bluuebunny/crossref_metadata_2025 huggingface dataset:
THE INFLUENCE OF REVERSE GEOMETRIC MODELING TO THE DIMENSIONS AND SHAPE OF THE 3D MODEL
Authors:   Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, DUBNICKA MAROS , BURANSKY IVAN ,   Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, MILDE JAN ,   Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava
Published: December 2024

The aim of the study is to investigate the effect of point reduction on the dimensions of a part produced by two different additive technologies, Stereolithography (SLA) and Fused Deposition Modelling (FDM). Also, the effect of polygonization methods on the number of points and file size. For the purpose of the experiment, a part was fabricated which was made up of geometric elements, which served to investigate the influence of the reverse geometric modelling on parameter variation. Subsequently, the model was made into two samples by additive manufacturing FDM and SLA on Stratasys F370 (FDM) and Form 3 (SLA). From the fabricated samples, 3D data was collected on a Metrotom industrial CT 1500, cloud of points was obtained and polygonised in various ways in CAQ software GOM Inspect and CARE software VG Studio MAX. The evaluation as well as the process reverse modelling was performed in Autodesk Powershape software. The results show that different polygonization methods affect the number of polygonal mesh points and the volume of data. It was also found that the reduction of the points by which the polygonal network is formed leads to variations in the dimensions of the geometric features. Another important factor is the method of additive manufacturing of the component, where we have shown point reduction has a different effect for a component manufactured by SLA and a component manufactured by FDM.
ACCELERATED SUBSPACE ITERATION METHOD FOR SIMULATING VARYING EIGENPAIRS OF THIN-WALLED WORKPIECES
Authors:   RWTH Aachen University, Laboratory for Machine Tools and Production Engineering, BRECHER CHRISTIAN , ZHAO GUIFENG ,   RWTH Aachen University, Laboratory for Machine Tools and Production Engineering, FEY MARCEL ,   RWTH Aachen University, Laboratory for Machine Tools and Production Engineering
Published: December 2024

This paper presents an innovative accelerated subspace iteration method tailored for simulating varying eigenpairs of thin-walled workpieces. The proposed approach significantly boosts computational efficiency by selecting optimal start iteration vectors for a given cutter location. The optimal start iteration vectors are generated based on the previously calculated eigenvectors from the preceding cutter location. A numerical example illustrates the efficiency enhancement achieved by the proposed method, showcasing a notable reduction in computation time. Furthermore, to evaluate the numerical accuracy of the accelerated subspace iteration method, comprehensive comparisons are conducted with results obtained from Abaqus simulations. The outcomes affirm the numerical accuracy of the proposed approach.
NANO-MATERIALS IN DENTAL IMPLANTS - UNDERSTANDING COMPOSITION AND BIOFILM DYNAMICS
Authors:   Technical University of Kosice, Faculty of Manufacturing Technologies with a seat in Presov, PANDA ANTON , DYADYURA KOSTIANTYN ,   Odesa Polytechnic National University, Department of Biomedical Engineering, IVAKHNIUK TATYANA ,   Sumy State University, Department of Public Health, HREBENYK LIUDMYLA ,   Sumy State University, Medical Institute, Department of Biophysics, Biochemistry, Pharmacology and Biomolecular Engineering, PRIMOVA LIUDMYLA ,   Sumy State University, Medical Institute, Department of Biophysics, Biochemistry, Pharmacology and Biomolecular Engineering
Published: December 2024

The study showcases findings from an investigation into the chemical composition and morphology of nanocomposite materials employed in the production of dental implants. By utilizing clinical strains of microorganisms isolated from patients with implant infections (including Bacteroides fragilis, Porphyromonas melaninogenica, Actinomyces spp., and Staphylococcus aureus), the authors of the paper analyze the results of the dynamics of biofilm formation on the composite's surface. To minimize complications following surgical procedures in dentistry, the recommendations on the most advantageous research algorithm for composite materials are provided. The implications of these findings extend to the broader field of biomaterials, emphasizing the significance of a meticulous examination of the chemical and morphological attributes for enhancing the long-term success and safety of dental implants. This comprehensive approach addresses immediate concerns related to biofilm formation and provides a foundation for developing more resilient and biocompatible materials in dental prosthetics.
EFFECT OF TEST PARAMETERS ON ABRASION RESISTANCE OF COATINGS UNDER ABRASIVE WEAR CONDITIONS
Authors:   Technical University of Kosice, Faculty of Mechanical Engineering, MITAL GERHARD , JEZNY TOMAS ,   Technical University of Kosice, Faculty of Mechanical Engineering, SPISAK EMIL ,   Technical University of Kosice, Faculty of Mechanical Engineering
Published: December 2024

The article deals with the determination of the influence of the speed of hard metal layers welding, with a focus on the evaluation of the abrasive wear of the layers formed by the tubular wire welding technology. The layers were wound with filled wire manufactured by ESAB under the trade name Fluxofil 58. Two different winding speeds of v=125m/min and a speed of 18m/min were used to produce the samples. Subsequently, it was necessary to determine the dependence of abrasive wear on the different abrasive hardness.
The abrasives used in the experiment were SiO2 (silica) and Al2O3 (alumina, also referred to as corundum). Abrasive wear resistance was determined from the mass loss determined by weighing the prepared specimens before the test and also after traversing the 420 m and 716 m sliding paths. The specimens were prepared in accordance with ASTM G 65/16. Subsequently, an analysis of the surface degradation after wear was carried out using a Neophot 21 optical metallographic microscope. S355J0 grade steel (11 523) was used as the substrate and therefore the base material. This is a structural unalloyed steel with prescribed mechanical properties and guaranteed carbon, sulphur and phosphorus levels.
Meta-avaliação: Análise do percurso avaliativo do PME/Dourados 2015-2024
Authors: Rodrigues Evally Solaine de Souza , Aranda Maria Alice de Miranda
Published: December 2024

Objetivando avaliar o mérito e o valor do processo de acompanhamento do Plano Municipal de Educação de Dourados-MS, o artigo traz resultados conclusivos de uma pesquisa de doutorado em educação. Recorreu-se aos padrões de avaliação do Joint Committee on Standards for Educational Evaluation, à pesquisa documental e à pesquisa de campo. Dos documentos analisados, destacam-se os relatórios de monitoramento e avaliação do Plano, elaborados pela Comissão Municipal de Monitoramento e Avaliação no decurso de 2015 a 2021. A investigação empírica fez uso de entrevistas semiestruturadas, questionários e observação não participante das reuniões da Comissão. Os dados apontam para a insuficiência avaliativa do Plano, engendrando, assim, demandas que necessitam ser superadas pressurosamente.
SELECCIÓN DE MARTILLOS DIÉSEL PARA EL HINCADO DE TUBERÍA CONDUCTORA MEDIANTE EL USO DE LA FÓRMULA ENR
Authors: Bustos Moreno Mauricio Adrián
Published: December 2024

En ciertos países de Latinoamérica como Ecuador, Colombia, Perú y México; la sección inicial de perforación de un pozo corresponde a la sección de 26 pulgadas, la cual es revestida con tubería conductora de 20 pulgadas. Actualmente esta sección inicial del pozo se lleva a cabo con taladros de perforación, pero también se está optando por el uso de un martillo diésel para realizar el hincado de la tubería conductora. El uso de la fórmula ENR es uno de los métodos más sencillos y más utilizados pare determinar la capacidad de carga permitida y la resistencia de la tubería hincada por cada golpe aplicado debido a su simplicidad, ya que solamente es necesario conocer las especificaciones técnicas de la tubería conductora a hincar y el modelo del martillo diésel a utilizar. Además, se debe considerar que no todos los modelos de martillos diésel pueden emplearse para realizar los trabajos de hincado de la tubería conductora y que exceder el punto de rechazo en el último pie hincado podría ocasionar el colapso de la tubería conductora. El uso de un martillo diésel para el hincado de tubería conductora puede ofrecer un ahorro del 50 % en comparación con los costos asociados a los taladros de perforación. Este ahorro convierte al martillo diésel en una opción muy atractiva para llevar a cabo la sección inicial de un pozo.
An Analysis of Teacher Discipline at SMP Negeri 6 Luwuk, Indonesia: A Qualitative Study on Attendance, Punctuality, and Professional Responsibility
Authors: Salingkat Suhartini , Sudane I Wayan
Published: December 2024

This study evaluates teacher discipline at SMP Negeri 6 Luwuk, focusing on attendance, punctuality, lesson preparation, participation in meetings, and task completion. It aims to identify strengths and weaknesses in teacher discipline and explore the impact of the principal's leadership style on teacher performance. A qualitative approach was used, with data collected through observations, interviews with teachers and the principal, and documentation analysis.Findings show strong discipline in attendance, punctuality during teaching hours, and lesson preparation. However, issues exist in non-teaching punctuality, inconsistent participation in meetings, and delayed task completion. The principal’s democratic and charismatic leadership style fosters a positive work environment and enhances teachers’ responsibility.Despite overall discipline, improvements are needed in punctuality and task completion. The principal’s leadership supports a positive culture, but additional strategies are required to address weaknesses and optimize discipline. The study calls for targeted interventions to improve teacher discipline, ultimately enhancing school performance and educational outcomes.
Frankenstein y el monstruo del contrato social desde la crítica feminista
Authors: Rodríguez Peñaranda María Luisa
Published: December 2024

Este artículo examina cómo la ficción del contrato social en la teoría política perpetúa estructuras de dominación que marginan a las mujeres, al legitimar su exclusión de la esfera pública y su subordinación en la privada. A través de una lectura feminista y republicana revisada, se explora también cómo Mary Shelley, en Frankenstein, critica la usurpación masculina de la creación de vida y expone la relación entre ciencia, poder y género. Este análisis propone un diálogo entre teoría política y literatura, para cuestionar las bases patriarcales del contrato social y sus implicaciones en la construcción de la identidad femenina y los derechos de las mujeres.
Generación de Energía Eléctrica a partir de Residuos Sólidos Urbanos (RSU) mediante el uso de Tecnologías Waste-to-Energy (WtE): Panorama Global y Perspectivas en Panamá
Authors: Espinoza H. Andy
Published: December 2024

El uso de tecnologías Waste-to-Energy (WtE) para transformar Residuos Sólidos Urbanos (RSU) en energía eléctrica es una solución sostenible en Panamá. Este enfoque reduce el volumen de desechos, disminuye emisiones de gases de efecto invernadero y sustituye combustibles fósiles, cubriendo las necesidades energéticas de más de 150,000 familias y promoviendo una economía circular.
Ancillary Services to Mitigate Non-linear and Unbalanced Load Based on CPT Using a DFIG Power Plant
Authors: Hinostroza Carlos Leonardo A. , Silveira João Pedro C. , De Paula Marcelo Vinicius , Dos Santos Neto Pedro José , Ruppert Filho Ernesto , Barros Tárcio André S.
Published: December 2024

The increase of renewable energy sources and non-linear loads on the utility grid introduces challenges in maintaining the nominal conditions of the utility grid. A viable approach to addressing some of these challenges is to utilize renewable energy conversion systems that accomplish supplementary functions in addition to supplying active power. This paper presents the implementation of ancillary services to mitigate non-linear and unbalanced loads using a single Doubly Fed Induction Generation (DFIG) power plant. For this, the Conservative Power Theory (CPT) is used to provide three types of services simultaneously: active filtering, reactive power compensation, and unbalanced phase compensation. A back-to-back converter is used to control the power flow in the DFIG and employ ancillary services. Two control strategies are compared: in the dq reference frame and the $\alpha \beta$ reference frame. Simulations in MatLab/Simulink are used to evaluate the response of the CPT and the control strategies. The ancillary services performance is analyzed using the indicator based on standards and CPT factor. The results show that the indicators comply with the standards depending on the active power supply. Moreover, $\alpha\beta$ reference frame exhibits better performance than $dq$ reference frame.
The effect of the drug "Epin-extra" on increasing the resistance of Fragaria х ananassa Duch. varieties to spring frosts
Authors: Stupina A. Yu. , Prudnikov P. S.
Published: December 2024

Relevance. A crucial condition for maintaining the vital potential of plants is their ability to with-stand adverse environmental conditions. The aim of the work was to study the effect of the drug "Epin-extra" on strengthening the resistance of Fragaria х ananassa Duch. plants for spring frosts.

Methods. The objects: strawberry garden Queen and Harvest CGL. With the onset of active growth in the spring period non-root treatments of strawberry plants with were carried out with a solution of the Epin-extra growth regulator containing 24-epibrassinolide. During budding phase, the plants were exposed to negative temperatures in a controlled environment chamber (-3oC) "Espec" PSL-2KPH (Japan). The functioning of the antioxidant defense system and the activity of lipid peroxidation processes in membranes lipids (POL) based on the accumulation of malondialdehyde (MDA) were carried out in the leaves of strawberry varieties.

Results. It was shown that the non-root treatment of strawberry varieties with the Epin-extra preparation contributed to a decrease in the processes of peroxidation of cell membranes. The content of malondialdehyde (MDA) was 10,2% lower by the Tsaritsa variety, and the variety the Urozhainaya CGL by 30,1% compared to the control. The amount of the amino acid proline in the Tsaritsa variety was 13,6 % higher compained to the control, and in the Urozhainaya CGL variety by 12,4%. Treatment with Epin-extra contributed to an increase in the amount of sugars in the leaf tissue of both varieties.
TAL-effectors occurrence among Xanthomonas campestris pv. campestris: catch me if you can
Authors: Razhina O. L. , Lebedeva M. V. , Cherniaev K. A. , Ignatov A. N. , Dzhalilov F. S. , Taranov V. V.
Published: December 2024

Relevance. Xanthomonas campestris pv. campestrisis a widespread bacterial pathogen that causes a black rot disease of Brassicaceae plants. It is distributed across all territories with cultivated brassica crops and has high economic significance. One of the known Xanthomonas pathogenicity factor is TAL-effectors. These proteins penetrate in plant nucleus and change expression of some host genes in order to promote infection. For some Xanthomonas species TAL-effectors are a key of bacteria success, however for Xcc their role is still remain obscure as well as TALE occurrence among Xcc belonged to different races and originated from different regions. The goal of our study was examination of TALE distribution among Xcc isolates collected in Russia.

Methods. Sample of the Xcc isolates mainly collected in Moscow region and Krasnodar krai was used for TALE search. Bacterial total DNA was isolated using CTAB method. Four primer pairs were used for TALE genes detection by amplification conservative regions.

Results. Among 50 isolates only 4 isolates possessed TALE were revealed. Low-frequency occurrence of TALE among Russian isolates can reflect Xcc population features in Moscow region and Krasnodar krai as well as genotype features of cultivated plant hosts.
Breeding sugar beet for the resistance to abiotic environmental factors
Authors: Vostrikova T. V. , Bogomolov M. A. , Senyutin A. A. , Putilina L. N.
Published: December 2024

Relevance. The selection for productivity and stability on different stages in the breeding process includes an assessment of the adaptive capacity and genotypes ecological stability. Therefore breeding for the resistance to abiotic environmental factors is closely connected with the adaptive breeding, which has received special attention in recent years.

Methodology. The work was carried out at the “A.L. Mazlumov All-Russian Research Institute of Sugar Beet and Sugar” in 2011-2020. Male-sterile forms of sugar beet were crossed with fertile diploid multi-seeded pollinators (ARRISBS selections) by topcross method. The resulting hybrids were assessed for yield, sugar content and sugar collection according by standard methods used at the “A.L. Mazlumov ARRISBS”. It is carried out the annual work, including selection of the best and rejection of the worst options for the studied characteristics. An assessment was made of lines and hybrid combinations of sugar beet for the resistance to a complex of unfavorable natural and climatic factors based on the characteristics of yield, sugar content and seed productivity.

Results. The results of improving selections over ten years show an increase in the weight of the root crop and the sugar content for the original single-seeded and multi-seeded materials. Single-seeded (MS-2113, MS-Perla) and multi-seeded (OP-15465, OP-15676, OP-15202) lines with high combining ability in terms of yield and sugar content of root crops were identified. An increase in the resulting parameter - sugar collection - was noted by 2020 (to 8,8-9,0 t/ha), illustrating the positive dynamics of the breeding process of sugar beet for plants of the first life year. An increase in the weight of 1000 seeds (to 13,4-13,9 g) and separate fruiting (to 98-99%) was shown during the breeding process for plants of the second life year.

Conclusion. The studied hybrid combinations have a wide reaction rate to a complex of natural climatic factors: elevated temperatures in combination with high and low humidity.
Priority directions of onion breeding (Allium cepa L.)
Authors: Marcheva M. M. , Seredin T. M. , Kaigorodova I. M. , Soldatenko A. V. , Baranova E. V.
Published: December 2024

Relevance. Onion (Allium cepa L.) is a valuable and demanded vegetable crop, which occupies one of the leading places in terms of sown areas and gross yields among other vegetable crops of the genus Allium L. Onion is popular in folk and evidence-based medicine, widely used for the prevention and treatment of many diseases due to its rich biochemical composition and useful properties. As part of import substitution and achieving food security of the country, scientists of the Federal State Budgetary Scientific Institution «Federal Scientific Vegetable Center» (FSBSI FSVC) are working intensively to create new generation varieties and hybrids.

Methodology. Various resources on the topic were selected, publications in scientific and industry journals and databases were studied, a review of works on onion selection (yield, species diversity in shape and color, maturity, shelf life, biochemical parameters, commercial and seed productivity, resistance to biotic and abiotic stresses), as well as useful properties for humans and use in medicine was made.

Results. The analysis of works shows that the wide distribution in the Russian Federation have such varieties of selection of FSBSI FSVC, such as Myachkovskij 300, Cherni prince, Al'ba, Atas, Ampeks and others. In recent years, created a medium-maturing hybrid onion onion F1 Drakon with brown dry scales and a maximum yield of 391.0 c/ha, as well as transferred to the State variety trial winter variety Novator with brown dry scales. Propagation of demanded varieties and hybrids for both production cultivation and for use in household farms is underway.

Conclusion. In order to conveyor onion production, it is necessary to create varieties and hybrids of different maturity groups, as well as to work on improving marketability, seed productivity and resistance to various stresses.
Cucumber productivity depending on the use of microbiological preparations
Authors: Bocharova M. A. , Terekhova V. I.
Published: December 2024

Relevance. In the modern production of greenhouse products, with hydroponic cultivation of crops, one of the safe ways to increase the quantity, quality of cucumber products and plant protection is the use of microbiological preparations.

Methodology. The purpose of our work was to assess the effect of a complex of microbiological preparations on the productivity of cucumber hybrids in winter and spring turnover. The study was conducted in industrial greenhouses during 2021-2022. Long-fruited (Lohengrin F1) medium-fruited (Mewa F1 and Svyatogor F1) and short-fruited (Valigora F1) parthenocarpic cucumber hybrids were selected as research objects. The preparations were applied five times, at 30-day intervals throughout the entire growing period, the first application when planting plants in the production department. Measurements of economically valuable and chemical indicators were carried out weekly. Descriptive statistics and ANOVA methods were used for statistical data analysis.

Results. As a result of the research, a positive stimulating effect of a complex of microbiological preparations on the accumulation of raw and dry biomass, an increase in yield and its quality in the studied cucumber hybrids was revealed. The final yield when applying microbiological preparations increased on average from 4.1 to 5.5 kg/m2 in all cucumber hybrids over the two years of study, while the yield of standard products in the total crop structure increased by 2.7% - 6.4%.
Marker-assisted selection and DH-technology utilized to accelerate fusarium-resistant cabbage (Brassica oleracea var. capitata L.) line development
Authors: Fomicheva M. G. , Kostenko G. A. , Domblides A. S.
Published: December 2024

Relevance. The use of modern biotechnological methods in breeding, namely the doubled haploid technology and marker-assisted selection, can significantly reduce the time for creating pure lines with valuable properties. Fusarium wilt is one of the economically important diseases of white cabbage. Therefore, the development of a MAS method for selecting doubled haploids resistant to fusarium wilt would allow fast selection of resistant pure lines. Moreover, the resistance testing can be done at any plant developmental stage.

Materials and methods. The response of hybrids Gertsoginya F1, Poisk 2018 F1 (resistant samples, the originator – the Agrofirm “Poisk”) and Slava 1305 (susceptible sample, the originator – Federal Scientific Vegetable Center) towards Fusarium oxysporum f. sp. conglutinans infection was determined by evaluating their growth on the inoculated soil. To test the efficiency of the FocBNUf/r marker to the polymorphic region of the FocBo1 gene, the markers were tested on resistant and susceptible genotypes. Then the markers were applied to analyze 60 doubled haploids of 12 different genotypes.

Results. It was demonstrated that the FocBNUf/r marker effectively differentiated resistant and susceptible samples. Doubled haploids were obtained from 12 different breeding samples for FocBNUf/r marker-based selection of fusarium wilt resistant plants. PCR testing of doubled haploids for fusarium resistance allowed us to select 6.7-100% of plants with the fusarium resistance gene in a homozygous state in 8 genotypes. 4 genotypes of doubled haploids that did not carry the resistance gene were eliminated from the breeding program.

Conclusion. The FocBNUf/r marker effectively identified resistant and susceptible samples, as well as differentiates homozygous and heterozygous plants. FocBNUf/r marker was used to select resistant doubled haploids of white cabbage at the seedling stage. Thus, it was possible not only to accelerate the production of pure lines by obtaining doubled haploids, but also to accelerate the selection of valuable samples carrying the gene of resistance to fusarium, which makes it possible to avoid the labor-intensive selection of resistant lines on inoculated soil.
Adaptive capacity and ecological stability of some bean varieties in the conditions of the western forest-steppe of the Priobie region
Authors: Parkina O. V. , Yakubenko O. E. , Nguyen N. T.
Published: December 2024

Relevance. Crop productivity is determined by genotype, environmental effects and their interactions. Comprehensive evaluation of crop varieties based on their adaptability, plasticity and stability makes it possible to select the most promising varieties, high-yielding and adapted to many environmental conditions to improve productivity.

Materials and Methods. Fourteen common bean varieties were tested in a randomized complete block design with three replications during two years (2022 and 2023) in the experimental field “Michurintsev Garden” of Novosibirsk State Agrarian University. Productivity traits were taken into account: number and weight of beans per plant, weight of 1000 seeds, yield. The purpose of the work was to evaluate bean samples for adaptive capacity and ecological stability in the conditions of the forest-steppe Priobie.

Results. The article provides an assessment of the adaptability and stability of bean varieties in order to identify varieties with high productivity and adapted to climatic and farming conditions in the Siberian region. The results of the tests showed that the highest average net yields of Rubin, Krasnopestraya, Zolotistaya and Muhranula varieties were in the range of 0.41-0.64 kg/m2. Analysis of genotype-environment interaction (GxE) according to the mathematical model of Eberhart and Russel shows that varieties Rubin, Krasnopestraya, Zolotistaya and Muhranula have high indices of general adaptability and breeding value of genotype, Among them, varieties Rubin and Zolotistaya have stable productivity and high adaptability to environmental conditions.
Factors increasing productivity of aubergine under seedless cultivation in irrigated conditions of Astrakhan region
Authors: Gaplaev M. Sh. , Nechaeva S. L.
Published: December 2024

Relevance. To increase the yield of aubergine, a number of agrotechnical methods have been studied. In the conditions of the Astrakhan region, one of the methods is the cultivation of aubergine without seedlings, in which it is very important to select varieties adapted to these conditions, suitable for the duration of the growing season. Cultivation of aubergine without seedling method, in comparison with seedling method, allows to exclude material and technical costs for growing seedlings. To increase the productivity of selected varieties, an important agronomic technique is the use of plant growth regulators that increase plant resistance to unfavourable environmental factors and have a stimulating effect on plant growth and development.

Material and methodology. In conditions of Astrakhan region on alluvial-meadow, medium-loamy soils with granulometric composition were carried out studies to identify varieties that are best adapted to these natural-climatic conditions and give the highest yields in seedless cultivation. In the second experiment on seedless aubergine the effect of growth regulators on plant productivity was studied using preparations - Melafen, BP, Gibbersib, P, Biodux, Zh, Epin extra, R.

Results. On drip irrigation in conditions of Astrakhan region under cultivation by seedless method were studied varietal characteristics of 6 varieties of aubergine with fruits of cylindrical shape, fruit index 4,3-4,4. Among the varieties studied, Almaz and Alekseevsky stood out by the main productivity indicators, forming 6.2-6.6 pieces of fruit per plant with an average weight of 220.7-223.5 g, which provided the formation of yield 42.3-45.8 tonnes/ha. The use of plant growth regulators Melafen, BP and Epin Extra, P on the variety Alexeevsky at the seedless method of cultivation promoted the friendly appearance of shoots, activated growth processes; the number of lateral shoots increased by 1.3-1.5 pieces, the raw above-ground weight of plants was greater by 29.1-34.0 g, the total yield increased by 27.1-34.5%, compared with the control. The varieties most suitable for growing by seedless method and showing the highest yield were identified - Alekseevsky, Almaz. It was found that the use of growth regulators accelerated plant development, increased the height of the main stem and the number of lateral shoots, weight and number of fruits on the plant, which was reflected in plant productivity. Application of growth regulator Epin extra, P allowed to obtain a yield of 52.2 t/ha, which was 34.5% higher than the yield of the control.
Status of mushroom production: global and national scenario
Authors: Devochkina N. L. , Surikhina T. N. , Ivanova M. I.
Published: December 2024

Relevance. Mushroom farming has the potential to be a very profitable agribusiness venture that addresses several contemporary issues such as resource utilization, circular economy. Increasing mushroom production will increase its availability across the country, which will further help reduce food insecurity and also increase the income of small and marginal producers.

Results. Mushrooms have enormous potential for medicinal and nutraceutical purposes. Over the past 20 years, global mushroom production has grown at a CAGR of 8.26%. This average annual growth rate is the highest for the Asian continent. Mainly six species of mushrooms dominate the global production and market, namely shiitake (26%), oyster mushroom (21%), black ear mushroom (21%), button mushroom (11%), flammulina (7%), straw mushroom (1%) and other types (13%). In the Russian Federation, industrial mushroom growing is actively developing. In recent years, 85 enterprises have been opened. The average annual growth rate of fresh mushroom production was 11.7%. Champignons and oyster mushrooms are mainly grown in Russia. Many obstacles faced by mushroom producers, including lack of technical knowledge, inadequate infrastructure, unorganized market, expensive inputs, etc., still need to be addressed through sufficient research and additional legislative solutions tailored to the requirements of Russian mushroom producers. Growing investments in smart automation to improve the efficiency and productivity of cultivated mushroom production involve advanced technologies such as robotics, artificial intelligence and the Internet of Things (IoT).
Understanding Learning Difficulties- Key Factors Impacting Student Success in Teacher Training
Authors: Oprea Bobocea Daniela
Published: December 2024

This article explores the learning difficulties experienced by students preparing to become teachers. The investigation is based on a mixed methodology, both quantitative and qualitative, including a questionnaire, semi-structured interviews with teachers, and an analysis of data from the literature. The research examines several factors that lead to learning difficulties, such as: adaptation to a dense, predominantly theoretical curriculum, the lack of practical educational experience in university settings, developing pedagogical skills alongside academic ones, stress during assessment sessions, or managing the anxiety associated with the role of a future teacher. Initial results of this study suggest that cognitive, emotional, and motivational difficulties are exacerbated by the lack of effective support mechanisms, as well as the existence of dissonance between the pedagogical theory taught and the realities in the classroom. The present research contributes to a better understanding of the specific educational challenges of teacher education. It can form the basis for constructing strategies or recommendations for the adjustment of initial teacher education programs in university education.
Exploring the Relationship between Empathy, Friendliness, and Group Inclusion in Primary School Social Dynamics
Authors: Schipor Doina-Maria , Baru Andreea , Clipa Otilia
Published: December 2024

Empathy plays a pivotal role in fostering harmonious development among children. The present study aimed to explore the relationships among empathy, friendliness, and group inclusion in third and fourth-grade students, as well as to identify factors influencing students' inclusion or exclusion within peer groups. The study involved 78 students from third and fourth grades in two counties in Romania. Data were collected through self-reported questionnaire measuring empathy and friendliness, and a sociometric test to assess group inclusion. The questionnaires were completed under the supervision of a teacher. Quantitative data analysis was processed to validate the relationship between variables. The factors influencing students' inclusion or exclusion within peer groups were identified through qualitative analysis of the recorded responses from the sociometric test. Results revealed positive correlations between cognitive empathy and friendly demeanour, as well as between the level of comfort intention (one dimension of empathy) and inclusion in group activities. Personality traits (such as friendliness, humour, kindness, cheerfulness, creativity) emerged from the qualitative analysis as primary criteria used by children for group inclusion or exclusion. These findings not only inform classroom practice but also contribute to theoretical understanding, with quantitative results confirming findings from previous research. Teachers are encouraged to use these scientifically validated results to address group management issues. Based on these findings, researchers can focus on future investigation of these variables.
ADHD and Text Comprehension: Comparing Virtual Reality and Real-Life Multitasking in an Academic Context
Authors: Chiorean Claudia , Crisan Claudia , Malaiescu Simona , Pavelea Anisoara , Petronikolou Vasileia , Anagnostopoulou Alexandra , Petsani Despoina , Tagaras Konstantinos , Mitsopoulos Konstantinos , Antoniou Panagiotis , Bamidis Panagiotis , Konstantinidis Evdokimos
Published: December 2024

The impact of digital environments on academic performance, particularly among students with ADHD, has become a significant area of study, especially in the wake of increased online learning during the pandemic. This study evaluates how ADHD symptoms affect text comprehension -including accuracy, retention of quantitative and qualitative data, and logical and working memory - within multitasking academic settings in Virtual Reality (VR) and Real Life (VIVO). In our pilot experimental study, we have assessed 30 students (20 in VR and 10 in VIVO) from Greece and Romania. Participants were divided into four groups: a Control and an Experimental group for both VR and VIVO settings. The students were tasked with one (text), two (text and audio), or three (text, audio, and content creation) simultaneous activities to simulate multitasking. We utilized the Adult ADHD Self-report Scale (ASRS) and a grid of text comprehension to measure the impacts. The findings, analyzed through descriptive statistics and non-parametric tests, revealed significant differences (p=.000, χ^2=33.036) in text comprehension based on the environment (VR vs. VIVO), and the presence of ADHD symptoms. Notably, two-thirds of the participants scored above average for ADHD symptoms. Additionally, a comparison of ADHD symptoms scores from pre-tests to post-tests showed a decreasing trend, aligning with existing literature that supports managing ADHD symptoms through psychoeducation. These results underscore the varying effects of multitasking in academic settings on students with ADHD, and highlight the distinct challenges and benefits presented by VR and VIVO learning environments.
Educating for Authenticity? A Discussion of Impression Management in the context of Cross-Neurotype and Cross-Cultural Communication with Possible Implications for Education
Authors: Nica Daniel , Hojbotă Ana-Maria
Published: December 2024

One of the most significant challenges that neurodivergent individuals face is the struggle to maintain a sense of authenticity when confronted with strong pressures to conform to the behaviors and norms expected by the majority. This issue arises in everyday settings, with notable implications healthcare and professional contexts and especially in educational settings. In this paper, we will explore whether a radical shift in the current educational system is necessary to safeguard the authenticity of vulnerable individuals, considering authenticity as a right rather than a privilege. First, we will examine how educational practices often sacrifice the authenticity of autistic students, encouraging them to conform to neurotypical behaviors through masking and impression management techniques. Such approaches can have significant consequences, including heightened stress, emotional exhaustion and suicidality. Similarly, foreign-born students face pressures to assimilate, which can lead to the suppression of their cultural identities and a loss of self. Drawing parallels between the experiences of autistic individuals and immigrants, the paper explores how both groups navigate social spaces that demand conformity to either cultural or neurotypical norms, often at the expense of their authentic selves. In the second part of the paper, we will take into consideration the opportunity and the ethical urgency of possible solutions for preserving the authenticity of minority groups as those we analyze (although parallels and implications can be extended to other marginalized identities), such as incorporating neurodiversity and cultural diversity into the curriculum, adopting more flexible assessment methods, and providing training for educators on recognizing and supporting authentic self-expression. The paper also presents arguments favoring reforming educational settings to preserve authenticity, emphasizing the potential benefits for well-being and equity. However, it balances this perspective by considering the challenges of such reforms, including pushback from administrators, acknowledging the need to prepare students to navigate broader social norms as long as the social spaces are dominated by neuronormativity, and the practical difficulties of implementing systemic changes. Ultimately, the paper highlights the complexity of the issue and calls for a nuanced approach to fostering authenticity in education.
The Importance of Hiking and Mountain Trips in Leisure and Extracurricular Activities of Students – Part 2/ Interpretation of the Utility and Effects-financial Accessibility Components
Authors: Mocanu George-Danut , Szabo Dan Alexandru , Parvu Carmen
Published: December 2024

Background and Study Purpose: Physical activities in the mountain environment are recognised for their multiple benefits on health, fitness levels, stress reduction and communication. The research aims to identify differences in the usefulness, effects, and affordability of trips and hiking for pre-university students. Material and Methods: The sociometric research investigated a group of 647 students. A 3-component structured questionnaire based on closed-ended items with five levels investigated students' responses to the usefulness and financial effects/financial accessibility of trips and hiking. Results: We obtained the gender difference for all utility factor items, with higher scores attributed to females. Gender differences were also significant in favour of females for the effects/accessibility factor, except affordability (P>0.05). The F-values for the rural-urban difference are all significant and in favour of rural students for both components, except affordability, which is higher for urban. Conclusions: At the level of the utility component, the highest scores are obtained by the items associated with the level of health, socialization group integration, and personality formation. For the effects component, high scores are obtained for items associated with stress reduction/recreation, then optimising endurance and fitness levels. Financial accessibility of trips and hiking scores lower, with only 50% of students perceiving them as affordable and very affordable. Rural students have higher values of confidence in the usefulness of hiking vs. urban students, and this is maintained for the effects component items, the only exception being for financial accessibility, where urban has significantly better values than rural.
The Effect of Practicing Taekwondo on Some Psychomotor Characteristics of Medical Students
Authors: Mircica Maria Liliana , Păunescu Cătălin , Paunescu Teodor
Published: December 2024

The profession of a doctor is a noble, demanding one, which involves many responsibilities and risks, but also a good knowledge of one's own body scheme, which involves motor adjustments that depend on mental activity. Through its content, the taekwondo course contributes to the knowledge, improvement and completion of specialized knowledge about the human body, its reactions to different stimuli and in complex moments, it can also contribute to the enrichment of knowledge about one's own reactions in extreme cases and their correction in favorable situations. Thus, practicing taekwondo in an organized setting helps us develop our coordination, neuromuscular elasticity, balance, agility, spatial-temporal orientation, effort capacity. In this sense, the research was carried out within the "Carol Davila" University of Medicine and Pharmacy on the groups that chose to take the taekwondo course. Purpose: This research wants to statistically highlight the effects of taekwondo, on some psychomotor characteristics, for medical students. Methods: The research was carried out on 130 students, who opted for the basic course in the sports branch of taekwondo, they had not previously practiced another sport in an organized setting, with height (168.35±6.97cm), weight (59.12 ±9.57 kg) and age (20.6±1.56 years). In carrying out this research, the test RCM1 (Complex Motor Reactivity 1) was used, administered as part of the initial test, at the beginning of the course in the first year, in the final test, at the end of the second year of study. Results: after processing the data, it emerged that taekwondo practiced in the basic course by medical students offers an increase in the indices of psychomotor characteristics by an average of 34.62%.
Sports, Tourism and Leisure Activities – Factor for Integrating Foreign Students in the University Environment
Authors: Lesco Victoria , Onoi Mihail , Razmiret Victoria , Lungu Ecaterina
Published: December 2024

The integration of foreign students into the university environment is a crucial aspect for their academic and personal development. The aim of the research is to highlight the importance of sport, tourism and leisure activities in facilitating the integration process of foreign students in the university environment. From a theoretical perspective, our study highlights how sport, tourism and leisure activities interact to influence the various social identities of foreign students. On a practical level, the research proposes solutions for universities to capitalize on sport activities in facilitating social interactions between students from different cultures and to support international students to perceive themselves as important members of the university community. By engaging in a variety of physical, tourism and leisure activities, foreign students will maintain their health, will improve their mental stress and will cope better with the specific pressures of a socio-cultural and economic crisis, being able to increase their confidence and self-esteem, developing physical and social skills in an environment that supports and motivates them. Also, participating in the proposed activities will help reduce the feeling of isolation and loneliness, giving them an environment where they will form social bonds and friendships.
Civic Power in Just Transitions: Blocking the Way or Transforming the Future?
Authors: Marin Anabel , Palazzo Gabriel
Published: December 2024

As the global shift towards a low-carbon economy accelerates, demand for critical minerals is projected to soar, intensifying pressures on supply chains and local environments. Policies like the European Union’s Critical Raw Materials Act and the U.S. Inflation Reduction Act are increasingly proposed to secure mineral access while upholding environmental standards and reducing ecological impacts. However, mining activities face significant civil resistance worldwide. This paper reveals that opposition to mineral extraction is a pervasive global phenomenon, spanning diverse sociopolitical contexts and posing major challenges for the political sustainability of the energy transition. Using data from the Global Database of Events, Language and Tone (GDELT) Project, we map patterns of conflict and cooperation in mining regions globally, providing an unprecedented systematic overview of impacts and underlying economic, environmental, and justice-related drivers. Our findings indicate that many conflicts reach high levels of polarisation, which, as case studies show, often lead to costly delays or project cancellations. Although cooperation frequently arises alongside conflict, high-commitment cooperative actions remain limited in impact and uncertain in their ability to drive meaningful change. We argue that a just, sustainable, and democratic transition requires moving beyond traditional Corporate Social Responsibility approaches and recent proposals for public participation in Environmental Impact Assessments. Instead, it demands deeper democratisation of investment decisions through inclusive governance frameworks that can effectively navigate the complexities of mineral resource extraction.
A MITIKUS ANYAG SZÍNPADI ÚJRAJÁTSZÁSAI
Authors: BARTHA Katalin Ágnes
Published: December 2024

Vörösmarty Mihály Árpád ébredése című alkalmi darabját a Pesti Magyar Színház megnyitóján mutatták be 1837 augusztusában. A cselekmény szerint a felébresztett mitikus honalapító Árpád úgy szembesül a halála utáni ezeréves helyi átalakulások történetével, hogy a korabeli nemzeti, morális és liberális politikai színház eszméjét megértve ennek harcos képviselője lesz, megmentve a Színésznőt a korabeli színházeszmény ellenségeit képviselő allegorikus alakoktól. A dolgozat a bemutató performatív erejének és hatásának kulcsait, illetve a bemutatót követő 19. és 20. századi pesti újrajátszások, átiratok és folytatások megvalósulásait (1862, 1887, 1927, 1937) vizsgálja a Diana Taylor-i írott és megtestesült kultúra fogalmak segítségével. A dolgozat a megtestesült gyakorlatok, a színpadi átadási módok és az archívumokban fellelt bizonyítékok révén arra fókuszál, hogy a különböző történelmi időszakokban hogyan teremtődnek színpadi hagyományok, mindezeket hogyan kezdik ki, illetve hogyan alakulnak ki újak változó kontextusokban.
DIGITÁLIS TRANSZFORMÁCIÓ, MESTERSÉGES INTELLIGENCIA ÉS OKTATÁS
Authors: TÓTH Ágota , NÁMESZTOVSZKI Zsolt , HORVÁTH FUTÓ Hargita
Published: December 2024

A 21. században a digitális technológia térnyerése új tanulási környezetet hozott létre, és olyan lehetőségeket biztosít a tanítási-tanulási folyamatban, amelyekre a hagyományos tantermi oktatás keretében nem volt lehetőség. Pedagógiai módszertani váltás is zajlik, s módosul a tanári szerep, az információs társadalom pedagógusa mentor, aki a diák tanulását és fejlődését segíti a piacképes, gyakorlati tudás megszerzése érdekében. A fejlődést nem lehet megállítani, ezért fontos a tanárok innovációra való nyitottsága, és azoknak a módoknak a megtalálása, amelyekkel az oktatás és nevelés szolgálatába, azaz a tantermi gyakorlatba állíthatók az információs társadalom új eszközei (a mesterséges intelligencia alapú chatbotok, fordítóprogramok, képgenerálók stb.).