bluuebunny/crossref_metadata_2025 huggingface dataset:
Recruitment discrimination of lifetime classic psychedelic users is unjustified: Evidence from employees' motivation-based workplace absenteeism
Authors: Korman Benjamin A.
Published: January 2023

Background and aims

Although large-scale population studies have linked the use of classic psychedelics (lysergic acid diethylamide, psilocybin, or mescaline) to reduced odds of physical health problems, mental health problems, and criminal behavior, the roughly 35 million adults in the United States who have used classic psychedelics are nonetheless stigmatized in the American job market. Various federal organizations in the United States automatically reject applicants on the sole basis of prior psychedelic use, thereby practicing an open form of legal discrimination against these applicants. The present study investigates whether this discrimination can be justified based on associations between lifetime classic psychedelic use and motivationally-based workplace absenteeism.

Methods

Using pooled cross-sectional data from the National Survey on Drug Use and Health (2013–2019) on 193,320 employed adults in the United States, this study tests whether lifetime classic psychedelic use predicts the number of workdays employees skipped in the last month (i.e., motivationally-based workplace absenteeism).

Results

After adjusting for sociodemographics, physical health indicators, and other substance use, no significant association between lifetime classic psychedelic use and motivationally-based workplace absenteeism is found.

Conclusion

This study builds on classic psychedelic research that is just beginning to take work-specific outcomes into account and offers empirical justification for the elimination of arbitrary drug-based recruitment policies in the workplace.
A mini review on the role of phosphatidylcholine metabolism in obesity
Authors: Yu Jiujiu
Published: January 2023

Phosphatidylcholine (PC) is one of the major building blocks of biological membranes in mammalian cells. In PC, two fatty acyl chains are linked to the sn-1 and sn-2 positions of the glycerol backbone, and a head group containing a phosphate and choline is linked to the sn-3 position. The length and saturation of the fatty acyl chains of PC vary significantly and determine the biophysical and chemical properties of PC. In mammalian cells, active metabolism of PC takes place primarily through de novo synthesis, the remodelling cycle of deacylation and reacylation, and further modification of lysophosphatidylcholine. PC metabolism undergoes remarkable changes in obesity. In this mini review, we discuss PC metabolism and summarize recent advances about the important involvement of PC metabolism in obesity and obesity-related diseases.
Development of a method to harvest mechanical energy to use as an alternative to electrical energy in electric powered rides
Authors: Megalingam Rajesh Kannan , Sasikumar Bharath , Raghavan Dhananjay , Raagul Vadivel Shree Rajesh , Makkal Mohandas Sreekanth , Kuttankulangara Manoharan Sakthiprasad
Published: January 2023

Mechanical energy harvesting, storage and utilization methods and devices are a little explored area with a potential to replace electrical energy in machines operated with electricity and which is environmentally friendly. Energy harvesting from human actions is an optimistic solution to provide energy supply. There are various methods and techniques that discuss energy harvesting from human actions. The problem is that most of these methods deal with tiny energy output. The object of this study is to design and characterize a flat spiral spring based method to harvest enough mechanical energy, to store and to drive a ride as in an amusement park instead of electricity. A flat spiral spring is specifically designed and fabricated for this purpose. To begin with, a life-size prototype of the kids' ride using the flat spiral spring is modeled, analyzed, fabricated and implemented on the kids' ride prototype. The stability of the ride is analyzed by modeling the impact of the collision between two kids' rides. Energy is harvested by winding the spring by hands using a handle or by pulling back the kids’ ride and is stored in the spring. Experimental results show that the proposed method of harvesting, storing and utilization of mechanical energy can be an alternative to electrical energy in operating high-power machines like kids' rides. An optimum width of 30 mm and a thickness of 1.4 mm for the flat spiral spring are found to help in ease of manufacturability, ease of rotation by human and compactness. The average force required to wind the spring is calculated to be 16.06 N, which is approximately 33 % of the force that can be exerted by a human hand. The stability of the proposed system in case of collision is verified by calculating the roll angle, which is less than 3.83 degrees, which is well below the recommended roll angle limit in case of collision.
Importance of the integrated manufacturing execution system for a metallurgical enterprise
Authors: Kurmanov Serik
Published: January 2023

The object of the study is Manufacturing Execution System. The relevance of the study is conditioned by the fact that the metallurgical industry has been demonstrating a high level of volatility in the global market over the past few years. The issue of the effectiveness of the metallurgical enterprise is directly related to ensuring environmental safety. The purpose of the study is to consider how the Manufacturing Execution System (MES) operates in the metallurgical industry and highlight its features, offering recommendations aimed at improving operational efficiency with the introduction of MES systems at enterprises of the metallurgical industry of the Republic of Kazakhstan. The following methods were used in the study: analysis, synthesis, comparison, graphical representation of data. Using the example of the Magnitogorsk Iron and Steel Works, the study examined the relationship between MES and APCS (Automated Process Control System), highlighted the requirements for the transition from individual management of particular cases of technological rules and restrictions to the digitization of general algorithms. It was defined that the advantages of a production system include its fast payback. Also, it was determined that the MES system allows automating production operations and information support, carrying out operational planning, accounting for production and quality of metal products, tracking the history of each product, managing equipment, and analyzing performance. In addition, the recommendations that can be used as a basis for creating an enterprise development program, increasing the level of productivity, therefore, reducing the cost of the enterprise's products, were developed
Determining optimal rated power of a photovoltaic station for mine dewatering
Authors: Vasylets Sviatoslav , Vasylets Kateryna
Published: January 2023

The object of the study is the main dewatering system of the mine. Climate change has stimulated the refusal to use coal in many countries. In conditions of massive closure of mines, there is a need to pump out mine waters to avoid flooding. A significant water influx determines the high cost of electricity consumed by pumps. It is proposed to increase the efficiency of the mine dewatering system due to the introduction of a smart power supply grid with photovoltaic generation. The relative value of the annual balance of payment for energy consumption is chosen as an optimization parameter. The rated capacity of the photovoltaic station is optimized according to the criterion of approaching, with accuracy up to the permissible mismatch, the absolute value of the optimization parameter to zero. The relationship between the optimization parameter and the rated capacity of the photovoltaic station is represented by a parabolic regression. Regression parameters are estimated in the case study for a specific mine based on the results of a single-factor simulation experiment conducted using a computer model of a smart power grid. The randomness of natural, technical and economic factors is taken into account. Based on the prediction intervals for the regression, the optimal rated capacity of the photovoltaic station for the selected mine is estimated at 3.164 MW with a pump capacity of 1.732 MW. It was found that the annual energy savings for the case study conditions reach 3,745 MWh. Equipping the power supply grid of the main dewatering system with a photoelectric station of optimal configuration will reduce the cost of consumed electricity to several percent. This will make it possible to avoid financial costs for maintaining the balance of underground water and reduce the flooding probability of coal regions being transformed
Increasing energy efficiency and enabling the process of vacuum mode stabilization during the operation of milking equipment
Authors: Aliiev Elchyn , Paliy Andriy , Paliy Anatoliy , Kis Viktor , Levkin Artur , Kotko Yana , Levchenko Iruna , Shkurko Maryna , Svysenko Sofiia , Sevastianov Vitalii
Published: January 2023

A scientific hypothesis has been put forward, according to which an increase in the efficiency of using a vacuum system of milking equipment with an upper milk line with mechanical pulsators can be achieved by predicting its residual resource. As well as with the subsequent planning of maintenance and the identification of patterns and dependences characterizing these processes.
As a result of experimental studies of changes in the technical and technological parameters of the vacuum system of milking equipment with an upper milk line with mechanical pulsators, the theoretical dependences obtained with their correlation coefficient r=0.971–0.972 were empirically confirmed. Namely, the magnitude of the working vacuum, the pulsation rate, the ratio of pulsations, and the tension force of the nipple rubber, depending on the time of operation. It was established that after 175 hours of operation of the milking stationary installation, the value of the working vacuum decreased by 4 %, the pulsation frequency – 14 %, the ratio of pulsations – 16 %, and the tension force of nipple rubber – 21 %.
On the basis of the obtained dependences included in the procedure for forecasting the resource of the vacuum system of milk-milking equipment with an upper milk line with mechanical pulsators, the software package «Alt viewer 1.0» was developed. It is designed to display and automatically process the measurement results of the technical and technological parameters of milking equipment using the designed Tester of milking machines, v.2.0. The software performs the following main functions: reading the measurement results from the memory card, decoding them, displaying them in tabular and graphical forms. As well as the calculation of the parameters of pulsations and the formation of a report, forecasting the resource of the nodes of the vacuum system. The program also provides for the storage of information on the calibration coefficients of pressure sensors, air flow meter, as well as the frequency of polling sensors when measuring pulsations and fluctuations of the working vacuum
Assessment of the impact of digitalized management on the financial risks of industrial enterprises
Authors: Vasylyshyna Liubov , Popova Olga , Hoholieva Nataliia , Lyzunova Olena , Medvedieva Maryna , Laskavets Kateryna , Mykytenko Tatyana , Diachenko Valentyn , Yemets Andrii , Shevchenko Serhii
Published: January 2023

This paper considers the process of influence of digitalized management on the financial risks of industrial enterprises. An algorithm for determining the category of financial risks of industrial enterprises has been developed. Depending on the values of the coefficient of variation of deviations of financial ratios from the standards, five categories of financial risks have been distinguished – minimum, low permissible, critical, catastrophic. The categories of financial risks of industrial enterprises of the energy sector on the basis of liquidity indicators were determined. The indicators with the help of which it is possible to determine the level of digitalized management have been systematized. The parameters of low, medium, and high levels of digitalized management of industrial enterprises were substantiated. The relationship between the level of digitalized management of industrial enterprises and the categories of financial risks has been established. To assess the impact of digitalized management on the financial risks of industrial enterprises, a cross matrix "level of digitalized management – category of financial risk" is proposed. This has made it possible to justify the expediency of using three strategic directions of influence of digitalized management on the financial risks of industrial enterprises – the strategy of an innovator, follower, and observer. It has been established that while the innovator's strategy assumes the maximum, the observer's strategy is a minimum of effort and aims to actively use digital tools to manage this process. The practical use of the proposed directions of influence of digitalized management on the financial risks of industrial enterprises will provide an integrative combination of quantitative and qualitative results. In particular, achieving a stable financial condition of industrial enterprises in the context of digital transformation of the economy
Development of the concept of building project management systems in the context of digital transformation of project-oriented companies
Authors: Teslia Iurii , Khlevna Iulia , Yehorchenkov Oleksii , Yehorchenkova Nataliia , Grigor Oleg , Kataieva Yevheniia , Latysheva Tatiana , Prokopenko Tеtiana , Tryus Yuriy , Khlevnyi Andrii
Published: January 2023

An analysis of the impact of new global trends, such as Industry 4.0, on project-oriented companies was performed. Based on the analysis, the research problem is formulated, which consists in the need to create project management systems in accordance with the concepts, ideas, principles and methods of digital transformation of project-oriented companies. Project management processes in the conditions of digital transformation of project-oriented companies are defined as the object of research.
An approach to the creation of project management systems is proposed, which is based on the need to adapt the organizational, methodological and technological components of these systems to the specifics of a project-oriented company and the conditions of digital transformation. Based on this approach, the methodological, organizational and technological components of project management systems were improved. As part of the organizational component, a structural and functional model of project management is proposed, which takes into account the conditions of digital transformation of a project-oriented company. Within the framework of the methodological component, it is proposed to use management meta-methodology to create a project management methodology specific to the company's conditions and digital transformation processes. A digital interpretation of matrix information technologies for the technological component is proposed.
An organizational and technological model of implementation of project management systems in the conditions of digital transformation of companies was developed.
The conditions for the practical use of the concept are given: the systematic organization of the digital space and the availability of qualified specialists in the creation of project management systems. The implementation of the concept made it possible to reduce the project execution time by 5–20 %, as well as project cost due to more rhythmic work performance
Development of models of the electromagnetic environment in buildings and urbanized areas
Authors: Levchenko Larysa , Ausheva Nataliia , Burdeina Nataliia , Aznaurian Iryna , Biruk Yana , Kasatkina Natalia , Matvieieva Iryna , Nazarenko Vasyl , Nikolaiev Kyrylo , Tykhenko Oksana
Published: January 2023

A set of measures and means to control the electromagnetic situation of the environment in the territories of urban development, in buildings and individual premises has been substantiated and developed. The simulation tools show the ability to rationalize the parameters of overhead lines with voltages of 220 kV and below, which will reduce the electromagnetic load in the territories. Modeling the propagation of fields from underground high-voltage lines has established that the values of magnetic fields compared to overhead lines are lower up to 30 times. Models of propagation of electromagnetic fields of very high and ultrahigh frequency were built. Sources of electromagnetic fields of non-production origin in industrial buildings have been investigated. Uncompensated currents in power networks with nonlinear electric consumers generate magnetic fields by induction of 0.35−1.20 μT, which exceeds the maximum permissible levels of operation of computer equipment. Leakage currents on grounded metal structures generate magnetic fields with 1.52−6.75 μT.
Simulation of the propagation of electric and magnetic fields of components of personal computers of controlled ranges according to the MPRII standard was carried out. Models of propagation of the magnetic field of industrial frequency around electric motors and generators with their cross sections were built. On the basis of such models, design schemes for placing equipment in production areas are selected or places of safe stay and movement of personnel are selected. The expediency of using shielding to reduce field levels to safe values due to coating surfaces with liquid protective mixtures was shown. Metal-containing composition based on water-dispersion paint makes it possible to reduce the level of magnetic field of industrial frequency by 2.5−2.6 times, electric field by 1.6−1.7 times, electromagnetic field of industrial frequency – by 1.2−1.3 times.
Estimating the stability of steady motion of vibration machines operating on the somerfeld effect using an empirical method
Authors: Filimonikhin Gennadiy , Amosov Volodymyr , Haleeva Antonina , Ienina Iryna , Mezitis Mareks , Nevdakha Yuriy , Strautmanis Guntis , Vasylkovskyi Oleksii
Published: January 2023

One-, two-, and three-mass vibration machines with translational motion of platforms and a vibration exciter of a ball, roller, or pendulum type with several loads were studied. The empirical criterion for the onset of auto-balancing was applied in the extended formulation.
It has been established that a single-mass vibration machine has one resonant speed, and:
– at the after-resonance speeds of rotation of loads synchronously with the rotor, the auto-balancing mode becomes stable;
– at the pre-resonance speeds of rotation of loads, loads tend to gather together.
In a dual-mass vibration machine, there are two resonant speeds and one additional speed located between two resonant ones. The auto-balancing mode is stable when the loads rotate synchronously with the rotor at the following speeds:
– between the first resonant speed and the additional speed;
– greater than the second resonant speed.
At other speeds of rotation of loads, loads tend to gather together.
The three-mass vibration machine has three resonant speeds and two additional speeds, located one by one between adjacent resonant speeds. The auto-balancing mode is stable when the loads rotate synchronously with the rotor at the following speeds:
– between the first resonant speed and the first additional speed;
– between the second resonant speed and the second additional speed;
– greater than the third resonant speed.
At other speeds of rotation of loads, loads tend to gather together.
In a single-mass vibration machine, the value of the resonant speed does not depend on the viscosity of supports. In dual-mass and three-mass vibration machines, all characteristic speeds depend on the viscosity of supports. With small forces of viscous resistance, the values of these speeds are close to the characteristic speeds found in the absence of resistance forces.
Assessment of economic efficiency indicators of environmental protection measures during the construction of hydraulic engineering structures
Authors: Gurgenidze David
Published: January 2023

In order to ensure the integral management of water and land resources during the implementation of environmental protection engineering measures, as well as to solve ecological problems, a macroeconomic approach directed at the final results is necessary. The traditional "narrow" economics of nature use is viewed as a single cycle of water and land resources and production waste and pollution, with insufficient attention paid to the economy itself ("black box"). For purposeful use of macroeconomics, it is necessary to build a vertical of natural productivity of each natural resource (chain), which will connect the primary natural factors with the production of final products. An effective concept of the rationalization of nature use and environmental protection against debris-flow phenomena and the matching economic mechanism of nature use in sectors and complexes can be developed and realized only after the development of the concept of development of the sector complexes and the whole economy. Regional features of the formation of the economic mechanism of nature use are important.
The assessment of economic efficiency indicators of environmental protection measures during the construction of hydraulic engineering structures is discussed. The value of efficiency obtained by environmental activities is considered by the criteria for evaluating the efficiency of the investment project, where this criterion is called net discounted income, net discounted value, or modern net income. Functional-value analysis of environmental impact during the construction of hydraulic engineering structures, including the construction of high dams, for the realization of the analytical stage, a functional model is built based on the orography of the social-ecological-economic system.
Based on theoretical and field scientific studies, the economic efficiency of the innovative debris-flow control structure has been established, the numerical value of which is equal to 16.15 USD per 1 longitudinal meter of the structure.
Design of the inverter in high accuracy and development of work therein by using compound ligation
Authors: Baqir Muhammed Hussein , Haziq Nor Mohd , Wahab Noor Izzri Abdul
Published: January 2023

A ligation (CL) system with a very high frequency in an inverter was used, it is a novelty in this study. We also employed a three-phase dynamic load (positive sequence voltage) to correct the power factor and account for active and reactive power in the output system this work is a novelty. The technique through compound ligation (CL) can improve inverter output waveform by reducing losses caused by ingrained agents in voltage source inverters (VSI), such as dead time caused by overload or voltage drop in an inverter's output, or abnormal load current conditions such as a short circuit current occur in the output stage of the inverter, and so on. The invention relates to the conversion of D.C. to A.C. power inverters, it is preferable to use compound ligation to achieve high efficiency, the device is lightweight, and has low losses and good precision. In addition, the present invention relates to improving an inverter load request sensation circuit, smoothing operational current, inverter response, and inverter spontaneous power factor improvement, as well as correction of the reactive power of passive components. In addition, an inverter with high active power (P) equal to (2.6×106 Watt), reactive power (Q) (5.4×107 VAR), was designed, and used positive sequence voltage (1.6×108 Watt ), as well as the switching period (10µs), The system's total harmonic distortion (THD) in voltage and current was 0.11 percent, while the system's accuracy was 99 percent. This is developed by using FPGA and oscillator circuit and programmable peripheral interface 8255 A as well as, ultrasonic PWM with a high-frequency range of (20–500 kHz) as demonstrated evidenced by the results obtained
Principles and stages of creation of automatic control systems with a model of complex technological processes
Authors: Loriia Maryna , Tselishchev Oleksii , Eliseyev Peter , Porkuian Olga , Hurin Oleksandr , Abramova Alla , Boichenko Sergii
Published: January 2023

The object of this study is an effective approach to designing automatic control systems with a model of complex technological processes, which include interrelated and complementary stages from the formulation of the task to the implementation of the control system at the facility. It includes a set of measures, starting with the analysis of the process in its hardware design with the construction of an information and logical scheme to the development of all types of security and commissioning.
The main problem in the implementation of a control system with a technological process model is the limited ranges of adequacy of mathematical models. Therefore, when changing the load on the unit, changing external and internal perturbations, it is necessary to constantly ensure the necessary level of adequacy of the models. It is proposed to use a combined model as a mathematical model of the control object, combining the advantages of analytical and experimental-statistical models. This makes it possible to significantly expand the information base of the resulting model. A simple and effective iterative algorithm for calculating this model is also proposed. It includes sequential steps to determine the parameters of the model by basic dependences (the deterministic part of the model), followed by clarifying them according to the current data from the object (experimental statistical part of the model). The effectiveness of the approach is confirmed by the example of ASC TP of the ammonia synthesis column. By improving the accuracy of determining the control parameters and narrowing the range of their change around the optimal value, the volume of ammonia release increases by 5–8 %.
The application of the described approach on the example of the development of an automatic control system for the technological process of ammonia synthesis confirmed the economic feasibility of implementing the proposed solutions
Comparison of anterior segment parameters in normal and keratoconus eyes using combined placido-disk schiempflug imaging-based topography
Authors: Kurakula Madhuri , Yelamanchili Pasumarthi Pavani , Gitanjali Mannam , Srawanthy Kotagiri
Published: January 2023

The aims: The purpose of this study was to evaluate and compare the anterior and posterior corneal surface parameters, keratoconus indices, thickness profile data, and data from enhanced elevation maps of keratoconus and normal corneas using Combined Placido-Schiempflug imaging-based topography, and to determine the sensitivity and specificity of these parameters in discriminating keratoconus from normal eyes.

Materials and methods: A retrospective comparative observational study of 100 normal eyes and 100 keratoconus eyes was done from April 2014 to May 2015 at MM Joshi Eye Institute, Hubli, Karnataka. We evaluated and compared the anterior and posterior corneal surface parameters, keratoconus indices, thickness profile data, and data from enhanced elevation maps of keratoconus and normal corneas using Combined Placido-Scheimpflug Imaging based Topography to determine the sensitivity and specificity of these parameters in discriminating keratoconus from normal eyes.

Results: Keratoconus indices (Sif, Sib, BCV-f, BCV-b, KVf, KVb, CCT, MinCT) showed Excellent AUROC values followed by K- steep in posterior curvature at 3 mm, 5 mm followed by K- steep in anterior curvature and other parameters in discriminating Normal from Keratoconus-Suspect eyes. Elevation indices- BCV-f, BCV-b, CCT, Min-CT, K-steep & K-flat in anterior and posterior curvature in 3 mm, 5 mm, 7 mm, and CV were significant in discriminating normal from mild keratoconus. All parameters except ACV and ICA were significant in discriminating normal from moderate keratoconus. All parameters were significant in discriminating normal from severe keratoconus eyes. Morphological indices were significant in differentiating mild, moderate and severe keratoconus.

Conclusion: Many parameters were statistically significant between keratoconus and normal eyes compared with early keratoconus eyes.

The topography and corneal aberration results in this study are promising for detecting ectatic corneas. In our study, thickness indices-CCT, MinCT, Abberometry indices- BCVf, BCVb and keratometry in steep meridian at posterior curvature had the highest AUC scores in differentiating normal from sub-clinical keratoconus.

Elevation indices- Rbf-f, Rbf-b, thickness indices- CCT, MinCT, aberrometry indices, and keratometry-steep in anterior & posterior curvature had the highest AUC scores in differentiating moderate and severe keratoconus
Study of hypoglycemic properties of «Glyphasonorm» tablets and «Glyphasolin» capsules on the streptozotocin-induced diabetic rat model
Authors: Rybak Viktoria , Honcharov Alexander , Korol Viktoriia
Published: January 2023

The risk of developing any complications of diabetes is significantly reduced by monitoring and correcting blood glucose levels and blood pressure, as well as by observing healthy lifestyle rules. Early detection and treatment of type 2 diabetes contribute to the prevention of disease progression and the development of complications.

The aim is to study the hypoglycemic effect of «Glyphasonorm» tablets and «Glyphasolin» capsules in a rat model of streptozotocin-induced diabetes.

Materials and methods. The studies were carried out on Wistar rats injected intraperitoneally with nicotinamide at a dose of 230 mg/kg 15 minutes before intravenous injection of streptozotocin at a dose of 65 mg/kg. The dynamics of body weight of rats, glucose and glycosylated haemoglobin levels under the impact of long-term administration of metformin, «Glyphasonorm» tablets and «Glyphasolin» capsules were investigated.

Results and discussion. The studies on a streptozotocin-induced diabetic model have established that under the action of «Glyphasonorm» tablets and «Glyphasolin» capsules, the level of glycosylated haemoglobin, which decreased along with the level of glucose in the blood of animals, was significantly reduced in comparison with diabetic control. After 14 days of research, the "Glyphasolin" capsules showed more pronounced hypoglycemic activity (4.4 % and 8.0 % more) than the "Glyphasonorm" tablets and the reference drug metformin. The «Glyphasolin» capsules on the 12th day of the study showed a marked decrease in glycosylated haemoglobin in the blood of animals (3.1 % and 5.6 % more) than the «Glyphasonorm» tablets and metformin.

Conclusions. In the experimental model of streptozotocin diabetes in rats, "Gliphasolin" capsules showed a more pronounced hypoglycemic effect, which was manifested by a decrease in the content of glycosylated haemoglobin in the blood and prevailed over the effect of the comparative drug metformin and "Gliphasonorm" tablets.

«Glyphasolin» capsules and «Glyphasonorm» tablets based on bioflavonoid complex from bean show promise in the treatment of type 2 diabetes on the background of obesity and reducing the risk of micro- and macroangiopathy
Features of metacognitive beliefs of adolescents with a high level of personal anxiety
Authors: Sereda Olena
Published: January 2023

The article contains an analysis of the problems of personal anxiety among adolescents. Anxiety is considered as a property of the personality, which is manifested in the cognitive aspect, emotional reaction, physical reaction and behavior of the individual. The general purpose of the study was to identify the metacognitive beliefs of adolescents with a high level of personal anxiety and was realized thanks to the implementation of such tasks as: identifying adolescents with a high level of personal anxiety, studying personal attitudes towards symptoms, determining and comparing the metacognitive beliefs of adolescents with different levels of personal anxiety, determining predictive power of metacognitions of young people with a high level of personal anxiety.

 The results of a study of the prevalence of reactive and personal anxiety among adolescents are presented, a comparative analysis of one's own opinion regarding the presence of symptoms and test results of adolescents with a high level of personal anxiety is carried out. A new approach to the study of personal anxiety from the perspective of metacognitive beliefs is proposed, which is built on the principles of cognitive-behavioral psychology. Metacognition is defined as the basis of automatic thoughts, emotional and physical reactions, and the role of metacognitive processes in the interpretation of information about the level of security, the formation of judgments, assessments. The article proves that the metacognitions of adolescents with a high level of personal anxiety deprive them of flexibility in behavior, limiting the variability of life experience. The metacognitive portrait of young people with a high level of personal anxiety is characterized, in particular: the belief that anxiety is a protection against difficult emotions in anticipation of negative events; a positive attitude towards one's own anxious experiences is reinforced by a desire to prevent negative outcomes. As a result of the conducted research, the prospects for developing a method of targeted psychological influence within the cognitive-behavioral approach have been opened
Sustainable entrepreneurship strategies for SMME development in the fourth industrial revolution within Kwazulu-Natal, South Africa
Authors: Sheik Ismail , Kader Abdulla
Published: January 2023

The emergence of the fourth industrial revolution (4IR) poses the risk of bringing about a new wave of disparities due to changed employment patterns and a global economic environment that is experiencing rapid transformation. Automation and so-called «thinking machines» are displacing humans in a variety of professions and functions, which in turn is causing businesses to reevaluate the competencies they seek in prospective workers. The main goal of sustainable economic participation in the 4IR is to harness the localized economic potential by promoting innovation to all its growth aspects. This is accomplished via a unified approach to development rather than a «one size fits all» solution. To that aim, small, micro, and medium-sized enterprises (SMMEs) is one of the most crucial pillars that support the economy. As a result, sustainable entrepreneurship in the context of the 4IR was approached in this research as an outcome-based local initiative that that was addressed by key stakeholders.
The fundamental purpose of this study was to analyze the factors that led to the successful identification and utilization of local resources, ideas, and skills by entrepreneurs in order to stimulate economic growth and development in the Fourth Industrial Revolution (4IR). The aim of this study was to evaluate the problems faced by company owners and the impact that provincial and national government aid had on their ability to continue operations. In this study, qualitative research technique and an exploratory research methodology were employed. The 12 SMMEs comprising the study's population are located in the eThekwini area of KwaZulu-Natal, South Africa. The participants in the study were not selected by chance, but rather on the basis of a predetermined criterion aimed at senior management. Semi-structured interviews constituted the entirety of the data collection. The data was analyzed via NVivo and thematic analysis. This research has contributed to the subject by presenting a business sustainability strategy for SMMEs, with the aim of enhancing the performance and growth of these firms in an uncertain digital realm.
Application of sensor analysis methodology in fish snacks technology for express bars with regulated histamine content
Authors: Manoli Tatiana , Nikitchina Tatiana , Tkachenko Oksana , Kameneva Natalia , Barysheva Yana , Myroshnichenko Olena , Titlova Olha
Published: January 2023

The object of research is the technology of fish snacks for express bars with a regulated histamine content for the rational correction of certain diets of the population. One of the most problematic places in the technology of fish fermented products is the accumulation of biogenic amines with toxic properties. An increased intake of histamine can cause the so-called «histamine» migraine (Horton's syndrome), headache (Harris' neuralgia, characterized by pain in the eyes, forehead, temporal part of the head, lacrimation, inflammation of the nasal mucosa) and other symptoms, including the gastrointestinal tract, sweat, increased secretion of gastric juice, increased heart rate, and decreased diastolic (lower) blood pressure. In addition, the appearance, namely the shape and color of snacks, reduces the attractiveness of snack products.
In the course of the study, methods of sensory analysis, standard methods for studying physical and chemical quality indicators were used. The chosen methodology makes it possible to timely correct technological processes for the production of fish snacks to obtain high-quality, safe food products with a harmonic sensory profile, as well as to control the accumulation of biogenic amines.
The obtained results of the research conducted allow to state that the proposed technological methods and the developed ingredient composition of the mince mixture in the production of snacks contribute to the expansion of the range of snack products for a healthy diet with high consumer properties that provide an attractive appearance, safety, and biological value. This is due to the fact that the consumer preferences for shape, color, usefulness and safety taken into account made it possible, based on the methodology of sensory analysis, to scientifically substantiate the choice of raw materials, form requirements for the appearance of finished products and containers used for packaging snacks. The main raw material for the production of snacks is fish from inland waters of Ukraine with a low-active enzymatic system and, accordingly, a small amount of low-molecular volatile substances involved in the formation of odor. The production process ensures a high sanitary level and the use of consumer packaging of small capacity, which meets the modern requirements of visitors to express bars. In addition, natural biopolymers of plant origin have been introduced into the recipe composition of the minced mixture, which allow to control the process of accumulation of biogenic amines.
Development of automatic control methods of vessel rotation around the pivot point without drift
Authors: Zinchenko Serhii , Tovstokoryi Oleh , Sapronov Oleksandr , Petrovskyi Andrii , Ivanov Artem , Tymofeiev Kostiantyn
Published: January 2023

The object of research is the processes of automatic control of the vessel rotation around the pivot point with zero drift. In recent years, the number of vessels and their sizes has increased significantly, while the size of ports has grown much more slowly. There is an urgent need to optimize control processes, especially in compressed waters. One of the directions of such optimization is the use of the pivot point concept – an alternative vision of the vessel movement during its maneuvering. It is shown that the circulation radius and the position of the vessel on circulation are determined by the pivot point abscissa and ordinate. Linearized models of the two most common control schemes are considered: the control scheme of a single-screw conventional vessel without a bow thruster and the control scheme of a single-screw conventional vessel with a bow thruster. For the steady state of each of these schemes, controls were obtained that ensure the circulation of the vessel around a pivot point position without drift angle. This makes it possible to reduce the width of the traffic lane, increase traffic safety, reduce hydrodynamic resistance and fuel consumption, create favorable conditions for carrying out technological operations, for example, mooring, and reduce the influence of the human factor on control processes. The workability and effectiveness of the developed methods were verified by mathematical modeling of the MSС Container Ship (Dis. 32025t) automatic mooring without drift angle on the imitation modeling stand created by the authors on the basis of the Navi Trainer 5000 navigation simulator. The obtained capabilities are explained by the use of the mathematical model of the vessel in the on-board controller of the automated system and modern mathematical apparatus. The developed methods can be used on the vessels, provided to integration into the existing automated system of an on-board controller with open architecture, to increase the capabilities of automatic vessel movement control. Today, all automated systems already use the electronic principle of generating and transmitting signals from control devices (power plant telegraph, rudder, bow and stern thruster telegraphs and etc.) to executive devices, which greatly simplifies the integration of the on-board controller and the creation of a closed circuit of automatic control.
Developing a prototype of fire detection and automatic extinguisher mobile robot based on convolutional neural network
Authors: Saif Amin , Muneer Gamal , Abdulrahman Yusuf , Abdulbaqi Hareth , Abdullah Aiman , Ali Abdullah , Derhim Abduljalil
Published: January 2023

The object of research is a prototype of fire detection and automatic extinguisher mobile robot based on convolutional neural network. Within the recent few decades, fires are considered as one of the most serious disaster that occurs in many places around the world. The severity of fire incidents causes damages to buildings, infrastructures and properties. Resulting losses of human’s life and costs them a lot of losses. Thus, fire poses a great threat to us significantly; it is extremely dangerous for fire fighters. Fires can be resulted by materials such as rubber and chemical products. Other sources of fire are the short circuits on electrical devices and faults in power circuits. Additionally, overheating and overloading problems can be the cause of fire incidents. All these reasons lead to bad consequences when there is no immediate response to such problems. The advent of computer vision technology has played such a significant role for human life. Artificial intelligence field has improved the efficiency and behaviors of robotics beyond expectations. The interference of artificial intelligence made robotics act intelligently. For this reason, in this paper we presented a mobile robot based on deep learning to detect the fire source and determines its coordinate position then automatically moves toward the target and extinguish fire. Deep learning algorithms are the efficient ones for object detection applications. CNN model is one of the most common deep learning algorithms which have been used in the study for the fire detection. Due to the insufficient amount of datasets and large efforts required to build model from scratch. MobileNet V2 is one of the CNN models that support transfer learning technique. After training the model and testing it on 20 % of the used datasets the classification accuracy achieved up to 98.01 %. The motion repeatability of the robot has been implemented and tested resulting mean error 0.648 cm.
Atmospheric plasmas research linked to electromagnetic signals and earthquakes
Authors: Straser Valentino
Published: January 2023

This paper presents the outcome of monitoring aimed at studying seismic precursor candidates with a multi-parameter system, carried out at a Science Camp in July 2022 in the northwestern Italian Apennines, in the province of Parma. Pre seismic signals, closely related to the preparatory stages of an earthquake, were detected with a crustal diagnosis, based on physical signals, generated by tectonic stress. The instrumental results show a potential temporal concatenation, which describe, at the level of hypothesis, the phases of the ongoing tectonic stress. The model followed Zou’s theories who which associate the formation of plasmas in the atmosphere with the piezoelectricity of rocks under stress. According to his model, rocks placed under tectonic stress and in the presence of moisture can produce both charged particles and radio electromagnetic waves, at high and low frequencies. A spherical plasmoid would originate from this combination as a wave-particle interaction effect. According to Teodorani’s description High-Frequency radio waves-particularly microwaves-would heat and ionize the surrounding air, while low-frequency waves, particularly Very Low Frequencies and Extremely Low Frequency, would help condense the plasma, which in turn would immediately go into swirling motions within it, until it formed the «self-contained» structure seen in the sky as a light phenomenon. Monitoring, therefore, involved the detection of low-frequency waves preceding plasmas in the atmosphere, directional electromagnetic signals from the Radio Direction Finding (RDF) network, and the occurrence of an earthquake within the 5/6 days’ time window along the same fracture line. A study model that, if confirmed, could be applied to other seismic zones for crustal monitoring.
Wertep
Authors: Jurkowski Henryk
Published: January 2023

Vertep is a part of the group of religious representations belonging equally to the church rituals as well as to the follklore customs. It was born with the other mystery plays together having their origins in the iconographic Gospel representations such as ”Christ cribs” in Byzantium and subsequently the performances of the Birth of the Infant such as the famous performance act prepared by saint Francisque from Asis in 1223. Later, the local puppet presentation of ”Nahvity" had developed. They were ”Navidad” and ”Nahvite'” in the western Europe and their counterparts in the middle Europe. Their common origin were the church utensils such as tabernacle or the small cabinet altar called retablo. These presentations in the middle Europe were called ”crib” or ”szopka” while in eastern Europe ”vertep”. The ”Nativity” included the shepherds' homage, the Three Kings) homage as well as the massacre of lnnocents and Herod's punishment. Later on the new secular motifs and characters appeared, representing problems of the folk life. At the time of modernism, real artists showed interest in „Nativity" giving it a new artistic interpretation. Vertep as a variety of ”Nativity” has its own properties and seems to be an independent product of the Ukrainian culture.
Paradigms of the Sick, Healthy, and Normal Security in Social Sciences
Authors:   Military University of Technology (Poland), Jagusiak Bogusław
Published: January 2023

One of the many divisions of security exposed in the literature dealing with it is the ambivalent division into positive and negative security, which sometimes, somehow combined and mutually limiting, manifest themselves in normal and real security. Starting from this distinction, I develop their descriptions based on Erich Fromm’s explanations of a healthy, sick, and normal society. Simultaneously, I argue that sick societies pursue negative security by preferring war and destruction, while healthy societies pursue positive security by preferring love, peace, and creative activity. It is a preference based on striving, in the case of a healthy society and positive security, “to be”, as Fromm states, and in the case of a sick society and negative security, “to have”, and finally, in the case of normal security, to mutually limiting “to have” and “to be”. I deepen this description by referring to the thought of Bertrand Russell, in which positive and good security is defined “as one that should be by itself”, and negative and bad “as one that should not be by itself”. On the other hand, by bolding and broadening this description, I associate positive security (based on “to be”) with the concept of “civilisation of love”, “civilization of life”, and “civilization of brotherhood”, while negative security (embedded in “to have”) with “civilisation of killing”, “civilisation of overkilling”, and “civilisation of death”, and finally, normal security (embedded on mutually limiting “to be” and “to have”) with the liberal civilisation of security and control.