Judul: Identiikasi Perubahan Jasa Lingkunga Dengan Menggunakan Penginderaan Jauh Dan Sistem Informasi Geografis Di Bogor
Abstrak: Jasa lingkungan merupakan jasa yang diberikan oleh fungsi ekosistem yang memiliki manfaat langsung maupun tidak langsung. Tujuan penelitian ini adalah menganalisis perubahan jasa lingkungan di Kabupaten dan Kota Bogor pada tahun 1990 dan 2014. Jasa lingkungan yang menjadi fokus kajian adalah jasa lingkungan stok karbon, daya rosot karbon, keanekaragaman hayati, keindahan lanskap, pengaturan tata air dan ameliorasi iklim. Pada tahun 1990 nilai rata-rata Jasa lingkungan secara keseluruhan di Kabupaten Bogor adalah 4.86 dan di Kota Bogor adalah 4.54, sementara itu pada tahun 2014 nilai rata-rata jasa lingkungan secara keseluruhan di Kabupaten Bogor adalah 4.30 dan di Kota Bogor adalah 3.72. Perubahan jasa lingkungan di Kota Bogor lebih besar daripada di Kabupaten Bogor, hal ini disebabkan oleh besarnya perubahan tipe penutupan lahan hutan menjadi lahan terbangun. Selain itu, juga disebabkan oleh adanya perbedaan kebijakan antara Pemerintah Kabupaten dan Kota Bogor. Kabupaten lebih berfokus pada sektor produksi pertanian dan Kota lebih berfokus pada sektor perdagangan dan jasa.
Keyword: jasa lingkungan, nilai jasa lingkungan, perubahan jasa lingkungan

Judul: Penggunaan Penginderaan Jauh dan SIG untuk Mengetahui Perubahan Penutupan Lahan dan Kecukupan Ruang Terbuka Hijau sebagai Rosot Karbondioksida (Studi Kasus; Kota Bogor Tahun 1991, 2000, dan 2012)
Abstrak: Bogor city is a residential as well as services city. The city have been experiencing land cover change, from nature to variety of infrastructure purpose. As a result, it will increase the air pollution especially CO2 in the atmosphere. One way that can be used to reduce level of air pollution is development of green open space in spatial planning in the city of Bogor. The results of the analysis of spatial and temporal Landsat imagery Bogor City area in 1991, 2000, and 2012 showed this land cover in general is dominated by sparse vegetation amounted to 3.221,09 hectares or 28,01%, 4.009,90 hectares or 34,86%, 4.114,36 hectares or 27,07%. Land cover changes during the two periods was decrease of agricultural land, sparse vegetation, shrubs, and open land. Meanwhile land cover the increase vegetation. The need for green space in the city of Bogor area could be determined by the approach of CO2 absorption. Based on the level of CO2 emissions in the city of Bogor need 29.770,25 hectares open space, the available open space only 4.040,28 hectares or 35,13%. The Bogor city need addition green open space approximately 25.729,97 hectares. Value of CO2 emissions in 2025 amounted to 61.103,38 Gg, so the vast green space required is 1.048.848,17 hectares of area assuming the actual circumstances in the field using image data 2012.
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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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