Judul: Analysis of the impact of local tax revenue forward road infrastructure development in west java province
Abstrak: Jawa Barat merupakan salah satu provinsi yang memiliki peran penting dalam pertumbuhan ekonomi Pulau Jawa dan Indonesia dan sebagai daerah pusat perindustrian keberadaan infrastruktur di Jawa Barat sangat penting dalam menentukan pembangunan ekonomi baik di Jawa Barat maupun Jawa dan Indonesia. Namun demikian, kondisi jalan di sebagian besar wilayah kabupaten/kota di Jawa Barat dalam kondisi tidak baik atau rusak dan rusak berat, sementara di pihak lain pajak daerah di setiap kabupaten/kota mengalami pertumbuhan yang positif. Dengan demikian, tujuan utama dari penelitian ini adalah menganalisis hubungan antara penerimaan pajak daerah dengan pembangunan infrastruktur jalan di Provinsi Jawa Barat. Dalam penelitian ini analisis data menggunakan metode ekonometrik data panel dengan 26 kabupaten/kota periode 2008 sampai dengan 2011. Hasil penelitian menunjukkan bahwa pertumbuhan pajak daerah berpengaruh signifikan dan positif terhadap pembangunan infrastruktur jalan. Variabel lain yang berpengaruh signifikan adalah pertumbuhan sektor industri dan pertumbuhan penduduk yang keduanya berpengaruh positif., West Java is one of the provinces in Indonesia that has an important role in the economic growth of Java Island and Indonesia and as a regional industrial center, the availability of infrastructure in West Java is very important to determine the economic development both in West Java and Java Island or Indonesia. However, most of regency/municipality in West Java has a damaged condition while the local tax revenue in every regency/municipality has a positive growth. Thus, the main purpose of this study is to analyze the relation between local tax revenue and road infrastructure development in West Java Province. This study used panel data using 26 regency/municipality in West Java Province in the period of 2008-2011. The result show that the local tax significantly positive impact on the road infrastructure development. The other variables that significantly positive impact on the road infrastructure development are the industrial and popolation growth.
Keyword: Data Panel, Infrastruktur Jalan, Pajak Daerah, Provinsi Jawa Barat

Judul: Analisis Pengaruh Investasi, Tenaga Kerja, dan Infrastruktur Terhadap Pertumbuhan Ekonomi Provinsi Jawa Barat
Abstrak: Economic growth is one indicator of development success in an area. This study is to analyze the effect of investment, work labour, and infrastructure to economic growth in West Java during the period 1990-2011. This study using time series data of 1990-2011 and it’s utilizes regression analysis of Ordinary Least Square (OLS) and supporting software from Eviews 6 and Minitab. The results of this study indicate that the independent variables FDI, domestic investment, and work labour has a positive and significant relationship to economic growth. It is also found that road length has a negative and significant relationship to economic growth, while government expenditure has not significant effect. Increased of local revenues by goverment should be done with create a conducive invesment climate so that the realization of infrastructure improvements can be accomplished, expanding employment opportunities, and boost government spending to improve the economy of West Java Province
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Judul: Optimization of Alginate-Chitosan Microcapsules Formation for Leydig Cells Encapsulation
Abstrak: Hypogonadism is a clinical condition characterized by low concentrations of testosterone. It is caused by malfunction of Leydig cells in producing testosterone. Encapsulation method will protect the transplanted cells from the immune system rejection. The aims of this study was to optimize the formation of microcapsules for Leydig cells encapsulation. The microcapsules were made of alginate and chitosan as the first and the second coating agents, respectively. The result showed that the minimum concentration of alginate was 1.5% (w/v) with a viscosity of 33.8 cPs, resulted spherical microcapsules with diameters of 230-270 µm. The optimum concentration of chitosan as the second coating agent was 0.5% (w/v), resulted spherical microcapsule with mechanical stability in 4 hours. Leydig cells can be trapped inside the capsule with a density that proportional with concentration of cells used in the encapsulation.
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