bluuebunny/crossref_metadata_2025 huggingface dataset:
Overview on natural dyes and their IR-spectra - Part IV: Dyes originated from insects
Authors: Mahltig Boris
Published: August 2024

Natural dyes were important in the past of textile industry. Due to actual trends towards bio-based and sustainable materials, also natural dyes might face a revival as part of a new sustainable clothing industry. According to this statement, the current paper gives an overview on selected natural dyes which are originated from insects. Altogether three different types of dyes are discussed gained from three different types of lice – cochineal, lac and kermes lice. Additional to an overview on dye properties and applications, a special view is done on the infrared spectra recorded from those dye materials. The IR-spectra are discussed in relation to chemical composition and structure of dye materials. They are a helpful tool for people working in the field of dye identification and quality control. The intension of this review series is to support an overview on natural dyes and their IR-spectra.
The House at the End of Time
Authors:   , Skene Caleb
Published: August 2024

Architectural theorist Peter Schneider wrote a seminal article in 2001 about an allegorical architectural project by Douglas Darden called “The House at the End of Time: Douglas Darden’s Oxygen House”. In this article, Schneider posits that: In making a building and thus making a life, one inevitably shapes the end of that building, the end of that life. Within the compelling idea of the first house—the house at the beginning of time—is buried the equally compelling image of its shadow: the house at the end of time. This is a place for dying in. (1) Schneider’s article postulates that the ‘house at the end of time’ is shaped in the shadows by the lives we lead. He allegorically reflects on this house as an archive of memories accumulated throughout one’s lifetime—a portrait of one’s inner life. Schneider proposes three principal techniques that come together to define such a house: oppositions and dualities, temporal simultaneity, and memory fragments.

This design-led research thesis investigates how Schneider’s written description of the ‘house at the end of time’ can be re-interpreted and re-presented through design as an allegorical architectural project. It intends to translate Schneider’s three allegorical techniques into a framing device for conceiving an architectural design representation of ‘the house at the end of time’. The thesis investigates how architectural theory relating to dualities and oppositions can re-present the house at the end of time as a shadow of the house at the beginning of time; how architectural theory relating to temporality can convey the co-existence of the beginning and end of time; and how the allegorical program of such a house can be understood as an archive of memory fragments. Fragments, which are harvested and filed away throughout our lives, even as they disappear, condense, reorient, and transform over time.

The thesis outcome takes the form of an allegorical architectural project as a way to challenge the nature of conventional architectural outcomes and traditional modes of representation. It re-presents Peter Schneider’s literary portrayal of the house at the end of time as an allegorical architectural outcome, an archive of memories that constitute a portrait of one’s inner life.
Exploring the Cultivation of Applied Talents Through International Exchange and Cooperation in Universities
Authors: Zhang Yi
Published: August 2024

With the strengthening of international exchange and cooperation, cooperation between universities and world-class universities is becoming increasingly close, and the internationalization development process of universities is accelerating. In such an environment, universities need to innovate their talent training models, cultivate applied talents, and meet the needs of society and the development of the times for talents. In view of this, the article will analyze the significance of cultivating applied talents in the international exchange and cooperation environment of universities, as well as innovative path strategies for cultivating applied talents, with the aim of cultivating international talents with both morality and talent.
Analysis of the Role of Syntactic Complexity in Students’ Reading Comprehension: A Teacher’s Perspective
Authors: Basilan Ma. Leticia Jose C. , De Sagun Daniel Reds G.
Published: August 2024

This study examines the role of the syntactic complexity of the text in the reading comprehension skills of students. Utilizing the qualitative method of research, this paper used structured interview questions as the main data-gathering instruments. English language teachers from Coral na Munti National High School were selected as the respondents of the study. Finding of the study suggests that the syntactic complexity of the text affects the reading comprehension of the students. Students found it challenging to understand the message that the author conveyed if he or she used a large number of phrases and clauses in one sentence. Furthermore, the complex sentence syntactic structure was deemed the most challenging for students to understand. To overcome said challenges in comprehending text, various reading intervention programs were utilized by teachers. These interventions include focused or targeted instruction and the implementation of the Project Dear, suggested by the Department of Education. These programs were proven to help students improve their comprehension as well as their knowledge in syntactical structure of sentences. This study underscores the importance of selecting appropriate reading materials and implementing suitable reading intervention programs to enhance students’ comprehension skills.
Teaching Reform and Practice of “Mathematical Analysis” under the New Engineering Education Paradigm
Authors: Wu Xiang
Published: August 2024

With the advent and promotion of the new engineering education paradigm, university mathematics courses face new challenges and opportunities. As a fundamental course for engineering majors, the reform of “Mathematical Analysis” is particularly crucial. This paper explores the necessity, specific practices, and outcomes of teaching reform in “Mathematical Analysis” within the context of the new engineering education. By reforming teaching content, methods, and assessment approaches, this study aims to enhance students’ mathematical literacy and comprehensive abilities to meet the demands of the new engineering education development.
Research on the Application of Psychology in the Ideological and Political Education of Counselors in Higher Vocational Colleges
Authors: Luo Xin
Published: August 2024

As an important base for the training of skilled personnel, the ideological and political education of counselors plays a vital role in the process of personnel training in higher vocational colleges. Based on the analysis of the current situation of ideological and political education of counselors in higher vocational colleges, this paper analyzes the application value and strategies of psychology in ideological and political education, aiming at providing a set of systematic psychological application frameworks for counselors in higher vocational colleges, so as to promote the all-round development of students and realize the fundamental task of cultivating morality and educating people.
The Innovative Practice of Traditional Printmaking Art in the Teaching of Costume Design
Authors: Ye Jingjing
Published: August 2024

Costume is not only an important carrier of human civilization, but also reflects the development level of material and spiritual civilization. In modern costume design, we have incorporated colorful cultural elements, which are not only the embodiment of aesthetics but also the aesthetic expression based on culture. Printmaking art, as a kind of traditional art, has its unique style and characteristics. In teaching practice, we instruct students to integrate the creative spirit and formal elements of printmaking into costume design, to realize the inheritance and innovation of traditional culture. Under the background of globalization, we should be more committed to inheriting and carrying forward the excellent Chinese national culture and promoting the popularization and dissemination of traditional culture. Exploring the application of printmaking art in costume design through teaching practice aims to construct a new teaching mode, which provides a reference for the application of other traditional arts in modern design teaching.
Leadership Virtues, Professional Self-Esteem, and Teaching Management of Chinese University Professors: Basis for Professional Development Plan
Authors: Zhang Wenfang
Published: August 2024

This study used a descriptive-quantitative research method as it describes the profile of Chinese university professors in terms of age, gender, and educational background. It also described the leadership virtues in terms of prudence, fortitude, temperance, and justice; professional self-esteem in terms of career choice and adaptability, career satisfaction and values, career impact and fulfillment, and career competence and evaluation; and teaching management in terms of teaching management and evaluation, the area of teaching and research activities, and the area of collective lesson planning activities. Diversity leadership training and instructional management training are provided to meet the needs of different groups of faculty and staff of different gender, age, and education levels. Individualized professional development plans are based on the personal characteristics and needs of professors, particularly in the areas of leadership, teaching management, and career satisfaction. To address the relationship among leadership virtues, professional self-esteem, and teaching management, long-term, in-depth research is encouraged to better understand the dynamics between them. Based on the results, this paper recommends the implementation of the proposed professional development plan.
The Application Value and Strategy of Red Music Culture in Ideological and Political Education in Primary and Secondary Schools
Authors: Wang Jing
Published: August 2024

As an important carrier of red culture, red music culture carries the glorious history of revolution, construction, and reform led by the Communist Party of China (CPC), and has significant functional value in cultivating students’ ideals, values, and cultural identity, as well as patriotic consciousness and national pride. However, the integration of red music culture into the ideological and political education of primary and secondary schools faces the dilemmas of low cultivation awareness, insufficient excavation of resources, and lack of optimization of atmosphere and field. In view of these problems, the strategies of enhancing cultivation awareness, excavating the resources in-depth, and creating a positive atmosphere and field provide new ideas and methods for ideological and political education in primary and secondary schools.
An Analysis of the Path of Ethnic Unity and Progress Education under Academy-Based Education: Taking Ningxia University as an Example
Authors: Liu Yan , Li Xuejie
Published: August 2024

Academy-based education is an active exploration and effective attempt to reform higher education and talent cultivation systems in the new era. This article aims to deeply analyze the characteristics and advantages of academy-based education. Combining the theoretical connotation and practical needs of ethnic unity and progress education and taking Ningxia University as an example, it explores the construction and implementation path of ethnic unity and progress education under academy-based education. It promotes communication and integration between students of different ethnic groups, enhances ethnic identity and national consciousness, and promotes the high-quality development of ethnic unity and progress cause.
Early Anti-Corruption Education as an Effort to Create a Corruption-Free Generation
Authors: Fata Ulfa Husnul , Wibisono Wahyu , Monica Laily Prima , Ulfa Maria , Nurmawati Thatit , Rahmawati Anita , Arsa Sandi Alfa Wiga
Published: August 2024

Corruption is a despicable act and a form of social disobedience of society. Corruption always has a bad impact on the life of the nation and state. Anti-corruption education from an early age is one of the powerful pillars in combating the dangers of corruption from an early age. The purpose of this community service program was to initiate anti-corruption values in the community from an early age. This community service activity was carried out by Lecturers of the Nursing and Midwifery Department in cooperation with the students of 2nd Semester of Nursing and Midwifery Department of STIKes Patria Husada Blitar. The activity were held on July 2022. The method used in this activity was a lecture session and question and answer about corrupting behavior in the school environment with leaflet media. The activities was carried out in accordance with the planning of the subject lesson. The activity was carried out on freshman at TKN Bendogerit 1 Blitar City, SDN 02 Plosokerep Kota Blitar, SMPN 1 Sanan Kulon, Blitar Regency and the Ibn Mas'ud Sum Islamic Boarding School Foundation Garum, Blitar Regency with the total number of students was 265 students.  The initiation of anti-corruption values must be carried out from an early age, starting from basic education to higher education. planting anti-corruption values in schools can strengthen the character of students, namely the initiation of the value of honesty, concern for others, responsibility, respect for others, discipline, simplicity, and fighting power or persistence in learning.
Empowering Women in Giving Moringa Biscuits to Prevent Anemia to Pregnant Women in Jatinom Village
Authors: Agustina Ika , Sari Levi Tina , Ulfa Maria , Noviasari Ita , Monica Laily Prima , Kusnianto Maratus Sholichah Fitriah Hajar , Handayani  , Wibisono Wahyu
Published: August 2024

Anemia in pregnancy was still one of the main health problems in Indonesia, the main cause of anemia in pregnant women was a lack of nutrients needed for erythrocyte synthesis, especially iron, folic acid and vitamin B12. One complete prevention of anemia was by gives moringa biscuits which can be consumed by pregnant women as an additional food or complementary food. The method used in implementation this community service was through 2 activities. The first activity was provided education to Jatinom posyandu cadres, Blitar Regency. The second activity was trained in make a Moringa biscuits. The results of the service showed that the knowledge of service participants before provided education was 50% cadres in the poor category, 30% cadres in the sufficient category, and 20% cadres in the good category. Knowledge after being given education was 80% cadres with good knowledge and 20% cadres with sufficient knowledge. Increasing health cadres' knowledge about anemia prevention will create positive rights for pregnant women because health cadres' knowledge will be transformed to pregnant women in their area. Apart from being transformed, health cadres will also support and accompany pregnant women in implemented anemia prevention. It was hoped that this will reduce the rate of anemia in pregnant women.
Student Creativity in Creating Geogebra Applet for Quadratic Function Material
Authors: Karomah Syarifatul , Siswono Tatag Yuli Eko , Zulnaidi Hutkemri
Published: August 2024

This research aims to describe the creativity and creative process of students with high, medium, and low levels of creativity. This qualitative research involved 6 Senior High School students in grade XI, 2 students at each level of creativity. The data collection technique uses assignments to make Geogebra applets that are analyzed with document analysis methods and interviews related to students' creative processes that are analyzed with interactive models. The research results show that the Geogebra applets produced by students are different at each level. The higher the level, the Geogebra applets are the more complex in use of Geogebra tools, providing many elements of novelty from the examples given, relevant to the task, and effective in achieving the set goals. Furthermore, the student's creative process with the stages of synthesizing ideas, generating ideas, planning the ideas, and applying ideas at each level has a different process. High creativity students go through each creative process stage well and repeat several stages to produce the Geogebra applet as in the assignment. Meanwhile, students with medium and low creativity are not good at going through each stage of the creative process.
Creative Thinking Process of Prospective Elementary Education Teacher Students Based on Field Independent Cognitive Styles and Self-Efficacy in Solving Contextual Problems
Authors: Suprapti Endang , Siswono Tatag Yuli Eko Siswono , Manuharawati Manuharawati , Hidayatullah Achmad Hidayatullah , Wijaya Armeria Wijaya
Published: August 2024

This study aims to describe the creative thinking process of prospective elementary school teachers based on independent field cognitive style and self-efficacy in solving contextual problems. This qualitative-exploratory study involved two prospective elementary school teachers who had independent field cognitive style and self-efficacy. Data collection was conducted through task-based interviews and analysis using interactive methods consisting of data condensation, data presentation, data interpretation and verification. The results showed that prospective elementary school teachers with independent field cognitive style and high self-efficacy had better creative thinking processes than prospective elementary school teachers with independent field cognitive style and low self-efficacy. Prospective elementary school teachers with independent field cognitive style and high self-efficacy in synthesizing ideas understood information well, and met the criteria for creative thinking in terms of fluency, flexibility and novelty. Meanwhile, prospective elementary school teachers with independent field cognitive style and low self-efficacy did not see the provisions in the questions given well, and only met the fluency criteria aspect.
Statistics Flip-Worksheet: The Key to Improve Students' Critical Thinking Skill
Authors: Febriani Indri Rohmatul Fakhri , Rahaju Endah Budi , Ekawati Rooselyna , Shodikin Ali
Published: August 2024

Abstract
The addition of flip-worksheets to the statistics curriculum is anticipated to enhance students' capacity for critical thinking. This research is a development research that aims to create a worksheet supported by a Flipbook that is reliable and useful for teaching statistics and could influence students' critical thinking skill. Some exercises and open-ended questions from the provided infographics are included in the Flip-Worksheet. The worksheet uses mean, median, and modus material. The flip-worksheet was created during a formative evaluation stage with 15 junior high school students in the eighth grade. Data was analyzed using walkthroughs, questionnaires, interviews, and document reviews. According to the validation results, Flip-Worksheet is extremely valid in terms of media (89.58%), and it is valid in terms of material (79.43%). The practicality percentage was 90.74%. It is in an interval between 80% - 100% which falls into the very practice category. The N-gain value was 0.71. The grade VIII student's capacity to think critically increased as a result of using the Flip-worksheet which had high criteria. Additionally, based on the document analysis of students' responses about the process of interpretation, analysis, assessment, inference, explanation, and self-regulation on a variety of critical thinking tasks, it may have the effect of developing students' critical thinking abilities. It can be used as a learning medium and can develop critical thinking skills needed in the 21st century. It is hoped that next studies of learning media will be conducted in the future to enhance critical thinking abilities with other technologies.
Analisis Manajemen Kelas pada Kelas VI SD Menggunakan Model Pembelajaran Cooperative Learning dengan Materi Satuan Panjang
Authors: Novelza Ice Dwi , Oktafia Mesi
Published: August 2024

Manajemen kelas merupakan bagian penting dari pelaksanaan pengajaran dan pembelajaran yang efektif. Tujuan dari penelitian ini yaitu untuk menganalisis manajemen kelas pada kelas VI SD menggunakan model pembelajaran cooperative learning dengan materi satuan panjang. Metode yang digunakan dalam penelitian ini adalah metode penelitian deskriptif kualitatif. Instrument yang digunakan dalam penelitian ini ialah peneliti sendiri. Subjeknya yaitu kelas VI SDN No.14/III Punai Merindu, Tanjung Pauh Mudik. Hasil penelitian ini menunjukkan bahwa manajemen kelas pada Kelas VI SD Menggunakan Model Pembelajaran Cooperative Learning dengan Materi Satuan Panjang sudah sangat baik yang ditandai dengan ketertiban siswa dan keaktifan siswa selama proses pembelajaran berlangsung. Dan pembelajaran juga menjadi lebih efektif.
Proses Berpikir Kreatif Siswa SMA dalam Menyelesaikan Masalah Kontekstual Materi Fungsi Kuadrat
Authors: Fathoni Muhammad Arif , Siswono Tatag Yuli Eko
Published: August 2024

Penelitian ini bertujuan untuk mendeskripsikan proses berpikir kreatif siswa SMA dengan kemampuan matematika tinggi dan sedang dalam menyelesaikan masalah kontekstual materi fungsi kuadrat. Jenis penelitian yaitu penelitian deskriptif kualitatif. Instrumen utamanya yaitu peneliti dan instrumen pendukung terdiri dari tes da wawancara terstruktur. Penelitian melibatkan 1 siswa kemampuan matematika tinggi dan 1 siswa kemampuan matematika sedang jenjang SMA kelas X. Teknik analisis mengunakan teknik analisis miles dan huberman. Berdasarkan hasil penelitian yaitu (1) siswa kemampuan matematika tinggi melakukan proses berpikir kreatifnya dimulai dari memahami informasi yang tersaji dengan menulis ke lembar jawaban dan langsung mendapatkan ide terkait yang dapat digunakan sebagai pemecahan masalah. Kemudian, siswa membuat strategi dari ide yang sudah didapatkan, dengan jumlah strategi lebih dari satu. Siswa juga melakukan perencanaan yang jelas tehadap strateginya dari awal hingga akhir, terakhir siswa dapat menyelesaikan masalah dengan benar dan akurat, dan juga melakukan pengecekan terhadap jawabannya tanpa perlu diarahkan, siswa juga berhasil membuktikan jawabannya menggunakan strategi lain.(2) siswa kemampuan matematika sedang melakukan.proses berpikir kreatif dimulai dari memahami informasi yang tersaji dengan membaca berulang kali, siswa juga perlu diberikan stimulus tambahan supaya mendapatkan ide terkait yang bisa digunakan sebagai pemecahan masalah. Kemudian, dalam proses membuat strategi dari ide yang sudah didapatkan, siswa hanya memunculkan satu strategi saja karena penguasaan materi yang kurang. Siswa juga membuat rencana, namun hanya bisa menjelaskan langkah awal saja. Terakhir, siswa dapat menyelesaikan masalah dengan benar dan akurat, namun sesekali perlu waktu berhenti untuk memikirkan langkah berikutnya. Dan siswa melakukan pengecekan terhadap jawabannya namun masih perlu diarahkan, siswa juga tidak membuktikan jawabannya menggunakan strategi lain, karena hanya satu strategi saja yang dimunculkan sebelumnya.
Kata Kunci: Berpikir kreatif, Masalah Kontekstual, Fungsi Kuadrat
Proses Berpikir Siswa SMP dalam Menyelesaikan Masalah Kontekstual Ditinjau dari Gaya Kognitif Reflektif-Impulsif
Authors: Sa'idah Risalatus , Rahaju Endah Budi
Published: August 2024

Mathematics learning should emphasize students' thinking processes so that they can reveal the processes that take place when students solve problems so that they are by the goals of learning mathematics according to Permendikbud Number 21 of 2016. The use of contextual problems can motivate students when solving problems. Contextual problems are found in algebraic materials. Each student has a different cognitive style, including reflective and impulsive cognitive styles. When students have different cognitive styles, the way to solve problems is also different, so it will trigger differences in students' thinking processes. This research is qualitative descriptive research because it fits the purpose of this study, which is to describe the thinking processes of junior high school students with reflective and impulsive cognitive styles in solving contextual problems in algebra material. The subjects of this study were two students of class VII-E at SMPN 2 Porong with different cognitive styles and high levels of mathematical ability. The instruments used in this study were cognitive style tests (Matching Familiar Figure Test), mathematical ability tests, contextual problem-solving assignments, and interview guidelines. The results of the cognitive style test (MFFT) were analyzed by calculating the time spent working on and the correct answers, the results of the mathematics ability test were analyzed according to the scoring guidelines, and the task of solving contextual problems was analyzed according to the indicators of the thinking process in solving the problems that had been created. The results of the study show that 1) Reflective students carry out the stages of solving problems properly and thoroughly without making mistakes until they find the final answer to the problem given. 2) Impulsive students experience mistakes and are not careful in solving the problem because they cannot find answers to the problems given.
Analisis Berpikir Kritis Siswa SMP dalam Memecahkan Masalah Segitiga Berbantuan Geogebra
Authors: Sholikha Defi Imamatus , Siswono Tatag Yuli Eko
Published: August 2024

Critical thinking is an important skill in making life changes for every individual. The importance of critical thinking causes the need to be developed since school. Learning in schools today needs to be linked to technology because it can improve students' critical thinking, one of which is GeoGebra. However, nowadays in the learning process not many or even no one has implemented technology-assisted learning, so it is necessary to implement technology-assisted learning, especially GeoGebra to help improve students' critical thinking. This research is a qualitative research using case studies. The purpose of this study was to analyze the critical thinking of students who were successful, less successful and unsuccessful in solving geogebra-assisted triangle problems. The subjects of this research were 3 students who fulfilled this research category. The results showed that (1) students with the category of successfully solving triangle problems with the help of Geogebra could fulfill all indicators of critical thinking well at each stage of solving triangle problems. (2) students in the less successful category of solving triangle problems with the help of Geogebra, can only fulfill 3 indicators of critical thinking skills, namely interpretation, analysis, and evaluation. (3) students in the category of not being successful in solving triangle problems with the help of Geogebra, can only fulfill 1 indicator of critical thinking skills well, namely interpretation.
Mathematical Reasoning of High School Students in Solving AKM Geometry and Measurements Problem Viewed from Multiple Intelligences
Authors: Putri Sabrina Wimala , Ekawati Rooselyna
Published: August 2024

Mathematical reasoning is needed in solving AKM problems. Mathematical reasoning can be shown through geometry material. One of the factors that influence mathematical reasoning is multiple intelligences. Multiple intelligence is a theory presented by Gardner which states that each individual has eight intelligences. The three intelligences that affect the learning process of mathematics are logical-mathematical, linguistic, and visual-spatial intelligence. This study aims to describe students' mathematical reasoning in solving AKM problems about geometry and measurement content viewed from multiple intelligences. This research is qualitative research. The subjects of this study were three senior high school students consisting of one person each who has dominant logical-mathematical, linguistic, and visual-spatial intelligence. Data collection was carried out by providing multiple intelligence questionnaires, AKM geometry and measurements problems, and interviews. The data were analyzed based on the selected mathematical reasoning indicators. The results of the study show that: Student with dominant logical-mathematical intelligence analyzing a problem by giving reasons based on important information using logic. Students with dominant linguistic intelligence and students with dominant visual-spatial intelligence analyzing a problem by giving reasons using the help of an image that represents the shape described in the problems. Each student implementing a strategy to solve the problem according to what was planned in the previous stage by giving reasons based on the results to be obtained. In reflecting on a solution to a problem, each student draws a conclusion by giving reasons based on the results obtained from implementing the strategy and providing evidence by giving reasons based on the calculation results.
Eksplorasi Etnomatematika Pada Peninggalan Sejarah Dan Budaya Sumenep
Authors: Alvianto Achmad Luthfi , Setianingsih Rini
Published: August 2024

In a culture that is spread across various societies, mathematical concepts are applied in it. The mathematical concept contained in this folk culture is called ethnomathematics. This study aims to find and describe mathematical concepts spread in the historical and cultural heritage of the Sumenep district community. This research is a qualitative descriptive study using an ethnographic approach. The research data were obtained from related literature, observations, interviews, documentation, and field notes. The informants in this study were a historian, a tourism ambassador, a royal family, three market traders, a Tong-tong activist, a traditional dancer, a batik entrepreneur, and a keris craftsman. The results showed that in daily activities and the culture in the Sumenep district, mathematical concepts are used by the people of Sumenep district. The Sumenep people use geometric concepts, namely straight lines, curved lines, parallels, triangles, squares, rhombuses, trapezoids, circles, cubes, beams, prisms, pyramids, cones, balls, and tubes in building designs and traditional games. The community also uses the concept of geometric transformation, namely congruence, translation, dilation, rotation, and reflection on the batik motifs they make. Also found the concept of set and comparison; these concepts are used in traditional Sumenep dance. With the study of mathematics in this culture, mathematics learning becomes more varied and contextual so that students will more easily understand abstract mathematical concepts.
Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Komik Pada Materi Bangun Ruang Untuk Meningkatkan Hasil Belajar Matematika
Authors: Firmansyah Editya Yoga , Masriyah Masriyah
Published: August 2024

This study aims to describe the validity, practicality and effectiveness of student worksheets based on comics on geometric materials developed in learning to improve student learning outcomes. The research method used in this study is a research and development. The subject of this research was a class of VII grade junior high school students. The instruments used were media expert validation questionnaires, material expert validation questionnaires, observation sheets of teachers' ability to manage learning, observation sheets of student activities, student response questionnaires and pretest-posttest.Based on the results of data analysis, it was found that the validation results of comic-based student worksheets were assessed by two validators, namely 1) media expert validator, 2) material expert validator. The results of the validation analysis of the experts obtained a score of 3. Based on the results of the validation analysis, comic-based student worksheets were developed that were feasible to try out. The results of observing the teacher's ability to manage learning obtained a score of 4, or included in the very good category. The results of observations of student activity obtained a score of 87.5%, or included in the active category. Based on the results of the practicality analysis, comic-based student worksheets are stated to be practical in the learning process. The results of the students' responses obtained a score of 96.57%, or included in the very good category. The pretest-posttest results obtained an N-gain score of 0.77, or included in the high category. Based on the results of the effectiveness analysis, comic-based student worksheets were declared effective in improving student learning outcomes.
Efforts to Improve the Mathematical Ability of Grade VII Students Spatial Building Materials with the Project Based Learning (PjBL)
Authors: Maulidah Noor Mayaminiy , Mardiana Ari , Priyo Prawoto Budi
Published: August 2024

This type of research uses Classroom Action Research (CAR). The subjects in this study were class VII-C students at SMP Negeri 6 Surabaya with a total of 34 students. Research data were obtained from project sheets, evaluation questions, and activity sheets on spatial learning through the Project Based Learning (PjBL). The results of the study show that the application of the Project Based Learning (PjBL) can increase the mathematical value of geometric material in class VII-C students of SMP Negeri 6 Surabaya for the 2022/2023 academic year. The average score of students in cycle I was 59.7 and the average score of students in cycle II increased to 83 with the KKM at SMP Negeri 6 Surabaya being ≥ 80. And the Project Based Learning (PjBL) can meet the KKM achievement target, activity and projects in mathematics subject matter geometry. Achievement of the percentage of completeness to improve students' mathematical abilities in cycle II was 82.34% with students who completed reaching 28 students, 6 students who did not complete with further guidance through giving assignments.
Pengaruh Model Problem Based Learning terhadap Hasil Belajar Siswa Kelas X SMK N 1 Kalasan
Authors: Sukiyanto Sukiyanto , Istiqomah Istiqomah , Arigiyati Tri Astuti , Marlinda Hestu
Published: August 2024

This study aims to determine the effect of the Problem Based Learning on student learning outcomes in class X Hospitality A at SMK N 1 Kalasan. This research is an ex post facto research with a quantitative approach. Respondents in this study were all students of class X Hospitality A, totaling 35 students. The data collection technique used includes a Problem Based Learning questionnaire and the results of learning mathematics in the form of roots. Instrument validity test using product moment correlation and reliability test using Cronbach’s alpha. Meanwhile the data analysis test used correlation significance test and simple linear regression. The results of the correlation significance analysis obtained tcount of 0,597 with a significance value of 0,000 < a significance level of 0,05. Regression results obtained 35,7%, therefore this shows that the Problem Based Learning has a positive and significant influence on student learning outcomes.
Profil Pemecahan Masalah Matematika Model PISA Siswa SMP Ditinjau dari Tingkat Emotional Quotient (EQ)
Authors: Hidayatullah Muhammad Syahrul , Ismail Ismail
Published: August 2024

Pemecahan masalah penting dalam pendidikan matematika karena dalam kehidupan sehari-hari manusia tidak lepas dari masalah dan dari masalah yang ada, terdapat masalah yang berhubungan dengan matematika. Kemampuan pemecahan masalah siswa Indonesia diuji dalam tes yang diselenggarakan secara internasional oleh Organisation of Economic Co-operation and Development (OECD), yaitu tes Programme for International Students Assessment (PISA). Skor Indonesia masih berada pada peringkat yang rendah karena skor rata-rata dari OECD yaitu 500. Terdapat banyak faktor yang memengaruhi pemikiran manusia dalam memecahkan masalah, salah satunya yaitu kecerdasan emosional (EQ) manusia. Penelitian yang dilakukan bertujuan mendeskripsikan profil pemecahan masalah matematika model PISA ditinjau dari tingkat EQ siswa. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif. Subjek dalam penelitian ini adalah satu siswa dari setiap tingkat EQ tinggi, sedang, dan rendah. Instrumen yang digunakan dalam penelitian ini antara lain angket kecerdasan emosional, tes pemecahan masalah matematika model PISA, dan pedoman wawancara. Hasil dari penelitian ini diperoleh bahwa siswa dengan tingkat EQ tinggi dan siswa dengan tingkat EQ sedang memiliki kemampuan pemecahan masalah yang baik, siswa mampu melakukan empat tahapan pemecahan masalah dengan baik, yaitu memahami masalah, membuat rencana penyelesaian, melaksanakan rencana penyelesaian, dan memeriksa kembali. Sedangkan siswa dengan tingkat EQ rendah memiliki kemampuan pemecahan masalah yang kurang baik karena pada tahap memahami masalah, siswa masih kesulitan dalam menceritakan kembali soal menggunakan bahasa sendiri dan informasi soal yang ditulis masih kurang lengkap. Pada tahap melaksanakan rencana penyelesaian, siswa belum mampu menuliskan kesimpulan dengan jelas. Serta pada tahap memeriksa kembali, siswa tidak mengecek kembali jawaban yang telah ditulis.
Analisi Tingkat Kecemasan Matematika Siswa SMA Terhadap Sudden Test Matematika Ditinjau dari Tingkat Kemampuan Matematika Siswa
Authors: Wibowo Angga Setiawan Adi , Ismail Ismail
Published: August 2024

Mathematics anxiety is a feeling of anxiety, tension, or fear that interferes with your ability to do mathematics and chooses to avoid situasions related to mathematics. Mathematics anxiety is experienced by students who are not good at mathematics or who are good at mathematics. Factors that make atudents experience mathematics anxiety include daily tests, class promotion exam, sudden test, and so on. The research conducted aims to desribe the level of high schol students mathematics anxiety towards sudden mathematics test in terms of the level of students mathematics ability. This research is a descriptive research with a qualitative approach. The subjects in this study were 3 students with different levels of mathematics ability. The research was conducted using instruments including mathematics test worksheets, and interview guidelines. The results of this study showed that students with high levels of mathematics ability experienced very low mathematics anxiety, students with moderate levels of mathematics ability experienced low mathematics anxiety, and students with low levels of mathematics ability experienced high mathematics anxiety.
Bagaimana Literasi Matematis Siswa pada Penyelesaian Soal PISA-Like Berdasarkan Tingkat Kecerdasan Logis Matematis?
Authors: Elyasarikh Annisa Alvi , Masriyah Masriyah
Published: August 2024

Mathematical literacy refers to an individual's capacity to think mathematically to formulate, employ, and interpret solutions to real world problems that can be seen through PISA result. In solving PISA problems, one of intelligence that needed is mathematical logical intelligence. Therefore, this study intends to describe the mathematical literacy of students with high or low mathematical logical intelligence in solving PISA-Like problems. This study took a descriptive qualitative approach. The subjects of this research were 2 students with high or low logical intelligence. Data collection was carried out by logical mathematical intelligence test, PISA-Like test, and interviews. This research found that student that has a high level of logical intelligence was capable to explain what was known and asked about the problem, she was capable to design strategies to find mathematical solutions, she was capable to apply mathematical concepts by outlining the steps to find solutions to problems, she was capable to draw the conclusions obtained into the context of question, and she was capable of criticize the solutions to PISA-Like problems. Meanwhile, student that has a low level of mathematical logical intelligence was capable to identify what was known and asked about the problem, she was capable to draw the conclusions obtained into the context of question, but she was quite capable to design strategies to find mathematical solutions, she was quite capable to apply mathematical concepts by outlining the steps to find solutions to problems, and she was less capable to criticize the solutions to PISA-Like problems.
REVIEW ARTIKEL : PRODUKSI BIODIESEL DARI MINYAK GORENG BEKAS DENGAN METODE TRANSESTERIFIKASI MENGGUNAKAN KATALIS
Authors: Budiman Aditya Arif , Samik Samik
Published: August 2024

Minyak goreng bekas merupakan bahan baku energi terbarukan yang dapat digunakan untuk memproduksi biodiesel dengan biaya produksi yang lebih ekonomis karena merupakan limbah dan harganya yang murah atau bahkan gratis. Penggunaan minyak goreng bekas sebagai bahan baku biodiesel adalah tindakan yang ramah lingkungan karena dapat mengurangi pencemaran lingkungan terutama pada tanah dan air. Oleh karena itu, tujuan artikel ini adalah untuk menjelaskan pengolahan minyak goreng bekas menjadi bahan baku biodiesel dengan berbagai katalis yaitu katalis asam, basa, dan enzim baik yang homogen maupun heterogen. Metode yang digunakan dalam penulisan artikel ini adalah mereview berbagai artikel tentang produksi biodiesel dengan metode transesterifikasi menggunakan katalis. Katalis yang umum digunakan adalah katalis asam (homogen, heterogen), basa (homogen, heterogen), dan enzim. Hasil dari berbagai literatur menunjukkan bahwa WFO dapat diubah menjadi biodiesel menggunakan berbagai katalis. Pada kondisi optimum katalis asam homogen seperti H2SO4 menghasilkan yield 95,37%. Katalis asam heterogen seperti Fe2O3-MnO-SO42- / ZrO2 menghasilkan yield 96,5%. Katalis basa homogen seperti NaOH menghasilkan yield biodiesel 98%. Katalis basa heterogen seperti CaO-MgO menghasilkan yield biodiesel 98,95%. Sedangkan pada katalis enzim seperti enzim Lipase dari Candida rugosa dan Rhizomucor miehei diperoleh yield biodiesel sebesar 96,5%. Dari hasil tersebut, katalis basa heterogen CaO-MgO merupakan katalis yang paling tinggi dalam menghasilkan yield biodiesel dari berbagai katalis yang lain.
PENGARUH EDUKASI TERHADAP TINGKAT PENGETAHUAN DAN UPAYA PENCEGAHAN STUNTING ANAK USIA BALITA
Authors: Utami Wuri , Waladani Barkah , Ernawati Ernawati
Published: August 2024

The incidence of short toddlers or commonly known as stunting is one of the nutritional problems experienced by toddlers in the world today. Apart from reducing intelligence and productivity and susceptibility to disease, stunting will have the impact of inhibiting economic growth. Therefore, interventions to prevent stunting growth are still needed even after the first 1000 days of birth. This study aims to determine the effect of education on the level of knowledge and efforts to prevent stunting in children under five in the Sempor 2 Community Health Center working area. This research method uses an analytical correlation design with a cross sectional approach. using a pre and post test approach without control. The total sample was 87 respondents with inclusion criteria including mothers of toddlers aged 2-5 years, while the exclusions were mothers who had toddlers with congenital abnormalities, and mothers with toddlers who were acutely ill. This research uses a questionnaire instrument. Before educating respondents, a pre-test was carried out on their level of knowledge and prevention efforts. After being given education, a post test was carried out on the level of knowledge and prevention efforts. The results of the research showed that before the education was carried out, the majority of respondents with a sufficient level of knowledge were 53 respondents (60.9%). After the education was carried out, respondents experienced an increase in their level of knowledge, with 76 respondents (87.3%) in the good category. The results of this study prove that there is an influence of education on increasing knowledge of efforts to prevent stunting in children under five
Classification of Corn Leaf Disease Using Convolutional Neural Network
Authors: Ariska Ratih , Sari Christy Atika , Rachmawanto Eko Hari
Published: August 2024

Corn is a crop that plays a major role in food supply worldwide. Known as a cereal crop with high economic value, corn is one of the most important raw materials in the agricultural industry in many parts of the world. Leaf blight is characterized by small spots that gradually enlarge and turn brown. It is a decay of foliage caused by the fungus or species Rhizoctonia solani. Leaf spot is caused by the fungus Hel-minthoporium maydis, while stem rot is caused by Fusarium granearum. From these problems, a machine learning-based solution is given to classify corn leaf diseases using the Convolutional Neural Network (CNN) algorithm. CNN are used to classify corn leaf diseases. The selection of CNN is based on its ability to extract local attributes from image data and combine them for a more detailed and abstract representation, which is better. Classification was performed using 2145 datasets for leaf blight and 1574 datasets for leaf spot. The accuracy results obtained from this study reached 99% with the last training accuracy value of 99.06% and the last validation accuracy result of 98.50%. For future research may use more modern architectures such as classification using EfficientNet B3 architecture with transfer learning or MobileNet to improve accuracy results.
Synthesis of Avocado Seeds Into Biodiesel Using A Catalyst CaO From Blood Cockle Shell
Authors: Suprihatin  , Alif Julian  , Muhammad Fikri
Published: August 2024

Biodiesel is an environmentally friendly fuel made from oil vegetables that contain triglycerides. Biodiesel from avocado seed vegetable oil in Indonesian agricultural areas which according to BPS 2022 data, Indonesia produces 183,000 tons of avocados per year. This research aims to gained the effect of adding reaction temperature and Oil : Methanol ratio influence on biodiesel production. The avocado seed oil obtained by soxhlet extraction method, where 50 gram avocado seeds powder extracted with n-hexane solvent in 1 hour extraction time and 60℃ temperature giving result 10% yield of avocado seed oil . The CaO catalyst are obtained from Calcination procees of blood cockle shells in 900℃ temperature and 4 hours calcination time giving 98.82% CaO Cotent. The biodiesel is produces with 97% methanol reactant and 98.82% CaO catalyst in various methanol volume (30; 40; 50; 60; and 70 ml) and under different temperature conditions (30; 40, 50, 60, and 70 ℃). The best result of transesterification process biodiesel is obtained in 50℃ and 40ml methanol gets biodiesel yield of 96%, methyl ester content of 99.83%,  density of 865 gr/cm3, viscosity of 2.5 cSt  , mgKOH/gr acid number of 0.56 of, and heating value of 9871.6 kcal/kg. Based on the high result of methyl ester content and heating value of biodiesel obtained from the procees, the avocado seed oil biodiesel potentially used as an sustainable energy.