Judul: Spatial pattern analysis of public tin mining as a suggestion in determination of spatial arrangement policy in bangka district
Abstrak: Recently small scale tin mining (Inconventional Mining) is an alternative activity for some communities in Bangka District. The activity may create positive impact through providing high income, but incontrast, it may create negative impacts such as environmental degradation, social change, and spatial inapropriate utilization regarding its spatial planning and carrying capacity. The objectives of this research were : 1) To describe inconventional tin mining location in Bangka District, 2) To inform socio-economic community due to inconventional tin mining, 3) To know possibility of area utilization discrepancy due to inconventional tin mining, and 4) to provide suggestions to Bangka District Government in spatial arrangement policy in relation to inconventional tin mining activity. Generally, the research methods used GIS and description analysis. The spatial data base was derived from GIS analysis such as digitations, correction, and integration of spatial data and attribute. Analysis for inconventional mining location was conducted through overlay process, legal location mining status identification, total amount and SD value of quarry mining, mining distance category to subdistrict, and scoring. GIS analyses were implemented to identify the discrepancy of area utilization, inconventional mining distribution regarding with land use, and spatial utilization, and description analysis to community socio-economic condition.
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Judul: Perubahan penggunaan lahan dalam hubungannya dengan aktivitas pertambangan di Kabupaten Bangka Tengah
Abstrak: This research has been performed in order to evaluate the landuse change in Bangka Tengah Regency and it association with tin mining activities and to access the pattern and driving forces of the landuse change. Multitemporal remote sensing data were used to analyze the dynamics of land use changes. Landsat satellite images of 2000, 2004 and 2010 were used to interprete ten classes of land use using the Geographical Information System (GIS) and Multiple Regression Analysis were used to access the driving force of the landuse change. The results show many changes among the land use in the year between 2000 and 2010. The highest rate of changes is observed in estate area which increased by 6 612.50 ha per year. The lowest rate of changes is observed in shrub area which decreased by 7 062.50 ha per year. Tin mining area increased by 8.1% per year (1 315 ha per year) and on the other hand forest decreased by 4.9% per year (601 ha per year) in the year between 2000 and 2010. In this case, index of regional growth and tin reserves is the significant factor that caused changes in land uses.
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Judul: Karakteristik Emulsifier dari otak sapi yang diekstrak dengan menggunakan pelarut yangberbeda
Abstrak: Brain is an animal by-product which has the highest phospholipids a ~cdho lesterol content. Phospholipids in brain consist of a polar head (phosphate acid) and nonpolar tail (lipid). Therefore, phospholipids can be used as an emulsifier in emulsion products such as cosmetics and pharmaceutical.
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