Judul: Study About Factors Influencing Transition of Green Open Spaces Based on Analysis of Land Use in Depok City, West Java, Indonesia
Abstrak: This study focused on land development in Depok City located south of Jakarta. Although Depok enjoys a tropical climate, it is necessary to consider the distribution of land use within the city, especially green open spaces. Depok is a commercial center and a public utilities center, where water is stored to supply ground water as buffer city of Jakarta. Moreover, it is a hotspot of education and residential area development. Depok is influenced strongly by land development in Jakarta, and further economic growth is expected. The purpose of this study is to understand the transition of green open spaces and land use types in Depok to reveal the changes in the of area of green open spaces in Depok and to identify the factors influencing the transition of green open spaces in Depok. To identify the factors influencing the transition of green open spaces, binomial logistic regression analysis was used. The dependent variable was the area of green open space converted into non-green open space, and the independent variables included distance from commercial facilities, distance from industrial areas, distance from educational areas, distance from hospitals, distance from rivers, distance from lakes, distance from main roads, distance from a highway, distance from a highway entrance, distance from a railroad station, and distance from inundation-prone areas. It was revealed that the area of green open space has rapidly decreased in Depok, especially from 2005 to 2015. Two factors particularly influenced the transition of green open spaces, where a greater proximity to educational areas or main roads was associated with a greater reduction in green open space. Also, the distance from hospitals and lakes were associated with the maintenance of green open spaces in Depok. For residents, convenience is improved in areas close to educational areas or main roads; therefore, it is conceivable that buildings such as housings are increasing accordingly in such areas. Keywords:binomial logistic regression analysis, green open space, land use
Keyword: Binomial logistic regression analysis, Green open space, Land use

Judul: An Analysis of Changing on Greenery Open Space Area and Factors Influence It In South Jakarta
Abstrak: South Jakarta is one of region in DKI Jakarta facing an enormous growth in all aspects of development. The increasing of development activities and regional cause increase land uses dynamic. Fixed land supply compare with the increasing demand causing land use change particularly greenery open space in South Jakarta. This research aims are: (1) to identify changing of greenery open space of South Jakarta, and (2) to find out population, infrastructure, and development growth rate of South Jakarta; and (3) to identify factors influencing change of greenery open space and relationship among the factors. The result shows that greenery open space in the period of 2002-2007 decreased about 362,21 hectare from 1299,22 hectares in 2002 to 937,01 hectares in 2007. In the same period population and population density increased 0,7% per year while immigrants declined -23% per year. The region of South Jakarta in 2003 showed hierarchy III village was dominant (43 villages), while number of hierarchy II and I village was 17 villages and 5 villages. In 2006 number of village categorized on hierarchy II showed increasing to be 19 villages while hierarchy III decreasing to be 41 villages and hierarchy I was constant in number. Regional development could be due to growth on infrastructure development such as educational facility, health facility, and commercial area. The number of educational, health, and commercial facilities grew during the period of 2003- 2006 with rate 4,8%, 7,1%, and 20% per year, respectively. Regression analysis was utilized to identify factors influencing greenery open space area change. According to the result, land allocated for greenery open space in Jakarta’s spatial plan (RTRW) being the major factor affecting the change. The other factors were growth of health facilities, immigrants, population density, and educational facilities.
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Judul: Isolasi dan purifikasi inhibitor RNA helikase virus hepatitis C dari bakteriosin bakteri asam laktat S34
Abstrak: Target molecular therapy is one of method to prevent hepatitis C virus which was developed recently. NS3 Helicase/RNA helicase hepatitis C virus inhibition using inhibitory peptide are target in molecular therapy. Bacteriocin are inhibitory peptides which can inhibit hepatitis C virus through inhibition of NS3 helicase. Bacteriocin is a peptide which is produced by lactic acid bacteria. The aim of this research were to isolate and to purify bacteriocin from S34 lactic acid bacteria which has high activity to inhibit RNA helicase of hepatitis C virus. S34 lactic acid bacteria were identified using 16S RNA amplification and DNA sequencing identification of S34 lactic acid bacteria was Lactobacillus plantarum WCFS1. The bacterial growth reached logaritmic phase at 7 hours and stationary phase at 10 hours. Bacteriocin were isolated and purified by ammonium sulphate precipitation with 80% saturation, gel filtration chromatography, and characterization of bacteriocin through molecular weight analysis and measured protein concentration. Bacteriocin from S34 lactic acid bacteria were included in 2nd class bacteriocin, had 64.20 % of inhibition against RNA helicase hepatitis C virus, had molecular weight about 1.7-4.2 kDa, and specific activity in the amount of 2.84 x 106 U/mg.
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