bluuebunny/crossref_metadata_2025 huggingface dataset:
THE CURRENT STATE OF THE E-COMMERCE AND DIGITAL TECHNOLOGIES MARKET IN RUSSIAN RETAIL
Authors:   Plekhanov Russian University of Economics, Suray Natalya M. , Myakinina Natalya P. ,   National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Baranova Valeria A. ,   National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Teplaya Naila A. ,   Moscow State University of Technologies and Management named after K. G. Razumovsky (the First Cossack University)
Published: March 2024

Digital transformation is a global priority for the development of the global economy. By the end of 2023, global sales in the field of e-commerce amounted to 6,3 trillion.The main foundation for the large-scale development of digitalization is the introduction and application of “end-to-end” digital technologies. The purpose of this work is to analyze the current state of the e-commerce market, as well as to study the introduction of digital technologies into the activit ies of companies in the field of domestic retail. The article presents trends in the use of artificial intelligence technologies in the retail sector; analyzes the leading industries in Russia in digitalization; presents successful cases of the use of artificial intelligence in domestic retail. Theoretical approaches to the terminological understanding of digital technologies in retail are analyzed.
COMPARATIVE ANALYSIS OF THE RESULTS OF MILK RATINGS IN THE ASPECT OF PROVIDING THE POPULATION OF RUSSIA WITH HIGH-QUALITY FOOD
Authors:   Plekhanov Russian University of Economics, Suray Natalya M. , Tatochenko Aleksandr L. ,   Institute of Public Administration, Tatochenko Irina M. ,   Institute of Public Administration, Zyleva Galina V. ,   Rostov Institute – Branch of the All-Russian State University of Justice (RPA of the Ministry of Justice of Russia), Baranova Valeria A. ,   National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Published: March 2024

Given the shortage of milk in the Russian Federation (per capita consumption does not exceed 75% of the norm recommended by the Russian Ministry of Health), the risks of counterfeit products appearing on the domestic market increase. In this regard, the problem of objective assessment of the safety and quality of dairy products, especially drinking milk, as the most accessible to the consumer, becomes relevant. Such an assessment should be based on a system of quantitative indicators that fully reflect the biological, physicochemical and consumer properties of the product. The results of the study showed the high reliability of the Roskachestvo rating data, covering about 70% of drinking milk brands (both pasteurized and ultra-pasteurized) sold on the domestic Russian market. The “Expert’s Choice” rating is characterized by extremely low representativeness and a controversial methodology for calculating the rating functionality, but at the same time it quite accurately names high-quality brands of UHT milk. The Roskontrol rating is distinguished by a selective approach to the selection of analyzed brands (preference is given to well-known brands) and obvious bias - products of manufacturers who do not cooperate with the company, as a rule, receive underestimated ratings. Insufficient volumes of milk production by the Russian agro-industrial complex create the preconditions for product falsification: in the segment of pasteurized milk its share is about 8%, and in ultra-pasteurized milk – about 18%. At the same time, more than 55% of domestic brands sold on the domestic market are of excellent quality, and more than 70% are of good or higher quality.
RETAIL IN RUSSIA: TRENDS AND CHALLENGES
Authors:   Plekhanov Russian University of Economics, Popenkova Daria K. , Stukalova Irina B. ,   Plekhanov Russian University of Economics
Published: March 2024

This study uses an integrated approach, which consists in researching megatrends and identifying challenges for retailers and the state contained in trends. The analysis of megatrends allowed us to conclude that there are three groups of factors for the development of the world in general and trade in particular – political, technological, and social (sustainable development). The author’s interpretation of megatrends is shown: changing globalization, aging of the population, climate change and pollution of the planet, robotization and employment of the population, growth of the middle class, restructuring of enterprises and industries. The paper conducted a study of megatrends affecting the development of trade in the medium term, followed by the identification of challenges for two levels of subjects – the state and retailers. Awareness of these challenges will be useful for retailers when changing development strategies, as well as for the Ministry of Industry and Trade when making adjustments to the existing draft Trade Development Strategy.
INFRASTRUCTURE SUPPORT IN A LARGE FOREIGN TRADE ORGANIZATION WALMART
Authors:   Plekhanov Russian University of Economics, Mamedov Onur
Published: March 2024

In this study, the author performed an analysis of infrastructure support in a large foreign organization. One such example is the world-famous American retail chain Walmart. The network is represented in 24 countries of the world, is actively developing and increasing its capacity. Investment projects are aimed at various infrastructure resources, including trade, warehouse, personnel, information, information and communication technologies, etc. Money invested in the above-mentioned infrastructure resources is a factor in maintaining leadership positions and progressive development. It is important for domestic companies to study and adopt the best practices of the organization under study, as well as use them in their activities for improvement. After all, infrastructure support allows not only to operate stably on the territory of the institution, but also to enter other markets, increase the client base and economic indicators.
OWN COMMUNICATION CHANNELS AS A WAY TO PROMOTE A TRADE ORGANIZATION
Authors:   Plekhanov Russian University of Economics, Leonova Julia G. , Tciselskii Nikolay M. ,   Plekhanov Russian University of Economics
Published: March 2024

The article discusses one of the important areas of marketing work within a trade organization – communication with the consumer. It is emphasized that interaction with the target audience through its own communication channels helps to achieve many management goals facing a modern trade organization. The Russian retail sector is growing rapidly, new forms are emerging, and various sales channels are developing. The high level of market competition encourages trade organizations to actively use marketing promotion tools that generate customer interest and loyalty. The transformational processes of the business environment are closely related to the intensive development of e-commerce. Accordingly, communication channels in the Internet space have recently become the most extensive in terms of coverage, while the website of the trade organization and its presence on social networks play a special role. The main goals that a trade organization usually sets when communicating with consumers or the entire target audience are to provide information about the brand, form customer loyalty, inform about a product, service, promotion, special project, etc., effectively “rebuild” from competitors, stimulate customer demand, process objections, collect data for analytical work, etc. In order to effectively interact with customers through their own communication channels, it is necessary to think through a content strategy. Content strategy is the most important element of a trade organization’s competitive presence on social networks, which means that the quality of its development directly affects the results that communication in this channel brings. An effective content strategy provides for the following mandatory elements: a communication message (an idea that should remain in the audience’s memory after interaction), an archetype (a visual image reflecting the style of communication), a rubricator (defines the types of content used), as well as key performance indicators. A well-built mechanism of interaction with the customer audience through its own communication channels contributes to the active promotion of a trade organization in the modern commodity market.
INNOVATIVE APPROACHES TO ASSORTMENT FORMATION IN THE CONTEXT OF DIGITALIZATION
Authors:   Plekhanov Russian University of Economics, Zaborina Polina A. , Nikishin Aleksandr F. ,   Plekhanov Russian University of Economics
Published: March 2024

Forming an optimal assortment is one of the most effective methods of increasing the efficiency of a trade organization. However, in the context of modernization of the trade sector, under the influence of the emergence of innovative technologies, traditional methods of forming an assortment can no longer provide trade organizations with the required level of competitiveness. In this regard, the issue of creating innovative approaches to assortment formation becomes relevant. This article examines current trends in the field of assortment formation, and also explores possible approaches to the use of digital technologies for these purposes.
FORMING AN ASSORTMENT BASED ON CUSTOMER PREFERENCES
Authors:   Plekhanov Russian University of Economics, Surovets Anastasia A. , Nikishin Aleksandr F. ,   Plekhanov Russian University of Economics
Published: March 2024

Forming an assortment with well-selected product categories using customer preferences largely affects the efficiency of a trading organization. This article examines the interaction between assortment and consumer preferences when choosing goods in specific situations that have occurred in Russia in recent years.
CURRENT TRENDS AND PROSPECTS FOR THE DEVELOPMENT OF THE E-COMMERCE MARKET
Authors:   Plekhanov Russian University of Economics, Bragin Leonid A. , Nikishin Aleksandr F. ,   Plekhanov Russian University of Economics, Pankina Tatyana V. ,   Plekhanov Russian University of Economics
Published: March 2024

The article examines the issues that determine the trends and prospects for the development of online commerce in Russia, analyzes the dynamics and structure of this market segment. The study of the assortment and regional structure of online sales allows us to identify the peculiarities of market development and determine the main prospects. The impact of online commerce on the trading industry as a whole is being studied. The trends and features of the activities of marketplaces are considered.
On the methodology of researching the consumption of dust raw materials for the production of unedged and edged lumber
Authors: Ferents O.B. , Mayevskyy V.O. , Marchenko N.V. , Kopynets Z.P. , Andrashek Yo.V.
Published: March 2024

The peculiarities of determination of volume and quality of dust raw materials are described in accordance with the regulations, which were cancelled from 01.01.2019 and with regulations that will remain in force. Determination of volume and quality of dust raw materials under various current regulations will inevitably create a number of inconveniences and conflicts between sellers and consumers, in particular regarding the cost of timber, setting norms for the consumption of dust raw materials in the production of timber, as well as obtaining a certificate of conformity of wood raw materials for exporters of wood products. The methodology of experimental researches of the consumption of dust raw materials for the production of unedged and edged lumber was developed. The main stages of the developed methodology include measuring the size and setting of the group of quality logs before sawing, measuring the size of dusty lumber with recording in the journal of accounting and statistical processing of experimental data. A methodical set of experimental log sawing and journals of accounting lumber and logs during experimental studies were developed and recommended for using.
The influence of stability of technological operations on the efficiency of functioning of automatic lines in woodworking
Authors: Orikhovskyy R.Ya.
Published: March 2024

The Article studies the influence of stability of technological operations and the location of machines with different stability and reliability on the efficiency of automatic lines. With the help of simulation modeling of the processes of functioning of automatic lines, which consist of machines of different productivity, the influence of the stability of the equipment on the productivity of the production system in stochastic conditions is investigated. Improving the productivity of automatic lines is carried out by developing optimal equipment layout schemes, structural and parametric optimization and reservation. The aim of the study is to establish the nature of the impact of the stability of technological operations on the performance of the automatic line in the event of a random change in the duration of technological operations. In stochastic operations research problems, it is too difficult to obtain analytical dependences of the qualitative indicators of the technological process on the operating conditions of the equipment. To achieve this goal, a universal method of statistical modeling is used, which simulates the process of automatic lines on a computer.          Detailed studies of the process of automatic lines with stochastic duration of technological operations provide an opportunity to scientifically substantiate the experience of woodworking equipment and create conditions for designing optimal automated systems in terms of productivity, reliability and cost-effectiveness and identify ways to increase productivity of automatic lines by technical and organizational measures. Composing automatic lines with new high-performance machines is one of the ways to improve the productivity of lines, but not always economically justified, because it does not eliminate, but only weakens the influence of random factors on the efficiency of the technological process and creates more complex stochastic factors. One of the ways to solve this problem is to ensure maximum rhythm of operation of existing machines in automatic lines by increasing the stability of the equipment.
Strengthening of structural steel st3 by high-speed friction method in the technological environment of carbon
Authors: Kapral Yu.P. , Ozymok Yu.I. , Burdyak M.R. , Palyuh B.I.
Published: March 2024

Effectiveness researches of strengthening of structural steel St3 by high-speed friction method in the technological environment of carbon have been conducted. The billets of round chopping made of St3 steel were strengthened by the method of high-speed friction at the variable mode factors: the feed speed of the billets and the pressing force of the disk to the billet. The researches were conducted in the technological environment of carbon and air. Physico-mechanical characteristics of the obtained layers were measured after strengthening. According to the results of the research  the microhardness of the layer at depths up to 150μm was found to be significantly higher in the the technological environment of carbon  than  in the environment of air on all modes. At the further distance from the upside microhardness  is approximately the same during strengthening in both modes. Such increase in microhardness can be explained by the fact that the upside layers of the metal are melted and saturated with carbon because of the significant heat release from friction. Steel microhardness increases due to the tempering while carbon concentration increases in steel. At the depth 50μm from the upside due to the strengthening in the technological environment of carbon microhardness increases by 13…25% depending on strengthening modes. In case of strengthening in the technological environment of air the microhardness of upside layers (up to 150 μm) is lower than maximum microhardness. Comparing the results of different modes strengthening was found that the highest physico-mechanical indicators of strengthened layer on the steel St3 billets can be obtained under the following strengthening modes: pressing force of the disk to the billet – 800H; the feed speed of the billets – 0,5 m/min. Maximum microhardness is about 8,5 GPa at the depth of 200μm during such strengthening modes. Microhardness is about 8 GPa at the depth of 200…550μm and is begining to decrease till starting microhardness at the depth of 550μm to 850μm. The billets in the form of a tube made of St3 steel are used for production of band-sawing machine directors. Comparing the obtained results and the results of the activity [1] it is proved that for the production of band-saw machine directors  it is efficient to use full-bodied tubes because the side thickness of the hollow tube is not sufficient for heat dissipation and effective use of the self-hardening effect.
Investigation of the process of bonding interlining materials to flexible bases
Authors: Hrytsak S.A. , Ilkiv M.M. , Solonynka V.R. , Bilyy Ya.M.
Published: March 2024

The work studies the bonding strength of most typical flooring materials (foam rubber, felt, batting) with flexible bases (foam rubber, cardboard, cover fabric) in different combination. In the process of studies, the nature of  destruction of glue joints was also monitored. Bonding of provo-diels with one-component adhesive on the elastomeric and solvent basis of DENLAKS SPG 2077. When conducting basic experimental investigation, the width of the interlining specimen was taken as being 50 mm; the length of the specimens was 200 mm.The threshold value of strength (minimum) was 0,5 kgf. The main variables of the experimental studies were glue spread (40-65 g / m2 – controlled by the weight method) and the open time (10-360 s).To carry out experiments, the B-plan was used.Based on the obtained regression equations of the second order, the graphic dependences of the function on variable factors were constructed. In most cases, the maximum strength of the connection can be achieved with an open exposure time of 10 s and an glue spread of 65 g/m2. We believe that for upholstered furniture manufacturers, when gluing flexible bases with flooring materials, it is sufficient to adhere to the adhesive consumption in the range of 40-45 g/m2 at an open exposure time of 10-100 s. Using these guidelines will help to ensure that the adhesive strength of the adhesive is properly bonded to the flexible substrates.
Research of the influence of the operating parameters of the process of heat treatment of the wood of ash on the form stability of the combined furniture boards
Authors: Ilkiv M.M. , Solonynka V.R. , Hrytsak S.A. , Bilyy Ya.M.
Published: March 2024

It has been established that the process of thermal modification of wood is an environmentally friendly way of protecting wood. Thermal modification of wood also makes it possible to significantly improve the appearance of wood of low-grade species by changing their color. Method and the results of experimental research of form stability of the combined furniture boards. The influence of mode parameters of the process of heat treatment of wood on the shape resistance of the received boards is determined. The mathematical and graphical dependence of the form stability of the combined furniture boards on the operating parameters of the process of heat treatment of the wood of ash were obtained. It is substantiated that the flatness of furniture panels is greatly influenced by the technological accuracy of the equipment used in the final calibration of finished panels. It has been investigated that the temperature of the thermal modification process is more influenced by the plane of the combined furniture panel than its duration. It is established that the results of experimental studies of the flatness of combined furniture boards, almost all of them do not meet the requirements of the standard. Only combination furniture panels made from a combination of ash wood sections obtained at a modification temperature of 190 ° C and treatment times of 4 and 10 hours with sections of untreated wood meet the requirements of the standard. The deviations from the flatness of the experimental shield data are 0.29 and 0.34 mm, respectively. The justification is made that the unsatisfactory results can be explained by the fact that the individual parts of which the combined shield consists of react differently with the humidity of the environment. It has been found that the combined furniture panels, the sections of which are treated with temperature t = 220 ° C, have the ability to retain their geometric dimensions and shape better than when treated with temperature t = 160 ° C or without treatment. It is recommended to use the results obtained during student preparation and in production conditions to obtain quality products that meet the requirements of the standards.
Research of reliability and stability of automatic lines in woodworking
Authors: Orikhovskyy R.Ya.
Published: March 2024

In Article, the problem of modern methods of determination of reliability of the equipment for the purpose of increase of efficiency of functioning of automatic lines at the woodworking enterprises is considered. The influence of equipment reliability on the stability of technological operations is analyzed. Decreased reliability leads to a significant decreased in the valid productivity of automatic lines. Improving the reliability of automatic lines is performed by developing optimal schemes of equipment layout, structural and parametric optimization and reservation. Analysis of the reliability of automatic lines makes it possible to assess the reliability of the production system and its elements, taking into account the strategy of maintenance and repairs, as well as the impact of the external environment. Such tasks are solved using quantitative methods of reliability research. To design automatic lines, different variants of research objects are compared and substantiated. Analyzing the reliability of complex systems take into account the validity of the models, the reality of the results, the adequacy and accuracy of the models, the simplicity and convenience of obtaining results, as well as the scope of tasks to determine quantitative indicators of reliability. The performed researches give the chance to confirm that reliability of the technological equipment considerably influences actual productivity of an automatic line and its efficiency as a whole. A significant increase in the variance of the production interval with a decrease in the reliability of machines in the automatic line causes an intensive decrease in the coefficient of stability and efficiency of the technological line. The coefficient of stability of the equipment decreases with a decrease in its coefficient of readiness. Improving the reliability of automatic lines is carried out by developing optimal schemes of equipment layout, structural and parametric optimization and redundancy.
The cupping of lumber depending onchangeoftheir moistureand geometric characteristics
Authors: Udovytska М.V. , Tysovskyj L.O. , Mayevskyy V.O. , Udovytskyi O.M. , Mysyk M.M. , Mayevska O.M.
Published: March 2024

Laminated panels are common among structural elements for the production of a variety of wood products. Most studies of laminated structures are limited to the analysis of their physical and mechanical characteristics. In the case of using laminated panelsas the facade surfaces of joinery and furniture, the importance of their aesthetics is also important. The quality of the laminated structures is conditioned by the properties of its individual sections, so it is important to take into account the properties of these sections for the rational choice of the scheme for the formation of the laminated structure and to predict its quality. The main reasons for the possible change in the shape of the surfaces of the laminated structures are described.  Drying and swelling lead to a change in the size and shape of both parts and products of wood and lumber used for their manufacturing. The warpingof lumber is a pronounced defect.  The main causes of the lumber warpingare the anisotropy of the properties of the wood and the unevenness of its structure, as well as the uneven change in moisture in different structural directions. The lumber, depending on their location in the log, has unequal resistance to the transverse cup warping.  When calculating moisturedeformations, the concept of relative deformation of drying is used.  Quantitative characteristics of wood drying are the corresponding coefficients of drying characterizing the change in geometric dimensions.  If the drying of the layers of the board is not equal, then such boards will have a transverse cup warping. In order to solve the problem of rational choice of the formation scheme of laminated panel structures and predicting their quality even before gluing, the mathematical model for the theoretical study of the shape change of lumber was developed. Obtained engineering formulas for calculating the coefficients of wood drying show that the form change of lumber depends mainly on its size, moisture and location in the log. To determine the magnitude of the shrinkage coefficients of the lumber layers, it is advisable to use the shrinkagecoefficients in the radial and tangential directions.
Study of the influence of breed and grinding modes on the specific productivity of grinding skin
Authors: Gayda S.V. , Petryshak I.V. , Somar G.V.
Published: March 2024

It is investigated that wood species influences the indicators of grinding process: surface roughness, specific skin productivity, skin efficiency, cutting force, which in general also depend on the speed of cutting and feeding, pressing force, abrasive grain size. It is confirmed that the specific productivity of the skin during the grinding of spruce is higher by 14.25-18.77% than when processing oak wood. It is established that with the increase of the feed rate the height of the irregularities increases, as the thickness of the chips, which is removed by one active grain, increases. This is significant for tree species with lower density and hardness. It is investigated that with the increase of the feed rate during the treatment of the oak wood surface the specific productivity of the sanding skin increases by 24.62-31.40%, and in spruce – by 23.14-24.02%. It is established that with the increase of grinding time during the treatment of the oak wood surface the specific productivity of the skin decreases by 162.68-190.40%. and in spruce – by 114.29-176.09%. The specific productivity of the skin during the grinding of spruce is higher by 18.90-22.47% than when processing oak wood. It is confirmed that with increasing grain size of the abrasive, the purity of the polished surface deteriorates, ie the value of the roughness of the treated surface is directly proportional to the grain size of the abrasive. It was found that the presence of oils in spruce causes rapid salinization of the skin, ie to reduce its efficiency. It was found that the sequence of use of the positions of the skins help to increase the productivity of grinding and obtain the purity of the desired class. To carry out effective grinding to obtain a quality surface, the following input processing values are recommended: cutting speed 20-30 m / s; feed speed 6-8 m / min; specific clamping force 2.2-4.4 kPa; grain size of skins: P180-P150; P120-P100; P90-P60.
Evaluation of the quality of timber sorted according to different standards
Authors: Moroz P.O. , Mayevskyy V.O. , Kopynets Z.P. , Shchupakivskyy P.B. , Myskiv Ye.M.
Published: March 2024

The expediency of conducting comparative studies of the assortment of dry sawn oak timber established according to different regulatory documents has been verified: by the current standard - DSTU EN 975-1-2001 and the standard cancelled in 2019 - GOST 2695-83. A methodology for conducting experimental studies of timber assortment has been developed and tested. It has been established that there is a certain correlation between the results of the evaluation of the quality characteristics of the investigated timber, in accordance with the requirements of the relevant regulatory documents. In particular, higher-grade timber according to GOST 2695-83 corresponded to higher grades according to DSTU EN 975-1-2001, but the presence of a different number of grades in the standards used, 5 in DSTU EN 975-1-2001 and 3 in GOST 2695-83, predisposes a certain redistribution of timber among the grades. The studied timber of grade 1 established according to GOST 2695-83 was redistributed into 3 grades (Q-FA, Q-F1a, Q-F1b) according to DSTU EN 975-1-2001, grade 2 timber established according to GOST 2695-83 was redistributed into 2 grades (Q-F1b, Q-F2) according to DSTU EN 975-1-2001, including the lowest quality, and grade 3 timber established according to GOST 2695-83 was also redistributed into 2 grades (Q-F2, Q-F3) according to DSTU EN 975-1-2001.
Avaliação da detecção de focos de calor por sensoriamento remoto para o Parque Nacional do Itatiaia
Authors: Tomzhinski Gustavo Wanderley Tomzhinski , Coura Pedro Henrique Ferreira , Fernandes Manoel do Couto
Published: March 2024

O sensoriamento remoto e, em particular, a detecção de focos de calor por satélite constituem parte importante do sistema de monitoramento de incêndios florestais dos dois principais órgãos federais ligados à prevenção e combate dessas ocorrências, o ICMBio e o IBAMA. Utilizando por base os dados georreferenciados de incêndios registrados pelo Núcleo de Prevenção e Combate a Incêndios do Parque Nacional do Itatiaia do período de 2008 a 2010 e os polígonos dos grandes incêndios que ocorreram no Parque em 2001, 2007 e 2010, obtidas por interpretação de imagens dos satélites LANDSAT 5 e CBERS 2, foi avaliada a efetividade e acurácia dos focos de calor identificados pelo Banco de dados de queimadas (BDQueimadas-INPE) para a área do Parque Nacional do Itatiaia e entorno de 3km. Foram analisadas informações dos satélites AQUA, TERRA, ERS-2, MGS-02 e os das séries NOAA e GOES para a área e período estudados, totalizando 92 focos de calor, cujas informações foram comparadas com as de 101Registros de Ocorrência de Incêndio (ROIs). Observou-se uma omissão de 96% das detecções de focos de calor em relação aos incêndios registrados. Os satélites AQUA e TERRA, que carregam sensores MODIS, apresentaram os melhores resultados, tanto na detecção dos incêndios quanto na acurácia do posicionamento dos focos detectados em relação à área queimada.

Palavras-chave: detecção de incêndios florestais; relatório de ocorrência de incêndios; sensoriamento remoto.
Uma abordagem histórica do fogo no Parque Nacional da Serra do Cipó, Minas Gerais - Brasil
Authors: Cardoso Ribeiro Marilene , Cortes Figueira José Eugênio
Published: March 2024

O Parque Nacional da Serra do Cipó, em Minas Gerais - Brasil abriga diversas fitofisionomias do Bioma Cerrado, além de áreas representativas de Mata Atlântica. Os registros históricos de fogo de origem antrópica na região da Serra do Cipó datam do século XVIII. Desde então, pelo menos, o fogo tem sido usado com frequência pelos habitantes dessa região como ferramenta para renovação de pastagens, limpeza de terreno, e, não obstante, com o intuito de agressão ao Parque. Apesar da recorrência desse distúrbio na história do Parque Nacional da Serra do Cipó e da importância do conhecimento da especificidade dos efeitos do fogo nas populações biológicas, comunidades e também na paisagem local, para gestão de tal distúrbio dentro e no entorno do Parque, apenas alguns estudos envolvendo o fogo foram conduzidos até hoje nessa Unidade de Conservação (UC). Nos últimos três anos, uma mudança no regime de incêndios vem sendo observada dentro dessa UC, com registros negativos de queimadas na estação seca e ocorrência de incêndios naturais, deflagrados por raios, durante a estação chuvosa, o que poderia ser interpretado como um tímido retorno ao regime de fogo natural desses ecossistemas. Tal mudança seria, na verdade, um reflexo das ações conjuntas tomadas a partir de 2001, com o objetivo de reverter o quadro de queimadas anuais que atingiram o Parque até 2007. O manejo adequado do fogo dentro do PARNA Serra do Cipó tem sido um desafio para seus gestores, assim como o tem sido em todas as outras unidades brasileiras criadas com o propósito de conservação de um Bioma no qual o fogo é parte integrante da história de vida de seus organismos.Â
Pengaruh Dimensi Kualitas Pelayanan terhadap Kepuasan Penumpang Kapal Laut pada Terminal Penumpang Gapura Surya Nusantara PT. Pelabuhan Indonesia (Persero) Regional 3 Tanjung Perak
Authors: Setiawan Prisca Titan , Rumambi Freddy Johanis
Published: March 2024

Penelitian ini dilakukan untuk mengetahui pengaruh kepuasan penumpang melalui dimensi kualitas pelayanan yang diberikan oleh Terminal Penumpang Gapura Surya Nusantara milik PT Pelabuhan Indonesia (Persero) Regional 3 Tanjung Perak terhadap kepuasan penumpang yang menggunakan jasa terminal penumpang. Kepuasan penumpang merupakan variabel dependen, dan tangible, reliability, responsiveness, assurance, dan empathy merupakan variabel independen. Penelitian ini merupakan penelitian kuantitatif yang proses analisisinya menggunakan Partial Least Square (PLS) dengan software Smart PLS versi 4.0 Populasi dari penelitian ini adalah seluruh penumpang kapal laut yang menggunakan jasa Terminal Penumpang pada tahun 2022. Jumlah sampel yang mengisi kuesioner untuk dilakukan observasi sebanyak 100 orang responden. Hasil penelitian menunjukan bahwa reliability, responsiveness, dan empathy berpengaruh secara positif dan signifikan terhadap kepuasan penumpang pada Terminal Penumpang Gapura Surya Nusantara PT Pelabuhan Indonesia (Persero) Regional 3 Tanjung Perak.
Pengaruh Rasio Likuiditas, Aktivitas, Profitabilitas Dan Kepemilikan Institusional Terhadap Kebijakan Dividen Perusahaan Subsektor Farmasi Di Bursa Efek Indonesia
Authors: Rayhanatuzzahra Rayhanatuzzahra , Wahjudi Eko
Published: March 2024

Penelitian dilakukan untuk mengindikasikan pengaruh rasio keuangan dan presentase kepemilikan institusional mempengaruhi kebijakan dividen pada perusahaan subsektor farmasi di Bursa Efek Indonesia (BEI). Pengukuran kebijakan dividen dilakukan menggunakan Dividend Payout Ratio (DPR), yang menggambarkan persentase laba yang dilunasi sebagai dividen kepada pemegang saham. Metode penelitian yang diaplikasikan adalah metode kuantitatif, dengan penggunaan data sekunder yang diperoleh dari laporan tahunan perusahaan dalam periode 2017-2021. Teknik sampling yang digunakan adalah purposive sampling, dimana peneliti memilih 9 perusahaan dari total 12 perusahaan yang sesuai kriteria penelitian. Metode analisis yang digunakan adalah regresi linear berganda. Peneliti menganalisis keterkaitan antara rasio likuiditas (current ratio), aktivitas (total assets turnover), profitabilitas (return on assets), dan kepemilikan institusional dengan DPR. Pengujian hipotesis parsial menggunakan uji t, hasil penelitian menunjukkan bahwa current ratio, total assets turnover, dan kepemilikan institusional tidak mempengaruhi DPR. Return on assets terbukti mempengaruhi DPR. Variabel independen tersebut sebesar 41,2% berkontribusi terhadap DPR. Berdasarkan hasil penelitian analisis deskriptif perusahaan dengan kode KLBF dan SIDO bisa dijadikan pertimbangan bagi investor karena dividen yang dibagikan cenderung stabil.  Hasil penelitian ini berlaku untuk periode dan sampel yang digunakan dalam penelitian tersebut, dapat berbeda jika diterapkan pada periode atau sampel yang berbeda. Selain itu, perlu dilakukan penelitian lanjutan dengan melibatkan faktor lain yang mungkin dipengaruhi kebijakan dividen pada perusahaan subsektor farmasi di Bursa Efek Indonesia.
Acercamiento al análisis sociolingüístico de la abertura vocálica en Granada
Authors:   Universidad de Granada, Campos Sarmiento Celia
Published: March 2024

The vowel opening of Eastern Andalusian is, together with elision, aspiration and assi-milation, a consequence of the lenition of consonants such as /r/, /l/, /d/, /θ/ and /s/ in implosive position. When considering elided /-s/, the compensatory nature of this phe-nomenon has generated extensive debate about the phonological status of open vowel correlates. It has been observed that these vowel segments preserve the inflectional and morphological values of the sibilant through the articulatory reinforcement of the opening, strengthening the eastern tendency to levelling with the peninsular standard, contrary to what is observed in the western southern variant. However, in the absence of objective studies that delve into the nature and determinants of this phenomenon, we present an exploratory sociolinguistic study based on the PRESEEA corpus of Granada to determi-ne what social factors influence vowel opening of /-o/ before final /-s/. After the acoustic and statistical analysis of the sample, the repercussion that the generation, the sociocul-tural level and the gender of a speaker have on the degree of vowel opening will be ve-rified, revealing findings related to the linguistic prestige and the consolidation of the two divergent aspects existing within the Andalusian varieties, the western and the eastern.
ANALYSIS OF DETERMINANTS OF HEALTHY BEHAVIOR OF POST-TROKE PATIENTS IN THE CITY OF BANDA ACEH
Authors:   Master Of Public Health, Postgraduate Program At Muhammadiyah University Of Aceh, Banda Aceh, Aceh, Indonesia, Nafisah Saida , Hermansyah Hermansyah ,   Aceh Ministry Of Health Polytechnic, Banda Aceh, Aceh, Indonesia, Haris Amen ,   Master Of Public Health, Postgraduate Program At Muhammadiyah University Of Aceh, Banda Aceh, Aceh, Indonesia
Published: March 2024

Stroke sufferers have a high risk of experiencing recurrent strokes, but many stroke sufferers do not change their lifestyle behavior to be healthier, such as consuming foods high in fat and salt, lack of physical activity, not avoiding cigarette smoke, not getting enough sleep and not controlling stress. This quantitative research with a cross-sectional study design aims to determine the factors related to the healthy behavior of post-stroke sufferers in Banda Aceh City. Sampling was carried out by incidental sampling of 95 post-stroke sufferers who sought outpatient treatment at the Neurology Polyclinic and Medical Rehabilitation Polyclinic at Meuraxa General Hospital, Banda Aceh City. Data collection was obtained through interviews conducted from February 16 to March 10 2023. Data analysis used the logistic regression test. The research results show that as many as 60% of post-stroke sufferers have unhealthy behavior. This unhealthy behavior of post-stroke sufferers is associated with middle smoking status (OR=84.70; 95%CI=2.19-3282.15; p=0.017), low education (OR=7646.98; 95%CI=39, 32-1487138.0; p=0.001), secondary education (OR=248.91; 95%CI= 2.67-23225.21; p=0.017). Low education level is the most dominant factor related to unhealthy behavior, so it is hoped that health workers will provide education about unhealthy behavior and its consequences for poststroke sufferers and carry out regular monitoring and motivate patients to achieve their goals for recovery.
Directions for modifying the artificial bee colony algorithm to optimize control parameters for complex systems
Authors:   Branch of the National Research University ", Bulygina Olga V. ,   MPEI",   in Smolensk, Kulyasov Nikolay S. ,   Plekhanov Russian University of Economics, Yartsev Denis D. ,   Russian Research Institute of Information and Technical and Economic Research on Engineering and Technical Support of the Agro-Industrial Complex (Rosinformagrotech)
Published: March 2024

In recent years, bioinspired algorithms based on the use of a population approach and a probabilistic search strategy have become especially popular among researchers involved in multidimensional and multicriteria optimization. Such algorithms are based on the principles of cooperative behavior of a decentralized self-organizing colony of living organisms (bees, ants, birds, etc.) to achieve certain goals (for example, to meet nutritional needs). However, their practical application encounters a number of difficulties leading to a decrease in convergence. This article discusses the possibility of modifying the artificial bee colony algorithm by using a hybridization strategy with various data mining methods. One of these difficulties is the lack of a reasonable approach to determining initial search positions. As a solution, it is proposed to divide the population into clusters, the centers of which will be the initial positions. The need for interaction between individuals makes it advisable to use fuzzy clustering, which allows the formation of intersecting clusters. Another difficulty is associated with the choice of “free” parameters, for which the authors have not developed recommendations for choosing their optimal values. To solve this problem, it is proposed to use the idea of coevolution, which consists in the parallel launch of several interacting subpopulations, for each of which different “settings” are applied. The proposed algorithm is applicable to multidimensional optimization tasks, in which it is necessary to find such a combination of different types of elements belonging to some “large” population that will ensure the achievement of the maximum effect under given restrictions. Examples of such tasks are determining the species and quantitative composition of plants to form the terrestrial ecosystem of a carbon farm or mass recruiting, which consists of selecting a large number of personnel for the same positions.
Mathematical model of a horse rider simulator and its program implementation in the “Wolfram Mathematica” computer mathematics system
Authors:   Peoples’ Friendship University of Russia named after Patrice Lumumba, Badyaeva Vladlena K. , Kaspirovich Ivan E. ,   Peoples’ Friendship University of Russia named after Patrice Lumumba, Mukharlyamov Robert G. ,   Peoples’ Friendship University of Russia named after Patrice Lumumba
Published: March 2024

Riding simulation machines allow training horse-back riders regardless of environmental and weather conditions, horse fatigue, stable remoteness and other factors. Riders can practice complex movements without fear of potential injury related to sometimes unpredictable behavior of the horse. This type of training machines requires special software for selecting the relevant action mode for the person during the rider’s practice. Thus, the selected behavior of the horse can be simulated and the injuries of horse-back rider can be avoided. For this purpose, the model of horse-back rider, taking into account its training level and the horse motion, is required. The model of “person – simulation machine” combination is proposed in the article. The proposed model allows developing operating modes taking into account the sportsman-training machine interaction. The mechanical model is an exosuit with a mobile pole, consisting of four links, the rider’s feet, shins, hips, and the corps are attached to. The pole corresponds to the mass center of the horse, the rider interacts with by standing on the stirrups. The pole motion is implemented by a telescopic link attached to immobile base. The relative rotations of the links are implemented by cylindrical hinges with negligible friction. The proposed model has been implemented as software in the “Wolfram Mathematica 11.3” environment. It has been designed for training machine dynamics simulation of the “horse ­– rider” system. The software includes several modules: 1) the module for specifying the structure of training machine mathematical model, generalized coordinates, and for auto-compilation of the corresponding system of differential equations; 2) the module for specifying the programmed model motion and calculation of the required control torques in the hinges; 3) the module for the Cauchy problem numerical solution; 4) the module for the animated visualizing of the model motion, and for exporting the obtained graphic results and numerical calculations. The developed software allows conducting dynamics analysis of mathematical model for the considered system based on the solution of both direct and inverse dynamics problems. Also it can be suggested for designing training machines with programmed operation mode. It has been shown that application of this software accelerates the development of training machines.
Fault diagnosis of synchronous generators by computer simulation of an external magnetic field
Authors:   Branch of the National Research University “MPEI” in Smolensk, Balovnev Denis I.
Published: March 2024

Currently, the development of non-invasive diagnostic methods for electric machines and especially generators, as the main producers of electric energy, using magnetic field fixation sensors is an urgent scientific and technical task. To solve this problem, research has been conducted to develop a method for troubleshooting a synchronous generator by analyzing an external magnetic field. The article discusses the main issues of computer modeling of an external magnetic field in the FEMM 4.2 system for troubleshooting. Mathematical expressions are given for creating a computer model of a synchronous generator in two-dimensional space, on the basis of which a numerical solution of the external magnetic field is formed using the finite element method. The modeling takes into account the design features of the synchronous generator. The main stages of work in the FEMM 4.2 system are defined. The geometric model of the synchronous generator is imported from the computer-aided design system. The physical properties of all elements of the model are determined by the structural materials of the synchronous generator and the external space. The control program, created on the basis of the algorithm presented in the article, allows you to simulate the rotation of the inductor of a synchronous generator, automate the calculations of the electromagnetic field and display the results. An example of using a computer model of a synchronous generator for troubleshooting by examining an external magnetic field is given. Based on the results of a numerical solution of the external magnetic field, a harmonic analysis of the magnetic induction of a working synchronous generator was carried out. The article shows that a diagnostic sign of static eccentricity of a synchronous generator inductor is the appearance of even harmonics in the magnetic induction spectrum of an external magnetic field Based on the results obtained, the dependence of the growth of even harmonics on the magnitude of the displacement of the inductor of the synchronous generator is determined.