bluuebunny/crossref_metadata_2025 huggingface dataset:
АНАЛІЗ ПРИСУТНОСТІ ПРОГРЕСИВНИХ РІШЕНЬ ВІТЧИЗНЯНОГО ВИСОКООБЕРТОВОГО МАЛОЛІТРАЖНОГО ДИЗЕЛЯ У ДВИГУНАХ СВІТОВОГО АВТОМОБІЛЬНОГО ТРАНСПОРТУ
Authors: Grytsyuk O. V.
Published: August 2024

Вступ. Базові (які закріплюють розмірність) модифікації сімейств дизелів створюються до впровадження у серійне виробництво не менше 15 років, на протязі яких відбувається вибір основних конструктивних і регулювальних параметрів, прогнозування паливно-економічних і екологічних показників, а також формування стратегії подальшої долі наступних розробок сімейства. У роботі проведено аналіз досвіду створення вітчизняних автомобільних малолітражних високообертових дизелів на протязі 15 років, а саме з 1998 по 2012 р. Визначено, що Харківська школа дизелебудування за своїм новим і дотепер ще останнім напрямом розвитку конструкцій вітчизняних двигунів внутрішнього згоряння створила за цей період ціле сімейство автомобільних дизелів потужністю 100–175 к. с. подвійного призначення у чотири- та шестициліндровому виконанні. Мета. Дана стаття аналізує той обсяг науково-дослідних і дослідно-конструкторських робіт вітчизняного автомобільного дизелебудування, який зробив свій внесок у світовий розвиток автомобільного транспорту. Результати. Визначено, що такі рішення, як 0,5 дм3 робочого об’єму циліндра, сформована зовнішня швидкісна характеристика та локальний передпусковий підігрів холодного палива, вже знайшли аналогічне застосування у сучасних закордонних конструкціях автомобільних дизелів, тоді як деякі інші ще знаходяться (винятково на думку автора) на творчому шляху до свого застосування. Серед них і зменшення відношення ходу поршня до діаметру циліндра до 0,93–0,95. Висновки. У матеріалах статті наведено конкретні приклади щодо кожного як конструктивного, так і регулювального рішення вітчизняного двигунобудування у сегменті автомобільного дизеля. Виконаний при цьому обсяг науково-дослідних і дослідно-конструкторських робіт, безумовно, зробив свій внесок у світовий розвиток автомобільного транспорту.
РЕАЛІЗАЦІЯ НЕЙРО-НЕЧІТКОЇ МОДЕЛІ ДЛЯ ОЦІНЮВАННЯ ЕФЕКТИВНОСТІ ТРАНСПОРТНОЇ СИСТЕМИ
Authors: Kostian N. L.
Published: August 2024

Вступ. Надійні та ефективні транспортні системи забезпечують цільовий рівень якості життя. Критеріями оптимізації транспортної системи виступають індикатори роботи її елементів. Під час проєктування модулів інтелектуальних транспортних систем доцільно закладати математичні моделі, які можна адаптувати під мінливі умови функціонування зазначених систем. Аналіз останніх досліджень показав, що для оцінювання ефективності роботи транспортної системи доцільно застосовувати нейронні технології та системи нечіткого виведення. Мета. Дана стаття уточнює розроблені за результатами попередніх досліджень математичні моделі для оцінювання енергоефективності заданих конфігурацій транспортної системи шляхом застосування нейро-нечітких технологій. Результати. За результатами спостереження за рухом транспорту в заданих умовах сформовано три масиви статистичних даних: навчальна, тестова та контрольна вибірки для введення в систему ANFIS середовища Matlab. Ураховуючи кількість вхідних параметрів, генерування нейронної мережі виконано за методом субстрактивної кластеризації у neuroFuzzyDesigner GUI. Навчання мережі проведено за двома методами: методом зворотного поширення помилки та гібридним методом. Гібридний метод виявився більш продуктивним. Середньоквадратична помилка RMSE на навчальній вибірці становить 2,1153×10-8. Розроблена нейронна мережа дала змогу дослідити сумарний вплив параметрів ТС на енергоефективність ТЗ досліджуваних категорій та транспортних технологій. За результатами дослідження можна стверджувати, що параметри ТС більшою мірою чутливі до зміни своїх значень для пасажирського транспорту, ніж для вантажного. Висновки. Було досягнуто більш високу точність нелінійної моделі для оцінювання енергоефективності ТЗ порівняно з попередніми дослідженнями. Точність моделі суттєво зросла за рахунок поєднання систем нечіткого виведення з нейромережевими технологіями. Дану модель доцільно використовувати в підсистемі оцінювання ефективності роботи функціональних елементів локальних ТС у складі ІТС на регіональному та державному рівнях.
Senyapan pada Ujaran Bopak dan Gabriella dalam Acara Tonigh Show Net: Studi Psikolinguistik
Authors: Rohmatin Kartika Nur Khozaainah , Nisa Choirun , Habib Rahmadina Amalia
Published: August 2024

This study aims to examine various forms of silence that occur in Bopak and Gabriella's conversation on the Tonight Show Net program. This type of research is qualitative descriptive research. The data source comes from the Tonight Show Net YouTube channel on the episode Bopak yang Demen, Tapi Malah Dicomblangin ke Desta! The subjects of this study were Bopak and Gabriella as guest stars on the show, and Desta, Hesti, and Dustin as presenters. The research data are utterances containing silence uttered by Bopak and Gabriella. The data collection techniques used were listening and note-taking. At the data analysis stage, the researcher used a descriptive analysis technique by identifying and describing the forms of silence produced by Bopak and Gabriella's utterances on the show, as well as explaining the causes of the silence. The study results showed that in Bopak and Gabriella's speech, silent silences, silences filled with sounds, and silences filled with words were found. The reason for this silence is that the speaker forgets the vocabulary that will be spoken, is not ready for the sentence that will be spoken and is nervous due to confusion about what will be said and also unstable emotions.
Влияние величин коэффициентов Пуассона на процесс распространения упругих продольных волн в изотропных материалах
Authors:   ФГБУН Институт физики прочности и материаловедения СО РАН, Томск, Россия, Кривошеина М. Н. , Туч Е. В. ,   ФГБУН Институт физики прочности и материаловедения СО РАН, Томск, Россия
Published: August 2024

В работе рассмотрено влияние экстремальных значений коэффициента Пуассона материала на процесс распространения упругих продольных волн и переход кинетической энергии в потенциальную и обратно в процессе удара о жесткую стенку цилиндров - от пластинчатой до стержневой форм при непрерывном изменении формфакторов. Показана зависимость интегральных характеристик процесса деформирования от коэффициента Пуассона материала у цилиндров различных геометрий и шаров. Моделирование ударного нагружения цилиндров по жесткой стенке выполнено с помощью динамического метода конечных элементов тетраэдральной формы в трехмерной постановке. Показана связь коэффициентов Пуассона с коэффициентами восстановления скорости цилиндров после удара тела о жесткую стенку и механизм существенного уменьшения коэффициентов восстановления скорости. При этом уменьшение коэффициентов восстановления скорости цилиндров после упругого удара о стенку не связано с потерями от выделения тепла, сопротивлением воздуха и малой пластической деформацией, так как они не учитываются в математической модели. Показаны принципиальные отличия процессов ударного нагружения цилиндров компактных форм и шаров, имеющих такой же диаметр. Целью работы было выявление формфакторов, чувствительных к экстремальным значениям коэффициентов Пуассона, определяющих переход кинетической энергии в потенциальную и обратно в процессе удара, а также на изменения волновых картин деформирования при ударном нагружении. Показано, что для изотропных материалов значения коэффициентов Пуассона определяют необходимость учета формфакторов и величины диапазонов формфакторов, в которых наблюдаются уменьшения коэффициентов восстановления скорости, а также невозможно устойчивое определение скоростей распространения упругих продольных волн или волн Похгаммера.
Study of geodynamic and hydrogeological criteria for assessing the hydrocarbon potential of the Alakol depression
Authors: Sanatbekov M. E , Zholtaev G , Tileuberdi N , Auelkhan E. S , Imansakipova Z. B
Published: August 2024

Kazakhstan is experiencing a gradual decline in commercial oil reserves. First of all, this is due to the low probability of discovering new large deposits in the main oil and gas complexes, which are well studied by geological and geophysical methods. Purpose. To identify key criteria that determine the possibilities for searching for hydrocarbons in a given geological area. Methodology. The study includes an assessment of the underground horizons’ structural features, reservoir properties analysis and study on hydrogeological parameters of the region. For the analysis of hydrocarbon potential, the results obtained while conducting geological exploration work were used. The methods of mathematical statistics were used to process the experimental data. Findings. The results of a complex analysis of geodynamic and hydrogeological factors affecting the hydrocarbon potential of the Alakol depression in Kazakhstan are presented. Geodynamic criteria play an important role in the assessment and exploration of oil and gas deposits. In this connection, the main geodynamic factors which are usually considered when studying the oil and gas potential are shown. Originality. Based on the data from geodynamic and hydrogeological studies, it can be concluded that there are three eras of intense sedimentation in the region, with a special emphasis on the Carboniferous and Jurassic. Lower Jurassic deposits are important to study, especially in the context of hydrocarbon potential. Therefore, the results of the assessment of the oil and gas potential of the Alakol sedimentary basin are of scientific novelty. Practical value. The results of the study are of practical significance and can be used in planning and carrying out work on the search and exploration of hydrocarbons in the Alakol depression.
Combined roasting and leaching treatment for reducing phosphorus, aluminum and silicon in oolitic iron ore
Authors: Ammour I , Sabba N , Zeriri I , Bouslama A , Sakher E
Published: August 2024

Purpose. To enhance the quality of oolitic iron ore extracted from the Gara Djebillet mine in southern Algeria by reducing the levels of silicon, aluminum, and phosphorus, thus making it more suitable for use in the steel industry. Methodology. The study involves pre-treating the Gara Djebillet iron ore through roasting, followed by two stages of leaching with separate acid and base leaching steps. Additionally, the impact of introducing an additional roasting step at 800 °C between the two leaching stages is examined. Findings. Chemical leaching of the raw ore without roasting pre-treatment results in a reduction in silicon, aluminum, and phosphorus contents from 4.45, 5.11 and 0.61 % to 2.68, 3.36 and 0.3 %, respectively. However, the iron content decreases from 52.42 to 45 %. Pre-treating the ore with roasting combined with the two leaching stages reduces the phosphorus content to 0.15 % and increases the iron content to 55.25 %. The silicon and aluminum contents decrease to 4.2 and 5 %, respectively. Introducing a second roasting step between the two leaching stages further decreases the phosphorus content to 0.15 %, but the iron content only increases to 54.25 % after the second acid leaching step. The aluminum and silicon contents increase to 4.5 and 5.3 %, respectively. Originality. This study introduces a novel approach to improving the quality of oolitic iron ore by investigating the efficacy of pre-treatment with roasting followed by two stages of leaching. The research contributes valuable insights into the effectiveness of these methods for reducing undesirable elements in iron ore. Practical value. The findings offer practical implications for the steel industry, suggesting potential methods for enhancing the quality of iron ore from the Gara Djebillet mine. Implementing these methods could lead to increased efficiency and cost-effectiveness in iron ore processing, ultimately benefiting steel production processes.
Strength analysis of the model 918 wagon under non-typical bulk loads
Authors: Fomin O. V , Prokopenko P. M , Fomina A. M , Klymash A. O , Kuzmenko S. V
Published: August 2024

Purpose. Highlighting the results of the analysis of the stress-deformed state of the wagon body of the 918 model under non-typical loads with bulk cargo. Such an analysis was carried out with the aim of investigating the possibility of transportation of various types of bulk cargo (for example, various types of raw materials, agricultural products, construction materials, etc.) in the existing design of the section of the refrigerated wagon. Methodology. In order to ensure uninterrupted railway transportation in today’s difficult conditions, it is proposed to use scientific and applied approaches to develop the possibility of using existing models of wagons for types of transportation that are not typical for them. Namely, to consider the possibility of using refrigerated wagons for the transportation of bulk cargo. A systematic approach is used to conduct such research. This included: determination of the study of the specifics of the impact of bulk cargo on rolling stock structures; analysis of design and technological documentation to create a spatial 3D model of the wagon under investigation; creation of a calculation model using a modern software complex; checking the adequacy of the developed model and the accuracy of the data obtained with its help; application of non-typical design loads; obtaining and analyzing pictures of stress-strain states by the finite element method. Findings. A 3D model of the body module of the model 918 wagon was developed. The results of the analysis of the equivalent stress plot according to the first mode proved that the greatest stresses are 800 MPa, that is, they significantly exceed the permissible ones. According to the third mode, the highest stresses are 320 MPa and also exceed the permissible ones. The results of the analysis of the plot of equivalent stresses, which occur during expansion, proved that the loads are excessive. The cladding, supported only by racks, cannot hold the load from the bulk cargo. Originality. A strength analysis of the existing design of a refrigerated wagon section was conducted under non-typical bulk cargo loads. Practical value. The obtained results of the analysis of the stressed-deformed state of the body of the model 918 wagon when loaded with bulk cargo made it possible to assess the potential possibilities of such transportation. It is expedient to use such results when carrying out research and development works on the improvement (modernization) of the existing sections of refrigerated wagons to ensure the possibility of transporting bulk cargo in them. This, in turn, will increase the efficiency of the domestic fleet of freight wagons.
The model of economic cooperation systems in the context of implementation of the “One Belt One Road” initiative
Authors: Yastrubskyy M , Wang Zh , Zhang Q , Pavlovskyi S
Published: August 2024

Purpose. To develop recommendations on the effectiveness of economic cooperation between Ukraine and China in the context of the implementation of the One Belt One Road initiative (BRI), using the gravity model of trade to analyze the factors influencing such cooperation. Methodology. Analysis of scientific literature and Internet sources – to determine the purpose and objectives of the research; formalization methods – to describe the characteristics, dynamics and states of the gravity model of trade; methods of the theory of the gravity model of trade – to analyze factors affecting bilateral trade and the construction of a model of economic cooperation between China and Ukraine. Findings. A gravity model of trade between China and Ukraine was developed in the context of the implementation of the “One Belt One Road” initiative, which illustrates the influence on bilateral trade of such factors as the size of the economy, the level of demand, port infrastructure, the logistics efficiency index, participation in international organizations and bilateral mutual recognition agreements. It has been proven that the geographical distance and time of trade registration have a negative effect on the efficiency of bilateral trade. Institutional factors also play a key role in bilateral trade. Originality. For the first time, the use of the gravity model of trade has been proposed to assess factors influencing bilateral economic cooperation between China and Ukraine, which contributes to the identification of key factors influencing such cooperation. It has been proven that the dynamics of bilateral trade relations are significantly influenced by the factor of institutional stability and infrastructure development. Practical value. The proposed approach makes it possible to formulate proposals regarding the formation of economic policy aimed at strengthening trade cooperation along the BRI path. They include strengthening infrastructure construction, promoting multilateral cooperation, creating effective mechanisms for economic and trade cooperation, accelerating the development of the free trade area within the framework of the BRI, removing trade barriers, strengthening environmental trade management, and unlocking the trade potential of the BRI countries.
Ethical and social incentives for the transformation of the business model of enterprise management in conditions of sustainable development
Authors: Nitsenko V , Dankevych A , Dzoba O , Ustenko A , Bashynska Yu
Published: August 2024

Purpose. Analysis of the theoretical-methodical and practical principles of ensuring the socio-ethical values of the functioning of Ukrainian companies and the development of potential scenarios for the development of events in the conditions of the implementation of corporate social responsibility (CSR). Methodology. The research methodology includes the following methods: - dialectical and hermeneutic method – to identify changes and connections in the socially oriented approach of companies and their consequences; - scenario modeling – to determine the consequences of decisions made by company management regarding changes in social and ethical values in the short- and long-term; - system analysis – to analyze the interrelationships of changes in the socio-ethical values of business and their consequences for the company’s management and other interested parties; - PESTLE analysis – to stratify international documents in the field of CSR and socio-ethical and other factors affecting the functioning of companies; - grouping – to classify companies according to the observance of social and ethical principles of work within the framework of CSR. Findings. It is noted that in terms of sustainable development, company management should pay attention to the issues of CSR, including social and ethical values. In the international legal field, documents have been developed under the auspices of the UN regarding CSR, some of which have been ratified in Ukraine. This group of documents is optional for use by company management, but affects access to international capital markets, rating and reporting transparency. Companies in the energy sector and metal rolling implement the principles, standards and norms of social and ethical business into their practice, ensuring a positive reputation and image, supporting social infrastructure and welfare of employees and the general population, etc. Originality. The conducted analysis made it possible for the first time to stratify international documents on CSR and factors related to social and ethical values of companies using PESTLE analysis. Potential scenarios for the development of companies in the short- and long-term are developed and described in terms of the implementation of social and ethical incentives within the framework of CSR business. Practical value. The given stratification of international documents for socio-ethical business conduct can be useful for the scientific community and in educational institutions. The developed scenarios of the functioning of companies in the conditions of the implementation of social and ethical incentives within the framework of CSR business will be useful to company managers, specialists and scientists investigating CSR issues.
A Demographic Study of Cataract Cases of Chattogram Hill Districts with Their Surgical Outcomes
Authors: Khan Md Altaf Uddin , Robi Nazmul Haque , Akter Afroza , Abedin Joynul , Sultana Nahid
Published: August 2024

Background: A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision. To describe the ocular demographic characteristics in relation to cataract blindness and cataract surgical coverage and to assess the visual outcome of cataract surgery is the objective of carrying out the study.
Materials and methods: It was a retrospective study conducted during the period between February 2018 and February 2020 at Chattogram Lion's Eye Institute and Hospital. 555 individuals age 20-119 years were selected using probability proportional to size sampling. Written informed consent was obtained from all eligible patients. All patients underwent basic eye examination by ophthalmologist. Visual impairment was determined for each eye according to standard WHO categorization.
Results: The participation rate was 94.95%. This include 292 males and 263 females (M:F,1:1.3). The age range was 20 to 119 years with a range of 63.46± 11.91 years (63.67±12.65 years in male and 63.17 11.05 years in females). Most of the patients (n=213, 38.36%, 95% CI: 1.49-2.49%) were aged 60 years and above. 407 patients (M:F- 40.54%:32.79%) had cataract in both eyes, 148 (M:F-14.41%:12.25%) had in one eye. Among them previous cataract surgery 34 (M:F=3.60%: 2.52%) had uniocular pseudophakia. However, cataract surgical coverage rates were lower for female than male. 58.43% eyes with cataract surgery had good VA (6/6 - 6/18).
Conclusion: The study highlights high prevalence of blinding cataract as compared to Chattogram region. Education and early disease awareness and access to cataract surgical services would play an important role to increase the CSR in the area and presupposes the extended role of Chattogram Lions Eye Institute and Hospital and similar eye care providers in the area.
IAHS Medical Journal Vol 6(1), June 2023; 6-9
Cardiovascular Stress and Work Productivity among Brickfield Workers
Authors: Islam Sinthea , Jishan Tawfika Rahman , Yasmin Shoara , Thamima Ummay , Nazneen Afsana , Ameen Muhammad Syeeful , Sattar Shahria , Abbas Md Golam
Published: August 2024

Background: One of South-East Asia's oldest chaotic, labor-intensive informal sectors is the brickfield industry. Many individuals working in this sector; are illiterate, deprived, and backward. The brickfield workers were exposed to cardiovascular stress while doing different brick manufacturing operations. The aim of the study is to assess cardiovascular stress and work productivity of the 284 brick field workers.
Materials and methods: A cross-sectional study was carried of on the 284 workers working in brickfields of Faridpur sadar, Faridpur, Bangladesh from January 2022 to December 2022. The Cardiac Stress Index (CSI) was used for measuring stress and work productivity was measured by semi structured questionnaire.
Results: The mean age of the 284 workers was 38.1±9.5 years. The mean average family income was 12,919.0±2,111.0 taka. One out of three workers (35.2%) had above normal CSI. CSI was significantly associated with worker's average monthly family income (p=0.001) and was above normal among the workers who had monthly family income >15,000 takas (61.3%). CSI was also significantly associated with the working station, working hours, resting hours, and duration of working hours by brick carrier in a day (p<0.05). CSI was above normal among the workers who were working as a brick carrier (55.0%), working >6 hours daily (41.1%), taking rest >1 hour (59.3%), and working >6 hours as a brick carrier daily (64.8%).
Conclusion: This study might be helpful for brick-field workers to increase their working productivity and also help to reduce the risk of the cardiovascular event during working environments.
IAHS Medical Journal Vol 6(1), June 2023; 15-19
PENGEMBANGAN MEDIA PEMBELAJARAN REFU BERBASIS ANDROID
Authors: Hindom Sukarni , Sahidi Sahidi , Sumadi Suhartini
Published: August 2024

Media pembelajaran pada umumnya adalah perangkat bantu dalam proses pendidik. Disamping itu, media pembelajaran adalah elemen yang dapat mengontrol pikiran, dan mengarahkan perhatian siswa serta meningkatkan kemampuan dan keahlian siswa, media dapat memfasilitasi pada berlangsungnya pembelajaran dikelas. Dengan menggunakan Refu, siswa dengan mudah memahami dan lebih aktif dalam proses pembelajaran melalu tayangan dan tampilan yang menarik yang dibuat oleh peneliti dengan tujuan untuk mempermudah siswa dalam proses belajar dan juga memberikan fleksibilitas karena dapat dijangkau setiap saat, di tempat mana saja, dan dalam berbagai kondisi.  Penelitian ini dijalankan untuk mengevaluasi efektivitas, kemudahan penggunaan, dan keabsahan dari alar bantu pembelajaran Refu yang berbasis android. Jenis yang digunakan dalam penelitian ini adalah research and development (RD). Teknik pengumpulan data yang diterapkan adalah kuesioner dan uji. Diperoleh dan disimpulkan pada penelitian ini dari produk yang dikembangkan dikatakan berhasil karena peserta didik memiliki presentasi hasil belajar mencapai 52%. Berdasarkan perhitungan analisis kegunaan didasarkan pada hasil angket pengerjaan peserta didik bahwa skor yang didapatkan 75% yang berarti bahwa pembelajaran yang digunakan dikatakan mudah digunakan. Dari perhitung keabsahan didasarkan pada hasil perhitungan dari kedua validator menurut Gregory dikatakan sah dengan skor 80%.
PENGEMBANGAN MEDIA PEMBELAJARAN MENGGUNAKAN ARTICULATE STORYLINE PADA MATERI PECAHAN SEDERHANA UNTUK KELAS III SEKOLAH DASAR
Authors: Sari Dini Ramadhania , Fuadiah Nyiayu Fahriza , Surmilasari Nora
Published: August 2024

Penelitian ini bertujuan untuk mengembangkan media pembelajaran interaktif pada materi pecahan sederhana menggunakan articulate storyline kelas III yang valid, praktis, dan efektif. Pada penelitian ini menggunakan model 4-D dengan tahapan yaitu (1) Define (pendefinisian) (2) Design (perancangan) (3) Develop (pengembangan) (4) Dessiminate (penyebaran). Penelitian dilaksanakan di SD Negeri 18 Makarti Jaya. Sampel dalam penelitian ini adalah siswa kelas III sekolah dasar. Pengumpulan data dilakukan dengan instrumen penilaian validasi media pembelajaran, instrumen penilaian kepraktisan (guru), instrumen penilaian kepraktisan (peserta didik), dan data hasil tes soal peserta didik. Hasil penelitian menunjukkan bahwa media pembelajaran interaktif yang dikembangkan mendapatkan presentase 93% dengan kategori “sangat valid”. Hasil penilaian kepraktisan guru mendapatakan 95% dengan kategori “sangat praktis”. Hasil uji coba kelompok kecil mendapatkan presentase 92% dengan kategori “sangat praktis”. Hasil tes soal peserta didik mendapatkan presentase 86% dengan kategori “sangat efektif”. Sehingga dapat disimpulkan bahwa media pembelajaran interaktif materi pecahan sederhana kelas III sekolah dasar termasuk ke dalam media pembelajaran yang valid, praktis, dan efektif.
PENINGKATAN MOTIVASI DAN HASIL BELAJAR DENGAN STRATEGI CONTEXTUAL TEACHING AND LEARNING (CTL) PADA PERSAMAAN LINEAR SATU VARIABEL
Authors: Raharjo Srigati Indro , Cipta Dyah Ayu Sulistyaning , Rachmawati Rachmawati
Published: August 2024

Penelitian ini bertujuan untuk meningkatkan motivasi dan hasil belajar siswa dengan menggunakan strategi Contextual Teaching and Learning (CTL). Penelitian ini termasuk dalam penelitian tindakan kelas dan dilakukan perbaikan terhadap proses pembelajaran secara terus menerus selama penelitian. Subjek dari penelitian ini adalah siswa kelas VII mata pelajaran matematika SMPN 1 Tongas pada bab Persamaan Linier satu Variabel yang berjumlah 25 siswa. Pengumpulan data dilakukan melalui lembar angket siswa, catatan lapangan dan tes hasil belajar. Analisis data dilakukan secara deskriptif kualitatif melalui tahap reduksi data, triangulasi dan display data. Berdasarkan hasil penelitian dapat disimpulkan bahwa dengan strategi CTL dapat meningkatkan motivasi dan hasil belajar siswa dalam pembelajaran di kelas. Angket motivasi belajar siswa menunjukkan adanya peningkatan pada kedua siklus yaitu sebesar 54,97 % pada siklus pertama menjadi 66,31 % pada siklus kedua. Ketuntasan hasil belajar siswa dengan menggunakan strategi CTL mengalami peningkatan yang cukup signifikan dari 24,32 % pada siklus pertama menjadi 70,27 % di siklus kedua.
PENGEMBANGAN BUKU SAKU MATEMATIKA BERBASIS AUGMENTED REALITY MENGGUNAKAN PJBL UNTUK MENINGKATKAN KEMAMPUAN LITERASI MATEMATIS
Authors: Islamiya Imamatul , Iriani Dewi , Novferma Novferma
Published: August 2024

Indonesia selalu menjadi peserta dalam setiap survei yang dilakukan oleh pisa mengenai literasi matematika. Peserta didik Indonesia masih memiliki kemampuan literasi matematis yang rendah. Berdasarkan hasil PISA 2015 indonesia termasuk dalam 10 negara yang memiliki kemampuan literasi matematis. Solusi yang dilakukan untuk mengatasi rendahnya kemampuan literasi matematis peserta didik adalah dengan penggunaan media pembelajaran dengan menggunakan model pembelajaran yang mampu merangsang peserta didik dalam memahami pelajaran matematika. Penelitian ini bertujuan untuk mengetahui kualitas buku saku matematika berbasis augmented reality menggunakan project based learning untuk meningkatkan kemampuan literasi matematis siswa yang dilihat dari kevalidan. Kepraktisan dan keefektifan. Penelitian ini menggunakan metode RD dengan model pengembangan ADDIE (analysis, design, development, implementation and evaluation). Hasil pengembangan menunjukkan hasil validasi desain yaitu 88,23% (Sangat Valid), hasil validasi materi yaitu 83% (Sangat Valid), hasil praktikalitas oleh guru yaitu 93,33% (Sangat Praktis), hasil praktikalitas oleh siswa yaitu 82,39% (Sangat Praktis), hasil angket respon siswa yaitu 86% (Sangat Efektif), dan hasil nilai gain pada peningkatan kemampuan literasi matematis 0,75 kategori (Sangat Efektif). Berdasarkan hasil penelitian didapatkan bahwa buku saku matematika berbasis augmented reality menggunakan project based learning untuk meningkatkan kemampuan literasi matematis siswa layak diterapkan dalam kegiatan pembelajaran karena sudah memenuhi syarat valid, praktis dan efektif.
PENGEMBANGAN E-MODUL INTERAKTIF BERBASIS STEAM MATERI PLSV UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA
Authors: Setyaningrum Dinda Ayu , Sabil Husni , Kumalasari Ade
Published: August 2024

Penelitian ini merupakan jenis penelitian pengembangan yang bertujuan untuk: a) menghasilkan e-modul interaktif berbasis STEAM untuk meningkatkan kemampuan pemecahan masalah matematis siswa, dan b) mendeskripsikan kualitas e-modul interaktif berbasis STEAM untuk meningkatkan kemampuan pemecahan masalah matematis siswa. Metode penelitian yang digunakan adalah metode penelitian dan pengembangan. Model pengembangan yang digunakan menggunakan model ADDIE (analysis, design, development, implementation, evaluation). Penelitian ini dilaksanakan di MTs Laboratorium Kota Jambi. Objek penelitian ini adalah E-Modul Interaktif Berbasis STEAM Materi PLSV. Teknik pengumpulan data pada penelitian ini menggunakan observasi, wawancara, angket, dan dokumentasi. Teknik analisis data yang dilakukan dengan melakukan uji validitas (validasi materi dan validasi desain), praktikalitas (uji perorangan dan uji kelompok kecil), dan efektivitas (respon siswa dan hasil tes kemampuan pemecahan masalah matematis siswa). Subjek dari penelitian ini adalah siswa kelas VIIA MTs Laboratorium Kota Jambi. Hasil penelitian ini adalah produk berupa E-Modul Interaktif Berbasis STEAM Materi PLSV dengan hasil uji validitas pada validasi materi 81% (sangat valid) dan validasi desain 85% (sangat valid), hasil uji praktikalitas pada praktikalitas perorangan 92% (sangat praktis) dan praktikalitas kelompok kecil 85,4% (sangat praktis), serta uji efektivitas pada respon siswa 83,7 (sangat efektif) dan hasil tes kemampuan pemecahan masalah matematis siswa 66,81% (cukup efektif).
PERBANDINGAN MODEL PEMBELAJARAN PROBLEM POSING DENGAN PEMBELAJARAN KONVENSIONAL TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS VIII
Authors: Dewi Ayu Kusuma , Ayuwanti Irma , Setyawati Astri
Published: August 2024

Tujuan dari penelitian ini yaitu untuk mengetahui perbedaan hasil belajar matematika siswa yang menggunakan model pembelajaran problem posing dengan siswa yang menggunakan pembelajaran konvensional pada materi bangun ruang sisi datar di kelas VIII SMP Islam Purbolinggo. Penelitian ini merupakan penelitian kuantitatif dengan desain penelitian quasi experiment serta menggunakan pendekatan posttest only control design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII yang berjumlah 46 siswa yang terdiri dari dua kelas. Teknik pengambilan sampel yang digunakan yaitu sampling total.  Kelas VIII A sebagai kelas kontrol dengan jumlah 23 siswa dan kelas VIII B sebagai kelas eksperimen dengan jumlah 23 siswa. Instrumen penelitian dalam penelitian ini adalah dokumentasi dan tes. Teknik analisis data yang digunakan meliputi uji normalitas, uji homogenitas dan uji t. Berdasarkan hasil uji hipotesis postest menggunakan uji t yang menyatakan bahwa nilai thitung ttabel, dimana nilai thitung sebesar 2,125 dengan ꭤ =0,05 derajat kebebasan (dk) = 23+23-2 = 44, dan nilai ttabel sebesar 2,015. Artinya H0 ditolak dan Ha diterima. Berdasar hasil tersebut maka kesimpulan dalam penelitian ini adalah terdapat perbedaan hasil belajar matematika siswa yang menggunakan model pembelajaran problem posing dengan siswa yang menggunakan pembelajaran konvensional pada materi bangun ruang sisi datar siswa kelas VIII SMP Islam Purbolinggo.
Ethnomathematics Exploration on Calculation of Holy and Purifying Water Tubs at Raudlatul Ulum Islamic Boarding School
Authors: Septia Tika , Shofiya
Published: August 2024

Mathematics and culture are things you can only do in your everyday life. There is a connection between mathematics and culture, com-monly called ethnomathematics. Many people need to understand that culture is a fundamental concept of mathematics to apply ethno-mathematics. The purpose of this research is to evaluate and also analyse in different ways the mathematical elements that occur naturally in the water tank building of the Raudhatul Ulum Islamic Boarding School, which is very important according to the mathe-matical aspects contained in the building. The results of this study indicate that the activities of the santri cannot be separated from washing clothes and even cleaning the body, as well as purification, which cannot be separated from the principles taught in Islamic scriptures (fiqh). This situation requires the construction of water tanks in Islamic boarding schools to be significant because the number of students in Islamic boarding schools is small but significant, and the water supply must be adequate according to Islamic religious law
Arap Anlam Biliminin Temellendirilmesinde Kadîm Dilcilerin Rolü: Câhiz Örneği
Authors: Duran Gürbüz Sultan
Published: August 2024

Anlam bilimi, mânanın mahiyeti ve işlevini ele almaktadır. Temelleri M.Ö. 10. yüzyıla kadar uzanan bu disiplin, terorik olarak 19. yüzyılda ortaya çıkmıştır. Bilindiği üzere Arap coğrafyasında dil bilimleriyle ilgili çalışmalar 8. yüzyılda dikkat çekmeye başlamıştır. Bu çalışmalar aynı zamanda Arap anlam bilimine de dolaylı yoldan katkı sağlamıştır. Arap anlam biliminin müstakil bir disiplin haline gelmesinde büyük role sahip olan kadîm dilciler Halil b. Ahmed el-Ferâhîdî, Ebû Osmân el-Câhiz, İbn Cinnî, Abdülkâhir el-Cürcânî ve Celâleddîn es-Suyûtî'dir. Bu çalışmada Câhiz’in anlam biliminin temellendirilmesine ne gibi katkılarının olduğu konu edilmiştir. Câhiz’in söz konusu dil bilim sahasına dair görüşleri, onun el-Beyân ve't-Tebyîn ile Kitâbü'l-Hayevân adlı iki eseri özelinde ele alınacaktır. Böylece Câhiz’in anlam bilimine dahil olabilecek görüşleri, belirli bir sistematik içinde değerlendirilecek, onun dil anlayışının modern semantik kuramların temellendirilmesindeki yeri ve önemi anlaşılmış olacaktır. Çalışmada Câhiz'in anlam bilimine dair görüşleri durgun ve gelişmeli anlam bilimi başlıkları altında ele alınacaktır. Câhiz’da beyâna yani mânaya delâlet eden unsurlar, durgun anlam biliminin konularıdır. Câhiz mânaya götüren bu unsurları lafız, işaret, akd (hesap), hat (yazı) ve hâl (nısbe) şeklinde beş taksime ayırmıştır. Câhiliye dönemiyle İslâmi dönem ve sonrasında meydana gelen mâna değişimi ve gelişimini ele aldığı kısımlar ise gelişmeli anlam biliminin konularıdır. Bu konular anlam değişimi, eş anlamlılık, mecâz, kinâye, çok anlamlılık, bazı özel ve cins isimlerine verilen adların hangi mânalardan hareketle gerçekleştiği şeklinde sıralanabilir. Son olarak bu çalışmayla anlam biliminin literatürde bir bilgi sistemi haline dönüşmeden de kadîm dilcilerden olan Câhiz’in dil anlayışında yer aldığı, onun tarafından araştırma ve incelemeye konu edildiği tespitine ulaşılacaktır.
A novel kit for enrichment of fecal helminth eggs
Authors: Lee Eunsol , Back Seon-Ok , Lee Young-Ju , Ju Jung-Won , Lee Hee-Il , Lee Myoung-Ro
Published: August 2024

We developed a new concentration kit, called the ParaEgg (PE), for easy detection trematode eggs from fecal samples in endemic areas of clonorchiasis and metagonimiasis in Korea. To create a standard of detection efficiency, 120 fecal samples were examined using the water–ether concentration method (WECM). The PE kit and Mini ParaSep (PS) kit were used to compare the detection sensitivity of 100 egg-positive and 20 egg-negative samples in WECM. Additionally, stool samples, which were intentionally spiked with 10, 20, and 30 Clonorchis sinensis eggs, were evaluated to assess the sensitivity in lowinfection cases. The PE and PS kits showed detection rates of 100% and 92%, respectively, from 100 egg-positive samples in WECM. Meanwhile, eggs were detected in 3 (PE) and 2 (PS) out of 20 egg-negative samples in WECM. The PE kit detected the highest number of eggs per gram of feces (727 on average), followed by the WECM (524) and PS kit (432). In fecal samples that were intentionally spiked with 10, 20, and 30 C. sinensis eggs, PE only detected eggs 2 out of 5 samples in 10 eggs spiked (40%), and the detection rates were 80% and 100%, respectively. The PE kit enabled a more accurate identification of trematode eggs because of the clearance of small fecal debris in the microscopic field. In conclusion, the PE kit is obviously helpful to detect and identify trematode eggs in stool examinations especially in endemic areas of clonorchiasis and metagonimiasis.
Dynamin 2-mediated endocytosis of BLT1 is required for IL-8 production in HMC-1 cells induced by Trichomonas vaginalis-derived secretory products
Authors: Lee Young Ah , Shin Myeong Heon
Published: August 2024

We previously reported that leukotriene B4 (LTB4) contained in Trichomonas vaginalis-derived secretory products (TvSP) play an essential role in interleukin-8 (IL-8) production in human mast cell line (HMC-1 cells) via LTB4 receptor (BLT)-mediated Nuclear Factor-kappa B (NF-кB) activation. Dynamin, a GTPase, has been known to be involved in endocytosis of receptors for signaling of production of cytokine or chemokines. In the present study, we investigated the role of dynamin-mediated BLT1 endocytosis in TvSP-induced IL-8 production. When HMC-1 cells were transfected with BLT1 or BLT2 siRNA, TvSP-induced IL-8 production was significantly inhibited compared with that in cells transfected with control siRNA. In addition, pretreatment of HMC-1 cells with a dynamin inhibitor (Dynasore) reduced IL-8 production induced by TvSP or LTB4. TvSP- or LTB4- induced phosphorylation of NF-кB was also attenuated by pretreatment with Dynasore. After exposing HMC-1 cells to TvSP or LTB4, BLT1 was translocated from the intracellular compartments to the plasma membrane within 30 min. At 60 min after stimulation with TvSP or LTB4, BLT1 remigrated from the cell surface to intracellular areas. Pretreatment of HMC-1 cells with dynamin-2 siRNA blocked internalization of BLT1 induced by TvSP or LTB4. Co-immunoprecipitation experiments revealed that dynamin-2 strongly interacted with BLT1 60 min after stimulation with TvSP or LTB4. These results suggest that T. vaginalis-secreted LTB4 induces IL-8 production in HMC-1 cells via dynamin 2-mediated endocytosis of BLT1 and phosphorylation of NF-кB.
Butenedioic Acid of Soursop Leaves (Annona muricata) Water Extract as Dipeptidyl-peptidase 4 (DPP4) Inhibitor
Authors: Sri Damayanti Dini , Nurdiana Nurdiana , Kusuma HMS. Chandra , Wahono Soeadmadji Djoko
Published: August 2024

The aim of the study was to prove the potential of Soursop Leaves Water Extract (SLWE) content as DPP4 inhibitor an in silico method. The extraction process of soursop leaves uses water solvent with the infusion method. Withdrawal of the active compounds using acetone solvent. Identification using the GCMS method. Molecular docking of SLWE active compounds, Linagliptin as a control and DPP4 protein targetÂ  using Â Autodoc Vina application. 2D visualization using LigPlot. Validation of affinity of active compounds of Annona muricata LeavesÂ  using the measurement results of free binding energy, the numberÂ  similarity of bond position to active site otÂ  the protein target, and the number of hydrogen bond compared to controls. To determine the potential effect as a drug and toxicity using the 5 rules of Lipinski and ADME. The results of molecular docking found that the active SLWE compounds that have affinity close to control is butenedioic acid. It has the âˆ†G ofÂ  -7 kcal / mol, binds 53% of amino acid residues of DPP4 and has one hydrogen bond. Based on 5th rules of Lipinski and ADMET, Buetenoic acid has the potential to be developed as DPP4 inhibitor drugs which is administered orally and had a non-toxic effect. The the Conclusion Butenedioic acid, the active compound found from SLWE is potential as DPP4 inhibitors.
Non-Pharmacological Therapy For Adolescent Depression: Literature Review
Authors: Indra Maulana  , Hesti Hesti Platini
Published: August 2024

ABSTRACT
Introduction: Adolescence is a period of transition between childhood and adulthood, characterized by biological, cognitive, and socio-emotional changes. Most adolescents have behaved more maturely as they have become aware of a new formal status, either at home or at school. Adolescents are at risk for depressive disorders due to their inability to deal with stress or pressure. To alleviate depression symptoms, pharmacological and non-pharmacological therapies can be used. The goal of this study was to conduct a literature review on non-pharmacological therapies for treating depression in adolescents. Methods: A literature review with the keywords "Teenagers," "Depression," and "Therapy" was used as the research method. Several search engines were used to find articles, including Google Scholar, PubMed, and Science Direct. which were published between 2016 and 2020. Article searches turned up 29,982 results. Following the evaluation, the remaining six articles were chosen for a literature review. Results and Discussion : Six non-pharmacological therapies were discovered to treat depression in adolescents based on a literature review. Music therapy, life writing therapy, bright light therapy, exercise, and behavioral health interventions, such as cognitive behavioral therapy and assertive training, can all be used. Conclusion: Music therapy, life writing therapy, bright light therapy, exercise, and behavioral health interventions, such as cognitive behavioral therapy and assertive training, are all effective treatments for depression. 
Keyword:Depression, Teenagers, Therapy
Analisis Kesulitan Membaca Permulaan Pada Kelas II di SD 3 Padurenan
Authors: Sari Erma Novita , Kusumaningrum Erliana Vivi , Riswari Lovika Ardana
Published: August 2024

Focus of this research is on the initial reading difficulties experienced by class II students at SD 3 Padurenan. The main aim of this research is to find out what difficulties are experienced by class II students at SD 3 Padurenan. This research uses a qualitative approach with descriptive analysis methods. The subjects in this research were 5 students class II at SD 3 Padurenan who had difficulty reading at first. Data collection techniques in this research are observation, interviews and documentation. The results of the research showed that students in class II had difficulty distinguishing letters that were almost the same in shape, difficulty reading combinations of consonant letters, and difficulty reading consonant letters ending in vowels. Difficulties that can hinder beginning reading are, not having interest in beginning reading which is still low, students' motivation in beginning reading is also low, there is a lack of parental attention regarding students' beginning reading learning activities, and students having too many play activities so that students' learning to read becomes neglected. So, it can be concluded that class II students at SD 3 Padurenan have difficulty reading at the beginning. The hope of this research can be an evaluation in overcoming students' initial reading difficulties.
Hasil Belajar IPA Materi Magnet Melalui Penerapan Model Pembelajaran Problem Based Learning Berbantuan Media KIT IPA dan Komik Digital
Authors: Sulistiyarini Ambar
Published: August 2024

The aim of this research is to improve science learning outcomes with magnetic material through the application of the Problem Based Learning learning model assisted by KIT Science and Digital Comics media for class VI students at SDN Kahuman. This research is a qualitative research. This research was carried out at SDN Kahuman Class VI with a total of 37 students. Data collection techniques in this research are observation, tests, and documentation. The data analysis technique used is interactive analysis, namely data reduction, data presentation, and conclusion. The research results show that the application of the problem based learning model with the help of digital comic media and Science KIT can improve student learning outcomes with 30 students getting scores above the KKM.
Pemahaman Ilmu Tajwid terhadap Kemampuan Membaca Al-Qur’an di Pondok Pesantren Al-Falah Sumberadi Kebumen
Authors: Apriyanti Puput , Eliyanto Eliyanto
Published: August 2024

This research is motivated by the importance of understanding the science of recitation on the ability to read the Koran in students. In this regard, this study aims to determine the understanding of the science of recitation, determine the ability to read the Koran, and know the methods of learning recitation. This research is a qualitative research. data collection through interviews, observation, and documentation. data analysis techniques include data reduction, data presentation, and drawing conclusions. his research resulted in three conclusions, namely: (1)The understanding of tajwid science by female students of the sifir class and 1 ibtida of the Al-Falah Islamic Boarding School Sumberadi Kebumen is good. It's not all, but on average already understand everything. After the oral test was carried out on female students in the sifir and 1 ibtida classes, there were some students who still mistakenly stated the law of reading recitation, and there were those who said wrongly the letters included in the law of reading. However, even though there are still mistakes, on average the female students of the sifir and 1 ibtida classes understand everything. (2) The ability to read the Al-Qurán for female students of the sifir class and 1 ibtida of Al-Falah Islamic Boarding School Sumberadi Kebumen is on average all fluent. The problem is that there are some students who already know the law of recitation but do not apply it when reading the Al-Qur'an, there are also students who read it in a hurry, even though reading the Al-Qur'an properly and correctly is not judged by how fast it is, but whether it is appropriate or not when read the Al-Qur'an with the rules of tajwid science. (3) The methods used in learning tajwid science at the Al-Falah Islamic Boarding School Sumberadi Kebumen are the lecture method, the discussion method, and the sorogan method. The lecture method is the delivery of material by the teacher orally to the students. The discussion method is the method in which the students discuss what is ordered by the teacher, such as looking for reading laws in a letter. The sorogan method is where the students come forward one by one reading the Qur'an to the teacher by applying the science of recitation. If wrong immediately corrected by the teacher.