bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of the implementation of a multi-scenario decision support system in the treatment of lung cancer
Authors: Artamonov Yevhen , Borisevich Viktoria , Golovach Iurii 
Published: November 2021

The object of the research is the decision support system in the treatment of lung cancer, the subject of the research – the use of a multi-scenario interface in the construction of decision support systems. One of the problem areas in software development is the need for multi-criteria adaptation of interfaces to users. This problem became especially acute after the introduction of quarantine when various automation systems began to develop rapidly, aimed at reducing direct contact between the customer and the service provider. If earlier software users were the more or less related group, now the difference began not only at the level of technical qualifications. Now, when developing software, more attention should be paid to physiological and psychological differences between users, features of hardware and software, environment, and other criteria. In the current situation, it turned out that in most cases automated systems are used by persons who are not interested in these systems but simply have to use them. One of the options for solving this problem is to create an adaptive universal interface. This research is aimed at analyzing methods for implementing multi-scenario decision support systems in the treatment of lung cancer. In the research, attention is paid to the following aspects: adaptive intelligent interface, architecture and structure of the adaptive intelligent interface, algorithms for the functioning of agents of adaptive system interfaces. In the research, the system was used by 500 participants for 30 days. The benchmark was the type of data display scenario selected at the start and end of the day. The research showed a gradual transition of users to scenarios of higher complexity, which involve the analysis of all available information. The tendency of reverse transitions decreases with time, and from the 18th day of using the system, the type of the selected interface changes in rare moments. These results proved the possibility of using automatically configurable interfaces, and bringing them to the final form will be achieved in 18–20 days of using the system.
Analysis of mechanical energy losses in marine diesels
Authors: Sagin Sergii , Madey Volodymyr , Stoliaryk Tymur 
Published: November 2021

The object of research is marine diesel engine oils, which provide lubrication, cooling and separation of friction surfaces. The subject of the research is the process of ensuring minimum mechanical losses in marine diesel engines. A problematic point in ensuring the lubrication of the cylinder-piston group and motion bearings is the lack of analytical and experimental studies that establish the relationship between the structural characteristics of engine oils and mechanical losses arising in marine internal combustion engines. The degree of orientational ordering of molecules and the thickness of the boundary lubricating layer are considered as the structural characteristics of engine oils. The determination of these values was carried out using the optical method based on the anisotropy of the light absorption coefficient by the boundary lubricant layer and the isotropic volume of the liquid (engine oil). The assessment of the level of mechanical losses arising in marine diesel engines was carried out according to an indirect indicator – the overshoot of the rotational speed and the time to reach the steady state of operation in the event of a change in load. It has been experimentally established that for engine oils used in marine internal combustion engines, the thickness of the boundary layer can be 15–17.5 µm. Motor oils, which are characterized by a higher ordering of molecules and a thickness of the boundary lubricant layer, ensure the flow of transient dynamic processes with less overshoot and a shorter transient time. This ensures the level of minimal mechanical losses occurring in marine diesel engines. The technology for determining the structural characteristics of engine oils can be used for any type and grade of oil (mineral or synthetic; high or low viscosity; used in both circulating and cylinder lubrication systems). The method of indirect assessment of mechanical losses of marine diesel engines can be used for any types of internal combustion engines of ships of sea and river transport (low-, medium- and high-speed; as well as performing the functions of both main and auxiliary engines).
Research of hydrodynamics of gas flow filtration through a stationary layer of crushed cotton stalks (wild cotton)
Authors: Kobeyeva Zagira , Khussanov Alisher , Atamanyuk Volodymyr , Hnativ Zoriana , Kaldybayeva Botagoz , Janabayev Dauren 
Published: November 2021

The object of this research is the hydrodynamics of the stationary layer of crushed cotton stalks. One of the most problematic areas is the influence of the physical and mechanical characteristics of the stationary layer of crushed cotton stalks on the hydrodynamics of filtration drying.
In the course of research, methods of physical and mathematical modeling are used. Sieve analysis is used to determine the granulometric composition of the polydisperse mixture of crushed cotton stalks.
The granulometric composition of the crushed stalks of cotton is determined and the graphical dependence of the percentage of each fraction is presented. The hydrodynamics of gas flow filtration through a stationary layer of crushed cotton stalks are experimentally investigated, and a graphical dependence of pressure losses on the fictitious rate of gas flow filtration is presented. It is found that pressure losses in the stationary layer of crushed cotton stalks are parabolic, which indicates the influence of both inertial and viscous components on pressure losses. The unknown coefficients of the modified Ergun equation are determined on the basis of experimental data. The correlation dependence between the experimental and theoretically calculated values is presented and it is shown that the maximum relative error is 9.6 %, which is quite acceptable for practical calculations. The results of experimental studies are also presented in the form of a graphical dependence of the Euler number on the Reynolds number. Based on the generalization of the experimental data, the calculated dependences are obtained in the form of dimensionless complexes, which describe the hydrodynamics of the gas flow filtration through a stationary layer of crushed cotton stalks. This makes it possible to predict the energy costs for creating a differential pressure, with an accuracy sufficient for practical calculations. The ratio of the experimental values of pressure losses to the theoretically calculated ones, depending on the Reynolds number, is graphically presented. It is shown that the maximum relative error does not exceed 8 %. The proposed generalizations of experimental data will make it possible to determine the energy consumption for creating a pressure drop at the design stage of the drying equipment, as well as to calculate the optimal process parameters and predict its economic feasibility.
Investigation of the physico-chemical parameters of the «Gelamil» series starches in the technology of mashed soups
Authors: Andrieieva Svitlana , Pyvovarov Yevgen 
Published: November 2021

The object of research is the technologies for the production of puree soups using modified starches of the «Gelamil» series. One of the main requirements for the quality of the technology of puree soups is the creation of a fluid, uniform, finely ground texture, which plays a special role in the organoleptic characteristics of this type of product. The texture of the product can be adjusted by adding liquid boiling modified starches. Starches of the «Gelamil» series are represented by potato starch with a reduced viscosity and are characterized as air-flowing gelling potato starch, that is, starch, the solution of which gives a low viscosity at high temperatures, and when solidified – a dense gel.
Hydrodynamic changes in the parameters of starch paste based on starches of the «Gelamil» series, depending on the temperature and type of starch, have been established. It was determined that starch paste based on starches of the «Gelamil» series, in comparison with native potato starch, have a low temperature of maximum viscosity from 47±2 °C to 57±2 °C, and thus form a paste with a viscous-flowing texture. The effective viscosity of starch paste was investigated depending on the starch content. It has been experimentally established that regulation of the starch content makes it possible to create starch paste according to different textural properties. For viscous-thinned dispersions, the starch concentration is from 1.0 to 3.0 %. For viscous-flowing dispersions having a long texture, the starch concentration is 3.5 to 5.0 %. For viscous-flowing dispersions having a short texture, the starch concentration is 5.5 to 7.0 %. For the content of native potato starch in the system of more than 5.0 %, a dense paste with a short texture is formed. It was found that for a starch paste based on starches of the «Gelamil» series, the separation of the liquid phase occurs due to 2:00 in an insignificant amount. A lot of components and model systems based on vegetable, legume purees and starch paste have been investigated. It has been determined that, depending on the type of vegetable and legume raw materials, the use of starches of the «Gelamil» series of different types and concentrations depends.
Improvement of the method for producing confitures from fruit raw materials
Authors: Zagorulko Aleksey , Cherevko Oleksander , Zahorulko Andrii , Yancheva Marіna , Bondar Mariana , Dudnyk Svеtlana 
Published: November 2021

The object of research is the method of production of comfiture from fruit and vegetable raw materials. The production of comfiture using traditional technologies is characterized by the loss of physiologically functional ingredients of raw materials. Such losses can reach up to 60 % of the initial amount, depending on the temperature regime and the duration of heat treatment. A negative factor in the storage of ready-made comfitures is sugar crystallization. Equipment for the implementation of traditional processes of processing fruits and vegetables is characterized by high productivity, low efficiency and operational difficulties.
Boiling in the traditional way is carried out at high-temperature conditions, which leads to a decrease in the content of functionally physiological ingredients and the nutritional value of the resulting comfitures. In the production of comfiture on the basis of fruit and vegetable raw materials, the following recipe ratio of components was used: apple – 60 %; Jerusalem artichoke – 25 %; cornelian cherry – 15 %. The improved method is characterized by gentle heat exchange operations, in particular: drying is carried out in an infrared dryer at a temperature of 40–50 °C to a dry matter content of 30–40 %. And also by further boiling of the mass in a vacuum evaporator based on a flexible film resistive radiating electric heater (FFRREH) at 50–60 °C. The use of inverted syrup in the recipe during boiling prevents sugar crystallization during storage of the finished product. Comparative analysis of the heating kinetics of comfiture from fruit and vegetable raw materials confirms the reduction in the duration of reaching the stationary mode (55 °C) when using a vacuum evaporator based on FFRREH by 1.6 times, compared with an analog apparatus. Such a hardware-constructive solution will ensure a decrease in the consumption of energy resources with a simultaneous increase in the quality characteristics of products.
Increasing the resource of agricultural machines
Authors: Dudnikov Anatolii , Dudnikov Ihor , Dudnyk Volodymyr , Mykhailichnko Vladyslav , Burlaka Oleksii , Kanivets Oleksander 
Published: November 2021

The object of research is the technological process of increasing the service life of pointed cultivator shares of tillage machines through the use of a progressive method of vibration hardening. One of the most problematic areas is the inadequate study of the investigated technological process of restoring the working bodies of agricultural machines. In order to gain a deeper understanding of the process of vibration processing of the material of these machine parts during their restoration, it is necessary to conduct further experimental studies.
In the course of the study, it has been found that the use of vibration deformation of the surface layer of the material of parts contributes to an increase in their resource. The optimal parameters of vibration hardening of the cutting elements of the cultivator shares of tillage machines have been determined, which makes it possible to increase their durability. The main parameters of vibration hardening are revealed: the vibration amplitude of the processing tool is 0.75 mm; vibration frequency – 1400 min–1; hardening time – 30 s.
As a research result, the assessment of the change in linear wear along the width of the cutting element of the cultivator duckfoot of tillage machines was carried out. In cultivators with tines restored by welding angle plates made of 45 steel (GOST 1050-2013, GB 699-88), sormite surfacing and vibration hardening, the linear wear rate by weight of cutting elements is 35–43 % less than in new tines. A study of changes in the wear of the cutting edge of cultivator shares was carried out, which, when restored by welding corner plates made of steel 45 (GOST 1050-2013, GB 699-88), surfacing with sormite and vibration hardening, is 1.57–1.68 times less than in new shares.
In comparison with existing technologies, the developed technology provides a reduction in the wear of cutting elements by 10–17 %, in comparison with new ones made of 65G steel (GOST 14959-2016, GB 1222). The coefficient of technical utilization of the cultivator with tines restored according to the developed technology, in comparison with the new ones, is 1.07 times higher.
Determination of commodity characteristics of emulsion based on low-methoxylated pectin for dishes of the «Eat Healthy» system in the restaurant service
Authors: Nikitchina Tatiana , Manoli Tatiana , Lebedenko Tetiana , Kozhevnikova Viktoriia 
Published: November 2021

The object of research is emulsions based on low-methoxylated apple pectin for dishes of the «Eat Healthy» system in the restaurant industry. The subject of the research is the commodity characteristics of emulsions for dishes of the «Eat Healthy» system. In the course of the study, methods were used to determine commodity characteristics based on sensory and physicochemical analysis. The proposed ingredient composition of emulsions based on low-methoxylated apple pectin makes it possible to form not only high consumer qualities, but also to provide the target product with functional health properties. The sorption activity of pectin makes it possible to bind and remove heavy metals, radionuclides from the body; removal of strontium isotopes has a high activity. As a highly hydrophilic, biocompatible biopolymer of plant origin, it provides a high viscosity of the structure at low concentrations, has a pronounced neutral, pleasant sour taste. Low-methoxylated apple pectin is one of the most common hydrocolloids, which is used in the technology of products with therapeutic, prophylactic, sorption, bactericidal properties. In addition, low-methoxylated pectin substances are a harmless and economical material, and can be considered as an alternative to antibiotics and synthetic preservatives to prevent bacterial spoilage and extend the shelf life of health food for public catering with high consumer properties. The influence of the technological properties of low-methoxylated pectin in the formation of commodity characteristics for food products based on emulsions in healthy food products of restaurant establishments of different styles and concepts has been determined. Samples of food emulsions were studied using different amounts of low-methoxylated pectin as a stabilizer to obtain a sedimentation-stable emulsion system. The use of low-methoxylated apple pectin in the composition of food emulsions increases the aggregate stability of the product, functional and merchandising characteristics. On the basis of a complex quality indicator, the optimal parameters of the emulsion formulation were determined. High-quality consumer characteristics are ensured due to the size of uronic particles up to 0.78–0.81 μm in size.
Influence of the firing temperature on the dielectric properties of ceramics based on barium titanate
Authors: Lisachuk Georgiy , Kryvobok Ruslan , Zakharov Artem , Voloshchuk Valentyna , Maistat Mykyta , Hlinskyi Dmytro , Kolovorotnyi Bohdan 
Published: November 2021

The object of the research is the firing temperature of ceramic materials based on barium titanate. In laboratory conditions, barium titanate was synthesized from raw materials of barium carbonate and titanium dioxide using ceramic technology, taking into account the stoichiometric composition of the compound. In order to study the effect of the firing temperature on the properties of the ceramic material, three temperatures were selected: 1270, 1300, and 1350 °C. The physical properties of the samples (imaginary density, water absorption, open porosity) were determined by the method of hydrostatic weighing in water. The samples were saturated with water after their preliminary evacuation. The dielectric characteristics of the obtained materials were measured on an E7-8CLR automated device (Ukraine) at a frequency of 1 kHz. The structural and morphological features of ceramics based on synthesized barium titanate were investigated by direct scanning electron microscopy and X-ray phase analysis. On the basis of the complex of studies carried out, the technological parameters of the production of ceramics were selected. Thus, the duration of grinding at the first and second stages is 10 and 30 minutes; moisture content of the press powder – 8 %; pressing pressure – 20 MPa; temperature of the first firing – 1000 °С; temperature of the second firing – 1350 °C. The regularity of the change in the dielectric constant on the firing temperature of ceramics based on barium titanate was established. The investigated samples, obtained according to the given technological regime, are characterized by the following indicators: dielectric constant – 259.9; open porosity – 0.02 %; water absorption – 0.01 %; imaginary density – 5.45 g/cm3. The resulting material can be used to create composite ceramic materials that protect biological and technical objects from the effects of electromagnetic radiation, and can also be used to create new functional materials for space, aerospace, electronic engineering and medicine.
Emergency Action Planning in School-Based Athletics: A Systematic Review
Authors: Hedberg Riley , Messamore William , Poppe Tanner , Tarakemeh Armin , Burkholder Rick , Carter Trent , Vopat Bryan , Darche JP 
Published: November 2021

Introduction. A significant number of preventable catastrophic injuries occur in secondary school athletics. Compliance to Emergency Action Plan (EAP) recommendations is not well documented. The purpose of this systematic review was to identify compliance to EAP recommendations, access to an athletic trainer (AT) and automated external defibrillator (AED), and current legislative mandates in school-based athletics.
Methods. Electronic databases were searched to identify articles that met criteria for inclusion. Studies in English that focused on adoption, implementation, or compliance with EAPs or other national guidelines pertaining to athlete health were eligible for inclusion. Quality and validity were examined in each article and data were grouped based on outcome measures.
Results. Of 12,906 studies, 21 met the criteria for inclusion and full text review. Nine studies demonstrated EAP adoption rates ranging from 55% - 100%. Five studies found that EAPs were rehearsed and reviewed annually in 18.2% - 91.6% of schools that have an EAP. At total of 9.9% of schools were compliant with all 12 National Athletic Trainers Association (NATA) EAP guidelines. A total of 2.5% - 27.5% of schools followed NATA exertional heat illness guidelines and 50% - 81% of schools had access to an Athletic Trainer. In addition, 61% - 94.4% of schools had an AED available at their athletic venues. Four of 51 state high school athletic association member schools were required to meet best practice standards for EAP implementation, 7 of 51 for AED access, 8 of 51 for heat acclimation, and 3 of 51 for concussion management.
Conclusions. There was a wide range of EAP adoption and a low rate of compliance to EAP guidelines in U.S. schools. Barriers to EAP adoption and compliance were not well documented and additional research should aim to identify impeding and facilitating factors.
Treatment of Cardiac Surgical Wounds with Silver Dressings
Authors: Elver Ashlie , Wirtz Katy , Hu Jinxiang , Daon Emmanuel 
Published: November 2021

Introduction. Mediastinitis is a deadly surgical site infection (SSI) after cardiac surgery. Although rare, mortality is as high as 47%. Best practices for infection prevention to eliminate this deadly complication must be identified. Surgical dressings impregnated with silver have been shown to reduce SSIs in other surgical specialties. This aim of this study is to determine if the routine use of silver surgical dressings is beneficial to prevent mediastinitis after cardiac surgery.
Methods. A single-center retrospective study was performed on patients who underwent sternotomy from 2016 to 2018 at the University of Kansas Medical Center. Prior to June 2017, all cardiac surgical patients were treated with gauze surgical dressings and is designated Group A. The routine use of silver-impregnated surgical dressings was implemented in June 2017, patients after this change in practice are designated Group B. Patient characteristics and rates of deep and superficial sternal wound infections (SWI) were compared.
Results. There were 464 patients in Group A and 505 in Group B. There were seven SWIs in Group A (7/464, 1.5%) and five in Group B (5/505, 1%; p = 0.57). Of these, there was one deep SWI per group (p = 0.61) and six superficial SWIs in Group A compared to four in Group B (p = 0.74). Severe COPD was higher in Group A (p = 0.04) and peak glucose was higher in Group B (p = 0.02).
Conclusions.The analysis conferred no benefit with silver-impregnated surgical dressings to prevent mediastinitis. Choice of gauze surgical dressings may be preferable to reduce cost.
A Disclosure About Death Disclosure: Variability in Circulatory Death Determination
Authors: Robinson Christopher , Hunt Suzanne , Gronseth Gary , Hocker Sara , Wijdicks Eelco , Rabinstein Alejandro , Braksick Sherri 
Published: November 2021

Introduction. Circulatory-respiratory death declaration is a common duty of physicians, but little is known about the amount of education and physician practice patterns in completing this examination.
Methods. We conducted an online survey of physicians evaluating the rate of formal training and specific examination techniques used in the pronouncement of circulatory-respiratory death. Data, including level of practice, training received in formal death declaration, and examination components were collected.
Results. Respondents were attending physicians (52.4%), residents (30.2%), fellows (10.7%), and interns (6.7%). The majority of respondents indicated they had received no formal training in death pronouncement, however, most reported self-perceived competence. When comparing examination components used by our cohort, 95 different examination combinations were used for death pronouncement.
Conclusions. Formal training in death pronouncement is uncommon and clinical practice varies. Implementation of formal training and standardization of the examination are necessary to improve physician competence and reliability in death declarations.