bluuebunny/crossref_metadata_2025 huggingface dataset:
Aprovechando que Dialnet Métricas se encuentra con IN-RECS. Comparación de indicadores de calidad de revistas
Authors: Calderón-Rehecho Antonio
Published: February 2024

A reflection on numbers and representations that synthesize values that are not evidently shown, with brief notes on percentages and scales. The reflection on the indices takes advantage of the fact that Dialnet Métricas connects with the IN-RECS data.
High entropic coatings FeCrNiTiZrAl and their properties
Authors: Yurov V.M. , Berdibekov A.T. , Belgibekov N.A. , Makhanov K.M.
Published: February 2024

In our proposed empirical model, the anisotropy of the surface energy and the thickness of the surface layer of the high-entropy FeCrNiTiZrAl alloy are calculated. The thickness of the surface layer of this alloy is about 2 nm, which is an order of magnitude greater than the thickness of the surface layer of complex crystals, but is of the same order of magnitude as that of metallic glasses. The hardness and other properties of the high-entropy alloy are the same as for metallic glasses, but are 2-3 times higher than the hardness of stainless steels. The surface energy of the high-entropy FeCrNiTiZrAl alloy is about 2 J/m2, which corresponds to the surface energy of magnesium oxide and other crystals with a high melting point. However, unlike these crystals, the friction coefficients of a high-entropy alloy (~ 0.06) are much lower than that of ordinary steels (~0.8). We have theoretically shown that the friction coefficient is proportionally dependent on the surface energy and inversely proportional to the Gibbs energy, which significantly decreases for a high-entropy alloy, leading to low friction. The high hardness and low coefficient of friction of the high-entropy alloy facilitates the deposition of coatings from them on structural metal products, which contributes to their widespread use.
Household Solid Wastes: Collection and Disposal Methods in Abuja Municipal Area Council (AMAC), Federal Capital Territory, Nigeria
Authors: ADEIZA Abdulrahman M. , Alhaji Nma Bida , SANI Nuhu A. , GODWIN Enid A. , OKOLO Elizabeth C. , ADAMU Andrew M.
Published: February 2024

Objectives: This study was to assess the composition and quantity of solid wastes and their collection and disposal methods in Abuja Municipal Area Council, Federal Capital Territory of Nigeria. Method: A total of 420 well-structured questionnaires (in English language) were administered to consenting participants to obtain information on methods of waste collection and disposal. Secondary data such as waste characteristics and types generated were collected from the Abuja Environmental Protection Board (AEPB) records from January to December 2020. Results: Proportion of solid wastes generated in AMAC were in the order Food and other organic wastes, Papers, water sachets, plastics, metals, glass and textiles, 46.23%, 20.27%, 13.23%, 8.53%, 4.88%, 4.37% and 2.45% respectively. On waste collection, significant 55.71% proportion of the respondents choose government-approved bins, 25.23% use household items while 19.04% employed commercial waste collectors (X2 = 32.5454, df= 12, P= 0.00113). An insignificant 47.4% of the respondents in the study claimed to patronize only government approved dumpsites in disposing off their household wastes, 24.5% at any available open spaces while 24.3% dumped their wastes in their private backyards, 3.80% disposed the wastes in drainages (X2 = 18.8314, df= 18, P= 0.4022). Conclusion: This study successfully achieved the objective for which it was set. This study successfully assessed the composition and quantity, collection and disposal methods of waste generated in AMAC, FCT, Nigeria.
Modern forms of development of resource-saving technologies for minerals mining and processing
Authors: Chukharev Serhii ,   National University of Water and Environmental Engineering, Ukraine
Published: February 2024

We are happy to present the multi-authored monograph “Modern forms of development of resource-saving technologies for minerals mining and pro-cessing”. The monograph discusses actual and promising resource-saving technologies for exploration, development, extraction and processing of ore and non-metallic minerals. Much attention is paid to technical means and technological complex-es that support these processes. The monograp analyzes new approaches to the formation of a resource-saving model of a mining enterprise with due regard to mining safety. In addition, the monograph analyzes principles of organizing resource-saving production, and sources of resource losses in mining. The critical analysis has enabled working out a package of measures aimed at forming a rational model of a resource-saving mining enterprise. The monograph also presents a model of a mining enterprise operating in conditions of resource saving and rational envi-ronmental management. The monograph is intended for a wide range of scientists, specialists involved in analyzing development of mining complexes in regions, as well as master’s and doctoral students of relevant specialties of higher educational institutions.
An overview of the certej mining project and assessment of the environmental implications
Authors:   University of Petroșani, Romania, Faur Florin , Lazăr Maria ,   University of Petroșani, Romania, Apostu Izabela-Maria ,   University of Petroșani, Romania
Published: February 2024

Extractive industry, regardless of how it is performed, always leads to long-term negative effects on the environment. The environmental component that suffers the most as a result of mining activities is land, and with it the entire ecosystem in the area. The most significant destructive effects of open pit mining are produced, both by the quarry and the associated waste deposits and tailings ponds. Removing the overburden and extracting minerals from an ore deposit constitutes a destructive action, with possible repercussions on local or regional habitats and fauna. These effects can be extremely serious if they interact with natural environments of high value. The environmental implications are obvious when mining operations are per-formed using explosives and mechanical equipments through noise, large amounts of dust released in the atmosphere, causing major damage to vegetation and prob-lems related to irreversible alterations of habitats, with consequences in both the project and adjacent areas. Storage of tailings from processing activities (where the mineral material is often associated with dangerous toxic substances) in ponds, may cause functional alterations or destruction of the territory in which they are located. Given the above, based on preexisting data and field observations, the paper aims at making an inventory of the mining and processing operations and the assessment of the possible consequences on the environment that may be generated by the implementation of a large-scale mining project, being taken as a case study the Certej Mining Project (exploitation and recovery of the sulphide epithermal gold-silver ore deposit quartered in the Metaliferi Mountains).
Mineral processing tech-nologies and equipment to separate fine/ultrafine mineral values. a review
Authors:   National Technical Univ. of Athens (NTUA), Greece, Koukoulis Nikolaos
Published: February 2024

In numerous cases of mineral processing, fine to ultrafine mineral particles are inevitably produced during the process of mineral liberation, with the percentage depending on the ore-grade. In case of low-grade ore, efficient liberation demands excessive grinding, as a necessity for efficient separation of fine-grained mineral value from gangue. Due to the peculiar properties of fine particles (physical, chemi-cal), conventional processing methods have limited success or fail to separate the particles, especially at industrial level, because of the concomitant problems. As a result, mineral values of many commodities are lost to the tailings, e.g. phosphate, copper, tungsten, tin, sulfide minerals, iron, etc. With mining operations been shifted to the exploitation of even lower-grade ores, the problem of fine particles separation is expected to deteriorate. The current paper deals with the innovation in equipment and processes devel-oped to meet the problem of fine/ultrafine particles separation. Special emphasis is placed on physicochemical methods, which are mainly based on the improvement or modification of already known ones.
Simulation of coal and gas outbursts in outburst-prone zones of coal seam
Authors:   M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine, Ukraine, Krukovska Viktoriia , Krukovskyi Oleksandr ,   M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine, Ukraine
Published: February 2024

The problem of mining safety in outburst-prone coal seams has not yet been ful-ly studied and resolved, so research related to outbursts continues to be relevant for many coal-mining countries. The purpose of this work is to study the coupled pro-cesses of elastoplastic deformation of a coal seam, methane filtration and desorption, which occur in the outburst-prone zone of the coal seam, and to establish the regu-larities of their joint flow. Numerical simulation methods were used to solve this problem. Simulation of the joint flow of geomechanical and filtration processes in the outburst-prone zone, on its border and beyond it was made. The regularities of changes in geomechanical and filtration parameters in the near-face zone of the coal seam, as well as the regularities of the influence of moisture on the outburst hazard, were established. The developed numerical model allows to identify a safe limit of moisture saturation, at which the nature of geomechanical and filtration processes in the coal seam are quasi-stationary but not dynamic for the specific geological condi-tions. The influence of the unloading chink on gas-dynamic processes was studied. It was shown, when using an unloading chink, a zone completely unloaded from rock pressure is formed near the mine face, in which the occurrence of cracking and destruction processes is excluded. The use of the unloading chink significantly slows down the process of fracturing, which prevents the onset of dynamic phenomena. Key words: coal and gas outburst, coupled processes, elastoplastic deformation, methane filtration, mining safety, moistening, numerical simulation, unloading chink.
Modified geomechanical dependant seismic mornitoring arrangement for predicting rock bursts and failures in sesimically ctive mining blocks at mufulira mine
Authors:   University of Zambia, Lusaka, Zambia, Mutambo Victor , Mukuka Moses ,   University of Zambia, Lusaka, Zambia
Published: February 2024

Mufulira mine is predominantly rich in copper mineralization. Due to increase in mine depth (1,557m), the mine has been experiencing rock failures and rock bursts. This has necessitated changes in mining sequences to suit the present geo-mechanical conditions such as development of de-stressing cross-cuts between 62 and 64 blocks to prevent possible rock bursts and rock falls. This study conducted geotechnical investigations for intact rock mass to determine un-confined compressive strength (UCS), secant and tangent Young’s Modulus (E Sec and E Tan), secant and tangent Poisson's Ratio (ν Sec and ν Tan), Brazilian and tri-axial compres-sive strength tests as well as geological field mapping to understand the Geo-mechanics mechanisms controlling rock burst prone mining blocks at Mufulira mine. Laboratory findings have established high values of tensile strength ranging from 7 MPa to 12.1 MPa, Uniaxial Compressive Strength (UCS) ranging from 126 MPa to 226 MPa and tri-axial compressive strength ranging from 124 MPa to 466 MPa. Damage mapping conducted in the footwall drives, cross-cuts and mining drives excavations indicate that there is a changing stress loading as one move away from the retreating stope face to the east. Based on above results, an early warning monitoring system based on seismic monitoring system at Mufulira mine has been modified to suit the changing nature of geotechnical and geological parameters
Increase of forest plantations productivity in places of illegal amber mining of western Рolissia
Authors:   National University of Water and Environmental Engineering, Ukraine, Fizyk Ihor , Zaiets Vitalii ,   National University of Water and Environmental Engineering, Ukraine, Vasylchuk Oleksandr ,   National University of Water and Environmental Engineering, Ukraine, Kucheruk Myroslava ,   National University of Water and Environmental Engineering, Ukraine
Published: February 2024

The article reveals the problem of illegal amber mining in Ukraine, its negative impact on natural resources and increasing the productivity of forest plantations in both communal and state-owned forests. The main reasons for this phenomenon are considered: relative ease of access to amber deposits, their remoteness from populat-ed areas, and the difficult accessibility of territories due to wetlands and dense affor-estation. The article notes the important role of forests, especially in the Polissia region, in ecosystems and emphasizes their ecological importance. It is noted that forests perform a variety of functions, such as sanitary and hygienic, water protection, recreational, sanative, educational and aesthetic. The importance of forest areas for the preservation of rare species listed in the Red Book of Ukraine is noted. The main focus is on the economic and environmental consequences of illegal amber mining. A large number of persons engaged in unauthorized mining is indi-cated, which leads to serious economic losses for the state and society. Emphasis is also placed on the need for reclamation of disturbed areas as a way to restore natural biotopes and improve the ecological situation. The article calls for effective measures from the state and the public to solve the problem of illegal amber mining, in particular through the implementation of recla-mation projects and increased control over the use of natural resources.
Utilization of overburden quaternary rocks to create soil cushions for structures
Authors:   National University “Yuri Kondratyuk Poltava Polytechnic”, Ukraine, Vynnykov Yuriy , Kharchenko Maksym ,   National University “Yuri Kondratyuk Poltava Polytechnic”, Ukraine, Matyash Oleksandr ,   National University “Yuri Kondratyuk Poltava Polytechnic”, Ukraine, Vovk Maryna ,   National University “Yuri Kondratyuk Poltava Polytechnic”, Ukraine, Rybalko Marina ,   National University “Yuri Kondratyuk Poltava Polytechnic”, Ukraine
Published: February 2024

The article presents data on scientific and technical support of the construction of an embankment with an area of 1.9 million m2 and a thickness of 4-6 m for the facilities of an electrometallurgical plant in the city of Horishni Plavni, Poltava region of Ukraine. The paper presents the results of comprehensive laboratory and field studies of physical and mechanical parameters of compacted overburden of low-cohesion rocks, mainly sands, and their mixtures, and determines the influence of technological factors on the variation of these values. These rocks were formed as a result of the construction of quarries at the Yeristovo and Lavrykivka iron quartzite deposits. Practical possibilities of utilization of overburdened Quaternary low-cohesive rocks and their mixtures as a material for soil cushions of structures have been proved. Optimal methods of compaction of low-cohesive rocks using the vibration mode of rollers have been developed. The influence of technological parameters of compaction on the scatter of random variables of physical and mechanical characteristics of the soil cushion material was also determined. A certain inconsistency of the normative approach to quality control of compaction of overburden of low-cohesive rocks (standard laboratory test of Proctor) during the construction of pillows by modern mechanisms was established. The correct laws of distribution for random values of physical and mechanical properties of compacted low-cohesion overburden of quarries as a material of artificial foundations of structures have been substantiated by the tested methods of mathematical statistics. Keywords: iron quartzite deposit, quarry, overburdened Quaternary low-cohesion rock, compaction, soil cushion, dispersion analysis.
Managing the localization process pollution within the influence of landfills mining production localization of pollution within the limits of influence of mining dumps
Authors:   National University of Water and Environmental Engineering, Ukraine, Zhomyruk Ruslan
Published: February 2024

As a result of the intensive development of science and technology, a large number of various industries, which use the most modern technologies, have emerged. The complexity of technological processes increases the risk of situations that can cause irreparable damage to the environment. Therefore, the primary task of modern times has become the prevention of environmental problems and the reduc-tion of the consequences to which their appearance may lead, or has already led. In particular, one of the important issues that need to be solved as soon as possible is the protection of underground sources from pollution that gets there as a result of active industrial activity of mankind, which significantly affects people's health. Thus, managing the process of localization of soil and groundwater contamina-tion is an important and urgent task. Its solution will increase the reliability of engi-neering systems for the environmentally safe operation of waste storage facilities, which will significantly reduce the morbidity of people within the limits of their influence.
The influence of biogas content on the emission of harmful impurities and the introduction of greenhouse gas emission methodology
Authors:   Zaporizhzhia National University, Ukraine, Kuris Yury , Vidloha Yana ,   Zaporizhzhia National University, Ukraine
Published: February 2024

One of the main goals of biogas energy use, as mentioned above, is to reduce greenhouse gas emissions when replacing fossil fuels. This implies determination of emissions before and after biogas use. The calculation of emissions is based on a systematic approach, when the calculation is made taking into account emissions from fuel extraction, its transportation, fuel consumption for equipment manufactur-ing, etc. At the same time, the life cycle of equipment and capital facilities is consid-ered. In this regard, the development of performance indicators for the ecological use of biofuels becomes relevant from this point of view. The above-mentioned devel-opments are computer programmes with relevant databases. One of the peculiarities of using these programmes, in our opinion, is that, on the one hand, they allow for a specific calculation with maximum detail and assessment of the "integral" result. At the same time, the analysis of the interaction of various factors remains hidden, which can often lead to erroneous conclusions. This is especially true for generalised (strategic) analysis. Therefore, computational studies should be supplemented by analytical studies that allow identifying the main relationships between parameters.
Models and Methods of Operational Management in Mining Production
Authors:   M.S. Polyakov Institute of Geotechnical Me-chanics under the National Academy of Sciences of Ukraine, Dnipro,Ukraine, Krukovskyi Oleksandr , Khorolskyi Andrii ,   Branch for Physics of Mining Processes of the M.S. Poliakov In-stitute of Geotechnical Mechanics the National Academy of Sciences of Ukraine, Dnipro, Ukraine, Ashcheulova Oleksandra ,   Dnipro University of Technology, Dnipro, Ukraine, Medianyk Volodymyr ,   Dnipro University of Technology, Dnipro, Ukraine, Mamaikin Oleksandr ,   Dnipro University of Technology, Dnipro, Ukraine
Published: February 2024

The goal of the work is to develop and verify a new methodological approach for the comprehensive assessment of the technological potential of coal mining en-terprises. To address this task, a comprehensive approach has been applied, based on the implementation of the neoclassical production function in the form of the Solow model to analyze the state of the coal mining industry. It also involves evaluating the economic reliability coefficient to develop recommendations for improving techno-economic indicators. The efficiency of enterprise functioning can be assessed by the ratio of input (capital) to output (production level) flows of resources, with a significant role played by the innovative component. Analyzing the relationships between resource flows allows selecting optimal production development scenarios and forming prin-ciples for designing production at a certain stage of development. For the first time in the paper, a model for evaluating parameters of mining pro-duction is proposed, demonstrating the relationship between production functions and resources. Using the developed model, it is possible to track the efficiency of the use of production resources over time, determine production volumes, calculate the main parameters of coal mines' functioning, and investigate the resources contrib-uting to increased productivity. Regularities in the formation of the efficiency level of coal mining enterprises are established for the first time, and approaches to production design considering the area of rational exploitation are developed. Methods of combined management of processes of simple and extended repro-duction of technological schemes of mines are proposed by regulating the resource potential of mines. The procedure of gradient reduction of the limit on technological resources and adjusting the functional value to approach results in mine operation to a possible breakeven threshold is a widely recognized form of sensitivity analysis of modeling results. The comprehensive assessment of the technological scheme of the mine in four directions significantly increases the objectivity level of the final result compared to evaluating it with only one indicator.
Development of methods for forecasting the duration of recovery groundwat
Authors:   Independed researcher, Ukraine, Filatieva Elvira , Oleinichenko Oleksandr ,   Volodymyr Dahl East Ukrainian National University,Ukraine, Filatiev Mikhail ,   Independed researcher, Ukraine, Maksyuk Inna ,   Independed researcher, Ukraine, Fursova Olga ,   Independed researcher, Ukraine
Published: February 2024

The change in the natural balance of surface, ground and underground waters is one of the urgent environmental problems of coal-mining regions, which is associated with negative phenomena and processes that accompany the exploitation and liquidation of mines. Management of groundwater inflows at various stages of the post-exploitation existence of mines that are being liquidated is difficult due to the lack of study of water migration in the disturbed massif. The purpose of the work is to develop methods of forecasting the time of restoration of the natural surface of depressed groundwater wells in the regions of mine closure. The hydrofiltration scheme of coal mine flooding was considered, and its connection with the shift of artificial rocks and the earth's surface during cleaning operations was carried out. A hydrogeological forecast of the ecological consequences of the exploitation and closure of coal mines has been made. Based on the monitoring of the water surface level in the vertical shafts of mines that are being liquidated, methods have been developed for determining the duration of restoration of the natural level of groundwater for a separate mine and the region as a whole.
Justification of the choice of pneumatic structures for the formation of ground storage facilities for the gas hydrates storage
Authors:   National UniUniversity «Yuri Kondratuk Poltava Polytechnic», Ukraine, Pedchenko Larysa , Pedchenko Mykhailo ,   National UniUniversity «Yuri Kondratuk Poltava Polytechnic», Ukraine, Pedchenko Nazar ,   National UniUniversity «Yuri Kondratuk Poltava Polytechnic», Ukraine
Published: February 2024

Natural gas can exist not only in gaseous, but also in liquefied and solid aggregate states. Natural gas in a solid state - gas hydrates of natural gas. It is in the solid state - in the form of gas hydrates - that natural gas can be stored in improved casing gas-resistant structures. In order to improve the pneumatic structures and the method of operation of these structures, the features of such storage are substantiated. The design and operation technology of the ground storage facility for the accumulation and storage of natural gas as part of the gas hydrate includes the main and some auxiliary elements. Compulsory components of a pneumatic structure include a fence, pumping equipment and a foundation. However, the main element of the ground pneumatic structure is a frameless gas-resistant shelter in the form of at least two dome-shaped gas-tight soft shells on a thermally insulated base. A necessary condition for the storage of gas hydrates of natural gas is the creation of thermobaric conditions higher than the dissociation parameters of gas hydrates of this composition. For increase the thermal resistance of the pneumatic coating, it is suggested to fill the space between the shells with a porous substance with low thermal conductivity. Liquid compression foam is offered as a thermal insulation material. The use of liquid foams will increase the thermal resistance of soft shells and reduce the heat exchange between gas hydrates and the air outside. The use of these hydrate storages will significantly increase the efficiency and competitiveness of natural gas storage technology in the form of gas hydrates.
Construction and design of buildings and structures under martial law. new challenges and ways to address them
Authors:   Dnipro University of Technology, Ukraine, Shashenko, Oleksandr , Shapoval Volodymyr ,   Dnipro University of Technology, Ukraine, Skobenko Oleksandr ,   Dnipro University of Technology, Ukraine, Morkliany Bohdan ,   Lviv Polytechnic National University, Ukraine, Barsukova Sofiia ,   Dnipro University of Technology, Ukraine
Published: February 2024

This paper is a result of the detailed analysis, carried out by a group of scientists at Dnipro University of Technology, of the circumstances and situation in the field structure facilities, which emerged after the full-scale invasion of Russia into Ukraine. It formulates the new requirements that we devised for the construction of new, and reconstruction of existing buildings and structures, as well as for design and construction documentation. The material presented in the current paper can be conditionally divided into 5 parts: 1. Legal and organizational foundations of the civil protection system. 2. Patterns of damage to civilian population in the course of military operations of various types and under various conditions. 3. Tendencies and patterns of destruction and damage to buildings and structures of various purposes and with various structural features during modern hostilities. 4. Modern principles, methods, and structures designed to protect civilian popu-lation in different countries. 5. Conclusions and recommendations regarding the calculation and design of cit-ies, towns, buildings, and structures under conditions of the danger of conducting military operations.
Stress state modelling for composite tractive element with breakages of cable reinforcement and change in mechanical properties of elastomer shell
Authors:   Dniprovsk State Technical University, Kamianske, Ukraine, Belmas Ivan , Kolosov Dmytro ,   Dnipro University of Technology,  Ukraine, Onyshchenko Serhii ,   Dnipro University of Technology,  Ukraine, Bilous Olena ,   Dniprovsk State Technical University, Kamianske, Ukraine, Tantsura Hanna ,   Dniprovsk State Technical University, Kamianske, Ukraine
Published: February 2024

The purpose of research is determination of a dependency of a stress state for composite elastomer-cable tractive element with a broken structure on a nonlinear dependency of shear modulus on deformations in the elastomeric shell. Research methodology is in analytical solution of a model of a composite tractive element with disturbed structure and a deformation-dependent shear modulus of an elastomeric shell. Results are in constructing an algorithm for determining a stress state of a composite tractive element with broken structure and a deformation-dependent shear modulus. Scientific novelty is in determining a character of de-pendency for a stress state of a composite tractive element on a nonlinear dependen-cy of shear modulus on deformations. Practical application of research is in a possi-bility to determine the dependency of a stress state of a composite elastomer-cable tractive element on a nonlinear shear modulus allows considering the effect of this phenomenon on the tractive element strength and ensures an increase of its operation-al safety.
Upaya Meningkatkan Minat Siswa SD Terhadap Extra Kurikuler Musik Melalui Implementasi Model Learning by Doing : Penelitian Tindakan Kelas
Authors: Agung Sugito Tomy , Putra Mahendra Marda , Elvira Subianto Izzati , Asna Lubbis Arya
Published: February 2024

The initial interest of elementary school students towards extracurricular music shows a low percentage, which is 50.29%. Therefore, teachers need to make efforts to increase students' interest in that extracurricular music. The learning by doing method is applied to students to enhance their interest in extracurricular music. The methods used are qualitative descriptive and quantitative descriptive (mixing method). Data collection is conducted through questionnaires, observations, interviews, and documentation. The research results indicate that the learning by doing model can increase students' interest in extracurricular music by 90.73% and can foster student interest in the learning process as well as in music activities. In this effort, support from the school and teachers' facilities and infrastructure is needed, including increasing music activities (practice) in the process of learning music arts and requiring students to actively participate in the learning process such as asking questions, giving opinions, and engaging in music activities in the classroom.
ГЕОГРАФІЧНА ДИВЕРСИФІКАЦІЯ ІМПОРТУ НАФТОПРОДУКТІВ ЯК ЧИННИК ЕКОНОМІЧНОЇ ТА МИТНОЇ БЕЗПЕКИ УКРАЇНИ
Authors: ПРОКОПЕНКО Валерія , ЗУБРИЦЬКИЙ Артур
Published: February 2024

У статті окреслено проблеми нафтопереробного сектору України, що призвели до критичної залежності від імпорту нафтопродуктів на початок повномасштабної війни. Охарактеризовано безпрецедентні заходи з боку учасників ринку та держави, які забезпечили кардинальне переформатування структури імпорту нафтопродуктів після втрати основних джерел постачання. Проаналізовано зміни географічної структури імпорту бензину та дизельного палива з точки зору позитивного їх впливу на економічну та митну безпеку України. Запропоновано можливі шляхи подальшого забезпечення стійкості системи постачання імпортного пального в умовах високих безпекових ризиків.
Analisis Yuridis Terhadap Pengalihan Aset Ruko Atas Pembina Yayasan Medica Dengan Cara Jual Beli ( Studi Putusan Nomor : 21/Pid.B/2021/Pn.Bnj)
Authors: Jitro Sembiring Ronan , Rizki
Published: February 2024

In Indonesia, foundations are regulated by law number 28 of 2004. In this regulation, it is clearly stated that foundations have their own assets and rights, which are not owned by their management. Prior to the existence of the law on foundations, the existence of foundation assets often caused controversy because sometimes foundations, which should aim for the benefit of society, were misused to commit illegal acts. In some cases, land and assets of foundations are even traded illegally, which of course violates the law and the property rights of the foundations itself. The research conducted in this study is normative research, where law is the basic reference in research. In terms of the problem in this study, the transferred foundation assets, namely a shophouse located on Jalan Veteran, Binjai District, Binjai City. The assets belong to the Medica Foundation but are in the name of Dr.Reinhard Silalahi, who in this case is the Trustee of the Foundation and the Defendant in the case in Decision No. 21/Pid.B/2021/Pn.Bnj. Based on the provisions of the Article 28 In the law on Foundation, Trustee are organs of the Foundation which have authority that is not granted to management or the supervisors by this law or the articles of association. In the verdict of the panel of judges, they argued that where was no act of fraud commited by the defendant, such as using a false name, false dignity, deception, and a series of lies. However, this act is considered as an  unlawful act in the civil realm.
Cazadores-recolectores del Holoceno medio en las sierras de Tandilia oriental (Argentina)
Authors: Juan Pablo Donadei Corada
Published: February 2024

Cazadores-recolectores del Holoceno medio en las sierras de Tandilia oriental (Argentina) is the result of doctoral research on the hunter-gatherer groups that inhabited the eastern Tandilia mountain range (Argentina) during the mid-Holocene period, generating new knowledge on aspects related to lithic technology, raw material management and mobility strategies. This study analysed lithic tools recovered from several archaeological sites excavated in caves and rock shelters, specifically between the present-day localities of Balcarce and Mar del Plata.

The main results show that hunter-gatherer groups of this period combined two mobility strategies. On the one hand, the mountain range occupations reflect a high logistical mobility aimed mainly at hunting guanacos and pampas deer, where caves and rock shelters were used as temporary shelters while away from residential camps. On the other hand, the integration of these results within the framework of the Pampa Húmeda sub-region suggests that the residential groups of this period were able to carry out annual or seasonal movements within a regional radius, with mobility circuits that included different ecosystems (coast, grassland plain and mountain range) and took advantage of a wide variety of terrestrial and marine resources available at different times of the year.
Gandharan Art and the Classical World: A Short Introduction
Authors: Peter Stewart
Published: February 2024

In the early centuries AD, the small region of Gandhara (centred on what is now northern Pakistan) produced an extraordinary tradition of Buddhist art which eventually had an immense influence across Asia. Mainly produced to adorn monasteries and shrines, Gandharan sculptures celebrate the Buddha himself, the stories of his life and the many sacred characters of the Buddhist cosmos. Since this imagery was rediscovered in the nineteenth century, one of its most fascinating and puzzling aspects is the extent to which it draws on the conventions of Greek and Roman art, which originated thousands of kilometres to the west.

Inspired by the Gandhara Connections project at Oxford University’s Classical Art Research Centre, this book offers an introduction to Gandharan art and the mystery of its relationship with the Graeco-Roman world of the Mediterranean. It presents an accessible explanation of the ancient and modern contexts of Gandharan art, the state of scholarship on the subject, and guidance for further, in-depth study.
Enhancing Pronunciation Learning through High Variability Phonetic Training: A Meta-analysis
Authors: Saleh Mahdi Hassan , Mohsen Mohammed Ali
Published: February 2024

High-Variability Phonetic Training (HVPT) has demonstrated effectiveness in second language (L2) acquisition. This study utilizes a meta-analysis to explore the influence of high variability on learning L2 pronunciation and identifies the factors that moderate this impact. The studies were collected using a keyword search in the SCOPUS database. In total, our meta-analysis incorporated 18 primary studies that presented results obtained from experimental and control group designs, encompassing a total of 22 effect sizes. The results of our meta-analysis revealed that the overall effect size of HVPT on L2 pronunciation was medium (g = 0.77). Specifically, the effect size was large for consonant sounds and lexical tones, particularly pronounced when utilized by advanced learners. For beginners, the effect size was medium. The context in which the training was conducted also played a role, with a medium effect size observed when sentences were used. Additionally, the number of talkers involved in the study influenced the effect size, with a medium effect size found when 5 to 8 talkers were included. In other cases, the reported effect sizes were either small or non-significant.
Investigating the EFL Learners’ Visual Word Recognition: Words’ Frequency, Length, Regularity and Superiority Effects in Comparison
Authors: Neshatian Zahra , Khaghaninejad Mohammad Saber
Published: February 2024

This study scrutinized the effects of words’ superiority, regularity, frequency and length on the intermediate and advanced EFL learner's visual word recognition. Moreover, it attempted to check whether each of these parameters could be statistically a significant predictor on recognition tasks. Accordingly, 118 intermediate and 127 advanced adult EFL learners were selected randomly from English Language Institutes based on their performance on the McMillan Placement Test (MPT). The needed data was collected through a developed Visual Word Recognition Test (WORT) and the Peabody Picture Vocabulary Test (PPVT). The findings indicated that all the mentioned factors significantly affected both the intermediate and the advanced EFL learners’ overall word recognition by varying degrees (words’ frequency, length, superiority and regularity, respectively), however, the advanced learners’ recognition was generally faster on both recognition tests. Moreover, words' regularity was found to play a more effective role for the intermediates than the advanced learners on recognition tasks. Furthermore, words’ frequency, regularity and length were found to be proper predictors on comprehension tasks.
Translingual Oral Corrective Feedback in an Arabic as a Heritage Language Classroom in the USA
Authors: Uddin Md Nesar
Published: February 2024

Over the years, a sweeping interest in translanguaging practices and corrective feedback (CF) in parallel has received momentum in instructed SLA research. Whereas previous CF studies focused on CF interactions and factors affecting L2 learning, this study examined how translanguaging intertwined with CF in Arabic as a Heritage Language learning in a sixth-grade class at a K-12 school in the USA. The research data resulted from twenty hours of class observations, interviews with the class teacher, and ten randomly selected participating students. The data were coded based on Ranta and Lyster’s (2007) CF types and uptake moves taxonomy. The results showed that the teacher's translanguaging practices helped learners engage in pedagogical tasks and CF interactions, leading to effective Arabic language learning. The teacher provided five CF types—explicit correction, recast, metalinguistic feedback, elicitation, and multiple feedback. Metalinguistic feedback, recast, and multiple feedback accounted for 72% of CF, where recasts received the highest uptake and repair rates (95% and 87%, respectively), and the other types of CF also led to high uptake and repair moves. This study suggests that CF can be effective when teachers employ translanguaging during CF interactions, positively address learner errors, and motivate learners’ in-class participation.
Innovative Approaches to Managing Zakat within the Context of Sustainable Development and Societal Well-Being in Indonesia
Authors: Muda Endar , Syafrinaldi  , Thalib Abd
Published: February 2024

The objective of this research is to investigate and assess innovative approaches to managing Zakat within the context of sustainable development and societal well-being in Indonesia. Given the multifaceted challenges confronting Indonesian society, Zakat holds tremendous potential as a tool for fostering sustainable development and enhancing social welfare. This research employs a literature review to examine pioneering practices in Zakat management within Indonesia. Information gathered from diverse sources, including research papers, scholarly publications, and case studies, will be utilized to analyze various successful models of Zakat management implemented in the country. The findings of this study aim to shed light on effective innovations in Zakat management that contribute to achieving sustainable development and augmenting social welfare in Indonesia. Moreover, the research will identify critical factors that facilitate the successful implementation of innovative Zakat management strategies, while also evaluating the resulting social and economic ramifications. It is anticipated that the outcomes of this study will furnish pertinent policy recommendations for the government, Zakat management institutions, and the general populace, aimed at enhancing the efficacy of Zakat management for sustainable development and the advancement of social welfare in Indonesia. Furthermore, this research endeavor seeks to foster a deeper comprehension of Zakat’s potential as a substantial funding source to fortify key sectors in propelling inclusive economic growth and fostering social equity within Indonesia.
Crowdsourcing: A Systematic Literature Review and Future Research Agenda
Authors: J. Garrigos-Simon Fernando , Narangajavana-Kaosiri Yeamduan
Published: February 2024

Crowdsourcing is very relevant in the literature, because of its impact on the performance of organisations in the new virtual environment. Its importance is crucial in a world where e-commerce, new technologies and artificial intelligence are becoming more and more prevalent, and where organizations require the generation of new data and ideas that increasingly come from outside the organisations. This paper reviews the literature on crowdsourcing, analysing the main trends in the area. To do so, the paper uses different bibliometric techniques, as well as an in-depth literature review. The results indicate that the study of crowdsourcing has moved from a conceptual review to increasingly practical applications. Management, Computer science and secondy Geography and Psychology remain the main areas of research in the topic. Diverse sub-areas linked to "task analysis", "citizen science", "social media", and "machine learning" are preponderant. The paper highlights the managerial side of Crowdsourcing, with innovations related to the evolution of technological aplications related to the new ubiquitous web, and the personal aspects of the participants. The work helps to observe research trends and the various uses, potentials and key elements of their implementation, which is important for researchers and practitioners.
Stakeholder Perception of Extracurricular Activities at the Tertiary Level in Vietnam
Authors: Thi Ngoc Lien Tran
Published: February 2024

The statement of NCES on its website that "extracurricular activities (ECAs) provide a channel for reinforcing the lessons learned in the classroom, offering students the opportunity to apply academic skills in a real-world context, and are thus considered part of a well-rounded education" has further consolidated the significance of this component in a school's curriculum development. No matter how important these activities are, they have seemingly not received due attention and investment from universities in Vietnam. This study was conducted at four universities in Vietnam to examine the perceptions of three stakeholders, namely administrators, teachers, and students about ECAs. Survey questionnaires and informal interviews were used for data collection. Descriptive statistics was used to analyse quantitative data while qualitative data were approached by deductive content analysis. Major findings reveal both matches and mismatches in the perceptions of the participants, and there was an association between the encouragement of extracurricular activities and students' engagement as well as improvement in their academic performance; however, an unwelcome fact remained regarding students' participation rate, teachers’ belief, and administrators' engagement.
Revista Agrária Acadêmica – métricas do periódico entre os anos de 2018 e 2020
Authors:   Revista Agraria Academica, Honorato Jailson
Published: February 2024

The Agrarian Academic Journal®, founded in 2018, is an open access bimonthly international journal aimed at publishing original and unpublished technical-scientific works in the areas of Sustainable Development, Agronomy, Veterinary Medicine, Animal Science, Food Science and Technology, Forestry Engineering, Environmental Engineering, Fishing Engineering, Aquaculture and related areas. The main objective of this work is to describe the metrics obtained by the journal between 2018 and 2020. During this period, 265 peer-reviewed articles were published, which were verified regarding the thematic area, origin and title of the authors, as well as the language and the type of publication (Review Articles, Scientific Articles, Continuing Education, Case Reports, Previous Note and Communication). In the end, it was also possible to list highlighted authors and institutions, in addition to planning strategies for the constant improvement of the journal.
The Role of the Currently Applicable Water Treaties in Conflict Resolution
Authors: Szolga Réka
Published: February 2024

The Middle East and South Asia are hydropolitical hotspots, where the competition for freshwater has dramatically increased and the amount of available resources decreased, due to several reasons. This paper offers an analysis about two water conflicts, in which relevant paragraphs of the international water law would only provide a temporary water conflict resolution, because present water treaties must be urgently updated to enhance hydropolitical resilience. Overexploitation of the water resources, development of the critical region’s hydroecological conditions, hydrohegemons’ unilateral decisions can be handled with an effective international water governance and waterpolitical reforms.
Effect of Memory Specificity Training on Posttraumatic Stress Disorder of Patients with Cancer
Authors:   Department of Psychology, Faculty of Psychology and Educational Sciences, Shahrood Branch, Islamic Azad University, Shahrood, Iran., Lavaei Pouya , Moradi Alireza ,   Department of Psychology, Institute for Cognitive Science Studies, Kharazmi University, Tehran, Iran., Taher Mahbobe ,   Department of Psychology, Faculty of Psychology and Educational Sciences, Shahrood Branch, Islamic Azad University, Shahrood, Iran., Mikaeili Niloofar ,   Department of Psychology, Faculty of Psychology and Educational Sciences, University of Mohaghegh Ardabili, Ardabil, Iran.
Published: February 2024

Background and Objectives: Diagnosis with cancer is a traumatic event for the affected person and challenges them in various individual, social, occupational and interpersonal fields. The present study aims to assess the effect of Memory Specificity Training (MEST) on Posttraumatic Stress Disorder (PTSD) of patients with cancer. Methods: This is a quasi-experiment study with a pre-test/post-test/follow-up design. The study population consists of all patients with cancer referred to hospitals and medical centers in Tehran, Iran. Of these, 60 patients were selected by a convenience sampling method. They were randomly divided into intervention (n=30) and control (n=30) groups. The intervention group received MEST at 6 sessions, each for 90 minutes. Patients’ demographic data were recorded using a semi-structured interview. They completed the PTSD checklist for DSM-5 (PCL-5). Collected data were analyzed using the mixed analysis of variance in SPSS v. 24 software. Results: The main effect of group (F=58.56, P<0.01, η2=0.502) and time (F=579.89, P<0.01, η2=0.912) on total PCL-5 score were significant in the intervention group compared to the control group. The differences from the pretest phase to the posttest and follow-up phases were significant. Conclusion: The MEST is effective in reducing PTSD symptoms of patients with cancer.Keywords: Posttraumatic stress, Cancer, Memory specificity training.