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: 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: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell