Judul: Analisis Peran Kelembagaan Ekonomi Lokal terhadap Pemanfaatan Perairan dalam Pengelolaan Ikan Larangan (Studi Kasus Ikan Larangan Desa Sungai Pasak Kota Pariaman)
Abstrak: This research based on management of fisheries resources by community Desa Sungai Pasak in West Sumatera. Management of fisheries resources is known as ikan larangan. Ikan larangan is a kind of fisheries management system that applies closing seasons to fishing in a portion of river or canal for a certain period. The purpose of this study was to indentify management of fisheries institutional, transaction cost, and describe the benefit from management of ikan larangan Desa Sungai Pasak. The research method are purposive sampling and snowball sampling. Another method of supporting the result interview are observations and documentation. The result of research showed that Ikan larangan areas is under the management of community from village government and local comunity representative. Management cost for ikan larangan include operational cost (IDR 12 000 000) and transaction cost (IDR 8 000 000 anually). Field observation shows that the management of the ikan larangan areas has a positive impact on the villagers. Some of the benefits from the system are fisheries resources in the open waters are kept sustainable, facilitating brotherhood among the villagers, and generating income for villagers
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Judul: Analisis pola kelembagaan masyarakat nelayan dalam pembangunan wilayah pesisir: studi kasus di kota Tarakan Propinsi Kalimantan Timur
Abstrak: Sumberdaya wilayah pesisir dan laut bersifat open access dan common property, sehingga cenderung di eksploitasi tanpa memikirkan aspek elestariannya, berakibat timbulnya over fishing, terancamnya stabilitas umberdaya perikanan, dan inefisiensi pemanfaatan sumberdaya. Peranan elembagaan masyarakat nelayan penting dalam pengelolaan sumberdaya ini Jalam hal pengaturan batas kewenangan, hak kepemilikan, dan aturan representasi. Dengan demikian mampu mendukung perbaikan kesejahteraan yang merupakan faktor penting partisipasi masyarakat nelayan dalam pembangunan dan pengembangan wilayah pesisir (desa pantai). Tujuan Penelitian ini untuk (1). Mengetahui kondisi pemanfaatan sumberdaya perikanan laut di kota Tarakan, (2). Mengetahui pola dan peranan kelembagaan masyarakat nelayan dalam pengaturan pengelolaan sumberdaya perikanan laut secara berkelanjutan, (3). Mengetahui aspek-aspek pendukung aktivitas kelembagaan dalam pembangunan dan pengembangan wilayah pesisir.. Penelitian dilaksanakan di Kota Tarakan Propinsi Kalimantan Timur, dengan metode Bioekonomi Copes, Analisis Kelembagaan Deskriftif, Analisis Biaya Transaksi, dan Analisis Konflik (Game Theory). Hasil Penelitian menunjukkan bahwa (1) Kondisi pemanfaatan sumberdaya perikanan laut di Kota Tarakan telah mengalami biological overfishing dan economical overfishing, (2) Surplus konsumen pada kondisi open access dan terkendali yaitu Rp 923.853.554 dan Rp 443.055.784, sedangkan surplus produsen Rp 5.411.769,230 dan Rp. 3.993.316.582,- (3) Kelembagaan masyarakat nelayan berpola kelompok nelavan-ponggawa cikal bakal dari hubungan nelayan ponggawa Kelembagaan ini cukup berperan dalam - pengaturan pemanfaatan sumberdaya perikanan laut yang berkelanjutan demi kesejahteraan masyarakat nelayan. (4). Faktor-faktor yang menentukan perubahan kondisi aktual ke optimal pemanfaatan sumberdaya perikanan laut oleh nelayan (a). kapasitas teknologi (b). hasil tangkapan 2 tahun terakhir, (c). kemudahan target hasil tangkapan per trip, (d). kemudahan menjual hasil tangkapan, (e). Kemudahan memperoleh modal, (f). kemudahan memperoleh pekerjaan sampingan (5). kelancaran aktivitas kelompok nelayan-ponggawa dipengaruhi oleh beberapa aspek yaitu: (a). Potensi sumberdaya perikanan laut, (b) Potensi sumberdaya manusia dan kapital masyarakat nelayan, (c). Potensi sumberdaya ekonomi wilayah, (d). Jalinan kemitraan dengan pihak lain, (e). Kondisi sosial ekonomi masyarakat nelayan
Keyword: Fisherman, Coastal area

Judul: Characterization of CoCrMo alloy with titanium nitride and hydroxyapatite-chitosan coating
Abstrak: Endoprosthetic is moving tool for implant in the body, made of metals or polymers. Stainless steel, Co-based alloys, and Ti materials are widely used for implant materials. Co alloy used is CoCrMo which has excellent properties such as good biocompatibility, corrosion resistant, good mechanical properties such as hardness, strength, and high wear resistance, supporting its utilization as an implant material. CoCrMo alloy was synthesized using tri arc furnace with heating temperature of 3000 °C. TiN coating using plasma sputtering and nitriding method, characterized by a layer of gold. The content of Ti in the layer was 3.85% (w/w), whereas the content N was difficult to determine. Hydroxyapatite (HAp) was synthesized using wet method with Ca source of chicken eggshell and P source of H3PO4 80%. HAp-chitosan composite coating aimed at improving the biocompatibility and corrosion resistance of CoCrMo. In vitro test showed that CoCrMo with TiN and HAp-chitosan coating had excellent corrosion resistance in liquid medium infusion, whereas samples HAp and CoCrMo with TiN coatings and HAp-chitosan had high level of toxicity in endothelial cell culture tests.
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