Judul: Analisis Kelayakan Ekonomi dan Keberlanjutan Program Urban Farming di DKI Jakarta
Abstrak: Urban farming DKI Jakarta merupakan program yang diinisiasi oleh pemerintah provinsi dengan tujuan utama untuk meningkatkan kualitas lingkungan hidup melalui luasan area tutupan hijau produktif yang sekaligus untuk mendukung pangan lokal di wilayah DKI Jakarta. Pelaksanaan program urban farming saat ini masih belum banyak dilakukan oleh masyarakat di DKI Jakarta bahkan banyak wilayah yang awalnya terlibat dalam urban farming, saat ini sudah tidak aktif menjalankan program tersebut. Oleh karena itu, penelitian ini bertujuan untuk: (1) Menganalisis persepsi multistakeholder terhadap adanya program urban farming di DKI Jakarta; (2) Mengestimasi kelayakan finansial dan ekonomi program urban farming di DKI Jakarta; dan (3) Menganalisis keberlanjutan program urban farming di DKI Jakarta. Metode analisis yang digunakan dalam penelitian ini adalah analisis deskriptif dengan skala likert, analisis kelayakan finansial dan ekonomi, dan analisis keberlanjutan menggunakan pendekatan MDS-Rapfish. Hasil penelitian menunjukkan bahwa persepsi masyarakat terhadap program urban farming cenderung sangat baik terutama pada aspek keindahan dengan nilai skala likert 3,74 atau sangat setuju. Sebanyak 91,67% urban farming DKI Jakarta menunjukkan NPV dan BCR layak secara ekonomi, sedangkan secara finansial 58,34% urban farming memiliki NPV dan BCR yang layak. Status keberlanjutan program urban farming memiliki nilai indeks 58,21 artinya program urban farming DKI Jakarta memiliki status cukup berkelanjutan.
Keyword: Cost Benefit Analysis (CBA), Multi Dimensional Scaling (MDS), Urban Agriculture, Rapfish

Judul: Model kebijakan pengembangan pertanian perkotaan berkelanjutan (studi kasus: Wilayah DKI Jakarta)
Abstrak: Revitalization of agriculture is basically putting back the importance of agriculture in proportion and urban contexts. Considering the condition of agriculture in urban areas, especially areas of Jakarta and linkages with various environmental problems. It is expected that development of agriculture would not be sustainable. So it needs design action and formulation of comprehensive policy for sustainable development of urban agriculture. The study was aimed to analyze the sustainability of urban agriculture, to analyze the critical factors affecting the sustainability and policy of development urban agriculture. Analysis techniques used were MDS (multi-dimensional scaling) technique Rap-Ur-Agri (Rapid Appraisal for Urban Agriculture), an important factor with factor analysis level (leverage factor) and determination of sustainable agricultural development policy scenarios with a prospective analysis. Sustainability status of agricultural development on the condition of existing urban areas show an index value of 48.70% or less sustainable. Key factors for sustainability of urban agriculture are 4 (four) key factors, and attributes of stakeholders' needs are 4 (four) key factors. The light factors have been merged, so that it acquired six key factors that affect the development of urban agriculture systems. Scenarios of agricultural development policy of sustainable urban areas of Jakarta conducted with an integrative approach by improving the performance of atribute and six key factors: (1) yard size, (2) the development of commodity and environmentaly sound technology, (3) extension and agricultural institutions, (4) availability of urban land space, (5) cooperation among stakeholders, and (6) provision of agricultural incentives. MDS simulation results show that the pesimistic scenario with low improvement result sustainability index value 49.06%, moderate improvement scenario result sustainability index value 63.65% and optimistic scenario with the maximum improvement condition result sustainability index value at 76.85%. Development of policy direction consist of expansion of urban agriculture land and farm space, yards and fields/orchards, the development of environmentally friendly commodities and technology, social and institutional development of agriculture in the implementation strategy outlined.
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Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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