Judul: Tinjauan Tentang Fenomena Pemulung Dan  Penanganan Sampah di Wilayah DKI Jakarta  dan Bailtar Gebang Bekasi
Abstrak: Perkembangan wilayah di Indonesia terutama kota-kota seperti Jakarta seringkali menyebabkan perubahan struktur ekonomi yang terjadi tidak didukung oleh perubahan struktur tenaga keja secara proporsional. Akibatnya tidak tejadi penyerapan tenaga keia pada sektor industri seperti yang diharapkan sehingga tenaga keja yang menganggur beralih ke sektor informal. Salah satu contoh kegiatan sektor informal adalah pengumpulan barang bekas yang dilakukan oleh orang yang disebut sebagai pemulung.
Keyword: 

Judul: Potret Kehidupan Pemulung di Kota Depok (Studi Kasus Lapak Pemulung di Kelurahan Beji, Kecamatan Beji, Kota Depok, Provinsi Jawa Barat)
Abstrak: This research has been carried out in the slum of scavengers, at Beji Village, Beji Subdistrict, Depok, West Java. The Objectives of this research are: First, to know the characteristic, family, activity and settle description of scavengers. Second, to analyze the social interaction among scavengers, the social interaction between scavengers and their boss, and with their local community. Third, to know the existing institution among scavengers within its establishment and development process. The method of this research is qualitative approach that supported by case study technic consisting of in depth interview to focus on some cases, limited observation, and document analysis. Five families or nine scavengers have been selected as the representative cases of this research by purposing after determining spesific criteria in terms of this. The result of this research shows that there are several particular characteristics which reflected scavengers’ proffession. The pattern of social interaction among scavengers and their friends, scavengers and their boss have been running well. The scavengers have rarely social interaction to their local community in their surrounding slum based on this research. It is caused by their ashamedness to interact with the local community. The institution which related with the existence of scavengers is deemed to be important as one of the way for fulfilling their ultimate of life. The regulation concerned to the scavengers is initiated from interaction process among them till attain a collective agreement.
Keyword: 

Judul: Apatite Growth Optimation on Chicken Mucouse by Fourier Transform Infrared (FTIR) Characterization
Abstrak: Some experiment had been conducted to grow apatite from supersaturated solution of calcium phosphate ions on chicken mucouse. The calcium and phosphate ions were originated from Ca(NO3)2 and (NH4)2HPO4. Carbonate ions from (NH4)2CO3 was also used as starting solution. Experiment was carried out within about 5 hours at temperature 370 C and pH 7. Value of Ca+ : PO4 3- was 1.67, while molar ratio of CO3 2- : PO4 3- was 0.5 : 1. Molarity of molar ratio CO3 2- : PO4 3- variated approximately 0.15 : 0.30, 0.51 : 1.02, and 0.90 : 1.80. Mass of mucouse powder was constant 0.75 gram. The analysis result of Fourier Transform Infrared (FTIR) showed that the precipitation was apatite carbonate type A and B. In these experiment it was found out that the mucouse reduce the crystallinity of apatite precipitant, and the growth of apatite crystal was optimum at solution with molar ratio CO3 2- : PO4 3- about 0.15 : 0.30.
Keyword: