bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of enterosorbing dietary fibers on the quality and safety of fermented milk products
Authors: Alimardanova Mariam , Bakiyeva Venera
Published: September 2022

This paper considers the possibility of using rice husks as enterosorbing fibers in the production of fermented milk products. The results of studying the fermented milk product using L. diacetylactis, L. bulgaricus, and Bacteriumbifidum microflora with the introduction of enterosorbing dietary fibers (ESDF) are reported. The technology of processing and preparation for the introduction of rice husks is described. Rice husks were studied for different particle sizes, the optimal option in the form of powder was selected. The behavior, influence on the shelf life, and viability of lactic acid bacteria in the finished product were investigated. The study of the chemical composition showed that in the examined samples the protein content increased by 25 %, carbohydrates – by 1.6 %, and dry matter – by 18 %; the content of dietary fiber (2.3 g) is 9 % of the daily value. An organoleptic assessment was also analyzed, based on which it was revealed that the rational dose of rice husks is 12 %. The dose of ESDF introduction varied from 0 to 5 %, in increments of 1 %. The optimization method revealed the area of the optimum, based on which repeated studies of the fermented milk product, produced according to the optimal formulation, were carried out. To assess safety, such indicators as QMAFAnM (the quantity of mesophilic aerobic and facultative anaerobic microorganisms), titrated acidity and pH, as well as the content of heavy metals in the resulting samples were investigated. Enriching the fermented milk product with dietary fiber has made it possible to obtain a product with higher organoleptic properties and increased nutritional value while maintaining the consumer properties of the product
Identification of the influence of technological factors on the growth and development of lactic acid microorganisms in pastille marmalade products enriched with lactic acid starters
Authors: Pronina Yuliya , Nabiyeva Zhanar , Belozertseva Olga , Shukesheva Saule , Samodun Abdysemat
Published: September 2022

Prototypes of pastille marmalade products with starters of lactic acid microorganisms have been developed. Pastille marmalade products that contain live cells of probiotic culture (from 1 to 3 CFU/g) help strengthen and maintain immunity. The macro and micromorphology of the probiotic culture were investigated, which confirmed the belonging of microorganisms to lactic acid. The studies reported here were scientifically substantiated by the method of mathematical modeling. Based on the regression equation, it was revealed that the growth of lactic acid microorganisms in the product is affected by the volume of whey (250 ml), the volume (0.02 g) and the time of revival of the starter culture (6 hours). A more significant factor was the volume of application of lactic acid microorganisms, from 0.01 to 0.02 g, which affects the growth of lactic acid microorganisms (increases) in the product. The antimicrobial activity of isolated crops in relation to E. coli was studied. The zones of illumination of the isolated colonies in relation to E. coli range from 0.1 mm to 0.5 mm.
The results show that antagonistic properties affect pathogenic and conditionally pathogenic microorganisms in the gastrointestinal tract.
The antioxidant properties of pastille marmalade products have been established. When applying starters of lactic acid cultures, the volume of antioxidants increased by 1.7 and 2.2 times compared with control.
In this regard, the development of pastille marmalade products with starters of lactic acid microorganisms is a relevant and promising task because they are natural, have an immunostimulating effect, and expand the range of confectionery products
Defining quality indicators for sugar pasteswith demineralized whey during storage
Authors: Rybchuk Larysa , Vdovichen Anatolii , Romanovska Olha , Danyliuk Inna , Piddubnyi Vladimir , Losheniuk Iryna , Kravchenko Mihailo , Yudina Tatiana , Romanenko Roman
Published: September 2022

This paper considers the changes in quality indicators of sugar pastes with dry demineralized whey and glycerin during storage in order to establish their technological shelf life.
Based on the results of studying changes in the mass fraction of moisture of sugar pastes over 30 days, a decrease in this indicator in the control sample was established, by 80 %, and in the experimental one – by 30 %.
Examining the sensory characteristics of consistency according to the devised descriptors has made it possible to establish that the control sample of sugar pastes onday 10 of storage is technologically unsuitable. Its consistency is characterized as too dense, hard, brittle, not uniform, with lumps. Accordingly, the molding ability, which received 3.45 points, decreases. The prototype, even on day 30 of storage, has acceptable consistency characteristics: moderately hard and dense, softish, homogeneous with the presence of barely perceptible small inclusions. A high molding ability is retained, which received 4.3 points.
Experimental studies of the fractional composition of the solid phase and the dispersion of sugar pastes are consistent with studies into the sensory characteristics of the consistency. It was established that on day 10 of storage, in the control sample the fractional composition of particles with a size of 21 to 30 µm prevails, the content of which is 62 %, which characterizes the structure as coarse crystalline. In the prototype on day 30 of storage, thecontent of particles the size of 11 to 20 µmwas 72 %, which preserves the quality of the paste and characterizes its structure as finely crystalline.
The results of the study made it possible to establish a tendency to slow down the build-up of solid particles of the developed sugar pastes, and their growth to a critical size of 22.6 µm.The data obtained have made it possible to establish the technological shelf life of the developed sugar pastes, which was 30 days, which is 3 times more than that of the control.
Consequently, the introduction into the formulation composition of sugar pastes of demineralized whey at a concentration of 50 % and glycerin at a concentration of 5 % makes it possible to extend their technological shelf life. This is important from a practical point of view and solves the problem set.
Implementation of the decision making along with analytic hierarchy process (AHP) approaches in the assessment of the petroleum products cost based on the statical model
Authors: Nikkeh Nada Salman , Abdulhussein Suhair Muafaq , Mohammed Mohammed Ali
Published: September 2022

In this study, the investigation of the decision-making strategy was used to select the alternative that was finally adopted in the crude oil refining process. This strategy was used to select the option that was ultimately implemented in the process. The Doura industrial refinery was the source of the information that was acquired for the analysis. The super decision software was applied in order to carry out an examination of the PDS components. After going through the process of refining, one can get the items on the following list: There are five main types of petroleum products, and they are: gasoline, gas oil, liquid gas, black oil, and white oil. Gasoline is the most common type of petroleum product. In order for the parameters to be optimally accommodated by the solution that is finally decided to be the most practical one, the analytic hierarchy process, also known as AHP, technique has been applied. This has been done in conjunction with the parameter determination system, or PDS. This has been done in order to reach the maximum potential level of productivity in the most efficient manner. As a result of the fact that this was the circumstance, a probe into the preliminary phase of the project was carried out, which in the end resulted in the expenditure of a grand total of 3969463 USD. This was determined by taking into account the costs of running the firm in addition to the prices of the raw materials that were utilized in the production process. In addition, the output of the refining process was not only dependent on the price and quantity of the product, but also on the amount of product that was actually sold. This meant that the cost and quantity of the product were not the only factors that determined the output. In order to determine what should be done during the process of making an estimate of what should be done in order to arrive at the response that was going to be the most advantageous taking everything into consideration, a mathematical model was applied as part of the process.
Solution of the problem of the theory of elasticity and analysis of the stress state of a fibrous composite layer under the action of transverse compressive forces
Authors: Miroshnikov Vitaly , Savin Oleksandr , Younis Basheer , Nikichanov Vyacheslav
Published: September 2022

An analytical-numerical solution of the spatial problem of elasticity theory for a composite in the form of a layer with two longitudinal endless continuous cylindrical inclusions is proposed. Homogeneous, isotropic materials of the layer and inclusions differ from each other in the modulus of elasticity and Poisson's ratio. Normal stresses are set on the upper and lower boundaries of the layer. The object of study is the stress state of such a composite. The problem is the lack of a high-precision method for calculating multiply connected bodies of this type. The solution of the problem is based on the generalized Fourier method for the Lame equations in various coordinate systems. The problem is reduced to an infinite system of linear algebraic equations, which is solved by the reduction method. In a numerical study, the stress state was obtained inside the composite bodies, within their conjugations, and on the isthmus between inclusions. It has been established that extreme stresses sρ=–0.9306 MPa, sf=–0.5595 MPa, tρf=–0.315 MPa occur on the mating face. Analysis of the stress state indicates the need to take into account the normal stresses on the mating surface. This is due to the presence of a binder, which may differ in physical characteristics from the main components of the composite. The results have logical physical correctness and, in simplified versions, are fully consistent with the results of similar problems from other approved sources. In the work, the transition formulas in the basic solutions between different coordinate systems, the conjugation conditions for different bodies, and the strict fulfillment of the equilibrium conditions for given boundary functions are simultaneously applied. This made it possible to obtain a high-precision solution of a new problem in the theory of elasticity for a layer with cylindrical inclusions and given only stresses on the boundary surfaces. The proposed method of calculation can be applied in the design of structures made of fibrous composites in the aircraft industry and construction.
Substantiation of application technology of hygroscopic materials for dust prevention of roads with the lowest type of surfaces
Authors: Kiyalbay Saniya , Sagybekova Akmaral , Kiyalbaev Abdy , Nauruzbayev Kabdullagazy , Espayeva Gulsum , Bektursunova Gulnar
Published: September 2022

The article presents the results of experimental study for types of loose soils are easily subject to dusting. In connection with this problem, the task is the study and study of the causes and structure of the formation of dustiness in the roadside zone of roads with common types of coatings or without coatings. The experimental study aims to determine the drying time of chemical dust prevention solutions under the influence of solar radiation and the norm of their distribution.
The object of the research is dust generated on roads with low transport and operational performance (temporary roads in places of road repair work, roads to quarries, etc.), and materials used for dedusting road surfaces.
The problem to be solved is to reduce the emission of a large amount of dust on roads without pavements or with inferior types of pavements, which adversely affects the human body.
The results obtained are the identification of a way to combat dust on road surfaces, ensuring a decrease in wear when vehicles move on roads without pavements.
At the same time, the classification of dust according to their sources of formation is expected at the output result.
Due to their features and characteristics, these results allowed the author to solve this problem - effective ways to combat dust on road surfaces are: treating them with dust-removing materials that reduce wear; maintaining the original evenness; reduction of air pollution; improvement of traffic conditions for cars and the sanitary and hygienic condition of roads near settlements.
For experimental tests, traditional salt solutions of various concentrations (NaCl, MgCl2, CaCl2, MgCl2×6H2O, etc.) and solutions of foreign–made stabilizing additives Durasoil and Soiltac from SOILWORKS were taken.
A numerical implementation study of the stresses and noise generated by the gear engagement in the gearbox
Authors: Khleif Ali Abbar
Published: September 2022

With the development of automotive technology and the increase in the performance of the moving parts in the car, the most important of which is the engine and gearbox. Where companies are working to increase the sound insulation of the movement of these parts outside and reduce the noise and stress generated because of movement, to study these noises and stresses, and to know the vibrations that give a high sound rate and wave pressure. Where it worked on a standard gearbox and simulated the movement of gears. To find out the stresses that are calculated because of this movement, the external stress caused by this movement of the gears, as well as the speed of the gears in the case of rotation, is also known. The results proved the contact areas of the main lip on the outer cover are greatly affected during the gearbox rotation process and also at high vibrations. The effect of vibrations and the Hertzian rate is significantly affected by it. At frequencies that reached 1500 Hz the value of stresses and deformation was relatively large. The acceleration and due to the different gear teeth, the acceleration value in this case was 3000 m/s2. The maximum value of shear stresses reached 9.5×104 Pa at the frequency between 1500 and 2000 Hz. The value of the vibration 1500 Hz is the highest value that achieved high noise as it was 112 dB, which is a 112 dB higher than the rest of the vibrations. The achievement of the condition of the presence of large noise when vibration 1500 Hz is reached is achieved by analyzing the noise produced by a car’s gearbox at that level. The amount of noise pressure and its wave through the outside air of the gearbox, where the amount of wave pressure of the noise reached a maximum value of 400 Pa and the lowest value ‑ 500 Pa.
Identifying the effect of channel wall ripple height on multiphase flow
Authors: Hussein Mohammed Ali Mahmood , Hasan Wajeeh Kamal
Published: September 2022

With the development of simulation technology and the ability to obtain accurate numerical results, as well as with the development of information technology, software that can solve numerical problems has become necessary to see physical changes that cannot be seen by the human eye. Multiphase stream field is settled utilizing the volume of fluid (VOF) method, and the flow equations are assessed and addressed mathematically by the notable limited volume approach. As a multiphase framework without mass exchange, air/water stream is considered. For practically all cases considered in this review, the heat transfer coefficient is higher. In any case, a critical punishment pressure drop was observed especially for high mass courses through undulating channels. A wavy channel with a variable wave height was simulated to see the variables of the flow process for multi-phase materials with a square cross-section, where different speeds were used for the inlet duct for air, water and steam. The results proved that the increase in the height of the channel wall wave works to obstruct the flow and thus increases the time required for the fluid to reach the exit area. The value of time required for steam and air to reach the exit area at the channel wall wave height of 25 mm and the flow velocity of 0.1 m/s was 6.01 s, which is the longest time it took for the fluid to reach the exit area compared to other cases. The pressure value reflects the amount of turbulence in the flow process, and it's crucial for thermal improvements based on flow turbulence. The entrance flow velocity is 0.1 m/s and the wall wave height is 25 mm at a time of 2 s, when the pressure reaches 873.7 Pa.
The effect of green supply chain practices on the firm performance: an empirical research
Authors: Dogan Mesut , Cerci Hasan Serhat , Koyluoglu Alaaddin Selcuk
Published: September 2022

Environmental dimensions have been included in every area of life and every activity with the increasing environmental sensitivity and the concern to leave resources for future generations. This strategic path and strategic decisions gained an environmental dimension under the name of green supply chain management and green supplier selection, and attracted great attention in both academic and corporate life. New strategies such as green principles and related environmental performance are imperative and very important for companies, with increasing awareness of environmental issues and increasing concerns for future generations and our world. In order to address the growing environmental concerns of various stakeholders, companies have focused on external partners in the supply chain. The purpose of the current study is to investigate the effect of green supply chain practices on firm performance. To this end, a survey was conducted with the managers of 120 large-scale firms operating in Turkey in order to measure this effect. Explanatory and confirmatory factor analyses, correlation analysis and multiple regression estimators were used in the empirical analysis. Since all items of the Green Supply Chain Applications Scale and Firm Performance Scale had factor loads (>60), all items remained in the analysis. In DFA, item factor weight values with 3 sub-dimensions are in the range (0.73; 0.90). According to these results, the internal and external supply chain practices have a positive and significant effect on all the indicators of firm performance that are reduction of pollutants, reduction of green costs and firm competitiveness. Similarly, reduction of pollutants and reduction of green costs, two indicators of green performance, positively affect firm competitiveness.
Hybrid selection framework for class balancing approaches based on integrated CNN and decision making techniques for lung cancer diagnosis
Authors: Jassim Mustafa Mohammed , Jaber Mustafa Musa
Published: September 2022

Lung cancer is the fastest-growing and most dangerous type of cancer worldwide. It ranks first among cancer diseases in the number of deaths, and diagnosing it at late stages makes treatment more difficult. Artificial intelligence has played an essential role in the medical field in general, and early diagnosis of diseases and analyzing medical images in particular, as it can reduce human errors that may occur with the medical expert in medical image analysis. In this study, a hybrid framework is proposed between deep learning using the proposed convolutional neural network and multi-criteria decision-making techniques in order to reach an effective and accurate classification model for lung cancer diagnosis and select the best methodology to solve the problem of class imbalance datasets, which is a general problem in medical data that causes problems and errors in prediction. The IQ-OTHNCCD dataset that has a class imbalance was used. Three class balancing techniques were used separately and the data from each one enters the proposed convolutional neural network for feature extraction and classification. Then the Fuzzy-Weighted Zero-Inconsistency algorithm and VIKOR were used to make the ranking for the best classification approach and determine the best technique to balance the classes. This contributed to increasing the efficiency of the classification, where the best model got an accuracy of 99.27 %, sensitivity of 99.33 %, specificity of 99 %, precision of 98.67 % and F1-score of 99 %. This study can be applied to any data that suffers from the class imbalance problem to find the best technique that gives the highest classification accuracy.
Optimization of the technology for designing sensitive gas sensors based on zinc oxide using a sol-gel method
Authors: Neshpor Oleh , Deyneko Natalya , Ponomarenko Roman , Maiboroda Artem , Kropyva Mykhaylo , Blyashenko Oleg , Yeremenko Serhii , Sydorenko Volodymyr , Servatyuk Vasyl , Pruskyi Andrei
Published: September 2022

This paper has investigated the nanostructured samples of zinc oxide intended for use as a gas sensor. Experimental samples were obtained by the economical sol-gel method, suitable for large-scale production. The dependence of the efficiency of gas sensors based on zinc oxide on temperature was established. The electrical properties of experimental samples were investigated in the air in the range of values of the initial voltage of 5–30 V and at temperatures of 320, 370, and 450 K.
It was established that the current-voltage characteristic for nanosized zinc oxide is non-ohmic, but the nature of the curves can change due to an increase in the operating temperature. The obtained experimental dependences are explained by the peculiarities of the morphology of the obtained nanostructured zinc oxide, which affects the value of the contact resistance in the structure. A large number of nanoscale particles leads to an increase in the number of energy barriers, which negatively affects the sensitivity of experimental samples to the gaseous medium. The study of the sensitivity of samples to the established gaseous medium, namely 100 ppm CO, was carried out.
The electrical conductivity of zinc oxide is determined by oxygen vacancies that are electron donors, and, accordingly, the conductivity activation energy is determined by the donor levels formed by vacancies in the ZnO forbidden zone. During heating, there is a decrease in the resistance of the sample with increasing temperature; electrical conductivity is determined by the thermal generation of electrons. Understanding the dependence of the sensor sensitivity on temperature and the use of sensitive ZnO layers of different morphology will make it possible to recognize gaseous components in a complex mixture.
Identifying optimal message embedding location in audio steganography using generative adversarial networks
Authors: Hajer Muatamed , Anbar Mohammed
Published: September 2022

Audio steganography (AS) uses the auditory redundancy of the human ear to conceal the hidden message inside the audio track. In recent studies, deep learning-based steganalysis has swiftly revealed AS by extracting high-dimensional stego acoustic features for categorization. There is still an opportunity for improvement in the current audio steganography required for managing communication confidentiality, access control and data protection. The main objective of this research is to improving the data protection by identifying the data embedding location in the audio. Generative Adversarial Network-based Audio Steganography Framework (GAN-ASF) is presented in this study, and it can automatically learn to provide better cover audio for message embedding. The suggested framework's training architecture comprises a generator, a discriminator, and a steganalyzer learned using deep learning. The Least Significant Bit Matching (LSBM) message embedding technique encrypts the secret message into the steganographic cover audio, which is then forwarded to a trained steganalyzer for misinterpretation as cover audio. After performing the training, stenographic cover audio has been generated for encoding the secret message. Here, Markov model of co-frequency sub images to generate the best cover frequency sub-image to locate an image's hidden payload. Steganographic cover audio created by GAN-ASF has been tested and found to be of excellent quality for embedding messages. The suggested method's detection accuracy is lower than that of the most current state-of-the-art deep learning-based steganalysis. This payload placement approach has considerably increased stego locations' accuracy in low frequencies. The test results GAN-ASF achieves a performance ratio of 94.5 %, accuracy ratio of 96.2 %, an error rate of 15.7 %, SNR 24.3 %, and an efficiency ratio of 94.8 % compared to other methods.
Study of the formation of micelles and their structure by the spin probe method
Authors: Bezuglaya Elena , Lyapunov Nikolay , Chebanov Valentyn , Liapunov Oleksii
Published: September 2022

The aim. To study the surfactant solutions depending on the type and concentration of surfactants as well as their interaction with some excipients by spin probe method.

Materials and methods. Solutions of ionic and nonionic surfactants containing 4 spin probes differing in molecular structure and solubility were studied. Electronic paramagnetic resonance (EPR) spectra were obtained and their type and parameters were determined. The critical micelle concentration (CMC) was determined from the surface tension isotherm, and the rheological parameters were studied by rotational viscometry.

Results. The shape of the EPR spectra and the spectral parameters of the spin probes depended on both the surfactant concentration and the molecular structure and solubility of these spin probes. There was a concentration range in which associations with surfactants formed at surfactant concentrations below the CMC. At surfactant concentrations above the CMC and up to 1 %, the structure of the surfactant micelles did not change. In the micelles, the surfactant modelling probes rotated rapidly about the long axis of the molecule and perpendicular to it, while they were fixed in the radial direction. The rotational diffusion of probes dissolved in water was much faster. The micelle cores formed by nonionic surfactant and P338 were more viscous compared to ionic surfactants. Surfactant micelles were anisotropic in viscosity, and different segments of the alkyl chains of surfactant modelling probes had different dynamic properties. The packing of molecules in the micelles was more ordered and compacted at the level of the fifth carbon atom. The interactions between surfactant and probe and between cationic surfactant and disodium edetate were determined from the parameters of the EPR spectra. The relationship between the changes in the parameters of the EPR spectra with increasing temperature, the P338 content in the solutions, and the sol-gel transition was revealed. Solubilization of lipophilic substances by P338 solutions increased due to the interaction of propylene glycol and P338.

Conclusions. The shape and parameters of the EPR spectra in real solutions and micellar solutions of surfactants were different and also depended on the structure and solubility of spin probes. Surfactant micelles were anisotropic in viscosity, and different segments of the alkyl chains of surfactant modelling probes had different dynamic properties. The packing of molecules in the micelles was more ordered and compacted at the level of the fifth carbon atom. The EPR spectra and/or their parameters changed due to the interaction between surfactant and probe, surfactant and other substances, or sol-gel transitions in P338 solutions
Assessing of photoluminescence and structural properties of Dy+3 doped cadmium tantalate phosphor
Authors: GÜLERYÜZ Lütfiye Feray
Published: September 2022

According to the charge balance, trivalent dysprosium doped Cdx-1Ta2O6:xDy3+ (x=0.5, 1, 2, 3, 5) phosphor series was fabricated by solid state reaction route at 1100 C for 8 h. The synthesized phosphors were investigated by XRD (X-ray diffraction), SEM (scanning electron microscopy), and PL (photoluminescence) analyses. XRD and SEM analyzes revealed the orthorhombic colombite crystal structure and the presence of oval-like and shapeless morphology with submicron and several micron grain sizes, respectively. With the excitation of 387.8 nm, the phosphors exhibited blue and yellow emissions at 482.4 nm and 578.5 nm depending on the 4F9/2→6H15/2 and 4F9/2→6H13/2 transitions of Dy3+, respectively. The concentration quenching did not occur because the improvement in the charge balance reduced the structural defects and decreased the conversion of excitation energy to non-radiative transitions. The emission intensity of cadmium tantalate phosphor increased with increasing Dy3+ ion concentration up to x=5 value, and did not occurred the concentration quenching which reduces emission intensity. The Commission Internationale d’Eclairage (CIE) coordinates of Cdx-1Ta2O6:xDy3+ (x=0.5, 1, 2, 3, 5) phosphors were found near the white region in the chromaticity diagram
Revista Panorama
Authors: Politécnico Grancolombiano Editorial
Published: September 2022

Encuentra el número completo de la Revista Panorama en los siguientes formatos:
Morphological Evaluation Results of Some Features of Alluvial Sands in the City of Dnipro
Authors: Ulyanov V. Y
Published: September 2022

Purpose. The research is aimed to obtain some missing data on the morphology of river sands within the city, in particular, reliable quantitative indicators that can be used in the calculation of soil bases. Methodology. According to the experimental-analytical method, a complex soil morphology was used, which takes into account the shape and nature of the grain surface in the entire sand volume studied. Morphological assessment was carried out not only for individual sand particles, but also for the entire volume of the soil studied, due to this an important factor in the formation of the shape and nature of the sand grain surface is the mineral composition of sand. For the most of the studied sands, quartz was the predominant mineral. In further studies, it is planned to study the Dnipro River sands of deeper horizons, which would make it possible to obtain data on the formation of contacts between sand grains, which can be lamellar or other shapes. Findings. This paper presents the results of determining morphological indicator, as well as studying the shape and nature of the surface of alluvial sand grains of the 1st floodplain terrace of the Dnieper River valley in the area of Monastyrskyi Island in the central part of the city. The results of similar works on the study of a number of genetic types of Quaternary sands of various genesis in the Dnieper River valley were also analyzed. Due to this analysis, data were obtained on the morphology of monomineral oligomictic alluvial sands, the shape and nature of the alluvium sand grains surface. Originality. For the first time for the central region of the city, some basic morphological characteristics of river Quaternary sands of the Dnieper River valley were obtained. It is also possible to note the tendency of decrease of morphology indicator in river sands of the Dnieper valley from sources to the mouth. Practical value. With all confidence, the results of the studies carried out can be implemented in the sandy soils of the foundations of buildings and structures of the city, as well as to artificial earthworks, in particular, alluvial massifs.
Research of the Use Consequences of Patterns and Common Approaches In the Architecture Development of Cross-Platform Applications
Authors: Horbova O. V , Syrota O. A
Published: September 2022

Purpose. Nowadays, it is difficult to imagine a person who would not use a smartphone. The main direction in creating many applications are such operating systems as iOS and Android. One of the essential stages of the life cycle of cross-platform applications for iOS and Android is building architecture. It is important not only to be able to build an architecture using well-known «tools», but also to understand to which extent this should be implemented and what impact it will have on the software product in the future. The aim of the work is to analyze approaches to development with excessive or insufficient use of design principles and templates, as well as analysis of the results of the final product, cross-platform software for iOS and Android operating systems. Methodology. To improve the existing software, a static analyzer has been designed and implemented, which is focused on the development of architecture in software of different sizes and types. Only the necessary templates and design approaches which allowed implementing the necessary functionality without complicating the system and guarantee easy support, testing and extension of functionality if it is needed, were used to create the software product. Findings. During the experiments, it was found that when designing cross-platform software for iOS and Android operating systems, not only neglect of patterns and common design approaches, but also their excessive use complicates the development, expansion, maintenance and testing of software. Originality. The extent and consequences of using the design templates, the benefits and examples of using the patterns and approaches in the design of cross-platform applications were determined. For the first time, the necessary degree of use of design templates for mobile applications of different sizes and purposes was analyzed. Practical value. The results of the work will allow the programmer to better understand the principles of designing the applications for iOS and Android operating systems, as well as the conditions of use of the known design templates. The information obtained can be used by teachers of higher education institutions as a means of providing practical examples and demonstrations for higher education students in performing practical work and programmers on real commercial projects.
Multi-Valued Automatic Cab Signalling System Based on the CDMA Technology
Authors: Honcharov K. V , Rybalka R. V
Published: September 2022

Purpose. The work is aimed at the development of principles for the construction of multi-valued automatic cab signalling system (ACS) using the wide-band pseudorandom signals. Methodology. An analysis of existing ACS systems and modern telecommunication technologies has been performed to achieve the stated purpose. The multi-valued automatic cab signalling system CDMA-ACS has been proposed. The mentioned system utilizes wide-band pseudo-noise signals to transmit commands. System parameters: frequency band – 155...395 Hz, pseudorandom codes – 16-bit Walsh codes, spectrum spreading factor – 16, source signal bandwidth – 15 Hz, carrier modulation – DBPSK (differential binary phase-shift keying), information rate – 15 bit/sec, code combination length – 4 bits, maximum amount of commands – 256, the duration of single command transmission – 0.27 sec. Functional diagrams of generator and receiver of the multi-valued automatic cab signalling system have been designed. It has been suggested to apply the correlation method to receive the ACS signals. Findings. To investigate the proposed CDMA-ACS system the simulation modelling has been accomplished in MATLAB in two stages: at the first stage, the CDMA-ACS system was investigated as disturbance-free; at the second stage – under the influence of powerful narrow-band disturbances (traction current harmonics). It has been found that the system shows high immunity to narrow-band harmonic disturbances. The most significant harmonics of the traction current related to the system are 250 Hz and 300 Hz, since they are the closest to the carrier frequency of 275 Hz. It has been determined that errors in decoding the ACS commands occur if the signal-to-noise ratio becomes lower than -8 dB. To reduce the influence of 250 Hz and 300 Hz, harmonics the application of additional band-reject filters was proposed. Originality. For the first time, the authors of this work carried out research on the multi-valued automatic cab signalling system with the use of wide-band pseudo-random Walsh codes. Practical value. Implementation of solutions being proposed allows improving the informativeness and interference immunity for the automatic cab signalling system, reducing the duration of command transmission from the railway track to the cab.
Spirituality and religiosity expressed by relatives of drug users: contributions to health care
Authors: Camatta Márcio Wagner , Medeiros Rafael Gil , Greve Isadora Helena , Calixto Alessandra Mendes , Nasi Cíntia , Souza Luiza Bohnen , Dutra Thauane da Cunha , Silva Luciano Barroso Oliveira da
Published: September 2022

ABSTRACT Objective: to analyze the expressions of spirituality and religiosity of relatives of people who abuse or are dependent on psychoactive substances. Methods: exploratory-descriptive research that dialogues with the spirituality and religiosity conceptual framework. It was performed at an outpatient clinic specialized in drug treatment in southern Brazil. Semi-structured interviews conducted with 11 relatives of patients undergoing treatment were analyzed by content analysis. Results: the findings were grouped into two categories: forms of expression of spirituality and religiosity practices; and their influence on relatives’ lives. Spirituality and religiosity almost always serve as a protective factor against feelings of anguish, conflicts and loneliness. Final considerations: despite the important role of expressions of spirituality and religiosity for many relatives, not everyone seems to benefit from them. Health professionals should consider these expressions in the construction of comprehensive health care for relatives.
Espiritualidade e religiosidade expressas por familiares de usuários de drogas: contribuições ao cuidado em saúde
Authors: Camatta Márcio Wagner , Medeiros Rafael Gil , Greve Isadora Helena , Calixto Alessandra Mendes , Nasi Cíntia , Souza Luiza Bohnen , Dutra Thauane da Cunha , Silva Luciano Barroso Oliveira da
Published: September 2022

RESUMO Objetivo: analisar as expressões da espiritualidade e da religiosidade de familiares de pessoas com uso abusivo ou dependente de substâncias psicoativas. Métodos: pesquisa exploratório-descritiva dialogando com o marco conceitual da espiritualidade e da religiosidade, realizada em ambulatório especializado no tratamento de drogas no sul do Brasil. Foram realizadas entrevistas semiestruturadas com 11 familiares de pacientes em tratamento, sendo analisadas pela análise de conteúdo. Resultados: foram agrupados em duas categorias: formas de expressão de práticas de espiritualidade e religiosidade e influência delas na vida dos familiares. A espiritualidade e religiosidade quase sempre servem como fator de proteção diante de sentimentos de angústia, conflitos e solidão. Considerações Finais: as expressões da espiritualidade e religiosidade têm papel importante para muitos familiares, no entanto nem todos parecem se beneficiar delas. Os profissionais de saúde devem considerar essas expressões na construção do cuidado integral em saúde dos familiares.
Primary care nurses’ learning styles in the light of David Kolb
Authors: Figueiredo Led Daianna Fernandes de , Silva Nair Chase da , Prado Marta Lenise do
Published: September 2022

ABSTRACT Objectives: to identify primary care nurses’ learning styles in the light of David Kolb’s Experiential Learning Theory. Methods: a descriptive and exploratory qualitative study. A semi-structured interview script was used for data collection and content analysis for data processing. Results: primary care nurses showed different learning styles: diverging, which combines active experimentation and reflective observation; assimilating, which combines reflective observation and abstract conceptualization; converging, which associates abstract conceptualization and concrete experience; and accommodating, which unites concrete experience and active experimentation. Final Considerations: learning through experience requires that knowledge be understood and transformed. Nurses learn in different ways, as they have different learning styles. Therefore, recognizing nurses’ learning styles is important to foster ongoing professional development and ensure safe nursing care.
Adoption of e-government: a study on the role of trust
Authors: Barbosa Johny Davyd Soares , Mota Flávio Perazzo Barbosa
Published: September 2022

Abstract This study analyzed the influence of trust and trustworthiness on the intention to adopt and use e-government services. A structural model was proposed, considering the relationship among Ability, Benevolence, Integrity, Perceived Risk, Trust of the Government, Trust of the Internet and Disposition to Trust. The model was tested through structural equation modeling (partial least square method). An online questionnaire was applied, including 36 items for all the constructs presented in the model, and measured with 11-point Likert scales. After the first round of analysis, an alternative model was proposed with a better fit. Results indicated that: 1) Ability, Benevolence, and Integrity, together, positively influence Trust of the Government; 2) Trust of the Government and Trust of the Internet positively influence Trust in e-Government; 3) Trust in e-Government negatively influences Perceived Risk and positively influences Intention to Use and; 5) Perceived Risk negatively influences Intention to Use. Considering the results of this research, as government agencies increase their expenditure to implement and maintain e-gov initiatives, they must recognize and deal with trust-related issues.
A literature review on the Economic and Social Council’s effectiveness and evaluation
Authors: von-Zeschau Juan Federico , Sánchez-Mosquera Marcial
Published: September 2022

Abstract Despite its widespread trajectory and global presence, studies on Economic and Social Councils (ESCs) are not frequent. Thus, this study aims to review the existing scientific literature on this institution to identify the main thematic nuclei, agreements, and discrepancies, and detect research gaps and outline future research lines. Based on the application of the PRISMA Protocol, three emerging thematic nuclei on ESCs have been detected: the factors that explain their creation; the factors that influence their effectiveness (and condition their success), and the criteria used to evaluate their effectiveness (related to these institutions’ success or failure). In short, this is the first qualitative synthesis of the international literature on ESCs, focusing on their effectiveness and evaluation. It offers elements for future intervention and studies on these institutions, especially those newly created.
Reformando a reforma regulatória: Lei Geral das Agências Independentes no Brasil
Authors: Ramalho Pedro Ivo Sebba , Lopes André Vaz
Published: September 2022

Resumo Este trabalho investiga os efeitos da nova Lei Geral das Agências Independentes no Brasil. Essa reforma da reforma regulatória buscou aumentar a transparência e a responsabilidade, fortalecer a avaliação ex ante e melhorar a tomada de decisões. O objetivo da pesquisa foi avaliar possíveis consequências organizacionais e institucionais dessas mudanças. A partir da coleta de dados com atores-chave nas 11 agências, foi feita uma comparação entre o período anterior à Lei e o cenário regulatório após um ano de sua vigência. Os resultados permitem uma visão panorâmica inédita dos instrumentos das agências, sob a inspiração da better regulation. Esse novo cenário pode impactar positivamente na credibilidade e confiança dessas estruturas. O estudo indica um avanço no modelo de governança regulatória brasileiro e abre espaço para futuras pesquisas.
Desenhando políticas e governança de dados para cidades inteligentes: ensaio teórico com o uso da IAD Framework para analisar políticas orientadas por dados
Authors: Filgueiras Fernando , Silva Barbara
Published: September 2022

Resumo Este artigo examina a política orientada por dados para cidades inteligentes e como o Institutional Analysis and Development Framework (IAD) se posiciona como uma ferramenta para analisar o design da governança de dados e de política de dados. A pesquisa realizada neste artigo sobre políticas baseadas em dados parte da premissa de que um projeto orientado por dados sustenta iniciativas de cidades inteligentes e incorpora dilemas de ação coletiva, impactando diretamente o desenho da política e da governança de dados. A motivação do artigo foi examinar dos componentes da estrutura IAD e componentes constitutivos da política de dados que orientam sua governança em sistemas complexos de transformação digital. O artigo é um ensaio que pretende levantar discussões sobre dados em cidades inteligentes e como o desenho de políticas compreende os conflitos de ação coletiva motivados pelo controle de dados.
FASCISMO: ONTEM E HOJE
Authors: Ricupero Bernardo
Published: September 2022

Resumo Por volta do final do século XX, o fascismo tinha praticamente deixado de ser um tema de apelo; o que se relaciona com o aparente triunfo do liberalismo, cuja queda do Muro de Berlim, em 1989, seria um marco. No entanto, a eleição recente de uma série de governos de extrema-direita, entre eles o de Jair Bolsonaro no Brasil, fez com que a questão recobrasse força. Apresentamos aqui os artigos que tratam do assunto, presentes no dossiê da Lua Nova: A variedade de temas, abrangências e perspectivas é notável, mas, em comum, eles não tratam “fascismo” como uma categoria rígida, e, sim, como um recurso para apreender a complexidade da realidade que o Brasil e o mundo enfrentam.
ESFERA PÚBLICA E DEMOCRACIA NO PENSAMENTO DE J. RAWLS, J. HABERMAS E C. MOUFFE: TEORIAS POLÍTICAS E DEMOCRÁTICAS EM DEBATE
Authors: Kritsch Raquel , Silva André Luiz da
Published: September 2022

Resumo Esfera pública e democracia são temas que se entrelaçam de vários modos em grande parte dos estudos normativos e democráticos dos últimos quarenta anos. Neste artigo, procuramos mostrar como essa relação tem sido pensada, a partir da teorização de pensadoras(es) de três importantes vertentes das teorias políticas e democráticas contemporâneas: (1) o liberalismo político de J. Rawls, cuja ideia de democracia vincula as noções de sociedade democrática, cultura política e amizade cívica; (2) a teoria crítica de J. Habermas, que propõe um modelo procedimental de democracia articulado às concepções de publicidade e solidariedade; e (3) o pluralismo agonístico radical de matriz pós-estruturalista de C. Mouffe, que postula um elo estreito entre democracia e uma compreensão agonística da sociedade. Por fim, (4) apontamos como diagnósticos atuais em torno da crise da democracia põem sob suspeita a disponibilidade e a permanência da esfera pública em suas diversas proposituras contemporâneas.
Avaliação dos Dados de Reanálise do Climatic Research Unit (CRU) e do 5th Generation of European Reanalisis (ERA5) no Monitoramento Probabilístico Padronizado da Seca
Authors: Santos Junior Edimar Pereira dos , Blain Gabriel Constantino , Xavier Ana Carolina Freitas
Published: September 2022

Resumo Este estudo objetivou avaliar o uso dos dados provenientes do Climatic Research Unit (CRU) e do 5th Generation of European ReAnalysis (ERA5) para o monitoramento da seca no estado de São Paulo por meio do índice de Precipitação Padronizado (SPI) e do índice de Precipitação e Evapotranspiração Padronizado (SPEI). Foram utilizados dados de precipitação mensal (P) para o cálculo do SPI e de temperatura do ar para estimar a evapotranspiração potencial (ETp) para o SPEI nas escalas de 1, 6 e 12 meses. Utilizou-se análises de ajuste paramétricos e concordância para avaliação e comparação com dados de estações de superfície. Os resultados indicam que os dados do CRU (P e ETp) apresentam baixa correlação com os dados das estações. Os dados do SPI e SPEI obtidos por meio do CRU e ERA5 apresentaram correlação ligeiramente maior no inverno na escala de tempo mensal. Um estudo de caso da crise hídrica de 2014 mostrou que os índices calculados a partir dos dados da CRU subestimaram o episódio da seca. Por outro lado, os índices calculados a partir dos dados ERA5 superestimaram a seca. Dessa forma, conclui-se que os dados de reanálise não podem ser utilizados diretamente para o monitoramento da seca.