bluuebunny/crossref_metadata_2025_split huggingface dataset:
Devising an approach to safety management of vessel control through the identification of navigator’s state
Authors: Nosov Pavlo , Koretsky Oleksiy , Zinchenko Serhii , Prokopchuk Yurii , Gritsuk Igor , Sokol Ihor , Kyrychenko Kostiantyn 
Published: September 2023

The object of this study is the processes of automated management of maritime safety by analyzing the manifestations of the human factor of sea navigators.
The task solved is justified by the need for formal and logical analysis and intelligent identification of mental motivational states (MMS) of marine navigators whose actions can cause dangerous situations during the control of the ship’s movement. High accident rates due to the fault of the navigators, in the absence of automated means of monitoring their condition, cause a contradiction between the existing means of safety control in controlling the movement of the vessel and the modern requirements of navigation, which needs to be resolved.
A safety management approach was devised that takes into account the specificity of navigational tasks and the p-adic classification of dangerous MMS for navigators. This has made it possible to create three security modes that are activated depending on the detected state of the navigator’s MMS.
Features of the results are the combination of analysis by means of p-adic systems and intelligent methods of data processing. As a result, sufficient identification accuracy was obtained for more than 75 % of MMS through neural network training.
Experimental data collected during the navigation watch, as well as on the Navi Trainer 5000 navigation simulator (Wärtsilä Corporation, Finland), became the basis for simulation by means of neural networks. In turn, the training of neural networks made it possible to obtain sufficient identification accuracy by performing up to 3000 iterations. Overall, the learning rate of the neural network was 0.98, which indicates a high level of identification.
From a practical point of view, the results could be used for the automated management of shipping safety, as well as for evaluating the level of adaptation of the navigator to dynamically changing conditions. The proposed approach provides opportunities for the application of modern intelligent technologies in the field of maritime transport safety, namely artificial neural network tools that determine notification modes or activation of automatic ship traffic control modules.
The specified contradiction requires the design of specialized systems for automated safety management of ship traffic control based on the identified states of navigators
Improving the efficiency of symbolic execution by clustering the input data based on the complexity of test generation
Authors: Bazylevych Roman , Franko Andrii 
Published: September 2023

The object of research is means to increase computational effectiveness for automatic unit test generation process. It provides arguments for developing new method to achieve wider use of symbolic execution in commercial software development. The main task of the research is to create adaptive code clustering method that considers test generation complexity for structural source code elements and available computational resources that will increase effectiveness of computations. It is achieved by estimating test generation complexity and balancing the it for produced clusters during clusterization. As a result, proposed clustering method is adaptive to hardware and source code variability. It is shown that developed approach provides up to 30 % increase in computation effectiveness compared to clustering based on code structural properties alone for selected samples and up to 250 % in separate cases. This is caused by balanced estimated test generation complexity within generated clusters. It limits path explosion to expected levels that match computational resources for every cluster. Estimate of test generation complexity makes it possible to stop the computation when the spent time exceeds the corresponding complexity limit. Consequently, it makes it possible to prevent performing unnecessary computations. Proposed method makes it possible to use symbolic execution in commercial software development due to higher adaptability for source code and hardware variations. It will allow to reduce expenses on early-stage software testing and provide means for determining feasibility of symbolic execution for commercial projects
Effect of anodizing on aluminum alloy 2024 with boric sulfate acid in medium 3.5 % NaCl
Authors: Zuchry Muhammad , Renreng Ilyas , Arsyad Hairul , Arma Lukmanul Hakim 
Published: September 2023

The utilization of metal materials finds widespread applications in various industries, including the aircraft industry, where aluminum alloys are commonly employed. However, metal materials are prone to corrosion under specific conditions, necessitating the implementation of corrosion prevention methods to decelerate the material's corrosion rate. Corrosion is a process in which the quality of metal deteriorates due to environmental influences. An effective approach to inhibit corrosion is through anodizing, which involves applying a protective coating to the metal surface, preventing direct contact with the surrounding environment. In this research, the focus was on studying the corrosion rate of aluminum alloy 2024 using Boric Sulfate Acid Anodizing (BSAA) at 10 volts and immersion times of 10, 15, and 20 minutes, followed by sealing with acetic acid in a corrosive environment containing 3.5 % NaCl. The main goals were to evaluate the effectiveness of anodizing with and without sealing in lowering the rate of aluminum corrosion, to compare the effectiveness of anodizing with and without sealing, and to create adsorption models using Langmuir adsorption. Through the examination of the potentiodynamic approach, it was shown that anodizing had an inhibitory impact that was strengthened by sealing. The maximum efficiency of 76 % was attained after 20 minutes of anodizing and sealing at 10 volts. A correlation value of 0.7487 from the Langmuir adsorption modeling was also obtained, pointing to an advantageous adsorption behavior. This research demonstrates how effectively anodizing for aluminum alloy 2024 works with and without sealing, especially in a 3.5 % NaCl-corrosive environment
Using Software-Defined radio receivers for determining the coordinates of low-visible aerial objects
Authors: Khudov Hennadii , Kostianets Oleksandr , Kovalenko Oleksandr , Maslenko Oleh , Solomonenko Yuriy 
Published: September 2023

The object of this study is the process of determining the coordinates of low-visible aerial objects. The main hypothesis of the research assumed that the signals emitted by airborne systems of airborne objects that are not visible to radar stations have a greater power than the signal reflected from the airborne object. This, in turn, could improve the signal/noise ratio and, accordingly, the accuracy of determining the coordinates of low-visible aerial objects. It is suggested to use Software-Defined Radio receivers to receive such signals emitted by on-board systems of low-visible aerial objects.
It was established that the main sources of signals for Software-Defined Radio receivers are signals of command, telemetry, target channels, manual control channels, and satellite navigation. It was established that an additional distinguishing feature when determining the coordinates of low-visible aerial objects is the uniqueness of their spectra and spectrograms.
The method of determining the coordinates of low-visible aerial objects when using Software-Defined Radio receivers has been improved, which, unlike the known ones, involves:
– the use as signals for Software-Defined Radio of signal receivers of on-board equipment of low-visible aerial objects;
– the use of a priori coordinate values of a low-visible aerial object;
– conducting additional spectral analysis of signals of on-board systems of low-visible aerial objects.
The spectra and spectrograms of signals of on-board systems of aerial objects when using non-directional and directional antennas were experimentally determined. The experimental studies confirm the possibility of using the Software-Defined Radio receiver to receive signals from airborne equipment and improve the signal-to-noise ratio.
The accuracy of determining the coordinates of aerial objects when using Software-Defined Radio receivers was evaluated. A decrease in the error of determining plane coordinates by the Software-Defined Radio system of receivers compared to the accuracy of determining coordinates by the P-19 MA radar station was established by an average of 1.88–2.47 times, depending on the distance to the aerial object
Devising technological solutions for gas sensors based on zinc oxide for use at critical infrastructure facilities
Authors: Minska Natalia , Hvozd Viktor , Shevchenko Olga , Slepuzhnikov Yevhen , Murasov Rustam , Khrystych Valerii , Strelets Valery , Kryvonis Svitlana , Rotar Vasyl , Lypovyi Volodymyr 
Published: September 2023

This paper reports a study of a gas sensor based on nanostructured zinc oxide in order to establish the conditions for its production and operating characteristics under the influence of the target gas ethanol. The studied samples were produced by magnetron sputtering on direct current. The method of forming the device structure was chosen among others due to the fact that it has a high rate of deposition at low values of the working gas pressure, there is no overheating of the substrate, a low degree of contamination of the obtained films, the possibility of obtaining samples of uniform thickness on a large area of the substrate. A VUP-5M vacuum unit with an original material-saving magnetron was used to obtain the films. Studies of the effect of temperature on the resistance of a gas sensor based on ZnO have been carried out. It was established that the change in the resistance of the tested sample depends on the temperature of the substrate. The resistance of the gas sensor in atmospheric air decreases with increasing substrate temperature from room temperature (25 °C) to 200 °C. A further increase in temperature from 200 °C leads to an increase in the resistance of the structure until it stabilizes in the temperature range of 300–400 °C. It was established that the operating temperature range of the gas sensor based on ZnO is within 300–400 °C. The characteristics of the gas sensor based on ZnO were studied and the working temperature of the sensor was determined for the rapid identification of ethanol in atmospheric air at a target gas concentration of 500 ppm. It was established that for rapid operation of the instrument structure, the temperature of the substrate should be 400 °C, a decrease or increase in temperature leads to a decrease in the sensitivity of the sensor to the target gas. It was established that the gas sensor demonstrates stability and a consistent sensitivity response upon repeated exposure to the target gas
Study of aqueous solutions of poloxamers by rotational viscometry and spin probe method
Authors: Lyapunov Nikolay , Bezuglaya Elena , Liapunov Oleksii , Lysokobylka Oleksii 
Published: September 2023

The aim. To study aqueous solutions of different poloxamers by spin probe method and rotational viscometry depending on the temperature and poloxamer content.
Materials and methods. The aqueous solutions of poloxamers 188, 237, 338 and 407 were studied. The solutions were studied by rotational viscometry at different temperatures; the flow behaviour, yield stress (t0), and dynamic or apparent viscosity (η) were determined. Five spin probes differing in molecular structure, solubility, and radical localisation were introduced into the solutions. Electron paramagnetic resonance (EPR) spectra were obtained. The EPR spectra were used to determine their type and to calculate parameters.
Results. Three factors are important for gel formation: the poloxamer type, its concentration in aqueous solution, and temperature. As the temperature of aqueous solutions of poloxamers 237, 338, and 407 increases, the rotational correlation times of fatty acid-based spin probes and the order parameters of their EPR spectra decrease. This indicates a decrease in the packing density and orderliness of the polypropylene oxide (PPO) chains in the non-polar part of the poloxamer associates, leading to an increase in the volume fraction of micelles/mesophases and promoting the formation of gels. As the temperature decreases, the opposite processes occur, leading to a gel → sol transition. At 37 °C, non-polar micelle cores could be characterised as two-dimensionally liquid and one-dimensionally solid. The rotational correlation times of the hydrophilic spin probe 4-OXO-TEMPO in 25 % aqueous solutions of poloxamers 338 and 407 are approximately constant or increasing despite an increase in the temperature. This indicates that in the polar part of the poloxamer associates, where this probe is partially localised, structural rearrangements occur with increasing temperature, which probably prevents hydrophobic hydration of the PPO chains.
Conclusions. The rheological properties of aqueous solutions of poloxamers depend on their type, concentration, and temperature. According to the parameters of the EPR spectra of fatty acid-based spin probes, it was found that with increasing temperature, the packing density and the orderliness of the PPO chains in the non-polar part of the poloxamer associates decrease, probably leading to an increase in the volume of the micelles and causing a sol → gel transition
Neutrophil extracellular traps-associated markers in malignant neoplasms of the female reproductive system after surgical treatment and adjuvant chemotherapy
Authors: Slukhanchuk E. V. , Bitsadze V. O. , Solopova A. G. , Khizroeva J. Kh. , Gris J.-K. , Elalamy I. , Degtyareva N. D. , Gileva M. A. , Samburova N. V. , Shcherbakov D. V. , Yakubova F. E. , Zelepukhina M. E. , Blinov D. V. , Makatsariya A. D. 
Published: September 2023

Introduction. Studies evidence about a relation between increased circulating free DNA (cfDNA) concentrations and chemotherapy, the majority of which have been focused on considering a tumor as a source of cfDNA. It has been suggested that neutrophils also contribute to this process, as cancer-related cfDNA characteristics resemble those of neutrophil extracellular traps (NETs). Therefore, the elevated concentration of cfDNA observed in chemotherapy patients may be associated with NETosis.Aim: assessment of NETosis markers in surgical treatment and adjuvant chemotherapy of patients with malignant neoplasms of the female reproductive system.Materials and Methods. A prospective non-randomized interventional controlled study was carried out by enrolling 111 patients with malignant breast diseases and female genital organs of various localizations and stages hospitalized for elective surgical treatment or chemotherapy course. The control group included 33 healthy women. 69 patients underwent surgical treatment. Adjuvant chemotherapy with paclitaxel and carboplatin was performed in 25 patients with ovarian cancer and 17 patients with breast cancer. In cancer patients, citrullinated histone H3 (citH3) and myeloperoxidase (MPO) were chosen as NETosis biomarkers allowing to distinguish NETs from other tumor-derived cfDNA thereby improving quality of research study. The concentration of NETosis markers was assessed before surgery or onset of chemotherapy upon admission to hospital and 14 days after surgery or 14 days after the second course of chemotherapy.Results. In all patients, the concentrations of NETosis markers before the start of therapy were significantly increased compared to the control group as well as 14 days after surgical treatment and 14 days after the second course of chemotherapy. However, in surgical patients, no significantly increased concentration of NETosis markers postvs. pre-surgery magnitude was observed. Upon that, patients underwent 2 courses of chemotherapy vs. baseline level were found to have significantly elevated magnitude of NETosis markers.Conclusion. The study revealed the relationship between administration of paclitaxel-containing chemotherapy in patients with ovarian cancer and breast cancer and a rise in NETs level. Chemotherapy is an essential component for management of patients with malignant neoplasms of the female reproductive system, therefore, development of new strategies to lower a risk of thrombosis and resistance to it is of crucial importance.
Establishment of a lower cut off to diagnose hypothyroidism in Indian pregnant women
Authors: Waskle Priyanka , Khare Atul Kumar , Singh Kirti 
Published: September 2023

Thyroid dysfunction is a common disorder in pregnancy which affects both maternal and fetal outcomes. There are very less and limited data on prevalence of hypothyroidism during pregnancy from India because no such big study done till now. This study done to define cut off value of serum TSH level in Indian pregnant women as hypothyroid and maternal and fetal outcomes. This study was planned to establish a lower cut off value for serum TSH to diagnose hypothyroidism in Indian pregnant women. This is a prospective and retrospective cohort study conducted in a period of 1.5 years between September 2021 to April 2023, in the department of Obstetrics & Gynecology GMC Shahdol in 1000 pregnant women’s who comes in antenatal checkup in OPD.All healthy pregnant women with singleton pregnancy willing to participate in the study were enrolled. Women which have multiple pregnancy, known chronic medical disorder like diabetes, hypertension, any autoimmune disorder with hyperthyroidism or known hypothyroidism, bad obstetric history with a known cause are excluded from study.However, there are few limitations of this study. We have not assessed trimester specific ranges. Follow up beyond newborn period was not possible because after discharge most infants either did not come for follow up or they were seen in pediatric clinic. We did not carry out thyroid examination using ultrasound, and we have not evaluated other causes of hypothyroidism in these women.All pregnant women underwent ELISA TSH assay. Women with serum TSH &#62;6.2mIU/L underwent Free Thyroxin (FT4) estimation and labelled as overt hypothyroid (OH) (group I) or subclinical hypothyroid (SCH) (group II). Women with serum TSH between 3-6.2mIU/L & 0.4-3mIU/L were labelled as group III & control. Foeto-maternal outcomes were compared between group I, II,III & controls. The prevalence of SCH & OH was 6.4% and 3.8%. Pre-eclampsia, gestational DM & IUFD in group I and foetal distress in group II developed in significantly higher number of women (p=0.009, p=0.002, p=0.002 & p=0.004 respectively) Foeto-maternal variables assessed in group III none was significantly different from control group. There is a high prevalence of hypothyroidism and adverse foeto-maternal outcome is more commonly associated with OH as compared to SCH. TSH 3-6.2mIU/L may be taken as normal during pregnancy in the Indian population. We recommend a higher cut off for serum TSH to diagnose hypothyroidism ie &#62;6.2mIU/L in Indian pregnant women. The strong point of this study is that we have included large number of subjects from India. From this study we know the level of thyroid cut off level in Indian pregnant women’s which can be used for diagnosis and treatment of this disorder.
Food anthropology of Alavi Bohra muslims during Muharram
Authors: Ansari Sabat Imran , Nambiar Vanisha 
Published: September 2023

The Alavi Bohras, besides their long and distinguished history, have a distinct culture around food and identity, elements of which are still preserved and active by the Alavi Bohras decades after their settlement in Vadodara. They have a typical food pattern in the mourning month of Muharram, which is the first month of the Islamic calendar. To document the food anthropology and ethnography of foods, ingredients, and dishes of Alavi Bohra Muslims during Muharram using qualitative methods. In this cross-sectional study, mixed qualitative methods of ethnographic research were used to understand the diet culture of Alavi Bohras during Muharram – the historic significance of Muharram, assessing the diet quality, type of foods and key ingredients used in cuisines as served in community thaals. Methods like direct observations (n=10 days) of the community kitchen, key informant interviews (n=5) with clerics and cooks, and focus group discussion (n=1) with prominent and learned people of the community. Based on the observations, interviews, and focus group discussion it was found that Alavi Bohras eat food served through the community kitchen on all nine days including Ashura, during Muharram, Food is consumed from thaal, which essentially has two items each day, a sweet and a savory dish served with a milk-based beverage daily and served ad libitum. The thaal comprises all four food groups - namely cereals, millets; pulses; vegetables, and fruits; and Milk and Milk products, egg, meat and fish, oils and fats (ICMR -NIN, 2011). This study showcases the culture of Alavi Bohra Muslims during Muharram, the diet quality of Muharram, and Ashura thaal, which is a completely balanced meal, such thaal can be promoted at large and a comparative account of Muharram by Shia and Sunni Muslims. Rich diversity is observed in the thaal wherein all foods from all 4 groups are incorporated, which is considered healthy and nutritious.
РОЗРОБЛЕННЯ ІНСТРУМЕНТАРІЮ ПРОАКТИВНО-ІННОВАЦІЙНОГО УПРАВЛІННЯ ПРОМИСЛОВИМИ ПІДПРИЄМСТВАМИ В УМОВАХ ЦИФРОВІЗАЦІЇ
Authors: Дикань В. Л. , Обруч Г. В. , Кузнецов В. Є. 
Published: September 2023

На основі дослідження сучасного стану вітчизняних промислових підприємств встановлено, що незважаючи на потужний промисловий потенціал України відсутність стратегічного бачення розвитку промисловості та реалізації стратегічно значущих для даного сектору реформ призвело до поступової деградації промисловості і втрати потужного сектору економіки. З’ясовано, що різке скорочення обсягів виробництва та експорту продукції промисловості, зокрема машинобудівного сектору, є результатом реалізації протягом багатьох років політики деіндустріалізації економіки, декларативного характеру реалізації стратегічних та програмних ініціатив розвитку даного сектору, високу фізичну та моральну зношеність інфраструктури і обладнання, використання застарілих технологій, низького рівня накопичення основного капіталу, відтоку інтелектуальних ресурсів і низької конкурентоспроможності вітчизняної промислової продукції на світовому ринку. Доведено, що зважаючи на експоненціальний характер зміни інноваційних трендів розвитку промисловості, прискорення роботизації та цифровізації діяльності промислових підприємств виникає потреба в перегляді дієвих інструментів управління їх діяльністю і забезпечення сталого зростання з акцентом не лише на своєчасній адаптації до внутрішніх та зовнішніх змін, але й на прогнозуванні такого роду трансформацій і передбаченні можливих викликів та загроз. Розкрито особливості проактивно-інноваційного управління промисловими підприємствами, впровадження інструментів якого сприятиме стабілізації їх діяльності та забезпеченню інноваційної модернізації підприємств вітчизняного промислового сектору.
РОЛЬ КЛІЄНТООРІЄНТОВАНОСТІ У ЗАБЕЗПЕЧЕННІ КОНКУРЕНТОСПРОМОЖНОСТІ ПІДПРИЄМСТВА
Authors: Каличева Н. Є. , Кондратюк М. В. , Григоров А. В. 
Published: September 2023

Стаття присвячена питанням забезпечення конкурентоспроможності підприємства за рахунок орієнтації діяльності підприємства на задоволення запитів клієнтів. Зазначено, що клієнтоорієнтованість виступає ключовою компетенцією при взаємовідносинах з цільовими клієнтами та при завоюванні нових. Відмічено, з метою досягнення сталого розвитку підприємства в довгостроковій перспективі необхідним є розроблення та запровадження клієнтоорієнтованої стратегії розвитку. Реалізація такої стратегії спроможна забезпечити постійне посилення економічної потужності фірми, покращення іміджу та репутації, розширення клієнтської бази та підвищення рівня конкурентоспроможності. Зазначено, що в сучасних умовах найбільш дієвими інструментами забезпечення клієнтоорієнтованого розвитку підприємства є цифрові.