Article Per Year (5 Year)
p-Index From 2020 - 2025
0.983
P-Index
This Author published in this journals
All Journal Kasuari: Physics Education Journal (KPEJ) Andalasian International Journal of Applied Science, Engineering, and Technology Journal Liaison Academia and Society GreenTech PATRIOTIK: Jurnal Inovasi dan Pemberdayaan Masyarakat
Rozalia, Rozalia
Unknown Affiliation
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Development of LKPD Based on Teaching at the Right Level to Improve the Critical Thinking Ability of Grade XI Students Rozalia, Rozalia; Purwanto, Andik; Hamdani, Dedy
Kasuari: Physics Education Journal (KPEJ) Vol. 7 No. 2 (2024): December 2024
Publisher : Universitas Papua, Jurusan Pendidikan Fisika FKIP Unipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37891/kpej.v7i2.771

Abstract

This study aims to determine the feasibility, improvement of critical thinking skills, and student responses to LKPD based on Teaching at the Right Level. The Research and Development method, namely the ADDIE model, is used in this study. The distribution of the needs questionnaire at the analysis stage with a percentage result of 78% means that grade XI students of SMAN 8 Bengkulu city need LKPD TaRL teaching materials with the category of agreeing. The planning stage is carried out by designing a TaRL-based LKPD. The development stage was carried out to make LKPD, then validated by three experts consisting of two lecturers and one teacher, a percentage of 91% was obtained which was considered very feasible. At the implementation stage, a pretest was carried out before learning using LKPD TaRL in grade XI 2 SMAN 8 Bengkulu city, then a postest with an increase in N-gain of 0.78 was categorized as high and a student response of 88% in the very good category. The evaluation stage is carried out at each stage of the ADDIE model. It was found that the development of TaRL-based LKPD was very feasible, the student response was very good, and the increase in N-gain was high.
Pengunaan Bawang Merah dan Rendaman Air Kelapa untuk Stek Jambu Air Madu Deli di Desa Amplas Medan Irawan, Surya; Rozalia, Rozalia
Journal Liaison Academia and Society Vol 2, No 2 (2022): Juni 2022
Publisher : Lembaga Komunikasi dan Informasi Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1467.207 KB) | DOI: 10.58939/j-las.v2i2.346

Abstract

Penyuluhaan pengabdian masyarakat ini bertujuan untuk mengetahui pengaruh interaksi dan pengaruh utama Zat Peransang akar pada bawang merah dan dengan lama perendaman pada air kelapa terhadap tanaman jambu air madu varietas Deli hijau (Syzygium aqueum L.). Rancangan yang digunakan adalah dengan pemberian contoh aplikasi optimal dilapangan secara lansung kepada kelompok masyarakat bagaimana cara mengunakan ZPT secara effisien terhadap stekan jambu air madu yang terdiri dari Faktor pertama adalah konsentrasi bawang merah yang terdiri air bawang merah. Faktor kedua adalah lama perendaman yang terdiri dari 4 yang optimal taraf yaitu lama perendaman stek 7 .Parameter yang diamati adalah persentase hidup stek (%), umur bertunas hari setelahtanam (hst), jumlah tunas (helai), jumlah akar (buah), panjang akar terpanjang (cm), volume akar (cm³). Data pengamatan dianalisis secara statistik dan dilanjutkan dengan pada taraf 5%. Hasil aplikasipenelitian menunjukkan interaksi konsentrasi ekstrak bawang merah dan lama perendamanmemberikan pengaruh nyata terhadap parameter persentase hidup stek, umur bertunas, jumlah tunas,jumlah akar, panjang akar terpanjang, dan volume akar. Perlakuan terbaik terdapat pada kombinas perlakuan konsentrasi ekstrak bawang merah 100 g per100 ml air dan lama perendaman 7 jam.dan selama 20 hari telah terbentuk daun pada batang pohon jambu air madu.Kata kunci: Bawang Merah, Konsentrasi, air kelapa, Jambu Air Madu.
Peningkatan Nilai Tambah Pada Agroindustri Manggis Melalui Pengembangan Produk Teh dan Sirup Berbasis Kulit Manggis Santosa, Santosa; Derosya, Vioni; Asben, Alfi; Azrifirwan, Azrifirwan; Permata, Deivy Andhika; Fiana, Risa Meutia; Kasim, Fitriani; Neswati, Neswati; Ismanto, Sahadi Didi; Dewi, Kurnia Harlina; Rahmi, Ira Desri; Yulianto, Kiki; Putri, Annisa; Rahayu, Lisa; Saputra, Hendra; Rozalia, Rozalia; Sari, Dini Novita
PATRIOTIKA: Jurnal Inovasi dan Pemberdayaan Masyarakat Vol 1 No 1 (2025): May 2025
Publisher : Universitas Nahdlatul Ulama Sumatera Utara

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

Abstract

Limau Manis Village as Kampung Manggis is supported by the production of mangosteen in Padang City which is number 2 (two) in West Sumatra and 80% of mangosteen in Padang City comes from Pauh Subdistrict, with the center being in Limau Manis Village and the existence of Kampung Manggis brings hope for the community to improve their economy and will have an impact on the economy of the Padang City community. The skin of mangosteen fruit can be processed into value-added products. However, farmers and local businesses still face several challenges, such as the lack of knowledge and technology to process mangosteen peels into economically valuable products. Abundant mangosteen peels during the harvest season are often discarded or burned, causing environmental impacts such as soil and air pollution. However, due to the lack of public knowledge on mangosteen peel processing as waste, an innovative solution is needed to turn mangosteen peel waste into a new source of income through the development of competitive derivative products. This community service activity is designed as a strategic step to empower the community, optimize local potential, and build an innovative, sustainable mangosteen agroindustry, creating value-added products and improving the economic welfare of the community. In addition, this activity is also expected to be a model of agroindustry development based on local potential that can be developed. The purpose of this community service activity is to provide training in improving the knowledge, skills of the community in processing mangosteen skin, increasing the added value of mangosteen skin into mangosteen skin tea and mangosteen skin syrup products that have a broad impact on economic, social and environmental improvement.
Pemanfaatan Microwave untuk Meningkatkan Rendemen Distilasi Serai Wangi (Cymbopogon nardus) Studi Kasus Perbedaan Waktu Pemaparan Syahrani, Nia; Kasim, Anwar; Dewi, Kurnia Harlina; Rozalia, Rozalia
GreenTech Vol. 1 No. 2 (2024)
Publisher : Departmen Of Agro-industrial Technology, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/greentech.v1i2.20

Abstract

Serai wangi adalah salah satu tanaman penghasil minyak atsiri dengan komponen utama cironellal. Untuk memperoleh minyak atsirinya dilakukan pada umumnya dengan destilasi uap dan air. Pada penelitian ini di distilasi juga menggunakan metode uap dan air, yang sebelumnya diberikan perlakuan pendahuluan yaitu pemaparan daun serai wangi menggunakan microwave dengan variasi waktu : P0 (tanpa pemaparan), P1(2 menit), P2 (4 menit), P3 (6 menit), P4 (8 menit), P5 (10 menit). Penelitian ini bertujuan untuk mengetahui pengaruh lamanya waktu pemaparan serai wangi menggunakan microwave terhadap rendemen yang dihasilkan dan mengetahui kandungan senyawa di dalam minyak serai wangi. Parameter pengamatan adalah kadar air dan kadar minyak pada bahan baku serai wangi, rendemen, warna, bobot jenis, indeks bias, kelarutan dalam etanol 80%, dan analisis GC-MS pada minyak serai wangi. Analisis data dilakukan dengan ANOVA dan uji lanjut Duncan New Analysis Multiple Range Test (DNMRT) pada taraf 5%. Hasil penelitian didapatkan bahwa perlakuan pendahuluan pemaparan serai wangi menggunakan microwave berpengaruh signifikan terhadap rendemen hasil distilasi. Karakteristik minyak serai wangi pada pemaparan 10 menit menghasilkan rendemen sebanyak 1,43%; warna kuning pucat; bobot jenis 0,892 gr/ml; indeks bias 1,473; kelarutan dalam etanol 80% 1:2 jernih; kadar citronellal 17,28% dan kadar geraniol 20,39%.
Coffee Supply Chain in West Sumatra: A Systematic Literature Review Saputra, Hendra; Yunita, Imelda; Rozalia, Rozalia; Salim, Emil
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 5 No. 3 (2025): November 2025
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v5i3.242

Abstract

This systematic literature review explores the coffee supply chain in West Sumatra, a region renowned for its strong agricultural heritage and substantial coffee production. The study aims to synthesize previous research and identify key factors influencing the supply chain stages—production, processing, marketing, and distribution. Using a structured methodology based on systematic review protocols, this research integrates findings from various academic sources to provide a comprehensive understanding of the topic. The reviewed literature reveals both challenges and opportunities within the West Sumatran coffee supply chain. Major challenges include post-harvest quality management, limited market access, and low adoption of sustainable practices, all of which affect competitiveness. The findings highlight the importance of effective governance and stakeholder collaboration in improving operational efficiency and market adaptability. Additionally, technological innovation and digital marketing are recognized as crucial in transforming the supply chain, supporting smallholder farmers, and expanding market reach. Overall, this review underscores the complexity and significance of West Sumatra’s coffee supply chain, emphasizing the need for integrated, sustainable, and innovative strategies to strengthen resilience and global competitiveness.
Co-Authors Alfi Asben Andik Purwanto Annisa Putri Anwar Kasim Azrifirwan, Azrifirwan Dedy Hamdani Deivy Andhika Permata Derosya, Vioni Dini Novita Sari Emil Salim Fitriani Kasim Hendra Saputra Hendra Saputra Imelda Yunita Irawan, Surya Kiki Yulianto Kurnia Harlina Dewi Neswati Neswati Rahayu, Lisa Rahmi, Ira Desri Risa Meutia Fiana Sahadi Didi Ismanto Santosa Santosa Syahrani, Nia