Judul: Partisipasi anggota pada kegiatan ekonomi di Posdaya Sejahtera Kelurahan Bubulak, Bogor Barat
Abstrak: Bidang ekonomi terbentuk untuk membantu anggota Posdaya dalam meningkatkan taraf hidup anggota ekonomi Posdaya. Kegiatan ekonomi Posdaya memerlukan partisipasi dan keikutsertaan anggota dalamproses pengembangan kapasitas untuk meningkatkan kegiatan ekonomi di Posdaya Sejahtera. Tujuan penelitian ini untuk dapat mengetahui apakah terdapat hubungan karakteristik individu dan keikutsertaan pengembangan kapasitas dengan tingkat partisipasi anggota dalam kegiatan ekonomi di Posdaya Sejahtera.Penelitian ini menggunakan data kuantitatif yang didukung dengan data kualitatif dengan menggunakan uji Chi square dan Rank Spearman. Penelitian ini menggunakan metode sensus dengan jumlah responden sebanyak 24 responden. Hasil penelitian ini menunjukkan bahwa variabel yang memiliki hubungan adalah keikutsertaan pengembangan kapasitas dengan tingkat partisipasi pada tahap pengambilan keputusan, pelaksanaan dan tahap evaluasi. Pada tingkat partisipasi tahap pemanfaatan hasil berdasarkan jenis usaha tidak memilki hubungan yang signifikan.
Keyword: Economics, Participation, Capacity building, Posdaya, Human ecology, Bank spearman, Chi-square, Bottom upprogram

Judul: Tingkat Partisipasi dan Kemandirian Masyarakat dalam Bidang Ekonomi Program Posdaya (Kasus Posdaya Bina Sejahtera Kelurahan Pasir Mulya Kota Bogor)
Abstrak: Posdaya program is a service institution on family empowerment provided for community to reach welfare through integrated eight family functions. This study aims to analyze both internal and external factors dealing with participation and independence and the relation between community’s participation and independence in the economic view upon “posdaya” program of Bina Sejahtera Posdaya. The study used explanatory research designs involving 87 respondents; namely, the community becoming the members and participants of posdaya. The technique used to determine the samples was simple random sampling, while the method to gather data was by survey. Data were then analyzed by applying descriptive statistics including frequency, percentile, score mean, score total, and cross tabulation. Meanwhile, to test the correlation, Tau B- Kendall with the help of SPSS version 17 was used. It was found that community’s participation in economic view was significantly low in the aspects of planning, implementing, and evaluating the results, whereas the aspect of enjoying the result fell into the low level. Conversely, the independency on mental attitude belonged to the high level. Furthermore, the internal factors that showed an obviously positive correlation with participation were formal education, family income, and cosmopolitans, whereas the external factors comprised the support for family, the roles of both key persons and assistance. Moreover, the external factors which were positively correlated with independence were family support and the roles of the key persons and assistance. Likewise, the significantly positive correlation was found in the level of participation and independence of the community in the economic view of posdaya program.
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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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