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Optimasi Kadar Maleat Anhidrat Dan Suhu Pada Pembuatan Maleated Natural Rubber Melalui Proses Grafting Yunus, Aulia; Yelmida, Yelmida; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Natural rubber can be developed through a process called Maleated Natural Rubber grafting. A study about the influence of the composition of maleic anhydric (MAH) and temperature on the degree of grafting has been done before. The purpose of this research is to determine the optimum composition and temperature in the process of MAH grafted natural rubber. The composition of MAH is 7, 8, 9, and 10 phr with temperature conditions is 150, 155, 160 and 165oC. The grafting process use internal mixer operated at 60 rpm for 10 minutes. Grafting degree determined by titrimetric method where MNR in xylene solution titrated using MeOH solution. The results showed that the optimum composition and the temperature are 8.36 phr and 160oC with 3.62% grafitng degree.  Keywords: grafting degree, maleic anhydric, maleated natural rubber, optimation, temperatur
The Gen Z Student’s Styles In Learning English At Islamic Junior High School Yunus, Aulia; Seftina, Ayumi; Fatimah, Dwi; Syaharani, Namira; Santoso, Didik
Madani: Jurnal Ilmiah Multidisiplin Vol 2, No 7 (2024): Madani, Vol 2. No. 7, 2024
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12696964

Abstract

This study explores the learning styles of Generation Z students in the context of learning English at an Islamic Junior High School. Generation Z, characterized by its digital nativity and diverse learning preferences, presents unique challenges and opportunities for educators. The research employed qualitative methods to investigate how these students engage with English language learning, focusing on their preferred learning styles, technological integration, and cultural influences within an Islamic educational environment. Findings suggest that while digital tools are widely embraced, traditional pedagogical approaches remain influential. The study concludes with implications for educators to better cater to Gen Z's learning preferences while respecting the cultural and religious contexts of Islamic education.
Students' Perceptions on Memorylingo to Improve Their Listening Skill Yunus, Aulia; Salmiah, Maryati
IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature Vol. 13 No. 1 (2025): IDEAS: Journal on English Language Teaching and Learning, Linguistics and Lite
Publisher : Institut Agama Islam Negeri Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/ideas.v13i1.6952

Abstract

This study investigates students’ perceptions of using the MemoryLingo application to enhance their English listening skills. Employing a qualitative case study approach, the research involved 34 junior high school students who completed questionnaires, with two purposively selected participants interviewed to gain deeper insights. Data were collected through Likert-scale questionnaires and semi-structured interviews, focusing on comprehension, engagement, confidence, and independent learning. The results indicate that the majority of students (over 85%) agreed or strongly agreed that MemoryLingo improved their listening comprehension, accuracy, and ability to identify key spoken phrases. Participants reported that features such as interactive exercises, audio-visual content, and immediate feedback were highly effective in facilitating learning. Thematic analysis revealed four central themes: improved comprehension, increased confidence, promotion of independent practice, and the benefits of interactive features. Although some students noted difficulties in processing fast-paced audio, overall perceptions were positive. The findings suggest that MemoryLingo can serve as a valuable supplementary tool in listening instruction, supporting both classroom learning and autonomous study. This study highlights the practical relevance of integrating digital tools into English language education and recommends further research with larger and more diverse samples to explore long-term impacts and comparative effectiveness with other learning applications. Future research should examine its long-term effects and compare its impact with other digital tools.
Students' Perceptions on Memorylingo to Improve Their Listening Skill Yunus, Aulia; Salmiah, Maryati
IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature Vol. 13 No. 1 (2025): IDEAS: Journal on English Language Teaching and Learning, Linguistics and Lite
Publisher : Institut Agama Islam Negeri Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/ideas.v13i1.6952

Abstract

This study investigates students’ perceptions of using the MemoryLingo application to enhance their English listening skills. Employing a qualitative case study approach, the research involved 34 junior high school students who completed questionnaires, with two purposively selected participants interviewed to gain deeper insights. Data were collected through Likert-scale questionnaires and semi-structured interviews, focusing on comprehension, engagement, confidence, and independent learning. The results indicate that the majority of students (over 85%) agreed or strongly agreed that MemoryLingo improved their listening comprehension, accuracy, and ability to identify key spoken phrases. Participants reported that features such as interactive exercises, audio-visual content, and immediate feedback were highly effective in facilitating learning. Thematic analysis revealed four central themes: improved comprehension, increased confidence, promotion of independent practice, and the benefits of interactive features. Although some students noted difficulties in processing fast-paced audio, overall perceptions were positive. The findings suggest that MemoryLingo can serve as a valuable supplementary tool in listening instruction, supporting both classroom learning and autonomous study. This study highlights the practical relevance of integrating digital tools into English language education and recommends further research with larger and more diverse samples to explore long-term impacts and comparative effectiveness with other learning applications. Future research should examine its long-term effects and compare its impact with other digital tools.
ANALISIS PROSES BERPIKIR MATEMATIS DALAM MEMECAHKAN MASALAH MATEMATIKA DITINJAU DARI ADVERSITY QUOTIENT SISWA KELAS VIII SMP MUHAMMADIYAH 12 MAKASSAR Syam, Haerul; Yunus, Aulia
SIGMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 15 No. 1: Juni 2023
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/sigma.v15i1.10954

Abstract

Penelitian ini bertujuan untuk mendeskripsikan proses berpikir matematis siswa tipe climber, camper, dan quitter dalam memecahkan masalah matematika. Penelitian ini merupakan penelitian kualitatif deskriptif. Subjek dalam penelitian  adalah 3 orang siswa kelas VIII SMP Muhammadiyah 12 Makassar dengan tipe AQ climber, camper, dan quitter. Teknik pemilihan subjek dalam penelitian ini, dengan memberikan angket ARP kepada seluruh siswa kelas VIII untuk memilih 3 siswa  yang mewakili masing-masing tipe AQ. Instrumen dalam penelitian ini yaitu angket ARP, tes pemecahan masalah, dan pedoman wawancara. Berdasarkan hasil penelitian, dapat disimpulkan bahwa proses berpikir matematis yang dilakukan siswa climber yaitu mampu mengenali dan mengidentifikasi masalah dengan baik, kemudian  menyusun cara dan metode penyelesaian yang diperlukan, serta mengevaluasi kembali hasil yang telah diperoleh, siswa dengan tipe ini adalah tipe siswa yang memiliki motivasi dan dorongan yang tinggi dalam dirinya dalam menyelesaikan permasalahan yang dihadapi. Adapun siswa tipe camper pada proses berpikir matematisnya, melakukan tahap awal dalam penyelesaian yaitu mengendifikasi informasi pada masalah yang diberi, kemudian menentukan teori dan metode yang akan digunakan, namun kurang teliti dalam mengevaluasi hasil yang telah diperoleh. Sedangkan siswa tipe quitter dalam proses berpikir matematisnya, tidak mampu mengidentifikasi masalah terlebih dahulu untuk dapat menentukan metode pemecahan yang akan digunakan, sehingga tidak ada proses evaluasi hasil yang dapat dilakukan.