bluuebunny/crossref_metadata_2025 huggingface dataset:
Дослідження акустичних характеристик дослідних зразків звукопоглинаючих конструкцій для газотурбінних двигунів
Authors: Rymarenko Yevhen
Published: August 2022

It is shown that the problem of aviation noise affecting the population near airports is still relevant. Pollution from aircraft noise is not a less influential factor than air or water pollution. The international community is paying close attention to tackling aviation noise by introducing requirements and noise limits for aircraft under development or in operation. Among the sources of aircraft noise, one of the main sources that should be singled out - the noise generated by gas turbine engines. Among the sources of noise of gas turbine engines should be noted to highlight the noise of the fan. To reduce the noise level of engines, various methods are used, among which should be noted the use of acoustic liners placed in the nacelles of the engine. To meet modern international requirements, acoustic liners must reduce the noise level in a wide frequency range. It is shown that there are several methods for determining the acoustic characteristics of acoustic liners: the standing wave method, the transfer function method, the reverberation chamber method, and the use of a flow-through acoustic channel. Each of these methods can be used in the stages of development of acoustic liners for gas turbine engines. It is shown that the standing wave method should be used at the initial stage of research, as it allows to determine the most promising acoustic liners for further research. This paper presents the results of research for six prototypes of acoustic liners. The measurement results of the prototypes were compared with the results of the measured design used to reduce the noise of the D-18T engine. Two prototypes should be distinguished among the prototypes. In the designs of the first group, noise reduction in various frequencies was achieved by the effect of viscous friction due to the holes in the filler cells as in porous fiber materials. In the designs of the second group, the expansion of the absorption frequency range was achieved due to the placement of cells with different resonant frequencies. Studies have shown that it is possible to create acoustic liners that absorb noise in a wide frequency range, so a prototype has a sound absorption coefficient of more than 0.8 in the frequency range from 1600 Hz to 3500 Hz.
Методика визначення характеристик сталої повзучості монокристалічного сплаву
Authors: Nemanezhyn Yevhen , Lvov Gennadiy , Torba Yuriy
Published: August 2022

The subject of this article is the phenomenon of material destruction during creep, as one of the most dangerous and damaging effects on turbine blades in the conditions of their operation. Considering the strength of the turbine blades of aircraft engines and power plants, note that the mechanism of cracks in the creep process is largely due to the peculiarities of the crystal structures of the blades and the properties of these structures. At this stage of development of world technologies, turbine blades are made by single crystal casting and directional solidification. These types of crystal structures are characterized by the anisotropy of their properties. The reason for the anisotropy of crystals is that the ordered arrangement of atoms, molecules, or ions in the interaction between them and the interatomic distances (as well as some unrelated direct relations, such as polarization or electrical conductivity) differ in different directions. The article pays special attention to the consideration of the creep model of an anisotropic alloy with a monocrystalline structure. The natural way to determine the material parameters of the theoretical material model is to conduct the required number of basic experiments. Numerical modeling using the known creep properties of single crystals is an alternative possibility to determine the parameters of the material. The algorithm described in this article allows us to determine all the average creep properties of a single crystal. The parameters of the described ratios can be obtained either because of direct experiments, or on the basis of micromechanical analysis, as in the case of composite materials. This article considers an example of obtaining some characteristics of the single-crystal alloy ZhS-32 because of the approximation of its creep curves, obtained experimentally. Based on Norton-Bailey's law and using the modern calculation system Maple Release 2021.0, the minimum creep deformation rate and creep constants are determined, and a graph of the creep deformation rate dependence on the material load level is plotted.
Контури керування і обмеження для побудови системи автоматичного керування авіаційним газотурбінним двигуном
Authors: Tovkach Serhii
Published: August 2022

The choice of programs and control algorithms for ACS determines the possibility of implementation in the engine of the expectancy in the construction of thermodynamic and strength characteristics. For the set modes of operation of the engine limit values of frequency of rotation of rotors   of gas temperature  , air pressure behind the compressor   are defined; on transient modes the size and duration of exceedances by parameters   of their maximum admissible values on the set operating modes is limited. The parameters of the GTE adjustment should be chosen so that they characterize the optimality and stability of the engine, as well as the level of loads on its construction. This article considers the process of construction of ACS GTE using control circuits and limitations: free turbine speed support circuit; gas temperature limiting circuit; the circuit of limitations of the resulting frequency of rotation of a rotor of the turbocharger; the circuit of limitations of "physical" frequency of turbocharger rotor rotation, etc. During the operation of each circuit, the value of the derived speed of the turbocharger rotor (minimum and maximum value) is calculated and at the same time the limitation of the fuel consumption is performed. Thus, for the gas temperature limitation circuit, the change in the coefficients   allows to achieve a different nature of the temperature change at the throttle response. The value of the coefficient   is limited by the value  *, which provides a sufficient factor of stability of the regulator. The   value was determined by the stable operation of the controller and the presence of the maximum possible delay in the full control circuit  . A model with certain transfer functions in the VisSim software environment was constructed for ACS GTE in terms of speed. Measures were taken to stabilize the system: to reduce the gain of the amplifier; changing the parameters of the amplifier and the feedback link; input to the block diagram of the P-regulator system; adding a PI controller system to the circuit; adjustment of the fuzzy regulator; neuro-fuzzy learning. The quality of the system is assessed. A satisfactory reaction time of 2.36 s and an overregulation of 2 % were obtained. The astaticity of the resulting system allows you to accurately maintain the speed in static mode, which means that the system can be used where the accuracy of parameter support is essential.
Апроксимаційно-марківські моделі зміни параметрів технічного стану силових та енергетичних установок у довготривалій експлуатації
Authors: Myrhorod Volodymyr , Gvozdeva Iryna , Budashko Vitalii
Published: August 2022

The design and implementation of systems for automatic control of changes in the coordinates of the state and the output variables of power and energy installations consist of several successive stages, which implementation is widely used mathematical modeling. One of the most important such stages is the development of the created system (regulator) on a semi-natural stand. Such a stand usually contains a sample of a system with physically implemented measuring channels, and the control object and actuators are made in the form of a real-time computer mathematical model (stand-simulator). The problem is to resolve the contradiction between the requirements of the adequacy of the computer experiment to the real operating conditions and the capabilities of the simulator stand because the mathematical model of the control object is deterministic. In real conditions, there are random disturbances, which determine the random nature of the original-measuring coordinates of the control object. The use of known statistical modeling techniques is limited by the stationary requirements because the controlled objects are multi-mode. A solution to this contradiction is proposed by applying new information technology, which consists of the consistent implementation of the stages of preliminary approximation of time series of deviations of such variables from the formed approximation model, and the stage of statistical modeling. As a statistical model of random processes of deviations of such variables from the formed approximation model, the Markov process model is proposed, which considers the possible correlation of the initial data. The application of the approximation model provides the conditions of stationary and correctness of the proposed model. The applied problem of modeling the change of parameters of the technical conditions of a multi-mode technical object in long-term operation on the basis of the proposed model and experimental data is solved.
Вплив комплексного модифікування на структуру й властивості жароміцного нікелевого сплаву
Authors: Danylov Serhii , Tоmkin Dmytro , Naumyk Valeriy , Tkach Daria , Klochikhin Volodymyr , Pedash Oleksii
Published: August 2022

In this work, a study of the influence of complex modification of the ZhS3DK-VІ nickel-based heat-resistant super alloy was conducted. The modification was performed out according to different technological schemes: with highly dispersed titanium carbonitrides Ti[Ti(C,N)] particles, with Ti [Ti(C,N)]+CoAl2O4 and Ti[Ti(C,N)]+CoAl2O4+Ni-Y complex that made it possible to investigate the specifics of the influence of the volume modifier Ti[Ti(C,N)] separately, and its complex effect with surface modifierCoAl2O4 and rare earth metals (with Ni-Y master alloy use) in the macro- and microstructure of a heat-resistant nickel alloy. It was shown that the use of modifiers allows for significant refining of macrograins, and the greatest effect was obtained with Ti[Ti(C,N)]+CoAl2O4 and Ti[Ti(C,N)]+Ni-Y+CoAl2O4complexes. Microstructure study allows to show that the value of interdendritic distances in both the case of modification with Ti[Ti(C,N)] and Ti[Ti(C,N)]+Ni-Y+CoAl2O4 complexes essignificantly decreased, from 100…130 μm to 80...120 μm, which is the result of many nuclei formation during crystallization in the volume of the alloy and with highly intense heat transfer from the melt by CoAl2Omodified ceramic mould after melt pouring. Based on the results of the influence of various types of modification on the microstructure of the alloy under study, it was established that modification according to all schemes allows obtaining carbides of smaller sizes, but grown sizes of carbonitrides was observed. Globular particles of carbide and carbonitrides are evenly located along the cross-section of the samples under study. In all cases of modification, a decrease in the value of the shrinkage microporosity was observed. The mechanical properties of the specimens after standard heat treatment shows, that modification with complexes under study allows provide mechanical properties that meet the specification requirements. The best complex of alloy mechanical properties at room temperature, fracture toughness and stress-rupture strength provides with Ti[Ti(C,N)]+Ni-Y+CoAl2O4 modifiers complex.
Обґрунтування вибору скандію для мікролегування високоміцних алюмінієвих сплавів
Authors: Kalіnіna Natalіja , Glushkova Diana , Tsokur Natalіja , Nosova Tetjana , Bagrov Valerij , Demchenko Sergiy
Published: August 2022

The substantiation of the scandium selection for microalloying and modifying of high-strength aluminum alloys. The research material is a high-strength aluminum alloy B96C1 of the Al-Zn-Mg-Cu system. Scandium was chosen as a microalloy and modifying element. The state diagram of Al-Sc, physical, and mechanical properties of scandium have been studied. Modes of heat treatment of B96C1 alloy with 0.3 % scandium have been developed. The structure and mechanical properties of the modified alloy were studied. The conducted complex of studies confirmed the microleveling and modifying the action of scandium in Al-melt, the technology of the introduction of scandium into melt-melt was developed, the amount of Sc was optimized. AlSc alloys have a significant effect on artificial aging. The study of the kinetics of the decomposition process showed the supersaturation of the solid solution obtained by crystallization. During the decomposition of a solid solution of scandium in aluminum, particles of the stable phase of Al3Sc are released. Based on the analysis of the Al-Sc state diagram, the homogenization temperatures of hardening and aging of the aluminum alloy B96Ts1 with optimization of the cooling rate of the workpieces were selected. In the modified blanks, grain grinding was achieved 2.5 times and the characteristics of the yield strength and yield strength of the alloy while maintaining plasticity. For aluminum alloy B96Ts1, the choice of scandium as a microalloying and modifying element is justified in terms of compliance with its physicochemical nature and properties of aluminum-based alloys. Because of hardening the alloys of the Al-Sc system, there is no decomposition of the solid solution with the release of Al3Sc intermetallic particles, which is a scientific novelty. The main effect of scandium is to increase the strength properties due to the formation of dispersed decomposition products of a solid solution of scandium in aluminum and preservation in heat-treated semi-finished products of stable structure with small subgrains. The establishment of the technology of the introduction of scan-action into the melt and temperature-time parameters of heat treatment of workpieces allowed to obtain a dispersed structure and a high set of mechanical properties of the alloy B96Ts1, which is the practical value of the work.
PEMBERIAN PINJAMAN KREDIT SECARA ONLINE MELALUI SISTEM PENDUKUNG KEPUTUSAN MENGGUNAKAN THE SATISFICING MODEL DI PT. BFI FINANCE INDONESIA CIREBON
Authors: Anita Anita , Suarna Nana
Published: August 2022

The existence of the internet today provides benefits directly or indirectly to the business world, education, community and more, from small to large scale. With the internet facility data can be stored, retrieved and sent easily to all directions. So can not be denied the existence of internet website becomes the main requirement in providing the fastest information in globalization today. In the creditworthiness assessment conducted by PT. BFI Finance Indonesia Cirebon is still experiencing difficulties. The presentation of credit lending information is often delayed. One form of utilization of this facility is by making Decision Support System Online Loan Disbursement Using The Satisficing Model. This system will be used to analyze the personality and income of a person who will perform vehicle loans. By using this analytical method is expected to generate and simplify the process of acceptance of creditor candidates in accordance with the expected criteria so as to streamline the cost and time.
PERANCANGAN ARSITEKTUR E-LEARNING DAN E-LIBRARY MENGGUNAKAN THE OPEN GROUP ARCHITECTURE FRAMEWORK- ARCHITECTURE DEVELOPMENT METHOD DI STKOM AL MA’SOEM BANDUNG
Authors: Ramadhani Tiffany Puspa
Published: August 2022

The concept of digital learning or e-learning is now widely applied in many universities. in this research is done architecture design of e-learning information system equipped with e-library as storage media of material needed in learning and also as media of search of library material which amount is not limited. The background of this architectural design is two, which is less effective teaching and learning activities when there is holiday or lecturer absence and the last is the limited number of library  materials in hardcopy. E-learning and e-library as one of the impacts of information technology advances can be utilized to overcome the obstacles in STKOM Al Ma'soem. With e-learning lecturers can provide lectures without having to  face-to-face with students. Whereas with the use of e-library students can get library materials online without limited space and time.
PENGEMBANGAN SISTEM INFORMASI PERSEDIAAN OBAT MENGGUNAKAN MODEL FIRST IN FIRST OUT DI APOTEK AL MA’SOEM BANDUNG
Authors: Supriatna Encep
Published: August 2022

Al Ma'soem pharmacy headquartered at Jl. Horse Race No. 46 Arcamanik Bandung, currently has 17 branches of pharmacies spread across several cities and regencies in West Java, including Bandung, Sumedang, Majalengka, Garut, and Cianjur. Good governance system makes Apotek Al Ma'soem grow and develop rapidly in several cities and districts in West Java. In the sales system has been supported with adequate information technology, so that drug sales services can be done effectively. The method used to assess the supply of drugs in pharmacies is to use the last price method. The impact of the application of the method of inventory value becomes unreal because the price used to assess the inventory is not the actual cost, but the last price entered. Likewise, the gross profit generated by the system becomes unreal because the gross profit generated by the system is not the difference between the selling price and the acquisition price, increment the difference between the selling price and the last price. This will certainly make it difficult for the financial section to calculate and make adjusting entries because there will be differences between cash flow reports with inventory reports, purchases and sales generated by the system.The purpose of this research is to develop inventory system using FIFO (First In First Out) model, which is to assess inventory according to its cost. The goal is to generate inventory reports and real gross sales income, making it easier for the financial section in preparing financial statements and minimize the occurrence of financial fraud. The system development method used is a prototype with the stages of collecting all the needs, building prototyping, prototyping evaluation, encoding the system, testing the system, evaluating the system, and using the system.The development of this system can result in reports of drug supplies and real gross earnings so as to minimize the occurrence of financial fraud resulting from the difference in nominal value of money with the value contained in the report, as well as facilitate and streamline the work of the financial section in loading financial statements.
BUSINESS PROCESS MODEL AND NOTATION (BPMN) DONAT MADU CIHANJUANG
Authors: Heryanto Deni , Asih Vemy Suci
Published: August 2022

This paper discusses the business process modeling at Donat Madu Cihanjuang, the purpose of this research is to model the business process using BPMN to improve in terms of service for consumers, starting from literature study and data collection through interview. Further modeling and simulation of current business processes using BPMN, problem analysis, modeling and simulation of proposed business processes and comparison of results. The method used is Business Process Improvement (BPI) approach. The results obtained are proposed modeling new business processes in improving services to customers (consumers).
PENGAMANAN SISTEM DAN DATA E-VOTING BERBASIS NETWORK
Authors: Helmiawan Muhammad Agreindra , Juna Dani Indra , Ramdhani Billy
Published: August 2022

Security in a system is vital and can not be ignored at all. System security has an important role to operate a system and keep running in running business processes that support an organization. In every organization, it must have important data and stored in a system mechanism either stand-alone or network-based. Ssytem that has been connected to the network will provide opportunities for the outside world to be able to get information presented by the system in realtime. One example of a system that provides information in realtime is E-Voting, E-Voting system is processing data entered by the user in giving his opinion. If a system that has been corrupted by an outsider or in the sense of an opinion of a user being changed for a particular purpose may be detrimental to the organization. Data security will be very necessary to keep intrupsi on system. The design and application of security methods in the E-Voting system aims to maintain the data provided by the user so that the data is genuine in accordance with the input and the data is original and feasible to be informed.
Hacia estudios traductológicos del chino clásico: elaboración de un corpus paralelo chino clásico-español
Authors: Sun Wei , Kozlova Inna , Chang Fuliang
Published: August 2022

El corpus, siendo una herramienta eficaz, se está empleando en múltiples ámbitos, entre los que se encuentran los estudios de traducción. Sin embargo, dicho recurso no se utiliza con mucha frecuencia en las investigaciones traductológicas cuando una de las lenguas en cuestión es chino clásico (la lengua escrita empleada antiguamente en China), y autores que sí hacen estas investigaciones suelen no mencionar los pasos a seguir cuando se trata un corpus paralelo ad hoc. El objetivo del presente artículo es presentar cómo se elabora un corpus paralelo chino clásico-español tomando como ejemplo la novela histórica Romance de los Tres Reinos y sus traducciones al español. Para ello, hemos descrito la problemática de creación y explotación de este tipo de corpus, siguiendo el orden de las fases del proceso. Resulta que algunas fases del proceso son universales, mientras que otras son propias de lenguas clásicas y de la combinación lingüística chino-otra lengua, en cuyo caso sí faltan aplicaciones eficaces. Con el trabajo, esperamos deparar información a los estudiosos que quieran realizar y profundizar las investigaciones basadas en corpus paralelo y en las obras clásicas de China.
Mario VARGAS LLOSA. Medio siglo con Borges. Santiago de Chile: Alfaguara. 2020. 108 pp.
Authors: Monge Arístegui Álvaro
Published: August 2022

Los efectos editoriales que provoca la obtención del Premio Nobel de Literatura resultan notorios. Así queda corroborado con la publicación de Medio siglo con Borges. Se trata de un breve libro que contiene dos entrevistas y cinco artículos que, desde 1964 hasta el 2014, Mario Vargas Llosa dedicó al escritor argentino...
Teknologi Akuaponik sebagai Home Farm untuk Meningkatkan Ketahanan Pangan di Desa Tampingmojo
Authors: Qomariah Umi Kulsum Nur , Faizah Mazidatul , Zuhria SIti Aminatuz , Alamsyah Moh Andrik Robil , Anggraini Sindi Yulia , Amrullah M Arsyad
Published: August 2022

Agriculture is an important foundation in the fulfillment of food commodities. Meeting household food needs is an important foundation for achieving food security. However, not all people in Tampingmojo Village, Tembelang District, Jombang Regency have agricultural land to be able to meet their food needs, especially agricultural land in Tampingmojo Village has decreased since the construction of the Mojokerto - Kertosono toll road, so that the supply of food commodities such as vegetables and fish depends on supplies from outside the village. Tampingmojo. Aquaponics is a solution for food security for the Tampingmojo village community. This community service purpose to introduce Aquaponics Technology to the Tampingmojo village community by utilizing available local resources. The targeted community for this activity is a group of PKK women and Karang Taruna youth in the village of Tampingmojo. The method used is Participatory Action Research (PAR) which is carried out in 3 stages, there are preparation, implementation and evaluation. The results of the evaluation showed that 80% of the post-test questions could be answered by participants and the delivery of simple aquaponic technology materials was well received and could be applied with the available resources in Tampingmojo village.
Budidaya Jamur Tiram dan Pengolahannya Sebagai Upaya Meningkatkan Ekonomi Kreatif Desa Beji
Authors: Inayah Tri , Prima Ellen
Published: August 2022

Jamur adalah satu bahan pangan yang banyak diminati masyarakat adaah jamur, ada berbagai jenis jamur yang banyak di konsumsi masyarakat. Mulai dari jamur enoki, jamur kuping, jamur tiram dll. Jamur tiram merupakan jenis jamur yang sering dikonsumsi karena mengandung berbagai vitamin di  dalamnya. Dalam jamur tiram setidaknya mengandung mineral, kalium karbohidrat dan juga vitamin B. Selain memiliki banyak kandungan, jamur tiram memiliki rasa yang cukup enak jika di konsumsi maka tak  heran jika saat ini mulai banyak yang membudidayakan jamur tiram, karena meliki nilai ekonomis yang cukup tinggi. Selain itu teknik dan tahapan yang diperlukan dalam budidaya jamur tergolong tidak terlalu sulit. Untuk itu salah satu program yang dipilih untuk meningkatkan kreatifitas dan kemampuan mahasiswa KKN adalah dengan pelatihan budidaya jamur. Langkah dalam pelatihan teknis budidaya jamur tiram dimulai dengan menyiapkan bahan baku seperti serbuk gergaji, bekatul, kapur, plastik. Setelah semua bahan siap selanjutnya proses produksi
Gravidade respiratória e fatores sociodemográficos associados ao desfecho clínico de pacientes com COVID-19 no Ceará
Authors: Martins Maria Iara Socorro , Castro Júnior André Ribeiro , Alcântara Daniel Germano , Santos Marcos Augusto Paula , Abreu Leidy Dayane Paiva , Moreira Francisco Jadson Franco
Published: August 2022

A COVID-19 causa complicações pulmonares importantes, oferecendo risco à vida. Objetivou-se compreender como a gravidade respiratória e os fatores sociodemográficos interferem no desfecho clínico de pacientes com COVID-19. Pesquisa descritiva, transversal, de abordagem quantitativa, realizada em hospital de referência em Fortaleza-Ceará, Brasil. Os dados foram coletados de novembro/2020 a setembro/2021, totalizando 470 pacientes com testagem positiva, sendo analisados pelo programa Microsoft Office Excel 2019. Quanto ao gênero, 56,8% eram do sexo masculino, com média de idade de 57,32 anos e 67,1% dos pacientes que evoluíram com alta hospitalar não apresentaram suporte de oxigênio à internação. Indivíduos residentes em regiões com Índice de Desenvolvimento Humano muito baixo foram mais suscetíveis à contaminação e maior mortalidade (46,1%), e as doenças crônicas degenerativas foram preditivas de letalidade. Os perfis sociodemográfico e clínico influenciaram os aspectos fisiopatológicos de desenvolvimento da doença e a evolução preditiva relacionada à permanência hospitalar e ao desfecho.
BINA DESA JADA BAHRIN MANDIRI BERBASIS PEMBERDAYAAN MASYARAKAT MELALUI KEGIATAN SIPIL SAHABAT DESA
Authors: Hambali Roby
Published: August 2022

Paradigma baru dalam sistem pendidikan nasional yang diamanatkan dalam Undang undang Nomor 23 tahun 2003 adalah satuan pendidikan berbasis kearifan lokal yang mendorong percepatan pembangunan di daerah berdasarkan potensi yang dimiliki oleh masyarakat lokal. Jurusan Teknik Sipil Fakultas Teknik Universitas Bangka Belitung sebagai bagian dari satuan pendidikan yang dimaksud memiliki tanggungjawab untuk menjalankan amanat tersebut, yang dituangkan dalam program kerja jurusan.Program kerja yang dimaksud adalah program Bina Desa Mandiri yang juga merupakan program unggulan Fakultas Teknik UBB. Dalam program Bina Desa Mandiri, Jurusan Teknik Sipil memilih Desa Jada Bahrin untuk dikembangkan, khusunya pada bidang infrastruktur. Kegiatan pertama mengangkat tema “Sipil Sahabat Desa” telah dilakukan pada mid semester Genap tahun ajaran 2014/2015 berupa kerja bakti penataan kawasan (kebersihan dan penanaman pohon), inisiasi taman bacaan, pemeriksaan kesehatan dan pengobatan, donor darah, serta sosialisasi sanitasi pemukiman sehat. Seluruh kegiatan ini merupakan langkah awal dalam rangka membangun kesadaran (awareness) masyarakat dalam pengelolaan dan pengembangan infrastruktur Desa Jada bahrin yang merupakan sasaran Desa Mandiri Fakultas Teknik UBB.
Tip 1 Diyabet, Çölyak ve Besin Alerjisi Birlikteliğinde Tıbbi Beslenme Tedavisi: Pediatrik Olgu Sunumu
Authors: Özkan Nilüfer , Kurtbeyoğlu Emine , Aslan Gönül Büşra , Caferoğlu Zeynep
Published: August 2022

Pediatride Tip 1 diyabet ve çölyak hastalığı birlikteliğine sıklıkla rastlanmaktadır. Bu birlikteliğin tıbbi beslenme tedavisinde, karbonhidrat sayımı ve glutensiz diyet önerilmektedir. Ayrıca, bu hastalıklara besin alerjisinin de eklenmesi tıbbi beslenme tedavisini daha da zorlaştırmaktadır. Büyüme ve gelişmesinin devam etmesi ve iyi bir metabolik kontrolün sağlanması için gluten içeren ve alerjen besinlerin elimine edildiği, karbonhidrat sayımı modelinin uygulandığı bir beslenme programının diyetisyenler tarafından planlanması gerekmektedir. Bu makalede Tip 1 diyabet, çölyak hastalığı ve besin alerjisi birlikteliği olan bir pediatrik olgu sunulmuştur.
The influence of model of eliciting activities on improving mathematical problem-solving ability
Authors: Qurohman M. Taufik , Nugraha Prasetya Putra , Romadhon Syaefani Arif , Fathurrohman Ahmad Syahid
Published: August 2022

The aims of this study is to improving problem-solving skills by combining the Model of Eliciting Activities (MEA) with Learning Model on the level of student independence. The technique used for sampling is cluster random sampling, namely by selecting two experimental classes and two control classes take one experimental class and one control class. Sample are students in grade 2A and 2B in Academic Year 2021/2022 with eigen-values material from Mechanical Engineering Study Program. In this study takes variables, namely problem-solving ability as a result with parameters i.e. with or without Model of Eliciting Activities (MEA). Data collection in unison with documentation, questionnaires, and test methods. And data processing using a two-way ANAVA 2 in unison with a 2x2 factorial design interaction as well as a determinant test using a benpheroni test. Based on the research, provide an understanding that students will gain learning in unison with the MEA get high problem-solving abilities than students Where students who get treatment with  learning is carried out conventionally, and students who have a high level of comfort have high problem-solving ability results abilities compared to  students who have a fairly low level of independence, so they have an influence on self-reliance and learning methods on students' problem solving Capabilities. Thus, students who have high comfort and get learning with the Eliciting Activities Model have a higher problem-solving ability compared to other types of learning interactions in this study.
Development of guided inquiry model mathematics learning tools to practice critical thinking skills for students in linear program materials
Authors: Opticia Nerva Nur , Khabibah Siti , Masriyah M
Published: August 2022

This study aims to describe the process of developing the device and producing a good quality guided inquiry model mathematics learning tool on linear program material for class XI SMA, and to describe the effectiveness of guided inquiry model mathematics learning which can train students' critical thinking skills on linear program material. This type of research is development research (RnD). The learning tools developed in this study are the Learning Implementation Plan (RPP), Students Worksheet (LKPD), and Critical Thinking Ability Test (TKBK) are developed using a 4-D development model which consists of four stages, namely the define stage, the design stage, the develop stage, and the disseminate stage. The research subjects for the trial class were 13 students of class XI MIPA 3 and the research subjects for the implementation class were 17 students of class XI MIPA 1. Based on the results of descriptive analysis, it was found that the learning tools developed were of good quality because they met valid, practical, and effective criteria. The learning device is said to be valid because all validators give a minimum score of 3 for each aspect of the assessment on a scale of 1-4 and the critical thinking ability test questions meet the valid, reliable, and sensitive criteria. The learning device is said to be practical because the teacher's activities in managing learning meet good criteria and the activities of students meet the active criteria. Learning devices are said to be effective because students 'responses to learning devices and learning activities meet the positive category, guided inquiry mathematics learning model to train students' critical thinking skills is achieved.
Being Jewish in Contemporary Finland: Reflections on Jewishness from Project Minhag Finland
Authors: Tuori Riikka
Published: August 2022

This chapter asks what being Jewish may mean in contemporary Finland by examining interviews of members of the Jewish congregations, collected in 2019 to 2020 in the research project Minhag Finland. The chapter first offers a brief assessment of the history of the Jewish community in Finland from its origins until present day, followed by a review of previous research on Nordic Jewish identities. Jewish identities in Finland are observed from three topical perspectives: how the informants negotiate their membership in an Orthodox Jewish congregation while living in a secularized society; how the elusive concept of “Finnishness” (national identity) interplays with just as elusive “Jewishness” (ethnic/religious identity); and, finally, the informants’ confrontations with antisemitism and racism in Finland. The chapter shows that during the last 30 years the Finnish Jewish community has evolved from a homogenous Ashkenazi (East European Jewish) community into a multicultural community. The community embraces many elements of “Finnishness” (national symbols and narratives), while the “difference” inherent to their Jewishness is not forgotten or suppressed. The chapter also shows how differently the mechanisms of antisemitism and racism in Finland influence the members of this diverse community.
Afterword: Re-Narrating Finnish Histories and Searching for the Politics of Hope
Authors: Keskinen Suvi
Published: August 2022

Although commonly perceived as ’outsiders’ to colonial and racial histories, the Nordic countries’ participation in colonialism and their complicity in the colonial/racial project need to be thoroughly investigated in order to understand the countries’ current racial formations. The economic, political, cultural and knowledge-production processes, developed in and through European colonialism, produced a world-system, in which Europe became equalized with civilized, culturally superior and economically developed nations. Even those parts of Europe not considered to constitute its political and cultural core, benefited in many ways from their location in Europe and (what later became named as) the “Western world.” Race and racial thinking was an elementary part of this world-system and the power relations it built. Moreover, settler colonialism in the Arctic is an essential part of Nordic colonialism. The chapter discusses central concepts that can guide critical analyses – colonialism, settler colonialism, colonial complicity and coloniality – connecting them to Finnish history. Moreover, an analysis of current Finnish society and its racial politics is elaborated through a reflection on the crisis of white hegemony, rise of white nationalism and the emerging politics of solidarity that could provide more hopeful future visions.
Visualizing Heritage, Ethnicity and Gender: Bodily Representations of Finnishness in the Photographs of the National Inventory of Living Heritage
Authors: Mäkelä Heidi Henriikka
Published: August 2022

The main goals of this chapter are to analyze: (1) how the claim of whiteness is reproduced in 21st-century Finland in the processes of producing intangible cultural heritage; and (2) how Finnishness is visualized and embodied in these practices. I scrutinize the newly established wiki-based open access publication National Inventory of Living Heritage (NILH, 2017–), which is a part of the Finnish implementation for the UNESCO Convention for the Safeguarding of the Intangible Cultural Heritage. In this chapter, I examine the photographs published in the NILH by using a methodological approach of visual discourse analysis. I conduct an analysis of 153 photographs that are divided into categories of (1) manhood, womanhood and family, (2) nature and naturalness and (3) visual othernesses of Finnishness. Building on interdisciplinary studies on heritage, banal nationalism and gender, I argue that the NILH photographs participate in reproducing the normative (e.g. heterosexual, white, family-centered and middle-class) images of Finnishness. Finnishness is embodied in the photographs in active, working, mature bodies that perform either heroic and masculine or collective and caring feminine tasks. Finns are also represented as having an intrinsic connection to “nature.” People are often portrayed in forested landscapes, and the pictures underline naturalized connections between the landscape, ethnicity and sexuality.
The North Engendered: Mythologized Histories, Gender and the Finnish Perspective on the Imagined Viking-Nordic Ideal
Authors: Rosenström Saga , Žiačková Barbora
Published: August 2022

Narratives derived from historical and archaeological knowledge form a core part of the creation of national identities. This chapter offers reflections and observations on the results of a survey-based pilot study into the construction of the Nordic woman in relation to an imagined and mythologized Viking past. In conducting the study, we addressed this topic from the perspective of the Nordic countries more broadly, while here we will focus on the answers of those respondents self-reporting as Finnish. We suggest that the image of “the Viking woman” as a symbol of a tradition of gender equality is of high importance to how national identities are formed in the Nordic countries. She represents an idea of the romantic North, and an idealized, explicitly or implicitly, white identity. How the “Viking woman” is envisioned by Nordic societies relates to femonationalist political narratives, and race and racialization in the present day. In the Finnish context, this is further entangled within the tension between Finnishness and the ubiquitous use of a historically derived Scandinavian symbol as pan-Nordic. Taking the respondents’ perspectives as a starting point, we explore the intersection between mythologized history and symbolism, womanhood and Finnish ethnic identity.
Tari Payung of Sibolga Coastal: Aesthetic Review
Authors: Sibuea Sitti Rahmah , Yusnizar  , Raden
Published: August 2022

The discussion in this paper is about the aesthetic review of the Sibolga Pesisir Payung Dance as one of the traditional arts in North Sumatra Province. The method in this paper uses a qualitative descriptive method, through an analysis that describes the situation in the field about Payung dance. This study concludes that the dance on the Sibolga Coast has a very touching meaning, and contains its own beauty value for the community, as seen in the presentation of the Tari Payung from the Sibolga Coastal area. The Tari Payung is a traditional dance of the Sibolga Coastal community which is included in the Sikambang art. This dance is always displayed in the traditional Sumando event (night barinai), or when the bride and groom are side by side on the aisle. This makes the Tari Payung unique, because this dance has messages and advice for the bride and groom as a new couple in building a household.
Numerical Approximations of a Nonlinear Volatility Model with European Options
Authors: Khan Jakobin Alam , Tushar Asir Intesar
Published: August 2022

Black-Scholes model plays a very significant role in the world of quantitative finance. In this paper, the focus are on both nonlinear and linear Black-Scholes (BS) equations with numerical approximations. We aim to find an effective numerical approximations for Black-Scholes model. Several models from the most relevant class of nonlinear Black-Scholes equations with European option are analyzed in this study. The problem is approached by transforming the problem into a convection-diffusion equation and later it is approximated with the help of finite difference method (Crank-Nicolson). The result of finite difference schemes (Crank-Nicolson) for several volatility models are presented, including the Risk Adjusted Pricing Methodology (RAPM), Leland’s model and the Barles’-Soner’s Model. At the same time, it is attempted to illustrate a comparison of different volatility models. In the case of linear Black-Scholes model, we approximate the model with finite difference method (FDM) and finite element method (FEM) and compare the results. All the numerical schemes are implemented in MATLAB and corresponding graphs are also presented here.
GANIT J. Bangladesh Math. Soc. 42.1 (2022) 050- 068
PENGARUH PERMAINAN OUTDOOR TERHADAP PERKEMBANGAN KOGNITIF ANAK USIA 4-5 TAHUN di PAUD ALANG-ALANG
Authors: Maharani Jessica Festi
Published: August 2022

Pengaruh permainan outdoor terhadap perkembangan kognitif anak usia 4-5 tahun di Paud Alang-Alang permasalahan yang dibahas dalam penelitian ini yaitu apakah permainan outdoor dapat mengembangkan aspek kognitif anak usia dini di PAUD Alang-Alang Kota Mataram, apakah aspek kognitif anak usia dini dapat dikembangkan dengan menggunakan permainan outdoor? Dengan tujuan penelitian untuk mengetahui perkembangan aspek kognitif anak usia dini di PAUD Alang-Alang.dan mengetahui perkembangan aspek kognitif anak usia dini dengan menggunakan permainan outdoor di PAUD Alang-Alang. Jenis penelitian ini adalah kuantitatif quasi eksperimen dengan menggunakan metode analisis data run test. Metode pengumpulan data yang digupa observasi, catatan anekdot dan dokumentasi. Sampel dalam penelitian ini adalah 20 siswa pada usia 4- 5 tahun tahun. Dari hasil penelitian aspek kognitif anak melalui permainan outdoor mengalami peningkatan pada hari pertama postest 80,75% dan hasil pretest 42,25% setelah hari kedua diberi perlakuan lagi aspek kognitif anak lebih meningkat 95,75% dan nilai pretest 65,25% kemudian pada hari ketiga perkembangan aspek kognitif 85,25% dan pretest 70,20% dengan adanya perlakuan maka Aspek Kognitif Anak Usia Dini Di PAUD Alang-Alang semakin meningkat
MicroRNA and Their Potential Role in Conjunctival Disorders
Authors: Syed Nazmul Huda , Zunaina Embong , Wan-Nazatul Shima Shahidan , Sharma Malvika , Shatriah Ismail
Published: August 2022

MicroRNAs (miRNAs) are the small noncoding RNA molecules which regulate target gene expression posttranscriptionally. They are known to regulate key cellular processes like inflammation, cell differentiation, cell proliferation, and cell apoptosis across various ocular diseases. Due to their easier access, recent focus has been laid on the investigation of miRNA expression and their involvement in several conjunctival diseases. The aim of this narrative review is to provide understanding of the miRNAs and describe the current role of miRNAs as the mediators of the various conjunctival diseases. A literature search was made using PubMed, Scopus, and Web of Science databases for studies involving miRNAs in the conjunctival pathological conditions. Original articles in the last 10 years involving both human and animal models were included. Literature search retrieved 27 studies matching our criteria. Pertaining to the numerous literatures, there is a strong correlation between miRNA and the various pathological conditions that occur in the conjunctiva. miRNAs are involved in various physiological processes such as cell differentiation, proliferation, apoptosis, development, and inflammation by regulating various signaling pathways, genes, proteins, and mediators. Pterygium was the most studied conjunctival disease for miRNA involvement, whereas miRNA research in allergic conjunctivitis is still in its early stages. Our review provides deep insights into the various miRNAs playing an important role in the various conjunctival diseases. miRNAs do have the potential to serve as noninvasive biomarkers with diagnostic, prognostic, and therapeutic implications. However, multitudinous studies are required to validate miRNAs as the reliable biomarkers in conjunctival pathologies and its targeted therapy.
Comparison of Clinical Outcomes among Conventional Scleral Fixation, Retropupillary Iris-claw Intraocular Lens Implantation, and Intrascleral Fixation
Authors: Kim Min-Ji , Han Gyu Le , Chung Tae-Young , Lim Dong Hui
Published: August 2022

Purpose: To compare the efficacy and safety of conventional scleral fixation (C-SF), retropupillary iris-claw intraocular lens (RP-IOL) implantation, and intrascleral fixation (ISF).Methods: This retrospective observational study included 58 patients (58 eyes) who underwent C-SF (23 eyes), RP-IOL (23 eyes), and ISF (12 eyes) by a single surgeon at Samsung Medical Center from October 2017 to July 2020 and were followed up for at least 6 months. This study analyzed various clinical outcomes before surgery, and 1 day, 1 week, 1 month, 3 months, and 6 months after surgery.Results: Six months after surgery, best-corrected visual acuity in logarithm of minimum angle of resolution was 0.08 ± 0.10, 0.08 ± 0.16, and 0.03 ± 0.04 in C-SF group, RP-IOL group, and ISF group, respectively, and there was a significant improvement in each group compared to preoperative best-corrected visual acuity. All groups showed a significant increase in astigmatism postoperatively, but no between-group differences were observed. The prediction error was -0.15 ± 0.77, 0.56 ± 0.62, and 0.44 ± 1.00 diopters in the three groups, respectively, indicating RP-IOL group and ISF group for hyperopic shift. The three groups did not differ in terms of absolute prediction error. Six months after surgery, the corneal endothelial cell counts were 2,073 ± 691, 2,014 ± 692, and 1,712 ± 891 cells/mm2, respectively, which were lower than before surgery. IOL dislocation occurred in five eyes only in RP-IOL group, two of which underwent two reoperations, and reenclavation was performed smoothly without complications in all cases.Conclusions: Although the frequency of IOL dislocation in RP-IOL group was higher than that in the other groups, it can be reenclavated relatively easily. As a method of secondary IOL fixation, both RP-IOL implantation and ISF were as effective as conventional scleral fixation.