bluuebunny/crossref_metadata_2025 huggingface dataset:
Neurosurgical approach to the treatment of otorhinogenic brain abscess (a clinical case)
Authors:   FSBEI HE Tver State Medical University of the Ministry of Health of the Russian Federation, Ngankam L. ,   SBHI Children’s Regional Clinical Hospital,Tver, Russia, Guseva E. V. ,   FSBEI HE Tver State Medical University of the Ministry of Health of the Russian Federation,Tver, Russia
Published: March 2024

Cerebral abscesses are one of the most serious pathologies of the central nervous system. At the moment, despite the prevalence of neuroimaging techniques, a great number of antibacterial drugs, and a variety of surgical treatment methods, the likelihood of fatal outcome still exists, which is influenced by the patient’s state of health and a delayed diagnosis. The article presents statistical data on this pathology. The authors detailed the etiology and pathogenesis of cerebral abscesses, noting the role of streptococcal infection. Four stages of cerebral abscess were characterized: early and late cerebritis, and early and late capsule formation. The article presents several classifications of brain abscesses: by localization, by volume, by relation to the meninges and brain matter, and by the progression speed. The presence of mainly non-specific symptoms in the clinical picture, the most widespread being headache on the side of lesion, was also noted. The authors described characteristic symptoms in various cases of abscess localizations: in lesions of frontal, temporal, and parietal lobes, and localization of the malignant process in the brain stem. A clinical case of a cerebral abscess in a teenager was used to describe the methods of neuroimaging and surgical treatment of this pathology, as well as to characterize the neurological status before and after surgery. The author used the methods of decompressive craniectomy for surgical treatment of the brain abscess formation. An essential part of postoperative treatment is rehabilitation measures, as the majority of patients still have neurological deficit preserved.
Spectrum and frequency of non-motor disorders in Parkinson’s patients in the Kursk Region
Authors:   Federal State Budgetary Educational Institution of Higher Education «Kursk State Medical University» of the Ministry of Health of the Russian Federation, Kursk, Russia, Masaleva I. O. , Ivenkov M. P. ,   Federal State Budgetary Educational Institution of Higher Education «Kursk State Medical University» of the Ministry of Health of the Russian Federation, Kursk, Russia, Boev D. A. ,   Federal State Budgetary Educational Institution of Higher Education «Kursk State Medical University» of the Ministry of Health of the Russian Federation, Kursk, Russia, Chernykh E. V. ,   Federal State Budgetary Educational Institution of Higher Education «Kursk State Medical University» of the Ministry of Health of the Russian Federation, Kursk, Russia, Volkov V. V. ,   Federal State Budgetary Educational Institution of Higher Education «Kursk State Medical University» of the Ministry of Health of the Russian Federation, Kursk, Russia
Published: March 2024

Introduction. Parkinson's disease (PD) is characterized by a long period of latent neurodegenerative process. Some patients experience non-motor manifestations in the form of autonomic (constipation, dizziness, fainting, and sleep, smell, and urination disorders), mental (anxiety and depression), and cognitive disorders that occur several years before the onset of motor symptoms [1]. Purpose of the study: to determine the spectrum and frequency of non-motor disorders in patients with Parkinson’s disease in the Kursk Region, as well as to assess the degree of their severit y. Materials and method. We examined 32 patients (18 women and 14 men) with an established diagnosis of PD (mixed type), who were treated at the Kursk Regional Multidisciplinary Clinical Hospital. The age of the patients ranged from 59 to 76 years. The mean age was 69.03±5.71 years, and the duration of the disease was 6.93±8.08 years. Non-motor symptoms and their severity were assessed using the UPDRS (Part I) and the NMSS-PD. Sleep disturbances were assessed according to the Epworth Sleepiness Scale (ESS). The Hospital Anxiety and Depression Scale (HADS) was used to study the neuropsychological status of the patients. Cognitive status was assessed according to the MMSE, Frontal Assessment Battery, and the clock drawing test. Results. Non-motor symptoms occurred in 87.5 % of the patients in the study population and are an equally significant part of the PD clinical picture. These manifestations are most often represented by autonomic (87.5 %), mental (68.7 %), and cognitive (72 %) disorders, which have a different spectrum and frequency in this group of patients. Conclusion. Non-motor manifestations of PD require special attention from a neurologist. The clinical picture of such disorders is varied. Early detection and adequate correction of non-motor disorders contributes to the main goal of PD therapy — to improve the qualit y of life of patients.
Ultrasound assessment of blood flow in the median nerve in normal conditions and in carpal tunnel syndrome
Authors:   Autonomous Non-Profit Organization «Research Institute of Microsurgery», Tomsk, Russia, Baitinger A. V. , Fomina S. V. ,   Federal State Budgetary Educational Institution of Higher Education «Siberian State Medical University» of the Ministry of Health of the Russian Federation, Baitinger V. F. ,   Autonomous Non-Profit Organization «Research Institute of Microsurgery», Tomsk, Russia, Magay Yu. V. ,   Autonomous Non-Profit Organization «Research Institute of Microsurgery», Tomsk, Russia
Published: March 2024

Carpal tunnel syndrome is the most common compressive neuropathy of the upper extremity, which manifests with painful paresthesia in the fingers and impaired hand function. The ultrasound method is successfully used to diagnose this disease. The ultrasound criterion for carpal tunnel syndrome is swelling of the median ner ve, which is a manifestation of poor circulation in the nerve. The study involved 29 people (56 limbs), divided into 2 groups: group 1 — healthy volunteers (14 people, image processing. In group 1, the intraneural type of blood flow was found in 75 % of cases, paraneural — in 3.6 %, and the blood flow was not determined in 21.4 %. In group 2, in 78.6 % of cases there was an intraneural type of blood flow, in 7.1 % — paraneural, and in 14.3 % the blood flow was not determined. There was no statistically significant difference between the groups. In the group of the patients, the area averaged at 15,350 px2, which is statistically significantly higher than the area of the median ner ve in the group of the volunteers, where this figure averaged at 6,665 px2. The average cross-sectional area of the visualized vessels of the median nerve in the group of the patients was 226 px 2, and in the group of healthy volunteers — 101.025 px2. The blood flow area in the patients was statistically significantly higher than in the volunteers, and the blood flow velocity was 5 cm/sec on average, which is statistically significantly higher than in the control group, where this figure averaged at 3 cm/sec. The type of blood supply to the median nerve does not affect the development of carpal tunnel syndrome and does not determine its origin. Analysis of blood flow velocity may be an important predictor of treatment success in patients with carpal tunnel syndrome.
Practice visitations in primary care to improve performance of cardiovascular risk management: an observational study
Authors: Smits Geert HJM , Bots Michiel L , Hollander Monika , Wit Ardine de , van Doorn Sander
Published: March 2024

Background

Despite programmatic protocolised care and structured support, considerable variation is observed in completeness of registration and achieving targets of cardiovascular risk management (CVRM) between individual GPs in the Netherlands.

Aim

To determine whether completeness of registration and achieved targets of cardiovascular risk factors improves with practice visitation.

Design & setting

Observational study utilising the care group's database (2016–2019), comparing changes in registration and achieved targets in non-visited practices and visited practices.

Method

We compared completeness scores of registration and scores of targets achieved before visitation and 1 year after visitation. Data were analysed on patient level and GP level. Separate analyses were performed among GPs who were ranked in the lower 25% of score distributions.

Results

We observed no clinically relevant improvements in completeness of registration and targets achieved in 2017, 2018, and 2019 that could be attributed to visitations in the previous year, both on individual patient level and on aggregated level per general practice. In practices ranked in the lower 25% of the distribution, improvements over time were clinically relevant and larger than the overall changes. Yet, these findings were irrespective of the number of practice visitations.

Conclusion

Practice visitations in our setting did not seem to lead to improvements in practice performance, nor in completeness of registration of risk factors or in reaching predefined target goals for cardiovascular risk factors.
Analisis Pengaruh Pemanfaatan Teknologi Informasi, Dukungan Manajemen Puncak dan Pengetahuan Manajer Terhadap Efektivitas Sistem Informasi Akuntansi di Fakultas Ekonomika dan Bisnis Universitas Diponegoro
Authors: Santoso Budi , Luhgiatno Luhgiatno , Wahyuningsih Panca
Published: March 2024

The purpose of this study was to determine the effect of the use of information technology, top management support and manager's knowledge on the effectiveness of accounting information systems. This research was conducted at the Faculty of Economics and Business, Diponegoro University. The population in this study were employees of the Faculty of Economics and Business, Diponegoro University, totaling 158 people. The sample used in this study using purposive judgment sampling method. This sample uses certain considerations that are tailored to the research objectives or research problems developed, namely 88 employees who use the accounting information system. This study uses multiple regression analysis techniques. The results of testing the hypothesis of the effect of the variable use of work information technology on the effectiveness of the accounting information system are proven. it can be interpreted that the better the use of work information technology, the higher the effectiveness of the accounting information system. Hypothesis testing of the influence of work top management support variables on the effectiveness of accounting information systems is proven, so it can be interpreted that the higher the work top management support, the more effective the accounting information system is. Hypothesis testing of the influence of the manager's knowledge variable on the effectiveness of the accounting information system is proven, so it can be interpreted that the better the knowledge the manager is given, the more effective the accounting information system is.Keywords: Utilization of information technology, top manager support, manager's knowledge, effectiveness of accounting information systems
Faktor- faktor yang Mempengaruhi Profitabilitas pada Perusahaan Property dan Real Estate di Bursa Efek Indonesia
Authors: Suliyanti Neni , Damayanti Damayanti
Published: March 2024

This study aims to analyze the effect of capital structure, sales growth, company size, and working capital on profitability in Property and Real Estate companies listed on the Indonesia Stock Exchange (IDX). This type of research is quantitative research. The population used in the study in Property and Real Estate companies listed on the Indonesia Stock Exchange as many as 30 companies. The sample in this study was obtained by purposive sampling method, namely the selection of samples with predetermined criteria. The number of samples obtained were 25 Property and Real Estate companies listed on the Indonesia Stock Exchange for the 2017-2020 period. The data collection technique used in this study is secondary data obtained from the financial statements of Property and Real Estate companies listed on the Indonesia Stock Exchange. Multiple linear regression analysis method. The results of this study indicate that capital structure has a significant positive effect on profitability, sales growth has an insignificant negative effect on profitability, company size has a positive and insignificant effect on profitability and working capital has an insignificant positive effect on profitability in Property and Real Estate companies in the 2017-2020 period.Keywords: capital structure, sales growth, company size, working capital, profitability.
Pengaruh Kepemilikan Institusional, Ukuran Perusahaan, dan Leverage terhadap Kinerja Keuangan Perusahaan Makanan dan Minuman yang Terdaftar di Bursa Efek Indonesia
Authors: Muttaqien Zainun , Damayanti Damayanti
Published: March 2024

This research aims to prove the influence of Institutional Ownership, Company Size and Leverage on the Financial Performance of Food and Beverage Companies listed on the Indonesia Stock Exchange. The sample in this study amounted to 7 food and beverage companies listed on the Indonesia Stock Exchange for the period 2016 to 2020. The sample determination in this study was conducted using purposive sampling, which is a sampling technique using certain criteria, which obtained a sample of 7 food and beverage companies for 5 years to obtain 35 observations. The data analysis technique used multiple linear regression analysis. Based on the results of the study, it shows that institutional ownership variable has a significant negative effect on the company's financial performance (ROA), the company size variable has an insignificant negative effect on the company's financial performance (ROA), the leverage variable has a significant negative effect on the company's financial performance (ROA). The results of the determination test show that the variables of institutional ownership, firm size and leverage are able to explain the variable of the company's financial performance by 46.4% while 53.6% is explained by other factors that are not included in the research model carried out.Keywords: Company Size; Institutional Ownership; Leverage
Pengaruh Integritas Siswa terhadap AcademicFraud: Dimensi Fraud Pentagon Theory (Studi Kasus Pada Siswa di Podok Pesantren Nurul Hikmah Kabupaten Lombok Barat)
Authors: Muliani Muliani , Febriana Widia , Ayu Baiq Dinda Puspita
Published: March 2024

This study was conducted to see the effect of student integrity on the tendency of academic fraud to occur using the fraud pentagon perspective. The existence of a fraud pentagon and student integrity are important factors that can be expected to reduce academic fraud. For this reason, this researcher aims to examine the effect of the pentagon fraud on academic fraud and the effect of student integrity on academic fraud. This research was conducted at the Nurul Hikmah Islamic Boarding School, West Lombok Regency, using primary data by distributing questionnaires to collect data and determine respondents based on non-probability sampling and purposive sampling. In accordance with the criteria that have been set, the questionnaire was given to students at the SMP and SMK levels at the Nurul Hikmah Islamic Boarding School. The proposed hypothesis was tested using multiple regression analysis. The results show that the pentagon fraud has a positive effect on academic fraud, and student integrity has a negative effect on academic fraud.Keywords: student integrity, fraud pentagon, academic fraud and Islamic boarding school
PENGARUH LINGKUNGAN KERJA, KEPEMIMPINAN DAN PENGAWASAN TERHADAP KINERJA PEGAWAI BADAN KEPEGAWAIAN DAERAH KABUPATEN REMBANG
Authors: Nugroho Wawan Adi , Tahwin Muhammad
Published: March 2024

Tujuan penelitian ini adalah untuk membuktikan pengaruh lingkungan kerja, gaya kepemimpinan dan pengawasan terhadap kinerja pegawai Badan Kepegawaian Daerah Kabupaten Rembang. Teknik pengumpulan data menggunakan kuesioner. Populasi penelitian ini adalah pegawai Badan Kepegawaian Daerah yang berjumlah 49 orang. Teknik pengambilan sampel menggunakan metode sampel jenuh. Teknik analisis data menggunakan analisis regresi linier berganda. Hasil penelitian menunjukkan gaya kepemimpinan dan pengawasan berpengaruh positif signifikan terhadap kinerja pegawai Badan Kepegawaian Daerah Kabupaten Rembang, lingkungan kerja berpengaruh positif tidak signifikan terhadap kinerja pegawai Badan Kepegawaian Daerah Kabupaten Rembang. Lingkungan kerja, gaya kepemimpinan dan pengawasan dapat menjelaskan 68,2% terhadap variasi kinerja pegawai, sedangkan sebesar 31,8% dijelaskan oleh faktor lain di luar model penelitian.Kata Kunci:   Lingkungan Kerja, Gaya Kepemimpinan, Pengawasan dan Kinerja.
ANALISIS BIAYA STANDAR SEBAGAI KATALISATOR EFISIENSI BIAYA PRODUKSI (Studi pada UMKM Gula Aren Langko)
Authors: Muliani Muliani , Sayuti Alfian , Murapi Ikang
Published: March 2024

Standard costs are costs that are determined in advance before starting the production process. Applying standard costs is useful for improving planning and control, and for facilitating product costing. Standard costs used by companies include standard raw material costs, direct labor standard costs and factory overhead standard costs. The standards set must be prepared at the beginning of the year so that they can be used as a benchmark in the production process which is an important factor for the company for production cost efficiency. The purpose of this study is to analyze using standard costs as a catalyst for production cost efficiency. This research uses descriptive research with a quantitative approach. This study focuses on determining production standards and production cost efficiency with analysis of variance. The object of this research is Langko palm sugar SMEs. The data collection technique used in this study was through interviews and documentation. The analysis used is analysis of variance. The results of research on Langko palm sugar SMEs show that by setting production cost standards it can support production cost efficiency, which means standard costs can be used as a catalyst for production cost efficiency.Keywords: biaya bahan baku, biaya tenaga kerja langsung, biaya overhead pabrik, biayastandar, katalisator biaya produksi, efisiensi biaya
THE INFLUENCE OF PERSON ORGANIZATION FIT, QUALITY OF WORK LIFE AND CAREER DEVELOPMENT ON AFFECTIVE COMMITMEN MODERATED JOB SATISFACTION (Case Study on Production Departement Employees of PT. Real Glass Semarang)
Authors: Paramita Patricia Dhiana , Harini Cicik
Published: March 2024

Every organization is required to be able to maintain the affective commitment of its employees, because this will make employees have high loyalty and are willing to sacrifice for the benefit of their organization. The research object is PT. Real Glass Semarang, a company engaged in the manufacture of dark grey glass using modern technology,namely sheet glass and float glass. PT. Real Glass in order to continue to exist in the midst of intense competion with other comapanies engaged in the same field, the copany experienced a problm phenomenon, wh the affective commitment possessed by employees in the production section was low. It is suspected that is motivated by the low pn orgizati fit, quality of work life and career development in the company. The research objective was to determine the impact of person organization fit, quality of work life and career development on affective commitment partially and simultaneously and to find out wether job satisfaction strengthens the impact of person organization fit, quality of work life and career development on affective commitment.The population of this research is 88 employees who work in the production departement of PT. Real Glass Semarang, while the sampling technique is a cencus, where the entire selected population is used as a sample.The analysis technique used is multiple linear regression with Moderated Regression Analysis (MRA). The calculation results show that person organization fit, quality of work life and career development partially and simultaneously have a positive and significant impact on affective commitment. Job satisfaction partially strengthens the impact of person organization fit, quality of work life and career development on affective commitment. There needs to be a special policy from the management of PT. Real Glass Semarang in order to increasethe affectice commitment of production employees, by increasing employee job satisfaction, so that il will have a positive impact on increasing person organization fit, quality of work life and career development.Keywords : affective commitment, career development, job satisfaction, person organization fit and quality of work life
MOTIVASI DAN KEPUASAN KERJA PENGARUHNYA TERHADAP KINERJA KARYAWAN KOPERASI SERBA USAHA (KSU) KENCANA MULYA SEMARANG
Authors: Astutik Windi , Indriyatni Lies
Published: March 2024

This study was structured to examine the effect of work motivation and job satisfaction on the employees performance of cooperative in Semarang. The sample used in the study were 67 employees of the Koperasi Serba Usaha (KSU) Kencana Mulya Semarang. The data collection method used is using a questionnaire distributed to respondents who are in the city of Semarang by using google forms via personal cell phones. The sampling technique used is the census sampling method or commonly called saturated sampling. The method used in this study is multiple linear. Based on the results of the analysis, it shows that partially the motivation and job satisfaction variables have a significant effect on the Cooperative Employee Performance in Semarang.Keywords: Work Motivation, Job Satisfaction, Employee Performance
LEVERAGE, ROA DAN KEPEMILIKAN INSTITUSIONAL PENGARUHNYA TERHADAP NILAI PERUSAHAAN
Authors: Nurcahyati Sinta Dea , Mohklas Mohklas
Published: March 2024

This study aims to analyze the effect of leverage, Return On Assets (ROA), and institutional ownership on firm value. The data analysis method uses panel data regression. The population in this study are companies whose shares remain incorporated in the LQ-45 index and must always be actively traded every day during the 2017-2020 period. The sample in this study used purporsive sampling method, in order to obtain a sample of 112 data. The conclusion in this study is that leverage has no significant effect on firm value, Return On Assets (ROA) has a significant effect on firm value, institutional ownership has no significant effect on firm value and leverage, Return On Assets (ROA) and institutional ownership simultaneously affect the value of the firm. company.Keywords : Leverage, Return On Asset (ROA), Institutional Ownership, Value Company
REAKSI PASAR MODAL TERHADAP PEMILIHAN UMUM SERENTAK TANGGAL 17 APRIL 2019 DI INDONESIA (Studi Kasus Perusahaan Property dan Real Estate yang terdaftar di Bursa Efek Indonesia)
Authors: Puspita Ade , Damayanti Damayanti
Published: March 2024

This study is an event study that aims to determine how much the Indonesian capital market reacts to the Simultaneous Elections on April 17, 2019 in Indonesia using abnormal indicators of returns, trading volume activity and market capitalization in property and real estate companies listed on the Indonesian stock exchange. This study used secondary data in the form of daily data on stock prices, daily data on trading volume, and daily data on the volume of shares outstanding during the period 10 days before, 1 day at the time of the event, and 10 days after the event. The day of the event was on April 17, 2019. Sampling using pusposive sampling technique. Data analysis techniques are testing against hypotheses using Paired Sample t-Test. The results showed that there was a difference in the abnormal average return before and after the simultaneous election events on April 17, 2019. Meanwhile, in the variables of market capitalization and trading volume activity, there is no difference in average between before and after the simultaneous election events on April 17, 2019. The government should maintain political and economic stability, so that the psychological factors of investors are maintained and do not cause an overreaction to the capital market.Keywords: abnormal returns, trading volume activity, market capitalization, simultaneous elections.
PEMBIAYAAN MURABAHAH, MUSYARAKAH, MUDHARABAH, IJRAH DAN ITISHNA’ PENGARUHNYA TERHADAP PROFITABILITAS 4 BANK UMUM SYARIAH DI INDONESIA
Authors: Indriyani Indriyani , Mohklas Mohklas
Published: March 2024

The purpose of this study was to find out whether Mudharabah, Musyarakah, Mudharabah, Ijrah and Itishna ' have an effect on profitability in 4 Islamic Commercial Banks. The population in this study were quarterly financial reports at Islamic Commercial Banks using the Purposive Sampling technique and 64 sample samples were obtained. For the independent variable (X) of this study are Mudharabah, Musyarakah, Mudharabah, Ijrah and Itishna ', while the dependent variable is Profitability. The method used in this study is a quantitative method and the data source is secondary data using multiple regression analysis and hypothesis testing. Partially, Murabaha has a significant effect on profitability. As well as Musyarakah, Mudharabah, Ijrah and Itishna have no effect on profitability.Keywords: mudharabah, musyarakah, mudharabah, ijrah and itishna ', and profitability.
PENGARUH PENDIDIKAN DAN PELATIHAN TERHADAP PRODUKTIVITAS KERJA KARYAWAN PADA WURYANI KONVEKSI
Authors: Romadon Ahmad Sahri , Syafitri Laela Dhessy , Ningrum Natalia Fitria
Published: March 2024

This study aims to determine the effect of education and job training on the work productivity of Wuryani Convection employees.  In this study, the population was all employees of Wuryani Convection as many as 45 people.  The type of data used is primary data and secondary data while data analysis uses multiple linear regression analysis.  The results showed that the Education Variable had no significant effect on work productivity.  Training variable is proven to have a positive effect on work productivity.  Partially, the education variable has a positive and insignificant effect on work productivity.  Partially, the training variable has a positive and significant effect on work productivity. Keywords :Education, Training, Work Productivity
PENERAPAN MANAJEMEN SUMBER DAYA MANUSIA DALAM PENINGKATAN KINERJA ACCOUNT REPRESENTATIVE DI KANTOR PELAYANAN PAJAK PRATAMA GRESIK
Authors: Gresika Yaniar , Utari Woro , Subijanto Subijanto
Published: March 2024

This study aims to knowing the performance of the Account Representative in KPP Pratama Gresik, to find out the implementation of human resource management in KPP Pratama Gresik. The research method used is qualitative with a case study approach. Data collection techniques by observation, interviews, and documentation. The data analysis technique used in this study is interactive analysis according to Miles and Hubberman, namely data reduction, data presentation and drawing conclusions or verification. The results of the study show that Account Representative performance is quite good by looking at the activities carried out when interacting directly with taxpayers or when working behind the scenes, The application of human resource management by the Head of the Office at KPP Pratama Gresik is carried out well, especially in terms of; HR placement, HR training and development, performance appraisal using qualitative and quantitative assessments. Meanwhile, compensation or allowances have been regulated separately in Presidential Regulation of the Republic of Indonesia Number 37 of 2015 concerning Employee Performance Allowances in the Directorate General of Taxes, but it is necessary to consider compensation which is the desire of the Account Representative not only in material form, but also through appreciation.Keywords: Account Representative, Management, Human Resources
TANGGUNGJAWAB SOSIAL DAN LINGKUNGAN TERHADAP KINERJA KEUANGAN : PERAN MEDIASI KEMAMPUAN INOVASI
Authors: Salsabila Kamilia Zulfa , Solovida Grace Tianna
Published: March 2024

This study aims to analyze the effect of CSR on financial performance and innovation ability, the effect of innovation ability on financial performance, and determine the mediating role of innovation ability in the relationship between CSR and financial performance of SMEs in Semarang. The data used in the study is primary data using a survey method by distributing questionnaires to 109 SMEs in Semarang. The sample used was 53 respondents. The analytical tool used is Smart PLS with partial least squares structural equation modeling (PLS-SEM) method. The results of this study indicate that CSR has no effect on financial performance, CSR has a significant effect on innovation capability, innovation capability has no effect on financial performance, and innovation capability does not mediate the relationship between CSR and financial performance. Keywords: CSR; innovation capability; financial performance
NUMERICAL INTEGRATION OF THE EQUATION OF MOTION OF A MACHINE UNIT IN STEADY CONDITION
Authors: Korabelnikov Andrey R. , Bukina Svеtlana V. , Shiryaev Kirill E.
Published: March 2024

In this article, an attempt is made to consider the question of integrating the equation of motion of a machine unit in a general form. The conclusion of analytical dependencies characterising the mechanics of the steady motion of the machine unit is given. The numerical integration of the differential equation of motion uses the method of successive approximations. When determining the operation of the moment of the resistance forces, integration was carried out for two cases – as a function of the generalised coordinate and angular velocity, as well as from the generalised coordinate and time. The equation of the mechanical characteristics of the electric motor of the studied interval and the kinetic energy values of the reduction link with the accuracy of the second order of smallness is determined. By consistently specifying the value of the angular velocity, it can be calculated with any required degree of accuracy, which will allow more accurately calculating the details and components of the lever mechanism for vibration resistance and reducing the in-tensity of the technological process.
FORMATION OF LOCAL DECORATIVE GOLD AND RHODIUM COATINGS BY STYLOGALVANISATION
Authors: Galanin Sergey I. , Sakina Yulia Е.
Published: March 2024

The article deals with design, decorative and technological features of formation of local electroplating coatings with yellow and red gold, white and black rhodium using stylogalvanics. Colours of coatings formed on specially prepared surfaces at different technological parameters are experimentally determined. Significant dependence of colour shades of coatings in RGB model on thickness, properties of the substrate surface, modes and technological features of coating formation and its subsequent processing is shown. It is shown that the process of local deposition of metal coatings by means of stylogalvanics in comparison with galvanic deposition of coatings in baths is more multifactorial, significantly depends on operator’s qualification, quality of initial surface preparation, subsequent processing operations of the formed coatings. Thicknesses of the coatings formed as a result of stylogalvanics are much less than in the traditional process in baths, which leads to a significant influence of the substrate colour on the colour of the formed coatings.
CREATION OF VOLUME-SPATIAL ORNAMENT FOR A COSTUME
Authors: Kovaleva Olga V. , Bondarenko Mariya V. , Lanina Anna A.
Published: March 2024

This article discusses a new approach to costume design through the creation of a volume-spatial ornament that can influence the shaping of the costume. Scanning and three-dimensional modelling methods in various computer programs have been studied. An algorithm for creating a volume-spatial ornament is described – scanning objects necessary for work, developing a vector ornament based on a creative source, surface modelling, printing elements. The advantages of surface modelling are the reliable construction of an object of any complexity, as well as the ability to control the location of adjacent parts. The described algorithm for creating a volume-spatial ornament can be considered to be a type of individual approach to the development of modern canvases for a costume.
JUSTIFICATION OF THE STEP OF WRAPPING THE THREAD WITH A MICROWIRE TO AVOID ITS BREAKING WHEN THE COMPLEX THREAD IS STRETCHED
Authors: Rudovsky Pavel N. , Palochkin Sergey V. , Smirnova Svetlana G. , Fefelova Tatyana L.
Published: March 2024

It has been established that the broken ends of the microwire included in the fabric for protection against electromagnetic radiation cause irritation on the skin and do not allow the fabric to be used for clothing. A theoretical analysis of the behaviour of the upholstery component when stretching a filament thread is carried out for two limiting cases. The first – the rod component is absolutely flexible, the second – the rod component is absolutely rigid. The values of the critical angle of the wrapping, at which the relative deformations of the rod component and the wrapping are equal, are obtained. At wrapping angles greater than the critical value, the wrapping component will break later than the rod component. Those, in fabric made from yarn with a wrap laid at an angle greater than the critical one, microwire rupture will not occur. This will prevent the broken ends of the microwire from reaching the surface of the fabric and the associated defects. The value of the wrapping pitch for practical use lies in the range between those calculated for the two specified limiting cases and must be determined experimentally.
FORMATION AND WAYS OF IMPROVEMENT OF CONTINUOUS TEXTILE ORNAMENT
Authors: Beschastnov Nikolay P. , Rybaulina Irina V. , Dergileva Evdokiya N.
Published: March 2024

The article discusses the main properties and features of continuous textile ornament, formed in the process of its changes during the change of historical periods. On the basis of concrete examples, the methods of its production are described, and the principles of its plastic organisation are outlined. Special attention is paid to the search for imagery in a continuous ornament based on the plastic connections of compositional construction. The text of the article analyses in detail the plant ornament of modernity, in which a continuous ornament is externally manifested in the form of an endless interweaving of leaves, shoots and flowers on the surface of the fabric, creating images of a blooming meadow, impenetrable swamps or jungles. The modern continuous ornament is considered in the context of stylistic changes of postmodernism and possibilities of computer technologies. The possibilities of improving continuous ornament by using new types of artificial and synthetic fabrics with effects arising from the peculiarities of weaving technologies are determined.
A methodology for evaluating the effectiveness of intrusion detection system based on federated learning
Authors:   St. Petersburg Federal Research Center of the Russian Academy of Sciences, Novikova E.S. , Meleshko A.V.
Published: March 2024

The article investigates the problem of applying federated learning for building intrusion detection systems. Federated learning is a way of organizing distributed learning, in which data are not transferred to a single cloud storage, and the training of models is performed locally, the formation of a common global model is performed based on the parameters of local models. The article proposes a methodology for evaluating the performance of federated trained models, including the evaluation of the training throughput. The training throughput depends on the federated learning settings, the computational resources of the interacting devices and the network bandwidth, and obviously, the use of federated learning can significantly affect the performance of the device itself. This article presents a description of the experimental setup, and the results of a series of experiments that characterize the federated learning process with different settings.
Methodology of investigation phishing attacks
Authors:   St. Petersburg Federal Research Center of the Russian Academy of Sciences, Gorda M.D. , Chechulin A. A.
Published: March 2024

The objective of this study is to develop a methodology for investigating phishing attacks. Materials from relevant articles and electronic resources on the topic of cybercrimes and their investigation were used for the methodology development. The study employs methods of analysis and synthesis, study and generalization, deduction, and induction. As a result of the analysis of the used materials, a methodology for investigating phishing attacks was developed, and its trial was conducted during the investigation of an incident related to a phishing attack in a budgetary organization. The practical contribution of this article is the potential application of the developed methodology in the investigation of phishing attacks. The scientific novelty of the methodology lies in its comprehensive and integrated approach to the investigation of phishing attacks, which improves the quality and speed of response to security incidents and strengthens preventive measures against phishing. Instead of a fragmented analysis of incidents, the proposed methodology uses a consistent and systematic approach, guiding the forensic expert’s actions from the moment of incident identification to the formation of a report. This approach ensures the completeness and continuity of the investigation process and allows to get a prompt response to attacks and minimize potential damage. Based on the analysis of a specific incident, recommendations are formulated, aimed not only at eliminating the consequences of a particular attack but also at preventing future phishing attempts.
Overview of the whalse algorithm for feature selection and extraction in machine learning
Authors:   ITMO University, Daleh A.A.
Published: March 2024

Feature selection and extraction play a key role in machine learning, helping to improve model performance and reduce data complexity. In the context of feature selection and extraction in machine learning, the Whales approach, also known as the Whale Optimization Algorithm (WOA), is often used. The unique properties of the Whales algorithm and its optimization capabilities can be useful in solving problems of feature selection and extraction. This article contains both a review of similar methods and an analysis of the Whales algorithm itself and the main stages of its application. The paper also examines the relationship between the Whales algorithm and traditional methods of feature selection and extraction and identifies future directions for research.
Some approaches to automation of information processing in civil aviation
Authors:   Moscow state technical university of civil aviation, Zatuchny D.A. , Maslov A.K.
Published: March 2024

The article discusses general approaches to the organization of the process of automation of information processing in civil aviation. The stages, necessary for the organization of this process, are given. The classification of situations in the flight of an aircraft by priority is carried out. The method of finding the minimum and maximum interval of information transmission, using the correlation function, is given. Studies of the functioning of information processing systems for various routes of its transmission, taking into account the latitude and longitude of aircraft, have been carried out.
Substantiation of the technical characteristics of laser systems for transmitting information in the hydrosphere in the optical range
Authors:   Admiral Makarov State University of Maritime and Inland Shipping, Martynov V.L. , Nyrkov A.P. , Shimanskaya M.S. , Krechetova E.V. , Dyachenko D.V. , Shimanskaya G.S. ,   St. Petersburg State University of Architecture and Civil Engineering
Published: March 2024

The exchange of information between correspondents in the optical range in the hydrosphere is an urgent and breakthrough direction of scientific and technological progress. Important tasks in this method of data transmission are the protection of the transmitted information, as well as ensuring sufficient data transfer speed when exchanging television im- ages. This article provides an explanation and calculation of the technical characteristics of laser systems for transmitting information in the optical range, with the help of which it is possible to transmit a digital television signal via a laser beam in the hydrosphere.
Analysis of the application of neural network technologies in predicting equipment failure in production
Authors:   Reshetnev Siberian State University of Science and Technology, Dorrer M.G. , Nesterov V.A.
Published: March 2024

The relevance. The article considers the solution to the problem of analyzing and predicting changes in the dynamics of measuring instrument readings and identifying patterns describing the course and possible periods of failures of technological process equipment by constructing a predictive time series model. A critically important infrastructure facility of a thermal power plant was selected as the studied one – a water pump for pumping process water into neutralizer tanks (the first stage of chemical water purification) located in the chemical workshop of the Krasnoyarsk CHP-3. The general methodology of model construction, requirements for input data arrays, preprocessing algorithms for the formation of samples used for training and testing models are described. To build a predictive model, the work used elements such as recurrent layers of long-term short- term memory LSTM, MinMaxScaler regularization, Dropout layer to reduce the effect of retraining, the ‘Adam’ optimizer using error back propagation methods and optimization using the steepest descent method using conjugate gradients, the learning error function is the average root of the error (Root Mean Squared Error, RMSE), as well as plot_predictions visualization. The algorithms are implemented in Python, in the Anaconda Jupyter Nootebook core. Based on the results of testing the training, the model showed sufficient performance of this method, since the time spent on creating the model and obtaining a forecast plays an important role when launching the model in real production conditions. In conclusion, recommendations are given to improve the accuracy of the forecast, the developed interface of the production system is presented and the directions of future research in this area are outlined.
GENERATIVE MODELS IN THE PROBLEM OF EVALUATING THE EFFICIENCY OF COMPUTER ALGORITHMS
Authors:   International Scientific and Training Center of Information Technologies and Systems, National Academy of Sciences of Ukraine and Ministry of Education and Science of Ukraine, Kyiv, Ukraine, Fainzilberg L.S. ,   National Technical University of Ukraine ",   Ihor Sikorsky Kyiv Polytechnic Institute,",   Kyiv, Ukraine,  fainzilberg@gmail.com
Published: March 2024

The author formulates definitions of computer algorithm efficiency according to a criterion that characterizes accuracy, reliability, speed, or other consumer properties. Schemes of proof experiments based on stochastic models of generating artificial data with statistical characteristics adequate to real observations are suggested. The experiments are aimed at determining the efficiency of computer algorithms that provide solutions to three different problems: the optimal stop for making a final decision during a sequential analysis of alternatives, training a linear classifier based on a finite sample of observations, and determining diagnostic signs of an ECG using the fasegraphy method. The results obtained based on statistical experiments are given. Keywords: computer algorithm efficiency, statistical experiment, artificial data generating.
CONTROL STRATEGIES IN THE PROBLEM OF APPROACH OF CONFLICT-CONTROLLED OBJECTS
Authors:   V.M. Glushkov Institute of Cybernetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine, g.chikrii@gmail.com, Chikri A.A , Rappoport I.S. ,   V.M. Glushkov Institute of Cybernetics, National Academy of Sciences of Ukraine, Kyiv, Ukraine, jeffrappoport@gmail.com
Published: March 2024

The authors propose a new approach to forming control strategies in the problem of approach of conflict-controlled objects. Modifications of the first direct method is developed for the stroboscopic strategy in the class of counter-controls where the classical Pontryagin’s condition is not satisfied. The lower resolving function is considered, which plays a key role in the formulation of the results and in the general case can be determined using the Minkowski functional of a multivalued mapping. An upper resolving function is introduced and a modified scheme of the method of resolving functions is proposed, which guarantees the termination of the conflict-controlled process in the class of quasi-strategies and counter-controls where the classical Pontryagin’s condition is not satisfied. The guaranteed times for different schemes of the considered methods are compared. The theoretical results are illustrated on a second-order model example with a special non-convex control region of the pursuer. Keywords: control strategy, resolving function, dynamic game problem, problem of approach of controlled objects.
Study of Fetomaternal Outcome in Cases of Pre-Eclampsia
Authors: M Dr. Amsaveni , Mehta Dr. Meena , Oraon Dr. Varsha , Swati Dr. Amulya
Published: March 2024

Introduction: Hypertensive disorders are among the most common medical disorders during pregnancy and continue to be a serious challenge in obstetric practice.
Aims: This study investigated the various risk factors, fetal and maternal outcome in cases of preeclampsia.
Study Design: This was a cross sectional study conducted over a period from January 2019 and June 2020. This study enrolled 100 cases of non severe preeclampsia and 100 cases of severe preeclampsia.
Methods and Materials: Participants were selected by consecutive sampling and baseline data were collected by using a predesigned and pretested structured questionnaire.
Data Analysis:Data were entered and analysed by using SPSS version 20.
The Influence of Submerged arc Welding Parameters on Bending Strength of Pressure Vessel Steel P355 N
Authors: Dorel Cioroagă Bogdan- , Linul Emanoil , George CioatăVasile , Amalia Dascăl
Published: March 2024

To be able to optimize the quality of the welded joints of products such as pressure vessels, it is necessary to know the demands to which they are subjected during operation and the mechanical characteristics that need to be considered in order to be followed to obtain the best possible quality from the point of view of mechanical resistance. This paper is focused on the specific bending strength of the welds executed on the circular contour of the pressure vessels. The parameters of the welding regime that are considered are: the voltage of the electric arc, the intensity of the electric arc and the welding speed, for which are determined evolution trends of the bending mechanical characteristics.
These trends are compared with each other, and the contribution of each parameter is observed, as well as which has the most pronounced effect on the bending resistance characteristics. The collection of data regarding the bending resistance characteristics is carried out with the help of the stress-deflection curves resulting from the bending testing of the specimens taken from welded joints under different welding regimes.