bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the flexural behavior of polypropylene fiber reinforced concrete beams with hybrid reinforcement of GFRP and steel bars
Authors: Wei Bingyan , He Xiongjun , Wu Weiwei , Wu Chao , He Jia
Published: April 2024

To study the flexural behavior of glass fiber (GFRP) bars and steel bars hybrid reinforced polypropylene fiber concrete (Hybrid-PFRC) beams, one GFRP-PFRC beam, one Steel-PFRC beam, and five Hybrid-PFRC beams were designed and fabricated. The effects of the different area ratio ($${{A_{f} } \mathord{\left/ {\vphantom {{A_{f} } {A_{s} }}} \right. \kern-0pt} {A_{s} }}$$

A
f

/

A
s

) of GFRP to steel bars and polypropylene fiber (PP) volume fraction on the flexural behavior of Hybrid-PFRC beams were investigated through experiments. The research results indicated that the Hybrid-PFRC beams’ load–deflection curves exhibited trilinear characteristics with specimen cracking and steel bars yielding as turning points. As $${{A_{f} } \mathord{\left/ {\vphantom {{A_{f} } {A_{s} }}} \right. \kern-0pt} {A_{s} }}$$

A
f

/

A
s

increased, the flexural bearing capacity of Hybrid-PFRC beams increased, the deflection decreased, the crack spacing and width decreased, and the ductility decreased. The addition of PP did not significantly improve the flexural bearing capacity and cracking moment of Hybrid-PFRC beams, but it greatly enhanced the ductility of the beam. Moreover, PP had good advantages in controlling crack propagation in the beam. The article also used the theoretical model to predict and analyze the flexural behavior of Hybrid-PFRC beams. When predicting the maximum crack width of Hybrid-PFRC beams, when PP is not added to the beam, the bonding coefficient kb should be greater than 1.4; When PP is added to the beam, it is recommended that the bonding coefficient kb should not exceed 1.4.
A Multi Criteria Decision Making approach to integrate Gamification in Education
Authors:   Department of Applied Mathematics and Computational Science, Thiagarajar College of Engineering, Madurai, S Srimathi , D Anitha ,   Department of Applied Mathematics and Computational Science, Thiagarajar College of Engineering, Madurai
Published: April 2024

Abstract—The use of modern technologies and digital environments in the classroom creates new opportunities for the teaching and learning process. Gamification is one of them. Student engagement through different gamified assessment activities is one of the proven advantages of gamification, and hence, research in education has accepted gamification as a technical innovation to boost student engagement. Educators recognize that assessments are a fundamental part of learning because they help them determine whether or not educational goals are being achieved. Currently, there are numerous online assessment applications that integrate gamification that are available and readily accessible, among which certain applications are more popular in the academic community. Every application has common and unique features, which makes it very difficult for the instructor to choose the best application for assessment using gamification. The proposed research work identified four different popular gamification applications (Quizizz, Kahoot, Socrative and Quizwhizzer) and compared six different features of them to find the best gamification application for assessing student performance. To address the objective of the research, this study uses the Analytic Hierarchy Process (AHP) method, one of the well-known Multi-Criteria Decision Making (MCDM) techniques. The study implements MCDM with six different criteria, where each criterion is addressed by more than three subcriteria. The study's findings demonstrate that Quizwhizzer is the best gamification application for assessing student performance. The research study also extends the analysis to the selective needs of the instructors on these platforms. Keywords— Gamification in Education; Quizizz; Kahoot; Quizwhizzer; Socrative; MCDM-AHP.
An Experiential Learning Approach for Enhancing Performance of First Year Engineering Students in Engineering Graphics Course
Authors:   Department of Mechanical Engineering Department, RIT Sakharale, Sangli, Maharashtra, 414415 India., Gunjavate P. V. , Sawant S. N. ,   Department of Mechanical Engineering Department, RIT Sakharale, Sangli, Maharashtra, 414415 India., Kadam S. V. ,   Department of Mechanical Engineering Department, RIT Sakharale, Sangli, Maharashtra, 414415 India.
Published: April 2024

Abstract— Engineering Drawing is a crucial and mandatory course for first-year engineering students. This subject plays a vital role in enhancing students' ability to visualize, imagine, and effectively illustrate concepts. It aids them in expressing their ideas clearly and swiftly, comprehending drawings produced by others, and devising effective designs. The curriculum covers essential topics like projection, sectioning, and the development of solids such as prism, pyramid, cylinder, cone, cube, and tetrahedron. These topics help students develop the ability to conceptualize, visualize, and create drawings according to specific requirements. The achievement of learning outcomes related to these subjects is hindered by the challenges faced by first-year engineering students, including their lack of fundamental knowledge in technical drawing and limited abilities in imagination and visualization. As a result, their performance in these areas tends to be subpar. To address this issue, a practical "learning by doing" approach is introduced alongside traditional classroom instruction. This strategy aims to boost the visualization, imagination, and technical drawing proficiency of first-year engineering students. This article outlines the author's endeavors to enhance students' visualization, imagination, and drawing skills. The focus is on involving students actively in both classroom and extracurricular learning. By methodically incorporating a "learning by doing" approach, there has been a notable enhancement in student engagement, achievement of course objectives, and overall performance in the course assessments. The topic of development of solids was completely taught with this method. This activity resulted increase in the CO attainment, active participation and engagement of the students in the class room as well as outside of the classroom. Following the implementation of this activity, there was a substantial rise of 17.30% in the accomplishment of course outcome, coupled with a notable increase of 25.34% in the students' learning index. Keywords— Course Learning Outcome, Engineering Graphics, learning by doing
Augmenting Freshman Rural Engineering Students’ Interaction in English Language using Task Based Language Teaching (TBLT)
Authors:   Department of Humanities and Social Sciences, SMSR, KLE Technological University, Hubballi 580032, Shinge Jayanti , Kotabagi Sanjay ,   Research Guide, KLE Technological University, Hubballi, 580032
Published: April 2024

Abstract— Today’s engineer constantly delivers on both national and international work fronts which gives interaction in English language a key role. This requires teachers to work on their interaction abilities especially for the students who come from rural background. It has been observed that rural students find it difficult to get acclimatized and comfortable with the usage of grammatical concepts in real time situations. This observation necessitates researchers to cater to the needs of these students through proper pedagogical interventions for continuous improvement. Over the years many researchers have used many theories and approaches to enhance interaction skills of rural students but these studies have given temporary solution. Here lies major lacuna thus the current study focuses on how rural freshman engineering students’ interaction can be augmented with the Task based language teaching approach. TBLT is an approach that emphasizes the learning of language through the completion of meaningful tasks. It is based on the belief that language is best learned when it is used to complete a real-world task. It provides students with immersive and engaging learning environment and promotes the practical and effective use of language in real-life situations. The study uses quantitative research approach. A sample of 35 rural freshman students of Technological University is obtained and analyzed. Based on the Pre-Intervention Test and the Post-Intervention Test the results reveal that TBLT strongly augments rural students’ interaction in English language using CEFR’s Common Reference Levels: Self- Assessment Grid. After the intervention, students were requested to evaluate their performance using the assessment grid once again. Encouragingly, there was a clear indication of improvement in their self-assessment outcomes. Keywords—Interaction; Engineers; Pedagogical Intervention; Task Based Language Teaching.
Image-e-cation: An Image-Centric Solution to Cross-Cultural Healthcare Communication
Authors:   School of Computer Science and Engineering, KLE Technological University, Hubli, Chitragar Veerraj Satish , Pawale Shailesh ,   School of Computer Science and Engineering, KLE Technological University, Hubli, Chickerur Nidhi S ,   School of Computer Science and Engineering, KLE Technological University, Hubli, Amashi Radhika ,   Center for Engineering and Education and Research, KLE Technological University, Hubli, M Vijayalaxmi ,   School of Computer Science and Engineering, KLE Technological University, Hubli
Published: April 2024

Abstract— Effective communication plays a vital role in healthcare especially between the nurses and patients who are the primary stakeholders in the healthcare sector. However, language barriers can create communication difficulties leading to miscommunicat - ion and misunderstandings. To address this issue, we have developed a mobile application to facilitate communication through images as a part of a first-year course named “Design thinking for Social Innovation ''. It features a wide range of images and diagrams that can be used to illustrate various medical conditions. The app heavily relies on visual diagrams like body diagrams (to identify the area of discomfort), when (referring to the number of days the patient is suffering from the particular medical condition or disease), problem duration (selecting a period in a day when the patient feels the pain is more), pain scaling illustrations (depicting the level of pain on a scale of 1 to 10) and to choose if they have any allergies. The app has a simple User Interface for patients to use. The Design Thinking Methodology was used to build the project starting from gathering requirements to developing a solution. The results of the study highlight that the solution can become a product to help nurses or any healthcare professionals diagnose and treat their patients more accurately, resulting in better patient outcomes. Keywords—Enter Cross-cultural communication, Language Barrier, Design Thinking, Application, Awareness.
Analysis of Innovation and Performance Relationships of Companies Serving in the Information and Communication Sector
Authors: Celikyay Mehmet , Sonmez Cakir Fatma , Adiguzel Zafer
Published: April 2024

Objective. Explorer the relationship between strategic orientation, Porter’s generic competitive strategy, innovative capacity of firm, and products technical performance in the Turkish ICT —Information and Communication Technology— sector. Methodology.This study employed a quantitative research design in which 573 questionnaires applied to people who work in various ICT companies located in Turkey. The research data were examined using mediation effect and path analysis techniques. SmartPLS version 3.2 was used for the abovementioned analyses. Results. The findings revealed a positive and significant correlation between strategic orientation with the innovative capacity of firms and the products technical performance. The results also indicate that Porter’s generic competitive strategies play a mediating role in the relationships between strategic orientation, innovative capacity of firms, and products technical performance. Conclusions. The importance of integrating strategic orientation and competitive strategies in order to innovative capacity of firms or products technical performance is concluded, particularly in ICT companies.
Integrating Artificial Intelligence into Citizens’ Assemblies: Benefits, Concerns and Future Pathways
Authors: McKinney Sammy
Published: April 2024

Interest in how Artificial Intelligence (AI) could be used within citizens’ assemblies (CAs) is emerging amongst scholars and practitioners alike. In this paper, I make four contributions at the intersection of these burgeoning fields. First, I propose an analytical framework to guide evaluations of the benefits and limitations of AI applications in CAs. Second, I map out eleven ways that AI, especially large language models (LLMs), could be used across a CAs full lifecycle. This introduces novel ideas for AI integration into the literature and synthesises existing proposals to provide the most detailed analytical breakdown of AI applications in CAs to date. Third, drawing on relevant literature, four key informant interviews, and the Global Assembly on the Ecological and Climate crisis as a case study, I apply my analytical framework to assess the desirability of each application. This provides insight into how AI could be deployed to address existing  challenges  facing  CAs  today  as  well  as  the  concerns  that  arise  with  AI  integration.  Fourth, bringing my analyses together, I argue that AI integration into CAs brings the potential to enhance their democratic quality and institutional capacity, but realising this requires the deliberative community to proceed cautiously, effectively navigate challenging trade-offs, and mitigate  important concerns that arise with AI integration. Ultimately, this paper provides a foundation that can guide future research concerning AI integration into CAs and other forms of democratic innovation.
Устойчивое развитие минерально-сырьевой базы Свердловской области — одно из приоритетных направлений экономической безопасности региона
Authors:   Institute of Economics of the Ural Branch of RAS, Polyanskaya I. G. , Yurak V. V. ,   Institute of Economics of the Ural Branch of RAS, Maslennikov V. V. ,   Institute of Economics of the Ural Branch of RAS
Published: April 2024

The regulatory and legislative framework for the mineral resource sector is quite developed. However, there are still questions regarding ensuring the economic security of the entire industrial sector of the Russian Federation, where subsoil use is first in the supply chain. The article aims to examine the mineral resource base in the Sverdlovsk region through the prism of legal and resource support, as well as to identify key areas for its development. The methods of systematization, analysis, synthesis, analogy, comparison, grouping, as well as mathematical statistics were applied. An analysis of the legal and resource support for the development of the mineral resource base of the Sverdlovsk Region revealed a growth trend in terms of shipped products for the period from 2005 to 2021. Simultaneously, the following problems were observed: depletion of the resource base; personnel problem, including low labor productivity in comparison with world indicators; technical and technological backwardness; dependence on foreign software. As a result, the article proposes the main directions for the development of the mineral resource base in the Sverdlovsk region.
Environmental Damage Assessment based on the Expedition Research Results
Authors:   Institute of Economics of the Ural Branch of RAS, Pochechun V. A. ,   Ural State Mining University, Makarov Ya. A. ,   Ural State Mining University, Kabakova T. N. ,   Institute of Economics of the Ural Branch of RAS, Kurbanov I. K. ,   Ural State Mining University, Fominykh A. A. ,   Institute of Economics of the Ural Branch of RAS
Published: April 2024

On the territory of three regions of the Ural Federal District — Sverdlovsk, Chelyabinsk and Kurgan regions — 4.2 thousand objects have a negative impact on the environment. The Ural industry is one of the most powerful in Russia. Energy, mining, ferrous and non-ferrous metallurgy enterprises are the main polluters of environmental objects in the Sverdlovsk region. Additionally, in large cities, motor transport makes a big contribution to air pollution. As a result of the activities of enterprises, all environmental objects (natural waters, atmospheric air, soils) are harmed. Depending on the amount of damage caused, economic losses in the form of economic, social and environmental losses of society and nature are calculated. The calculation of such losses is extremely important and relevant at present for the industrial Ural. Analysis of economic losses caused to society and nature by industrial enterprises can help assess the amount of damage in value terms during the implementation of economic activities, adequately develop effective environmental protection measures and prevent man-made industrial hazards. Thus, the assessment of the real magnitude of economic losses from environmental violations is necessary for examining the overall efficiency of the economy, selecting investment projects, and implementing the principles of environmental insurance.
Anthropogenic Load on Water Resources: Example of the Ural Federal District
Authors:   Mining Institute of the Ural Branch of RAS, Slavikovskaya Yu. O. ,   Institute of Economics of the Ural Branch of RAS
Published: April 2024

Water resources, which are the basis of life, are greatly affected by anthropogenic impacts as a result of human economic activity. In order to develop directions for their rational and environmentally safe use, it is necessary to assess the anthropogenic impact on this type of resources, as well as the effectiveness of environmental activities. Using the example of the Ural Federal District, the article provides the results of an analysis of the effectiveness of water resources use and the ongoing water protection activities based on official statistics over the past twenty years.
Structure and mechanical properties of PR-03N18K9M5TYu steel grade fabricated by selective laser melting and post-processing
Authors: Kayasova A. O. , Baskov F. A. , Lobova T. A. , Levashov E. A.
Published: April 2024

We fabricate samples of PR-03N18K9M5TYu steel (equivalent to ChS4) using selective laser melting (SLM) in a nitrogen atmosphere. Our research focused on the influence of hot isostatic pressing (HIP) combined with heat treatment (HT), specifically hardening and aging, on the steel's structure and its physical and mechanical properties (σucs, σys, δ, ψ). Through tensile testing, we evaluated the impact of post-processing treatments (HIP followed by HT) on the material's strength. We also assessed how different post-processing protocols affected residual porosity. Our findings indicate that samples exhibiting the highest strength and plastic properties correspond to those with the least structural defects and minimal residual porosity. In-depth microstructural analysis revealed that the optimal structure–a fine-grained, homogeneous configuration–is achieved via the combined application of SLM, HIP, and subsequent HT. The improvement in mechanical properties can be primarily attributed to the dispersed hardening effect, which is a consequence of the precipitation of the superfluous Ni3Ti phase. Fractographic examination revealed that the post-processing leads to a ductile and dimple fracture, occurring through mechanisms of shearing and detachment, giving rise to mixed-type fractures. The samples that displayed superior mechanical properties were characterized by a homogenous ductile intergranular fracture surface with clear evidence of plastic deformation. We measured the hardness (Н), modulus of elasticity (Е), and elastic recovery via indentation methods. The post-processing treatments notably enhanced material hardness and elastic modulus, with an increase from H = 4.6 GPa and E = 194 GPa in the sample post-HIP to H = 8.5 GPa and E = 256 GPa following HIP coupled with hardening and aging.
Exploring 3D printing with magnetic materials: Types, applications, progress, and challenges
Authors: Konov G. A. , Mazeeva A. K. , Masaylo D. V. , Razumov N. G. , Popovich A. A.
Published: April 2024

3D printing, also known as additive manufacturing (AM), represents a rapidly evolving technological field capable of creating distinctive products with nearly any irregular shape, often unattainable using traditional techniques. Currently, the focus in 3D printing extends beyond polymer and metal structural materials, garnering increased attention towards functional materials. This review conducts an analysis of published data concerning the 3D printing of magnetic materials. The paper provides a concise overview of key AM technologies, encompassing vat photopolymerization, selective laser sintering, binder jetting, fused deposition modeling, direct ink writing, electron beam melting, directed energy deposition and laser powder bed fusion. Additionally, it covers magnetic materials currently utilized in AM, including hard magnetic Nd–Fe–B and Sm–Co alloys, hard and soft magnetic ferrites, and soft magnetic alloys such as permalloys and elect­rical steels. Presently, materials produced through 3D printing exhibit properties that often fall short compared to their counterparts fabricated using conventional methods. However, the distinct advantages of 3D printing, such as the fabrication of intricately shaped individual parts and reduced material wastage, are noteworthy. Efforts are underway to enhance the material properties. In specific instances, such as the application of metal-polymer composites, the magnetic properties of 3D-printed products generally align with those of traditional analogs. The review further delves into the primary fields where 3D printing of magnetic products finds application. Notably, it highlights promising areas, including the production of responsive soft robots with increased freedom of movement and magnets featu­ring optimized topology for generating highly homogeneous magnetic fields. Furthermore, the paper addresses the key challenges associated with 3D printing of magnetic products, offering potential approaches to mitigate them.
Additive technology for forming multi-material samples of “stainless steel – high-entropy alloys” system
Authors: Masaylo D. V. , Repnin A. V. , Popovich A. A. , Razumov N. G. , Mazeeva A. K.
Published: April 2024

The Metal Paste Deposition (MPD) method offers several advantages in producing multi-materials compared to other additive technologies. While there have been studies conducted on multi-material production using this method, they are limited. Hence, a significant objective is to expand the research scope concerning multi-materials produced through the MPD method. This study aimed to examine samples of multi-material systems comprising 316L steel with CoCrFeMnNiW0.25 and 316L steel with CrMoNbWV obtained from metal paste. The investigation involved forming multi-material samples and analyzing the porosity, microstructure, phase composition, and hardness of the 316L steel metal paste after sintering. The findings lead to several conclusions: when forming multi-material samples of the 316L–CoCrFeMnNiW0.25 system, there is no necessity to create a transition zone using mixed 316L steel and CoCrFeMnNiW0.25 powders, as these alloys mix strongly within it. However, in the 316L–CrMoNbWV system, forming a transition zone of mixed powders is necessary to mitigate the effects of uneven shrinkage. Altering the sintering modes for multi-material samples of the 316L–CoCrFeMnNiW0.25 system is recommended; the temperature should be reduced by 30–45 °C compared to the sintering modes for 316L steel. After sintering the metal paste derived from 316L steel, the resulting sample exhibits large and small spherical pores. To minimize these defects, degassing can be employed. Additionally, reducing porosity can be achieved through hot isostatic pressing post-sintering. The microstructure following the sintering of the metal paste from 316L steel consists of coarse austenite grains with minimal ferrite accumulation at the grain interface.
Simulating multi-material specimen manufacturing from VZh159 and CuCr1Zr alloys via SLM method: Computational modeling and experimental findings
Authors: Orlov A. V. , Repnin A. V. , Farber E. M. , Borisov E. V. , Popovich A. A.
Published: April 2024

Manufacturing of multi-material products through layer-by-layer synthesis poses various challenges encompassing process parameter optimization, equipment calibration, and the mitigation of warping and internal stresses within the manufactured parts. The article investigates the feasibility of simulating the selective laser melting (SLM) process for manufacturing multi-material components, exemplified through specimens composed of the VZh159 nickel alloy and CuCr1Zr copper alloy. The study entails numerical simulations of the printing process, which were then validated against real specimens produced through SLM. Each test specimen was vertically divided into three parts: the top and bottom sections consisted of the VZh159 alloy, while the central part was composed of the CuCr1Zr alloy. Simulations involved using identical process parameters as employed in the printing process. Thermal and mechanical analyses for each part of the multi-material specimen were sequentially addressed, transferring the outcomes of the preceding analysis as initial conditions for subsequent calculations. The study concludes that while the obtained simulation results are indicative, they do not precisely capture the deformation observed in the specimens manufactured via the SLM method. The numerical values of deformations derived from simulation results slightly underestimate the actual deformations, attributed to limitations in the chosen calculation algorithms. For future utilization of numerical computer simulation in the SLM manufacturing of multi-material specimens, the study suggests the necessity of implementing a seamless, continuous simulation process without transitions between different parts of the specimen. This entails considering the entire manufacturing process without segregating sections, ensuring a comprehensive account of continuous deformation and stress accumulation throughout fabrication.
Application of curd whey in technology OF SAUSAGE PRODUCTS with fish component as a direction for the rational use of SECONDARY food raw materials
Authors:   Kamchatka State Technical University, Efimov А.А. , Мustafaeva V.М. ,   Kamchatka State Technical University, Efimova M.V. ,   Kamchatka State Technical University
Published: April 2024

In this paper, we discuss the use of whey in food technologies. We discuss the feasibility of production by enterprises from Kamchatka Territory of products using whey as a secondary raw material and benign fish food waste from fillet. Introduction of these components into food compositions in the production of sausage products will provide the opportunity to implement the principle of rational use of biological resources and will expand the range of products that are in demand by consumers. Data from a study of methods for introducing curd whey into the minced meat mixture for the preparation of sausage products are presented. It has been shown that achieving high consumer (organoleptic) properties of the finished product is ensured by introducing whey into minced meat in the form of a suspension. The dependence of the taste and aroma properties and consistency of products on the amount of curd whey introduced into the recipe composition is characterized.
SIZE аnd WEIGHT COMPOSITION AND MORPHOLOGICAL CHARACTERISTICS OF THE NINE-SpineD Stickleback PUNGITIUS PUNGITIUS (GASTEROSTEIDAE) FROM Lake Prilivnoe (SOUTHEASTERN KAMCHATKA) during WINTER 2022–2023
Authors:   Kamchatka Branch of Pacific Geographyсal Institute of the Far Eastern Branch of the Russian Academy of Sciences, Grigorev S.S.
Published: April 2024

Size-weight composition and morphology of the nine-spined stickleback Pungitius pungitius from Lake Prilivnoe (southeast of Kamchatka) from December 2022 to March 2023 were studied. The average length of fish in 4 months increased from 30.5 to 55.3 mm, and the average individual weight of fish increased from 0.5 to 2.1 g, respectively. The largest scatter of data was observed for the anteanal, antepectoral, antedorsal and anteventral distances, the length of the caudal peduncle and the length of the head. As body length increases relative to body length, head length, anteanal distance, and antepectoral distance increase. The antedorsal distance, anteventral distance and the length of the caudal peduncle decrease with growth relative to the standard body length. As a result of the research, the variability of the morphological characteristics of the nine-spined stickleback that lives in this reservoir and is caught in one place.
СОСТАВ ВИТАМИНОВ ГРУППЫ В В ЛИСТЬЯХ ОБЛЕПИХИ КРУШИНОВИДНОЙ
Authors:   Воронежский государственный университет, КОВАЛЕВА Н.А. , ТРИНЕЕВА О.В.
Published: April 2024

Облепиха крушиновидная (Hippophaë rhamnoides L.) - многолетний двудомный ягодный кустарник сем. Лоховые (Eleagnaceae). В медицинской практике широко применяются плоды облепихи крушиновидной. Листья используются в народной медицине. В литературе имеются отдельные разрозненные данные о содержании в листьях витаминов группы В - тиамина и рибофлавина. Целью исследования являлось определение витаминов группы В в листьях облепихи крушиновидной методом капиллярного электрофореза. К моменту сбора урожая плодов, в листьях накапливается большее количество рибофлавина. Листья в данный период не являются источником тиамина и холина.
СРАВНИТЕЛЬНОЕ ИЗУЧЕНИЕ АМИНОКИСЛОТНОГО ПРОФИЛЯ НАЗЕМНОЙ И ПОДЗЕМНОЙ ЧАСТЕЙ ЛАБАЗНИКА ВЯЗОЛИСТНОГО, ПРОИЗРАСТАЮЩЕГО В ВОРОНЕЖСКОЙ ОБЛАСТИ
Authors:   Воронежский государственный университет, КОРЕНСКАЯ И.М. , ШТЕЛЬМАШЕНКО А.А. , КОЛОСОВА О.А. , ИЗМАЛКОВА И.Е.
Published: April 2024

Методом капиллярного электрофореза определен качественный состав и количественное содержание аминокислот (АМК) растения Лабазника вязолистного (Filipendula ulmaria (L.) Maxim.), семейство розовые (Rosaceae), произрастающего на территории Воронежской области. Показано, что больше всего суммарно аминокислот содержится в листьях лабазника вязолистного - 7,35 %, в корнях - 4,8 %, в цветках - 3, 58 %. При этом отмечено высокое содержание в листьях и цветках растения лейцина+изолейцина, пролина, глутаминовой и аспарагиновой кислот, в корнях - валина, аргинина, глутаминовой кислоты.
СОВРЕМЕННАЯ ХИМИЧЕСКАЯ КЛАССИФИКАЦИЯ ФАРМАКОПЕЙНЫХ РАСТЕНИЙ КАК МЕТОДОЛОГИЧЕСКАЯ ОСНОВА СТАНДАРТИЗАЦИИ ЛЕКАРСТВЕННОГО РАСТИТЕЛЬНОГО СЫРЬЯ
Authors:   Самарский государственный медицинский университет, КУРКИН В.А.
Published: April 2024

В настоящей работе рассматриваются актуальные аспекты современной химической классификации фармакопейных растений. Обосновано, что химическая классификация лекарственного растительного сырья имеет фундаментальное значение для фармакогнозии и фармации в целом в плане совершенствования стандартизации лекарственного растительного сырья и лекарственных растительных препаратов, а также разработки методик анализа для новых видов сырья. Показано, что химическая природа биологически активных соединений должна рассматриваться как методологическая база в плане разработки новых подходов к стандартизации лекарственного растительного сырья и лекарственных растительных препаратов. В работе обсуждаются также зависимости физических, химических, спектральных и фармакологических свойств от химической природы биологически активных соединений, используемых в качестве критерия подлинности и качества сырья и фитопрепаратов. В работе обсуждаются современные тенденции развития фармакогнозии, нашедшие отражение в Государственной фармакопее Российской Федерации XIV издания.
БИОЛОГИЧЕСКАЯ АКТИВНОСТЬ 10-ГИДРОКСИ-Д2-ДЕЦЕНОВОЙ КИСЛОТЫ И ЕЁ ХРОМАТО-МАСС-СПЕКТРОМЕТРИЧЕСКОЕ ОПРЕДЕЛЕНИЕ В ПРОДУКТАХ ПЧЕЛОВОДСТВА
Authors:   Государственный гуманитарно-технологический университет, ПОМАЗАНОВ В.В. , КИСЕЛЕВА В.А. , МАРДАНЛЫ С.Г.
Published: April 2024

Целью исследования являлось определение наличия 10-гидрокси-Л2-деценовой кислоты в продуктах пчеловодства с использованием метода газовой хроматографии с масс-спектрометрическим детектором.
МИКРОСКОПИЧЕСКИЕ ИССЛЕДОВАНИЯ ЦВЕТКОВ РУДБЕКИИ РАССЕЧЕННОЙ (RUDBECIA LACINIATA)
Authors:   Иркутский государственный медицинский университет, ПОСОХИНА А.А. , ПРИВАЛОВА Е.Г. , РЯБОВА А.А. , АРУТЮНЯН С.М.
Published: April 2024

В данной работе приведены результаты микроскопического исследования рудбекии рассеченной цветков, определены анатомодиагностические признаки сырья. Показана возможность дальнейшего изучения и внедрения в медицинскую практику данного растения.
КОЛИЧЕСТВЕННОЕ ОПРЕДЕЛЕНИЕ АНТОЦИАНОВ В ЛИСТЬЯХ АРОНИИ МИЧУРИНА
Authors:   Воронежский государственный университет, ПУГАЧЕВА О.В. , ТРИНЕЕВА О.В. , ПАНОВА К.Е.
Published: April 2024

Листья Аронии Мичурина или рябины черноплодной - широко культивируемого кустарника рода Арония, являющегося гибридом аронии черноплодной и рябины обыкновенной, в отличие от плодов практически не изучены на предмет фитохимического состава. Проведенные предварительные исследования показали, что в листьях присутствуют антоцианы в лейкоформах. Целью исследования являлось количественное определение антоцианов в листьях аронии Мичурина. Объектом исследования служили высушенные листья аронии Мичурина сорта «Мулатка». Количественное определение проводили спектрофотометрическим методом при длине волны 540±2 нм в пересчете на цианидин-3-О-глюкозид. В качестве оптимального выбрано соотношение «сырье:экстрагент» 1:250. Содержание антоцианов в листьях аронии Мичурина в пересчете на цианидин-3-О-глюкозид составило 9,47±0,78%. Таким образом, подтверждена перспективность листьев аронии Мичурина как источника биологически активных веществ (БАВ).
КАЧЕСТВЕННОЕ ОПРЕДЕЛЕНИЕ НЕКОТОРЫХ ГРУПП БИОЛОГИЧЕСКИ АКТИВНЫХ ВЕЩЕСТВ В ЛИСТЬЯХ ПЛЮЩА ОБЫКНОВЕННОГО
Authors:   Воронежский государственный университет, СОЛОДУХИНА А.А.
Published: April 2024

Проведено качественное определение некоторых групп биологически активных веществ в листьях плюща обыкновенного различных мест произрастания и сравнение их качественного состава
ОПРЕДЕЛЕНИЕ АСКОРБИНОВОЙ КИСЛОТЫ В ТРАВЕ БАЗИЛИКА ОБЫКНОВЕННОГО (OCIMUM BASILICUM L. ), ВЫРАЩИВАЕМОГО В КРАСНОДАРСКОМ КРАЕ
Authors:   Волгоградский государственный медицинский университет, Пятигорский медико-фармацевтический институт, СУДИКИ Л.С. , ГУКЕВА А.Р.
Published: April 2024

Базилик обыкновенный (Ocimum basilicum L.) семейства яснотковые (Lamiaceae) - популярное пищевое растение. Целью работы явилось изучение аскорбиновой кислоты в траве базилика обыкновенного. Материалом служила трава базилика обыкновенного, выращиваемого в Краснодарском крае. Было установлено содержание аскорбиновой кислоты на уровне 0,32-0,33%, что превышает минимальные показатели для плодов шиповника. На основании чего можно охарактеризовать траву базилика обыкновенного как сырье с высоким содержанием аскорбиновой кислоты.
ИЗУЧЕНИЕ АДСОРБЦИОННОЙ СПОСОБНОСТИ ПОРОШКА КОРЫ ИВЫ БЕЛОЙ
Authors:   Первый Московский государственный медицинский университет им. И. М. Сеченова, ЧЕРГЕШТОВ А.М.
Published: April 2024

Кризисное развитие экономики предполагает наиболее полное использование всех отходов промышленного производства. Учитывая существенные объёмы заготовки сырья ивы в РФ, встаёт вопрос оптимального использования отходов древесины и коры данного растения. В течение столетий кора ивы использовалась в качестве жаропонижающего средства. Также имеются упоминания в научной литературе о наличии у древесины ивы высокой адсорбционной активности. Учитывая вышесказанное, была проведена предварительная оценка адсорбционных свойств сырья в сравнении с используемым в РФ адсорбентами.
Influencia de un programa de entrenamiento de fuerza sobre la capacidad motora de jugadores principiantes de baloncesto
Authors: Sobrinho Camara Leonardo , Alves de França Junior Jose Gtsmani , Pereira Salles Irlam , Da Costa Alecrim Joao Victor , Pivetta Pires Gilberto
Published: April 2024

Basketball is a sport that encompasses a large motor arsenal and requires strong, agile and fast athletes. Training is part of a systematic process with the objective of having the best result for the athlete, strength training in particular requires a muscular demand and consequently a neural adaptation. The aim of this study was to analyze the effects of strength training on the specific motor skills of young basketball players. The survey included 12 players aged between 15 and 18 years old divided into two groups, control (GC) and experimental (GE), who underwent a battery of tests to assess throwing speed, passing, dribbling control, defensive movements and number of pitches. The GE presented a decrease of 9.49%, in the test of the GE pass it presented a significant increase of 4.72%, the number of pitches had an increase of 4.36% in the GE, in the speed of the pitch the CG presented a significant increase of 20, 9%, in relation to the defensive movement time, the GE had a significant decrease of 13.8%. It is concluded that strength training is beneficial for the specific motor skills of basketball players.
Similitudes y diferencias en los conceptos de técnica y táctica de los entrenadores de balonmano y balonmano playa
Authors: Torres Di Gilio João Paulo , Dias Estriga Maria Luisa , Pombo Menezes Rafael
Published: April 2024

The aim of this study was to investigate the conception of the term’s “skill” and “tactic” by handball and beach handball coaches. Semi-structured interviews were conducted with 29 coaches (17 from school teams, seven from regional handball leagues; and five from beach handball), and the analysis was based on the thematic analysis. Three themes and six sub-themes were identified, and revealed conceptual confusions between the terms "skill" and "tactic" in the coaches’ speeches. Only the coaches of school handball teams highlighted the topic of effectiveness when defining technique, while the other groups of coaches (beach handball and handball leagues) emphasized only the dimension of efficiency. These results reveal a neglect of the adaptive and effective potential of skill. The coaches corroborated the theoretical framework when defining the term “tactic”, but attributed other meanings that are not adequate, such as treating strategic and tactical aspects as synonyms. These conceptual misunderstandings can lead to methodological implications due to the terms treated being presented as a matrix of the main teaching approaches.
Habilidades psicológicas para la fortaleza mental en jugadores de balonmano
Authors: Lacárcel García Ana Isabel , Tutte Vallarino Verónica , Reche García Cristina
Published: April 2024

The purpose of this study was to analyze the prevalence and relationship of resilience and optimism in a sample of 96 Spanish handball players (age M = 22.32; SD = 4.04) and to analyze the differences according to gender, sports category, age, level of competition and years of sports experience. The Wagnild and Young Resistance Scale (ER), 1993, was used to measure resilience and the Otero, Luengo, Romero, Gómez y Castro (1998) Spanish version of Life Orientation Test-Revised (LOT-R) for optimism. The results found indicate that most athletes have a moderate level of resilience (61.46%). Among the athletes, we find differences in the function of age and sports experience, being those over 21 years of age and those with more sporting experience, those with the highest levels of resilience. Most of athletes have a tendency to be optimistic (64.58%). The optimistic tendency is greater in those of senior category and in those who practice their sport for more than 5 years. Optimism appears positively related to resilience. Encouraging the optimism of our athletes could contribute to increasing their mental strength, their sports performance and their psychological well-being.
El deporte juvenil y el modelo competitivo de alto rendimiento: el caso del campeonato escolar de balonmano de Goiás
Authors: Alencar Adriana Luz , Leonardo Lucas , Krahenbühl Tathyane
Published: April 2024

This study aims to identify how the practice of handball manifests itself in the scope of the championship organized by the Goiás School Sports Federation (FGDE) from the information obtained in official documents and by the perceptions of teachers and managers. This is a qualitative research with an exploratory character. The data were obtained from documentary research based on the regulation and normative documents, and semi-structured interviews conducted with five teachers and a leader. From the content analysis of the documents and interviews, we concluded that the competition is similar to high performance, aiming at performance, selecting athletes and promoting scholarships for the highlights, distancing themselves from the pedagogical and educational principles.
The Resource-Based View and the Implications of Organisational Orientation in Professional Football Clubs: An Exploratory Study
Authors: Miragaia Dina Alexandra Marques , Ferreira João J. M. , Fernandes Daniela F.
Published: April 2024

The COVID-19 crisis represented a major challenge in various social and economic sectors, and the sport context was no exception. Professional clubs had to deal with an intense organisational and operational environment, which is essential to apply their tangible and intangible assets to obtain a sustainable competitive advantage. This study aims to examine the role of entrepreneurial orientation, market orientation and learning orientation in the performance of professional football clubs. In light of the lens of the resource-based view and adopted a qualitative approach, we conducted semi-structured interviews during the pandemic period with stakeholders from five football clubs participating in professional competitions. The results show that entrepreneurial orientation, market orientation, and learning orientation influence sports clubs’ performance. This study is relevant for sports organisations as it identifies a set of assets that, when strategically managed, can increase organisational performance and generate and enhance their competitive advantage and sustainability. It shows a relation between organisational orientations, the resources implemented in clubs and their performance. Competition stimulated sports organisations to adapt, renew, reconfigure and re-create their resources and capabilities in tune with the environment. Furthermore, professional sports clubs try to follow strategies that improve their sports performance, adapting entrepreneurial orientation to developing new services, products and activities, accepting risks and being proactive. This study is relevant for sports organizations in general, as it identifies a set of assets that, when strategically managed, can increase organizational performance as well as generate and improve a competitive advantage.
Influencia del pivote en la eficacia de los jugadores de primera línea en balonmano
Authors: Ávila Moreno Francisco Manuel
Published: April 2024

In handball there is a consensus among the experts on the importance of the pivot player in the team's tactical effectiveness, not only because of his direct participation in the actions to finish off the attack, but also because of his influence on the actions of the rest of the players. In addition, playing in this specific position, most of the actions are carried out without the ball and take place inside the defensive system. These reasons make his influence on the outcome very difficult to analyze. In order to assess it, the present study has been carried out by collecting, through the observational instrument known as Influence of the pivot in the final situation, data from a sample of 1815 offensive sequences given in the medal matches of five top-level masculine tournaments. Different descriptive and correlational statistical analyzes were applied, among which the use of Chaid's decision tree technique stands out. It is concluded that the presence of the pivot in direct relation with the ball holder when the sequences are finished increases the probability that the back players will shoot, as well as increasing their effectiveness. Consequently, the influence of the pivot proves to be decisive for the game outcome.
Assessment of the Potential of Rhizobium leguminosarum bv.viciae on Two Different Soils with the Ashebka faba Bean Variety (Viciae faba L.) as the Host Plant
Authors:   Department of Agricultural Biotechnology, Institute of Biotechnology, University of Gondar, Gondar, Ethiopia, Kibkab Emebet , Berhane Nega
Published: April 2024

Objectives: To assess the effectiveness of the potential of the Rhizobium leguminosarum bv.viciae strain in two different soils with the Ashebka faba bean variety as the host plant. Method: Soil physicochemical analysis and the most probable number were done according to their standard procedure. The pot was laid out in a complete randomized design with three replications. Three top strains were selected as inoculants for faba beans grown on the slightly acidic Shentia soil and the slightly neutral Dabat soil with their control. The symbiotic effectiveness of the strains was evaluated based on plant agronomy and the total nitrogen of the plant. The results of the strains were analyzed by SPSS version 26. Findings: The results of shoot dry weight show that all strains accumulated 81mg/p for isolate WK1E1, followed by 85mg/p for isolate GR1E1, and finally 87mg/p-1 for isolate co-inoculant on Dabat soil, and 78mg/p for isolate WK1E1, followed by 82mg/p for GR1E1 and finally 85mg/p-1 for co-inoculant Shentia soil. The nodule number record range from 138mg/p-1, and 173mg/p-1 for isolate WK1E1 and co-inoculate, respectively for Dabat site. 139mg/p-1 for isolate WK1E1 and 165 mg/p-1 for isolate co-inoculate Shentia site. Maximum mean shoot dry mass (91mg/p) was scored by positive nitrogen and the minimum (29mg/p) by the negative control nitrogen treated control for Dabat. The maximum mean shoot dry mass (86mg/p) was scored by the positive nitrogen treated control and the minimum (29mg/p) by the negative control for Shentia. For Dabat soil, the relative effectiveness expressed as a percentage of shoot dry mass of inoculated over total nitrogen control, showed that 89, 93, and 95.6 and Shentia soil the relative effectiveness expressed as a percentage of shoot dry weight of inoculants over nitrogen treated control, showed that 90.6, 95.3, and 98.8 for isolates WK1E1, GR1E1, and co-inoculant, respectively for both soils. Positive correlations were also observed concerning nodule numbers with other agronomic parameters. Novelty: No such testing was attempted in that study area before, and this new idea came because the Rhizobium leguminosarum bv.viciae isolates tested their survival, compatibility, and effectiveness in two different soils with Ashebka faba bean as the host. Keywords: Ashebka faba bean, most probable estimation, Rhizobium leguminosarum bv.Vicae, inoculums, symbiosis