bluuebunny/crossref_metadata_2025 huggingface dataset:
Ação bactericida de isoaglutininas ABO em diferentes diluições de anticorpos anti-ABO
Authors: Gomes Naiara Merenciano , Bella Cruz Alexandre , Valcarenghi Daniela , Butzke de Souza Nicolli , Geraldo Alexandre
Published: January 2022

Tendo em vista o grande polimorfismo dos sistemas de grupos sanguíneos e que uma das hipóteses para explicá-los seja a co-evolução com patógenos, esta pesquisa teve como objetivo avaliar a ação bactericida in vitro dos anticorpos anti-ABO sobre a bactéria Escherichia coli. Foi observada diferença significativa no crescimento bacteriano (p<0,0001) nas comparações do Grupo O, Grupo A, Grupo B e Grupo AB, quando comparados ao controle positivo, demonstrando o efeito bactericida dos anticorpos anti-ABO. Não houve diferença significativa (p > 0,05) intergrupos sanguíneos O, A, B e AB. Apesar de não haver diferença estatística (p > 0,05) intergrupos sanguíneos O, A, B e AB, o grupo sanguíneo AB apresentou menor ação bactericida. A partir da ação bactericida dos anticorpos anti-ABO, estes podem ser utilizados no futuro como alternativas não farmacológicas no auxílio de quadros clínicos de sepse.
Cybersecurity technology for video surveillance systems based on the HIKVISION solution
Authors:   State University of Telecommunications, Kolisnyk D. R. , Lishchuk I. V.
Published: January 2022

The study and analysis of the problem of ensuring the protection of video surveillance systems, the essence of the tasks of their protection. The existing technologies of protection of video surveillance systems are analyzed. The technology of providing protection of video surveillance systems on the basis of the Hikvision solution is investigated. The methods and means of protection of the components of the video surveillance system, which are implemented by Hikvision, are determined. The main threats to IP video surveillance systems have been identified. Recommendations for cybersecurity specialists on the application of technology for protection of video surveillance systems at the enterprise have been developed.
Patch management and software updates based on the HCL Bigfix Patch solution
Authors:   State University of Telecommunications, Skryabin F. K. , Vyshnivskyi V. V.
Published: January 2022

The methods and means of managing software updates and patches on the example of HCL BigFix Patch solution are investigated in the work. The purpose, main functions and composition of the HCL BigFix Patch software package have been determined. Based on the research conducted in the work, a variant of the software update and patch management technology was developed on the example of the HCL BigFix Patch solution. Recommendations for the application of corporate information system software update and patch management technology have been developed.
A variant of implementation of the AES algorithm in RFID systems
Authors:   State University of Telecommunications, Seledtsov G. M. , Perepelytsya L. S.
Published: January 2022

This paper presents basic information about RFID systems and a brief analysis of the main cryptographic algorithms traditionally used in them. The main work was done on the development and hardware implementation of the AES encryption algorithm, which should theoretically help protect against most of the above attacks
Development of an ontological model of the distance learning system
Authors:   National Technical University of Ukraine Kyiv Polytechnic Institute, Mukhin V. Ye. , Bazaliy M. Yu. ,   National Technical University of Ukraine Kyiv Polytechnic Institute, Zavgorodnii V. V. ,   State University of Infrastructure and Technology, Zolotukhina O. A. ,   State University of Telecommunications, Ilyin O. Yu. ,   State University of Telecommunications
Published: January 2022

An ontological model of the distance learning system has been built, which captures and structures the knowledge common to this subject area. This allows it to be used repeatedly within the subject area as the basis of a single model of knowledge, which ensures logical consistency between the individual ontologies when combined. An ontology has been formed to build a single information space of the distance learning system. This single information space allows you to navigate the developed knowledge base. Requirements of semantic search and acquisition of new knowledge are realized by means of initial ontology and are transferred in the form of updating in uniform information space. Information hierarchies for designing an intellectual model of distance learning process using elements of the methodology of object-oriented approach are constructed. The application of the ontological approach is a very effective way to design an intellectual model of the distance learning process. Based on the theory of system analysis and synthesis of organizational management, as well as on methodologies for automating the design of information technology processes and systems, a method of creating a single information space for the implementation of operational management of higher education. An ontological method of modeling information systems based on multidimensional models is proposed for use. The tools of this method allow you to develop an infographic model of any information system that will fully reflect the pragmatics of the system under study, and thus eliminate the use of any additional methods for its creation.
Theoretical approach to solving the problem of detecting malicious processes based on the analysis of the states of the entity of the information system
Authors:   State University of Telecommunications, Haidur H. I. , Gakhov S. O.
Published: January 2022

Today information systems of organizations operate in conditions of vulnerabilities and their exploitation by hackers. This is evidenced by the reports of global companies on the analysis of information on threats, as well as proposals for the implementation of appropriate cybersecurity measures. Despite the measures taken to ensure the cybersecurity of these systems, the number of identified vulnerabilities is constantly increasing. One of the ways to solve this problem is to monitor the security status of the functional components of information systems during data processing and exchange. The reasons for the occurrence of malicious processes in the functioning of information systems of organizations have been established. The main reason for the presence of vulnerabilities is the properties of the functional components of this information system. The analysis of existing methods for detecting intrusions into information systems of organizations is carried out. The application of the discovery method based on the analysis of protocol states makes it possible to determine and monitor the state of network, transport and application protocols that have state concepts. A theoretical approach to solving the problem of detecting malicious processes is proposed, based on the analysis of the states of the entity of an information system as part of the cybersecurity system of an organization's information system. The implementation of this theoretical approach will make it possible to correctly formulate and solve the problem of detecting malicious processes based on the analysis of the states of the entity of the information system in real time. And in the event of a change in security, the state of this entity, when it is affected by destructive non-target processes, react to such events and restore its safe state.
Research results on the influence of radiation on constructive elements of atmospheric-­optical communication lines
Authors:   State University of Telecommunications, Kyrpach L. А. , Blazhennyy N. V.
Published: January 2022

The research results on the radiation resistance of the element base of atmospheric-optical communication lines are produced. The technical condition of the receiver under the influence of gamma radiation will determine the operability of atmospheric optical communication lines. The influence of gamma radiation as a consequence of a man-made disaster can affect the receiver of atmospheric-optical communication lines by the formation of reversible and irreversible radiation effects. This will cause a reduction of the detection ability of the receiver of atmospheric optical communication lines. The types of radiation defects and the degree of their influence on the detection ability depend on the energy of gamma quanta, as well as on the amount of the absorbed dose of gamma radiation and its power. Analysis of methods for estimating the functioning of atmospheric optical communication lines in a man-made disaster has shown that there is a need to develop recommendations for maintaining the detection ability of receivers of atmospheric optical communication lines under the influence of gamma radiation. Further research should be conducted to develop methods that take into consideration: the peculiarities of the man-made disaster; features of formation of radiation effects in the receiver of atmospheric-optical communication lines under the influence of gamma radiation; energy, activity and physicochemical characteristics of the mixture of radioactive radiation.
IоT integration in logistics
Authors:   State University of Telecommunications, Kolodyazhensʹkyy B. M. , Tushych A. M. , Kitura
Published: January 2022

The Internet of Things (IoT) in logistics has become widespread in the last decade mainly in the form of tracking devices. But that’s not all the IoT has to offer the industry. Technology is a tool to ensure the smoothness and continuity of the delivery process. Allows you to track those parameters in the work of technology that are not available to man or require a lot of attention and time. The introduction of IoT technologies in the field of logistics makes it possible to optimize the entire system, including warehouse operations, transportation and delivery. IoT provides an opportunity to improve process efficiency, security and quality of service. Analytics can be used for the entire value chain, so everyone benefits from the introduction of new technologies: logisticians, their partners and end users. The field of transportation is considered one of the highest priorities for the implementation of IoT solutions. The use of the Internet of Things leads to increased efficiency in the field of traffic control. The implementation of IoT solutions makes it possible to coordinate traffic, distribute parking spaces, etc. Such a vehicle monitoring system makes it possible not only to improve the transport infrastructure, but also to create all the necessary prerequisites for its growth. The IoT allows you to have a holistic view of the warehouse: from the ambient temperature, the amount of inventory to the performance of the equipment. Based on this data, companies can analyze overall performance and take maneuvers to improve safety and productivity. Logistics is based on improving operational efficiency. IoT technologies can improve productivity. GPS and location data from RFID tags simplify the process of tracking the delivery route of goods. The use of historical data will improve logistics operations. Big data will make it possible to identify the most effective couriers, truckers, determine the most efficient delivery routes, etc.
Analysis of 5G technology for games and communication
Authors:   State University of Telecommunications, Leontʹyev I. O. , Sribna I. M. , Pankratova O. S. , Zinchenko O. V.
Published: January 2022

Thanks to the joint work of industry companies, new devices are already entering the market and 5G networks and infrastructure are being actively deployed. And very soon real 5G gadgets will go on sale! In this article I want to talk about the new opportunities that the 5G era can give people. And these features, including those we have already talked about, are getting closer to users. Let’s talk today about what the advent of the 5G era means for games and communications. The key to the success of 5G cloud gaming is a good strategy that brings the right gaming games to an affordable market with the right infrastructure and coverage and provides a business case that delivers growth and expected ROI. 5G allows developers to deal with the problem of delays and gives them and users completely new features. We believe that with fifth-generation network technology, the very concept of "lag" in games will soon be forgotten, and the combination of 5G and augmented reality in multiplayer mobile AR-games will help bring mobile gaming to a whole new level. Using only smartphones, you and your friends will be able to play augmented reality paintball to combine the real world with the elements of the virtual. As in today’s paintball battle, when you need to run around the field and shoot balls of paint at your friends, you will catch them in the "sight" of your smartphone and tap the screen to fire digital paintball shells. In addition to reducing latency, 5G technology and artificial intelligence will help to ensure complete immersion in the game with quality graphics and new effects. For example, when one such virtual projectile hits the clothes, the ball will not just bounce off it, as in 4G games, it will make the fabric bend at the point of impact, and then in real time it will fill it with a bright.
Investigation of possibilities of replacement of cable lines by radio relays in difficult­-accessible and «problem» areas
Authors:   State University of Telecommunications, Dakova L. V. , Dakov S. Yu. , Duzhyy R. V. , Kulyk K. M. , Borzenko Yu. O.
Published: January 2022

The article considers the routes of cable systems of the telecommunication network, for each its advantages and features are determined. The key trends and prospects for the development of radio relay communication in Ukraine are noted. The analysis of the current state of digital radio relay communication systems in the market of information and telecommunication services is given, indicating their tactical and technical characteristics, their peculiarities of use are given. A detailed analysis of the possibilities of replacing cable communication lines in hard-to-reach and «problematic» environments with the latest digital radio relays and replacing the «problem» area with other promising wireless transmission systems. Promising systems of wireless information transmission are analyzed. The analysis showed that the decision to partially replace certain network components with more convenient ones should be implemented. To address the goal set in the article, the following steps are considered, namely: reducing maintenance costs, increasing the simplicity and speed of construction of the communication network, increasing network survivability to the detriment of simplicity, clarifying the possibility of compensating the data exchange rate, autonomy of the network structure from other public or private institutions. Recommendations for the use of the obtained results are the expediency of replacing cable communication lines with radio relays in hard-to-reach and problem areas and as an alternative, laser data transmission is chosen, which allows to significantly speed up information exchange between two stations on the «problem» area. any network flow. Laser receivers, due to their low power, do not pose a health hazard.
Using MLOPS framework to increase machine learning life cycle in IоT
Authors:   State University of Telecommunications, Nikolayenko O. M. , Polonevych O. V.
Published: January 2022

Recent years have witnessed a boom in IoT devices, leading to high data volumes and low latency demand, which has led to demand for the 5G networks. This infrastructure shift allows for real-time decision-making using artificial intelligence for IoT applications. Artificial intelligence (AIoT) is a combination of artificial intelligence (AI) technology with the Internet of Things infrastructure (IoT) to achieve more efficient IoT operations and decision making. Edge computing is emerging to enable AIoT applications. Edge computing enables generating insights and making decisions at the data source, reducing the amount of data sent to the cloud and central repository. An ecosystem to facilitate edge computing for AIoT applications has become essential to make real-time decisions. Edge computing is the process of performing computational tasks that are physically close to the target devices, rather than in the cloud or on the device itself. This allows you to gain knowledge, ideas, and decisions at the data source. The purpose of edge computing should bring the calculations closer to the data source and unload the centralized calculations to the decentralized ones. Edge computing allows the application of various machine learning algorithms to create new experiences and new opportunities in many industries, from a connected house to security, surveillance, and automotive. As for MLOps, IoT Edge is another deployment platform. However, if we use models on the IoT Edge, we need to consider some additional considerations. IoT Edge-targeted MLOps models must run offline mode. IoT models are more susceptible to data drift due to high data rates. IoT machine learning models need to be deployed on different target platforms, and we need to use the capabilities of these platforms.
Multi­level model of terrestrial and non­terrestrial telecommunications using optical wireless technologies
Authors:   State University of Telecommunications, Kremenetska Ya. A. , Makarenko А. О. , Rudenko N. V. , Bereznyuk A. V. , Lazebnyi S. H. , Yakovets V. P.
Published: January 2022

Non-terrestrial communication technologies will become a key component for the development of future 6th generation (6G) networks. Potentials, implementation prospects, problems and solutions for non-terrestrial telecommunications remain open areas for future research. The article discusses the use of millimeter and optical wavelengths in various configurations of multilevel space communications using LEO satellites, stratospheric platforms and unmanned repeaters. Wireless communication in MMW and OR has great potential for use in space communication systems. These technologies have the advantages of using azimuth line-of-sight channels in comparison with terrestrial ones. For example, the total zenith attenuation can be much less than the linear attenuation in the lower atmosphere. It also has advantages in terms of reconfiguration virtuality, coverage area and energy (spectral) efficiency. A sudden drop in communication quality due to atmospheric phenomena, including severe atmospheric turbulence, leads to the need for adaptive dynamic beam steering, which also leads to a decrease in the use of resources, both frequency and energy. Wireless and fiber optic communication systems have similarities in the operating wavelength range, processing methods. The methods of radio-photonics can be applied to wireless communication systems, where the technology of converting radio waves into optical, including the terahertz range, can be used. The comparison of the capacity of the Shannon channel for various multi-level scenarios of the satellite communication line is carried out. The directions of research to ensure the continuity of communication, adaptation to weather conditions, and the achievement of throughput up to 100 Gbit/s are analyzed.
Analysis directions for the development of future telecommunication technologies
Authors:   State University of Telecommunications, Syvyk O. S. , Yakovets V. P. , Kremenetska Ya. A.
Published: January 2022

The sixth generation (6G) of mobile networks is expected to be implemented in the next decade. The development of forecasts, applications, technologies and 6G standards has already become a popular research topic. The article analyzes new services and applications, such as holographic media programs, multisensory technologies. Basic technological solutions that solve the problems of existing fifth generation (5G) mobile networks are analyzed. These limitations include data rates, latency, reliability, availability, processing, connection density, and global coverage. Highlighted social and technological trends that initiate the movement to 6G. The most modern researches, technical problems which promote development of telecommunication technologies are discussed. The requirements and key technologies required for the implementation of 6G applications are presented in detail.
Statement of the problem of structural synthesis of a atmospheric­optical system
Authors:   State University of Telecommunications, Kyrpach L. A. , Blazhennyy N. V.
Published: January 2022

The formulation of the problem of structural synthesis of a atmospheric-optical system is carried out and methods for determining the criteria for the effectiveness of atmospheric optical systems are investigated, which is one of the most important and essential problems in their optimization. The analysis of methods for assessing the impact of radioactive radiation on FSO shows that the created holistic methods assess the impact of radiation effects in the element base on the impact of only penetrating radiation. Thus, the presence of shortcomings in existing methods does not allow to fully solve the scientific problem of assessing the impact of radioactive radiation on the FSO receivers, as a basis for developing recommendations aimed at preserving the values of the detection ability of the receiver under the influence of radioactive radiation. The solution of the problem is possible in case of creating input data for the method, which would be able to take into account the stages and duration of the formation of the zone of radioactive contamination, the aggregate composition of the mixture of radio nuclides, the energy and activity characteristics of this mixture and the characteristics of adsorption-desorption interaction of a mixture of radioactive substances with the surfaces of the devices, and would also take into account the peculiarities of the impact on the FSO receivers. Formulation of the problem of synthesis of a telecommunication system with the definition of characteristics of structure options is formalized.
Ten-year survival in glioblastoma patient with neurofibromatosis type 1: illustrative case
Authors: Basindwah Sarah , Alkhalidi Hisham , Abdelwarith Ahmed , Elwatidy Sherif
Published: January 2022

BACKGROUND

Gliomas are commonly detected in patients with neurofibromatosis type 1 (NF1) at an early age. Few patients with NF1 are diagnosed with glioblastoma. The course of management, response to therapy, and prognosis of such patients are unknown. Few reports have shown longer-than-average survival rates for patients with NF1 with glioblastoma.

OBSERVATIONS

A 27-year-old man with NF1 presented with symptoms of high intracranial pressure. Imaging and pathology showed left frontotemporal glioblastoma. Gross total resection was achieved, and concurrent chemoradiotherapy was administered. Recurrence of tumor was detected 48 months later, and the patient underwent tumor debulking and concurrent chemoradiotherapy. The patient received first-, second-, and third-line chemotherapy (temozolomide, bevacizumab, bevacizumab/irinotecan) with good tolerance and has survived >10 years since then with good functional status.

LESSONS

This case demonstrates >10 years overall survival of glioblastoma in a patient with NF1. Reports of patients with NF1 with longer survival may be attributed to the young age at diagnosis and relatively better tolerance for therapy. It might also support the growing evidence of a unique subset of glioblastoma associated with NF1 and opens the door for a more molecular targeted therapy in the future.
ТЕОРЕТИЧНІ ТА ПРАКТИЧНІ АСПЕКТИ СИСТЕМНОЇ ОПТИМІЗАЦІЇ ФУНКЦІОНУВАННЯ РИСОВИХ ЗРОШУВАЛЬНИХ СИСТЕМ НА ЕКОЛОГО-ЕКОНОМІЧНИХ ЗАСАДАХ
Authors: Turcheniuk V. О. , Rokochynskyі A. М.
Published: January 2022

Обгрунтовано та розроблено підходи до оптимізації на екологоекономічних засадах технічних і технологічних рішень з водорегулювання у проектах реконструкції та експлуатації рисових зрошувальних систем (РЗС). Досліджено та оцінено режимні, технологічніта технічні аспекти водорегулювання на РЗС у взаємозв’язку в змінних природно-агро-меліоративних умовах на прикладі Придунайських РЗС. Розроблено загальні принципи побудови й реалізації моделей оптимізації технічних і технологічних рішень з водорегулювання на РЗС на еколого-економічних засадах.
ДОСЛІДЖЕННЯ ЕФЕКТИВНОСТІ ДІЇ ОКСИЕТИЛИДЕНДИФОСФОНОВОЇ КИСЛОТИ (ОЕДФК) НА КРИСТАЛІЗАЦІЮ КАРБОНАТУ КАЛЬЦІЮ
Authors: Нaіevskуi V. R. , Kochmarskуi V. Z. , Нaіevska S. H. , Potapchuk A. V. , Kuba V. V. , Soliak L. V.
Published: January 2022

Методом неперервного дозування NaOH досліджено вплив ОЕДФКна кристалізацію карбонату кальцію. На основі потенціометричнихвимірювань pCa і pH встановлено, що залежність максимальнихзначень похідних d(pCa)/dt від pH є показниками ефективності діїінгібіторів сольових відкладень. Отримані результати узгоджуються з результатами гравіметричних досліджень.
АНАЛІЗ РОЗВИТКУ ТЕОРІЇ РУХУ ПОТОКУ В ТРУБОПРОВОДАХ
Authors: Khlapuk M. M. , Moshynskyi V. S. , Bezusіak O. V. , Volk L. R.
Published: January 2022

В статті приведено аналіз літературних джерел щодо розвитку теорії руху потоку в трубопроводах. За узагальненими результатами аналізу та теоретичних досліджень розкрито зв'язок між ламінарним режимом руху та структурою потоку в трубопроводах.
Humanities Educational Practices as the Instrument for Socio-Economic Identity Formation
Authors: Hlushko Tetiana
Published: January 2022

Ukraine is trying to develop an effective interaction strategy with the world on the socioeconomic and political levels for a long time. There is no tradition of internalized productive economic strategies in Ukrainian society, that is why strategic international interactions has been significantly complicated to our elites for the last three decades. During the period of our independence, we had to learn how to rebuild the state and through trials and errors we were finding those socio-economic strategies that will allow us to achieve the goals. However, the long searching process has not yet allowed us to create a productive socio-economic identity of Ukrainian society, which, in our opinion, is one of the functions of humanitarian education, that it does not perform sufficiently today. The article emphasizes that this phenomenon is fundamental for national determination of economic worldview guidelines in accordance with its contemporary socio-practical needs. During the research was found that socio-economic identity is a dominant ideological economic paradigm in social consciousness and, at the same time, it appears as a foundation of productive socially significant synergistic activities. Actualization of the relevant discourse is an urgent need of Ukrainian society in the dimension of more well-defined awareness for pragmatic national interest value in economic sphere. Therefore, educational practices in the field of humanities should provide an axiological component, focused on training of a comprehensively well-informed and creative personality, capable for critical thinking about prospects and opportunities for socioeconomic development in accordance to actual national economic strategies improvement needs and its necessary formal and informal social institutions.
Education and Social Change in the Works of Karl Popper and George Orwell: A Pedagogy of Caution for Marxists in Africa
Authors: Dasaolu Babajide Olugbenga
Published: January 2022

Some decades ago, the Brazilian scholar Paulo Freire wrote his Pedagogy of the Oppressed to indicate the rationale for social change and the place of education in that affair. This study takes a leaf from Freire’s work to dialogue how authentic and people-centered social change can be attained in Africa. In contemporary African political scholarship, scholars are divided over the methodology of attaining social change. Some take inspiration from the thoughts of Karl Popper who maintains that there are two approaches toward social change: The Piecemeal and the Utopian. It is also the case that Popper puts trust and emphasis on the former when he doubts and opposes the latter, which appeals mostly to Marxists in Africa. Since it has become a dominant locus for almost all of African scholars to take a Marxist approach in their articulation and struggle for social change, this study intends to serve as a caution. Caution because, it is an open secret that Marxists of African descent have been very critical and bitter of Popper’s version of social change for being reactionary; that it is a viewpoint which aims to preserve an exploitative status quo. When the onus of this study is to defend Popper against such uncharitable misrepresentations, it forays into George Orwell’s classic Animal Farm, for succor. Orwell’s fable is a revelation of the dangers that may emanate from Utopian social engineering in real life scenario. The unfortunate totalitarian era that greeted the animals in the aftermath of their violent and bloody revolution in Manor Farm is not only a lesson but serves to initiate the discourse regarding the intention and integrity of those leading social change and struggles across Africa. It is precisely for this reason that this essay beckons on Africans to initiate a platform for social change that will be void of violence and bloodshed. By taking a pedagogy approach to education, this research would have been able to explore the ways through which education can contribute to the plight of social change and social stability in Africa.
Responsibility of Research Activities of Universities: Conceptual Foundations and Standards
Authors: Petroye Olha
Published: January 2022

For the first time in domestic science, the article actualizes the topic of responsibility of research activities of universities as a complex problem. The author concludes on the growth of international, European, industry, national and institutional standards of responsibility in the situation of increased societal demands for responsibility from different actors, for different processes, in different fields, and at different levels of research activity. The article clarifies the preconditions and trends of standardization of responsible research in international and European documents. The author has identified the composition of the main subjects of research activities, namely state, national authorities, researchers, research organizations, cross-border cooperation partners, research financial institutions, stakeholders, including the private sector, civil society, as well as all other open science actors worldwide. The area of their responsibility at the system of research activities has been presented. 

The author has revealed conceptual foundations of the responsibility of research activities as a tool for harmonizing the whole process of research and innovation with the values, needs, and expectations of society. The harmonization provides for establishing cooperation between all stakeholders regarding collaboration in scientific education, setting of the research agenda, ensuring access to the results and projections of new research, adherence to the values of gender and ethical responsibility.

The place and leading role of the concept of responsibility of research activities as a component in the EU framework programs for research and innovation are shown. The role of universities in the increased responsibility of research activities and the formation of a culture of responsible research and innovation in society is substantiated.

The tasks for increasing the responsibility of research activities of domestic universities at the present stage are outlined: development of national standards and implementation of the policy of responsibility at all levels and in all areas of research; development of the algorithm of actions for successful implementation of standards of responsibility in the system of research activities of universities; providing training and creating conditions for the implementation of relevant research in universities.
Ways to increase the wear resistance of pistons of internal combustion engines (review)
Authors:   Podolsk Agricultural and Technical University, Dudchak T.
Published: January 2022

В статті зроблен аналіз матеріалів, з яких виготовляють поршня для двигунів внутрішнього згоряння. Для автомобільних і тракторних двигунів, зокрема, застосовують евтектоїдні суміші типу АЛ25 і заевтектоїдні, які містять мідь, нікель, магній та марганець. Приведений хімічний склад алюмінієвих сплавів. Поршні для швидкохідних, форсованих тепловозних, середньообертових двигунів виготовляють з сірого або ковкого чавуну (СЧ24-44, СЧ28-48,СЧ32-53), а також легованого присадками ванадію, хрому, титану, міді (ВЧ45-5). Для комбінованих поршнів застосовують жаростійкі сталі типу 20Х3МВФ. Проводяться дослідні роботи над поршнями з титану і вуглепластиків. Поршні з автоматичним регулюванням ступеню стиску дозволяють обмежити теплову і механічну напруженість деталей циліндро-поршневої групи, форсувати двигун по середньому ефективному тиску в 1,5-2 рази, покращити пускові якості, забезпечити можливість використання різних марок палива. Для двигунів внутрішнього згорання, компресорів, насосів та інших поршневих машин пропонується комбінований поршень з мідно-фторопластовими вставками. Вставки з мідно-фторопластової композиції забезпечують нанесення тонкої плівки міді на поверхні тертя на протязі всього ресурсу роботи двигуна, що значно прискорює припрацювання, зменшує задири і натири, збільшує зносостійкість і довговічність деталей ЦПГ. Дані основні недоліки і переваги експлуатаційних характеристик поршнів, виготовленних з різних матеріалів. Зроблен аналіз конструкцій поршнів. Представлені основні вимоги при конструюванні поршнів, це:простота конструкції, і по можливості забезпечення симетричності відносно осі циліндра;мінімальна маса, максимальна міцність і жорсткість, зносостійкість матеріалу;ефективний відвід тепла (охолодження); мінімальна собівартість виготовлення.
Pengaruh Model Pembelajaran CUPs berbantuan Macromedia Flash terhadap Peningkatan Kemampuan Pemahaman Konsep Matematis
Authors: Saadah Anisatus , Sa'adah Anisatus , Suherman Suherman , Netriwati Netriwati
Published: January 2022

Kemampuan pemahaman konsep matematis merupakan tujuan umum dari pembelajaran matematika. Berdasarkan pra penelitian yang telah dilaksanakan pada peserta didik kelas VIII MTs GUPPI 03 Belanga, Lampung Selatan bahwa kemampuan pemahaman konsep matematis peserta didik tergolong masih rendah. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh model pembelajaran Conceptual Understanding Prosedures (CUPs) berbantuan Macromedia Flashterhadap kemampuan pemahaman konsep matematis peserta didik.Penelitian ini merupakan jenis penelitian Quasy Eksperimental Design dengan desain Posttest Only Control Group Design. Sampel dalam penelitian ini adalah peserta didik kelas VIII MTs GUPPI 03 Belanga, Lampung Selatan pada tahun ajaran 2020/2021. Teknik pengumpulan data dalam penelitian ini berupa tes dan lembar observasi. Sebelum dilakukan uji analisis data terlebih dahulu dilakukan uji Normalitas dan uji Homogenitas. Pengujian hipotesis dalam penelitian ini menggunakan uji analisisvarian(Anava satu jalan) dan uji komparasi ganda (uji scheffe’).Berdasarkan hasil penelitian dan perhitungan uji Anava satu jalan, diperoleh kesimpulan bahwa terdapat pengaruh model pembelajaran Conceptual Understanding Prosedures (CUPs) berbantuan Macromedia Flashterhadap kemampuan pemahaman konsep matematis peserta didik. Berdasarkan hasil dari perhitungan Uji komparasi ganda (uji Scheffe’), diperoleh kesimpulan bahwa secara berurutan model pembelajaran yang paling baik untuk meningkatkan kemampuan pemahaman konsep adalah Conceptual Understanding Prosedures (CUPs) berbantuan Macromedia Flash, Conceptual Understanding Prosedures (CUPs) berbantuan Macromedia Flash, kemudian model direct instruction.Kata Kunci : Model Pembelajaran, Conceptual Understanding Prosedures (Cups), Macromedia Flash, Kemampuan Pemahaman Konsep Matematis
Etnomatematika: Identifikasi Batik Bakaran Berdasarkan Konsep Geometri Transformasi
Authors: Zakiyah Mawaddatuz , Malasari Putri Nur
Published: January 2022

Tujuan penelitian ini yaitu untuk mengeksplorasi konsep geometri transformasi yang terdapat dalam motif batik bakaran. Penelitian ini menggunakan metode kualitatif dengan pendekatan etnografi. Instrumen utama penelitian ini adalah peneliti sendiri, dimana selain peneliti berhubungan langsung dengan narasumber, peneliti juga yang mengumpulkan data melalui observasi, wawancara dan studi kepustakaan. Hasil penelitian ini menunjukkan bahwa dalam motif batik bakaran terdapat konsep matematika geometri transformasi diantaranya yaitu rotasi, refleksi, translasi, dan dilatasi. Hasil penelitian ini dapat dijadikan sebagai sumber belajar dalam pembelajaran geomeri transformasi. The purpose of this study is to explore the concept of transformation geometry contained in the batik bakaran motif. This study uses a qualitative method with an ethnographic approach. The main instrument of this research is the researcher himself, where in addition to the researcher dealing directly with the sources, the researcher also collects data through observation, interviews and literature study. The results of this study indicate that in the batik bakaran motif, there are mathematical concepts of transformation geometry including rotation, reflection, translation, and dilation. The results of this study can be used as a source of learning in transformational geomery learning.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI RENDAHNYA HASIL BELAJAR SISWA PADA PELAJARAN MATEMATIKA
Authors: M.Pd Andri , Rini Natalia , Parida Lusila
Published: January 2022

Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi rendahnya hasil belajar siswa pada pelajaran matematika di kelas IV SDN 2 Nobal Tahun Pelajaran 2020/2021. Bentuk penelitian ini ialah deskriptif kualitatif. Subjek penelitian ini adalah siswa kelas IV SDN 2 Nobal yang berjumlah 16 orang. Alat pengumpulan data yang digunakan dalam penelitian ini yaitu soal tes, wawancara dan dokumentasi. Berdasarkan hasil penelitian yang ditemukan, hasil belajar siswa pada pelajaran matematika di kelas iV SDN 2 Nobal tergolong rendah. Maka dari itu, faktor-faktor yang mempengaruhi rendahnya hasil belajar siswa pada pelajaran matematika yaitu dipengaruhi oleh kemampuan matematis seperti, kemampuan pemecahan masalah matematis, kemampuan komunikasi matematis, kemampuan koneksi matematis, kemampuan representasi matematis.
PERAN GURU PKN DALAM MEMBINA CIVIC SKILL SISWA SEKOLAH MENENGAH PERTAMA NEGERI 7
Authors: Hartini Agnesia , Petrus Simon
Published: January 2022

Tujuan Penelitian ini adalah untuk mendeskripsikan peran guru dalam membina civic skill siswa Sekolah Menengah Pertama Negeri 7 Tempunak. Metode penelitian yang digunakan dalam penelitian ini kualitatif deskriptif dengan bentuk penelitian deskriptif. Sumber data penelitian ini adalah guru PKn dan siswa SMP Negeri 7 Tempunak. Alat pengumpulan data menggunakan pedoman observasi, wawancara, dan dokumentasi. Data yang terdapat dianalisis menggunakan Reduksi Data (data reducation), Penyajian Data (data display), dan PenarikanKesimpulan (conclusion drawing). Temuan dalam penelitian ini memberi kesimpulan tentang: 1) Berdasarkan hasil penelitian, Peran guru PKn dalam membina civic skill siswa termasuk kedalam kategori sangat baik. Hal ini diperkuat dengan hasil pengamatan observasi, dan hasil wawancara. 2) Peran guru PKn dalam membina keterampilan siswa sangatlah penting sepertiguru harus bisa membimbing dan mendorong motivasi siswa dengan baik dalam peroses pembelajaran dikelas. 3) Guru PKn harus bisa berperan dalam mengatasi faktor penghambat dan pendukung dalam membina civic skill siswa antara lain: membimbing siswa, memotivasi siswa, dan membuat tata tertib yang berlaku bagi siswa, seorang guru harus perofesional dalammembina civic skill siswa.Kata kunci: Peran Guru PKn dalam Membina Civic Skill siswa.
GAYA BAHASA ANTOLOGI CERITA PENDEK DALAM CERPEN BINGKISAN PETIR CERPENIS KALIMANTAN TIMUR
Authors: Dwioktaviani Ursula , Zulkarnain Irwan
Published: January 2022

Penelitian ini bertujuan agar mengetahui bagaimana jenis, makna, dan fungsi gaya bahasa antologi cerita pendek dalam cerpen Bingkisan Petir cerpenis Kalimantan Timur. Penelitian ini menghasilkan simpulan: 1) gaya bahasa berdasarkan pilihan kata, terdapat 177 gaya bahasa yang merupakan gaya bahasa tak resmi. 2) gaya bahasa berdasarkan nada, terdapat 235 gaya bahasa yang merupakan gaya menengah. 3) gaya bahasa berdasarkan struktur kalimat, terdapat 98 gaya bahasa klimaks, 39 gaya bahasa antiklimaks, 21 gaya bahasa paralelisme, 11 gaya bahasa antitesis, 39 gaya bahasa repetisi. 4) gaya bahasa berdasarkan langsung tidaknya makna, gaya bahasa retoris terdapat 103 gaya bahasa yang terbagi menjadi 81 gaya bahasa hiperbola, 8 gaya bahasa erotesis atau pertanyaan retoris, 6 gaya bahasa pleonasme, 7 gaya bahasa elipsis, 2 gaya bahasa litotes, dan 1 gaya bahasa asonansi. Gaya bahasa kiasan terdapat 105 gaya bahasa yang terbagi menjadi 54 gaya bahasa metonimia, 32 gaya bahasa personifikasi, 13 gaya bahasa persamaan atau simile, 2 gaya bahasa ironi, 2 gaya bahasa sinekdoke, 1 gaya bahasa metafora, 1 gaya bahasa sarkasme.Kata Kunci:  Gaya Bahasa, Antologi Cerpen
UPAYA MENINGKATKAN KETUNTASAN NILAI UJIAN MENGGUNAKAN ANALISIS SWOT DI MADRASAH ALIYAH NEGERI KALIBEBER
Authors: Sofiati Sofiati
Published: January 2022

Penelitian ini bertujuan untuk mendeskripsikan peningkatan ketuntasan nilai ujian menggunakan analisis SWOT di Madrasah Aliyah Negeri Kalibeber. Penelitian ini bersifat deskriptif kualitatif, pendekatan dimana data-data yang dikumpulkan berupa kata-kata, gambar dan bukan angka. Sampel sejumlah 106 terdiri dari kepala madrasah, guru, staf tata usaha, orang tua/ wali peserta didik dengan teknik purposive sampling. Upaya untuk mencapai strategi WO tersebut antara lain:penerimaan input peserta didik baru yang masih rendah, sebagian besar kondisi ekonomi orang tua/ wali peserta didik cukup lemah, motivasi para peserta didik dalam belajar masih rendah, motivasi orang tua dalam mendorong anaknya untuk belajar masih rendah, belum semua guru menerapkan model pembelajaran secara PAIKEM, buku-buku referensi mata pelajaran bahasa Inggris belum lengkap jumlah guru baik membeli dari percetakan dan bantuan dari pemerintah serta penggadaan buku oleh pihak madrasah; target ketidaktuntasan mulai tahun pelajaran yamg akan datang adalah 10%.           Kata Kunci: Ketuntasan Nilai Ujian, Analisis Swot
KAJIAN SEMIOTIKA CERITA RAKYAT SUKU DAYAK SUAID
Authors: Olang Yusuf , Oktaviani Ursula Dwi , Diva Bernadeta
Published: January 2022

Penelitian ini bertujuan untuk: (1) mendeskripsikan Ikon dalam cerita rakyat suku Dayak Suaid; (2) mendeskripsikan Indeks dalam cerita rakyat suku Dayak Suaid; dan (3) mendeskripsikan Simbol dalam cerita rakyat suku Dayak Suaid. Penelitian ini menggunakan pendekatan kualitatif, dengan motode deskriptif analitik. Data dalam penelitian ini berupa rekaman cerita rakyat suku Dayak Suaid yang berjumlah 5 rekaman cerita yang berbeda dan bersumber dari informan yang berbeda. Data berupa rekaman ditranskripsi menggunakan aplikasi Elan versi 4.9.4, kemudian ditranslasi ke dalam Bahasa Indonesia. Berdasarkan analisis data dari 5 cerita tersebut, ditemukan 53 data temuan yang mencakup 10 Ikon, 23 Indeks, dan 20 Simbol. Hasil penelitian ini dapat disimpulkan bahwa temuan Ikon dalam cerita rakyat suku Dayak Suaid jauh lebih sedikit dibandingkan jumlah temuan Indeks dan Simbol. Hal ini menunjukan bahwa Ikon dalam setiap cerita sangat minim ditemukan. Berdasarkan penelitian yang telah dilakukan, disarankan untuk para peneliti  selanjutnya dapat melakukan penelitian yang  serupa sebagai tambahan penelitian semiotika yang lebih luas. Kata Kunci: Ikon, Indeks, Simbol, Dayak Suaid.
TUTURAN BERTANYA DALAM PEMBELAJARAN BAHASA INDONESIA DENGAN PENDEKATAN KOMUNIKATIF
Authors: Dide Nurliawati , Mujianto Gigit
Published: January 2022

Penelitian ini bertujuan mendeskripsikan tuturan bertanya guru dan peserta didik dalam pembelajaran bahasa Indonesia kelas XI SMK Negerei 1 Cerme Gresik. Teori tuturan bertanya dari Austin dan Searle yaitu Austin mengemukakan bahwa bertutur tidak hanya terbatas pada penuturan sesuatu, akan tetapi dapat berupa melakukan sesuatu atas dasar tuturan tersebut. Kemudian pemikiran dari Austin ini diperkuat oleh Searle dengan mengatakan bahwa sebuah unit terkecil dari komunikasi bukan berupa kalimat saja, melainkan tindakan tertentu, seperti membuat pertanyaan, perintah, dan permintaan juga termasuk ke dalam tuturan bertanya. Sumber data penelitian adalah guru dan peserta didik. Hasil penelitian menunjukkan guru dan peserta didik untuk menggunakan: (1) tuturan bertanya langsung dan (2) tuturan bertanya tidak langsung. Tuturan bertanya tidak langsung terdapat beberapa bentuk yaitu tuturan bertanya memberitahukan, tuturan bertanya memerintah, tuturan bertanya meminta, tuturan bertanya memohon, dan tuturan bertanya menolak. Hasil penelitian ini berimplikasi pada pembelajaran bahasa di SMK Negeri 1 Cerme Gresik yang berupa referensi bagi guru untuk menggunakan tuturan bertanya dalam kegiatan belajar mengajar serta menyampaian tuturan bertanya peserta didik di dalam proses pembelajaran.
PENGEMBANGAN MEDIA PUBG UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS IV SD
Authors: Fitriyah Nur Laili , Cholifah Tety Nur
Published: January 2022

This study aims to: (1) developing pictorial Pop-Up media (PUBG) appropriately to improve learning outcomes of elementary school students, (2) student learning outcomes using Picture Pop-Up media (PUBG). The research used is Research and Development (R&D) Borg and Gall. The subjects studied were students of grade IV SD. Instrument there are 5 data collection, namely: observation, interviews, questionnaire sheets, tests written, and documentation. Observations were made at SD Negeri 02 Glanggang. Interviews were conducted with class IV homeroom teachers. Questionnaire sheet respondents there are 2 lecturers for media validation and the fourth grade homeroom teacher for SD material validation. Instrument given pretest and posttest. Media developing is feasible or not seen from the results of material validation and media. The results of material validation were obtained 98% and media validation was obtained 94% which is categorized as very valid. On student learning outcomes seen from the pretest obtained the highest score therefore, it’s categorized as sufficient. In the posttest, the highest score was 98 and lowest is 86, the mean value is 93.5 which is categorized as very good. Based on the difference between the pretest and posttest mean scores the difference is obtained 45.4
PENGEMBANGAN MEDIA UPIN UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS IV SD
Authors: Izza Cholidatul , Cholifah Tety Nur
Published: January 2022

The purpose of this research is to develop UPIN (Smart Ladder Snake) media products and to find out the improvement of student learning outcomes using UPIN (Smart Ladder Snake) media on the material of ethnic and religious diversity in my country in grade IV SD. The type of research used is research and development (R&D) with a model developed by Sugiyono. The research was carried out at SD Negeri 3 Sumbermanjing using the subject of 15 grade IV SD students for the 2019/2020 school year. The techniques and instruments used in this study were interviews, observations, questionnaires, tests, performance, documentation. Based on the results of the research conducted, the following conclusions were obtained. Learning outcomes using 3_realm that is cognitive aspects with a percentage increase in learning outcomes of Indonesian language learning content by 60% while science subject content is 60%, affective aspects with a percentage increase in learning outcomes by 83%, psychomotor aspectswith a percentage increase in learning outcomes by 60%. Thus it can be concluded that the UPIN (Smart Ladder Snake) media on the material of ethnic and religious diversity in my country in grade IV SD can improve student learning outcomes.