Judul: Penyusunan metode kuantifikasi pengaruh luas dan jarak RTH terhadap kondisi suhu udara dengan menggunakan data satelit (Studi kasus di Bogor, Jawa Barat)
Abstrak: Karakterisasi spasial sangat penting dilakukan untuk menganalisis perubahan lahan yang telah terjadi. Tiap-tiap penggunaan lahan memiliki interaksi spasial dan pusat energi masingmasing. lnteraksi tersebut terus melebar dari pusat energi hingga perbatasan lahan tesebut dan bertemu dengan jenis lahan yang lainnya. Pada perbatasan tersebut, interaksi terjadi antara dua jenis penggunaan lahan yang berbeda dimana dna interaksi yang berbeda bestemu dan menghasilkan suatu interaksi yang berbeda lagi. Sebagai contoh, misalnya suatu daerah perkotaan berbatasan dengan hutan, unsur-unsur fisis yang terdapat pada kota tersebut akan berinteraksi dengan unsur fisis hutan, demikian juga sebaliknya sehingga diantara kota dan hutan terjadi suatu hubungan fisis. Untuk mengetahui dan mengkarakterisasi interaksi spasial pada berbagai penntupan lahan tersebut, dapat dilakukan dengan teknik penginderaan jauh.
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Judul: Pemodelan pengaruh jarak jangkau ruang terbuka hijau terhadap suhu permukaan di perkotaan (  studi kasus : kota Bogor )
Abstrak: This research was conducted in Bogor, located at 106o48'40'' E-106o46'22'' E and 6o30'53''S -6o40'08'' S. The research aimed at determining the influence of greenspace distance on micro climate especially on surface temperature, and therefore the effective distance of greenspace can be determined for urban spatial planning consideration. Urban surface temperature is the function of energy balance components and greenspace distance. Information of greenspace was derived from satellite image of Landsat 5 TM +.The image wa classified into seven land cover types i.e water bodies, constructed land, bush, paddy field (sawah), high vegetation, field (ladang), and oil palm. Distance to each greenspace type (bush, paddy field, high vegetation, field, and palm), were calculated using Euclidean distance principle. Energy balance components of each land cover class that include net radiation (Rn), soil heat flux (G), sensible heat flux (H), and latent heat flux (LE) were extracted from band 1,2,3 and 6 of Landsat 5 TM image data.
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Judul: Peptides Hydrolysate Derived from Collagen of Snakehead Murrel (Channa striata) Skin Demonstrate Anti-oxidant and Anti-cholesterol Activities.
Abstrak: Anti-cholesterol and anti-oxidant play crucial role to combat cardiovascular disease (CVD) related to formation of arterial plagues from oxidation of cholesterol. In the past decades, research on bioactive peptides demonstrating anti-cholesterol and anti-oxidant activities have been reported as the alternative drugs. In this study, acid soluble collagen was extracted from the skin of snakehead murrel and employed to induce production of collagenase by Bacillus licheniformis F11.4. The collagenases secreted were in turn purified through AKTA Purifier (ion exchange, DEAE column) and used to produce peptides hydrolysate. The purified enzymes were grouped in two distinct collagenase fractions, designated as fraction D and F. Peptides hydrolysate produced by the fraction D was found to demonstrate HMG-CoA inhibitor activity comparable to pravastatin and limited anti-oxidant activity. Meanwhile, peptides hydrolysate generated using the fraction F demonstrated anti-oxidant activity comparable to BHT (2mM), vitamin C (2mM) and vitamin E (2mM), but limited HMG-CoA activity. Combination of the fraction D and F resulted in substantial HMG-CoA inhibition and anti-oxidant activities.
Keyword: Anti-cholesterol, anti-oxidant, bioactive peptide, collagen, collagenase, snakehead murrel