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MAZWAN MAZWAN
Universitas Al Washliyah Darussalam Banda Aceh
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Energy Environmental Science Health Professions Immunology & microbiology Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary

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Isolation and characterization of polyhydroxyalkanoate (PHA) producing bacteria isolate from landfill land of Kampung Jawa Banda Aceh MAZWAN MAZWAN; FEBRIANI FEBRIANI; NAZARUDDIN NAZARUDDIN
Jurnal Natural Volume 23 Number 1, February 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v23i1.29746

Abstract

The production of biodegradable plastic from microorganisms has great potential as a substitute for conventional plastic. This study aims to isolate bacterial strains capable of polyhydroxyalkanoates (PHAs) production from the Kampung Jawa landfill land (KJLL) and characterize biopolymers. The bacterial strains were able to produce PHA using a mineral salt medium (MSM) with glucose as a carbon source. The qualitative screening of PHA-producing bacteria was conducted by Sudan Black and Nile Red. Of the 64 bacteria strains, only 41 were able to accumulate PHA in Sudan Black and Nile Red. The results showed that one bacteria the Coccobacillus strain had the highest color intensity for further characterization of PHA. The characterization of PHA by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) showed a melting temperature (Tm) of 101.54°C. X-ray diffraction (XRD) analysis revealed a crystalline structure with an index crystallinity (ICr) value of 15.82% for PHA. The results of the analysis proved that PHA was produced by bacteria isolate. This study suggests that this is the first report of the bacteria from the Kampung Jawa landfill producing PHA with good characteristics and potential biotechnology applications. 
Isolation and characterization of polyhydroxyalkanoate (PHA) producing bacteria isolate from landfill land of Kampung Jawa Banda Aceh MAZWAN MAZWAN; FEBRIANI FEBRIANI; NAZARUDDIN NAZARUDDIN
Jurnal Natural Volume 23 Number 1, February 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v23i1.29746

Abstract

The production of biodegradable plastic from microorganisms has great potential as a substitute for conventional plastic. This study aims to isolate bacterial strains capable of polyhydroxyalkanoates (PHAs) production from the Kampung Jawa landfill land (KJLL) and characterize biopolymers. The bacterial strains were able to produce PHA using a mineral salt medium (MSM) with glucose as a carbon source. The qualitative screening of PHA-producing bacteria was conducted by Sudan Black and Nile Red. Of the 64 bacteria strains, only 41 were able to accumulate PHA in Sudan Black and Nile Red. The results showed that one bacteria the Coccobacillus strain had the highest color intensity for further characterization of PHA. The characterization of PHA by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) showed a melting temperature (Tm) of 101.54°C. X-ray diffraction (XRD) analysis revealed a crystalline structure with an index crystallinity (ICr) value of 15.82% for PHA. The results of the analysis proved that PHA was produced by bacteria isolate. This study suggests that this is the first report of the bacteria from the Kampung Jawa landfill producing PHA with good characteristics and potential biotechnology applications. 
Strategi Petani Lahan Kering Aceh Besar Dalam Menghadapi Ancaman Perubahan Iklim Terhadap Ketahanan Pangan Mazwan Mazwan; Muhammad Falik Arsa; Irwan Syahputra; Minarni Minarni
Jurnal Pendidikan Geosfer Vol. 10 No. 2 (2025): Jurnal Pendidikan Geosfer
Publisher : Universitas Syiah Kuala, Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpg.v10i2.373-386

Abstract

Perubahan iklim menimbulkan ancaman serius terhadap ketahanan pangan, terutama di wilayah tropis dengan sistem pertanian lahan kering yang bergantung pada pola iklim. Penelitian ini menganalisis strategi adaptasi petani lahan kering di Kabupaten Aceh Besar terhadap dampak perubahan iklim menggunakan pendekatan kualitatif dengan metode studi kasus di empat gampong: Indrapuri, Sibreh, Blang Bintang, dan Lhong. Data diperoleh melalui wawancara mendalam, observasi, dan dokumentasi, kemudian dianalisis menggunakan Sustainable Livelihoods Framework (SLF). Hasil menunjukkan bahwa perubahan pola musim, peningkatan suhu, dan kekeringan berkepanjangan menurunkan produktivitas pertanian. Petani merespons dengan menyesuaikan waktu tanam, memilih varietas tahan kering, menggunakan pupuk organik, dan menerapkan tumpangsari. Namun, keterbatasan akses teknologi, informasi iklim, dan dukungan kelembagaan masih menghambat adaptasi. Ketahanan pangan di lahan kering Aceh Besar sangat bergantung pada peningkatan kapasitas adaptif petani melalui pendidikan iklim dan inovasi pertanian berkelanjutan. ABSTRACT Climate change poses a serious threat to food security, particularly in tropical regions where dryland farming systems are dependent on climate patterns. This study analyzes the adaptation strategies of dryland farmers in Aceh Besar Regency to the impacts of climate change using a qualitative approach with a case study method in four villages: Indrapuri, Sibreh, Blang Bintang, and Lhong. Data were obtained through in-depth interviews, observation, and documentation, then analyzed using the Sustainable Livelihoods Framework (SLF). The results indicate that changing seasonal patterns, increasing temperatures, and prolonged droughts reduce agricultural productivity. Farmers respond by adjusting planting times, selecting drought-resistant varieties, using organic fertilizers, and implementing intercropping. However, limited access to technology, climate information, and institutional support still hamper adaptation. Food security in the drylands of Aceh Besar is highly dependent on increasing farmers' adaptive capacity through climate education and sustainable agricultural innovation
Penerapan Konsep Green Chemistry dalam Mitigasi Dampak Pencemaran Laut pada Ekosistem Pesisir Aceh Mazwan Mazwan; Evi Mauliza; Minarni Minarni; Agustizar Agustizar; Jhon Wahidi
Jurnal Pendidikan Geografi Undiksha Vol. 14 No. 1 (2026): Jurnal Pendidikan Geografi Undiksha
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpg.v14i1.101029

Abstract

The coastal Aceh area of is facing serious marine pollution, primarily caused by human activities such as tourism, fishing, and the improper disposal of household waste and plastic. This situation disrupts the ecological balance and degrades the environmental quality of the coastal ecosystem. This study aims to evaluate the extent of marine pollution and explore the potential application of green chemistry principles as a sustainable mitigation strategy. A mixed-methods approach was used, combining field observations, interviews with local residents and tourism stakeholders, and laboratory analysis of water and sediment samples collected from three coastal sites Ujong Batee in Aceh Besar Regency. The findings reveal a significant decline in seawater quality, indicated by high levels of Biochemical Oxygen Demand (BOD) and heavy metals such as lead and mercury, which exceed acceptable environmental limits. The main contributing factors are inadequate waste management and low environmental awareness. In conclusion, green chemistry offers a promising solution through eco-friendly technologies and community involvement, supported by effective policies and continuous environmental education.
Pemetaan Potensi Geowisata Berbasis SIG Di Kawasan Kota Sabang Muhammad Falik Arsa; Mazwan Mazwan; Muhjam Kamza; Ericka Dwi Purwati; Zulfikri Zulfikri
Jurnal Pendidikan Geosfer Vol. 11 No. 1 (2026): Jurnal Pendidikan Geosfer
Publisher : Universitas Syiah Kuala, Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpg.v11i1.25-37

Abstract

ABSTRAKPenelitian ini bertujuan untuk mengidentifikasi dan memetakan potensi geowisata di Kota Sabang melalui pendekatan Sistem Informasi Geografis (SIG). Kajian ini menggunakan metode deskriptif-kuantitatif dengan menerapkan analisis spasial berbasis overlay dan pembobotan kriteria geowisata yang meliputi aspek geologi, estetika lanskap, aksesibilitas, dan nilai edukatif. Lokasi penelitian mencakup seluruh kawasan Kota Sabang, sementara pengambilan sampel dilakukan secara purposif  berdasarkan keunikan geologi dan ketersediaan data spasial. Data dikumpulkan melalui observasi lapangan, wawancara terstruktur, serta pemanfaatan peta geologi, citra satelit, dan data administratif. Hasil analisis menunjukkan bahwa beberapa lokasi, seperti Gunung Api Jaboi, Air Panas Pria Laot, dan Pantai Anoi Itam, memiliki potensi geowisata tinggi berdasarkan skoring kuantitatif. SIG berperan penting dalam integrasi data dan penyusunan peta tematik, sehingga dapat digunakan sebagai dasar dalam pengambilan keputusan pengembangan geowisata yang berkelanjutan. Temuan ini menggarisbawahi pentingnya pelibatan masyarakat lokal, konservasi sumber daya geologi, dan perencanaan berbasis spasial dalam pengelolaan potensi wisata geologi Kota Sabang. Kata Kunci: Geowisata, SIG, Kota Sabang, Pemetaan Spasial, Potensi Geologi ABSTRACTThis study aims to identify and map geotourism potential in Sabang City using a Geographic Information System (GIS) approach. This study uses a descriptive-quantitative method by applying overlay-based spatial analysis and weighting of geotourism criteria that include geological aspects, landscape aesthetics, accessibility, and educational value. The research location covers the entire Sabang City area, while sampling was conducted purposively based on geological uniqueness and the availability of spatial data. Data were collected through field observations, structured interviews, and the use of geological maps, satellite imagery, and administrative data. The analysis results indicate that several locations, such as Jaboi Volcano, Pria Laot Hot Springs, and Anoi Itam Beach, have high geotourism potential based on quantitative scoring. GIS plays an important role in data integration and the preparation of thematic maps, so that they can be used as a basis for decision-making for sustainable geotourism development. These findings underscore the importance of local community involvement, geological resource conservation, and spatial-based planning in managing Sabang City's geological tourism potential. Keywords: Geotourism, GIS, Sabang City, Spatial Mapping, Geological Potential
Peran Manajemen Rumah Sakit Dalam Mendukung Fungsi Pendidikan Di Rsud Zainal Abidin Fajri Fajri; Mazwan Mazwan; Fauziah Fauziah; Ellyza Fazlylawati; Arza Rufli
Public Health Journal Vol. 2 No. 4 (2025): October–December, Occupational Health and Safety
Publisher : Teewan Journal Solutions

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62710/m9ceqd69

Abstract

Rumah sakit pendidikan memiliki peran strategis dalam pengembangan sumber daya manusia kesehatan melalui penyelenggaraan pendidikan, pelatihan, dan penelitian. RSUD Zainal Abidin sebagai rumah sakit rujukan utama di Aceh tidak hanya berfungsi sebagai penyedia layanan kesehatan, tetapi juga sebagai wahana pendidikan bagi mahasiswa kedokteran, keperawatan, dan tenaga kesehatan lainnya. Penelitian ini bertujuan untuk menganalisis peran manajemen rumah sakit dalam mendukung fungsi pendidikan di RSUD Zainal Abidin. Penelitian menggunakan pendekatan kualitatif dengan desain studi kasus. Teknik pengumpulan data meliputi wawancara mendalam dengan pimpinan manajemen rumah sakit, tenaga pendidik klinik, serta peserta didik, observasi non-partisipatif, dan telaah dokumen kebijakan. Hasil penelitian menunjukkan bahwa manajemen rumah sakit berperan penting dalam perencanaan strategis pendidikan, penyediaan sumber daya, pengaturan tata kelola pendidikan klinik, serta pengawasan dan evaluasi mutu pendidikan. Namun demikian, masih ditemukan beberapa kendala, seperti keterbatasan fasilitas pembelajaran, beban kerja tenaga kesehatan yang tinggi, serta belum optimalnya sistem monitoring dan evaluasi pendidikan. Penelitian ini menyimpulkan bahwa penguatan komitmen manajemen dan integrasi fungsi pelayanan dengan pendidikan secara berkelanjutan diperlukan untuk meningkatkan kualitas rumah sakit pendidikan.
Co-Authors Agustizar Agustizar Arza Rufli Ellyza Fazlylawati Ericka Dwi Purwati Evi Mauliza Fajri Fajri Fauziah Fauziah Febriani Febriani Irwan Syahputra Jhon Wahidi Minarni Minarni Minarni Minarni Muhammad Falik Arsa Muhammad Falik Arsa Muhjam Kamza NAZARUDDIN NAZARUDDIN NAZARUDDIN NAZARUDDIN Zulfikri Zulfikri