Judul: Analisis Manfaat Sosial Ekonomi Ruang Terbuka Hijau pada Normalisasi Waduk Ria Rio Jakarta
Abstrak: Increasing flood disaster in DKI Jakarta makes the government do some efforts to increase the quality of a reservoir and its environment through reservoir normalization program. The specific objective of this study is to identify the public perception towards the normalization of Ria Rio Reservoir and the socio economic benefits of it, estimate the number of willingness to pay of people around the Ria Rio Reservoir toward the effort of preservation of the open green space around it, and identify factors that affect the value of the willingness to pay of the community toward preservation efforts of the open green space around the Ria Rio Reservoir. The results of this study indicate that people's perception of each indicator to the development of open green space around the Ria Rio Reservoir is well worth. Socio-economic benefits of the normalization of Ria Rio Reservoir which has been enjoyed by society is the park can be used as a recreation area, the park become public sports facilities, they get entertainment by fishing in the reservoir, nearby the reservoir becomes strategic for selling things as many visitors and gain employment as sweepers and garbage collectors. The average yield of willingness to pay of 61 respondents who are willing to pay is IDR 44.836,07 per month per person. Factors that affect the 10% significance level were gender, age, income level, education level, residence status, and length of stay.
Keyword: willingness to pay, socio economic benefit, reservoir, open green space, normalization

Judul: Persepsi Masyarakat Kecamatan Penjaringan dan Pengelola Terhadap Kebijakan Normalisasi Waduk Pluit
Abstrak: Waduk Pluit memiliki peran yang besar di wilayah DKI Jakarta. Upaya optimalisasi Waduk Pluit menghadapi berbagai permasalahan, seperti pendangkalan waduk, pencemaran kualitas air, dan aktivitas masyarakat yang dapat memengaruhi kualitas Waduk Pluit. adanya pemukiman liar penduduk, sehingga menurunnya fungsi Waduk Pluit sebagai pengendali banjir dan sumber daya air. Dalam upaya mengatasi permasalahan, pemerintah telah melakukan berbagai upaya diantaranya adalah normalisasi waduk. Informasi mengenai tingkat persepsi, sikap serta tingkat kepuasan masyarakat serta pengelola penting untuk dipertimbangkan dalam pengelolaan Waduk Pluit. Tujuan penelitian ini yaitu menganalisis tingkat persepsi masyarakat dan pengelola terhadap fungsi, masalah dan kebijakan pengelolaan Waduk Pluit, menganalisis sikap masyarakat dan pengelola terhadap kebijakan pengelolaan Waduk Pluit, menganalisis tingkat kepuasan masyarakat dan pengelola terhadap kebijakan pengelolaan Waduk Pluit. Metode analisis menggunakan skala likert dan analisis supply-demand. Hasil penelitian menunjukkan bahwa tingkat persepsi baik pengelola maupun masyarakat masih rendah pada program pembebasan lahan dan relokasi rumah susun, program pengerukan waduk, dan program pembersihan dan penanganan sampah. Sikap yang masih rendah baik dari pengelola maupun masyarakat terhadap program pembebasan lahan dan relokasi ke rumah susun. Tingkat kepuasan yang masih rendah baik dari pengelola maupun masyarakat terhadap pembebasan lahan dan relokasi ke rumah susun dan juga terhadap program pengerukan waduk., Pluit Reservoir has a big role in the DKI Jakarta area. Efforts to optimize the Pluit Reservoir face various problems, such as silting the reservoir, water quality pollution, and community activities that can affect the quality of the Pluit Reservoir, the existence of illegal settlements of residents, thus decreasing the function of the Pluit Reservoir as a flood control and water resources. In an effort to overcome the problem, the government has made various efforts including normalization of reservoirs. Information regarding the level of knowledge / perception, attitudes and level of satisfaction of the community and management is important to consider in the management of the Pluit Reservoir. The purpose of this study is to analyze the level of knowledge / perceptions of the community and management regarding the functions, problems and management policies of the Pluit Reservoir, to analyze the attitudes of the community and management towards the Pluit Reservoir management policy, to analyze the level of community and management satisfaction with the Pluit Reservoir management policy. The analysis method uses a Likert scale and supply-demand analysis. The results showed that the level of knowledge / perception of both the management and the community was still low on the program of land acquisition and relocation of flats, reservoir dredging programs, and waste cleaning and handling programs. The attitude of both the management and the community is still low towards the land acquisition and relocation program to flats. The level of satisfaction that is still low both from management and the community regarding land acquisition and relocation to flats and also the reservoir dredging program.
Keyword: likert, supply-demand analysis, satisfaction, perception, attitudes, ikert, supply-demand analysis, satisfaction, perception, attitudes

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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