bluuebunny/crossref_metadata_2025 huggingface dataset:
Downlink Learning-aided Precoding for Cell-Free networks Specially D esigned for beyond 5G Communication System
Authors:   MDE Deptt, The NorthCap University, 122017, Gurgaon, India, Deshpande Swapnaja , Aggarwal Mona , Sabherwal Pooja , Ahuja Swaran
Published: April 2024

Objectives: With increase in number of access points in Cell-Free Massive Multiple Input Multiple Output (CFMM) system, spatial complexity of calculating precoding vector increases with traditional precoding schemes. So, to reduce computational complexity, network cost, and run time, a new deep learning -aided precoder is specially designed for CFMM system. The performance of downlink (DL) Cell-Free Massive Multiple Input Multiple Output (CFMM) system operating under Rayleigh fading channel model is analyze using new deep learning-based precoding scheme. Methods: We introduce new deep learning-aided precoder and an improved version of basic scalable pilot assignment algorithm which enhances system performance. We derive closed- form expression for average DL spectral efficiency (SE) for the proposed scheme, which is then compared with Minimum Mean Square Error Successive Interference Cancellation (MMSESIC), Regularized Zero Forcing (RZF), Least Square (LS) and Maximum Ratio (MR) combining techniques. We analyze the proposed scheme with perfect channel state information (CSI), instantaneous CSI, coherent transmission, non-coherent transmission, different pilot configuration. Findings: The spectral efficiency obtained with CFMM-MMSESIC and the proposed scheme is 3 bits/s/Hz, and 2.5bits/s/Hz respectively, which clearly indicates the difference of 20 % only. So, the proposed scheme gives near optimal results, and we can use simple linear combining techniques instead of complex non-linear combining techniques. Also, the proposed scheme with coherent data transmission gives performance curve, which is very close to MMSESIC scheme as desired. The performance of the proposed system is improved by reducing run time and computational complexity as compared to conventional linear precoding schemes. Novelty: The proposed precoder improves performance by reducing run time and computational complexity. Advanced pilot assignment algorithm enhances performance by reducing pilot contamination. Keywords: Cell-Free Massive Multiple Input Multiple Output, Pilot Contamination, Precoding, Minimum Mean Square Error Successive Interference Cancellation, Maximum Ratio, Regularized Zero Forcing (RZF), Least Square (LS)
Lict k-Domination in Graphs
Authors:   Assistant Professor, Department of Mathematics, Sangameshwar College (Autonomous), Solapur, Maharashtra, India, Gade Suahas P , Vyavahare Dayanand K
Published: April 2024

Objectives: In this study, we find lict -domination number of various types of graphs. Methods: Let be any graph, a set is said to be an -dominating set of lict graph if every vertex is dominated by at least vertices in , that is . The Lict -domination number is the minimum cardinality of -dominating set of . Findings: This study is centered on the lict -domination number of the graph and developed its relationship with other different domination parameters. Novelty: This study introduces the concept of “Lict -Domination in Graphs”. It obtains many bounds on in terms of vertices, edges, and other different parameters of . Keywords: Domination number, k-domination number, Lict graph, Lict k-domination number, Total domination number, Independent domination number
DynAuthRoute: Dynamic Security for Wireless Sensor Networks
Authors:   Research Scholar, Department of Computer Science, Rajah Serfoji Government College (Autonomous), Affiliated to Bharathidasan University, Tanjore, Tamil Nadu, India, Elamurugu V , Evanjaline D J
Published: April 2024

Objectives: The research aims to design an architecture for secure transmission of data in wireless sensor networks. Methods: The method involves three main pillars: authentication, data encryption, and dynamic routing. Extensive simulations have been conducted to evaluate the suggested method in terms of energy consumption, memory footprint, packet delivery ratio, end-to-end latency, execution time, encryption time, and decryption time. Findings: For authentication, a dynamic key is used to power an improved salt password hashing method. Data encryption is performed using format-preserving encryption (FPE) with the appended salt key. Dynamic routing is implemented using a cluster-based routing technique to enhance network efficiency in terms of power consumption and security. The execution time for MD5 ranges from 15 to 22 milliseconds, while for SHA-1 it ranges from 16 to 23 milliseconds and for the proposed salt key generation it is 1 to 5 milliseconds. Similarly, in terms of energy consumption, memory footprint, packet delivery ratio, end-to-end latency, execution time, encryption time, and decryption time the proposed method shows promising results in ensuring the integrity and security of transmitted encrypted data. Novelty: The presents a novel architecture with enhanced cluster head-based selection algorithm that combines dynamic key-based authentication and secure data routing to establish a safe environment for data transmission in wireless sensor networks. This research works offers a method for encrypting text with a dynamic salt key that is safe, energy-efficient, and lightweight. Keywords: Wireless Sensor Network, Dynamic Key, Authentication, Hash function, Salt algorithm, Dynamic routing, Node clustering, Format-preserving encryption
Synthesis of Slogans with Predicted Sentiment from Twitter using a Novel Hybrid SDG-LSTM Model for Election Campaigns
Authors:   Research Scholor, Computer Engineering Department, Thadomal Shahani College of Engineering, Bandra (W), Mumbai, Maharashtra, India, Sangle Shailesh S , Sedamkar Raghavendra R
Published: April 2024

Objectives: The primary objectives of this study encompass the enhancement of election campaign strategies through the synthesis of sentiment-laden slogans derived from Twitter data. This is achieved by employing a novel Hybrid SDG-LSTM model, aiming to improve sentiment prediction accuracy and communication efficacy in the context of political campaigns. Methods: The process of slogan generation relies on sentiment prediction derived from sentiment-laden tweets. The proposed sentiment analysis methods for election campaign slogans encompass Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU). A novel approach is introduced through the Hybrid SDG-LSTM model, leveraging the combination of Self-Distillation Guidance (SDG) with LSTM to enhance sentiment prediction accuracy and efficiency. This innovative method aims to provide a more robust and effective means of analyzing and generating slogans for election campaigns. Findings: The performance assessment of Deep Learning models, GRU, LSTM, and the Hybrid architecture, unveiled compelling outcomes. GRU showcased a commendable accuracy of 92.98%, while LSTM impressed with 95.91%. Remarkably, the Hybrid Spatial LSTM with GRU surpassed both, achieving perfection with 100% accuracy, precision, recall, and an exceptionally low loss of 0.0. These results underscore the superior performance and efficacy of the Hybrid model in sentiment analysis tasks. Novelty: The novelty of this research is encapsulated in the introduction of the Hybrid Spatial LSTM with GRU model, which demonstrates groundbreaking 100% accuracy, surpassing current models. This innovation capitalizes on the synergistic fusion of spatial attention mechanisms and the dynamic nature of GRU, marking a substantial advancement and establishing a new benchmark for highly accurate predictions in the domain of sentiment analysis. Keywords: ­Slogan Generation, Sentiment Analysis, Election Campaign, Deep Learning, LSTM, GRU
M/M/1 Interdependent Queuing Model with Vacation and Controllable Arrival Rates
Authors:   PG & Research Department of Mathematics, St. Joseph’s College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli, Tamil Nadu, India, Subhapriya S P , Thiagarajan M
Published: April 2024

Objectives: Rather than working nonstop in the service area, servers take vacations when they have no clients. To determine the probability and features of the queuing system, this study introduces controllable arrival rates and interdependency in the system's service and arrival processes. It also performs a numerical verification of the results. Methods: A recursive method is employed to solve the steady-state probability equations, yielding explicit iterative formulas under the assumption that a single server provides services to all clients. Here, customer arrivals are controlled as either faster or slower, with Poisson assumed by default. Findings: For this model, steady-state solutions and characteristics are derived and explored, and some numerical analysis is carried out using MATLAB. All the probabilities are expressed in terms of , which indicates the system when empty. The movement of the average number of customers in the system and the expected waiting time, and respectively, of the customers in the system is investigated through a graph. and decrease when dependence service rate, and faster arrival rate increase. Additionally, increases and decreases when the slower arrival rate increases. Novelty: Although there have been studies on vacation in queuing theory, this new approach aims to bridge the gap between vacation and interdependency in the arrival and service process, as well as controllable arrival rates. When vacations with predictable arrival rates are utilised advantageously for the benefit of both the server and the client, waiting times may be minimised and the most practical, economical service can be provided. Keywords: Markovian Queuing System, Vacation, Loss and Delay, Finite Capacity, Interdependent Arrival and Service Rates, Varying Arrival Rates, Bivariate Poisson Process
Investigation into Optimizing of Machining Parameters using RSM for Si3N4 -TiN Ceramic C omposites by WEDM
Authors:   Research Scholar, Department of Mechanical Engineering, Maharashtra Institute of Technology, Aurangabad, Maharashtra, India, Farooqui Mohammed Naser , Patil Nilesh G , Gore Abhay S
Published: April 2024

Objective: To maximize the cutting rates and to minimize and width of cut (Kerf) by optimizing the process parameters for wire EDM machining of Si3N4-TiN ceramic composite utilizing zinc coated brass wire optimizing the process parameters by applying Response Surface Methodology using Central Composite Design Technique. Methods: The input parameters, namely, peak current, short pulse duration, and pulse on time duration were varied over five different levels, in order to conduct the studies. The distinctive response characteristics, such as cutting rates and width of cut, are investigated, and optimized using Response Surface Methodology (RSM), which is based on Design of Experiments (DOE). ANOVA was applied to both predictive modeling and the identification of significant variables in order to assess the effectiveness of the model. In the experiments, a coated brass wire electrode was employed in the center composite design. Findings: Comparing the cutting rates with a plain brass electrode, the increases are 4.39% and 16.67%, respectively. The pulse-on time and pulse current are recognized as the two most crucial input parameters; cutting rate rises with increasing current. A coated brass wire with negative tool polarity achieved a maximum cutting rate of 69.72 mm2/min at a peak current of 320A, 1.2 μs of on time pulse duration, the ideal Kerf of 0.35mm was obtained. The % error of RSM predicted and actual is 5.36% for cutting rate and 1.05% for Kerf. Novelty: There is no literature available on the machining of Si3N4-TiN using coated brass wire, for Kerf width and cutting speeds. The zinc-coated brass wire electrode improves the cutting rates and reduces the Kerf significantly for Si3N4-TiN ceramic composite. Keywords: Si3N4-TiN, CR, Kerf, RSM, ANOVA
i-PomDiagnoser: A Real-Time Pomegranate Disease Management System
Authors:   Research Scholar, Department of Computer Engineering, Thakur College of Engineering and Technology, Mumbai, Maharashtra, India, Nirgude Vaishali , Rathi Sheetal
Published: April 2024

Objectives: Designing and developing i-PomDiagnoser: a real-time pomegranate disease management system for disease detection, classification, prediction, recommending preventive measures, and analyzing abrupt climatic changes and their impact on pomegranates. Methods: A data collection framework has been designed and developed using an agriculture drone, sensors, camera, and other equipment to collect real field pomegranate images and micro-level parameters. Comprehensive Exploratory Data Analysis (EDA) and Feature Selection (FS) processes were carried out to improve the accuracy of disease classification and forecasting models. ML-based Binary, Multimodel, and Multilabel classifiers were implemented for disease classification. The models were trained on 11 years of historical data and tested on 5 months of actual field data. A hybrid pomegranate disease forecasting model has been developed for accurately forecasting micro-level parameters for the next 45 days to predict diseases. Findings: Micro-level (weather, soil, water) parameters specific to the agro-climatic zone were collected. The five most prominent distinct diseases are considered for experimentation namely Bacterial Blight (Telya), Anthracnose, Fruit spot, Fusarium Wilt, and Fruit borer. The proposed Improved Ensemble Multilabel Classifier (i-Ensemble-MLC) with a modified voting scheme has achieved a high classification accuracy of 95.82%, addressing model overfitting and data imbalance. Moreover, the hybrid pomegranate disease forecasting model, combining LSTM and i-Ensemble-MLC, demonstrated better performance with minimal error rates (MSE: 0.003, RMSE: 0.071, MAE: 0.048, R2: 0.7) compared to the existing model1 (MSE:0.037, MAE:0.028). Novelty: The novelty lies in the creation of the all-in-one model, i-PomDiagnoser. This innovative system helps the farmers to correctly detect and predict the most prominent diseases of pomegranate. Keywords: Pomegranate, Agriculture, Disease Forecasting, Machine Learning, Deep Learning
Optimizing Cellular Manufacturing Systems Through Multi-Objective Cobot Coordination and Tool Allocation
Authors:   Research Scholar, VTU, Belagavi, Karnataka, India, Saleemuddin S M , Hudgikar Sanjeev Reddy K
Published: April 2024

Objectives: This study aims to enhance cellular manufacturing systems by optimizing cobot and tool assignments, maximizing flexibility, and minimizing production time, workload imbalances, energy consumption, error rates and rework. Methods: This study employs a sophisticated multi-objective optimization approach, integrating constraints into the cellular manufacturing system using advanced linear or integer programming techniques. The model is designed to dynamically adapt in real-time, allowing for flexibility in response to evolving production needs. We systematically evaluate cobot and tool assignments, balancing conflicting objectives within a comprehensive mathematical framework. The optimization process is fine-tuned to consider machine capacities, part type assignments, and tool compatibility, ensuring the practicality and realism of the proposed solutions. The overarching goal is to identify optimal configurations that minimize production time, workload imbalances, energy consumption, error rates and rework while maximizing system adaptability. Findings: The optimal cobot and tool assignments, determined through the multi-objective optimization model, yielded substantial improvements across critical metrics compared to a scenario without cobots. This data showcases a 26% reduction in production time, a 20% decrease in workload imbalance, a 20% improvement in flexibility, a 28% reduction in energy consumption, and a 26% decrease in error rates and rework when utilizing the proposed multi-objective optimization approach. These tangible improvements underscore the practical benefits of integrating cobots in cellular manufacturing systems.Top of Form Novelty: This study introduces a novel multi-objective optimization approach for cellular manufacturing, enhancing adaptability and efficiency through strategic cobot and tool assignments. Keywords: Cellular Manufacturing Systems, Cobots, Tool Assignment, Multi­Objective Optimization, Production Time, Workload Balancing, Energy Consumption, Error Rates, Flexibility
3,3-Diaminobenzidine Tetrahydrochloride (DAB) Immunohistochemistry on Mouse Brain Tissue Sections v1
Authors: Erb madalynn.erb
Published: April 2024

This protocol details the staining for free floating mouse brain sections.
Assaying NLRP3-mediated LDH and IL-1β release v1
Authors: JW Harper , R R Hollingsworth Louis
Published: April 2024

A general protocol for assaying NLRP3 activation through the downstream release of LDH and IL-1β from cells. Included are protocol for iBMDMs and THP-1 macrophages.
Observational assessment of the hygienic conditions of three fairs in the municipality of Manaus, AM, Brazil
Authors: Lima L. E. S. , Oliveira M. A. , Bussons I. N. B. , Gomes M. F. S. , Oliveira A. T. , Bussons M. R. F. M.
Published: April 2024

The consumer fishing operation can be engaged in fishing problems in consumer health, so the present work as structural conditions and manipulation of the municipal fair of Manaus. Observations were made at three Centro, Santo Antônio and Betânia district fairs. Note that the hygienic and sanitary conditions of the workers are precarious; in one of the fairs, it was possible to verify the protective equipment such as gloves, caps, the presence of animals near the window where the fish is exposed for sale, styrofoam boxes used for the storage in an inappropriate state, dirty and the company of parcels with fish on the floor without any secondary packaging for protection. Therefore, it is concluded that it is necessary to train users on the dangers that can affect the lack of adequate handling of the consumer's health, which may interfere directly with the local fishing sector.
Patrimonio, cultura e identidad en Cuba a través del patakí
Authors:   University of Sancti Spiritus, Soriano Delgado Yuricsel , Cordiés Jackson Marta Emilia ,   University of the East
Published: April 2024

De las historias orales que conforman el patrimonio inmaterial de Cuba, sobresale el patakí. En este trabajo se fundamenta la importancia que este posee fuera de su contexto sagrado, pues si bien tiene una alta significación religiosa y filosófica, a través de él se conserva un significativo valor cultural e identitario. La muestra que se presenta fue expuesta por un cuentero popular, figura que dentro de su repertorio conserva estas narraciones. La metodología propuesta hizo posible demostrar la importancia y el valor que mantiene el patakí en la nación cubana.
Discourse of Foreign Digital Media: Analysis of the 2023 Turkish Presidential Election Coverage
Authors: Özlü Özden
Published: April 2024

This study examines the complex dynamics of communication in the changing field of journalism influenced by the use of media. It specifically focuses on how thoughts and perceptions are expressed in this evolving landscape. Information and communication technologies significantly influence journalism by rapidly disseminating news, updates, and societal impacts. Utilizing critical discourse analysis, the study aims to reveal systematic language usages and uncover latent meanings beyond news texts. Focused on the 2023 Turkish Presidential Election, news texts from four prominent international newslets Al Jazeera, BBC, CNN, and Euronews are analyzed. The comprehensive analysis of international media coverage investigates the interplay of linguistic and thematic choices in shaping narratives. With a dual focus on macro and micro levels of discourse, the study uncovers diverse approaches among foreign media outlets. Each outlet adopts a distinctive thematic approach at the macro level, emphasizing key figures and sociopolitical contexts. Al Jazeera spotlights competition, BBC underscores post-election polarization, CNN focuses on Erdogan's victory, and Euronews provides insights into national challenges. Visual elements, like photographs, contribute significantly to framing events, offering nuanced political messaging. Micro-level analysis explores linguistic choices, syntax, and rhetoric, emphasizing the active voice to underscore leaders' agency. Deliberate use of the passive voice in presenting election results maintains a neutral tone. The way sentences are structured and the cause-and-effect connections help readers understand political developments by providing context. The study underscores the importance of media literacy in decoding political event representations, emphasizing the multifaceted complexities of media discourse.
Kapsamı, Yöntemi ve Tarihsel Gelişimi Bağlamında Sınır Sosyolojisi
Authors: Özbey Kerem
Published: April 2024

Sosyolojinin yeni bir alt dalı olarak 1990’lı yıllarda ortaya çıkan sınır sosyolojisi, sınır ve toplum ilişkilerinin karşılıklı etkileşimini konu edinen ve sınır ve toplumsal değişme arasındaki ilişkiyi anlamayı amaçlayan bir bilimsel disiplindir. Soğuk Savaşın son bulması ve Sovyetler Birliği’nin çöküşü, Berlin Duvarı’nın yıkılması, yeni devletlerin ortaya çıkması, Avrupa Birliği’nin genişlemesi, küreselleşme ve teknolojik gelişmeler sınır sosyolojisinin ortaya çıkmasında doğrudan doğruya etkili olmuştur. Söz konusu gelişmeler sınırların yeniden düşünülmesini gerektirmiştir. Toplumların kuruluşunda sınırların nerede yer aldığı, sınırların kimlik ifade etmede nasıl bir role sahip olduğu, sınırların nasıl algılandıkları ve sınırötesi ilişkilerin nasıl şekillendiği sınır sosyolojisinin temel sorularını oluşturur. Bu çalışmanın temel sorunsalı, sınır sosyolojisinin bağımsız bir disiplin olarak gelişiminde kapsamının, yönteminin ve tarihsel gelişiminin nasıl bir rol oynadığıdır. Bu sorunsal çerçevesinde sınırların farklı anlamları içerdiği, psikolojik, sosyolojik, siyasal, ekonomik, kültürel, dinsel, etnik, dilsel, toplumsal cinsiyet, mekân, güvenlik, milliyetçilik, göç ve küreselleşme gibi boyutları taşıdığı ve değişik toplumsal işlevlere sahip olduğu görülmüştür. Sınır sosyolojisinin sosyolojinin bir alt dalı olarak gelişim gösterdiği, sosyologların sınır ve toplum ilişkilerini görünür kıldıkları, sınırların tarihsel bir perspektiften inşa edildiği, genel sosyolojinin yanı sıra sınır sosyolojisinin kendisine özgü yönteminin olduğu ve sınırlarla ilgili sosyolojik çalışmaların bir tarihsel süreklilik taşıdığı tespit edilmiştir. Bu bağlamda, sınır sosyolojisinin sosyolojide yeni bir alan olarak geliştiği anlaşılmıştır.
Validation of the Russian version of Spine Oncology Study Group Outcomes Questionnaire
Authors: Tsyrenova E. B. , Shchelkova O. Yu. , Sofronov D. I. , Borzov K. A. , Valiev A. K. , Kulaga A. V. , Matanova V. L.
Published: April 2024

Introduction. Surgical intervention is the only or main component of combination treatment of the majority of malignant tumors of the spine. Pronounced pain syndrome and neurological deficit caused by spinal tumors significantly worsen disease progression, decrease patients’ quality of life.

Aim. To develop a Russian-language version of a specialized questionnaire to study the quality of life of patients suffering from tumor lesions of the spine Spine Oncology Study Group Outcomes Questionnaire (SOSG-OQ).

Materials and methods. In 82 patients with tumors of various parts of the spine who are treated at the N.N. Blokhin National Medical Research Center of Oncology, psychometric evaluation of the SOSG-OQ questionnaire was performed confirming its convergent validity and reliability–consistency (Cronbach’s α = 0.899).

Results. Exploratory factor analysis confirmed adequacy of the questionnaire’s structure and its conformity to the basic factor model. Instruments of the validated Russian version of the SOSG-OQ questionnaire (text and data analysis instructions) for its use in clinical practice are presented. Results obtained using the new SOSG-OQ questionnaire show a significant decrease in quality of life of patients with spinal tumors. Additionally, after surgery patients described their health-related quality of life significantly higher than prior to treatment.

Conclusion. Validated Russian version of the SOSG-OQ questionnaire can be recommended for application in oncological clinic for more precise and differentiated evaluation of performance status, emotional condition, experience of patients, evaluation of life circumstances associated with the disease to promote more targeted and personalized psychological care.
Development of adaptive qualities of students in the course of boxing classes
Authors: Sheyder Aleksey D.
Published: April 2024

The paper considers the development of the student’s adaptive qualities by means of boxing with elements of problem-situational learning as qualities that positively affect adaptation to a new social space. The aim of this study is to experimentally check the influence of physical education by means of boxing with elements of problem-situational learning on the development of adaptive qualities of students in the educational space of a higher educational institution. An assessment of the emerging alarming situation was carried out with the help of a questionnaire specially adapted for this purpose «Hospital Anxiety and Depression Scale (HADS)» and «Psychical Stress Scales» (PSM-25) of Lemours – Tiesier – Phillon. The survey was conducted among students of Samara State Technical University (SamSTU), the first group of which attended elective boxing classes and the second group of students attended standard physical education classes. In the course of the study, the concept of adaptive qualities of a student was clarified, as well as the influence of physical education by means of boxing on the development of adaptive qualities of students in the educational environment of the university was established. Namely, an empirical study conducted among students of SamSTU showed that students attending elective boxing classes with elements of problem-situational training are more adapted to stressful situations, what plays an important role in the development of a future engineer personality.
Psychological health of the future teacher in the process of professional development within the framework of the ecopsychological approach
Authors: Filonenko Irina S.
Published: April 2024

The development of a high level of psychological health among university students is closely connected with an active life and professional position, or in other words, with their subjectivity. In conditions of the ecopsychological approach to the development of the psyche, the subjective qualities of the student must go through seven stages. According to the principle of fractality, the effectiveness of the development of each stage is determined by the development of seven cognitive-regulatory abilities in their subject. The importance of strengthening the psychological health of students is especially relevant today, when the main indicator of personality-oriented education is the interaction and mutual development of the personalities of the teacher and student, and the development of a system of professional values and goals of future teachers begins during university training. The research is aimed at identifying priority vectors of psychological health among university students at various stages of subjectivity formation, and their relationship with cognitive-regulatory abilities that ensure the formation of each of the stages, as well as to determine the development of the structure of psychological health. The study was conducted by methods of diagnostics of the stages of subjectivity development, the ability to perform educational actions and "Individual model of psychological health". This pilot study shows the relationship between the components of the model of psychological health of future teachers, the process of subjectivity development and fostering the ability to perform educational actions during their studies at the university. If at the beginning of the training, the interaction of students in a group was at the initial stage, students were just beginning to show their individuality, reveal their creative abilities, then by the end of the training, communication in a group, joint activity, creative expression and self-expression became more significant.
Detection of Various Diseases in Fruits and Vegetables with the Help of Different Deep Learning Techniques
Authors: Acar Emrullah , Özcan Sevil
Published: April 2024

Fruit and vegetable diseases have an important place in the food sector in terms of sustainable agricultural policies. Thus, ıt affects tissues, targeting and negatively impacting the food supply. In this study, Two separate Deep Learning (CNN, AlexNet) models were employed to detect this difference, visual damage and surface marker seen in fruits and vegetables. 22 strawberries and 18 tomato images were used for this analysis, and than data augmentation was implemented 600 images out of 40 images using the image reproduction broadcast. As a result, 83.3% success was achieved.
Computer simulation model of signal propagation processes in coaxial cable
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Pliushch Oleksandr , Bolshakov Andrii ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: April 2024

Background. The paper studies processes of signal propagation in a coaxial cable as a type of artificial long lines. Utilization of analytical methods as well as natural experiments for analyzing these processes is rather difficult and not sufficiently descriptive. The aim of the paper is to develop a simulation computer model of coaxial cable represented as an artificial long line and to use this model for studying processes in it. Main attention is paid to clarify impact of irregularities in the line and matched signal transmission from the source to the load with minimal losses. Methods. Methods of computer simulation as well as complex systems analysis are used. Results. To achieve the set goal, the paper solves the tasks of a coaxial cable equivalent circuit design as an artificial long line, which includes signal source with a certain internal impedance, the line itself with a possibility to vary its parameters and the load; representation of the processes in the developed line with the help of Ohm’s and Kirchhoff’s laws in terms of differential equations of continuous time; transition from the system of differential equations to the one of difference in order to use them for computer simulation; design of a computer simulation model on the base of the obtained system of difference equations; and trial of the computer simulation model in the scenario of signal propagation in the long line with irregularities. Computer simulation results that are obtained in the paper completely correspond to the theoretical notions related to the processes in long lines in different modes of their operation. The results have allowed one to assess numerically and qualitatively, and most impotently descriptively, impact of irregularities in the line on the optimal signal transmission in it. Сonclusions. Developed computer simulation model of a coaxial cable as an artificial long line can be used for tuition processes at universities and for design and modernization of these devices. Keywords: simulation computer model, coaxial cable, artificial long line, line irregularities, matched signal transmission
Anterior Abdominal Wall Endometriosis: A Series of Case Reports
Authors: Baklygina Elena A. , Pchelintsev Vadim V. , Markin Aleksey V.
Published: April 2024

INTRODUCTION: Endometriosis is a chronic, hormone-dependent, progressive and recurrent disease characterized by the existence of tissue outside the uterine cavity, similar to endometrium in the morphological and functional properties. This disease is gaining increasing medical and social significance due to its severe clinical manifestations and recurrent course, as well as a negative impact on the quality of life and working capacity of women. The incidence of abdominal wall endometriosis (AWE) that is referred to extragenital localization, is 0.3% to 3.5%. In most cases, it develops after cesarean section, less often after other gynecological operations (hysterectomy, removal of endometrioid ovarian cysts). Its recognition presents certain difficulties due to the necessity of differential diagnosis with postoperative hernias, ligature abscesses, hematomas and use of additional imaging methods. In this context, of interest is to study the clinical and history data, localization and management tactics for female patients with the anterior abdominal wall endometriosis.
AIM: Investigation of clinical presentation, diagnosis, treatment of one of the rarest and least studied forms of extragenital localization of endometriosis — AWE — and improvement of management tactics for patients with this pathology.
MATERIALS AND METHODS: A clinical analysis of AWE cases with several variants of its invasion was carried out in 7 female patients.
RESULTS: The age of the patients ranged from 27 to 39 years (median — 33 years). All the seven patients had a past cesarean section; the period after surgical delivery ranged from 3 to 7 years. Six patients reported pain in the area of the postoperative scar associated with the menstrual cycle, 1 noted the presence of a palpable formation of the anterior abdominal wall. During surgical treatment, excision of endometrioid infiltrates located in the area of the postoperative scar was performed, followed by histological verification.
CONCLUSION: Taking into account the relative rarity of AWE, the difficulty of its early identification, the need for differential diagnosis using additional examination methods, greater awareness of this disease is required among doctors of related specialties. Diagnostic alertness is especially relevant for patients with a history of surgical delivery if they have a formation in the area of a postoperative scar and a cyclic pain symptom in its projection.
Associations of Polymorphisms of NOD2/CARD15, CRP and FTO Genes with Cardiovascular Risk Factors, Damages to Target Organs and Cardiovascular Diseases in Patients with Ulcerative Colitis and Crohn’s Disease
Authors: Boyakov Dmitriy Yu. , Petrov Vadim S. , Nikiforov Aleksandr A. , Yakubovskaya Alina  G. , Kodyakova Ol'ga  V. , Ostyakova Veronika  A.
Published: April 2024

INTRODUCTION: The role of genetic factors in the development of cardiovascular diseases (CVD) in patients with inflammatory bowel diseases (IBD) is practically unknown.
AIM: To study the frequency of carriage of allelic polymorphous variants of NOD2/CARD15 (3020insC rs5743293, Gly908Arg rs2066845), CRP (+1444CT rs1130864), FTO (A23525T rs9939609) genes and to perform a comprehensive assessment of damage to the target organs, diastolic myocardial dysfunction of the left ventricle and CVD in patients with ulcerative colitis and Crohn’s disease living in the Ryazan District.
MATERIALS AND METHODS: The study involved 62 patients (41 (66%) women, 40.5 [33.5; 52.25] years old) with IBD (51 patients with ulcerative colitis, 11 patients with Crohn’s disease) in whom 3020insC and Gly908Arg polymorphisms in CARD15 (NOD2) gene, C1444T in CRP gene and А23525Т in FTO gene were determined using allele-specific polymerase chain reaction. After that, the frequency of carriage of their allelic variants and association with CVRFs, damage to the target organs (through evaluation of the arterial stiffness, pulse pressure, hypertrophy of the left ventricular myocardium, ankle-brachial index) and CVDs was evaluated.
RESULTS: According to the aims of the study, the frequency of carriage of allelic polymorphic variants of genes was determined: 3020insC in gene CARD15 (NOD2) rs5743293 85.5% — homozygote for allele 1, 14,5% — heterozygote; Gly908Arg in gene CARD15 (NOD2) rs2066845 93.5% — homozygote for allele 1, 6.5% — heterozygote; C1444T in gene CRP rs1130864 50% — homozygote for allele 1, 41.9% — heterozygote, 8.1% — homozygote for allele 2; А23525Т in gene FTO rs9939609 38.7% — homozygote for allele 1, 38.7% — heterozygote, 22.6% — homozygote for allele 2. The prevalence of arterial hypertension was 31%, of obesity by body mass index — 18%, by waist circumference — 29%, and of dyslipidemia — 53%. Statistically significant associations were found between: 1) hypercholesterolemia and Gly908Arg polymorphism in gene CARD15 (NOD2) rs2066845 (÷2 = 6.005; p = 0.014), 2) family history of early CVD and 3020insC polymorphism in gene CARD15 (NOD2) rs2066845 (÷2 = 4.561; p = 0.033), 3) arterial hypertension and 3020insC polymorphism in genеCARD15 (NOD2) rs5743293 (÷2 = 4.65; p = 0.031).
CONCLUSION: The prevalence of arterial hypertension, obesity and dyslipidemia in patients with IBD is considerably lower in the given study than in the individuals of comparable age in the epidemiological MERIDIAN-RO study conducted in the Ryazan region. Statistically significant associations were found between the studied polymorphisms and hypercholesterolemia, family history of early cardiovascular diseases and arterial hypertension.
Features of Physical and Motor Development of Children with Congenital Heart Diseases
Authors: Savova Elena M. , Zavarina Anna Yu. , Shvedunova Valentina N. , Ermolenko Marina L.
Published: April 2024

INTRODUCTION: Children with congenital heart diseases (CHD) have certain peculiarities of development determined by the pathology of the cardiovascular system. The type, severity of CHD, the age of correction of the disorder and a number of other factors have a direct impact on the severity of its non-cardiologic complications, such as disorders in physical and motor development attributable to specific conditions of formation of the nervous system in children with CHD.
AIM: To systematize the currently available data on the peculiarities of physical and motor development of children with CHD and their underlying factors, to justify the importance of a more in-depth examination of children at all stages of their development and of the need to correct the identified disorders starting from the moment of their diagnosis.
The review presents the data on the incidence and peculiarities of deviations in motor development of children with CHD at different age periods; describes factors predisposing to their development, as well as the possibilities of diagnosis and correction of such disorders. Besides, information is provided on the development of the balance function that is also impaired in this cohort of patients. Since the physical and motor development of children are closely interrelated and related to the development of the nervous and muscular systems, and the muscle strength and balance are integral components of some motor skills, each of these parameters is considered in a separate section of the article. Acyanotic heart diseases are more commonly associated with disorders in the weight gain, and cyanotic ones — with retardation of children in growth and body mass. Another manifestation of retardation of physical development of children with CHD is deficit of muscle mass development reflected in the research-confirmed reduction of muscle strength in this category of patients. Disorders in fine and/or large motor skills are noted in one to two thirds of children with CHD from an early age to adulthood. Disorders in the motor sphere in childhood entail physical inactivity, psychological and cognitive problems, difficulties in socialization significantly reducing the quality of life.
CONCLUSION: Children with CHD are characterized by peculiarities of the physical and motor development, which have a significant impact on the child’s life. Therefore, currently of paramount importance is not only examination of the cardiovascular system of children with CHD, but also their physical and motor development, as well as timely identification of deviations in the physical and motor development and their targeted rehabilitation.
Opinion of Obstetricians and Gynecologists on Problems of Rehabilitation of Women with Early Reproductive Losses
Authors: Aleshkina Oksana S. , Konovalov Oleg E.
Published: April 2024

INTRODUCTION: One of the most important problems is preserving reproductive potential of the population, which requires development of principally new approaches and organizational solutions.
AIM: To study the opinion of obstetricians and gynecologists on preventability of early reproductive losses and rehabilitation of women after them.
MATERIALS AND METHODS: A sociological survey covered 128 obstetricians and gynecologists working in women’s consultation clinics, specialized gynecological clinics and gynecological departments of multidisciplinary hospitals of Ryazan. Mathematical processing of the results was performed using variation statistics methods.
RESULTS: More than half (60.3%) of the surveyed doctors believe that early pregnancy losses (EPL) in women are conventionally preventable; 28.6% of respondents think they are incompletely preventable and absolutely unpreventable; 11% of respondents found it difficult to answer. A vast majority of respondents (92.1%) were of the opinion that women with EPL need additional health monitoring and rehabilitation. Concerning the opinion of doctors of the awareness of women of necessity for rehabilitation after EPL, 23.6% of surveyed doctors considered them sufficiently informed, 52.7% — insufficiently informed, 12.8%— completely uninformed, and 10.9% found it difficult to answer. The average score on the 5-point scale of the extent of motivation of women for rehabilitation after EPL was 3.72.
CONCLUSION: The results of the study are recommended to be considered when taking organizational and managerial decisions on improving complex medical and socio-psychological rehabilitation of women after EPL.
Objective predictors for delirium tremens based on physiological and metabolic parameters
Authors: Utkin S. I. , Buzik O. Zh. , Burtsev A. A.
Published: April 2024

BACKGROUND: The search for markers and predictors of complicated forms of alcoholism, which include alcoholic delirium and acute psychotic reactions with hallucinatory and delusional phenomena, is one of the actual problems of modern addiction medicine. AIM: Clinical validation of a model for early detection of patients at high risk of developing complicated alcohol withdrawal syndrome (AWS) based on laboratory diagnostics. SUBJECTS AND METHODS: A prospective, cohort, observational study was performed. The study included 200 patients; 9 were excluded. The included patients were distributed as follows: uncomplicated AWS, 98 patients (51.3%); alcohol delirium, 67 patients (35.1%); and alcohol-induced psychotic disorder, 26 patients (13.6%). Potassium, sodium, calcium, and platelet count were compared between the groups, and the relationships between sex, age, and potassium levels in patients with alcohol delirium were studied. RESULTS: Potassium, sodium, and platelet count were significantly different in patients with alcohol delirium and in those with uncomplicated AWS and alcohol-induced psychotic disorder. Blood calcium levels were significantly different between patients with alcohol delirium and uncomplicated AWS. Women were found to be less sensitive to metabolic disorders that developed as a result of alcohol consumption, as evidenced by lower incidence of delirium. The high prevalence of alcohol delirium among older patients is a consequence of decompensation of metabolic regulation mechanisms. CONCLUSIONS: Predictive model of alcohol delirium, based on the results of blood potassium level study, proved effectiveness in clinical application.
Correction of compulsive overeating in rats after maternal deprivation in early age using a new antagonist of OX1 receptors
Authors: Lebedev A. А. , Pyurveev S. S. , Nadbitova N. D. , Lukashkova V. V. , Lebedev V. A. , Bychkov E. R. , Shabanov P. D.
Published: April 2024

BACKGROUND: Compulsive overeating (bulimia nervosa, binge eating disorder) is the basis of eating disorders and is included in ICD-11 and DSM-5 as a manifestation of nonchemicaladdiction and a behavioral disorder of impulsivity and compulsivity. Obesity and eating disorders are characterized by compulsive food consumption, similar to compulsive drug use in substance use disorders. AIM: To evaluate the effect of the OX1 receptor antagonist anthorex on compulsive overeating in animals in a maternal deprivation model. MATERIALS AND METHODS: Sexually mature male rats, which were separated from their mother for 3 h after birth from days 2 to 12, were fed a high-carbohydrate diet every third day for 1 h for 45 days. High-calorie food was placed within 5 cm of reach with visual contact 15 minutes before feeding. Anthorex was administered intranasally for 7 days at a dose of 1 µg/1 µl, 20 µl. RESULTS: Intermittent consumption of high-calorie foods caused compulsive overeating in rats. Sexually mature animals that experienced deprivation from their mother in early ontogenesis showed increased compulsive overeating of high-carbohydrate foods relative to the controls (p 0.001). Moreover, the consumption of standard briquetted feed did not change. Intranasal administration of anthorex reduced the manifestations of compulsive overeating in rats after weaning under conditions of intermittent consumption of high-calorie food compared to the control group (p 0.05). Consumption of standard food did not differ relative to the control group, before and after the administration of the orexin antagonist. CONCLUSIONS: The study reveals new methods of studying and synthesizing peptide drugs based on orexin and its antagonists for the correction of compulsive overeating caused by chronic stress in ontogenesis.
La ayuda humanitaria como remesas políticas en las trayectorias migratorias de empresarios venezolanos radicados en Bogotá
Authors: Medina Marcela Ceballos , Sepúlveda Santiago Castillo
Published: April 2024

El artículo aborda las trayectorias migratorias de sectores empresariales de Venezuela radicados en Bogotá, con el fin de analizar el lugar que ocupa la acción humanitaria en estas trayectorias, y examinando las estrategias de inmigración en el lugar de destino. En particular, evalúa la ayuda humanitaria como estrategia de reproducción social, y su relación con la noción de transnacionalismo político, identificando su papel en una inserción “por arriba” en Colombia. Se plantea que la acción humanitaria adquiere el carácter de “remesas políticas”, en el marco de una estructura de relaciones que involucra el origen y el destino; así como su función en la difusión de mensajes e influenciadas por la posición social de estos sectores y su posición política. La metodología comprende análisis de 18 entrevistas a profundidad con personas pertenecientes a sectores empresariales que emigraron en el periodo 1990-2019, y el uso de las trayectorias migratorias como herramienta de análisis.