pairs MoO3 / Al was kept constant. For each recipe configuration, the dependence of the explosive force on the 1Me-3H content is extreme nature.A recipe configuration to method I the maximum explosive force is achieved when the content 1Me-3H 15% and is about 210% of the base level nanotermite. When using method II, the maximum explosion force is ~ 330% of the baseline level and corresponds to a 1Me-3H content of 30%.
Comparative analysis of measurement techniques of the reactive power of sinusoidal signal
Authors: Серов А.Н. , Серов Н.А. , Долгачева Е.А.
Published: October 2024

В настоящее время среди параметров реактивной мощности наибольший интерес представляет реактивная мощность основной спектральной компоненты. Сигналы напряжения и тока современных электрических сетей не являются синусоидальными. Однако, для измерения параметров реактивной мощности основной спектральной компоненты могут быть использованы методы анализа синусоидальных сигналов тока и напряжения. Среди известных методов измерения реактивной мощности синусоидального сигнала можно выделить: метод временной задержки, метод предварительного интегрирования, метод предварительного дифференцирования, и метод интегрирования-дифференцирования. Основной причиной возникновения погрешностей рассмотренных методов является наличие гармоник в спектре входного сигнала и отклонение частоты входного сигнала от номинального значения. В настоящей работе выполнен анализ влияния указанных параметров на погрешность измерения реактивной мощности основной спектральной компоненты указанных выше методов измерения. Получены аналитические соотношения, позволяющие оценить погрешность измерения реактивной мощности при отклонении частоты входного сигнала от номинального значения. Предложено звено задержки на целое число тактов для реализации метода временной задержки. Для метода предварительного интегрирования рассмотрена реализация на базе цифрового интегратора первого порядка. Для метода предварительного дифференцирования рассмотрена реализация на основе цифрового дифференциатора первого порядка. Выполнено имитационное математическое моделирование в программных пакетах Mathcad, Matlab и Simulink, подтверждающее справедливость полученных аналитических выражений. Выполнено сравнение рассмотренных методов с точки зрения сложности реализации и погрешности измерения реактивной мощности. Показано, что среди рассмотренных методов измерения наименьшей погрешностью обладает метод интегрирования-дифференцирования.

Abstract – Currently, for reactive power, the greatest interest of reactive power parameters is the reactive power of fundamental spectral component. Voltage and current of the modern electrical networks are not sinusoidal. However, for the measurement of reactive power of fundamental spectral component can be used techniques of analysis of sinusoidal voltage and current. Among known methods of measuring reactive power can be identified, the time-shift technique, preliminary integration technique, preliminary differentiation technique, integration-differentiation technique. The main reason for the occurrence of errors of the considered techniques is the presence of harmonics and frequency deviation of the signal from the nominal value. At the present work the analysis of the impact of these parameters on measurement error of reactive power of the fundamental spectral component. The obtained analytical correlations, allowing to estimate measurement error. Performed analytical modeling in software packages such as Mathcad, Matlab and Simulink, confirming the validity of the obtained analytical expressions.
EXPERIMENTAL STUDY OF THE INFLUENCE OF ULTRASONIC CAVITATION ON RAW-MATERIAL COMPONENTS OF THE POLYMERIC COMPOSITE
Authors: Лопатин Р.А. , Голых Р.Н. , Хмелев В.Н. , Минаков В.Д. , Генне Д.В. , Нестеров В.А.
Published: October 2024

Аннотация - В данной статье рассматривается экспериментальное влияние ультразвуковой кавитации на полимерную матрицу и наполнитель полимерного композиционного материала. В статье описан метод, используемый для создания образцов полимерного композиционного материала с целью обеспечения их идентичности, а также представлены результаты экспериментальных исследований, подтверждающие эффективность данного метода изменения свойств полимерных композиционных материалов.

Abstract-this article discusses the experimental effect of ultrasonic cavitation on the polymer matrix and the filler of the polymer composite material. The article describes the method used to create polymer composite material samples to ensure their identity, and also presents results of experiments confirming the effectiveness of this method of changing the properties of polymer composite materials.
IDENTIFICATION OF THE MODEL OF ELECTRICAL DISTRIBUTIVE NETWORK
Authors: Оморов Т.Т. , Осмонова Р.Ч. , Койбагаров Т.Д. , Джолдошев Б.О.
Published: October 2024

Рассматривается трехфазная распределительная электрическая сеть (РЭС), функционирующая в несимметричном режиме. Сформулирована задача идентификации математической модели РЭС в составе автоматизированной системы контроля и учета электроэнергии (АСКУЭ) на основе данных, полученных с абонентских счетчиков электроэнергии по каналам связи. Предложена методика решения задачи на основе комплексного представления переменных состояния (токов и напряжений) и оптимизации квадратической критериальной функции.

It is considered three-phase distribution electric network (DEN), operating in an asymmetrical mode. The task of identifying a mathematical model of a DEN as part of an automated meter reading and control system (AMRCS) is formulated based on data obtained from customer meters of electricity via communication channels. A method for solving the task based on a complex formulation of state variables (currents and voltages) and optimization of a quadratic criterial function is proposed.