Judul: Analisis Spasial Perubahan Penggunaan dan Fragmentasi Lahan di Wilayah Pinggiran Jakarta
Abstrak: Human activities will affect on an increasing of land-use change and landscape structure associated with the level of land fragmentation. This research aims to assess the dynamics of land use change and the fragmentation level of agricultural land and built-up land in peri urban of Jakarta. The existence of paddy fields, excavation C and forests accelerate the dynamics of land use change significantly in the study area. The result of agricultural land fragmentation analysis shows that districts which were closer to large cities tend to have lower NumP parameter, which indicates that built-up polygon has united into a single compact polygon. Areas affected by major cities i.e Jakarta and Depok has small TE and NumP, while MPS value was only influenced by the proximity to Depok. The analysis of built-up land fragmentation shows that the fringe of big city has a smaller rate of NumP and TE and more significant decrease of MPS compared to region farther from the big city. NumP, TE and MPS can be used to determine the rate of development and the pattern of development in the region. Areas affected by large cities are likely to have a stable lower rate of development with a homogeneous built-up land, whereas the distant regions to big cities are possibly to have a complex and greater rate of development with a heterogeneous built-up land. The results of multiple regression analysis for the village and neighborhood (RT) scale show that the main variables influencing agricultural land fragmentation are land ownership and accessibility, while factors affecting builtup land fragmentation are land ownership, land prices and accessibility.
Keyword: Bogor Agricultural University (IPB), TE, NumP, multiple regression analysis, MPS, land fragmentation, distance

Judul: Analisis Perubahan Penggunaan Lahan Pada Berbagai Kelas Kemampuan Lahan Dan Keterkaitannya Dengan Aksesibilitas Menuju Pusat-Pusat Pertumbuhan (Studi Kasus Sub DAS Ciliwung Hulu, Kawasan Puncak-Bogor)
Abstrak: Along with Depok, Tangerang, Bekasi (DETABEK), Regency and Municipality of Bogor are located near Jakarta (for about 60 km), hence are influenced economically from Jakarta's growth. It implies that BODETABEK serves as Jakarta's suburban and is known widely as the buffer. These areas are reserved to accept overflows of investment on economic development of Jakarta. The areas are supported by their contiguous spatial setup with enhanced access such as primary road networks and highways. This amenity is shown by duration of travel between Bogor and Jakalia which takes less than 1 hour and therefore attracts people who takes jobs in Jakarta to reside in Bogor. Results of remotely -sensed image classification indicate that the biggest conversion occurs in paddy field areas which decreases to 13,72 % and forested areas which decreases to 43,2 % from previous state (year 1991 - 2001). Urbanized areas rise up to 14,66 %. Classification of land capability shows that Class VI acreage is about 441,43 Ha. It is shown that most ofland utilizations are used inappropriately in comparasion to their actual capabilities. Employing Hayashi 2 (Axis 1) and Multinomial Logit, we find similar results between both of them. Andisols; Climate of III C; Slope class of 8 - 15 %; and the second grade of land capability is the most influencing factors. Instead we also find inconsistencies of the results from both. Distance to nearest roads and its growth centers is the most influencing factor to land use change. On analysis of Hayashi 2 (Axis 3) and Multinomial Logit, we find that the most influenced factor is land capability and distance nearest roads and to growth centers . Scatterplot was employed to illustrate patterns between land use changes, III particular for the conversion patterns of the Forest-Upland Field, ForestSettlement, Forest-Paddy Field, Paddy Field-Upland Field, and Upland FieldSettlement and their relations to four types of distance setup: to nearest roads, to Bogor CBD, to Jakarta CBD, and Cipanas CBD. There are no such patterns observed in this research. Further, conversions, are indicated to all areas regardless of the distance to both growth centers or road networks.
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Judul: Shark (Centrophorus sp.) Liver Oil Enriched  with Omega-3 Concentrate as an Immunostimulant
Abstrak: Minyak hati ikan cucut kaya akan squalene namun rendah omega-3. Squalene dan omega-3 diketahui masing-masing memiliki efek imunostimulan. Penelitian terkait pengaruh pemberian minyak ikan mengandung komponen squalene dan omega yang tinggi terhadap imunitas belum pernah dilakukan. Penelitian ini menggunakan minyak hati ikan cucut yang ditambahkan dengan konsentrat omega- 3 pada konsentrasi tertentu. Penambahan omega-3 pada minyak hati cucut akan meningkatkan kandungan asam lemak tak jenuh pada minyak ikan yang dapat mengakibatkan minyak ikan lebih mudah mengalami oksidasi. Penambahan antioksidan dapat memperpanjang masa simpan produk. Penelitian ini bertujuan menganalisis pengaruh penambahan konsentrat omega-3 pada minyak hati cucut sebagai imunostimulan melalui uji in vitro dan mengetahui pengaruh konsentrasi antioksidan terhadap oksidasi minyak ikan selama penyimpanan. Penambahan konsentrat omega-3 pada minyak hati cucut menunjukkan efek imunostimulan yang lebih tinggi dibandingkan minyak kontrol berdasarkan nilai viabilitas splenosit dan fagositosis makrofag. Penambahan antioksidan pada minyak dapat menghambat oksidasi minyak hati cucut selama penyimpanan hingga 30 hari pada suhu ruang untuk semua sampel, namun pada konsentrasi 6000 ppm terjadi prooksidan yang diakibatkan konsentrasi antioksidan yang ditambahkan terlalu tinggi., Shark liver oil is rich in squalene but low in omega-3. Squalene and omega- 3 are known to each have an immunostimulating effect. Research related to the effect of fish oil containing high squalene and omega components on immunity has never been carried out. This study used shark liver oil added with omega-3 concentrate at a certain concentration. The addition of omega-3 to shark liver oil will increase the content of unsaturated fatty acids in fish oil which can make fish oil more susceptible to oxidation. The addition of antioxidants can extend the shelf life of the product. This study aims to analyze the effect of adding omega-3 concentrate to shark liver oil as an immunostimulant through in vitro tests and to determine the effect of antioxidant concentrations on oxidation of fish oil during storage. The addition of omega-3 concentrate to the shark liver oil showed a higher immunostimulating effect than the control oil based on the values of splenocyte viability and phagocytosis of macrophages. The addition of antioxidants to oil can inhibit oxidation of shark liver oil during storage up to 30 days at room temperature for all samples, but at a concentration of 6000 ppm pro-oxidants occur due to the concentration of antioxidants added being too high.
Keyword: antioxidant, immunostimulant, omega-3 concentrate, shark liver oil, squalene