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Developing a Research-Integrated PjBL Model and Descriptive Assessment for Laboratory and Science Process Skills Khusna Arif Rakhman; Indra Cipta; Nurfatimah Sugrah; Dira Ayu Annisa; Ni Made Wiratini; Nurbaiti Kumendong
Jurnal Pendidikan MIPA Vol 27, No 1 (2026): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v27i1.pp124-151

Abstract

This study aims to describe the implementation of environmentally friendly chemistry lessons and projects and the associated levels of students’ laboratory and science process skills. The Research-Integrated Project-Based Learning (RPjBL) model was proposed as a framework for developing industrially applicable processes for the synthesis of silver nanoparticles (AgNPs) using bioreduction agents derived from nature. The model was developed using the ADDIE (Analysis, Design, Development, Implementation, Evaluation) model to describe the steps involved in synthesizing AgNPs. The sample consisted of 21 students who completed assessments of their laboratory and science process skills and their project performance. Expert reviews of the RPjBL model and the accompanying instruments (learning modules, instructional syntax, and assessment instruments) were performed through focus group discussions (FGDs) and the Delphi technique. The content validity of the RPjBL model, along with the supporting assessment instruments, was evaluated via Aiken's V analysis. The overall content validity was over 0.87. Reliability for each instrument was measured using Cronbach's alpha; the results indicated very good reliability (all > 0.70). Student assessment data demonstrate that students have a high level of proficiency in laboratory techniques, including the preparation of chemicals and materials (mean = 80.95), chemical handling (mean = 82.86), and performing laboratory procedures (mean = 80.00). Assessment of students' ability to perform the science processes demonstrated exceptionally high proficiency, especially in observing (mean = 88.10) and interpreting data (mean = 90.48). Assessment of students' project performance (using several measures of how well students understood the research process and the quality of their project presentations) had a mean of 75.69. Inferential analysis using Pearson’s correlation indicated a positive, but non-significant, relationship between students’ laboratory and science process skills. Overall, these findings suggest that the RPjBL model has the potential to integrate research-based education and green chemistry into the laboratory experience. Keywords: research-integrated project-based learning, green chemistry, laboratory skills, science process skills.
BRANDING BATIK KHAIRUNQU: PENGEMBANGAN MOTIF BATIK KEARIFAN LOKAL MALUKU UTARA Nurfatimah Sugrah; Khusna Arif Rakhman; Dira Ayu Annisa; M. Lubhan Dewo Lasaratu; Sundari Sundari; Iis Ayub Wahab Hamsir; M. Ridha Haykal Amal
Jurnal Pengabdian Masyarakat Khatulistiwa Vol 8, No 2 (2025): NOPEMBER
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpmk.v8i2.5455

Abstract

ABSTRACTThis community service program aims to develop KhairunQu Batik as a university startup by integrating local wisdom from North Maluku into its cultural branding. The program was initiated through the exploration of regional flora and fauna, such as the Paok bird (Pitta maxima), Halmahera angel bird (Semioptera wallacii), Skipjack tuna (Katsuwonus pelamis), Jelyfish (Scyphozoa), Clove (Syzygium aromaticum), Nutmeg (Myristica fragrans), and Butterfly pea flower (Clitoria ternatea), which were transformed into aesthetic batik motifs. Additionally, a distinctive hand-drawn pattern, known as Pusaka Khairun, was designed to emphasize authenticity and cultural heritage. The design process combined traditional and modern elements to ensure harmony and symbolic representation, while branding strategies focused on strengthening identity and market competitiveness. Digital promotion via social media has reached over 300 viewers across Indonesia, while direct promotion through the University of Khairun creative product expo attracted more than 1,000 visitors, with 200 recorded at the KhairunQu Batik stand. These outcomes indicate that university startups can play a strategic role in preserving local wisdom, fostering entrepreneurship, and creating sustainable creative industries. Overall, the project demonstrates that integrating cultural heritage with innovation and branding strengthens both community identity and economic potential, making KhairunQu Batik a representative model for university-based cultural startups.Keywords: Community empowerment, local wisdom, batik branding, creative economy, KhairunQu batikABSTRAKProgram pengabdian masyarakat ini bertujuan untuk mengembangkan KhairunQu Batik sebagai startup universitas dengan mengintegrasikan kearifan lokal dari Maluku Utara ke dalam branding budayanya. Program ini diinisiasi melalui eksplorasi flora dan fauna daerah, seperti burung Paok (Pitta maxima), Bidadari Halmahera (Semioptera wallacii), Cakalang (Katsuwonus pelamis), Ubur-ubur (Scyphozoa), Cengkeh (Syzygium aromaticum), Pala (Myristica fragrans), dan bunga Telang (Clitoria ternatea), yang ditransformasikan menjadi motif batik yang estetis. Selain itu, pola batik tulis yang khas, yang dikenal sebagai Pusaka Khairun, dirancang untuk menekankan keaslian dan warisan budaya. Proses desain menggabungkan elemen tradisional dan modern untuk memastikan harmoni dan representasi simbolis, sementara strategi branding difokuskan pada penguatan identitas dan daya saing pasar. Promosi digital melalui media sosial telah menjangkau lebih dari 300 pengunjung di seluruh Indonesia, sementara promosi langsung melalui pameran produk kreatif Universitas Khairun menarik lebih dari 1.000 pengunjung, dengan 200 tercatat di stan Batik KhairunQu. Hasil ini menunjukkan bahwa startup universitas dapat memainkan peran strategis dalam melestarikan kearifan lokal, menumbuhkan kewirausahaan, dan menciptakan industri kreatif yang berkelanjutan. Secara keseluruhan, proyek ini menunjukkan bahwa memadukan warisan budaya dengan inovasi dan pencitraan merek memperkuat identitas masyarakat dan potensi ekonomi, menjadikan KhairunQu Batik sebagai model representatif bagi perusahaan rintisan budaya berbasis universitas.Kata Kunci: Pemberdayaan masyarakat, kearifan lokal, branding batik, ekonomi kreatif, batik KhairunQu
Project-Based Learning in Chemistry: Improving Laboratory Skill through Gravimetric Alkaloid Analysis of Local Natural Materials Nurfatimah Sugrah; Khusna Arif Rakhman; Nur Jannah Baturante; Indra Cipta; Ni Made Wiratini; Agung Abadi Kiswandono; Dimas Saman
PAEDAGOGIA Vol 29, No 2 (2026): PAEDAGOGIA Jilid 29 No 2 (2026)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/paedagogia.v29i2.108402

Abstract

Conventional chemistry laboratory instruction often separates theoretical understanding from practical activities, limiting students’ opportunities to develop integrated knowledge and laboratory skills. Project-Based Learning (PjBL) has been widely recognized as an effective approach to promote active, collaborative, and experiential learning in chemistry education. This study implemented PjBL in an analytical chemistry laboratory course involving 21 students, with samples divided into four groups. Students conducted projects on the isolation and gravimetric determination of alkaloids from local natural materials in North Maluku. Learning outcomes were evaluated through observations of laboratory activities, data analysis, collaboration, and research poster presentations. The imple mentation of PjBL showed high student participation (91.7%) and improved laboratory skills, including chemical handling, gravimetric analysis, data management, and scientific communication. Students successfully produced research reports and posters, while most participants reported enjoyable learning experiences, increased motivation, and improved collaboration and problem-solving skills. Research-based PjBL effectively integrates theoretical knowledge and laboratory practice, while supporting the development of laboratory competence, collaborative learning, and scientific communication skills among chemistry education students.
PENGGUNAAN EKSTRAK TEMBAKAU SEBAGAI INHIBITRO PADA BETON BERTULANG MENGGUNAKAN PASIR LAUT DAN AIR LAUT Mufti Amir Sultan; Muhammad Yunus Hi Abbas; Abdul Gaus; Khusna Arif Rakhman; Nurtalia Barmawi
Teras Jurnal : Jurnal Teknik Sipil Vol. 10 No. 1 (2020): Volume 10 Nomor 1
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v10i1.264

Abstract

Korosi dapat didefenisikan secara umum sebagai pengrusakan bahan oleh lingkungannya. Struktur beton bertulang akan mengalami kerusakan akibat serangan korosi, apabila tidak ditangani akan membutuhkan biaya yang relative mahal untuk memperbaikinya. Korosi pada baja tulangan harus ditangani secara khusus. Oleh sebab itu diperlukan solusi untuk mengatasi masalah ini. Pencegahan korosi bergantung pada jenis korosi yang terjadi pada material terkorosi. Salah satu metode yang terus di kaji saat ini adalah pencegahan korosi dengan menggunakan inhibitor. Dalam penelitian ini, inhibitor yang digunakan adalah inhibitor ekstrak daun tembakau dengan variasi dan konsentrasi yang telah ditentukan yakni 0%,4% dan 8%. Metode yang digunakan untuk menganalisis laju korosi yang terjadi yaitu metode Weight Loss (kehilangan berat). Pengujian dilakukan dengan cara memberikan aliran listrik terhadap benda uji dengan menggunakan voltase sebesar 5V. Pengaliran dilakukan secara bertahap dengan interval tertentu, sehingga diperoleh efeisiensi inhibisi dalam satuan persen. Hasil penelitian menunjukkan pengaruh penambahan inhibitor ekstrak tembakau dengan metode weight loss pada konsentrasi 4% dan 8% mampu menurunkan rapat arus anodik dan katodik yang mengakibatkan laju korosi pada baja tulangan, Peningkatan konsentrasi inhibitor ekstrak tembakau pada masing-masing variasi campuran beton memiliki efesiensi inhibitor yang baik yakni 64,44%  dengan air pencampur air tawar dan 20% untuk air laut pada setiap konsentrasi inhibitor 8% ekstrak tembakau.