Judul: Analisis Ketimpangan Pembangunan Wilayah di Kabupaten Bogor
Abstrak: The purpose of these study are: (1) understand and identify the linkages between economic sectors in Bogor Regency, (2) understand the inter-area development districts in Bogor, (3) understand and identify the pattern of development activity in the sector, Bogor regency, and (4) recommend policy direction to sectoral development priorities in Bogor to reduce regional development disparities. This research was conducted in Bogor, West Java, with unit area of observation there were 40 subdistricts in Bogor. The result of updating the 2008 IO table analysis is showed that, (1) the sector of non-oil & gas industry (INM), and sector of electricity, gas and water supply (LGA) has a key sector in Bogor regency. This sector has the power distribution and a strong degree of sensitivity; (2) the economic activity is concentrated in the center area of Bogor regency, but physical activity has started to spread out from the middle region of Bogor district, namely the western and eastern parts of Bogor Regency; (3) in economic activity, the pattern of regional economic development was still in the near town area of Bogor (center region). But physically (landuse), physical development pattern of the area has moved out of the area west of Bogor regency. (4) variables that have relationships with the regional development disparities in Bogor Regency are the ratio of human resources with the hierarchy of the region in 2006, the ratio of human resource with hierarchy of the region in 2008, and hierarchy of the region in 2006 with hierarchy of the region in 2008.
Keyword: 

Judul: Analisis keterkaitan struktur potensi permasalahan pembangunan dan upaya pengembangan wilayah kabupaten Bogor bagian barat
Abstrak: Struktur potensi dan permasalahan pembangunan yang dihadapi oleh tiap-tiap wilayah berbeda-beda. Perbedaan ini dapat berakibat pada ketimpangan pembangunan, baik ketimpangan antar sektor maupun antar wilayah. Untuk itu diperlukan perencanaan pembangunan agar tercipta pemerataan pembangunan dan hasil-hasilnya di setiap lapisan masyarakat pada masing-masing wilayah. Beberapa indikator utama yang berkaitan dengan proses pembangunan antara lain adalah: aktifitas perekonomian yang secara sederhana dapat diukur dengan Produk Domestik Regional Bruto (PDRB) dan tingkat inflasi, pola penggunaan lahan, produktivitas tahan, serta ketersediaan sarana dan prasarana. Dari kelima indikator tersebut dapat dianalisis struktur potensi dan permasalahan dalam proses pembangunan wilayah, dalam hal ini pembangunan daerah. Tujuan dari penelitian ini adalah (1) menganalisis struktur potensi dan permasalahan pengembangan wilayah Kabupaten Bogor bagian Barat berdasarkan lima indikator, yakni: PDRB. tingkat inflasi, pola penggunaan lahan, produktivitas tahan, serta ketersediaan sarana dan prasarana, (2) menentukan hirarki Wilayah Bogor bagian Barat berdasarkan ketersediaan sarana dan prasarana sebagai fasilitas yang dimiliki setiap wilayah, (3) mengelompokkan wilayah-wilayah kecamatan di Kabupaten Bogor bagian Barat berdasarkan potensi dan struktur permasalahan yang terkait dengan kelima indikator tersebut, (4) menentukan rekomendasi pengembangan Wilayah Kabupaten Bogor bagian Barat berdasarkan stuktur potensi dan permasalahan dari kelima indikator tersebut.
Keyword: Regional development, development planning, Development potential  and problems

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.
Keyword: