bluuebunny/crossref_metadata_2025 huggingface dataset:
Теоретические и экспериментальные исследования процесса растяжения прямого стержня из эластомера (резины)
Authors:   ФГБОУ ВО «Казанский национальный исследовательский технический университет им. А.Н. Туполева», г. Казань, Россия, Паймушин В.Н. ,   ФГБОУ ВО «Казанский (Приволжский) федеральный университет», Холмогоров С.А. ,   ФГБОУ ВО «Казанский национальный исследовательский технический университет им. А.Н. Туполева», г. Казань, Россия,   ФГБОУ ВО «Казанский (Приволжский) федеральный университет», Якубовский К.К. ,   ФГБОУ ВО «Казанский национальный исследовательский технический университет им. А.Н. Туполева», г. Казань, Россия
Published: February 2025

Проведены теоретические и экспериментальные исследования на растяжение стержня прямоугольного поперечного сечения из эластомерного материала, сопровождающиеся формированием однородного напряженно-деформированного состояния. В предположении о том, что истинные осевые деформации в поперечных направлениях пропорциональны истинной осевой деформации в продольном направлении, исходя из геометрической картины деформирования путем введения в рассмотрение двух коэффициентов Пуассона для трансверсально-изотропного материала, получены точные аналитические зависимости, связывающие между собой фиксируемое в экспериментах условное (номинальное) нормальное напряжение с вычисляемым истинным нормальным напряжением в поперечном сечении стержня, замеряемую в экспериментах истинную осевую деформацию с вычисляемой объемной деформацией и истинными мерами сдвиговых деформаций в осях, повернутых на 45 градусов. Проведены экспериментальные исследования на растяжение образцов из листовой технической резины и проведена обработка экспериментальных результатов на основе полученных аналитических зависимостей, справедливых при конечных деформациях. Установлено, что даже при немалых кратностях удлинений истинное нормальное напряжение в поперечном сечении образца с истинной осевой деформацией допустимо связать соотношением упругости, подчиняющимся линейному закону Гука, в котором входящие коэффициенты Пуассона нелинейным образом зависят от истинной осевой деформации. С такой же степенью точности аналогичные линейные зависимости имеют место между истинными касательными напряжениями в повернутых осях с соответствующими мерами истинных сдвиговых деформаций. Изучена возможность реализации явления неустойчивости процесса растяжения образцов из рассматриваемой технической резины.
Влияние ионизирующего излучения на полимерные композиционные материалы
Authors:   Пермский национальный исследовательский политехнический университет, г. Пермь, Россия, Бочкарев С.В. , Кудрявцев В.В. ,   Пермский национальный исследовательский политехнический университет, г. Пермь, Россия
Published: February 2025

Исследуются полимерные композиционные материалы (ПКМ) на основе эпоксидных связующих ЭД-20, ЭДТ-10П, УП 2127А, ЭЦТ-1 термического отверждения с целью определения их радиационной стойкости и для изучения возможности использования облучения с целью регулирования физико-механических свойств. Облучение проводилось на ускорителе электронов ЭлТ-1,5А с энергией электронов 1,1 и 1,3 МэВ при токе пучка 5 и 7 мА, что обеспечивало мощность дозы 1,5 и 2,3 кГр/с соответственно. Облучение проводилось перемещением образцов на транспортере со скоростью 0,02 м/с под окном ускорителя. Исследуются физико-механические свойства ПКМ термического отверждения после облучения дозами до 10 МГр. Термостойкость оценивалась с помощью термографического анализа по температуре начала разложения; температуре начала реакции термодеструкции, энергии активации. Облучение показало, что появляются два экзотермических пика. Первый экзотермический пик характеризует интенсивное взаимодействие эпоксидных групп с аминами, второй - свидетельствует о протекании реакции между эпоксидными и образующимися вторичными гидроксильными группами. Это обусловливает образование дополнительных химических связей в полимере и, как следствие, повышение механической прочности. Степень завершенности процессов, происходящих под действием ионизирующего излучения, оценивали по интегральной теплоте термического разложения. Показано, что при малых дозах облучения до 1 МГр происходит ее уменьшение, что указывает на рост числа двойных связей, т.е. на дополнительное отверждение под действием облучения. Испытания кольцевых образцов ПКМ с использованием армирующих материалов ВМН-4, ВМС-8, РВМН, СВМ показало, что в диапазоне доз 1-2 МГр наблюдается дополнительное структурирование (образуются дополнительные поперечные связи за счет возникновения реакционноспособных групп), максимальное значение которого сдвинуто в сторону меньших доз облучения. В результате увеличивается плотность пространственной сетки, снижается уровень внутренних напряжений, увеличивается структурная однородность связующего, что ведет к повышению термостойкости материала.
Сверхпрочные волокна как перспективный материал для создания тросов наземно-космического применения
Authors:   ФГБУН Институт прикладной механики РАН, г. Москва, Келбышева Е.С. , Данилин А.Н. ,   ФГБУН Институт прикладной механики РАН, Москва, Россия, Фельдштейн В.А. ,   ФГБУН Институт прикладной механики РАН, г. Москва,   Московский физико-технический институт (национальный исследовательский университет), г. Долгопрудный, Россия
Published: February 2025

К настоящему времени композитные материалы приобрели большую популярность в технике и строительстве благодаря их уникальным свойствам, которые можно оптимизировать на стадиях разработки и проектирования. Без их использования уже не представляется возможным создание перспективных летательных аппаратов, судов, автомобилей, машин различного назначения. Применение композитов позволяет существенно снизить вес конструкций, сохраняя и улучшая их прочностные и другие эксплуатационные характеристики по сравнению с их аналогами из традиционных материалов: металлов, пластмасс, полимеров, стекла, керамики. Изделия из композитных материалов могут быть приспособлены к эксплуатации в экстремальных наземных и космических условиях. К таким изделиям относится «космический лифт» - гипотетическая система астрономического масштаба для безракетного вывода спутников на орбиту Земли и в открытый космос. Интерес исследователей к этой идее не ослабевает, охватывая различные инженерные и экономические аспекты. Конструкция основана на применении троса, удерживаемого одним концом на поверхности Земли, другим - в неподвижной относительно планеты точке выше геостационарной орбиты. От троса требуется чрезвычайно большая прочность на разрыв в сочетании с низкой плотностью. В данном обзоре будут рассмотрены основные высокопрочные материалы и будут сделаны выводы о возможности использования этих материалов для создания высокопрочных тросов для систем наземно-космического применения.
Механические свойства эластомерных композитов, наполненных частицами на основе диоксида кремния и углерода, для применения в качестве элементов конструкций гасителей колебаний
Authors:   ФГБУН Институт прикладной механики РАН, г. Москва, Корнев Ю.В. , Гилязова Р.Ф. ,   ФГБУН Институт прикладной механики РАН, Москва, Россия, Муромцев Д.Н. ,   ФГБУН Институт прикладной механики РАН, г. Москва, Карнет Ю.Н. ,   ФГБУН Институт прикладной механики РАН, г. Москва
Published: February 2025

Исследование направлено на решение проблемы обеспечения долговременной работоспособности изделий из эластомерных композитов, которые применяются в составе гасителей колебаний в различных конструкциях. Отличительной особенностью эластомерных композитов являются высокие обратимые деформации при малых нагрузках и хорошие диссипативные свойства, которые обеспечивают данному классу материалов восприимчивость к воздействию колебаний. В настоящей работе было проведено экспериментальное исследование механических свойств эластомерных композитов, разработанных для применения в качестве элементов конструкций гасителей колебаний. А также представлены результаты ускоренных испытаний по исследованию влияния ультрафиолетового (УФ) излучения на микромеханические характеристики эластомерных композитов на основе смеси бутилкаучука (БК) и этилен-пропиленового каучука (СКЭПТ), наполненных техуглеродом П-324 с добавлением частиц породы шунгит различной дисперсности. Исследовались также ненаполненные составы на основе СКЭПТ с целью оценки ползучести при наноиндентировании до и после процесса УФ-облучения. Образцы выдерживались под УФ лампой до 12 недель. Изменение структуры поверхности образцов эластомерных композитов до и после УФ-облучения контролировалось с помощью оптического микроскопа. Разработаны эластомерные композиты для применения в составе конструкций гасителей колебаний ЛЭП. Установлено, что требуемый комплекс механических характеристик данных материалов достигается за счёт применения в составе комбинации БК и СКЭПТ, а также добавления субмикрочастиц породы шунгит (5 об.%). Установлено, что воздействие УФ по-разному влияет на структуру поверхности и на микромеханические характеристики образцов в зависимости от состава. При изучении образцов эластомерных композитов на основе СКЭПТ установлено, что добавка микрочастиц породы шунгит увеличивает устойчивость данных композитов к воздействию УФ. Показано, что добавка (5 об.%) субмикрочастиц породы шунгит в составе эластомерных композитов на основе комбинации БК и СКЭПТ позволяет повысить относительный гистерезис данных материалов и при этом сохранить комплекс упруго-прочностных свойств. В экспериментах по наноиндентированию установлено, что ползучесть (Creеp-эффект) образцов эластомерных композитов меняется при воздействии УФ. Отмечается увеличение скорости и максимальной глубины индентирования при воздействии УФ на образцы. Получены коэффициенты для функции, описывающей изменение глубины индентирования (внедрения) во времени: до и после облучения образцов эластомерных композитов.
التفكير الانفعالي وعلاقته بالاحتراق النفسي لدى طلبة جامعة بغداد
Authors: هدى محمود كاظم  , سرور فائق عبد سلمان
Published: February 2025

يسعى البحث الحالي الى التعرف على التفكير الانفعالي وعلاقته بالاحتراق النفسي لدى طلبة الجامعة .ومن اجل تحقيق اهداف البحث الحالي فقد اعتمدت الدراسة على المنهج الوصفي الارتباطي من خلال عينة من طلبة الجامعة بلغت(200) طالب وطالبة وقد تم اعداد اداتا البحث الحالي(التفكير الانفعالي,الاحتراق النفسي) من اجل جمع البيانات والمعلومات بعد التحقق من خصائصهما السايكومترية المناسبة وبعد تطبيق الدراسة توصلنا الى النتائج التالية :

هنالك مستوى مرتفع من التفكير الانفعالي لدى طلبة الجامعة
هنالك مستوى منخفض من الاحتراق النفسي لدى طلبة الجامعة
هنالك علاقة ارتباط عكسية بين التفكير الانفعالي والاحتراق النفسي لدى طلبة الجامعة
عدم وجود فروق ذات دلالة احصائية (α= 0.05) في مستوى التفكير الانفعالي تعزى لاثر الجنس، حيث بلغت قيمة ف 2,585 وبدلالة احصائية بلغت 0,109.
فروق ذات دلالة احصائية (α= 0.05) في مستوى التفكير الانفعالي تعزى لإثر التخصص، حيث بلغت قيمة ف 4,079 وبدلالة احصائية بلغت 0,044، وجاءت الفروق لصالح التخصص الانساني.
وجود فروق ذات دلالة احصائية (α= 0.05) في مستوى التفكير الانفعالي تعزى لإثر المرحلة الدراسية، حيث بلغت قيمة ف 10,987 وبدلالة احصائية بلغت 0,001، وجاءت الفروق لصالح الرابع.
وجود فروق ذات دلالة احصائية (α= 0.05) في مستوى الاحتراق النفسي تعزى لاثر الجنس في جميع المجالات باستثناء نقص الشعور بالانجاز وجاءت الفروق لصالح الذكور.
وجود فروق ذات دلالة احصائية (α= 0.05) في مستوى الاحتراق النفسي تعزى لاثر التخصص في جميع المجالات وجاءت الفروق لصالح العلمي.
عدم وجود فروق ذات دلالة احصائية (α= 0.05) في مستوى الاحتراق النفسي تعزى لاثر المستوى التعليمي في جميع المجالات باستثناء نقص الشعور بالانجاز وجاءت الفروق لصالح الصف الاول.
Saudi EFL Students’ Perception towards the Use of Duolingo Application in Learning English
Authors: Rajeh Fayeh Abdan Althiyabi
Published: February 2025

This study aimed to investigate Saudi EFL students’ perceptions of using the Duolingo application as a tool for learning English. Employing a descriptive research design, the study gathered data from 163 student participants through structured questionnaires. The findings revealed that students generally held highly positive perceptions of the application’s features and its role in language learning. Specifically, a significant majority of participants find Duolingo easy to access on mobile devices and laptops (91.8%), and they report that the app’s features are user-friendly and facilitate interaction with other learners (82.3%). Additionally, most participants agree that Duolingo offers convenient, anytime, anywhere access for practicing English (83.7%). Duolingo was found to be highly effective for improving various English skills, with over 85% of participants acknowledging its usefulness for enhancing reading, writing, listening, and speaking abilities. Moreover, it supports vocabulary enrichment (83.7%) and offers opportunities for self-learning outside the classroom. A majority of participants also agreed that Duolingo encourages responsibility for self-learning, enhances motivation, and provides valuable opportunities for cross-cultural exchange and communication with teachers. However, the study also highlighted some challenges, such as the need for reliable devices and strong Wi-Fi connections, with 67.4% of participants recognizing that Duolingo requires specific electronic devices and skills. Additionally, some participants (over 30%) felt that Duolingo might be more expensive than traditional learning methods. Despite these challenges, most students found the app engaging and reported feeling motivated to use it for improving their English outside the classroom. Overall, the findings suggest that Duolingo is a beneficial and effective tool for language learning, offering flexibility, accessibility, and enhanced learner motivation, though it requires appropriate technology and internet resources for optimal use.
Efektivitas Pembelajaran Literasi Digital “Indonesian Fairy Tales” Melalui Metode Menyimak Terhadap Hasil Belajar Siswa
Authors: Silvia Anggraini  , Yasir Arafat  , Faipri Selegi Susanti
Published: February 2025

Penelitian ini bertujuan untuk mengetahui efektivitas pembelajaran literasi digital “indonesian fairy tales” melalui metode menyimak terhadap hasil belajar siswa. Jenis Penelitian menggunakan metode Kuantitatif dengan Pre-Exsperimental Design dengan tipe One Group Pretest-Psttest Design. Sedangkan untuk subjek penelitian ini adalah siswa kelas IV SD Negeri 17 Palembang yang berjumlah 30 siswa, metode pengumpulan data menggunakan observasi dan tes, instrumen tes berupa soal pilihan ganda yang berjumlah 10 soal dan soal essay berjumlah 5, untuk mengukur hasil belajar siswa teknik analisis data menggunakan Uji independent T-test.Berdasarkan analisis data, disimpulkan bahwa terdapat efektivitas pembelajaran literasi digital “indonesian fairy tales” melalui metode menyimak terhadap hasil belajar siswa.
Pengembangan Media Pembelajaran Kincir Misteri Berbasis Local Wisdom Sumatera Selatan Pada Mata Pelajaran IPAS Kelas IV di SD Negeri 223 Palembang
Authors: Desti Niwarni  , Lian Bukman , Aryaningrum Kiki
Published: February 2025

This study reviews the application of various innovative learning models in the context of 21st century education in Indonesia, with a focus on the application of Technological Pedagogical Content Knowledge (TPACK) and other cooperative learning methods. This study refers to the latest research (2020-2024) which examines the effectiveness of implementing TPACK in the Teacher Professional Education (PPG) program, Classroom Action Research (PTK) training oriented towards 21st century learning, as well as the use of creative digital learning media. like a webtoon comic. The method used in this research is a literature review study, by collecting and analyzing scientific articles related to the implementation of PTK in elementary schools.   The data collection technique used is analysis, which will later function to collect relevant data and sources in this research. The type of data used is qualitative, chosen because the method applied is a literature study. The results of this study show that the application of TPACK and other innovative learning methods has a positive impact in increasing teacher competence, student interest and involvement, as well as student learning outcomes. Technology-based learning models such as TPACK and Problem Based Learning (PBL) strategies combined with the Talking Stick method, have been proven to be able to improve students' critical thinking skills and activity in learning. This study concludes that collaboration between technology and pedagogy in learning has an important role in building an education system that is responsive to the demands and challenges of the digital era.
The Use of Peer Tutoring-Based LKPD in Cooperative Learning to Improve Student Learning Outcomes in Elementary Schools
Authors: Rafido Azuri  , Ujang Efendi  , Annisa Rahmah  , Adelia Mawarni  , Supriyadi  , Jody Setya Hermawan
Published: February 2025

The purpose of this study was to determine the effect of using Peer Tutoring-based LKPD on the learning outcomes of grade V students of Elementary School 3 Gedong Aer, Bandar Lampung City in the 2023/2024 academic year. This study is a quantitative study using Quasi Experimental Design and Pretest-Posttest Control Group Design. Data collection techniques in this study include interviews, observations, and tests of students' Indonesian language learning outcomes. The analysis techniques used are descriptive statistics and t-tests. Based on the results of the t-test on the increase in student learning outcomes 0.00 <0.005, and with an N-gain of 0.00, it meets the fairly effective category. So it can be concluded that Peer Tutoring-based LKPD can improve the Indonesian language learning outcomes of grade V students of Elementary School 3 Gedong Aer, Bandar Lampung City, so that students can be more active during learning by using Peer Tutoring-based LKPD on Indonesian language material, namely understanding Procedural Texts.
Studi Review dalam Meningkatkan Hasil Belajar di Sekolah Dasar dalam Sebuah Penelitian Tindakan Kelas
Authors: Lailatuz Zahroh  , Indryani  , Hadiyanyo
Published: February 2025

This research aims to review the influence of Classroom Action Research (PTK) on student learning outcomes at elementary school (SD) level. The method used in this research is a literature review study, by collecting and analyzing scientific articles related to the implementation of PTK in elementary schools.   The data collection technique used is analysis, which will later function to collect relevant data and sources in this research. The type of data used is qualitative, chosen because the method applied is a literature study. From analysis of various sources, it was found that the implementation of CAR had a significant impact in improving student learning outcomes. This method allows teachers to identify learning problems, plan improvements, and evaluate the effectiveness of teaching strategies implemented on an ongoing basis. This study combines six literature studies with a Systematic Literature Review (SLR) approach to examine the influence of the Card Sort, Problem-Based Learning (PBL), Jigsaw, Course Review Horay, and Guided Discovery learning methods on achieving learning outcomes. The results of the analysis show that interactive and collaborative methods, such as Card Sort, Jigsaw, and PBL, are able to increase student participation, understanding, and learning motivation. Meanwhile, the influence of social media on learning outcomes emphasizes the important role of parents and teachers in guiding the use of social media to remain productive. Overall, active and collaborative learning methods and improvements to improve the quality of learning at the basic level.
Peran Pendidikan Terhadap Pembentukan Sosial Siswa di Sekolah Dasar
Authors: Yuli Hana Puji Utami  , Tutuk Ningsih
Published: February 2025

Education plays an important role in shaping the character and social behavior of students, especially in elementary schools. The formation of students' sociality does not only occur through academic teaching, but also through social interactions at school, which involve relationships with peers, teachers, and the school environment as a whole. This article aims to analyze the role of education in the formation of students' sociality in elementary schools using the literature study method. This study examines various literature related to social education, school environment, and social interactions that support the development of students' character. The results of the study indicate that social education in schools has a significant role in developing students' social skills, such as empathy, cooperation, and responsibility. In addition, external factors such as support from family and community also contribute to the formation of students' sociality. The conclusion of this study confirms that education is not only aimed at improving students' academic abilities, but also at shaping students into individuals who are able to interact positively in society. The implication of this study is the need for close cooperation between schools, families, and communities to create an educational environment that supports the formation of students' sociality holistically, so that students can adapt well in diverse social environments.
Implementasi Technological Pedagogical and Content Knowledge (TPACK) dalam Penelitian Tindakan Kelas: Sebuah Studi Review
Authors: Ditami Ayu  , Hadiyanyo  , Indryani
Published: February 2025

This study reviews the application of various innovative learning models in the context of 21st century education in Indonesia, with a focus on the application of Technological Pedagogical Content Knowledge (TPACK) and other cooperative learning methods. This study refers to the latest research (2020-2024) which examines the effectiveness of implementing TPACK in the Teacher Professional Education (PPG) program, Classroom Action Research (PTK) training oriented towards 21st century learning, as well as the use of creative digital learning media. like a webtoon comic. The method used in this research is a literature review study, by collecting and analyzing scientific articles related to the implementation of PTK in elementary schools.   The data collection technique used is analysis, which will later function to collect relevant data and sources in this research. The type of data used is qualitative, chosen because the method applied is a literature study. The results of this study show that the application of TPACK and other innovative learning methods has a positive impact in increasing teacher competence, student interest and involvement, as well as student learning outcomes. Technology-based learning models such as TPACK and Problem Based Learning (PBL) strategies combined with the Talking Stick method, have been proven to be able to improve students' critical thinking skills and activity in learning. This study concludes that collaboration between technology and pedagogy in learning has an important role in building an education system that is responsive to the demands and challenges of the digital era.
Implementasi Model Make A Match untuk Meningkatkan Hasil Belajar IPA Siswa Kelas V SD Eka Tjipta Mandang Seruyan
Authors: Muryanto Deddy , Anjarwani Ratih
Published: February 2025

This research aims to determine the learning outcomes of the make a match type cooperative learning model on student learning outcomes on temperature and heat material in class V semester II of SD Eka Tjipta Mandang Seruyan. This research is classroom action research (PTK) with the research subjects being class V students at SD Eka Tjipta. Data collection techniques through science learning tests. The test consists of 10 multiple choice questions and 5 essay questions. Analysis is obtained through observation and tests. Based on the results of observations, it shows that out of 41 students, 24 students were still below the KKM in Class V SD Eka Tjipta Mandang Seruyan, 24 students were below the KKM with a class average score of 59.27.  The results of the research show that the make a match type cooperative learning model is effective in improving cycle 1 science learning outcomes, showing a student learning completion level of 68% with an average score of 70.61. In cycle 2, the level of completeness of student learning outcomes was 95% with an average score of 87.88. This research proves that the application of the make a match type cooperative learning model can improve science learning outcomes in class V at SD II Eka Tjipta Mandang Seruyan.
Penerapan Model Problem Based Learning Terhadap Partisipasi Siswa Di Tinjau Dari Kompetensi Pedagogik Guru
Authors: Riyadi Diva Dwi , Babang Robandi
Published: February 2025

This study aims to explore the implementation of the Problem-Based Learning (PBL) model in increasing student participation, as viewed from the pedagogical competence of teachers. Pedagogical competence is an essential element that determines the effectiveness of learning, including in the implementation of PBL, which requires the teacher’s ability to design, manage, and evaluate problem-based learning processes. This study uses a library research approach, referring to various academic literature such as books, scholarly journals, and relevant dissertations. Data were collected from various sources discussing learning strategies, research methodologies, and the implementation of PBL in the educational context. Data analysis was conducted using a content analysis approach, through the process of identifying patterns, themes, and relationships in the analyzed literature. The research findings indicate that good pedagogical competence allows teachers to create a collaborative learning environment, motivate students to think critically, and enhance their involvement in the learning process. Furthermore, effective implementation of PBL requires teachers’ skills in guiding students to solve problems independently, so that active student participation can be realized. This study concludes that improving teachers' pedagogical competence, especially in the context of PBL, has significant implications for the success of learning based on active participation. Therefore, teacher professional development through training and pedagogical competence development programs is an essential step to support the optimal implementation of PBL. This research is expected to serve as a reference for educators and policymakers in designing strategies to improve the quality of education through strengthening teachers' pedagogical competence.
Penerapan Model Problem based learning (PBL) dalam Meningkatkan Pemahaman Keluargaku Unik di Kelas II (Penelitian di MI Al Munawwar)
Authors: Rizal Ibrahim Aji  , Syamsurrijal  , Luthfi Ahmad Fadilah
Published: February 2025

The implementation of Problem-Based Learning (PBL) in second-grade elementary classrooms at MI Al Munawwar focuses on enhancing students' understanding of the topic Keluargaku Unik (My Unique Family). This learning approach aims to improve students' comprehension of descriptive texts, sentence construction, and self-expression through active and innovative participation. The research involved two classes, with one employing PBL and the other using traditional teaching methods. Conducted over two weeks, the study assessed students' understanding through pretests, posttests, and classroom observations. The results revealed that PBL significantly improved students' comprehension and engagement compared to traditional methods, with a noticeable increase in their ability to describe family uniqueness and construct coherent sentences. The students' positive responses and active participation demonstrate PBL's effectiveness in fostering critical thinking and meaningful learning experiences. This activity not only promotes academic achievement but also encourages collaborative and reflective learning, essential for holistic development.
PENGEMBANGAN MEDIA BOARD GAME “PACAROLI” PADA KETERAMPILAN MEMBACA PERMULAAN SISWA KELAS I DI SD MUHAMMADIYAH AIMAS
Authors: Yolanda Mamonto Tusi , Rahayu Desti , Apia Gika
Published: February 2025

This study aims to develop a learning media in the form of a board game called "PACAROLI" to improve the early reading skills of first grade students at SD Muhammadiyah Aimas, Sorong Regency. This study uses the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model. The results of the study indicate that the "PACAROLI" board game media is valid, practical, and effective to be used as a learning media. The validity of the media is proven by the average score from the experts of 96%. Practicality is measured through student responses, with more than 70% of students giving positive responses. The effectiveness of the media is shown through the results of the pre-test and post-test which showed a significant increase (p <0.05). Thus, the "PACAROLI" media can be an innovative solution in improving the reading skills of first grade students. The researcher provides suggestions to several parties in the world of education. For students who often do playing activities, it is expected that they can increase their knowledge through learning activities while playing. For teachers, so that they can sort and utilize learning media that are in accordance with student characteristics and can foster student interest in learning. For the principal, to be able to consider the use of learning media that are in accordance with the characteristics of students and the demands of today's education. For further researchers, it is expected to be able to develop products from this research that are in accordance with the development of the times, and consider the feasibility, effectiveness, and practicality of the media for further research.
Characteristics of factors affecting the sustainable development of agricultural enterprises
Authors: Nadvodnyuk O.
Published: February 2025

The article examines the factors that influence the sustainability of the agricultural enterprise, as well as approaches to determining the vector of their influence on achieving sustainability and developing practical recommendations for strengthening (weakening) their action. It is substantiated that ensuring the stable functioning of agricultural enterprises in conditions of martial law requires the search for new approaches to achieving sustainability. The author’s approach to interpreting the sustainable development of an enterprise involves its stable acquisition of a new quality, which is manifested in a balanced change in subsystems - economic, social, environmental, which ensure the achievement of sustainability based on the use of innovations. It is proven that the condition for achieving sustainability by the agricultural enterprise is the stability of its development, which is considered as a tool for ensuring sustainability. It is concluded that small and medium-sized agricultural enterprises do not have sufficient adaptive capabilities to the conditions of the external environment, which makes it difficult for them to achieve sustainability.
It is argued that the internal factors that influence the achievement of sustainability by the agricultural enterprise, unlike external ones, are subjective and most of them are subject to quantitative assessment. It is argued that the quality of the management process of an agricultural enterprise is one of the factors of the external environment that influences its achievement of sustainability. Indicators of management quality assessment are highlighted, which should be taken into account in the system of the most influential factors on the achievement of sustainability by an enterprise.
The internal social factors that influence the sustainability of an agricultural enterprise include the following: the level of quality of employees life, the level of social security, indicators of staff turnover, the qualitative structure of employees by education, age, etc. The most important environmental indicators for ensuring the sustainability of the agricultural enterprise are highlighted, among which are: compliance with crop rotation, rational use of fertilizers, protection of fields (plantations), maintenance of ecological and landscape systems of agriculture, alternative agricultural production, technologies for the use and disposal of by-products, etc. It is substantiated that the transition of an agricultural enterprise to the principles of sustainable development occurs provided that it achieves sustainable development and economic growth of the main resulting indicators.
Key words: sustainable development, agricultural enterprise, external factors, internal factors, sustainability, models of sustainable development, qualitative economic growth.
Development of partnership relations between business and government in the system of Ukraine sustainable energy security
Authors: Yakymchuk O.
Published: February 2025

The article substantiates the need to intensify the development of partnership relations between business and government in the direction of ensuring sustainable energy security of the country. Scientific research in the field of energy security by domestic scientists is systematized and conclusions are drawn about the need to combine the efforts of the state and business in ensuring energy security. The study was conducted on the basis of a systemic approach, using the method of dialectics, analysis and synthesis, induction and deduction. It is proved that the war in the country had a negative impact on energy security and led to an understanding the need to diversify sources of energy resources.
The practice of leading countries in the world in the development of renewable energy sources on the basis of adopted national programs is summarized. The tools for supporting Ukrainian business in the development of alternative energy sources, implementation of energy efficiency projects, which are insufficient to achieve the country's energy security, are highlighted.
The regulatory and legal support for Ukraine's energy policy and the directions of NPC Ukrenergo for their implementation in practice are revealed. The sources of energy resources in leading countries of the world and Ukraine are analyzed, which allowed us to conclude that they need to be diversified in domestic conditions. The author pays special attention to the development of such a source as geothermal energy.
The approaches of individual countries of the world that were under the conditions of military operations to ensure stable energy supply are presented: diversification of energy sources, creation of energy systems, introduction of energy saving measures and programs.
The implementation of energy saving measures under domestic conditions is proposed through education of the population, changes in educational programs in higher and vocational education institutions with the inclusion of educational components on resource and energy-saving technologies.
Key words: energy, security, public administration, energy consumption, sustainable development.
Methodological approaches to assessing the investment activity of the agricultural enterprise
Authors: Sandulskyi R.
Published: February 2025

In general, most methodological approaches to assessing the effectiveness of the enterprise’s investment activity, presented in the scientific literature, are reduced to calculating the efficiency indicators of the investment project, which is insufficient. The methodological principles for assessing the effectiveness of the investment activity of agricultural enterprises are highlighted, namely: cost, regulatory, market, resource, reproducible, systemic, point-rating, expert, strategic, risk-oriented, alternative approaches.
It is concluded that the above-mentioned approaches differ both in the areas and indicators of research, as well as in the system of principles and methods used in the analysis. It is substantiated that the assessment of the effectiveness of investment activities of agricultural enterprises should be considered as a system of principles and methods that make it possible to assess the effectiveness of resources use and financial investments in various areas of its activity, to assess both qualitative and quantitative aspects of investment.
It is argued that when developing a methodology for assessing the effectiveness of investment activities of agricultural enterprises, the following principles must be observed: complexity; correctness; adequacy; resource limitations; diversification; systematic nature of study and monitoring. It is proved that the assessment of the effectiveness of investment activities requires not only the main indicators of economic efficiency, but also taking into account the effects of its impact on the environmental and social components, as well as the management system. A comprehensive system for assessing the investment activities of agricultural enterprises is proposed, which includes: profitability indicators; indicators of investment efficiency; financial indicators of the enterprise; social and environmental indicators; indicators of management effectiveness and the apparatus of mathematical statistics for calculating the relationships and mutual influences between them.
Key words: investment activity, agricultural activity, system-reproductive approach, comprehensive system of indicators.
Mapping disaster resilience: Insight into two selected wards of Dhaka South City Corporation
Authors: Nishat Tusnime
Published: February 2025

Urban disasters have become an area of concern because of the high concentration of people and the complexity of systems in urban areas. Increased frequency and severity of climatic events have also made the urban areas hotspots for the damage of resources and casualty. Extensive research has been carried out to explore the physical risk and vulnerability profile of Dhaka city, while a holistic overview from the resilience perspective is rare. In this paper an index-based measure to determine the level of resilience in two wards of Dhaka South City Corporation (DSCC) has been attempted. Based on the areal expansion of DSCC in 2017, its administrative units can be categorized into two groups: old wards and newly added wards. Disaster resilience in the most densely populated ward in each group were selected as study areas. This study used Urban Disaster Resilience Index method to quantify resilience level based on five dimensions: physical, social, economic, institutional, and natural. Both wards displayed the highest resilience in physical attributes and exhibited the lowest resilience for institutional attributes. The overall score demonstrates that Ward 61 possesses lower resilience than Ward 33 because of its poor performance in water and drainage, sanitation and solid waste, education, and awareness, social capital, income, crisis management, knowledge dissemination, ecosystem services and land use. The findings reinforce the importance of investigating spatial variance in resilience and its underlying causes.
JBIP, Vol. 15, 2022, pp. 1-12
River shifting trend and landcover change by River Padma over four decades (1979-2019) : A case study at Naria Upazila of Shariatpur District
Authors: Zaman Afroza Bintey , Satu Shammi Akter
Published: February 2025

River channel morphologies are defined by riverbank accretion and erosion and how they change landcover over time. This study has examined the change of natural landcover of Naria upazila by the River Padma through analyses of satellite images using ERDAS Imagine 2019 and ArcGIS 10.8 software. Landcover maps were generated to monitor morphological changes caused by Riverbank erosion. Imageries from 1979 to 2019 at tenyear intervals from Landsat's Operational Land Imager and Thermal Infrared Sensor (for 2019), Enhanced Thematic Mapper Plus (for 2009 and 1999), Thematic Mapper (for 1989) and Multispectral Scanner (for 1979) were used. After identification of shifting of river course using unsupervised and supervised image classifications, landcover maps at tenyear intervals were generated with eight land use classes viz., river, water channel, inland water, forest, vegetation, char land and settlements. During the period of 1979 to 1999, river channel area in Naria upazila increased from 29.42 km2 to 44.34 km2 and between 2009 and 2019, river area decreased from 37.51 to 30.4 km2. In the period of 1979 to 2019, river area decreased from 11% to 10% and settled areas increased from 6 to 7%. The most significant change was for forest cover, which went down from 33% to only 6%. The study highlights four-decades of the River Padma’s shifting trends and its effects on Naria upazila’s landcover by riverbank erosion for the first time. This research has the scope of incorporating into the long-term morphological changes in the river as supportive research for future initiatives to adapt plans and policies for the vulnerable communities’ life and livelihood.
JBIP, Vol. 15, 2022, pp. 25-41
Solid waste generation, composition and potentiality of waste-to-resource recovery in Sylhet City Corporation
Authors: Ahmed Md Jisan , Taher M A , Reza Md Al Amin
Published: February 2025

Solid waste generation is increasing with high economic and population growths in Sylhet City Corporation (SCC). Characteristics of solid waste generation are different in many ways in the different cities/urban areas of Bangladesh. SCC is facing severe development challenges in areas like solid waste management and waste-to-resource recovery. SCC and its extended areas are now producing more solid waste than ever before because of accelerated unplanned urbanization, ever-growing tourist pressure and growing urban population. Sooner than later, resources recovery and capacity development in existing solid waste management systems will be required to allow sustainable and resilient growth of SCC. This study was aimed to explore the amount of solid waste generation per day in SCC and its extended areas. It also aimed to examine the current waste composition and the potential for resource recovery from solid waste in SCC. The study found that SCC is now generating a total 375.75 tons of solid waste every day from the households, kitchen markets, medical establishments, hotels, restaurants, and shops. This study has also found that about 90% of solid waste is perishable with high moisture content. The study identified some weaknesses of the existing solid waste management system. Recommendations were made for initiatives to convert waste into resources such as compost fertilizer, solid recovered fuel, and electricity production. This study can directly help the conservancy department of SCC, and possibly of other municipalities in Bangladesh, to formulate their policies and plans.
JBIP, Vol. 15, 2022, pp. 43-62
Detailed area plan (DAP) 2022–2035 for Dhaka: The quest for identity
Authors: Chisty Hisham Uddin , Aktar Mahfuja
Published: February 2025

Abstract not available
JBIP, Vol. 15, 2022, pp. 63-69
Novas terapias para obesidade: eficácia e segurança dos agonistas de GLP-1
Authors: Gonçalves Fernanda Sereno , Lima Ana Rafaela Lopes Reis
Published: February 2025

A obesidade é uma condição crônica complexa, caracterizada pelo acúmulo excessivo de gordura corporal, que apresenta desafios significativos para o manejo clínico devido à sua natureza multifatorial. Os agonistas do receptor de GLP-1 emergem como uma opção terapêutica promissora para o tratamento da obesidade. Este estudo visa avaliar a eficácia e segurança desses agonistas, analisando suas implicações clínicas em diferentes perfis de pacientes. Através da estratégia PICO, foi realizada uma revisão integrativa, selecionando cinco artigos das bases de dados PubMed, SciELO e Cochrane Library, abrangendo o período de 2019 a 2024. Os critérios de inclusão consideraram estudos em português e inglês, disponíveis na íntegra e que abordassem diretamente o tema. Foram excluídos estudos indisponíveis na íntegra, estudos de caso e relatos de experiência não relacionados diretamente ao tema. Os resultados indicam que agonistas de GLP-1, como semaglutida e liraglutida, são eficazes na redução de peso e oferecem benefícios adicionais no manejo da obesidade. No entanto, seu uso deve ser personalizado, considerando as características individuais dos pacientes para otimizar os resultados e minimizar efeitos adversos. Conclui-se que os agonistas de GLP-1 são eficazes em uma ampla gama de perfis de pacientes, desde aqueles com obesidade severa até indivíduos com obesidade associada a outras condições crônicas. Além disso, o manejo da obesidade requer uma abordagem abrangente que combine terapia farmacológica com intervenções no estilo de vida, como dieta e exercício físico, além de monitoramento contínuo para garantir a segurança e eficácia do tratamento.
Análise da neurotoxicidade causada por organofosforados e sua relação com alterações neurológicas e distúrbios psiquiátricos
Authors: Osternack Larissa Dayelle , Santos William Mattana dos , Veronez Djanira Aparecida da Luz
Published: February 2025

Os organofosforados são anticolinesterásicos suspeitos de interferir no desenvolvimento, no crescimento e no funcionamento de diferentes sistemas orgânicos. Com isso, o objetivo deste estudo foi desenvolver um levantamento de dados inerentes aos efeitos neurotóxicos dos organofosforados e possíveis quadros clínicos associados. Foi desenvolvida uma revisão narrativa da literatura, a partir de artigos indexados nas principais bases de dados: Elsevier, Cochrane, PubMed e SciELO. Os estudos foram selecionados utilizando os termos de busca que constam nos Descritores em Ciências da Saúde (Decs). Os dados obtidos apontam para os efeitos neurotóxicos pelo uso de organofosforados desde comprometimento no desenvolvimento do Sistema Nervoso até eventos neurotóxicos, que abrangem desde a crise colinérgica aguda e a síndrome intermediária até a polineuropatia retardada induzida por organofosforado, quadros clínicos em decorrência de degeneração axonal em diferentes regiões do Sistema Nervoso Central e Periférico, doenças neurodegenerativas e progressivas, além de distúrbios cognitivos e de comportamento, como transtorno do espectro autista. Assim, conclui-se que exposição a compostos organofosforados pode desencadear manifestações clínicas brandas, moderadas ou graves que revelam diferentes síndrome neurotóxicas, bem como transtornos psiquiátricos, como a depressão, comportamentos repetitivos, dificuldade de interação social e decréscimo do quoeficiente de inteligência.
A integração entre a asma e a doença do refluxo gastroesofágico mediada pela hiper-reatividade brônquica
Authors: Silva Bruno Luís , Barros Bruna Espadinha Rossi de , Costa Luiza Albuquerque Miqueri da , Motta Maria Victoria Delmonte Dias da , Matos Arthur Moura de , Carvalho Pedro Henrique Lara Oliveira de , Pimentel João Aluizio , Santos João Ferreira , Reis Larah Lisier de Lima Palmeira , Ferreira Christopher Boaventura de Couto , Kolling Júlia Cerize , Barbosa João Gabriel Bruzadelli
Published: February 2025

Introdução: A asma é uma das doenças atópicas mais prevalentes no mundo e sua conexão com a doença do refluxo gastroesofágico (DRGE) tem se tornado um objeto de pesquisa relevante no cenário médico contemporâneo. Objetivo: O presente estudo teve como objetivo caracterizar os mecanismos fisiopatológicos que integram a asma e a DRGE, sobretudo, a hiper-responsividade brônquica, alicerçando a construção do conhecimento com base em revisões de literatura robustas. Materiais e Métodos: Trata-se de uma revisão integrativa de literatura acerca das características clínicas gerais sobre a correlação fisiopatológica entre a asma e a doença do refluxo gastroesofágico. Utilizou-se a estratégia PICO para a elaboração da pergunta norteadora. Ademais, realizou-se o cruzamento dos descritores “Asma”; “Doença do Refluxo Gastroesofágico”; “Fisiopatologia”, nas bases de dados National Library of Medicine (PubMed MEDLINE), Scientific Eletronic Library Online (SCIELO), Ebscohost, Google Scholar e Biblioteca Virtual de Saúde (BVS). Resultados e Discussão: Os estudos demonstram algumas evidências que corroboram a integração entre os mecanismos fisiopatológicos das doenças, hipotetizando que existe um ciclo de retroalimentação entre as patologias, onde uma pode provocar e exacerbar a outra. Com destaque, a hiper-responsividade brônquica, a teoria da microaspiração e a teoria das alterações pressóricas decorrentes da broncoconstrição são as que melhores embasam essa integração. Conclusão: Existe uma clara integração fisiopatológica entre as doenças, contudo, ainda não foi possível utilizar desse conhecimento para se estabelecer um consenso propedêutico para melhorar o prognóstico dos pacientes asmáticos com DRGE ou vice-versa.