Judul: Analisis Perubahan Penutupan Lahan di Kota Sukabumi, Jawa Barat dengan Menggunakan Penginderaan Jauh dan Sistem Informasi Geografis (SIG).
Abstrak: Perkembangan suatu wilayah dapat dilihat dari bagaimana pembangunan yang dilakukan, baik dari segi fisik dan non-fisiknya. Pembangunan kota yang secara terus-menerus dilakukan merupakan hasil integrasi dari kondisi yang ada di pedesaan yang terus berlanjut. Pembangunan pesat yang terjadi pada suatu kota bersifat dinamis dan cenderung diiringi dengan proses terjadinya perubahan penutupan lahan kota di masa mendatang, dimana lahan-lahan alami maupun Ruang Terbuka Hijau semakin terdesak oleh dominasi lahan terbangun. Kota Sukabumi saat ini dapat dikatakan sebagai kota berkembang dan menjadi salah satu kawasan andalan dari 8 kawasan andalan di Jawa Barat (RTRW Jawa Barat) yang berpotensi selain memacu perkembangan wilayahnya juga mendorong pertumbuhan wilayah-wilayah di sekitarnya (hinterland). Hal inilah yang dapat berimplikasi terhadap proses terjadinya konversi lahan di kota Sukabumi. Tujuan dari penelitian ini adalah untuk mengetahui kondisi penutupan lahan kota Sukabumi pada tahun 1999 dan 2006 serta untuk mengetahui seberapa besar perubahan penutupan lahan yang terjadi di kota Sukabumi pada rentang waktu tahun 1999 sampai 2006 dan faktor apa saja yang mempengaruhinya. Penelitian ini dilakukan di wilayah kota Sukabumi, Propinsi Jawa Barat meliputi seluruh wilayah administratif kota yang terdiri dari 7 kecamatan yaitu Kecamatan Cikole, Kecamatan Citamiang, Kecamatan Cibeureum, Kecamatan Gunung Puyuh, Kecamatan Warudoyong, Kecamatan Baros, dan Kecamatan Lembursitu. Kegiatan penelitian ini dilaksanakan dari bulan Juni sampai November 2009.
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Judul: Perubahan Penggunaan/Penutupan Lahan dan Faktor yang Mempengaruhinya (Studi Kasus: Kota Sukabumi, Jawa Barat)
Abstrak: The strategic position of Sukabumi City between Jabodetabek and Bandung Raya intensified the development in this region. It implied to the high of land use/land cover change (LUCC) in Sukabumi City. We utilized IKONOS in 2010 and 2012 to determine LUCC pattern. Furthermore, multiple regression was employed to find out affecting factors of LUCC. Skalogram analysis was then utilized to find out the level of regional development, descriptive analysis to correlate LUCC and level of regional development, and benchmarking of current utilization to evaluate the conformity of current land use/land cover with Spatial Plan (RTRW). The spatial analysis showed that within two years, built up area of Sukabumi increased at 2.8% while rice field and unproductive land decreased at 1.2% and 1.9% respectively. Factors affecting of LUCC in Sukabumi City were the availability of land; distance to CBD, allocation of Spatial Plan (RTRW); distance to economic, education, and medical facilities; regional development index; and the increase of population. Unproductive land change into agricultural land occured in 2nd hierarchy and 3rd hierarchy, whereas agricultural land change into built up area and unproductive land change into built up area occured in all of the hierarchy. Land use/land cover in 2012 conformed with RTRW was 36.6%, while 45.1% was undeveloped, and 2.3% was unconfirmed the plan.
Keyword: regional development, factors of change, land use/land cover change

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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