bluuebunny/crossref_metadata_2025_split huggingface dataset:
Complex use of cycleand power-ergometry in determining the physical working capacity of young athletes
Authors: Khoroshukha M. F. , Filippov M. M. , Bosenko A. I. , Mykhaliuk Ye. L. , Buriak O. Yu. 
Published: December 2023

The aim of this study is to scientifically substantiate the possibilities of complex use of cycle- and power-ergometry in determining aerobic and anaerobic-aerobic performance of power nature.
Materials and methods. Young athletes (boys) aged 15–16 (n = 91) of the Brovary Higher School of Physical Education (Kyiv region) (experimental group), who participated in the study, were divided into two groups. Group А (n = 47) – speed-power sports (boxing, freestyle wrestling); group B (n = 44) – endurance sports (track and field athletics: 800, 1500, 3000 and 5000-meters race, bicycle racing 50 and 75 km). Sports experience was 3–5 years and more. The control group (group К) consisted of students aged 15–16, who did not play sports (n = 25). Physical working capacity was determined using two methods: submaximal cycle ergometric test PWC170 and submaximal power ergometric test PWC170. Method of power ergometry (patent of Ukraine No 49417) has no analogues in countries of near and far abroad.
Results. The fact of the specific influence of different kinds of dosed physical exercises (strength and power exercises) on PWC170 indicators was established. Thus, no probable differences in aerobic performance indicators were found in wrestlers and boxers during the cycle ergometric test. And conversely, under the conditions of power ergometric testing, we find a significant increase in their PWC170 indicators in relation to athletes of endurance sports. The opposite character of changes was observed when testing the track and field athletes and bike riders. According to the results of the conducted cycle ergometry, these athletes had a significant increase in aerobic performance indicators in comparison with the athletes of speed-power sports. However, the changes of anaerobic-aerobic performance were not significant. It was observed that the adolescents, who did not play sports, had statistically insignificant changes in PWC170 indicators both in the conditions of cycle ergometric and power ergometric testing.
Conclusions. The fact of specific influence of different types of training exercises on the body functions of adolescents was confirmed. The possibility of introducing the methods of complex use of aerobic (cycle ergometry) and anaerobic-aerobic loads (power-ergometry) into the practice of medico-biological control of young athletes is shown. Diagnostics of various types of physical working capacity (PWC170) will provide the coach with operational information about the functional state of the athletes’ body, which will allow to effectively manage a training process.
Contemporary comprehensive approaches to assessing the effectiveness of experimental model of neurodegenerative disorders with cognitive status changes
Authors: Danukalo M. V. , Kolesnyk Yu. M. , Hancheva O. V. 
Published: December 2023

Aim of the study was to characterize the locomotor and cognitive aspects of the behavior of experimental rats under intracerebroventricular colchicine administration in the open field test and the 8-arm radial maze, as well as identify a set of behavioral features of experimental animals that emerged during the study.
Materials and methods. The study was conducted in two stages on 20 male Wistar rats aged 10–11 months. The first stage involved assessment of initial locomotor activity and cognitive functions in all intact rats. At the next stage, the rats were divided into two experimental groups (n = 10): the first group with intracerebroventricular injection of physiological NaCl solution, and the second group with intracerebroventricular injection of colchicine. In 14 days after the surgery, repeated recording of locomotive and cognitive activity indicators was performed.
Results. The locomotor activity characteristics did not statistically differ between the animals before the surgical procedures and the rats of the first group. However, in the second group, the activity indicators were significantly higher than in the respective pre-surgery rats. In the intergroup comparison of the rats that entered the second stage of the experiment, it was found that among all the investigated parameters, only the indicator of high activity duration was significantly higher in the second group compared to the first group. At the same time, the animals in the second group showed significant cognitive impairments compared to the first group, as indicated by significantly lower memory index values, the number of correct entries into the maze arms, and a significantly longer time to make the first correct entry into the maze arm.
Conclusions. Intracerebroventricular administration of colchicine to experimental rats is accompanied by increased locomotor activity and impairment of cognitive functions. The administration of a physiological solution is not accompanied by a statistically significant increase in locomotor activity, but it demonstrates a clear tendency to increase, which may indicate a certain influence of the procedure itself. The applied pharmacological model of neurodegeneration with subsequent comprehensive assessment of animal behavior in an open field and an 8-arm radial maze is legitimate and can be used to study the early development of neuroinflammation, neuroapoptosis, and synaptogenesis disorders in the experiment.
Bactericidal and Fungicidal Action of Copper Nanoparticles on Leather Surface
Authors: N Deepak , C Inbasekar , Nishter Nishad Fathima 
Published: December 2023

Although tanning makes the collagen matrix resilient against microbial attack, the chemicals used in the finishing process are susceptible to microbes. Hence, it is imperative to develop a finishing process with inherent antimicrobial properties. Leathers with antimicrobial properties evoke a considerable array of interest in consumers. The present study aims to enhance the antimicrobial properties of the leather using copper nanoparticles in the finishing and retanning process. Copper nanoparticles have been synthesized by chemical reduction using copper sulphate pentahydrate as the precursor with dialdehyde starch and gallic acid. The prepared nanoparticles have been characterized using UV-Visible spectrometry, dynamic light scattering, scanning electron microscopy, transmission electron microscopy, and X-ray diffraction techniques. The prepared nanoparticles have been used in both retanning and finishing processes. The experimental leather retanned using copper nanoparticles possess good mechanical strength properties and color index value compare to the control. Nanoparticles are effective against both gram negative and positive bacterial organisms. The nanoparticles also inhibit the growth of common fungus, which can colonize on leather. Thus, the current study paves the way for a novel solution that is an alternative to biocides and antimicrobial chemicals and is more effective in inhibiting microbial growth.
INSPIRE: Development of an Interdisciplinary Science Program in Research and Entrepreneurship
Authors: Sedighi T. , Radu T. , Ashraf Q. F. , Kumar B. , Quilates E. J. , Rahmatullah R. , Milstein J. N. 
Published: December 2023

ABSTRACT
We developed the Interdisciplinary Science Program in Research and Entrepreneurship (INSPIRE) to address the changing career landscape that students with an interest in Biophysics, Physical Chemistry, and Biochemistry face. Third and fourth-year undergraduate Chemistry and Physics students participated in a 4-week, hands-on program that introduced applications of biophysical and biochemical techniques to drug discovery, while simultaneously engaging in a crash course on entrepreneurship and pharma. The principal objective of this inaugural, pilot program was to introduce undergraduate students interested in pursuing a PhD to the interdisciplinary nature of Chemistry and Physics research in the Life Sciences, while simultaneously introducing the idea of translating their future graduate work into a career in biotechnology.
A New Construction Method for Keystream Generators
Authors: Gül Çağdaş , Kara Orhun 
Published: December 2023

<p>We introduce a new construction method of diffusion layers for Substitution Permutation Network (SPN) structures along with its security proofs. The new method can be used in block ciphers, stream ciphers, hash functions, and sponge constructions. Moreover, we define a new stream cipher mode of operation through a fixed pseudorandom permutation and provide its security proofs in the indistinguishability model. We refer to a stream cipher as a Small Internal State Stream (SISS) cipher if its internal state size is less than twice its key size. There are not many studies about how to design and analyze SISS ciphers due to the criterion on the internal state sizes, resulting from the classical tradeoff attacks. We utilize our new mode and diffusion layer construction to design an SISS cipher having two versions, which we call DIZY. We further provide security analyses and hardware implementations of DIZY. In terms of area cost, power, and energy consumption, the hardware performance is among the best when compared to some prominent stream ciphers, especially for frame-based encryptions that need frequent initialization. Unlike recent SISS ciphers such as Sprout, Plantlet, LILLE, and Fruit; DIZY does not have a keyed update function, enabling efficient key changing. </p>
ASSESSMENT OF THE STABILITY OF FERTILITY OF AGRO-GRAY SOIL BY METHODS OF MULTIDIMENSIONAL STATISTICAL ANALYSIS
Authors: Ушаков Р.Н. , Ручкина А.В. , Бобраков Ф.Ю. 
Published: December 2023

Проблема и цель. Для понимания сложности плодородия почв и его управления можно использовать методы многомерного статистического анализа. Цель исследований – оценка устойчивости плодородия и ее оптимизация с помощью кластерного анализа (КА) и метода главных компонент. Они позволяют представить всю совокупность почвенных свойств как один фактор. Методология. Работа выполнена по материалам агрохимического обследования на агросерых почвах. Отдельнообрабатываемые участки делились на элементарные участки площадью 5-8 га (на пашне). С каждого элементарного участка отбирался один смешанный почвенный образец, который состоял из 20-45 индивидуальных проб. Объем проанализированной выборки составил 224 образца. Учеты, наблюдения и анализы проводились по общепринятым методикам. Результаты. Установлено, что оптимальные параметры плодородия агросерой почвы достигались при рНkcl– 5,5–5,6 ед., Нг – 1,7–1,9 мг-экв/100 г, Р2О5 – 225-240 мг/кг, К2О – 158–192 мг/кг, гумусе – 3,0-3,4 %, Мg 2+ – 4,4-6,0 мгэкв/100 г, V – 90-91%. Заключение. Предложена поэтапная корректировка группировки бонитета, сначала выполненная на основе медианы, затем методами многомерного статистического анализа, при которых были достигнуты достоверная классификация вовлеченных в оценку агрохимических почвенных свойств и одинаковый по весу их вклад в дискриминацию.
Problem and purpose. Multivariate statistical analysis techniques can be used to understand the complexity of soil fertility and its management. The purpose of the research is to assess the stability of fertility and its optimization using cluster analysis (CA) and the principal component method. They make it possible to present the entire set of soil properties as one factor. Methodology. The work was carried out based on materials from an agrochemical survey on agro-gray soils. Separately cultivated plots were divided into elementary plots with an area of 5-8 hectares (on arable land). One mixed soil sample was taken from each elementary plot, which consisted of 20-45 individual samples. The volume of the analyzed sample was 224 samples. Accounts, observations and analyzes were carried out according to generally accepted methods. Results. It was established that the optimal fertility parameters of agro-gray soil were achieved at pHkcl – 5.5–5.6 units, Hg – 1.7–1.9 mEq/100 g, P2O5 – 225-240 mg/kg, K2O – 158 –192 mg/kg, humus – 3.0-3.4%, Mg2+ – 4.4-6.0 mEq/100 g, V – 90-91%. Conclusion. A step-by-step adjustment of the quality grouping is proposed, first performed on the basis of the median, then by methods of multivariate statistical analysis, in which a reliable classification of the agrochemical soil properties involved in the assessment and an equal weight of their contribution to discrimination were achieved.
DESIGN FEATURES OF MULTICOPTER SPRAYERS
Authors: Толочко Н.К. , Романюк Н.Н. , Еднач В.Н. , Виноградов Д.В. , Сазонкин К.Д. 
Published: December 2023

Проблема и цель. Существующие технические новшества в области беспилотных летательных аппаратов (БПЛА) постепенно внедряются, а для некоторых агротехнических операций уже используются в современном сельскохозяйственном цикле выращивания растений. Дроны – новый вид агрегатов для мониторинга и обработок полей, однако из-за низкой разработанности вопроса их широкого применения необходимо проводить исследования по улучшению их конструкции и расширению области применения. Целью исследований являлось рассмотрение проблемы проектирования мультикоптеров-опрыскивателей с учетом возможности их изготовления посредством аддитивных технологий с упором на повышение грузоподъемности мультикоптеров. Методология. Исследования были проведены в Белорусском государственном аграрном техническом университете с помощью расчетного метода. Результаты. Результаты исследований показывают, что при изготовлении деталей мультикоптеров-опрыскивателей посредством аддитивных технологий возможно выпускать широкий спектр разноразмерных моделей, в зависимости от области использования. Заключение. В результате исследования были установлены технические моменты, корректируя которые на этапе производства мультикоптеров с помощью аддитивных технологий, возможно производить специализированные БПЛА.
Problem and purpose. The existing technical innovations in the field of unmanned aerial vehicles are gradually being introduced, and for some agrotechnical operations are already being used in the modern agricultural cycle of growing plants. Drones are a new type of equipment for monitoring and post-treatment, however, due to the low development of the issue of their widespread use, it is necessary to conduct various studies to improve their design and expand their scope. The aim of the research was to consider the problems of designing multicopter sprayers, taking into account the possibility of their manufacture using additive technologies, with an emphasis on increasing the carrying capacity of multicopters. Methodology. The studies were carried out at the Belarusian State Agrarian Technical University using the calculation method. Results. The research results show that when manufacturing parts for multicopter sprayers using additive technologies, it is possible to produce a wide range of different-sized models, depending on the area of use. Conclusion. As a result of the study, technical points were established, correcting which at the stage of production of multicopters using additive technologies, it is possible to produce specialized UAVs.
Carbon and nitrogen stocks in a Rhodic Nitisol under different tillage methods and mineral and organic fertilizers
Authors: Wuaden Camila Rosana , Nicoloso Rodrigo da Silveira , Cassol Paulo Cezar , Matias Caroline Aparecida , Paweukievicz Letícia 
Published: December 2023

ABSTRACT

Changes in soil management, for example by more vigorous crops, adoption of conservation tillage and optimization of fertilization, can increase soil organic carbon (SOC) and total nitrogen (TN) stocks. We hypothesized that corn - black oat rotation under no-tillage (NT) and adequate soil fertilization can increase these stocks, compared to conventional tillage (CT). This study compared these two tillage methods and organic with mineral fertilizers, regarding their effects on C and N cycling and SOC and TN stocks in a Rhodic Nitisol in southern Brazil. The study started in 2012, in a pasture area, which was converted into corn (Zea mays L.) - black oat (Avena strigosa Scherb.) rotation. The treatments were applied in a 2 × 5 factorial arrangement, consisting of two soil tillage methods (NT and CT) and five fertilizers (pig slurry (PS); biodigested PS (PS-B); composted PS (PS-C); mineral fertilizer; and a control). From 2019 onwards, treatment PS-B was replaced by injected PS (PS-I) and PS-C by poultry litter (PL). A randomized block design was used in a split-plot arrangement, where the plots corresponded to soil tillage and subplots to fertilization. In every year of the study, corn was fertilized with 140 kg N ha
-1
and at least 115 kg P
2
O
5
ha
-1
and 77 kg K
2
O ha
-1
. Total SOC and TN stocks were determined in six soil layers (0.00-0.05, 0.05-0.10, 0.10-0.20, 0.20-0.30, 0.30-0.40 and 0.40-0.60 m) whereas the soil particulate (POC and PN) and mineral-associated (MAOC and MAN) fractions were evaluated in the four upper layers (0.00-0.05, 0.05-0.10, 0.10-0.20, 0.20-0.30m) at the beginning of the study (2012) and after nine years (2021). The cumulative values under NT showed that SOC stocks nearly doubled, compared to those under CT. These increases occurred in the most labile POC and PN fractions. However, no difference in response to the different fertilizers was observed in these stocks. The studied factors indicated a marked effect of soil tillage on alterations in C and N stocks. No-tillage increases SOC and TN stocks, mainly in the most labile fractions (POC and PN) of Rhodic Nitisols in southern Brazil, under corn - black oat rotation.
The principle of synthesis of control actions in immeasurable perturbation by means of observers
Authors: Лубенцов В.Ф. , Лужевский Н.О. , Лубенцова Е.В. , Лютикова М.Н. 
Published: December 2023

В статье рассмотрен синтез управления объектом на основе принципа восстановления переменных состояний и оценки неизмеряемого возмущения с использованием асимптотического наблюдателя Люенбергера минимальной размерности. Целью исследования является обоснование принципа синтеза управления путем анализа переходных процессов в системе с наблюдателем, функционирующей в условиях действия внешнего неизмеряемого возмущения. Разработана структура системы автоматического управления, в которой для компенсации возмущающего воздействия предусмотрено дополнительное интегрирующее звено, реализующее оценку восстановленного наблюдателем возмущения. Получены переходные процессы на выходе объекта и наблюдателя в системе управления с оценкой производной в законе регулирования, восстановленной наблюдателем, продемонстрировавшие существенную зависимость показателей качества от возмущения. В связи с чем, был разработан алгоритм компенсации влияния внешнего возмущения на объект, имеющего наиболее тяжелый для регулирования ступенчатый вид. Синтезированный наблюдатель позволил дополнительно улучшить динамику системы управления при действии внешнего возмущающего воздействия.
The article considers the synthesis of object control based on the principle of restoring variable states and estimating an immeasurable perturbation using an asymptotic Luenberger observer of minimal dimension. The aim of the study is to substantiate the principle of control synthesis by analyzing transients in a system with an observer operating under the action of an external immeasurable disturbance. The structure of the automatic control system has been developed, in which an additional integrating link is provided to compensate for the disturbing effect, which implements the evaluation of the disturbance restored by the observer. Transient processes at the output of the object and the observer in the control system with an estimate of the derivative in the law of regulation restored by the observer have been obtained, demonstrating a significant dependence of quality indicators on perturbation. In this connection, an algorithm has been developed to compensate for the influence of an external disturbance on an object that has the most difficult stepwise appearance for regulation. The synthesized observer made it additionally possible to improve the dynamics of the control system under the action of an external disturbing influence.
PKM Peningkatan Skala Produksi Sentra Batu Bata Desa Pliken Melalui Peningkatan Kualitas Batu Bata dan Perbaikan Manajemen Usaha
Authors: Arini Ratih Windu , I Anna Tul Munikhah  , Annisa Utami  
Published: December 2023

Pengabdian masyarakat ini fokus pada skala produksi Sentra Batu Bata Desa Pliken, Kabupaten Banyumas. Mitra adalah Kelompok Pengrajin Batu Bata yang menghadapi tantangan, seperti kapasitas produksi rendah, kualitas produk belum sesuai standar SNI, usaha bersifat keluarga, kurangnya pemahaman manajemen profesional, serta minim pengetahuan pemasaran dan akses dana pinjaman. Solusi diajukan, meliputi pendampingan manajemen usaha untuk meningkatkan kualitas produk dan kemampuan pengrajin. Penambahan kapasitas produksi dan sistem perhitungan stok batu bata direncanakan. Upaya juga termasuk pelatihan manajemen permodalan dan simulasi proposal kredit bank. Diharapkan, solusi ini akan memungkinkan kelompok pengrajin mengatasi kendala, meningkatkan kualitas produk, dan memperluas jaringan pemasaran. Dalam jangka panjang, diharapkan kontribusi pada pertumbuhan ekonomi lokal. Kolaborasi peneliti-mitra akan menghasilkan peningkatan skala produksi dan kualitas usaha, memberi dampak positif bagi masyarakat Desa Pliken secara keseluruhan.
Identification and Evaluation of Human Factors Affecting the Operational Performance of Innovation Hubs
Authors: Vijayakumar Anandhu , Davidova Jelena 
Published: December 2023

Abstract
The research has been carried out to identify and evaluate the human factors affecting the operational performance of innovation hubs. The authors conduct a systematic review of relevant literatures and identify certain factors that found to affect the operating performance of Innovation hubs. Through a quantitative research methodology, such as a structured questionnaire, the authors gathered responses from HR experts in the form of an online survey. The survey responses were analyzed with the help of factor analysis, which helped the authors gather 2 components out of 14 survey variables. With the help of factor analysis, the authors developed a model for enhancing the operational performance of innovation hubs. The model can act as a template for further research in the field. Companies can utilize this model for enhancing the operational performances of their innovation hubs.
Legal Act for Recognising the Interest of the Group
Authors: Losaks Gvido 
Published: December 2023

Abstract
There is legal fragmentation in Member States practices of recognition the interests of the group and at the EU level is needed enabling law. This research paper will look at the recognition of the interest of the group at the EU level. It will question which legal act should recognise the interest of the group at the EU level. The methodology used will be that of legal doctrinal and comparative research, legal theory method and reform agenda research. The research paper will conclude that a legal act for recognising the interest of the group at the EU level should be a Regulation.