bluuebunny/crossref_metadata_2025 huggingface dataset:
Determining forces arising during the passage of cotton fiber between the fixed knife and working drum of the roller gin
Authors: Veliev Fazil
Published: March 2023

The object of this study is a roller gin. Roller gins are installed in the gin shops of cotton factories and their purpose is to mechanically separate cotton fiber from seeds in fine-fiber varieties of cotton. The criteria for the technological evaluation of roller gin are the sum of defects and fiber contamination after ginning, the cleansing effect of gin on weeds, damage to seeds, and fiber tow effects.
Existing methods do not fully reveal all the reserves of increasing the productivity of the machine, improving the design of the main working bodies of the roller gin, ensuring the effective operation of the machine, and preserving the natural qualities of fiber and seeds.
The determination of the force on the surface of the drum during the ginning process is of great practical interest for designing main working bodies of roller gins.
The efficiency and quality of the processed product depend on the interaction of the working drum and knife with the breaking organ in the process of fiber separation. The design of the drum and knife, their kinematic parameters, the stability of technological wiring largely determine both the performance of the gin and the quality of the fiber and seeds.
Theoretical studies have been conducted to determine the factors that affect the performance of roller gin. Based on the results obtained, it is recommended to change the most important structural parameters of the machine.
The obtained analytical expressions for the specific pressure and specific friction forces applied from the side of the drum surface to the processed mass of raw materials make it possible to conclude that when the load from the breaking body increases during the lower rebound, the process of grasping, dragging, and holding the fibers between the working drum and the fixed knife worsens
Using the gold bullion slag from Indonesia as lithium resources with HCL leaching method
Authors: Natasha Nadia , Rabbani Ghina , Sofyan Nofrijon , Soedarsono Johny , Prasetyo Agus , Maksum Ahmad , Riastuti Rini , Nuriskasari Isnanda
Published: March 2023

Primary resources are typically used in lithium extraction. Unfortunately, it impacts the dependency on the availability of primary resources to fulfill the lithium demand. Therefore, the use of secondary resources can be an alternative to using lithium resources. Gold bullion slag is an example of a potential secondary resource used as a lithium source because it contains 0.009 % lithium. This research aims at increasing lithium recovery from the gold bullion slag by studying the effects of various variables to enhance lithium recovery. Lithium extraction was carried out via HCl leaching process with concentrations of 0.5, 1.0, 1.5, and 2.0 M at 25, 40, 55, and 70 °C for 15, 30, 60, and 120 minutes. Inductively coupled plasma-optical emission spectrometry (ICP-OES) was used to examine lithium level, whereas scanning electron microscope equipped with energy dispersive X-ray spectroscopy (SEM-EDX) was used to look over the morphology. The significance of the recovery value was analyzed statistically using analysis of variance (ANOVA). The optimum variables to reach 98 % as the highest lithium recovery percentage are 1 M HCl at 55 °C for 60 minutes. ANOVA results on the acid concentration significance of the recovery value show that the p-value (0.001) is smaller than the alpha value (0.005). While, ANOVA results on the temperature and time significance of the recovery value show that the p-value (0.894) is greater than the alpha value (0.005) and p-value (0.9986) is greater than the alpha value (0.005), respectively. Analysis showed that variation in HCl concentration affected the lithium recovery value; however, temperature and time of leaching had an insignificant effect on lithium recovery. These data show that slag can be used as alternative resources to produce the lithium
Condensation heat removal due to the combined impact of natural convection and radiative cooling
Authors: Tsoy Alexandr , Granovskiy Alexandr , Nurakhmetov Baurzhan , Koretskiy Dmitriy , Tsoy-Davis Diana , Veselskiy Nikita
Published: March 2023

The work examines the heat exchange characteristics of a condenser in which heat removal of the refrigerant condensation occurs due to natural convection and radiation cooling. The heat exchanger is designed to reduce energy costs for the removal of condensation heat. Unlike traditional air cooling condensers, it uses radiation cooling, a method of heat removal based on its transmission in the form of infrared radiation through the planet’s atmosphere into the surrounding outer space. A method for calculating the thickness of the radiating plate has been developed. To minimize material consumption and cost, the distance between the tubes is reduced to 40 mm, and the thickness of the aluminum radiating plate is reduced to 0.32 mm. The inner diameter of the coolant channels is 1 mm.
For the experimental study of the condenser, an experimental stand working on R134a refrigerant was developed. Theoretical and experimental studies of heat transfer have been carried out. The heat transfer coefficient of the heat exchanger, reduced to the area of the radiating surface, was from 10.3±1.36 to 18.7±2.47 W·m–2·°C–1, when the condensation temperature was 12.8...21.9 °С higher than the temperature of atmospheric air. The operability of the condenser is shown both during the day and at night, in the presence of precipitation in the form of rain and snow, and a high level of cloudiness.
The material capacity and filling of the refrigerant in the condenser are comparable to the characteristics of air-cooled condensers with forced air circulation. At the same time, it does not consume electricity. It can be used in stationary refrigeration systems (in data processing centers, commercial refrigeration equipment, air conditioners) to increase their energy efficiency
Development of the matched filtration of a blurred digital image using its typical form
Authors: Khlamov Sergii , Savanevych Vadym , Vlasenko Vladimir , Briukhovetskyi Oleksandr , Trunova Tetiana , Levykin Ihor , Shvedun Viktoriia , Tabakova Iryna
Published: March 2023

The appearance of "blurred" digital images is a consequence of the violation of the immobility of the camera during the shooting of the objects under study. To this end, a procedure was devised for matched filtering of the blurred digital image of the object using its typical image form in a series of frames.
This procedure is based on the automated formation of a typical form of a digital image, as well as on the choice of special parameters for the transfer function of the matched filter. Adapting the procedure specifically to the typical form makes it possible to perform a more accurate assessment of the required parameters of the blurred digital image compared to the analytically set profile.
The formation of a typical form makes it possible to take into account the features of the very formation of the blurred image on each frame of the original series. Based on this, a more accurate assessment of the initial approximation of the parameters of all Gaussians of the object image is performed. In practice, matched filtering makes it possible to highlight blurred images of objects against the background of substrate noise. Also, using the matched filtering procedure makes it possible to improve the segmentation of images of reference objects and reduce the number of false detections.
The devised procedure for the matched filtering of a blurred digital image using its typical form has been tested in practice as part of the research in the framework of the CoLiTec project. It was implemented in the intraframe processing unit of the Lemur software for the automated detection of new and tracking of known objects. Owing to the use of Lemur software and the proposed computational procedure introduced into it, more than 700,000 measurements of various objects under study were successfully processed and identified
Implementation peat soil adsorbent & variation of filter for reduce emission improvement from motor vehicle
Authors: Ghofur Abdul , Syamsuri Syamsuri , Mursadin Aqli , Nugroho Agung , Legowo Agung Cahyo
Published: March 2023

The use of fossil fuels in transportation equipment, especially motorized vehicles, will have an extraordinary effect on air pollution. Therefore, air pollution becomes very important problem today. The amount of percentage of air pollution from transportation sources in Indonesia is 70.5 % CO, 18.34 % HC, 8.89 % NOx, 0.88 % SOx, and 1.33 % particulate matter. Given the danger of exhaust emissions, especially carbon monoxide which can cause death for humans who inhale it, therefore efforts are needed to control air pollution from motorized vehicles. There are several methods that can be used, one of which is to use adsorbents. Activated carbon can be used as an adsorbent. One alternative that can be applied as an adsorbent is peat soil-activated carbon which is abundant and easy to make as an adsorbent. By utilizing the abundant peat-soil which is a great potential area of Banjarmasin, South Kalimantan.
In this experimental study; model l has a diameter of 20 mm, model 2 has an outside diameter of 20 mm and an inside diameter of 10 mm, and model 3 is without adsorbent. The length of this model is the same. Testing with a 2005 Honda Kharisma motor vehicle with an engine speed of 1000, 2000, and 3000 rpm. CO and HC emission tests using a gas analyzer were carried out. Testing was also carried out using a dyno test to determine the engine performance of a motorcycle that was installed with an adsorbent on the exhaust gas. The results showed that peat soil adsorbents with perforated circle designs can reduce CO gas emissions by 55 % compared to the others. Besides that, the use of peat soil adsorbents with hollow circle designs can also reduce HC gas emissions by 3.51 %. The results of the engine performance test showed that there was no significant effect of using this adsorbent on torque and power.
In conclusion, peat soil adsorbents used to reduce exhaust emissions in motorized vehicles can be applied
Development of Bi-hexagonal hybrid crash box subjected to axial loading for enhancement of crashworthiness
Authors: Choiron Moch Agus , Wakhidah Delia Hani , Nurchajat Nurchajat
Published: March 2023

Crash box design had been developed to increase crashwortiness performance. The crash box cross section is one important parameter to increase the energy absorption as crashwortiness performance. In the previous study, hexagonal cross section provide the higher energy absorption than other cross section. One of strategy to increase cross section is using two cross section put together in one component of crash box design. Bi-tubular crash box shows higher energy absorption with easy manufacture opportunity. In other study, hybrid crash box is investigated to reduce crash box mass. In this study, development of bi-hexagonal hybrid crash box subjected to axial loading to enhance crashworthiness were investigated. Analysis of crash box design is developed by using computer simulation with ANSYS Workbench 19.2. The crash box materials used are Aluminum Alloy and carbon-epoxy woven. The material modeling in the crash box is assumed as deformable body while the impactor is a rigid body. The axial loading is modelled by setting impactor impact the crash box with a speed of 7.67 m/s. Fixed support is set on the bottom of crash box. Nine of frontal test models were simulated for the bi-hexagonal hybrid crash box with different layups orientation angle and composite hexagonal tube diameter. Energy absorption and deformation patterns were observed. The results indicated that the highest energy absorption and specific energy absorption is occured on the A60 model with layups orientation angle of [0/60/0/60] and composite hexagonal tube diameter of 41 mm are 3693.8 J and 19.121 kJ/kg. The deformation pattern in the aluminum part is diamond mode, while in the composite part, the deformation pattern produce transverse shearing, lamina bending, brittle fracturing and local buckling mode
Forming an elliptical directional diagram of the sectoral horn antenna for flow irradiation of sugar beet seeds by electromagnetic field
Authors: Kosulina Natalia , Sorokin Maksym , Handola Yuri , Kosulin Stanislav , Korshunov Kostiantyn
Published: March 2023

The object of research is the process that forms an elliptical directional diagram of the H-sector horn antenna for flow irradiation of seeds with the electromagnetic field.
The emitter of electromagnetic energy is presented as one of the main elements of installations for irradiating seeds with an electromagnetic field before sowing. This parameter was investigated by taking into account the values of the biotropic parameters of the low-energy electromagnetic field under the conditions of flow processing.
This paper reports a study into the parameters of the H-sector horn emitter for irradiation of sugar beet seeds with a low-energy electromagnetic field at a frequency of 73...75 GHz in continuous flow. Thus, one should use the H-sectoral horn emitter with the following parameters: aperture width aa=20 mm; horn length RH=35 mm; b=1.8 mm. It is determined that in order to irradiate sugar beet seeds on the conveyor plane with a power flow density of P=100 μW/cm2, it is necessary to place two horns 1200 mm above the conveyor at a distance of 2540 mm from each other. It was checked that the treatment of sugar beet seeds with electromagnetic radiation in a continuous flow with a capacity of 300 kg/h is possible with a power of up to 2 W supplied to two horn antennas; the speed of the conveyor is 15 cm/s.
The parameters of the sectoral horn for an elliptical directional diagram were studied by dividing the main task into internal and external.
According to the results of the research, it is possible to build a base of geometric presets for adjusting installations for different types of seeds, the desired performance, the structural features of installations, as well as existing emitters
Approach to the synthesis of an aperiodic robust automatic control system based on the gradient-speed method of Lyapunov vector functions
Authors: Beisenbi Мamyrbek , Kaliyeva Samal
Published: March 2023

One of the actual problems for the theory and practice of control of dynamic objects is the development of methods for research and synthesis of control systems of multidimensional objects.
The paper proposes a universal approach to construct Lyapunov vector functions directly from the equation of state of control system and a new gradient-speed method of Lyapunov vector functions to study aperiodic robust stability of linear control system with m inputs and n outputs.
The study of aperiodic robust stability of automatic control systems is based on the construction of Lyapunov vector functions and gradient-speed dynamic control systems.
The basic statements of Lyapunov's theorem about asymptotic stability and notions of stability of dynamic systems are used. The representation of control systems as gradient systems and Lyapunov functions as potential functions of gradient systems from the catastrophe theory allow to construct the full-time derivative of Lyapunov vector functions always as a sign-negative function equal to the scalar product of the velocity vector on the gradient vector. The conditions of aperiodic robust stability are obtained as a system of inequalities on the uncertain parameters of the automatic control system, which are a condition for the existence of the Lyapunov vector-function. 
A numerical example of synthesis of aperiodic robustness of a multidimensional control object is given. The example shows the main stages of the developed synthesis method, the study of the system stability at different values of the coefficients k, confirming the consistency of the proposed method. Transients in the system satisfy all requirements
Devising a method for balancing the load on a territorially distributed foggy environment
Authors: Kuchuk Nina , Mozhaiev Oleksandr , Semenov Serhii , Haichenko Andrii , Kuchuk Heorhii , Tiulieniev Serhii , Mozhaiev Mykhailo , Davydov Viacheslav , Brusakova Oksana , Gnusov Yurii
Published: March 2023

This study solves the task to redistribute the load on a geographically distributed foggy environment in order to achieve a load balance of virtual clusters. The necessity and possibility of developing a universal and at the same time scientifically based approach to load balancing has been determined. Object of study: the process of redistribution of load in a foggy environment between virtual, geographically distributed clusters. A load balancing method makes it possible to reduce delays and decrease the time for completing tasks on foggy nodes, which brings task processing closer to real time. To solve the task, a mathematical model of the functioning of a separate cluster in a foggy environment has been built. As a result of modeling, the problem of finding the optimal distribution of tasks across the nodes of the virtual cluster was obtained. The limitations of the problem take into account the characteristics of the physical nodes of support for the virtual cluster. The process of distributing the additional load was also simulated through the graph representation of tasks entering virtual clusters. The task to devise a method for load transfer between virtual clusters within a foggy environment is solved using the proposed iterative algorithm for finding a suitable cluster and placing the load. The simulation results showed that the balance of the foggy environment when using the proposed method increases significantly provided the network load is small.  The scope of application of the results includes geographically distributed foggy systems, in particular the foggy layer of the industrial Internet of Things. A necessary practical condition for using the proposed results is the non-exceeding the specified limit of the total load on the foggy medium, usually 70 %
Development of a two-stage method for segmenting the color images of urban terrain acquired from space optic-electronic observation systems based on the ant algorithm and the hough algorithm
Authors: Khudov Hennadii , Makoveichuk Oleksandr , Khudov Vladyslav , Khizhnyak Irina , Khudov Rostyslav , Maliuha Volodymyr , Sukonko Serhii , Lunov Oleksii , Buhera Mykhailo , Kravets Taras
Published: March 2023

The object of this study is the high level of errors of the first and second kind in the segmentation of images of urbanized areas acquired from space optoelectronic surveillance systems.
The method of image segmentation of urbanized areas implies two stages and, unlike known ones:
– takes into account each channel of brightness of the color space of the original image;
– at the first stage, an ant algorithm is used;
– image segmentation at the first stage is reduced to the calculation of the objective function, the areas of movement of ants, and the concentration of pheromone on the routes of ant movement.
– at the second stage, the brightness and geometric shape of the elements of objects are taken into account;
– contours and geometric primitives are defined in the Hough parameter space;
– the objects of interest of the urbanized area in the space of the original image are determined.
An experimental study into the segmentation of images of urbanized terrain acquired from space optoelectronic observation systems was carried out based on the ant algorithm and the Hough algorithm.
The quality of image segmentation of the urbanized area was assessed. It was found that the error of the first kind when using the improved method of segmentation is reduced by 2.75 %. The error of the second kind is reduced by 3.91 % when using the improved method of segmentation. This reduction became possible due to the use of an improved method of segmenting the image of an urbanized area by the ant algorithm at the first stage. Compared to Canny's algorithm, the error of the first kind decreased by 8.9 %, and the error of the second kind decreased by 11.0 %.
Methods for segmenting images of urbanized areas acquired from space optoelectronic surveillance systems can be implemented in software and hardware systems of image processing
Optimization of the isolation of biologically active complexes from buds and shoots of birch and poplar buds for their further use in cosmeceutical compositions
Authors: Yanevich Alyona , Mokshin Dmitriy , Polyakov Vladilen
Published: March 2023

The aim is to optimize the isolation of biologically active birch and poplar complexes based on woodworking industry waste to study their biological activity to create cosmeceutical compositions that have cosmetic and pharmaceutical effects.

Materials and methods. The object of research is the vegetative organs of birch (buds and shoots) and poplar (buds). In the process of work, experimental studies were carried out on the extraction and separation of natural compounds, development of biological complexes of vegetative organs of birch and poplar, study of the chemical composition and standardization of biologically active complexes of birch and preparations based on them.

Results. The optimal methods for extracting natural complexes were determined. Created as a semi-industrial installation for producing biologically active complexes by barothermal method, combining two processes - high pressure and hydrodistillation. The optimal operating cycle and plant parameters were determined. The optimal solvents for the extraction of biologically active complexes from the vegetative organs of birch and poplar have been determined. Petroleum ether (33.60 %) extracted the most compounds from birch buds, in birch shoots - ethanol (8.34 %). Qualitative and quantitative indicators of biologically active complexes are determined, and projects for examining the obtained biologically active complexes are proposed. We determined the yield of essential oil depending on the time of collection of raw materials and determined that the largest amount of essential oil is contained in spring buds (0.21 % of dry raw materials) and shoots (0.08 %).

Conclusions. Biological complexes created from timber processing waste with high activity are the basis for the creation of cosmetic products. The created semi-industrial plant will provide the basis for creating new original products in industrial volumes.
Cetacean sightings from Mozambican waters, including the first records of Rough-toothed Dolphin Steno bredanensis and Fraser’s Dolphin Lagenodelphis hosei
Authors: Rollinson Dominic P.
Published: March 2023

Opportunistic cetacean sightings were made during a 79-day fishing trip through southern and central Mozambican waters. Notable  sightings included the first Mozambican records of Rough-toothed Dolphin Steno bredanensis and Fraser’s Dolphin Lagenodelphis hosei, although both species have been recorded from neighbouring South African and Tanzanian waters. A number of other rarely seen cetacean species, with few Mozambican records, were also recorded.
La boldenona, un anabolizante vacuno, ¿existe riesgo de dopaje positivo?
Authors: Enríquez Meza Rodrigo
Published: March 2023

En el presente escrito se trata de hacer una revisión sobre un tema de actualidad que está comprometiendo a varios de los deportistas colombianos que han dado doping positivo para boldenona y que aseguran haber ingerido carne de res en los días previos a la prueba del control antidoping, lo cual en el momento se encuentra en investigación puesto que es conocido que en Colombia está permitido el uso de este esteroide en el ganado vacuno hasta 30 días antes del sacrifcio del animal, lo que debe ser garantizado por los entes de control nacional.

Por lo tanto, en el escrito se contextualizará inicialmente que es y como actúa la boldenona; seguido a ello se trata las razones por las cuales se autoriza en Colombia el uso de la hormona en el ganado vacuno y fnalmente, la repercusión de la presencia de la misma en un control antidoping de los deportistas.
Impact of microbiota on breast cancer hormone therapy
Authors: Terrisse Safae , Zitvogel Laurence , Kroemer Guido
Published: March 2023

Recent observations indicate that the pathogenesis and prognosis of hormone-receptor breast cancer is not only dictated by the properties of the malignant cells but also by immune and microbial parameters. Thus, the immunosurveillance system retards the development of hormone-positive breast cancer and contributes to the therapeutic efficacy of es-trogen receptor antagonists and aromatase inhibitors. Moreover, the anticancer immune response is profoundly modulated by the local and intestinal microbiota, which influences cancer cell-intrinsic signaling pathways, affects the composition and function of the immune infiltrate present in the tumor microenvironment and modulates the metabolism of estrogens. Indeed, specific bacteria in the gut produce enzymes that affect the enterohepatic cycle of estrogen metabolites, convert estro-gens into androgens or generate estrogen-like molecules. The knowledge of these circuitries is in its infancy, calling for further in-depth analyses.
Cybersecurity culture in the public and private sector area in the Central European region
Authors:   Koszalin University of Technology, Górka Marek
Published: March 2023

Cyber security is a growing problem associated with everything a citizen or organisation does in cyberspace. The problem thus outlined fits into a multifaceted programme that can be addressed through cyber security management. The analysis in the article compares the level of cyber security awareness among the staff of public institutions and the private sector in four Central European countries, namely Poland, the Czech Republic, Slovakia and Hungary. Public institutions are by nature open, decentralised and rich in a wide range of data about the state, society, economy, economics and research and innovation. For this reason, they are often exposed to serious cyber threats. This study examines the relationship between cyber security culture and the urgent need for preventive action against possible cyber threats. The main thesis of the study is that an adequate understanding of cyber security culture and improved awareness among employees about digital threats is key to achieving cyber security growth. The research illustrates breaches in so-called digital hygiene, which are caused by a lack of knowledge, skills and errors in employee behaviour. Following a survey of staff employed in both public and private organisations, an identification of key cyber security risk factors is made. Increasing staff competencies can help improve cyber resilience.
Integracja narodów i partii agrarnych w Europie Środkowo-Wschodniej w myśli politycznej polskiego ruchu ludowego w końcowym okresie zaborów i dwudziestoleciu międzywojennym
Authors:   Uniwersytet Marii Curie-Skłodowskiej w Lublinie, Wichmanowski Marcin
Published: March 2023

The question of European integration in the political thought of the peasant movement in Central and Eastern Europe appeared many times since the second half of the 19th century. In the period of partitions, people searched for paths to freedom and independence. The ideas of creating multinational political organisms were to be means for obtaining a certain degree of subjectivity. Poles saw development opportunities in the federation within the Habsburg monarchy. On the other hand, the union of the peoples of the former Polish-Lithuanian Commonwealth, mainly Lithuanians, Belarusians and Ukrainians – there was an apparent chance joint struggle with the Russian invader. The geopolitics of the region, constructed in the result of the First World War, meant that the newly created Central European states found themselves between Germany and Russia – both of which were states with imperialist traditions. The question of the union of states, or mainly peasant parties in the political thought of the Polish and European peasant movements appeared several times, but in the 1930s it was rather an addition to the programs of these parties. Initially, the Poles sought an agreement mainly with neighbours facing similar threats. When the implementation of these plans failed, their programs contented with peaceful international cooperation based on the League of Nations.
Profesora Romana Wapińskiego refleksje odnośnie roli i zadań biografistyki historycznej
Authors: Wojdyło Witold
Published: March 2023

In the scientific work of Professor Roman Wapiński (1931–2008), a prominent place was occupied by historical biography. This stream of his writing includes among others biographies of three important figures of the Polish political scene in the first half of the twentieth century: Władysław Eugeniusz Sikorski, Roman Dmowski, Ignacy Jan Paderewski, numerous biographical notes published in the Polish Biographical Dictionary, monographs devoted to political awareness and generational groups in the Second Polish Republic, politicians of the Polish political scene in the twentieth century. The analysis of the content of the following article boils down to the statement, which takes the form of the main research thesis (Roman Wapiński identifies with it), that the cognitive values of this genre of historical writing require further scientific research, and go hand in hand with the recognition of: “its citizenship, together with the recognition of the usefulness of some of its varieties for studying the behaviour and fates of larger communities […], besides, it is probably not so rare that this is the only way to more widespread historical education”. The article is based on selected literature on the subject. The specificity of the issue in question and the articulation of the research problem naturally influenced the selection and nature of the research methods applied. The text uses elements of discourse analysis, text analysis, historical and diachronic methods. From among the applied research techniques, the most useful turned out to be the analysis of the testimonies of political thought, the essence of which is to draw conclusions on the basis of source materials collected and relating to the undertaken research problem.
Władysław Bieńkowski i jego idee w dwudziestoleciu międzywojennym
Authors: Kapica Bartłomiej
Published: March 2023

The paper describes the ideological evolution of Władysław Bieńkowski (1906–1991) in the interwar period – in the Polish People’s Republic, he was first a communist activist and then a dissident. The author reconstructs the process of radicalization of Bieńkowski as an intellectual who was not a member of the Communist Party of Poland, but who after the Second World War found himself among higher-ranking communist activists. The thesis of this paper is that the dichotomy between individual freedom and participation in the communist movement, which was characteristic of Bieńkowski in the period of the Polish People’s Republic, dates back to his prewar ideas. The paper also contributes to the discussion on the attitudes of the Polish intelligentsia towards communism.
Szkic do biografii ziemianina. Marian Kiniorski (1868–1943)
Authors: Wątor Adam
Published: March 2023

The article presents the life and public activity of Marian Kiniorski. He studied at the University of Agriculture in Dublany, the University of Berlin and the School of Political Sciences in Paris (until 1899). He was a modern landowner, striving for the industrialization of property, the use of new agricultural techniques and agricultural progress. He belonged to a number of societies and landowners’ organizations (including the president of the Central Agricultural Society). At the same time, he was an active political activist associated with the National Democracy (a member of the National League, then the Board of the National People’s Union and the authorities of the National Party). A member of the Russian State Duma, then a senator of the Republic of Poland, participated in debates on the land reform. Active journalist, author of specialist articles on agricultural and social topics. In 1930 he withdrew from public life, focusing on the farm. He died in Warsaw
Kim jestem? Meandry tożsamości narodowej na przykładzie losów etnicznego Polaka Ivana Iosifovicha Osińskiego
Authors: Kozłowska Urszula , Kozlova Oxana
Published: March 2023

Who am I? Meanders of National Identity on the Example of the Fate of an Ethnic Pole Ivan Iosifovich Osinsky. The article presents the profile of an ethnic Pole Ivan Iosifovich Osinskiy, professor at Buryatia State University. It presents the process of formation of his national identity, the influence of individual elements (family, local community, professional environment, among others) on its formation. Emphasising Osinski’s sense of national identification is based on the model of the triad of identity: inherited, acquired, presented.
Artificial intelligence to predict the need for mechanical ventilation in cases of severe COVID-19
Authors: Godoy Mariana Frizzo de , Chatkin José Miguel , Rodrigues Rosana Souza , Forte Gabriele Carra , Marchiori Edson , Gavenski Nathan , Barros Rodrigo Coelho , Hochhegger Bruno
Published: March 2023

Abstract Objective: To determinate the accuracy of computed tomography (CT) imaging assessed by deep neural networks for predicting the need for mechanical ventilation (MV) in patients hospitalized with severe acute respiratory syndrome due to coronavirus disease 2019 (COVID-19). Materials and Methods: This was a retrospective cohort study carried out at two hospitals in Brazil. We included CT scans from patients who were hospitalized due to severe acute respiratory syndrome and had COVID-19 confirmed by reverse transcriptionpolymerase chain reaction (RT-PCR). The training set consisted of chest CT examinations from 823 patients with COVID-19, of whom 93 required MV during hospitalization. We developed an artificial intelligence (AI) model based on convolutional neural networks. The performance of the AI model was evaluated by calculating its accuracy, sensitivity, specificity, and area under the receiver operating characteristic (ROC) curve. Results: For predicting the need for MV, the AI model had a sensitivity of 0.417 and a specificity of 0.860. The corresponding area under the ROC curve for the test set was 0.68. Conclusion: The high specificity of our AI model makes it able to reliably predict which patients will and will not need invasive ventilation. That makes this approach ideal for identifying high-risk patients and predicting the minimum number of ventilators and critical care beds that will be required.
Different irrigation and fertilization levels and mulching materials on the yield and quality of strawberry
Authors: Ayas Serhat
Published: March 2023

ABSTRACT The strawberry (Fragaria spp.), one of the most important berry fruit, is cultivated in many regions of Turkey. Considering its agricultural importance, the objective of this study was to determine the interactions of three important factors affecting the yield of strawberries. Measurements of the physical and quality properties of strawberry were carried out in the laboratories of Bursa Uludağ University. In the research, four different irrigation topics, three different fertigation and three different mulching topics (without mulch (M0), with PE black mulch material (M1), with PE transparent mulch matterial (M2) were selected. Drip irrigation method was preferred in order to apply water amounts at different irrigation and fertigation levels. In our study, the highest and lowest irrigation water amounts in both trial years were found to be 380-95 mm and 420-105 mm, respectively, while the highest and lowest actual evapotranspiration values were calculated as 440-220 mm and 465-280 mm, respectively. The maximum and minimum yield values of the study years were calculated as 5.05-18.70 t ha-1 and 1.20-8.7 t ha-1, respectively, from I100F100M1 and I25F50M0 treatments. However, when the reductions in yield and quality losses are evaluated together, despite the reductions in irrigation water and fertigation levels, I75 and F75 topics can be recommended. Also, in mulching treatments, black mulch material (M1) should be chosen over clear mulch material (M1) and no mulch (M0).
Gesso conformado sob pressão: os efeitos dos parâmetros de conformação sobre as propriedades físicas e mecânicas
Authors: Campos Vanessa Rodrigues , Carvalho Ricardo Fernandes , Dias Cleber Marcos Ribeiro
Published: March 2023

RESUMO A baixa resistência mecânica e a suscetibilidade à água restringem a aplicação do gesso de construção em elementos sem fins estruturais e em locais protegidos da umidade. Em contrapartida, a conformação sob pressão tem sido apontada como uma alternativa para se obter peças de gesso de elevado desempenho. No entanto, a influência de fatores de processamento e relacionados à mistura sobre as propriedades das pastas de gesso conformado sob pressão é pouco conhecida. Este artigo tem como objetivo investigar os efeitos da pressão (P), massa conformada (M) e relação água/gesso (X) nas propriedades físicas e mecânicas do gesso conformado sob pressão (GCP). Um projeto fatorial 2k foi utilizado para avaliar os efeitos destes fatores de conformação e das suas interações. Neste projeto, P variou de 5 a 15 MPa, M de 350 a 550 g e X de 0,18 a 0,22. A espessura (t), a porosidade (η), o módulo de elasticidade dinâmico (E), a resistência à tração na flexão (Rt) e a resistência à compressão (Rc) de corpos de prova prismáticos foram as propriedades analisadas. Os resultados mostraram que a pressão e a relação água/gesso tiveram efeitos significativos em todas as propriedades, exceto na espessura, e a massa conformada afetou de forma significante, apenas, a espessura dos corpos de prova. A conformação do gesso sob pressão mostrou-se ser uma técnica promissora para o desenvolvimento de pastas de elevado desempenho mecânico (E = 20,0 GPa, Rt= 12,6 MPa e Rc= 53,5 MPa) e baixa porosidade (η= 20,1%). Os resultados apontaram a necessidade do uso de um aditivo retardador para garantir a compactação do gesso antes do início da pega e melhorar o empacotamento dos cristais de di-hidrato. A técnica de conformação por prensagem mostrou-se propícia para o desenvolvimento de componentes pré-fabricados de gesso de alta resistência mecânica para uso na construção civil.
TRAINING OPTIMIZATION IN SOCCER PLAYERS WITH SPORTS INJURIES
Authors: Chen Li , Chen Wenlie
Published: March 2023

ABSTRACT Introduction: Strengthening the optimization of soccer skills training and strengthening the prevention of sports injuries are important research topics for soccer development in the post-injury rehabilitation phase. Functional training control has been empirically shown to be effective in accelerating rehabilitation. Objective: Investigate the situation of sports injuries in soccer and the effect of optimizing skill training on people with sports injuries in functional training for rehabilitation. Methods: During a 6-week experiment, the experimental group was inserted into the functional training mode, while the control group performed traditional training. The functional training was performed thrice a week for one hour per session. After 6 weeks, physiological and functional data were compared, classified, and analyzed. Results: The total FMS score of the experimental group increased from 13.61 to 17.30, while that of the control group ranged from 14.04 to 15.54. Conclusion: Selecting multiple training methods focused on different sports skills, focusing on balance, strength, and coordination, can optimize the sports skills of soccer players who have sports injuries. The researched protocol was shown to improve the competitive level of athletes and reduce the risk of future sports injuries. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF SCHOOL SOCCER TRAINING ON THE HEALTH AND FITNESS OF OBESE CHILDREN
Authors: Wang Shaojie , Liu Baiqing , Liu Jingle
Published: March 2023

ABSTRACT Introduction Based on the representative data reflecting the level of physical development and athletic quality, such as the “National Physical Health Test for Students”, it is shown that the physical health status of adolescents and children in China is decreasing annually, and the trend of obesity is gradually increasing. Objective Analyze and study the effect of training on the physical fitness of obese children aged 12 to 14 through school soccer training. Methods The effect of school soccer training on the health and physical fitness of obese children aged 12-14 years was studied, and conclusions were drawn by the literature method, experimental method, mathematical statistical method, and logical analysis method. Forty-eight screened obese children were randomly assigned to the experimental and control groups, 24 in each group. The experimental group underwent 12 weeks of soccer training, and the control group underwent 12 weeks of no training control. The subjects’ body composition and flexibility quality indices were measured post-intervention. Results The visceral fat index, body fat rate, and muscle rate of boys and girls progressed expressively, with a significant difference (P <0.05). Muscle weight is also known as lean body weight, with an expressive increase in muscle tone. In comparison, the increase in fat weight and muscle ratio in boys was expressively higher than in girls. Conclusion Regular long-term school soccer training can increase mobility in obese children, increase physical flexibility, and help promote physical health and prevent injury. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
SOCCER SPORTS INJURIES AMONG CAMPUS TEENAGERS
Authors: Wang Nannan , Yang Jin , Zheng Yifei
Published: March 2023

ABSTRACT Introduction College soccer is a major priority for the Chinese sports department. Among the most relevant issues is the search for solutions to prevent sports injuries among young college soccer players in the development process. Objective Investigate the causes and characteristics of sports injuries among young college soccer players, aiming to develop scientific measures for prevention and control. Methods A total of 304 young people from primary and secondary schools in one city were selected as volunteers for the research, and the causes and characteristics of sports injuries among these players were analyzed using questionnaires, interviews with experts, and statistical-mathematical analysis. Results According to the characteristics of injury factors of soccer players at different learning stages, a good job should be done on preventing sports injuries of physiological, psychological, technological, training, and other aspects, to reduce the risk of sports injuries in young soccer players. Conclusion Fully understanding sports injury risk prevention, timely summarizing the experience and learnings, and doing a good job in sports injury prevention from the aspects of physiology, psychology, technology, training, and other aspects according to the characteristics of injury factors of soccer players at different school stages are desirable practices to reduce the risk of sports injury and improve the quality of school soccer training and competition for young college soccer players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
Many hands on this study: Development of a metonymy comprehension task
Authors: Siqueira Maity , Melo Tamara , Duarte Júnior Sergio , Baiocco Laura , Ferrari Caroline Girardi , Lopes Nichele
Published: March 2023

Metonymy is a pervasive linguistic/cognitive mechanism in everyday language. Still, studies assessing its comprehension are rare in the literature. Our goal is to present the elaboration of a verbal metonymy comprehension task in Brazilian Portuguese as well as test it using pilot studies. The task was based on the cognitive linguistics framework and psychometric guidelines were considered. The construction of the task considered psycholinguistic variables and included a conventionality task and an expert analysis. Three studies (N = 290, ages ranging 2 to 54 years old) were conducted until we reached a final version. The study resulted in a task composed of one practice item and six test items. Each item includes a sentence-stimulus and two questions (one open-ended and one closed-ended). Together, the items make up a raw score that represents metonymy comprehension. Data obtained from the pilot studies show that metonymy comprehension improves gradually with age and that there is a significant difference between items in both types of questions. This is in consonance with the literature, and thus points towards the instrument’s construct validity. The study results in a task that presents enough sensitivity to gauge comprehension of this phenomenon at different ages.
Recursos textuais para a construção de conhecimento classificativo - as taxonomias em manuais escolares de Ciências Naturais
Authors: Caels Fausto , Quaresma Ângela , Barbeiro Luís , Alexandre Marta Filipe
Published: March 2023

Este artigo incide sobre a construção linguística do conhecimento científico, no contexto de ensino-aprendizagem. Tem como objetivos traçar a estrutura organizacional dos textos inseridos em manuais escolares e identificar os recursos lexicais envolvidos na verbalização dos sistemas de classificação. O estudo é enquadrado pela Linguística Sistémico-Funcional (Halliday, 2014) e pelos Estudos de Género da Escola de Sydney (Martin & Rose, 2008). Metodologicamente, constituiu-se um corpus de 100 textos apresentados em manuais de Ciências Naturais (2.º e 3.º ciclos do Ensino Básico), usados em Portugal. Procedeu-se à identificação das etapas estruturais dos textos, segundo as etapas definidoras do género Relatório Classificativo, e caracterizou-se a etapa Sistema de Classificação, focando os elementos semânticos e sua realização lexicogramatical. Como resultado, verificam-se uma ausência significativa de etapas definidoras, a par da presença da etapa opcional Orientação, e o uso irregular dos elementos semânticos do Sistema de Classificação, cujas realizações lexicogramaticais nem sempre se inscrevem no domínio classificativo. Defende-se a necessidade da tarefa de explicitação aos estudantes das coordenadas contextuais e textuais dos géneros classificativos, para otimizar a compreensão e a produção de textos científicos.
Characterization of nonpathological intrascleral cartilage in the domestic sheep (Ovis aries)
Authors: Teodoro Tamires G.W. , Campos Maria Eduarda S.T. , Silva Laice A. , Watanabe Tatiane T.N. , Alves Carlos Eduardo F. , Laufer-Amorim Renée , Wouters Flademir , Wouters Angelica T.B.
Published: March 2023

ABSTRACT: Birds, cartilaginous and teleost fish, reptiles, and some amphibians have intrascleral cartilage and/or bone; however, these are rarely reported in therian mammals. This study aimed to investigate and characterize a nonpathological formation of cartilage in the posterior sclera of sheep macroscopically, histologically, and by immunohistochemical exam (IHC). Ninety eyes from 45 domestic sheep were collected, underwent gross examination, fixed in formalin, and embedded in paraffin for the microscopical assessment. Sections with histological shreds of cartilage were selected to perform IHC to confirm the presence of cartilage. Intrascleral cartilage was detected in 60 eyeballs (66.66%) from 37 sheep (82.22%). A slight whitish thickening was grossly seen in the posterior sclera. The histologic exam revealed a few scattered, isolated chondrocytes to larger aggregates of cartilaginous islands in the posterior sclera. Eighteen (30%) of 60 eyeballs revealed marked anti-collagen type II immunolabeling. The development of cartilaginous structures in the eyes is considered rare in mammalian animals. The high occurrence of intrascleral cartilage in the examined sheep eyes suggests that this finding corresponds to an anatomical component of sheep sclera, despite the age, breed, or body condition.