Judul: The Effect of Farm Field Conversion Towards The Loss of Paddy Farming Income and The Factors Influencing It. (Case Study at South Bogor Regency)
Abstrak: Kecamatan Bogor Selatan pada saat ini memiliki lahan pertanian yang luas. Seiring dengan meningkatnya aktifitas pembangunan dan pertambahan penduduk, kebutuhan lahan meningkat. Hal ini menyebabkan alih fungsi lahan pertanian. Tujuan penelitian ini adalah: (1) Mengestimasi dampak alih fungsi sawah terhadap pendapatan usahatani padi yang hilang di Kecamatan Bogor Selatan, (2) Menganalisis faktor-faktor yang mempengaruhi terjadinya perubahan penggunaan lahan di Kecamatan Bogor Selatan. Faktor-faktor yang mempengaruhi alih fungsi lahan dianalisis secara mikro menggunakan model regresi logistik. Dampak yang terjadi dianalisis dengan menggunakan rata-rata selisih perbedaan pendapatan sebelum dan sesudah lahan di konversi. Hasil menunjukkan bahwa faktor-faktor yang mempengaruhi alih fungsi lahan pertanian adalah luas lahan, proporsi pendapatan, jarak, dan harga lahan. Rata-rata pengurangan pendapatan petani setelah alih fungsi lahan sebesar Rp 1 023 658/musim., At present, South Bogor Regency has a wide farm field. As the activity of the development and the growth of population increases, the need of farm field increases. This causes the change of farm field function. The aim of this research were (1) to estimate the effect of the change of farm field function towards the loss of paddy farming income in South Bogor Regency, (2) to analyze factors influencing this change in South Bogor Regency. The factors influencing the change were analyzed in micro analysis by using logistic regression model. The occuring effects were analyzed by using the average difference of income before and after the conversion of land. The results showed that the factors influencing this change were the land width, the proportion of income, distance, and the price of land. The average decrease of farmer income after the change of land use was Rp 1 023 658/ season.
Keyword: Alih Fungsi Lahan Pertanian, Analisis Pendapatan, Analisis Regresi Logistik

Judul: Analisis Dampak Ekonomi dari Alih Fungsi Lahan Pertanian ke Non Pertanian Terhadap Ketahanan Pangan di Kabupaten Bogor.
Abstrak: Population growth in Bogor Regency increasing year by year. Along with population growth, there is also increasing food needs that related to agricultural sector. Currently, changes to the transformation of the economic development towards the direction of industrial development and manufacturing. In addition, increasing population growth requires residential development. This case, indicated agricultural land conversion. The aims of the study were to know the rate of agricultural land conversion in Bogor Regency, to find out the factors which affect, and to analyze the economic effect and an appropriate policy in the control of agricultural land conversion. Agricultural land conversion in Bogor Regency has been fluctuated year by year. The average of land conversion in Bogor Regency was 0,01 percent per year or 7,1 hectar per year. On this study showed that the increasing density of society and the paddy productivity were affected to the agricultural land conversion. Meanwhile, the agricultural land conversion will affect change of the farmer‟s total income before and after land conversion amount of Rp 52.176 in month. The average income before the conversion amount of Rp 1.931.157 and the average income amount of Rp 2.878,96. Beside the farmer‟s total income, the agricultural land conversion also caused the reducing of paddy production. The average loss of paddy production per hectare converted land was 2.878,96 tons per year, while the average loss production value was Rp 7.771.656.534,60 in paddy forms and Rp 8.518.512.570,00 in rice forms. The estimation result of food security in Bogor Regency showed that rice production has not adequated the needs of rice in 2002- 2011.
Keyword: Effect, Bogor Regency, Agricultural land conversion, Bogor Agricultural University (IPB)

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: