Judul: Pengaruh Keberadaan Central Business District (CBD) Simpang Lima Gumul terhadap Konversi Lahan Pertanian, Kabupaten Kediri
Abstrak: This study aims to examine the pattern and characteristics of agricultural land convertion and its factor and the rate of agricultural land conversion in Kediri Regency. Descriptive analysis method used to analyze the patterns, characteristics and the rate of land conversion. Meanwhile, to analyze the factors used multiple linear regression models. The results showed that the patterns and characteristics of land conversion in Kediri Regency spontaneously still very little compared by the plan. The government managed to overcome the problem of agricultural land deficit through by extensification farmland program. Empirically the factors that influence agricultural land convertion in the real level of the farmer in Ngasem Subdistrict the first is the number of dependents, which is indicating the rapid growth of the region after opening area. The second is the distance of the area from the center of he central business district. Third is the price of agricultural land per/ square meter. The fourth is land held previously. The implication of this is that local government needs to coordinate with the owners of wide land so the conversion can be controlled.
Keyword: Simpang Lima Gumul, land conversion, central business district

Judul: Analisis konversi lahan pertanian di kabupaten Tangerang
Abstrak: Land conversion is a term that describes phenomenon of changing land- use from one to other uses permanently. Factors closely associated with land conversion were population growth, economic, and infrastructure development. This study aims are (1) to determine rate and pattern of farmland conversion in Tangerang District, (2) to know growth rate of population density, economic growth, and development of Tangerang District, and (3) to determine factors affecting conversion of agricultural land in Tangerang District. Land conversion in Tangerang District caused areas of agricultural land decreased 2.4% per year. The agricultural lands were converted into built land. Population density grew unevenly in Tangerang District. The highest population density growth rate occurred ( during 1997-2007 ) in Pasar Kemis (19% ) and Kronjo faced the lowest rate (0.2%). The economic growth rate in the Tangerang District can be seen from the 1997-2007 Gross Regional Domestic Product (GRDP) Tangerang District. In general, service sector has the highest growth rate (3.9%) followed b y industrial sector (0.9%) and agriculture sector (0.6%). Meanwhile, mining sector decreased by 4.1% per year. Level of development in Tangerang District analyzed with skalogram shows that in 2003 most of the villages (60.98%) were on 3rd hierarchy, while the rest on 2nd hierarchy (30.18%) and 1st hierarchy (8.84%). In the year 2006, there were an increase in number of villages on 2nd hierarchy and a decrease in number of villages on 3rd hierarchy, while the number of villages on 1st hierarchy were the same. Factors with high significant (p-level <0.05) influencing agricultural land conversion were GRDP growth of services sector, GRDP of agricultural sector, GRDP of manufacturing industry, educational facilities, economic facilities, accessibility to health facilities, and accessibility to government centre, whereas accessibility to educational facilities was the significant factor (p-level <0.1).
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Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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