bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigating the Sway of Marine Brown Seaweed Gel as Natural Polymer in Properties of Concrete
Authors: Murugappan V. , Muthadhi A.
Published: October 2024

In the present study, the effects of the fresh properties as slump, consistency and setting time and hardened concrete's characteristics such as compressive, split tensile and flexural strength for various ages, the brown seaweed (Sargassum wightii) gel was added to cement throughout differing proportions (1, 2, 3, 4 and 5%) by the mass of concrete. Durability and thermal tests such as water absorption, sorptivity, RCPT, acid attack and thermal conductivity also determined at various ages. Micro structural properties of seaweed gel were found out by SEM, FTIR and XRD analysis. Test results show that seaweed gel act as retarding admixture in cement up to 5% of addition. For instance, 5% alginate collections as a percentage of concrete mass showed a comparable compressive strength of about 42MPa. The use of seaweed gel improved the thermal characteristics of concrete by reducing its thermal conductivity roughly 50% for a 5% addition. The seaweed gels up to 5% addition in concrete will significantly improve the fresh-state properties of concrete without affecting its hardened properties. The future is completely dependent on eco-friendly materials; hence the use of natural organic additives to improve the strength and durability of cement concrete would be the better option for sustainability.
Performance Characteristics of a Compression Ignition (CI) Engine Using an Environmentally Friendly Waste Plastic Fuel
Authors: Shelat Samarth Jayeshbhai , Patel Sanjay Maganlal
Published: October 2024

Due to growing demands and depleting reserves of petroleum-based fuel, there is a necessity to find an alternative fuel for IC engines. Also, environmental concerns and globally faced problems like lots of garbage generated through plastics is a major issue in India. There is a significant disparity between plastic production and waste plastic generation. Therefore, the need for alternative fuels derived from municipal plastic waste has emerged to enhance the performance of IC engines, decrease emissions, and address other environmental concerns in line with the “Swachh Bharat Mission of India”. In this study, the alternative fuel was produced from a municipal mix of plastic waste by pyrolysis process. The experiments were carried out with a constant speed of 1500 rpm at different load conditions and fueled with standard diesel, waste plastic fuel and other blends to investigate IC engine performance and combustion and emissions in terms of brake thermal efficiency, brake power, brake specific fuel consumption, cylinder pressure, net heat release, mean gas temperature, rate of pressure rise, andbrake specific CO2, NOx, CO and HC emissions parameters were investigated and it is compared with standard diesel. The overall result shows that WPO20D80 and WPO30D70 exhibit the peak performance (torque, BP, BTE and BSFC) and lowest emissions (HC, CO, NOx) at all load conditions. Moreover, according to all the performance results, the lowest BSFC with maximum brake thermal efficiency and variations was 24.01% and 0.346 Kg/kWh for the WPO30D70 blend at part load condition. The minimum brake-specific NOx produced by the diesel blend at peak load conditions (WPO20D80) is 138.66 ppm, which is higher than other blends. This phenomenon may be attributed to an elevated proportion of pre-combustion and an extended ignition duration, resulting in a high cylinder temperature and an enhanced rate of heat release. This analysis contributes to a deeper understanding of the environmental implications associated with different fuel blends and load conditions. Notably, the blends ranging from 10% to 50% showed good tendencies to be utilized with diesel engines and consistently exhibit favourable brakespecific emission profiles, suggesting its potential as an environmentally friendly alternative fuel.
A Comparative Study of Measurement Systems Using Machine Learning Techniques for Tool Fault Di-agnosis During Metal Removal in the Milling Process
Authors: Ingale Muralidhar , Bhortake Rupesh , Waghulde Kishor
Published: October 2024

Despite significant advancements in both measurement systems and machine learning techniques, the integration of these technologies for real-time tool fault diagnosis in milling processes remains under developed. Existing studies tend to focus on a comprehensive comparative analysis that bridges these two areas machine learning algorithms or the application of specific measurement sys-tems. There is also a gap in evaluating the cost-effectiveness and practicality of different measurement systems when integrated with machine learning models for industrial applications. This study addresses these gaps by conducting a detailed comparative analysis of multiple measurement sys-tems and their performance with machine learning techniques in a real-world milling context, aim-ing to provide practical recommendations for industry adoption. Using both traditional and Artificial Intelligence (AI) to define and exploit sensory systems in the milling process, as well as various (direct and indirect) monitoring approaches, are summarised in this study. Machine learning tech-niques SVM, KNN, DT performs better and provide higher accuracy and in feature extraction clas-sification techniques statistical features, wavelet transform with the Holder Exponent (HE) having higher accuracy for diagnosing the tool faults.
A Comprehensive Analysis of the Synthesis, Properties and Uses of Nanofluid
Authors: Raut Prachi , Maniyar Kamalkishor , Kakade Suwarna , Rupanar Shobha , Bhalake Suhas , Mali Chaitalee , Deshmukh Swapnil , Biradar Ramdas
Published: October 2024

Nanofluid, which is a suspension of nanoparticles, has the potential to be a heat transfer fluid with a wide range of applications due to its superior thermal conductivity and rheological properties. This article summarises both previous and current research on nanofluid heat transfer improvement. A survey was done on the most recent advancements in readiness and stability improvement. The discussion included thermophysical properties, heat transfer properties of nanofluids and the impact of surfactant, temperature, particle size, shape and other variables on thermal conductivity. The current study proposes potential possibilities through the utilisation of nanofluids. A few challenges and roadblocks were also discussed. The challenges and opportunities for further research were finally covered.
Dynamic Performance Evaluation of a Five-Phases Induction Motor System controlled using Fuzzy Logic Director
Authors: Suryawanshi Akshay Mohan , Deshmukh Pritam Dattatraya , Lohate Ajay Kondibhau , Yadav Rahul Shivaji , Ghule Avinash Bhanudasrao , Chaugule Prashant Raosaheb
Published: October 2024

The five-phase induction motor drive offers distinct benefits that enhance the motor's torque production capabilities. The proposed fuzzy logic controller is well suited for high-performance five-phase induction motor drives. This paper is discussed about a speed control strategy for a five-phase induction motor drive system using a Fuzzy Logic Controller (FLC). This controller adjusts system parameters through a rule-based fuzzy logic system, mimicking human reasoning for process control. The speed control algorithm employs indirect vector control.
The influence of grain size on hydrogen embrittlement of a multicomponent (FeCrNiMnCo)99N1 alloy
Authors: Gurtova Darya Yu. , Panchenko Marina Yu. , Melnikov Evgeny V. , Astapov Denis O. , Astafurova Elena G.
Published: October 2024

The problem of hydrogen embrittlement remains relevant in many areas, so the FeCrNiMnCo alloy (Cantor alloy) generates increased interest among researchers as one of the materials least exposed to the negative effect of hydrogen. Nevertheless, the issue of the influence of microstructure parameters on hydrogen embrittlement of the Cantor alloy and multicomponent alloys of the FeCrNiMnCo system in general remains understudied. This work studies the influence of grain size on the susceptibility of a nitrogen-doped high-entropy Cantor alloy to hydrogen embrittlement. For this purpose, states with different grain sizes (43±21, 120±57, and 221±97μm) were formed in the (FeCrNiMnCo)99N1 alloy, using thermomechanical treatments. It is experimentally found that grain refinement leads to an increase in the strength properties of the alloy under study and promotes an increase in the resistance to the hydrogen embrittlement: in samples with the smallest grain size, the hydrogen-induced decrease in ductility is less than in samples with the largest one. A decrease in grain size causes as well a decrease in the length of the brittle zone detected on the fracture surfaces of samples after tension. This is caused by a decrease in hydrogen diffusion during the hydrogen-charging process and a decrease in the transport of hydrogen atoms with mobile dislocations during plastic deformation due to a decrease in grain size.
Accuracy of the geometric shape of the hole in the longitudinal section during honing
Authors: Denisenko Aleksandr F. , Grishin Roman G. , Antipova Evgeniya D.
Published: October 2024

The wide application of honing as a finishing treatment of internal cylindrical surfaces for cylinder-piston systems, used in some structures, is caused by high accuracy measured in tenths of a micrometer, and high productivity of the process. The most important indicator of reliable operation of cylinder-piston systems are high requirements for the geometric accuracy of holes. Due to the lack of sufficient theoretical justification for the selection of honing parameters ensuring the accuracy of the geometric shape of the hole in the longitudinal section, the authors proposed a model for the formation of errors in the geometric shape of the hole. The model is built on the kinematic characteristics of the process including the ratio of the honing stone dimensions, the length of the hole, the stroke of the honing head, the ratio of the speeds of translational and rotational movements, and the force action in the processing zone, which changed due to the presence of an overrun of the honing stone. To obtain analytical dependencies ensuring the minimisation of form deviations, the conditions for stock removal for the points of the machined surface were considered, the value of which was taken proportional to the path of movement, and the pressure value. For this purpose, graphs of the distribution functions of displacements and pressure changes were constructed depending on the coordinate of the point location on the generating line of the hole being machined. Using the obtained analytical dependencies, the potential occurrence of a shape error in the form of a saddle shape was found, the dominant factor influencing the value of which is the value of the honing stone overrun. At the same time, it was identified that the ratio of the speeds of translational and rotational movements has an insignificant effect on the violation of the form in the longitudinal section.
Microstructure, crystallographic texture and mechanical properties of the Zn–1%Mg–1%Fe alloy subjected to severe plastic deformation
Authors: Sitdikov Vil D. , Khafizova Elvira D. , Polenok Milena V.
Published: October 2024

The paper covers the production, analysis of the microstructure, crystallographic texture and deformation mechanisms of the ultrafine-grained (UFG) Zn–1%Mg–1%Fe zinc alloy demonstrating unique physical and mechanical properties compared to its coarse-crystalline analogs. The zinc alloy with improved mechanical properties was developed in two stages. At the first stage, based on the analysis of literature data, an alloy with the following chemical composition was cast: Zn–1%Mg–1%Fe. Then, the alloy was subjected to high-pressure torsion (HPT) to improve mechanical properties due to grain structure refinement and implementation of dynamic strain aging. The conducted mechanical tensile tests of the samples and assessment of the alloy hardness showed that HPT treatment leads to an increase in its tensile strength to 415MPa, an increase in hardness to 144HV, and an increase in ductility to 82%. The obtained mechanical characteristics demonstrate the suitability of using the developed alloy in medicine as some implants (stents) requiring high applied loads. To explain the reasons for the improvement of the mechanical properties of this alloy, the authors carried out comprehensive tests using microscopy and X-ray diffraction analysis. The microstructure analysis showed that during the formation of the ultrafine-grained structure, a phase transition is implemented according to the following scheme: Zneutectic + Mg2Zn11eutectic + FeZn13 → Znphase + Mg2Zn11phase + MgZn2particles + Znparticles. It was found that as a result of high pressure torsion in the main phases (Zn, Mg2Zn11), the grain structure is refined, the density of introduced defects increases, and a developed crystallographic texture consisting of basic, pyramidal, prismatic, and twin texture components is formed. The study showed that the resistance of pyramidal, prismatic and twin texture components at the initial stages of high-pressure torsion determines the level and anisotropy of the strength properties of this alloy. The relationship between the discovered structural features of the produced alloy and its unique mechanical properties is discussed.
Pulse diffusion welding of female joints
Authors: Strizhakov Evgeny L. , Nescoromniy Stanislav V. , Lyudmirsky Yury G. , Mordovtsev Nikolay A.
Published: October 2024

Special feature of operation of electrovacuum tubes, in particular the cathode assembly, is constant heating due to bombardment of its surface with electrons. Stable characteristics and durability of the cathode assembly depend on high-quality connection (welding) of the core surfaces with the emitter over the entire area of ​​the overlapped conjugation. The use of diffusion welding for joining a cathode assembly made of dissimilar materials is not possible due to the occurrence of poor welding fusion due to the presence of gaps in the ring sectors of the equipment, and, consequently, a decrease in the service life of the cathode assembly. The authors proposed to implement the process by combining magnetic pulse welding with diffusion welding. The originality of the work is the possibility of remote action on the joint through a dielectric quartz cup, which is a part of the technological vacuum chamber. The inductor system is outside the quartz cup, which allows heating the assembled unit without heating the tool – an inductor made of dissimilar materials – to a temperature of 700 ° C and higher. The authors determined the main parameters of the process of pulse diffusion welding in vacuum: pressure in the working chamber is В=0.66·10−2Pa (5·10−5mmHg); preheating temperature is T=700–1250°C; magnetic field pulse energy is W=5÷17kJ; operating frequency of current pulse discharge is fd=5–15kHz; magnetic pressure is Pm∙107N/m2. In this way, cathode assemblies of a wide range of metal pair combinations with a base diameter of d=20mm and a sample length of L=40mm were produced. The proposed technology has been successfully implemented and introduced at Tantal (Open Joint Stock company). The economic effect consists in reducing labor intensity and obtaining joints of stable quality.
The development of Soviet penal prohibitions during the Great Patriotic war
Authors: Skorobogatov Andrey V. , Rybushkin Nikolay N.
Published: October 2024

The paper covers the study of criminal law regulation during the Great Patriotic War in the historical and legal context. The purpose of the work is to form scientifically substantiated knowledge about the features of the development of the system of penal prohibitions in Soviet law during the Great Patriotic War. Based on the constructivist paradigm, the authors study the process of transformation of penal prohibitions in wartime, highlighting the role of not only legislative but also executive and judicial bodies in this process. The conducted study allowed concluding that the transformation of criminal law regulation equally affected the general and special parts of this branch of law. However, the changes were caused both by the needs of martial law and by the transformation of criminal law shortly before the war, which was associated with the proclaimed by the Constitution of the USSR of 1936 transition to regulating this branch of law not at the republican, but at the all-Union level. In the legal doctrine and the general part of criminal law, the changes concerned primarily the criminalization of civil and labor relations, the expansion of the limits of criminal law regulation, in particular the emergence of new objects of criminal defense, and the clarification of the list of special subjects of criminal law for whom increased measures of criminal liability were established. With regard to the special part of criminal law, the changes were more specific in nature due to the need to mobilize all material and human resources to defeat the enemy and ensure law and order and public safety.
Evaluation of Students’ Skills in Software Project
Authors: Cihan Pinar , Kalipsiz Oya
Published: October 2024

Software project probably is a sector that has witnessed the highest rate of project failure in the world. The industry claims that the software engineering graduates are not able to meet their requirements in software industry. This is surprising to the academia that offers software engineering specialization. This type of situation is creating the barrier between the software industry and academics and the efforts are made to reduce the gap. So it is important identify weaknesses of projects. This paper outlines evaluating questionnaire about the student projects in software development courses student projects. The questions were intended to test students’ soft skills and hard skills. This questionnaires performed Software Engineering, System Analysis and Design, and Agile Software Development courses in the Department of Computer Engineering. All of these courses are project based learning. In this study, soft skills and hard skills in software development courses students project evaluated. The purpose of this study identify the students project weaknesses in project based courses to provide better quality education in software development courses, preparing students for professional life, improvement of the success rate of software projects and possibly lead to reduce gap between academy and industry.
An Approach for Designing a Complex Inductor –Workpiece system for Induction Heating
Authors: Dimitrov Borislav , Streblau Maik , Marinov Angel
Published: October 2024

The current paper presents an approach for designing a complex electromagnetic system consisting of an inductor and a workpiece. The approach is based on known methodologies and includes numerical methods for modelling. Using this approach, a methodology for designing the geometry of the inductor, based on the geometry of the workpiece, is suggested. The methodology can be used to develop designs with uniform temperature field, improved quality of the heating process and increased energy efficiency. Experimental study that verifies the advantages of the methodology is presented.
Capacity for Acceptance and use of Pre-accession Funds in the Republic of Macedonia
Authors: Jankulovski Nikolche , Bojkovska Katerina , Angeloska Dichoska Monika
Published: October 2024

The integration process of the Republic of Macedonia towards European Union is clear and unambiguous interest and priority goal. Republic of Macedonia within the integration processes from 16.05.2007, has the status of a candidate for membership in the European Union. Thus it has the right to use financial funds from the pre-accession funds in order to meet the criteria for membership in the European Union, and harmonization of the national legislation within the European. The paper has a goal to give preliminary assessment of the current capacities in the Republic of Macedonia for absorption of resources from the EU funds.
Design and Experimental Investigation of Pneumatic Movement Mechanism Supported by Mechanic Cam and Crank Shaft
Authors: Korucu Salih , Samtas Gurcan , Soy Gurkan
Published: October 2024

The pressurized air is applied to many sectors required purity and velocity. One of these sectors is to use of air as impulsive force in the moving mechanisms. In this study, the movement mechanism prototype worked with compressed air was designed and produced forlight vehicle engine as motorbike and ATV (All-Terrain Vehicle). In developed mechanisms, pneumatic artificial muscles were used for a given movement of crankshaft. A cam system was also designed for synchronization pneumatic muscles. In this way, these muscles transmit the synchronous movement to crankshaft. At the end of the study, the developed mechanism was mounted on an ATV vehicle(110 cc/ Cubic Centimeter, engine displacement capacity)and its performance was tested using the four different weights (50, 75, 100 and 150 kg), three different pressures (4, 5 and 6 bar) and two different hoses (Ø 6 and Ø 8 mm). By considering experimental results and design criteria, power of the movement mechanism was obtained as 886 Watt. With this study, minimization of energy consumption for movement of passenger cars, and using clean and cheap energy as ATV which can be alternative for single or two passenger vehicles.
Software System for Finding the Incipient Faults in Power Transformers
Authors: Petkova Nikolina
Published: October 2024

In this paper a new software system for finding of incipient faultsis presented.An experiment is made with real measurement of partial discharge(PD) that appeared in power transformer. The software system usesacquisition data to define the real state of this transformer. One of the most important criteria for the power transformer’s state is the presence of partial discharges. The wave propagation caused by partial discharge depends on scheme of the winding and construction of the power equipment. In all cases, the PD source had a specific position so the wave measured from the PD –coupling device had a specific waveform. The waveform is different when PD-coupling device is put on a specific place. The waveform and the time of propagation are criteria for the localization of the source of incipient faults in the volume of power transformer.
Antitumor effect of the Newcastle disease virus strain NDV/Altai/pigeon/777/2010 on a model of solid Lewis carcinoma
Authors: Karkavin Yu. I. , Adamenko L. S. , Yurchenko K. S. , Glushchenko A. V.
Published: October 2024

Aim. To evaluate the efficacy of intratumoral administrations of the Newcastle disease virus strain NDV/Altai/pigeon/777/2010, to compare progression of the tumor nodes after virotherapy and to analyse pathomorphological changes in the tumor tissue in vitro and in vivo. Single intratumoral injections of the mesogenic strain of Newcastle disease virus NDV/Altai/pigeon/777/2010, isolated from a rock dove in Siberia, were done into outbred mice of the C57Bl/6 line into solid nodes of Lewis lung carcinoma that were grafted subcutaneously. Then the dynamics of tumor growth and pathomorphological changes in the tumor tissue were assessed and analyzed.

It was shown that single intratumoral injections into immunocompetent C57Bl/6 mice with the mesogenic strain of Newcastle disease virus NDV/Altai/pigeon/777/2010 led to an increase in peculiar pathomorphological changes in the tumor tissue of subcutaneously grafted Lewis lung carcinoma and to a decrease in tumor growth compared to the control group of mice in vivo. A direct cytotoxic effect of the NDV strain on the Vero E6 cell line in vitro was noted.

The results of this study indicate that the NDV strain NDV/Altai/pigeon/777/2010 has antitumor properties. This may enable clinical trials to prove its effectiveness as an antitumor drug.
Antibacterial activity of Savory (Satureja hortensis) extract against pure culture strains of
Authors: Israpilova A. I. , Aliev A. M. , Adieva A. A. , Dzhafarova A. M. , Guseynova Z. A. , Murtuzalieva P. A.
Published: October 2024

The paper presents the results of a study of the antibacterial activity of supercritical carbon dioxide extract of the aboveground part of Savory (Satureja hortensis) against Escherichia coli, Salmonella spp. and Staphylococcus aureus bacteria.To study the antibacterial properties of Savory extract (Satureja hortensis) against infections caused by Staphylococcus aureus, Escherichia coli and Salmonella spp.In the course of the experiment, Savory extract obtained by supercritical carbon dioxide extraction was studied for antimicrobial activity against these bacteria. The component composition of the extract was determined by chromatography–mass spectrometry. To determine the antibacterial activity, we used the method of dilution in a liquid medium with subsequent measurement of the growth of the suspension culture biomass. The activity of the extract was compared with certified drugs included in the protocols for the treatment of bacterial infections. DMSO and potassium phosphate buffer were used as a negative control.The studies showed that the extract exhibits high antibacterial activity against all the studied bacterial strains and has a direct positive correlation with its concentration. Chromatographic mass‐spectrometry analysis showed that the extract of garden Savory contains 28 substances, the main ones being thymol (30.51 %), gamma‐terpinene (15.27 %), para‐ cymene (14.25 %) and Carvacrol (9.18 %), which both individually and in combination could exhibit antibacterial activity.Supercritical carbon dioxide extract exhibits pronounced antimicrobial activity against reference strains of S. aureus, Escherichia coli and Salmonella spp.
Associations of different genotypes with the meat productivity of sheep
Authors: Ozdemirov A. A. , Khozhokov A. A. , Akaeva R. A. , Alieva E. M. , Alieva P. O. , Guseynova Z. M. , Daveteeva M. A.
Published: October 2024

Identification of the potential to increasthe agricultural production of farm animals has become possible through the use of genomic selection methods. It is advisable to improve breeding and pedigree qualities of local breeds, since these have the best adaptability to the features of the natural and geographical conditions in a given area. He controlled slaughter of animals with different genotypes allowed us to determine their meat qualities, such as biological value, slaughter yield and slaughter weight. The ratio of slaughter weight and pre‐slaughter weight gives the slaughter yield in percent.PCR (polyamino acid chain reaction) using specific synthesised sets of oligonucleotides in the genotyping of experimental sheep populations was carried out in order to study the allelic variants of the CAST and GH genes.When studying the indices characterising body weight in sheep which have different genotypes, significant increases in the indices could be observed before the periods of driving to summer pastures (17.2 kg) and during lambing (25.8 kg). The lowest indices were noted during driving both from winter pastures to summer pastures and from summer pastures to winter pastures (30.5 kg).In the period before driving, the live weight index was higher in the CASTMM genotype by 5.8 %; upon arrival in the mountains the difference was 6.1 %; during lambing — 4.7 %; before leaving for winter pastures — 8.4 % and upon arrival at winter pastures — 9.5 %.
Index of development of transport infrastructure as a factor of sustainable development of the coastal zone of the Sea of Azov, Russia
Authors: Arkhipova O. E. , Patrakeeva O. Yu.
Published: October 2024

As a zone of interaction between land and sea, coastal zones are becoming a strategic area for achieving a sustainable expansion of economic space. The object of study is the coastal zone of the Sea of Azov (Rostov Region and Krasnodar Territory). The subject of the study is an assessment of the dynamics of transport infrastructure development index as a factor in the sustainable development of the coastal zone of the Sea of Azov.

Methodological approaches to assessing the sustainable development of the territory were based on a methodology based on methods of system analysis, mathematical modeling, and GIS technologies. An indicator has been formulated that considers the area of the territory, the population, the length of public roads of local importance, the shipment of goods of local production, the work and services performed on their own, in order to measure the ‘economic’ load on the transport infrastructure.

The analysis of the state of the transport infrastructure of the regions of the coastal zone for the period from 2015 to 2021 was carried out. Based on an analysis of the transport infrastructure index, it was concluded that the attraction of municipalities to the Rostov agglomeration, together with the strengthening of social, trade and infrastructure contacts with megacities will lead to a further increase in the anthropogenic load on the territory. The areas studied of the Krasnodar Territory belong to the Northern Economic Zone – a territory with a diversified economy, characterised by cross‐border links with neighboring regions.

Highways are the most important link in the transport and logistics system. The level of development and the technical condition of the road network have a significant and diverse impact on the economic and social development of both the state as a whole and it individual regions.
Seasonal states and carbon dynamics in key areas of the carbon polygon in the Chechen Republic, Russia
Authors: Gunya A. N. , Gayrabekov U. T. , Makhmudova L. Sh. , Gagaeva Z. Sh.
Published: October 2024

The aim of the work was to analyze the relationship between carbon dynamics and changes in the states of natural territorial complexes in two key areas of the carbon polygon in the Chechen Republic from the standpoint of landscape and landscape‐geophysical approaches. The work was carried out at two sites of the carbon polygon in the Chechen Republic: in Chernorechye (the Chechen plain under water‐protective broad‐leaved forests, about 169 m above sea level) and Roshni‐Chu (low‐ mountain broad‐leaved forests, about 450 m above sea level).Methods: landscape‐geophysical description of geomasses, geohorizons and vertical structures in key areas, detailed microclimatic studies using installed loggers with temperature and humidity sensors, observations of the state of the vegetation cover, biomass dynamics, determination of mortmass fractions on the soil surface, as well as humus and basic nutrients.The relationship between carbon dynamics and changes in seasonal states of natural‐territorial complexes is expressed in changes in landscape‐ geophysical parameters: the ratio of geomasses, geohorizons and vertical structures. Seven seasonal states of natural‐territorial complexes with different carbon dynamics have been identified. Two of them are key to understanding the long‐term carbon balance. These states are determined by the dynamics of accumulation and decomposition of mortmass. The ways of changing the intensity of carbon deposition based on the creation of new phytocenoses, increasing soil fertility, including by optimising the carbon and nitrogen ratio have been identified. A more radical way – mortmass utilisation – requires detailed research and consideration of environmental consequences.
Potential and investment attractiveness of improved forestry projects under increasing climatic challenges
Authors: Morkovina S. S. , Sheshnitzan S. S. , Ivanova A. V. , Yakovenko N. V. , Pryadilina N. K.
Published: October 2024

The aim is to justify the potential and provide an assessment of the effectiveness of investing in forest climate projects for improved forestry.

A systematic approach was used for a comprehensive, structured and dynamic study of the potential of project activities (forest‐climatic projects) to improve forest productivity. The investment efficiency of forest‐climatic projects on improved forestry is determined taking into account the life cycle of project solutions. To conduct an express assessment of investment attractiveness of forest‐climatic projects, the coefficient characterizing the efficiency of investment for the produce of carbon units was used.

It has been revealed that the regions of the Northwestern, Ural and Siberian Federal Districts have the greatest potential of areas of plots (over 2 million ha) for the realization of forest‐climatic projects on improved forestry. It has been shown that for the implementation of forest‐climatic projects on improved forestry in the conditions of the Central forest‐steppe per 1 ha investments of up to 100 thousand rubles are required. For climatic projects on improved forestry, the minimum investment per unit area will be from 97–111 thousand rubles per 1 ha, taking into account the life cycle of the project.

The actual practice‐oriented task in the field of forestry has been solved. It consisted in substantiating the investment attractiveness of natural solutions aimed at increasing the carbon depositing functions of forest ecosystems. Calculated potential of areas for the implementation of forest‐climatic projects on improved forestry is an important tool for territorial planning and ensuring sustainable development of regional systems.
Public non‐financial reporting: Reflection of environmental aspects of development and activities of economic entities
Authors: Gadzhiev N. G. , Lazareva N. V. , Konovalenko S. A. , Trofimov M. N. , Yusufov N. A.
Published: October 2024

The article considers economically significant information reflected in public non‐financial reporting, enabling reflection on the environmental aspects of an organization's development. The analysis aims to articulate problems in the disclosure economically significant information in public non‐financial reporting due to a significant difference between national and international requirements in terms of the environmental aspects of development.

In the process of conducting this study, a monograph (descriptive) research method, a system analysis method and a comparative analysis method were used.

The results of the study confirmed the need to improve environmental reporting as part of the development of the concept of non‐public financial reporting, while authors emphasising the need to develop the composition and content of environmental reporting, taking into account the integration of financial and non‐financial reporting. The application of the approaches outlined in the article allowed the generation of more transparent information for all interested users regarding the environmental activities of companies and will bring national and international standards closer to application.

The environmental reporting of companies and its components are proposed as part of the development of the concept of public non‐ financial reporting.
Composition of biopesticides for crop protection – current state and prospects (review)
Authors: Homyak A. I. , Asaturova A. M.
Published: October 2024

Aim. To summarise and analyse available information on research into biopesticide compositions aimed at enhancing their effectiveness and to assess prospects for the development of this field so as to determine the influence of components on the effectiveness of biopesticides for agricultural crop protection.

This review article presents the results of studies of components included in the compositions of microorganism‐based biopesticides based on a system analysis. It is noted that the selection of biopesticide components must be carried out in accordance with the requirements for products recommended for use in ecological and organic farming systems. It is indicated that the choice of optimal formulation is associated with the characteristics of the producer strains, their trophic needs and resistance to biotic and abiotic factors and with the characteristics of the biopesticide application technology (seed treatment, application to the soil or treatment of plants during vegetation), as well as the type of equipment used.

Knowledge of the basic requirements for biopesticide formulations will help maintain the viability and biological activity of microbial agents during storage of biopesticides, taking into account the sensitivity of producer strains to environmental conditions. Selection of optimal carriers, adhesives, stabilisers, thickeners and synergists, taking into account the technology of application of the biopesticide and the target pathogen, will facilitate the development and appearance on the market of new biopesticides for protecting agricultural crops from diseases.
The Effect of Reactive Neuromuscular Training versus General Warm-up on Proprioception and Balance in Female Handball Players with Rounded Shoulder: A Controlled Laboratory Study
Authors: Farhani-Sameni Narges , Sheikhhoseini Rahman , Piri Hashem , Soltani Fateme
Published: October 2024

Background: This study aimed to compare the immediate effects of a session of reactive neuromuscular training (RNT) with warming-up exercises on shoulder proprioception and dynamic balance in female handball players with shoulder impingement.
Methods: In this controlled laboratory study, 18 female adolescent handball players from 14 to 18 years old were recruited from Samen City, Iran. The participants participated once in the warm-up routine program and once in the RNT program. Before and after each exercise program, shoulder proprioception was measured by photogrammetry and dynamic balance of the upper limb was measured using the Wye balance test. The paired t-tests, with a significance level of 0.05, were employed to compare pre-test and post-test data.
Results: Both exercise protocols had no significant effects on shoulder repositioning error (P > 0.05). However, participation in both exercise programs resulted in a significant improvement in the dynamic balance score of the upper limbs of the athletes (P < 0.001). Moreover, no significant differences were observed between the effect of routine handball exercises and the effect of RNT exercises on shoulder repositioning and dynamic balance in female handball players (P > 0.05).
Conclusion: It seems that routine warm-up exercises and RNT could not improve proprioception in the shoulders of student- athletes with round shoulders. However, both training methods caused a significant improvement in the dynamic balance of the upper limb, although there was no significant difference between the effects of the two methods.
Functional Outcome of Extra-Articular Distal Tibia Fracture Treated with Tibia Interlocking Nail: A Case Series
Authors: Patel Ishani , Kavi Shivam , Amin Tarkik , Modi Dhaval R. , Kantaria Harsh , Masalawala Harsh
Published: October 2024

Background: Intramedullary interlocking nailing has emerged as one of the suitable management options for distal tibia fractures as it allows mechanical compression on weight-bearing, which stimulates bone healing. We studied 40 cases of extra-articular distal tibia fracture treated by intramedullary nailing.
Methods: We retrospectively studied 40 patients of both sexes above the age of 18 years with closed fractures and grade 1, 2, and 3A compound fractures treated at SVP Hospital, Ahmedabad, India. Clinically, the fracture was considered to be united when the patient was completely pain-free. Patients were followed up at monthly intervals till union. At each follow-up, patients were assessed both clinically and radiographically, and details were recorded based on proforma.
Results: The evaluation of the result was done using American Orthopedic Foot and Ankle Society (AOFAS) criteria. Thirty-three patients had excellent functional results, five had good functional results, and Two had fair functional results. In this study, 38 (95%) patients had radiological union within 24 weeks. Two patients had union after 28 weeks.
Conclusion: Intramedullary nailing is a minimally invasive procedure that preserves the soft tissue and the fracture hematoma. It maintains the length, alignment, and rotation and allows micromotion at the fracture site on weight-bearing, which stimulates callus formation. It has a good functional outcome with gratifying results when used in extra-articular distal tibia fractures.
Comparison of Surgical and Non-Surgical Treatments for Proximal Humerus Fractures: A Cross-Sectional Study
Authors: Kokly Saeed , Etemadi Ramin , Momen Omid , Hosseininejad Seyyed-Mohsen , Shakiba Sina
Published: October 2024

Background: The proximal humerus fracture (PHF) is one of the most common fractures of the upper limbs. PHF is more common in older people, usually following a fall, whereas in younger people this form of fracture is typically caused by high-energy trauma. There are several treatment options for PHFs, including surgical and non-surgical procedures. Our aim was to compare the outcomes of surgical and non-surgical treatment methods in Iranian patients with PHFs.
Methods: Sixty patients with PHFs participated in this single-center cross-sectional study. Medical records were reviewed and evaluated according to demographic characteristics, underlying diseases, type of treatment, complications, need for reintervention, and Constant score.
Results: The mean age of the patients was 45.65 years. Among those older than 50 years, women significantly outnumbered men (66.7%, P = 0.009). Thirty-one patients received surgical treatment, while 29 patients received non surgical care. The Constant scores of patients who underwent surgery were considerably higher than those of non-surgical patients [mean ± standard deviation (SD): 80.41 ± 1.89 versus 69.82 ± 1.82, P = 0.009]. This significant relationship was observed only in the age group of 18 to 49 years.
Conclusion: Overall, the complications arising from both surgical and nonsurgical treatments were not statistically significant; however, patients under the age of 50 and men had higher Constant scores, indicating better clinical outcomes.
A Case Report of a Rare Presentation of Semimembranosus Tibial Plateau Avulsion: The Bony Ramp Lesion
Authors: Vaziri Arash Sharafat , Rabie Hamid , Oskouie Iman Menbari , Tahami Mohammad , Rahimdoost Nazanin
Published: October 2024

Background: Tibial plateau posteromedial rim avulsions by semimembranosus tendon are a rare entity that have been reported in a few studies so far with controversial mechanisms. They are reported to accompany anterior cruciate ligament (ACL) or meniscal injuries. Their main fracture planes are usually placed in the coronal plane.
Case Report: The patient was a 52-year-old man with a hyperextension-valgus tibial plateau fracture. The imaging studies revealed a compression fracture of the lateral and an avulsion fracture of the posteromedial plateau. However, no soft-tissue injuries were detected. The fragment was avulsed in the axial plane and covered by the medial meniscal posterior horn, creating the pattern of a longitudinal tear in the meniscal ramp lesion, but actually without any soft-tissue injuries. It was fixated using the tension band wiring technique with two Kirschner wires (K-wires) and one cancellous screw. Radiological and functional outcomes were excellent at 12-month follow-up.
Conclusion: This fracture pattern merits special attention due to its unusual presentation, causing the meniscal posterior horn to separate from the articular surface. “Bony ramp lesion” best describes the simultaneous separation of the posterior horn of the medial meniscus (PHMM) and its underlying bony fragment without the meniscal tear that takes place in an actual medial meniscal ramp lesion.
Clinical Management, Prognosis, and Outcomes of Bilateral Acetabular Fractures: A Case Report
Authors: Zandi Reza , Ahmadi Abdashti Ahmadreza , Nouri Nasim
Published: October 2024

Background: Bilateral acetabular fractures are a rare type of acetabular fracture, and due to the scarcity of information regarding these types of fractures, managing bilateral acetabular fractures presents significant challenges. We presented a 25-year-old man with bilateral acetabular fractures (left transverse fracture of the acetabulum and right posterior column fracture of the acetabulum) secondary to severe trauma following a road accident with no other pelvic damage.
Case Report: Because the displacement was more on the patient's left side (although the patient's pain was more on the right side), the open reduction and internal fixation (ORIF) surgery was first performed on the left side, and secondary ORIF surgery was performed on the right side, under general anesthesia with Kocher-Langenbeck approach for both sides.
Conclusion: Due to the increase in road traffic accidents (RTAs) and improper safety of cars, especially in developing countries, this type of fracture may be repeated in the future, and regarding the complexity and comorbidities associated with this type of fracture, the high experience of the surgeon and detailed investigations are required to achieve successful results.
Osgood-Schlatter Disease in an Adult Athlete: A Case Report and Review of the Literature
Authors: Vaziri Arash Sharafat , Rahimdoost Nazanin , Esfandiary Soodabeh , Vosough Fardis , Moezi Mehdi , Oskouie Iman Menbari
Published: October 2024

Background: Osgood-Schlatter disease (OSD), a form of traction apophysitis, predominantly affects adolescents engaged in high- impact activities. While conservative management is often effective, surgical intervention becomes necessary in refractory cases.
Case Report: A 29-year-old male athlete with persistent OSD symptoms underwent arthroscopic surgery after unsuccessful non- surgical treatments. Arthroscopic removal of the bony particle was undertaken using six portals with a novel setting (consisting of medial and lateral superior, standard, and inferior portals) to minimize the damage to the patellar tendon and intermeniscal ligaments. This setting of portals also obviates the need for fluoroscopy since it provides adequate visualization for confirmation of complete removal of the bony particle. The lower portals also provide more convenient access to the bony particle, minimizing the possibility of incomplete removal and persistence of symptoms. The patient experienced complete resolution of anterior knee pain and prominence within six months post-surgery. Arthroscopic removal of the ossicle involved the use of superior portals for optimal access and visualization. Low portals were strategically employed to eliminate the need for fluoroscopy, offering a unique advantage. Postoperative rehabilitation included immobilization followed by a gradual return to weight-bearing and full range of motion (ROM).
Conclusion: Arthroscopic removal remains the preferred method for treating OSD, emphasizing fewer complications. However, challenges related to limited access and anatomical restoration persist.