bluuebunny/crossref_metadata_2025 huggingface dataset:
THE ROLE OF RURAL SCHOOLS IN THE DEVELOPMENT OF THE COUNTRY'S REGIONS
Authors:   Kyrgyz State University named after I. Arabayev, Smanbaev Ornokbek
Published: February 2024

Development of agriculture and food security of the country was noted in the strategic directions of Kyrgyzstan development. These tasks, in turn, require the use of innovative technology, progressive forms of labour organization and training of skilled agricultural personnel. The village school can contribute to solving the socio-economic tasks of the country and perform the functions of the creator of the village, the distributor of culture and as an educational center raising the personal and professional qualities of students. Graduates of rural schools are a reserve for replenishment of rows of workers of the village. The article discusses the role of rural schools in the development of regions of the country, the need to pay appropriate attention.
THE PURPOSE OF PLANNING THE EDUCATIONAL WORK IN THE KINDERGARTEN
Authors:   Kyrgyz State University named after I. Arabayev, Seidekulova Kulsun , Rizaeva Rakhat ,   Kyrgyz State University named after I. Arabayev
Published: February 2024

The item is devoted to the issues of planning the work of pre-school educational organizations: regimen moments, educational activities, classes, definition of their goals, objectives, structure, guided by current programs and regulatory documents on pre-school education. Planning should ensure the unity of educational, developmental and educational goals and objectives of preschool children's education and the integration of educational areas. To conclude the preschool education should be implemented, in particular, to use in educational activities forms and methods of work with children appropriate to their age and individual characteristics. The article consist of needs to plan and complete this model of educational processing organizations for the entire academic year, to create a system and sequence of planning educational processes. The teacher's creative approaches of modeling the educational process are especially noted.
PROBLEMS OF IMPROVING THE MATHEMATICAL KNOWLEDGE OF FIRST-YEAR STUDENTS OF PEDAGOGICAL INSTITUTIONS
Authors:   Kyrgyz State University named after I. Arabayev, Uzakova Magira , Kazieva Gulzat ,   Kyrgyz State University named after I. Arabayev
Published: February 2024

This article presents some ways to fill knowledge gaps and encourages you to work closely with them in teaching student-centered learning. Emphasis was placed on the competence of primary school teachers, and efforts were made to invite students to teach this competence, and that the process of vocational training for students should be presented as a single system. It was also noted that an individual approach is aimed at developing the full interest of each student and the formation of his desire for knowledge, the content of teachers' activities will change, as well as teaching methods and technologies in the classroom aimed at organizing the environment of creative thinking and managing their educational process.
KINSHIP TERMS IN KYRGYZ AND TURKIC LANGUAGES
Authors:   ", Kayypberdieva Zhyldyz ,   Ala-Too",   International University
Published: February 2024

Both through blood and marriage, people are close to each other in various ways and it is called a kinship. Our language has the wealth that any other language does not have. Because Kyrgyz people have given the importance to kinship relations throughout history. And therefore, a very rich terminology of kinship has emerged in Kyrgyz language. Humanity expanded over time, after the birth of a child, the families got bigger, especially after marriages the number of relatives grew, and they had new names. Kinship relations, although it has a biological basis, it is determined by culture and social relations it is the foundation of the relationship. Because it is the basis of social relations in society, which is why the concept of "kinship relations" is universal.
DESCRIPTION OF EPOCH IN АLYMKUL USONBAEV’S CREATION
Authors:   Institute of Language and Literature named after Ch. Aitmatov, Sagyndyk kyzy Zhanar
Published: February 2024

Alymkul Usenbaev – akyn, who happened to live at the turn of the two centuries. The beginning of his creative path falls on pre-revolutionary time. During this period, the young akyn begins to write poetry to folk motives heard from his villagers. Along with Toktogul and other improvising-singers, he managed to reflect in his verses all the hardships of life. In the works the improvising singer attaches great importance after the revolutionary period. In this article, we want deeper to see the world and the time the authour lived, analyzing his works.
EXPERIMENTAL EVALUATION OF THE STRUCTURAL INTEGRITY OF VERTICAL CYLINDRICAL STORAGE TANK SHELL-TO-BOTTOM JOINTS OF VARIOUS DESIGNS
Authors: Skornyakov A.A.
Published: February 2024

Bottom-to-shell joint is one of the most critical areas in vertical cylindrical storage tanks, both in terms of the number of detected flaws and the causes of failures. The primary factors contributing to the present state include the structural peculiarities of the shell-to-bottom joint, leading to incomplete fusion in the middle between the double filletgroove welds (double fillet welds) and, consequently, low inspectability. This results in a complex stress-strain state with maximum stress levels in the area of the shell-to-bottom joint. Thus, improving the existing design of the bottom-to-shell joint is relevant.This article presents the results of comparative resource evaluation tests conducted on the typical design of the shell-to-bottom joint and two prospective designs: one with complete penetration weld and another with a T-section. The tests were conducted using prototypes that replicate the necessary structural properties of the shell-to-bottom joint and the stress distribution diagram, allowing testing on standard servo-hydraulic machines. The results obtained indicate that all considered designs of shell-to-bottom joints, when free from flaws, exhibit high reliability, ensuring safe operation even under double the operational stresses for a minimum of 50 years. Considering the improved inspectability and feasibility of manufacturing these prospective shell-to-bottom joint designs, along with their comparable production costs, they can be recommended for practical applications.
INVESTIGATION OF OIL PIPELINE EQUIPMENT FAILURE-FREE PERFORMANCE DEPENDING ON INTRODUCED QUALITY MANAGEMENT MECHANISMS
Authors: Aralov O.V. , Vyunov S.I. , Yangirov E.I. , Korolenok A.M.
Published: February 2024

The industry system for assessing the conformity of the main types of products used by Transneft has been operating since 2004 and is implemented on the basis of the Research Institute of Pipeline Transport of Transneft Research Institute. Conformity assessment shall be carried out for products of producers ensuring the technological processes of oil and petroleum products transportation and safety of facilities of oil trunk pipelines and petroleum product pipelines, including products operated under excess pressure of oil and petroleum products.As part of the implementation of this area of activity, the institute solves the following tasks:— expert examination of technical documentation of products;— participation in factory tests of products;— conducting tests of products on their own at the Research and Development Center of NII Transneft LLC (Ufa);— participation in the inspection of the production of products. In turn, Transneft has defined a list of the main types of products that are subject to mandatory conformity assessment and inclusion in the ORP Register, after which they are allowed to be used at Transneft’s hazardous production facilities, as well as developed its own industry regulatory documents of the type general technical requirements that take into account the uniqueness of the operating conditions of the equipment. Management of equipment reliability at different stages of the life cycle in an oil transportation enterprise represents a complex multilevel system of interrelated scientific, methodological and organizational and technical measures that directly or indirectly affect the reliability of equipment.Within the framework of the studies carried out by the specialists of Transneft Research Institute, more than thirty such measures were analyzed for direct or indirect impact on the reliability of equipment, including incoming control of equipment, factory, bench, resource, laboratory tests, production inspections, technical supervision of manufacturing, construction control of installation, diagnostics, maintenance, repairs, development of industry standards and other procedures. The variety of such processes makes up the system reliability of hazardous production facilities for pipeline transport of oil and petroleum products. The heterogeneity and sometimes redundancy of such processes negatively affect both operating organizations and equipment manufacturers.
PROCEDURE FOR DETERMINING THE NATURE OF CALCIUM CARBONATE FORMATION ON OILFIELD EQUIPMENT
Authors: Malinin A.V. , Sitdikov V.D. , Mironov I.V. , Valekzhanin I.V. , Nikolaev A.A. , Makatrov A.K.
Published: February 2024

In the article, the authors propose to use the method of X-ray diffraction analysis (XRD) to establish the nature of the formation of oilfield deposits using of calcium carbonate as an example. It was shown for the first time that comparative diffraction patterns of natural and technogenic carbonate mineral deposits of oilfield equipment differ significantly in the physical broadening of diffraction reflections. In addition, it has been established that the diffraction reflections of technogenic calcite are characterized by shifts to the region of large scattering angles. These facts are taken as the basis for establishing the nature of the formation of carbonate deposits using X-ray diffraction analysis. It has been shown that natural (core) carbonate minerals are characterized by narrow reflections with good resolution of doublet lines, while in minerals formed under borehole conditions, the diffraction maxima are much broader, and low-intensity reflections are not resolved. Precision analysis of diffraction patterns showed that the reasons for such atypical broadenings and shifts of reflections in technogenic mineral deposits are the relatively small sizes of grains — crystallites and high microdistortions of the crystal lattice compared to their natural analogues. It is shown that in order to establish the nature of carbonate deposits of oilfield equipment, it is necessary to measure diffraction patterns of natural and technogenic minerals under the same shooting conditions. Subsequently, the obtained diffraction patterns are analyzed and X-ray diffraction data on the microstructure of the studied minerals are determined. It has been established that in technogenic calcite the crystallite sizes in all arbitrarily selected directions (hkl) are more than 1.6 times smaller than in its natural analogue. The X-ray diffraction method has shown that the average value of microdistortion of the crystal lattice of technogenic calcite is 1.7 times greater than that of its natural analogue. As a result of comparing X-ray diffraction data on the fine structure of mineral deposits of oilfield equipment with those obtained from core material, the nature of the formation of the analyzed minerals is established. To confirm the XRD results, visual studies using scanning electron microscopy (SEM) were also carried out.
FEATURES OF DECOMPOSITION OF GAS HYDRATE IN NONEQUILIBRIUM MODE IN A POROUS MEDIUM
Authors: Khasanov M.K. , Kildibaeva S.R. , Stolpovsky M.V.
Published: February 2024

The paper presents a mathematical model of the nonequilibrium decomposition of a gas hydrate contained in a porous reservoir of finite extent. The system of basic equations, which includes the law of conservation of mass, the heat inflow equation and Darcy’s law, also contains an equation describing the kinetics of nonequilibrium hydrate decomposition, which is determined by pressure, temperature and surface area of particles. On the basis of the numerical solution of the problem, dependences are obtained that allow us to identify the regularities of the process of nonequilibrium decomposition of gas hydrate in a natural reservoir when warm gas is injected into a porous reservoir. It is shown that at the initial moments of time after the start of injection, the extent of the region saturated with gas, hydrate and water is very small compared to the extent of the formation, which corresponds to the mode of hydrate decomposition on the frontal surface. At long injection times, the nonequilibrium hydrate decomposition process is characterized by the formation of three characteristic zones: the near one, where the pores are saturated with gas and water, the far one, saturated with methane and its gas hydrate, and the intermediate one, where gas, hydrate and water are located. It is established that the pressure and temperature in the extended region are connected by the condition of phase equilibrium. The influence of the main parameters of the system on the distributions of pressure, temperature, water saturation and hydrate saturation, as well as on the dynamics of their changes over time, is analyzed. It is shown that injection pressure, as well as reservoir permeability and porosity have a significant effect on the decomposition rate of gas hydrate. An increase in the values of these parameters contributes to an increase in the rate of nonequilibrium hydrate decomposition. An increase in the injection temperature leads only to an increase in the extent of the area containing methane and water.
Editorial: Language and Law
Authors: Ravyse Natasha , Laubscher Michael
Published: February 2024

Initiated against the backdrop of the NWU Faculty of Law's inaugural "Justice in Practice" colloquium in March 2022, this collection of articles represents an independent and meticulously scrutinised body of work. While inspired by the colloquium's overarching theme, each contribution has undergone a rigorous, blind peer review process, ensuring scholarly rigor and individual merit. The colloquium served as a catalyst for exploring unchartered territories in language and law research, emphasising the global South's unique perspective enriched by multilingualism and multiculturalism. In the complex tapestry of human society, the dynamic interplay between language and the legal domain emerges as a dynamic and evolving field demanding scholarly exploration and understanding.
The Relationship between TPACK and Self-Efficacy of the English Teachers of Gifted Students in Science and Art Centres: A Sample of Türkiye
Authors: AYDIN YILDIZ Tugba
Published: February 2024

Modern technology has been incorporated into all the aspects of daily life. The relevant changes are transforming our routines and are being integrated into our lives at varied speeds. This transition is also having an impact on teaching and learning practices. To integrate the aforementioned changes into their everyday practices, substantial effort has been invested by the participants within these contexts, namely, the students and their teachers. The necessity for proficiency in technology tools and applications, coupled with the exploration of whether there exists any correlation between technological pedagogical content knowledge (TPACK) levels and self-efficacy levels, stands as a phenomenon that warrants examination in literature. Although previous studies succeeded to emerge TPACK level of English language teachers from different backgrounds, it was aimed to fill the gap for those (124) of gifted students through the current study. A case study was used; also, TPACK-EFL survey and the English Self-Efficacy Belief Scale were preferred as the instruments. The results indicated that the TPACK level of English language teachers of gifted students was quietly high, and they were aware of instructional strategies, student engagement, and classroom management from the perspective of self-efficacy within four language skills such as; reading, writing, listening and speaking.
The Relationship of 2D:4D Finger Length Ratio with Biomotoric Characteristics and Sports Performance in Adolescent Basketball Players
Authors: Çetinkaya Erkan , Tanır Halil , Çelik Furkan
Published: February 2024

Background. The aim of this study is to determine the relationship of 2D:4D finger length ratio (also known as digit ratio) with biomotoric features and sports performance in adolescent basketball players. 24 male basketball players with a mean age of 14.83±0.71 years and a training age of 7.08±1.92 years participated in the study.
Materials and methods. The participants’ 2D and 4D finger lengths of both hands, height (cm), body weight (kg), some biomotoric characteristics and sports performances were determined by measurements. The German Heidelberger Basketball Test was conducted to evaluate the basketball-based sports performances of the participants. The SPSS 25.0 package program was performed in the statistical analysis of the obtained data. The Shapiro-Wilk test was used to determine whether or not the data showed a normal distribution. Parametric tests were preferred for statistical analysis as the data were found to have a normal distribution.
Results. It was found that there was no statistically significant relationship between the 2D:4D finger length ratio, some motoric features and basketball-based sports performances of the participants (p>0.05). It was concluded that the ratio of 2D:4D finger lengths in adolescent basketball players did not have an effect on biomotoric features and basketball-based sports performance. When the correlation between 2D:4D finger length ratio and sports performance parameters was examined, no statistically significant relationship was observed (p>0.05).
Conclusions. Although some studies show a significant negative correlation between performance tests and the 2D:4D ratio, it should be noted that the 2D:4D finger ratio is not the only determinant for sports performance.
Effects of Whole-Body Vibration Combined with Blood Flow Restriction and Systemic Hypoxia on Body Composition and Physical Performance in Overweight University Students
Authors: Jaisuk Jittima , Namboonlue Sarocha , Sriwiset Palakorn , Tongterm Tachapon , Buttichak Arunya , Muangritdech Nattha , Namboonlue Chaiyawat
Published: February 2024

Study purpose. This study investigated the effects of whole-body vibration (WBV) combined with blood flow restriction (BFR) and hypoxic exposure (HYP) on body composition and physical performance in overweight university students.
Materials and methods. Twenty-nine male university students with overweight were divided into 3 groups: 1) whole-body vibration (WBV), 2) whole-body vibration plus blood flow restriction (WBV+BFR, 60% of occlusion pressure) and 3) whole-body vibration plus hypoxic exposure (WBV+HYP, FiO₂ = 15.8%). Training included 10 sets of intermittent WBV exercise (30-35 Hz in frequency and high amplitude) 20 min/day and 3 days/week. Body composition along with physical performance was measured before (2-3 days prior) and after (2-3 days post) an 8-week training period.
Results. The results of this study were as followed, after training, the maximum strength (1RM) in the leg press and leg curl were significantly increased in the WBV+HYP group (28.31%, p = 0.016 and 13.56%, p = 0.017) compared with the WBV group (17.68% and 2.88) respectively. Similarly, the WBV+HYP group showed a substantial increase in muscle endurance in the leg extension and leg curl (28.57%, p = 0.013 and 34.38% p = 0.049) when compared to the WBV group (5.33% and 13.20%) respectively.
Conclusions. Whole-body vibration combined with blood flow restriction and hypoxic exposure were effective in improving body composition and physical fitness. Performing the procedure can also be adjusted according to convenience and suitability for each individual. It is a guideline for preventing, treating, and promoting health among overweight adolescents.
T cell differentiation from mice spleen tissue v1
Authors: Zheng Ningbo
Published: February 2024

This protocol is for T cell differentiation from mice spleen tissue to investigate T cell function (including differentiation and proliferation) in vitro.
Quantify coral paling with grayscale-normalized color intensity values v1
Authors: Paulino Jr. Loreto , J Anthony Colin , Lock Colin , T Berg Justin , E K Duenas Anela
Published: February 2024

Color normalization is crucial for accurate assessment of coral health in ecological studies. Color intensity has conventionally been used as a rapid assessment of coral health. However, color differences often confound comparisons. Here we present a protocol for quantifying coral paling using photographic monitoring and grey-scalenormalization. RAW in situ images were converted to JPEG using PhotoscapeX. ImageJ is then used to collect grayscale and coral intensity values. A correction formula adjusts and normalizes coral values. Lastly, we provide an optional Excel macro code to help facilitate large data processing. This protocol ensures consistent color representation, vital for ecophysiological studies and coral monitoring, aligning with established methodologies and enhancing data reliability.
BAF_Protocol_005 Database Search Proteome Discoverer into Scaffold v1
Authors: not provided nesf
Published: February 2024

This protocol lays out the basic steps for taking a Thermo RAW file and doing a standard database search in Proteome Discoverer 2.5+ and putting the search results into Scaffold 5.3+ for display. Included is also the standard search of 200ng of HeLa digest as an instrument benchmark for the Exploris 480. The protocol will go through the most important parameters and settings for obtaining quality, reproducible data. Settings can be changed for other, specific experiments as appropriate.
Pengaruh Faktor Keperluan dan Kemahuan terhadap Interpretasi Komuniti Tamil tentang Kualiti Hidup di Kawasan Setinggan Dharavi, Mumbai, India
Authors: Sigamani Thennarasu , Lyndon Novel
Published: February 2024

Kualiti hidup setinggan seringkali dilihat daripada sudut pemahaman dan keperluan pihak pembuat dasar. Keadaan ini menyebabkan kemahuan dan keperluan komuniti setinggan kerap diketepikan dan tidak diendah. Fenomena ini mencerminkan kelemahan intervensi oleh pihak berkepentingan dalam memastikan kualiti hidup bagi komuniti Tamil di kawasan setinggan Dharavi. Sekiranya langkah yang efektif tidak diambil, keadaan ini boleh memberi kesan negatif kepada kualiti hidup penduduk di bandar dan komuniti setinggan bandar. Untuk menangani isu ini, adalah penting untuk memahami interpretasi komuniti yang terlibat itu sendiri bagi membantu meningkatkan kualiti hidup masyarakat setinggan. Justeru, objektif utama kajian ini adalah untuk mengkaji pengaruh faktor keperluan dan kemahuan terhadap interpretasi komuniti setinggan Tamil tentang kualiti hidup di kawasan setinggan Dharavi, Mumbai, India. Seramai 20 orang informan telah dipilih dari kalangan komuniti Tamil di kawasan tersebut. Kajian ini menggunakan kaedah kualitatif dimana data telah dikumpul melalui temu bual mendalam dan pemerhatian tidak turut serta sebelum dianalisis secara tematik. Dapatan kajian menunjukkan kualiti hidup informan dipengaruhi oleh faktor keperluan dan kemahuan komuniti Tamil di kawasan setinggan Dharavi, India yang boleh dikategorikan sebagai material atau bukan material. Penemuan ini boleh digunakan oleh pihak berkepentingan untuk membangunkan dasar dan program yang lebih berkesan untuk komuniti setinggan. Hasil kajian ini juga diharapkan dapat menjadi panduan kepada pengkaji akan datang.
The Second Wave of Look East Policy (Lep 2.0): Enhancing The Bilateral Relations Between Malaysia – Japan
Authors: Ismail Hanim , Yaakob Ahmad Faiz
Published: February 2024

Japan was among the first countries to establish diplomatic relations with Malaya (then Malaysia). On 9 September 1957, nine days after Malaya achieved independence, Japan opened its embassy in Kuala Lumpur. The introduction of the Look East Policy (LEP) in 1982 strengthened the existing Malaysia-Japan bilateral relations. The main objective of this study is to examine the nature of the bilateral relationship between Malaysia and Japan during the implementation of the Look East Policy (LEP) and to identify the mutual benefits obtained by both countries in the implementation of LEP 2.0. This study adopted a qualitative analysis method by conducting intensive interviews and focus group discussion involving 13 informants who were directly involved with the implementation of LEP. The study found that, among other things, while LEP made the good practice of the Japanese people as the main driving factor, it also included the Japanese work culture, discipline, ethics, integrity, accountability, management and strategic partners. Three decades after the implementation of LEP in Malaysia, LEP took up a notch with the introduction of the Second Wave of LEP in 2012. Otherwise known as LEP 2.0, it prioritised new areas in line with technological developments in the millennial era. In line with that, LEP 2.0 also focused on the context of mutual benefit (common interest) for both countries especially in Halal hub industry and tourism.
Kajian Faktor Sosioekonomi dalam Meningkatkan Nilai Komersial Tanaman Sawit dan Pembangunan FELDA
Authors: Tahir Zurinah , Rahim Nurfarah Izzatul Syahila , Idris Muhammad Yusuf , Ishak Suraiya , Zakaria Siti Radiaton Adawiyah , Ahmad Saidi Zurina
Published: February 2024

FELDA merupakan singkatan bagi Federal Land Development Authority yang ditubuhkan bagi tujuan pembangunan tanah dan penempatan semula masyarakat luar bandar. Selain itu, FELDA juga memainkan peranan untuk membangunkan tanah berteraskan pertanian yang produktif dan berkualiti serta membangunkan petempatan penduduk luar bandar yang lengkap dengan pelbagai kemudahan. Penubuhan FELDA telah membuahkan hasil yang sangat memberansangkan kepada pembangunan luar bandar dengan kejayaannya memiliki tanah perladangan yang luas, mempertingkatkan pembangunan luar bandar beserta taraf hidup masyarakat. Walaubagaimanapun, masih terdapat beberapa isu yang timbul yang akan menjejaskan prestasi FELDA. Hal ini dimana felda menghadapi isu seperti model tanam semula yang tidak lestari, kehilangan tanah, pendapatan dan dividen tidak seperti yang diharapkan, kejatuhan harga sawit, peluang pekerjaan perumahan generasi kedua, dan aktiviti ekonomi yang terhad. Sehubungan dengan itu, objektif kajian adalah untuk mengkaji faktor-faktor sosioekonomi dalam peningkatan nilai komersial FELDA dan cadangan usaha membangunkan FELDA yang lestari. Kajian ini dilaksanakan di kawasan Felda Soeharto yang berbentuk kuantitatif yang menggunakan pendekatan kaedah tinjauan. Seramai 185 responden yang terlibat dalam kajian ini. Seterusnya, data yang didapati akan dianalisis ke dalam bentuk kekerapan, peratusan, skor min dan sisihan piawai. Hasil kajian menunjukkan sebahagian besar responden bersetuju dengan faktor-faktor sosioekonomi yang dinyatakan yang perlu diambil berat dalam meningkatkan nilai komersial felda. Kajian juga menunjukkan majoriti responden bersetuju dengan kesemua cadangan yang dinyatakan sebagai langkah menjadikan felda lebih lestari. Cadangan tersebut boleh dirujuk atau diaplikasikan oleh pihak FELDA dalam merealisasikan FELDA yang lestari. Kesannya, FELDA dapat memacu ke arah kemajuan, di samping mendukung matlamat mereka untuk membangunkan kawasan luar bandar.
Exploring Sustainability in Social Welfare Non-Governmental Organisations
Authors: Ijon Ruzaini , Azman Azlinda , Jamir Singh Paramjit Singh
Published: February 2024

Non-governmental organisations are acknowledged for their contributions by playing a vital role in promoting social justice and human rights, advocating for marginalised groups, and empowering them to voice their concerns. NGOs collaborate with both the government and private sector. NGOs enable communities to engage in decision-making processes. Additionally, they often work on the ground, providing direct support and resources to communities in need, thereby addressing immediate needs and working towards long-term solutions. They are critical in achieving sustainable development goals, like improving health and eradicating poverty. Despite the advantages, there is uncertainty because aspects of their sustainability have yet to be thoroughly studied, especially in the Malaysian context. This study was therefore carried out to evaluate the study objectives and determine whether the interview questions were appropriate. This study used an entirely qualitative method. Two staff members from one social welfare NGO were interviewed. The results reveal that the interview questions were appropriate for the study objectives, with some corrections needed. The corrections required were primarily in the wording and clarity of the questions, but overall, the qualitative method effectively gathered relevant information from the staff.
Influence of chemical composition of biomass on agglomeration process in fluidized bed of boiler E-75-3,9-440 DFT
Authors:   Northern (Arctic) Federal University named after M.V. Lomonosov, Terekhin A.P. , Maryandyshev P.A. ,   Northern (Arctic) Federal University named after M.V. Lomonosov, Lyubov V.K. ,   Northern (Arctic) Federal University named after M.V. Lomonosov
Published: February 2024

The combustion of biofuels in the fluidized bed is an attractive technology to process biomass. However, the technology of biomass combustion in fluidize beds is characterized by several problems associated with the agglomeration of bed material. The aim of the research is to study the influence of the chemical composition of biomass on the agglomeration process of the fluidized bed of the boiler unit E-75-3,9-440 DFT. The boiler burns a mixture of by-products of pulp and paper production to increase stability of the fluidized bed and the duration of boiler operation between periods of its deslagging. The study has tested two types of biomass burned in a mixture in a steam boiler unit E-75-3,9-440 DFT with a fluidized bed. The authors also have studied the samples of agglomerates, bed, and fly ash to find out more about the agglomeration process. The elemental composition of samples of bark-wood waste, sewage sludge, agglomerates and ash has been studied. Elements affecting the process of agglomeration of the fluidized bed have been identified. The results of the analysis have showed that essential ash- and slag-forming components in the sewage sludge are silicon, calcium, sulfur, and potassium, and in the bark wood waste the essential ash- and slag-forming components are calcium, potassium, and sodium. The main elements influencing the process of agglomeration of the fluidized bed are alkaline elements of potassium and sodium. The results obtained make it possible to predict the agglomeration of the fluidized bed, to select the fuel mixture in the proportion necessary to reduce the agglomeration process.
Study of influence of corona effect on 110 kV overhead line, lightning protection cable on energy characteristics of linear surge arresters during lightning overvoltages
Authors:   Peter the Great St. Petersburg Polytechnic University, Gulov A.M. , Kolychev A.V. ,   Peter the Great St. Petersburg Polytechnic University
Published: February 2024

The corona effect has a significant impact on calculations of lightning protection of the high-voltage overhead transmission line. The corona effect in the calculation of the transient process during a lightning overvoltages is often neglected due to the complexity of modeling the corona effect. The issue of the corona effect influence on the operation of non-linear surge suppressors installed on overhead lines hasn’t been sufficiently studied. The aim of the research is to evaluate the energy characteristics of linear surge arresters considering the corona effect on the overhead line. Simulation of the transient process on the overhead line during lightning overvoltages is carried out in the EMTP-ATP software. There is no corona model among the basic models in EMTP-ATP software. Thus, the corona model on overhead line wires using dynamic capacitances is under consideration. A model of corona on overhead line wires in EMTP-ATP is developed. Calculations of energy characteristics of linear surge arresters on an overhead line model considering the corona and without corona effect are carried out. The comparison of the obtained energy characteristics is carried out. The corona has a significant effect on the energy absorbed by the linear surge arresters during lightning strikes to the ground-wire if the front time of the lightning current impulse has a value near 1 s. When lightning strikes to the phase wire, the energy absorbed by the linear surge arresters is so great that the influence of the corona effect is insignificant. The corona model used in calculations in EMTP-ATP software has several limitations. Therefore, in future research it’s advisable to improve the model and simplify it, when calculating lightning protection of overhead lines.
Sensorless control system for high-frequency synchronous motor with incorporated magnets based on combined method of position estimation
Authors:   Electrical Drive Research and Technical Center “Vector”, Vinogradov A.B. , Gorelkin R.O. ,   Ivanovo State Power Engineering University
Published: February 2024

The known methods to estimate the position in drives based on synchronous motors with incorporated magnets have significant limitations in accuracy and noise immunity at high frequencies of the main voltage harmonic. Due to the requirements to improve the weight, size, and cost indicators of electric drives, it is relevant to design a sensorless synchronous drive operating with frequencies from 0 to 1000 Hz and more in the presence of a wide 5…10:1 speed control zone with a constant nominal power. The results of the study are based on the analysis of theoretical and experimental data obtained by other authors, as well as computer modeling in the Delphi software environment. The initial information for the simulation is obtained from the technical description guide and data of a full-scale experiment on a real-life object. A vector control system has been developed for a high-frequency synchronous motor with incorporated magnets without a mechanical coordinate sensor based on a combination of speed and position estimation methods by means of high-frequency injection and EMF calculation. The study of the developed system is carried out by means of modeling, considering the influence of interference in the measuring channels and the effect of cross-saturation of the magnetic circuit. The proposed structure and control algorithms have provided operability and high-quality control indicators sufficient to design a traction drive with a maximum frequency of 800 Hz or more and an area of operation in a constant rated power mode of at least 8:1 with a signal-to-noise ratio characteristic of typical current sensors.
Synthesis of a robust control system for a manipulation robot with polynomial controllers based on Gramian method
Authors:   Ivanovo State Power Engineering University, Abbyasov A.M. , Tararykin S.V. ,   Ivanovo State Power Engineering University, Anisimov A.A. ,   Ivanovo State Power Engineering University, Apolonsky V.V. ,   Ivanovo State Power Engineering University
Published: February 2024

Since manipulation robots can have several control channels, and their nonlinear coordinate relationships lead to internal parametric disturbances, along with variations in mechanical parameters, the use of Gramian methods for the synthesis of robust automatic control systems seems to be an effective way to improve the quality of control of such objects. When developing a robust control system for a manipulative robot, the method of polynomial modal control is used, local regulators are synthesized for both parts of the manipulator and a centralized controller is synthesized using an object model adjusted by the Gramian method. The calculations of the regulator based on the linear model of a two-link robot manipulator and the analysis of the transient characteristics of the movement of its links are carried out in the MATLAB software package. A method to synthesize a robust control system for a manipulation robot is proposed. It is based on a linearized mathematical model of a control object with a dynamic (polynomial) controller, aimed at changing the singular number of controllability and observability Gramians and subsequent calculation of a centralized controller to control the original nonlinear object. The use of a modified object model makes it possible to improve the robust properties and increase the speed of the control system for a nonlinear robotic object while maintaining the aperiodic nature of the processes under conditions of mutual influence of links and parameter variations. The proposed method makes it possible to improve the quality of control of manipulative robots and their productivity in conditions of intensification of technological production.
A Matter of Solidarity: Racial Redistribution and the Economic Limits of Racial Sympathy
Authors: Williams Tarah , Bloeser Andrew J.
Published: February 2024

The goal of horizontal redistribution is to provide economic resources to groups that have experienced discrimination and exploitation. In the United States, horizontal redistribution based on race remains controversial, particularly among white Americans. Not surprisingly, many white Americans oppose racial redistribution policies in some cases because of resentments they have toward racial outgroups. But this is not the only way that racial attitudes shape policy support. Chudy (2021) demonstrates that racial sympathy, or white distress over the misfortune of racial outgroups, can increase support for racially redistributive policies. However, supporting horizontal redistribution may be easier for individuals who are more economically secure, even when they are racially sympathetic. In this study, we explore whether the influence of racial sympathy is conditional on economic position. We expect that the influence of racial sympathy will be strongest among individuals who have higher incomes, as they are less concerned with competition over resources. Using the 2013 CCES, we use a newly developed measure of racial sympathy (Chudy, 2021) to study white Americans’ support for policies designed to provide resources to black Americans. Consistent with expectations, we find that whites with higher levels of racial sympathy have higher levels of support for such policies, but that this pattern is stronger among whites who are more affluent. For white Americans of lesser means, the relationship between racial sympathy and support for racial redistribution is weaker, likely because of concerns for their own relative economic status.
The delayed effect of rotenone on the relative content of brain isatin-binding proteins of rats with experimental parkinsonism
Authors: Buneeva O.A. , Kapitsa I.G. , Kazieva L.Sh. , Vavilov N.E. , Zgoda V.G. , Medvedev A.E.
Published: February 2024

Isatin (indoldione-2,3) is an endogenous biological regulator found in the brain, peripheral tissues, and biological fluids of humans and animals. Its biological activity is realized via isatin-binding proteins, many of which were identified during proteomic profiling of the brain of mice and rats. A number of these proteins are related to the development of neurodegenerative diseases. Previously, using a model of experimental Parkinsonism induced by a seven-day course of rotenone injections, we have observed behavioral disturbances, as well as changes in the profile and relative content of brain isatin-binding proteins. In this study, we have investigated behavioral responses and the relative content of brain isatin-binding proteins in rats with rotenone-induced Parkinsonism 5 days after the last administration of this neurotoxin. Despite the elimination of rotenone, animals exhibited motor and coordination impairments. Proteomic profiling of isatin-binding proteins revealed changes in the relative content of 120 proteins (the relative content of 83 proteins increased and that of 37 proteins decreased). Comparison of isatin-binding proteins characterized by the changes in the relative content observed in the brain right after the last injection of rotenone (n=16) and 5 days later (n=11) revealed only two common proteins (glyceraldehyde-3-phosphate dehydrogenase and subunit B of V-type proton ATPase). However, most of these proteins are associated with neurodegeneration, including Parkinson's and Alzheimer's diseases.
Early or mild appendicitis on CT imaging and its correlation with a negative appendicectomy: an observational retrospective study
Authors: Basa Matthew L. , Convie Liam
Published: February 2024

Background: A computerized tomography scan is frequently performed to confirm or exclude appendicitis. The interpretation of such CT scans is crucial in determining which patients should be offered surgery. In a subset of patients with undifferentiated abdominal pain, the radiological diagnosis of “early” or “mild appendicitis” is encountered. It is unclear, based on the current literature, how to manage this entity and hence it may be exposing patients to unnecessary surgery. This raises the question if “early” or “mild appendicitis” on CT imaging correlates with an increased rate of negative appendicectomies.
Methods: All laparoscopic appendicectomies from 2018 to 2023 at a single Australian tertiary hospital were reviewed retrospectively for pre-surgical imaging, appendix histopathology, age, gender, and white cell count. The CT early/mild appendicitis group was compared with the CT uncomplicated appendicitis group.
Results: Of 599 patients who had uncomplicated appendicitis on CT imaging, 63 of these patients received a diagnosis of early or mild appendicitis. Twenty-two in this group had a normal appendix on histological assessment. The “early” or “mild” appendicitis group had a significantly increased likelihood (OR>10, p<0.001) of having a normal appendix on histology, compared to the CT uncomplicated appendicitis group. Women and lower WCC were associated with early appendicitis (p<0.05).
Conclusions: Results of this study suggest that the diagnosis of “early” or “mild appendicitis” on CT imaging results in a greater number of negative laparoscopic appendicectomies.
Internal hernia a preoperative diagnostic challenge in virgin abdomen: case report
Authors: Montero-Puga Jesús A. , Pat-Cruz Francisco J. , Arredondo Guillermo Padrón
Published: February 2024

Internal hernias are classified in congenital or acquired. Congenital arises from abnormalities during embryonic development, whereas acquired result from trauma, surgical procedures, or another. Gastric surgical procedures can increase susceptibility to internal hernias. A 85-year-old female, denies previous surgeries. Went to the emergency department due to vomiting, adding colicky abdominal pain. Was discharged with a diagnosis of acute gastroenteritis. Came back 12 hours after discharge due to mesogastric pain accompanied by general malaise, abdominal distention and hyporexia, reporting a lack of evacuation. She was algid, pale, abdomen globose, distended, tympanic colonic frame, peristalsis increased. An evaluation was requested from general surgery for probable appendicitis in the elderly vs. secondary ileus. Went to operation room, finding an internal hernia. Transomental herniations are rare conditions. An abnormal omental opening can be either acquired following abdominal surgery, trauma, inflammatory conditions, low body mass index (BMI) and be associated with a long mesentery, intestinal malrotation, or abnormal peritoneal attachments. Although internal hernias are extremely rare (between 1 and 4% of acute or intermittent intestinal obstructions) it is essential not to miss this diagnosis, even in patient whit no previous surgeries. Management of omental hernias are critical as the postoperative mortality rate is over 30% and even 50% if strangulation is present. The lack of current literature on this rare condition, particularly for lesser omental hernias (because can present with nonspecific signs and symptoms) makes diagnosis and management difficult.
Application of Meek micro-grafting technique in severe burn injury: a case report
Authors: Keat Benjamin Choo Wee , Sukur Salmi Binti Mohamed
Published: February 2024

Wound closure is often a challenge in patients with major burns due to the limited amount of healthy skin available for harvesting and grafting. As a result, this often yields severe morbidity and mortality amongst said patients. This case report presents the successful use of the Meek micro-grafting technique on a patient with extensive major deep dermal to full-thickness burn injuries in the Burn Unit of the Kuala Lumpur Hospital of Malaysia. The Meek micro-grafting method, involves the creation of micro-grafts from a small and limited donor site, and proved to be effective in promoting wound healing and minimizing donor site morbidity.
Never too late: Lynch syndrome diagnosed at the age of 71
Authors: Dupont Margarida S. , Guidi Gonçalo J. , Tenreiro Nádia , Marques Rita A. , Pinto-de-Sousa João A.
Published: February 2024

Lynch syndrome is an autosomal dominantly inherited disease characterized by a mutation in one of the deoxyribonucleic acid mismatch repair genes. In consequence of this defect, patients have higher risk of developing early colorectal and endometrial cancer (among others types of cancer). This syndrome accounts for 3% of all colorectal cancers and 10% to 19% of colorectal cancers diagnosed before the age of 50. Total abdominal colectomy is the best treatment for patients with Lynch syndrome who develop colorectal cancer.
Analyzing the medical use of cannabis for cancer patients: a critical perspective
Authors: Patel Rushin , Patel Mrunal , Patel Zalak , Kavani Himanshu , Patel Darshil , Shaikh Safia
Published: February 2024

The utilization of cannabis in oncology presents a multifaceted approach to addressing the complex challenges associated with cancer treatment. With roots tracing back to ancient medicinal practices, cannabis contains numerous compounds, including cannabinoids like tetrahydrocannabinol (THC) and cannabidiol (CBD), that interact with the body's endocannabinoid system. These interactions offer potential therapeutic benefits, ranging from antiemetic and analgesic effects to the inhibition of cancer growth processes. While clinical evidence supports the efficacy of cannabinoids in managing symptoms and enhancing the quality of life for cancer patients, caution is warranted due to potential interactions with conventional medications. Understanding the mechanisms of action, optimal administration routes, and potential side effects is crucial for integrating cannabis into personalized cancer care plans. By navigating these considerations thoughtfully, medical practitioners can harness the therapeutic potential of cannabis to complement traditional cancer treatments and improve patient outcomes in the field of oncology.
PRÁTICAS FUNERÁRIAS NO CEMITÉRIO DOS PRETOS NOVOS
Authors: Santos Andrei , Lessa Andrea
Published: February 2024

Este artigo apresenta os resultados das análises de alteração térmica nos remanescentes dentários do Cemitério dos Pretos Novos (CPN), designado para receber os corpos dos cativos africanos recém-chegados no Rio de Janeiro durante os séculos XVIII e XIX. A queima dos corpos era uma prática recorrente, performada a fim de otimizar o espaço em função da demanda cada vez maior de sepultamentos, bem como de ocultar o terrível cheiro de decomposição. Os resultados demonstraram que foram queimados, em sua maioria, à temperatura de calcinação (≥ 650 ºC) e em variados estágios de decomposição. Buscou-se, através desta pesquisa, ampliar o entendimento acerca do tratamento dado aos mortos, e ainda, lançar luz sobre a estrutura de poder e violência representada por este espaço funerário.
Socially-Psychological Problems of Innovative Activity
Authors:   Saratov State University, Ponukalin A. A.
Published: February 2024

In article it is underlined necessity of working out of the psychological theory of individual innovative activity, and also construction of model of the innovative person.