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All Journal JOURNAL OF EDUCATION SCIENCE Lantanida Journal Orbital: Jurnal Pendidikan Kimia JGEN : Jurnal Pengabdian Kepada Masyarakat
Adean Mayasri
UIN Ar-Raniry Banda Aceh
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice

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POTENSI BEBERAPA JENIS RUMPUT LAUT DI ACEH (STUDI KASUS: SKRINING FITOKIMIA DAN AKTIVITAS ANTIOKSIDAN) Adean Mayasri
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.10169

Abstract

One of the sea potentials in Aceh is seaweed. Seaweed contains secondary metabolites and antioxidants that are very well consumed because it can act as an antidote/protector from the free radicals. This study aimed to determine the secondary metabolite content and antioxidant activity of seaweed in Aceh.The seaweed that has been macerated then screened for phytochemicals and tested for antioxidant activity by using the DPPH method. The seaweed species found were Gracillaria verrucosa, Sargassum sp., and Chaetomorpha antennina. The results of this study indicated that Gracillaria verrucosa, Sargassum sp., and Chaetomorpha antennina seaweeds were contained by alkaloids and steroids. Flavonoid and saponins were only detected in the types of seaweed Gracillaria verrucosa and Sargassum sp. It was also found that the higher the concentration of the extract, the higher the percentage of IC50 against free radicals. The Sargassum sp. has a stable percentage of inhibition at a 2-10 ppm concentration, so it is recommended in this study to be considered cultivated in Aceh.
Perbandingan Model Pembelajaran Problem Based Learning dan Guided Inquiry Terhadap Kemampuan Berpikir Kritis pada Materi Laju Reaksi Adean Mayasri; Ratu Fazli Inda Rahmayani
JOURNAL OF EDUCATION SCIENCE Vol 5, No 1 (2019): April 2019
Publisher : Universitas Ubudiyah Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3314/jes.v5i1.360

Abstract

Telah dilakukan penelitian tentang perbandingan model pembelajaran Problem Based Learning dan Guided Inquiry terhadap kemampuan berpikir kritis mahasiswa pada materi laju reaksi. Penelitian ini dilakukan untuk mengetahui model pembelajaran yang paling sesuai untuk materi laju reaksi terhadap kemampuan berpikir kritis mahasiswa. Penelitian ini dilakukan pada dua kelas dengan jumlah sampel 23 orang pada masing-masing kelas dengan pretest-posttestnonequivalent design. Data dinalisis secara deskriptif-kuantitatif. Hasil penelitian menunjukkan data berdistribusi normal pada kedua kelas. Berdasarkan uji t sampel berpasangan pretest-posttest pada kedua kelas menunjukkan terdapat perbedaan kemampuan berpikir kritis pada awal dan akhir pembelajaran. Hasil posttest kedua kelas juga memiliki varian yang homogen. Hasil uji t sampel tidak berpasangan menunjukkan bahwa terdapat perbedaan rata-rata hasil belajar mahasiwa antara model pembelajaran model pembelajaran Problem Based Learning dan Guided Inquiry. Nilai posttest rata-rata kelas eksperimen I dan II berturut-turut adalah 78,70 dan 70,39, sehingga dapat disimpulkan bahwa pembelajaran dengan menggunakan model Problem Based Learning lebih baik untuk kemampuan berpikir kritis pada materi laju reaksi dibandingkan dengan model pembelajaranGuided Inquiry.Kata Kunci: Guided Inquiry, Problem Based Learning, model pembelajaran, kemampuan berpikir
Persepsi Mahasiswa terhadap Pembelajaran Daring Berbasis Video dengan Bantuan Pen Tablet Selama Pandemi Covid-19 Muhammad Reza; Rosi Hamama; Sulmia Maulida; Nurmalahayati Nurdin; Adean Mayasri; Noviza Rizkia
Orbital: Jurnal Pendidikan Kimia Vol 5 No 2 (2021): Orbital: Jurnal Pendidikan Kimia
Publisher : Chemistry Education Department of Education and Teaching Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ojpk.v5i2.9216

Abstract

Online learning requires students to be more independent in learning. For example, chemistry learning tends to contain abstract concepts (very theoretical), so it requires a more detailed description and explanation. To help solve this problem, we need a media that can make it easier for students to learn during online learning. The purpose of this study was to determine student perceptions or responses to learning using teaching videos. The method used in this research is descriptive quantitative, which will produce a description of quantitative data related to student perceptions of the results of the Cronbach Alfa test. The instruments in this study were questionnaires, and learning outcomes test questions. The sample consisted of 102 students. Before being used, video-based learning media with the help of a pen tablet were validated by media and material experts, both in terms of construction and concepts contained in the learning media. The validation results obtained an average value of 0.91 which means it is very valid. Further analysis using reliability showed the Cronbach Alfa coefficients were 0.88, respectively; 0.92; 0.93 consecutively for aspects of knowledge, media and convenience. In order to be accepted by the media as learning media, it is necessary to look at student responses to aspects of knowledge (P) where the average value is 3.96 which is classified as good, media (M) 4.02 and convenience (K) 3.81 are also included in good category.
FERMENTASI MOLASE DARI TETES TEBU SEBAGAI ALTERNATIF BAHAN BAKAR TERBARUKAN Adean Mayasri
Lantanida Journal Vol 11, No 1 (2023)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v11i1.15474

Abstract

Molasses fermentation from molasses has been studied as an alternative to renewable energy. The goal of this research was to determine molasses fermentation as an alternative to renewable energy. The goal of this research was to monitor the alcohol concentration and pH levels during the fermentation process. This study employed a completely randomized design (CRD) method with two components. Factor A is the amount of time required for aeration. Molasses dilution is factor B. Factor A was tested across four different time periods: 24, 48, 72, and 96 hours. Factor B was tested using three different ratios: 1: 1.5, 1: 2, and 1: 2.5. The calculations of alcohol content FcalcP = 74.35> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79 revealed that components A and B had a significant impact on the final alcohol content. The BNJ 1% was calculated to be 0.63. This demonstrates that A4B3 is the most effective treatment. FcalcP = 2.85> Ftable (11; 36; 0.05) = 2.07 and Ftable (11; 36; 0.01) = 2.79, indicating that factors A and B have a highly substantial effect on acidity (pH). The BNJ 5% was obtained at a value of 0.61. This also demonstrates the optimal acidity conditions in A4B3 therapy. Based on these findings, it is clear that aeration for 96 hours and dilution with a 1: 2.5 ratio produce the greatest outcomes and the maximum alcohol content. At a pH of 4.45, the average bioethanol content is 6.31%.
PELATIHAN STANDARDISASI PENGELOLAAN LABORATORIUM BAGI LABORAN DAN PENGELOLA LABORATORIUM IPA DI KOTA BANDA ACEH Muhammad Nasir; Adean Mayasri
JGEN : Jurnal Pengabdian Kepada Masyarakat Vol. 1 No. 1 (2023): Vol. 1 No. 1 (2023): JGEN : Jurnal Pengabdian Kepada Masyarakat, Juni 2023
Publisher : Lumbung Pare Cendekia

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

Abstract

Telah dilakukan kegiatan pengabdian kepada masyarakat dalam bentuk pelatihan standardisasi pengelolaan laboratorium bagi laboran/pengelola laboratorium IPA di Kota Banda Aceh. Pelatihan ini dilaksanakan untuk meningkatkan pengetahuan dan keahlian para laboran/pengelola laboratorium IPA (Fisika, Biologi, dan Kimia) jenjang SMA/SMK di Kota Banda Aceh. Materi pelatihan terdiri dari etika profesi laboran, alat dan bahan laboratorium, penataan alat dan bahan, teknik kerja di laboratorium, karakteristik laboratorium, serta pengelolaan kesehatan dan keselamatan kerja di laboratorium. Metode kegiatan pelatihan terdiri dari ceramah, presentasi kelompok, diskusi, tanya jawab, serta pretest dan posttest untuk evaluasi. Kegiatan ini dilaksanakan selama empat hari, dari 31 Mei hingga 3 Juni 2022 bertempat di Cabang Dinas Pendidikan Wilayah Kota Banda Aceh dan Kabupaten Aceh Besar, Jalan Geuchik H. Abd Jalil Nomor 1 Lamlagang Banda Aceh. Hasil pengamatan menunjukkan bahwa para peserta yang berjumlah 60 orang ini sangat antusias dalam mengikuti kegiatan. Para peserta berpartisipasi secara aktif dalam memanfaatkan diskusi selama proses kegiatan dan pada saat penutup tiap sesi kegiatan. Instrumen penilaian yang digunakan adalah empat puluh soal pilihan ganda yang diberikan dalam bentuk pretest dan posttest. Hasil kegiatan pelatihan ini dianggap berhasil berdasarkan hasil evaluasi para peserta dari nilai rata-rata pretest yang diperoleh 48 meningkat saat posttest menjadi 91. Melalui kegiatan pelatihan dan peningkatan capaian nilai evaluasi diharapkan para laboran/pengelola laboratorium IPA jenjang SMA/SMK di Kota Banda Aceh lebih kompeten dalam mengelola laboratorium sesuai standar yang telah ditetapkan secara nasional.
Co-Authors Muhammad Nasir Muhammad Reza Noviza Rizkia Nurmalahayati Nurdin Ratu Fazli Inda Rahmayani Rosi Hamama Sulmia Maulida