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All Journal Dimas: Jurnal Pemikiran Agama untuk Pemberdayaan Pendidikan Matematika Jurnal Kimia Riset JURNAL KONSELING GUSJIGANG Chimica et Natura Acta Jurnal Agrotek UMMat Jurnal Kartika Kimia JURNAL FARMASI GALENIKA Akuntansi : Jurnal Akuntansi Integratif Jurnal Ilmiah Profesi Pendidikan Jurnal Farmagazine Journal of Biology Learning Jurnal Abdimas Kartika Wijayakusuma Jurnal Manajemen DIVERSIFIKASI Jurnal Ilmiah Ibnu Sina (JIIS): Ilmu Farmasi dan Kesehatan Journal of Agritechnology and Food Processing TERAPUTIK: Jurnal Bimbingan dan Konseling JURNAL ILMIAH PENELITIAN MAHASISWA Inaba of Community Services Journal Science, Technology, and Communication Journal Jurnal Farmasi Galenika
Dewi Kurnia
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Hotspot RW 02 Digital: Internet Swadaya Masyarakat Untuk Pembelajaran Daring di Lingkungan RW 02 Kelurahan Pelindung Hewan Kecamatan Astanaanyar Bandung Kurnia, Dewi; Asnawi, Aiyi; Andriansyah, Ivan; Ziska, Rahma
Jurnal Abdimas Kartika Wijayakusuma Vol 1 No 2 (2020): Jurnal Abdimas Kartika Wijayakusuma
Publisher : LPPM Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (713.618 KB) | DOI: 10.26874/jakw.v1i2.81

Abstract

Abstrak: Pandemi COVID-19 yang sedang melanda dunia berdampak pada berbagai aspek kehidupan, salah satunya dunia pendidikan. Untuk mencegah terjadinya penularan virus COVID-19, maka kegiatan belajar mengajar tidak bisa dilakukan secara tatap muka melainkan dengan cara daring. Pembelajaran dengan sistem daring ini menimbulkan permasalahan baru, salah satunya ketersediaan jaringan internet sebagai sarana belajar daring. Lingkungan RW 02 Kelurahan Pelindung Hewan, Kecamatan Astanaanyar Kota Bandung, merupakan daerah padat penduduk yang hampir di setiap rumah memiliki setidaknya 1 orang anggota keluarga yang berstatus sebagai pelajar. Namun, tidak semua warga mampu menyediakan jaringan internet untuk anggota keluarganya. Untuk mengatasi hal tersebut, penyediaan jaringan internet yang murah perlu diadakan dengan memanfaatkan daya swadaya masyarakat dan didukung oleh tenaga profesional agar kelangsungan proses belajar daring bisa berjalan lancar. Pada program pengabdian masyarakat ini telah dibangun tiga lokasi hotspot di RW 02 yang dapat digunakan oles siswa-siswi untuk pembelajaran daring. Biaya yang dikenakan kepada pengguna lebih murah dibandingkan penyedia internet komersil lainnya. Masyarakat RW 02 merasa terbantu dengan adanya fasilitas ini sehingga memotivasi untuk menjaga program ini agar dapat menjadi sistem yang berkelanjutan dan berkesinambungan. Kata kunci: belajar daring, internet, pandemi COVID-19, swadaya masyarakat
Upaya Meningkatkan Pemahaman Siswa pada Pelajaran Agama Islam Materi Mengenal Kitab Allah melalui Metode Make A Match Siswa Kelas V SDN 21 Pilubang Ali Imran; Putri Ayu; Zomiliarif Zomiliarif; Dewi Kurnia
JURNAL ILMIAH PENELITIAN MAHASISWA Vol 2 No 5 (2024): Oktober
Publisher : Kampus Akademik Publiser

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jipm.v2i5.1390

Abstract

This study was motivated by the low level of understanding among fifth-grade students at SDN 21 Pilubang regarding the material on learning about the books of Allah in Islamic Religious Education. The pre-cycle results showed that only 11% of students achieved learning completeness with a score of ≥80, while the majority of students were still below the Minimum Completeness Criteria (KKM). This condition was influenced by the use of a lecture method that lacked variety, causing students to become passive, bored, and unenthusiastic in learning. To overcome this problem, this study applied the Make a Match method as a cooperative learning strategy that emphasized student activity in finding pairs of question and answer cards interactively. This study is a Classroom Action Research (CAR) conducted in two cycles, with 15 fifth-grade students as research subjects. Data were collected through tests, observations, and documentation, then analyzed descriptively, quantitatively, and qualitatively. The results showed a significant increase in student understanding. In cycle I, learning completeness increased in terms of activity, although the achievement rate was still only 11%. However, in cycle II, the percentage of learning completeness rose to 38%, with teacher and student activity reaching 100%. Thus, the Make a Match method proved to be effective in improving students' understanding in learning about the books of Allah.
Peningkatan Hasil Belajar Pendidikan Agama Islam Dengan Menerapkan Model Pembelajaran Kolaborasi Pada Siswa Kelas III SDN 21 Pilubang Ali Imran; Putri Ayu; Zomiliarif; Dewi Kurnia
JURNAL ILMIAH PENELITIAN MAHASISWA Vol 2 No 5 (2024): Oktober
Publisher : Kampus Akademik Publiser

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jipm.v2i5.1421

Abstract

This study aims to determine the steps for implementing a collaborative learning model in Islamic Education (PAI) lessons in grade III at SDN 21 Pilubang and to identify the improvement in learning outcomes achieved. This study uses the Classroom Action Research (CAR) method with grade III students as subjects on the material “Understanding Sentences in the Qur'an.” The results showed that the application of the collaborative learning model could significantly improve student learning outcomes. At the beginning (pre-test), 15 students scored below 65 and only 9 students scored above 65. After the intervention in cycle I, learning outcomes improved, with 10 students scoring above 65, 6 students scoring 65, and 8 students still scoring below 65. Improvements in cycle II showed even better results, with 20 students scoring above 65, while only 4 students still scored below 65. The percentage of learning completeness also increased from 38% in the pre-cycle, 67% in cycle I, and 83% in cycle II. Thus, the application of the collaborative learning model proved to be effective in improving the PAI learning outcomes of third-grade students at SDN 21 Pilubang in accordance with the expected objectives.
Aktivitas antioksidan dengan metode cuprac dan penetapan kadar fenolat total pada ekstrak dan fraksi makroalga Eucheuma cottonii Kurnia, Dewi; Rohmah, Desita; Anggraeni, Vina Juliana
Jurnal Agrotek Ummat Vol 9, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i4.11116

Abstract

Antioxidants are compounds that can counteract free radicals. The macroalgae Euchema cottonii belongs to a type of seaweed from the Rhodophyta which is thought to have antioxidant activity. In this study, the antioxidant activity was tested using the CUPRAC method using spectrophotometry at 450 nm and the determination of total phenolic compounds in the extract and macroalgae fraction Eucheuma cottonii using the Folin Ciocalteu method. The extraction method was carried out using the maceration method with 70% ethanol and fractionation using ECC with n-hexane, ethyl acetate, and methanol-water (20% v/v). The results of TLC monitoring of Eucheuma cottonii showed the presence of flavonoid compounds, phenols, alkaloids, steroids, and triterpenoids. The results of the antioxidant activity test showed that the EC50 for the ethanol extract and the n-hexane, ethyl acetate, and methanol-water fractions were 89.11; 143.40; 100.02 and 90.22 g/ml respectively with EC50 vitamin C as a comparison of 6,86 g/ml. The results of the determination of the total phenolate content of the ethanol extract and the fractions of n- hexane, ethyl acetate, and methanol-water were 2.77; 1.96; 2.76; and 3.09 mg/GAE per 100 mg extract. The ethanol extract had a strong antioxidant activity with an EC50  89.11 g/ml and the highest total phenol content was in the methanol-water fraction of 3.09 mg/GAE per 100 mg extract. The results showed that the ethanolic extract of the macroalga Eucheuma cottonii has the potential as an alternative source of antioxidants.
Aktivitas antibakteri ekstrak dan fraksi makroalga Eucheuma cottoni terhadap bakteri penyebab jerawat Kurnia, Dewi; Suhardiman, Aris; Nurdiansyah, Hedy; Ghazali, Mursal
Jurnal Agrotek Ummat Vol 9, No 2 (2022): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jau.v9i2.6161

Abstract

Acne is a skin disease that often occurs in adolescence and even adulthood, characterized by the presence of blackheads, papules, pustules, nodes, and cysts on the face, neck, upper arms, chest, and back. Although not life-threatening, acne can affect a person's quality of life by giving a bad psychological effect in the way a person assesses, perceives and responds to his condition and situation. The aim of this study is to asses the antibacterial activity of the extract and fraction of the macroalgae Euchema cottonii against acne-causing bacteria, namely Propionibacterium acnes and Staphylococcus epidermidis. The extraction method used was maceration, using 96% p.a ethanol as a solvent and fractionation using the ECC method with three solvents with different polarity levels, namely n-hexane, ethylacetate and ethanol. The activity test was carried out using the paper disc and micro dilution method with the comparison antibacterial clindamycin. The results showed that there was no antibacterial activity from either the extract or fraction of macroalgae Euchema cottonii against the bacteria Propionibacterium acnes, but there are activity from the extract and fraction (n-hexane and ethylacetate) against the Staphylococcus epidermidis bacteria with the MBC value at a concentration of 15% and MIC at a concentration of 5% (for the extract and n-hexane fraction), while for the ethylacetate fraction the MIC value was at a concentration of 10%. Therefor, the strength of the antibacterial activity of the extract and fraction of Eucheuma cottoni is in the weak category.
Molecular Docking and Molecular Dynamics Study of Phlorotannin-Derived Metabolites from Brown Macroalgae (Sargassum sp.) as Potential α-Amylase Inhibitors Asnawi, Aiyi; Silviana, Lilis; Andriansyah, Ivan; Kurnia, Dewi; Febrina, Ellin; Dinata, Deden Indra
Jurnal Kimia Riset Vol. 10 No. 2 (2025): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkimris.v10i2.75900

Abstract

Type 2 diabetes mellitus (T2DM) is a widespread global health issue, characterized by insulin resistance and impaired a-amylase activity—an enzyme essential for carbohydrate metabolism. Phenolic compounds derived from brown macroalgae have been identified as potential a-amylase inhibitors and are promising candidates for the development of novel antidiabetic agents. This study aimed to explore the molecular interactions between phlorotannin-derived metabolites from Sargassum sp. and the α-amylase enzyme (PDB ID: 1B2Y) through in silico approaches, including molecular docking and molecular dynamics simulations. Molecular docking was performed using AutoDock 4.2, followed by molecular dynamics (MD) simulations using GROMACS to assess the stability of the ligand–enzyme complexes. The results revealed that dieckol (S06) and 6,6′-bieckol (S07) showed the strongest binding affinity with a docking score of -9.57 and -8.95 kcal/mol, respectively and the most favorable binding free energy (ΔTOTAL -56.87 kcal/mol), suggesting its strong potential for stable interaction with the enzyme. These results highlight the potential of dieckol and 6,6′-bieckol as effective α-amylase inhibitors.
The Activity of Unripe Wood Apple (Limonia acidissima Groff) Peel and Flesh Extracts in Inhibiting Diarrhe-Causing Bacteria Idar, Idar; Sukmawati, Ika Kurnia; Kurnia, Dewi; Nurjanah, Tina Siti; Hutasoit, Lestari
Chimica et Natura Acta Vol 13, No 3 (2025)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v13.n3.60492

Abstract

Diarrhea is characterized by having liquid stool more often than usual, typically occurring three or more times within a 24-hour period. While rarely fatal, it can disrupt daily life and is often treated with antibiotics due to pathogens like Bacillus cereus, Shigella flexneri, and Salmonella typhimurium. An overgrowth of Escherichia coli can also be a contributing factor. Recent studies suggest that unripe wood apples may have antibacterial properties. This study evaluates the antibacterial activity of extracts from the peel and flesh of the fruit against the bacteria, as mentioned earlier. Using disk diffusion, microdilution, and bioautography methods, it was found that the ethanol extract inhibited Bacillus cereus and Shigella sonnei, while the flesh extract affected Bacillus cereus and Escherichia coli. The bioautography test, however, showed no antibacterial activity from either extract, likely due to their low concentration. In conclusion, the peel and flesh extracts of unripe wood apples exhibit potential antibacterial activity against diarrhea-causing bacteria, particularly Bacillus cereus.
Co-Authors Abdullah, Hewa Yaseen Aiyi Asnawi Ali Imran Amelia, Sintia Andi Besse Tenriawaru Andriansyah, Ivan Anggraeni, Vina Juliana Aris Suhadirman Budiana, Wempi Budiana, Wempi Dadih Supriadi, Dadih Deden Indra Dinata, Deden Indra Destrinelli Destrinelli Diana, Nana Ellin Febrina Emma Emawati Emma Emawati, Emma Evidawati, Evidawati Fitri Bella Mustika Sari Hamdi, Muhammad Harahap, Nur Hasanah Hutasoit, Lestari Idar Idar idar idar Idar, Idar Idar, Idar Juandi Juandi KOSASIH KOSASIH, KOSASIH Lia Marliani Lukitasari, Leni Mardhiani, Yanni Dhiani Muhammad Sofwan Nadya Prisdayanti Nurani Hafsyah Nurdiansyah, Hedy Nurjanah, Tina Siti Prika Aprilliana, Dhea Putri Ayu Rahayu, Kiki Dwi Rasimin Rasimin, Rasimin Rohmah, Desita Roni, Asep Roni, Asep Rum, Ira Adiyati Sabrina Wiyanpuri, Rahma Saktioto Saktioto Saputra, Muhammad Deni Sari, Putri Aprilia Silviana, Lilis Sinta Purnamasari Sintia Amelia Suhardiman, Aris Sukmawati, ika kurnia Suryadi Suryadi Syamsiar, Syamsiar Syamswisna , Umaro, Syifa Qudwatul Villia Anggraini Wiwik Handayani Yateno Yateno Yupapin, Preecha Zakiyah, Farah Zeily Nurochman Ziska, Rahma Zomiliarif Zomiliarif Zomiliarif