bluuebunny/crossref_metadata_2025 huggingface dataset:
Combined Effects of Surface Energy, Initial Stress and Nonlocality on Vibration of Carbon Nanotubes Conveying Fluid Resting on Elastic Foundations in a Thermo-Magnetic Environment
Authors: Sobamowo Gbeminiyi Musibau
Published: January 2024

This paper scrutinizes the simultaneous impacts of surface elasticity, initial stress, residual surface stress and nonlocality on the nonlinear vibration of carbon nanotube conveying fluid resting while resting on linear and nonlinear elastic foundations and operating in a thermo-magnetic environment. The derived partial differential equation is decomposed into spatial and temporal equations using Galerkin method of decomposition. Thereafter, the temporal differential equation is solved with the aid of method of homotopy perturbation. Studies of the significance of the model parameters reveal that the negative value of the surface stress enhances the frequency ratio while the positive value of the surface stress abates the ratio. At any given value of nonlocal parameters, the surface effect is lessened for enhancing value of the length of the nanotube. The frequency ratio is abated as strength of the magnetic field, nonlocal parameter and the length of the nanotube are increased. The nonlocality lessens the surface effects and ratio of the frequencies. At high values of nonlocal parameter and nanotube length, the natural frequency of the structure gradually approaches nonlinear Euler–Bernoulli beam limit. The ratio of the frequencies is heightened when the temperature change is reduced at high temperature while at room/low temperature, such ratio is enhanced as the temperature change is augmented. Also, the frequency ratio at low temperatures is lower than at high temperatures. The present work will be very useful in the design and control of carbon nanotubes in thermo-magnetic environment while resting on elastic foundations.
Neka pitanja kolektivnih radnih odnosa u industriji videoigara
Authors: Laleta Sandra
Published: January 2024

Industrija videoigara jedna je od najbrže rastućih industrija s velikim ekonomskim potencijalom koja zapošljava sve veći broj radnika diljem svijeta. No, njezina „tamna strana“, na koju upozoravaju različita istraživanja, su nepovoljni uvjeti rada osoba zaposlenih u ovom području: predugo radno vrijeme, niske plaće, diskriminacija i uznemiravanje radnika, neadekvatna zaštita na radu, neravnoteža posla i obiteljskog života i drugo. Sindikalno organiziranje, kolektivno pregovaranje te različite formalne i neformalne kolektivne akcije i predstavništva radnika predstavljaju instrumente kojima se uvjeti rada mogu poboljšati, ali se još uvijek nedovoljno koriste. Riječ je o temi koja zaslužuje pozornost, a u Hrvatskoj još nije dovoljno istražena. U radu se najprije analiziraju uvjeti rada zaposlenih u industriji videoigara, posebno kroz prikaz rezultata različitih istraživanja provedenih među radnicima. Zatim se daje prikaz individualnih akcija te neformalnih i formalnih kolektivnih akcija koje poduzimaju radnici zaposleni u industriji videoigara u različitim dijelovima svijeta. Analizirane su odredbe Kolektivnog ugovora za radnike Gamechuck d.o.o. iz Zagreba. Na temelju dobivenih spoznaja izveden je zaključak o važnosti koju sindikalno organiziranje ove skupine radnika te kolektivno pregovaranje, ali i različite neformalne akcije imaju za poboljšanje njihova položaja i uvjeta rada. Kada je riječ o analiziranom Kolektivnom ugovoru, može se zaključiti da se njime jamči zavidna razina prava radnika, a dodatnu pozornost trebalo bi posvetiti jasnijem uređenju radnog vremena.
The Association between Serum Procalcitonin and Periodontitis in Type 2 Diabetic Patients on metformin in Baghdad / Iraq
Authors: Hameed Zahraa , Omran Alaa
Published: January 2024

Among the most common conditions that affects teeth, periodontitis leads to destruction of the supporting apparatus of tooth structure. Procalcitonin (PCT) may be a helpful marker to determine the severity of infection, forecast the prognosis, and track the effectiveness of treatment. Aim of the study was to assess the association between the body's blood PCT level and periodontal bacterial infections in diabetic individuals on metformin treatment of 1000 mg dosage per day and contrasting it with non-diabetic people.

 A case control study conducted at the department of periodontics during a period from February to May 2022. It included 70 subjects divided into four groups according to periodontitis and diabetes (20 control and 50 patients) with matched age and gender. Assessment of clinical periodontal parameters (BOP, PLI, PPD, CAL) was done for each individual. Five ml of venous blood was taken from each participant for the quantitative determination of serum PCT and measurement of HbA1c. PCT was measured using ELISA technique.

In this study serum PCT was significantly lower in controls than that in other groups and significantly lower in GP group than that in T2DM and T2DM+ GP groups. There was a significant strong positive correlation between serum PCT and HbA1c, and a positive non-significant correlation with periodontal parameters.

In conclusion, an elevated blood PCT level has been proposed as a possible biomarker for periodontal disorders because it plays a role in periodontal inflammation. Additionally, subclinical, low grade chronic inflammation in diabetic individuals may be mediated by serum PCT, a possible proinflammatory mediator.
Chemical Characterization and Pharmacological Evaluation of Phytophenols-Etodolac Mutual Prodrugs
Authors: Shah Kamal , Krishna Gaurav
Published: January 2024

Etodolac is choice of drug for pain and inflammation but has major side effects of gastric ulcers that are due to free carboxylic group. Etodolac belongs to the chemical class of non-selective COX-inhibitor but preferentially COX-2 inhibitor. Here the ester linked mutual prodrugs of etodolac with phytophenols like vanillin, carvacrol, umbelliferone, guaiacol, sesamol and syringaldehyde were synthesized. All the prodrugs were characterized by IR-spectroscopy, 1H-NMR, 13C-NMR and mass spectrometry. Among the synthesized prodrugs, the Eto-van, Eto-umbe, Eto-sesa and Eto-syr showed improved analgesic and anti-inflammatory activity compared to etodolac. All the synthesized prodrugs showed less ulcerogenic side effects compared to etodolac.
Isolation, Identification, and Quantification of Two Compounds from Cassia glauca Cultivated in Iraq
Authors: Kanaan M Abdlkareem Shamam , Kadhim Enas Jawad Kadhim
Published: January 2024

The Cassia glauca Lam. is the tree that belongs to the Fabaceae family and is native to India has many uses in indigenous systems of medicine, folk medicine, and traditional Brazilian medicine. Has many pharmacological activities such as anti-diabetic, antibacterial, antifungal, antioxidant, anti-hemolytic, anticancer, cardio-protective, and Hepato-protection.  The aim of study is to Isolation, identification, and quantification of some compounds from aerial parts of Cassia glauca since no phytochemical investigation had previously been done in Iraq for this plant. The aerial parts were defatted in n. hexane for 48 hours. The defatted materials were extracted in 85% ethanol using the hot method (soxhlet), then the extract was fractionated using different solvents (chloroform, ethyl acetate, and n-butanol). High-performance liquid chromatography (HPLC), was used for identification and quantification by using authenticated standards, and preparative layer chromatography (PLC) was used for the isolation of the identified compounds. The isolated compounds were identified after isolation by liquid chromatography Mass Spectrometry LC-MS/MS-Q-TOF method. The different chromatographic and spectroscopic methods results indicate the presence of luteolin and chlorogenic acid in the ethyl acetate fraction and n-butanol fraction respectively and estimated the quantity as (130.77µg/1g) for luteolin, and (0.0006%) for chlorogenic acid from 50g of plant material.
Additional lighting as a factor in increasing the economic efficiency of greenhouse vegetable production
Authors:   Povolzhskiy Scientific Research Institute of Economic and Organization of Agroindustrial Complex – Subdivision of the FSBRI Saratov Federal Scientific Centre of the Russian Academy of Sciences, Saratov, Russia, Kryuchkov Gennadij G. , Providonova Natalia V. ,   St. Petersburg State Transport University of Emperor Alexander I, Saint Petersburg, Russia
Published: January 2024

Due to the imposition of sanctions against Russia, domestic agriculture is faced with the urgent task of providing the population with high-quality food of its own production, reducing the country’s dependence on imported supplies. Particular importance should be given to the development of a vegetable-growing subcomplex that provides the population with fresh vegetables and processed products throughout the year. The authors analyzed the state of the Russian vegetable growing industry. Using the example of the Saratov region, it was revealed that despite the good material and technical base and the level of infrastructure development in greenhouse vegetable growing, one of the main problems of producers of vegetables of protected soil is unstable yields. Yield volatility leads to an insufficient volume of output, which causes significant financial losses for agricultural producers. The key to solving this problem may be modern additional lighting systems, the use of which will help to stabilize the yield of cultivated crops and improve product quality. The article presents the comparative characteristics of greenhouse lamps, as well as the calculation of the economic efficiency of their implementation.
Food indices and prices in the 3rd quarter of 2023 in Russia and abroad
Authors:   VIAPI named after A.A. Nikonov is a branch of the Federal Scientific Center for Agrarian Economics and Social Development of Rural Areas – VNIIESH, Moscow, Russia, Sobolev Oleg S.
Published: January 2024

The article derives the formula of the multiple consumer price index (CPI) from the geometric Laspeyres index. An economic analysis of producer prices in the grain, milk and meat markets in Russia, the EU and the USA is presented. There was an undiminished increase in domestic bread prices, an increase in the FAO CPI for sugar and a seasonal decrease in grain prices on the world market in the 3rd quarter. Milk production in Russia, the EU and the USA for 9 months of 2023 is compared.
Analysis of experience of state measures to support small and medium-sized businesses of foreign countries
Authors:   Ural State Economic University, Ekaterinburg, Russia, Kurdyumov Aleksander V. , Shaybakova Lyudmila F. ,   Ural State Economic University, Ekaterinburg, Russia, Meshcheryagina Veronica A. ,   Ural State Economic University, Ekaterinburg, Russia
Published: January 2024

The article examines the experience of state measures to support economic entities of small and medium-sized businesses of foreign countries: USA, Great Britain, Germany, France, Japan and China. The authors analyzed state measures to support small and medium-sized businesses of foreign countries in similar economic and political development conditions with the Russian Federation for the period 2021-2022. Particular attention is paid to the study of support in the field of agriculture. The conclusion was formulated about the impossibility of achieving positive dynamics of indicators of development of small and medium-sized businesses without state support.
EDDY CURRENT METHOD FOR STUDYING INHOMOGENEITIES AND DEFECTS IN THIN METAL FILMS
Authors:   Altai State University, Barnaul, Altai Territory, Russia, Malikov V.N.
Published: January 2024

The variety of structure and specific properties associated with the small thickness of thin metal films lead to the fact that their physical characteristics differ significantly from the characteristics of the same materials in the bulk state. To determine the characteristics of thin metal films, the development of new non-destructive research methods is relevant. The article substantiates the advantages of the eddy current testing method for studying the surface of thin metal films of various metals. The design of a subminiature eddy current transducer designed to study the electrical conductivity, thickness and degree of damage of thin metal films is presented, and a hardware and software complex is designed that allows the control of the developed transducer. The study of metal films made it possible to show the inhomogeneity of the distribution of the substance over the surface of the substrate. The dependence of the signal amplitude of the developed transducer on the film thicknesswas also determined. To verify the results obtained, studies of the light transmittance of the films were carried out using the photometric method. Comparison of the measurement results obtained by the two methods showed a high degree of agreement betweenthe two developed methods for studying films.
FRACTAL NANOPARTICLES OF PHASE-SEPARATING SOLID SOLUTIONS: MORPHOLOGY-DEPENDENT PHASE EQUILIBRIA IN TUNGSTEN HEAVY PSEUDO-ALLOYS
Authors:   Pleiades Publ., Ltd., Moscow, Russia, Shishulin A.V.
Published: January 2024

In this paper, we simulate thermodynamically the morphology-dependent phase equilibria in core-shell nanoparticles of a phase-separating solid solution using the example of W-Cr heavy alloy. The morphology of a nanoparticle is described in the framework of the fractal geometry methods. Itis shown that there are two possible heterogeneous states in a nanoparticle while the compositions of phases in both states differ from each other. The dependences of mutual solubilities of components on the temperature are obtained while the behavior of these dependences significantly differs depending on the particular state and the morphology of nanoparticle under consideration. In nanoparticles of a very complicated morphology, the phase separation itself gets suppressed and the nanoparticle remains inthe homogeneous state at the temperatures significantly below the macroscopic value of the upper critical dissolution temperature. The demonstrated regularities are explained based on three mechanisms of reducing the free energy of the system and the “competition” between them. In the final section, a method for calculating the equlibrium size distributions and average characteristics of nanoparticle ensembles is described along with a technique of measuring nanoparticle fractal dimensions based on the microscopy data.
ACCELERATED TESTING OF MECHANICAL AND CHEMICAL EFFECT OF THE ENVIRONMENT ON WEAR RESISTANCE OF PARTS OF TRIBOCOUPLES UNDER COMPLEX DYNAMIC LOADING
Authors:   National University Zaporizhzhia Polytechnic, Zaporizhzhia, Ukraine, Tsyganov V.V.
Published: January 2024

The wear of tribocouplings parts under complex dynamic loading conditions is considered. A methodology for accelerated testing of friction pairs under multi-component dynamic loading is offered. The designs stand for modeling the processes of contact interaction, and studies of the wear resistance of tribocouplings, which operate under complexdynamic loading conditions with various lubricating and cooling media, are presented. The results of the impact assessment of mechanic and chemical transformations in the contact zone of tribological interfaces for wear resistance according to the developed method are presented. The variable effectiveness evaluation of the degradation influence products of macromolecular compounds in the composition of cutting fluid on wear resistance of metals in the contact zone of tribocouplings are analysed. The use ofthe presented materials allows rationally selecting friction pair materials for given operating conditions, developing new wear-resistant materials and coatings, lubricant composition and cooling mediums.
IMPLEMENTATION OF FUNCTIONAL BLOCK RADIO UNIT BASED ON SYSTEM-ON-CHIP
Authors:   Al-Farabi Kazakh National University, Almaty, Kazakhstan, Ibraimov M.K.
Published: January 2024

This article discusses the implementation of the Radio Unit functional block based on the System-on-Chip. The primary focus was on integrating Radio Unit blocks such as modulation and Fast Fourier Transform on Field-Programmable Gate Array. Technical aspects of design, module testing, and Radio Unit block performance optimization are thoroughly examined. The results demonstrate that when separating the functionality of the 7.3 technology Fifth Generation (5G) radio block, the modulation module uses the minimum Field-Programmable Gate Array resources compared to other blocks. The Fast Fourier Transform block can meet delay requirements at the maximum Field-Programmable Gate Array size and clock frequency of 250 MHz. This article serves as a resource for engineers and researchers interested in optimizing the development and integration process of high-performance functional blocks in modern radio systems.
PEMBERDAYAAN REMAJA KARANG TARUNA RW 08 TAMBUN MELALUI PEMBUATAN MACRAME DALAM UPAYA MINAT BERWIRAUSAHA
Authors: Perdhana Timorora Sandha , Thamrin Djuni , Fitriani Yulia , Khasanah Fata Nidaul
Published: January 2024

Wirausaha merupakan potensi pembangunan, baik dalam jumlah maupun dalam mutu wirausaha itu sendiri. Selain sebagai keterampilan, wirausaha juga merupakan pengetahuan yang sangat penting karena melalui wirausaha seseorang dapat memperoleh, menyalurkan dan mengembangkan kreatifitasnya untuk dimanfaatkan menjadi penghasilan untuk dapat digunakan dalam kehidupan sehari-hari. Solusi permasalahan yang dialami oleh mitra dalam kegiatan pengabdian ini diantaranya kurangnya pengetahuan tentang minat berwirausaha untuk mendukung dalam peningkatan ketrampilan remaja. Dari kurangnya pengetahuan terkait dengan wirausaha tersebut dapat mengakibatkan permasalahan yang dialami 1) terbatas nya ketrampilan sehingga tidak ada pemasukan untu mengembangkan karang taruna 2) menumbuhkan minat dalam berwirausaha sebagai bentuk pengembangan diri remaja. Metode dari kegiatan pengabdian ini yaitu dengan melakukan pendampingan dan pelatihan terhadap mitra. Hasil yang dihasilkan nantinya adalah kemampuan sumber daya manusia pada usaha kecil dalam pengoptimalan ketrampilan pada remaja karang taruna.

Keyword : Wirausaha, Remaja, Karang Taruna
Implementasi Aplikasi Pelayanan Desa Untuk Penerapan Smart Village Di Desa Sumber Jaya Kecamatan Tambun Selatan
Authors: Fathurrozi Ahmad , Pamungkas R Wisnu Prio , Kustanto Prio , Habibi Ahmad , Aziz Fawwaz
Published: January 2024

Sumber Jaya Village, located in South Tambun District, Bekasi Regency, West Java, has an area of 636 hectares and is surrounded by several other villages. In 2022, the population reached 9,063 inhabitants. Despite its size, the village faces challenges in the development of information technology, where most of the information dissemination is still done manually and most of the village's potential has not been made public. This has resulted in difficulties for local people in accessing information from the village government and in conveying their suggestions and aspirations. The main problems in Sumber Jaya Village include the difficulty of accessing information and complaints, as well as the manual process of handling certificates from village officials. To overcome these problems, the Community Service Program (PKM) aims to implement the smart village concept with proposed solutions including application development and providing training to the community. PKM is arranged in three years.
Sosialisasi Harmonisasi Akuntabilitas Perencanaan Keuangan Desa Tahun 2023 (Studi Pada Kantor Desa Sekarwangi Kecamatan Cibadak Kabupaten Sukabumi)
Authors: Pramukty Rachmat , Arfian Arfian , Efrianto Gatot , Rudiansah Bambang , Wandy Yusef , Irianto Heru , Sushanty Vera Rimbawani , Azhar Satrio Waliyudin , Estiawan Belva Yulivio , Hafidzi Muhammad Kamil , Hidayat Manarul , Azzahra Salsabila Putri , Yahya Ananda Intan Fadhilah , Hidayatullah Akmal , Nurfath Al Fachri , Ramadhanty Denisa , Nurcahyani Lala Intan , Armeita Ade , Safa’at Birkham Pahmi , Riandini Anyeu , Yusuf Fauzi Maulana , Nurahim Yudi , Salsabila Annisa Septi Rahayu , Wardhana Fajar Wira , Syihab Firiyal Luthfi , Wahyudianto Raafi Catur , Wibowo Daffa Satrio , Dermawan Alif Fito , Malau Aulia Rohman , Alfianti Fifi Nur , Anggraini Vella Dwi , Sitorus Betris Kristin Sosor Ambar Wati
Published: January 2024

Pengabdian kepada masyarakat ini bertujuan untuk mengkaji implementasi sosialisasi  Harmonisasi Tanggung Jawab Perencanaan Keuangan Tingkat Desa (SIHAPKD) Tahun 2023 di Kantor Desa Sekarwangi Kecamatan Cibadak Kabupaten Sukabumi. SIHAPKD merupakan sistem yang bertujuan untuk meningkatkan akuntabilitas dan transparansi  perencanaan keuangan tingkat desa. Pengabdian kepada masyarakat ini menggunakan metode deskriptif kualitatif dengan metode observasi dan wawancara. Pengumpulan data dilakukan melalui kuesioner dan wawancara mendalam dengan pemangku kepentingan, observasi partisipatif, dan analisis dokumen terkait pelaksanaan SIHAPKD. Hasil pengabdian kepada masyarakat menunjukkan bahwa pelaksanaan sosialisasi SIHAPKD di Kantor Desa Sekarwangi berlangsung secara bertahap dengan beberapa tantangan.  Ditemukan bahwa penerimaan dan pemahaman SIHAPKD oleh masyarakat desa  masih terbatas sehingga diperlukan upaya lebih lanjut untuk meningkatkan partisipasi dan pemahaman mereka. Selain itu, hambatan teknis dalam  pemahaman dan sosialisasi juga menjadi hambatan yang perlu diatasi. Namun sosialisasi SIHAPKD di kantor desa Sekarwangi dinilai sebagai langkah positif dalam meningkatkan akuntabilitas dan perencanaan keuangan desa. Layanan ini memberikan gambaran pelaksanaan sosialisasi SIHAPKD di tingkat desa dan memberikan rekomendasi untuk meningkatkan efektivitasnya. Makna dari pengabdian ini adalah pentingnya meningkatkan kesadaran dan partisipasi aktif masyarakat desa dalam pengawasan keuangan desa serta perlunya dukungan teknis yang memadai agar pemahaman tersebut dapat terimplementasi dengan baik
Knowledge Sharing Digital Marketing Sebagai Upaya Membangun Jiwa Kewirausahaan Dari Produk Lokal Desa Sekarwangi
Authors: Khasanah Fata Nidaul , Untari Dhian Tyas , Hutahaean Erik Saut H , Perdini Tiara Anggita , Mulyanto Erwan
Published: January 2024

The use of technology in the field of entrepreneurship has become a central point that plays a key role in shaping the contemporary business landscape. Rapid changes in technological developments have a significant impact on the way businesses operate, innovate and compete in the global market. In the current era, business actors are faced with the need to adapt to advances in digital technology in order to survive in business competition. Especially considering that most consumers make online purchase activities. Analysis of the condition of partner problems obtained that many local products have more selling value, such as palm sugar products, coffee products and lemongrass processed products. But the obstacle is related to product marketing. The village MSME players hope that their local products can be known to the wider community. Based on the phenomenon of problems faced by partners, knowledge sharing activities related to digital marketing are carried out as an effort to build an entrepreneurial spirit through three stages of activities, namely counseling, training, and mentoring. The results of the activity received a good response by partners, there was interest in partners to be able to market their local products digitally through the use of their mobile devices.
The use of SDR as sensor nodes of the intelligent system of management of radio emission data collection
Authors:   State University of Information and Communication Technologies, Kyiv, Makarenko A.
Published: January 2024

The article is devoted to the study of the use of software-controlled radio (SDR) in the context of the growing demand for wireless technologies and radio-electronic devices. It focuses on the problems of oversaturation of the radio spectrum, the need to automate the management of radio systems, security, the use of machine learning and AI, the integration of various systems, as well as economic benefits. The paper examines the SDR as a tool to address these challenges, particularly due to its ability to operate over a wide frequency range and the use of digital signal processing. The role of SDR in radio monitoring and its importance in identifying and eliminating sources of interference are also revealed. The main attention is paid to the development of the algorithm for performing OFDM-modulation operations in the SDR of intelligent control systems of the radio emission data collection network. The proposed algorithm aims to optimize data transmission, reducing the transmission of redundant bits of information and promoting efficient use of the radio spectrum. The article describes in detail the architecture and functionality of SDR, including an analysis of the impact of OFDM technologies on the efficiency of data transmission within software-controlled systems.
Development of a recommendation system for the selection of network equipment based on the Java technology stack
Authors:   State University of Information and Communication Technologies, Kyiv, Honcharenko O. I.
Published: January 2024

The emergence of e-commerce and the growth of the amount of available content creates an overload of large volumes of information. At the same time, recommender systems, being powerful data filtering tools and using a variety of algorithms and analysis methods, reduce this overload by generating the most relevant elements for a particular user, which contributes to more effective and efficient selection decisions. The article discusses the main types and methods of recommender systems, methods for calculating the similarity coefficient of users and elements, metrics for evaluating the quality of work of recommender systems. The main problems of recommender systems are highlighted. The means of development of the client and server part of the system of recommendations for the web application of finding the optimal configuration of network equipment are considered, such as: HTML, CSS, JavaScript, Spring, Spring Boot, Spring Data JPA, Spring Security, Thymeleaf, MySQL. The architecture of a recommender system web application built using these tools is described.
Development of electronic learning system for automation of educational process
Authors:   State University of Information and Communication Technologies, Kyiv, Kreshchanov M. O.
Published: January 2024

The state of modern LMS systems was studied on the example of samples of foreign and Ukrainian online education systems, which made it possible to study the structure of the electronic educational environment, available tools (available functionality), advantages and disadvantages of various types of electronic learning systems. The analysis of existing LMS systems and the state of Ukrainian online education showed the need and relevance of developing a global Ukrainian free LMS system that would allow to effectively organize the educational process and conduct training in accordance with the standards of the Ministry of Education and developed educational programs on a remote basis. As a result, the "LearnUA" e-learning system was developed. It was created using the Microsoft Visual Studio Code (VS Code) source code editor, the XAMPP cross-platform package, the PHP scripting language, the object-oriented prototyping language JavaScript (JS), and the MySQL relational database management system. The "LearnUA" e-learning system is focused on managing users and courses, supporting and creating educational content, ensuring effective electronic document flow. It is able to combine the organization of planning, implementation and evaluation of the learning process. The main component of the created LMS system are courses that can be created within the informational educational environment of an educational institution or in a corporate environment for the organization of distance learning for staff of a network company. To access the main functionality of "LearnUA", the user is given the opportunity to log in to the system. The system provides for a clear division of roles: the administrator – manages the system, provides the initial password for entering the system to the user (student, teacher) during authorization; teachers/mentors – course owners who create and manage them; pupils/students – participants who are involved to an existing course using a course invitation link. The course owner must have access to the context menu (create, edit courses and tasks, attract participants to an existing course, conduct evaluations, view reports, event log). Information on a specific course should be located on several tabs (sections) depending on the role of the user (owner or participant): a list of all available tasks, course settings, a list of course participants, evaluations, etc. The developed LMS system is of great practical importance, as it allows you to organize effective management of users and courses through a local server. In the future, the system is planned to be improved by adding new functionality.
Two-axial alignment mirror for optical-quantum generator resonator (Tomsk)
Authors: Maksak V I. , Treputneva Т. А.
Published: January 2024

There are currently laser systems used at many stages of construction. They allow to solve engineering problems with great accuracy. The paper considers the design of a twoaxis alignment unit.

Purpose: The aim of this work is to design the two-axial alignment mirror of the optical quantum oscillator resonator.

Methodology: Deformation of elastic elements are determined by the energy method. The relation between rotation angles of the alignment screw and the resonator mirror normal is determined analytically.

Research findings: The influence of design parameters of the assembly on its performance is evaluated. A comparative analysis is presented for the sensitivity of two-axial and uniaxial knots of the alignment mirror. The advantage of the two-axial knot is shown by calculations. The obtained results can be applied in laser construction technology.
Reliability of pile foundations in the Arctic zone of the Russian Federation (Tomsk)
Authors: Burkov Р. V. , Volkov А. Е.
Published: January 2024

One of the main problems associated with the operation of building structures in permafrost conditions, is the deformation of support systems due to changes in soil geometric parameters. The methods used today for assessing the health of buildings and support systems are not universal. One of the important indicators during the buildings operation, which allows us to determine the health of the permafrost soil–pile foundation–structure system, is the vibrational amplitude of the supporting structure.

Purpose: The aim of this work is to conduct a comprehensive analysis of the pile foundation reliability in the Arctic zone of the Russian Federation.

Methodology/approach: Modern monitoring and remote sensing technologies are used to collect the real-time data. Numerical modeling was carried out to assess long-term trends in changes in meteorological parameters and their impact on pile foundations. New methods and technologies are developed to improve the stability of pile structures in permafrost conditions and permanently frozen soil.

Practical implications: The obtained results can be used in design and operation of buildings in permafrost conditions. Moreover, these results can be used to develop new technologies and equipment for improving the performance in the oil and gas and other industries relating to engineering structures in the Arctic zone of Russia.
Convolutional neural network for building exterior and interior classification (Kemerovo, Tomsk)
Authors: Pylov Р. А. , Diagileva А. V. , Nikolaeva Е. А. , Maitak R. V. , Shalygina Т. А.
Published: January 2024

Purpose: The concept development of convolutional neural network for real-time distinguishing between building interior and exterior.

The relevance of the topic of the scientific article is determined by the technology integration into everyday life. Houses are increasingly referred to as a smart house. One of the elements of this control system, is robot vacuum cleaner, which cleans various surfaces. Difficulties encountered by such a technique largely depend on the environment definition, in which it is located.

The intelligent system can independently distinguish between building interior and exterior, thereby greatly increasing the performance of the firmware complex of modern technology in both domestic and industrial segments.
The Role of Transcranial Doppler in Patients with Cryptogenic Stroke
Authors: Kim Seung Min , Park Jae Young , Ha Sang Hee , Kim Bum Joon
Published: January 2024

Identifying the stroke mechanism is crucial for secondary prevention of ischemic stroke. However, approximately 20% to 30% of patients with ischemic stroke do not display a discernible cause after standard diagnostic evaluation and are classified as having cryptogenic stroke. Most cryptogenic strokes are believed to be of embolic origin, referred to as embolic stroke of undetermined source. Several potential causes, including occult atrial fibrillation, aortic arch atheroma, non-stenotic atherosclerosis, coagulopathy, and patent foramen ovale (PFO), are significant contributors to cryptogenic stroke. Among these, PFO-associated strokes often manifest as small cortical lesions in the posterior circulation and are associated with fewer traditional risk factors. Ischemic stroke is considered a high risk if there is a large PFO with significant shunting or the presence of an atrial septal aneurysm. Although transesophageal echocardiography is regarded as the gold standard for diagnosing PFO, its invasiveness, high cost, and challenges in certain stroke patients necessitate alternative approaches. Recently, transcranial Doppler (TCD) has emerged as a valuable screening tool for detecting high-risk PFOs, as supported by recent research. Accurate determination of the culprit PFO responsible for ischemic stroke remains crucial for guiding appropriate treatment decisions. This article provides a comprehensive review of the different modalities used to diagnose PFO, strategies for assessing the risk of PFO causing paradoxical embolism, and the role of TCD in patients with cryptogenic stroke caused by other etiologies.
Two Cases of Thrombus Resolution Unrelated to Large Artery Atherosclerosis or Alteplase Use
Authors: Jang Ye-Ji , Lee Kee Ook , Kim Hyun-Kyung , Seo TaeHo , Roh Yoo Jeong , Shin Dong Hyun , Oh Seung-Hun , Lee Kyung-Yul , Kim Ok Joon , Kim Tae Gon , Kim Sang-Heum
Published: January 2024

Thrombus resolution is generally associated with a favorable prognosis. Patients with thrombus resolution often present with erythrocyte-rich thrombi, frequently associated with large artery atherosclerosis or alteplase use. This might explain the increased rate of cervical carotid artery occlusion and reduced incidence of atrial fibrillation in patients with thrombus resolution. However, recent reports have demonstrated that thrombus resolution can occur owing to several etiologies and various factors. We present two cases of thrombus resolution: one associated with internal carotid artery dissection and the other with a left atrial appendage thrombus. Notably, both were considered to be unrelated to large-artery atherosclerosis or alteplase use.
Hirayama Disease with Isolated Spinal Cord Atrophy
Authors: Lee Kyung-won , Kim Taewon , Kim Seong-Hoon , Hong Yun Jeong , An Jae Young
Published: January 2024

This report presents a young-aged man with Hirayama disease who had muscle atrophy and weakness strictly confined to the C8/T1 myotome that consistently accorded with electromyographic results. In the magnetic resonance imaging (MRI) evaluation, there was only a prominent isolated spinal cord atrophy without any typical flexion MRI features of Hirayama disease. We speculate that it may be possible to have only isolated spinal cord atrophy as a limited form in Hirayama disease even in the absence of anterior displacement of the dura in the flexed position. These findings emphasize the importance of understanding both typical and atypical limited findings of the MRI imaging features of Hirayama disease, because it’s critical to distinguish Hirayama disease, mostly showing benign course, from fatal conditions like amyotrophic lateral sclerosis.
Causes of safety risk during tower crane operations on construction sites in Vietnam
Authors: Long Ngo Thanh , Giang Nguyen Hoang
Published: January 2024

The construction industry holds significant importance for any nation; however, it remains a high-risk sectorcharacterized by a significant number of fatalities and grave injuries. Among these risks, tower crane operationsstand out as a leading contributor to the heightened risk rate. This research paper endeavors to assess the safety risks inherent in tower crane operations at construction sites in Vietnam. This assessment is conducted from the perspective of various stakeholders involved in tower crane activities, namely managers, operators, and workers. To achieve this, a meticulously structured questionnaire utilizing a five-point Likert scale was formulated and distributed to gather insights from 78 proficient individuals engaged in tower crane-related tasks. The outcomes from all participants collectively underscore 21 distinct causes that give rise to safety risks during tower crane operations in Vietnam. Nonetheless, noticeable differences in opinions appear when looking at answers from managers, operators, and workers. The operators and workers showed that “Winds (wind intensity seriously affects the lifted load and tower crane itself)” are the most common safety risk. On the other hand, the managers highlighted the issue of whether the “Tower crane operator is an in-house staff member or outsourced” as their main concern. The managers, operators and workers showed that “Experience and skills of the operator during operating tower crane”, “Maintenance management degree of the tower crane and lifting aids”, and “Overhead power lines in the tower crane’s work region” are the most severe cause of safety risk, respectively. Operators and workers pointed out that the "Degree of maintenance management for tower cranes and lifting aids"has the highest safety risk level. However, managers highlighted that “Winds (wind intensity seriously affects the lifted load and tower crane itself)” pose the highest safety risk level.
Edukasi Penggunaan Media Pembelajaran Alternatif untuk Eksplorasi Sensorik dan Motorik ABK
Authors: Setiawan Rudi , Nova Resfita  , Putri Kholida  , Raditia Fath Kharomatudzaky  , Sekar Ambarsari Sujatmiko Putri  , Sepiah Dwi Cahyani  , Erdyvania Apritrycia  , Nur Aida Wassi`atu Sakdiah  , Denis Pramudia Putra  , Pingki Novita Berliana
Published: January 2024

Augmented dan Virtual Reality merupakan media pembelajaran yang interaktif dan menarik yang mengkombinasikan konten dunia nyata dan virtual. Selain itu, media pembelajaran ini dapat menjadi modalitas untuk eksplorasi stimulasi sensorik dan motorik Anak Berkebutuhan Khusus (ABK). Edukasi yang diadakan di SLB Negeri PKK Provinsi Lampung oleh tim PKM ITERA bertujuan untuk mengenalkan pada guru-guru manfaat dan fungsi Augmented dan Virtual Reality ke pada siswa. Metode yang digunakan berupa teknik ceramah dan peragaan sebagai sosialisasi kepada guru guru dengan beberapa tahapan, yang diawali dengan persiapan kegiatan, pelaksanaan kegiatan, dan evaluasi kegiatan. Berdasarkan hasil evaluasi didapatkan bahwa terdapat peningkatan signifikan pengetahuan dan kemampuan 23 orang guru pada persentase skor capaian dari yang sebelumnya rerata ≤50% menjadi ≥76%. Pada interpretasi juga meningkat yang rerata sebelumnya “tidak baik” menjadi “sangat baik”. Hasil analisis diperoleh dari rerata perbedaan di lima indikator penilaian pada masing-masing materi Augmented dan Virtual Reality. Jadi, potensi siswa terfasilitasi pada sarana eksplorasi semakin tinggi.
EFL TEACHERS’ ATTITUDES AND EXPERIENCES ON THE IMPLEMENTATION OF MULTILITERACIES
Authors: Sujiati Ria , Jaya Aswadi , Rosmiyati Evi , Noviati
Published: January 2024

The main problem in this research  is: what are the elements that influence the attitudes and experiences of EFL teachers in implementing multiliteracy, and how can EFL teachers be used as role models for implementing multiliteracy in terms of their attitudes and experiences? The purpose of this research is to find out how the attitudes and experiences of teachers towards students during the learning process affect them and how multiliteracy can be applied during the teaching and learning process, whether it makes learning effective or vice versa. This research was carried out at SMP PGRI 1 of Palembang. This research was carried out using qualitative methods. First, the researcher made observations at school to find out how effective the teaching and learning process was in class, especially in English lessons. Furthermore, the researchers conducted interviews with the English teacher and distributed 20 questionnaires to 30 students in class VIII.4 in the even-numbered 2022/2023 academic year. Based on the findings from this study, the researcher concludes the results of the research analysis. And from the results of this analysis, the researchers concluded that 90% of SMP PGRI students liked English lessons and always got good motivation and role models from the teacher, meaning that the teacher could provide good motivation to students and always give a good attitude during the learning process. Students are also more active in the application of multiliteracy because there is good interaction between the teacher and students.
COLLABORATIVE WRITING ON GOOGLE DOCS: PERCEPTION OF ELEVENTH GRADE STUDENTS’ DESCRIPTIVE PARAGRAPH IN PGRI VOCATIONAL HIGH SCHOOL 1 PALEMBANG
Authors: Yonanda Pramestry , Herlina Herlina , Akbar Zam M. Ali
Published: January 2024

The researcher's experience when conducting field experience practice  (PPL) at PGRI Vocational High School 1 Palembang served as inspiration for this research. The researcher found that students experience problems when they want to write, including due to a lack of practice, a weakness in using correct grammar, and a lack of motivation. Therefore, in this study, the researcher used a collaborative learning method using Google Docs. The aimed of this research is to implement the use of Google Docs with grade XI students in collaborative writing of descriptive paragraphs and to determine students' perceptions of the use of Google Docs in collaborative writing of descriptive paragraphs. This research used the descriptive-qualitative method with a sample of 32 students. Data were collected through observation, questionnaires, and documentation. Looking at the results of students' implementation of the use of Google Docs in collaborative writing of descriptive paragraphs, it is said to be successful because students are able to exceed the KKM score of 75. For students' perceptions, it can be said to be a positive perception because most of them strongly agreed and agreed on the 20 questionnaire statements that researchers distributed; this means that students were able to write the text better.
MICROTEACHING LESSON ON INCREASING THE STUDENT TEACHERS’ ABILITY IN TEACHING ENGLISH
Authors: Sihite Destri , Jaya Aswadi , Mortini Asti Veto
Published: January 2024

The goal of this study is to find out what student teachers think about the benefits of the Microteaching Lesson for Teaching Ability at PGRI Palembang University. The study's team of researchers used a qualitative descriptive strategy. There are 30 sixth-semester English education student teachers as the participants. Data collection techniques included observation, interview, questionnair, and documentation. In order to collect data, the researcher interviewed 30 student teachers to learn more about five different issues. She then gave a questionnaire containing 15 statements to 30 student teachers. The findings of the questionnaire showed that students believed that microteaching had a beneficial effect on their capacity to instruct.  Based on the results of the interviews, the researcher also came to the conclusion that the narrative presentations of the students demonstrated how their perceptions of the microteaching course affected their teaching strategies. Students think that by taking part in microteaching, they will be able to improve their teaching abilities through lesson preparation, content explanation, time-management, and teaching self-confidence abilities.

Keywords: microteaching, student teachers, and English
THE RELATIONSHIP OF READING INTEREST AND CONFIDENCE IN ELEMENTARY SCHOOL STUDENTS' ENGLISH LITERACY ABILITIES
Authors: Marhayani Anisa
Published: January 2024

This thesis discusses the relationship between interest in reading and self-confidence towards the literacy abilities of elementary school students. This research aims to determine the relationship between interest in reading and self-confidence on the English literacy skills of elementary school students. This type of research is correlational research using quantitative methodology, the subjects of this research are class IV students at SD Negeri 231 Palembang, the sample is class IV.C. The results of the research were multiple correlation regression tests to obtain how big the relationship between independence (interest reading and self-confidence) on the dependent variable (English literacy ability) elementary school students who are at a very strong level because they obtained a score of 0.882. Then the F test of the hypothesis shows that H0 is rejected and Ha is accepted because the calculated F hypothesis = 25.975 > F table = 3.385 and the significant value is 0.000 < 0.05. The magnitude of the contribution between interest in reading and self-confidence on the English literacy skills of elementary school students using the determinant coefficient test obtained a result of 67.5%, while the rest was influenced by other factors.
THE EFFECTIVENESS OF THE TALKING STICK LEARNING MODEL ON ENGLISH LEARNING OUTCOMES OF CLASS IV STUDENTS OF SD NEGERI 21 PALEMBANG
Authors: Maharani Nur Padila , Heldayani Eni
Published: January 2024

This thesis discusses the effectiveness of the talking stick learning model on class students' English learning outcomes IV SD Negeri 21 Palembang. This research aims to determine (1) the English learning outcomes of fourth grade students at SD Negeri 21 Palembang (2) to determine the English learning outcomes of students using the talking stick learning model (3) to determine whether the takking stick learning model is effective on language learning outcomes. English fourth grade students. This type of research is Quantitative Experimental research, namely True Experimental design with a pretest-posttest control group design, the subjects of this research are class IV students at SD Negeri 21 Palembang, the sample is class IV.B as the experimental class, and class IV.A as the control class . Based on the results of descriptive data analysis, the average score obtained for the two groups, namely the control class (pretest) was 47 and the posttest results were 69 with a difference of 23, while in the experimental class before treatment (pretest) it was 61 and after treatment (posttest) it was 85 with difference of 25. Meanwhile, based on the calculation results in the t-test calculation, the value of t_count=2.95 is obtained when compared with t_table 37, which is 1.687, meaning t_count> t_table, so Ho is rejected and Ha is accepted. So it can be concluded that the talking stick learning model is effective on the English learning outcomes of class IV students at SD Negeri 21 Palembang.