Judul: Dampak Investasi Terhadap Kinerja Perekonomian: Studi Komparasi Penanaman Modal Dalam Negeri dan Penanaman Modal Asing di Jawa Timur
Abstrak: Domestic and foreign investment play an important role in the East Java economy. However, within these past five years the growth of both types of investment has been fluctuated and tends to decrease. One of the objectives research is to analyze factors affected economic variables of East Java province: Gross Regional Domestic Product (GRDP), inflation and unemployment. This research is conducted using econometric model that formulated in simultaneously equation with approximated Two Stage Least Squares (2SLS). Results of this study show that GRDP is influenced by real domestic investment, a change in real foreign investment, time trend, dummy of decentralization and the last year GRDP. Inflation is influenced by GRDP, time trend and the last year inflation. Unemployment is affected by real domestic investment, time trend and the last year unemployment. The simulation also shows that an increase in domestic and foreign investment have the same positif impact on GRDP and inflation but negative impact on unemployment. Further, foreign invesment has a greater impact on GRDP and unemployment compared to domestic invesment, conversly.
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Judul: Dampak Tata Kelola Pemerintahan Daerah Terhadap Realisasi Investasi di Provinsi Jawa Timur
Abstrak: Regional governance is one of important supporting factors in stimulating investment realization in every region. The aims of the study are (1) to describe the perceptual difference among businessmakers in East Java based on regional governance survey held by KPPOD (Komite Pemantauan Pelaksanaan Otonomi Daerah) in 2007 and 2010, (2) to analyze the linkages between regional governance and investment realization in East Java, and also (3) to analyze the impact of regional governance to investment realization in East Java. Data used in this research consist of 2 period, 2005-2007 and 2008-2010, and 38 districts and municipals in East Java. Data are taken from Investment Coordinating Board, Central Bureau of Statistics Indonesia and Directorate General of Fiscal Balance (DJPK). Methods used are descriptive statistic ,using Pearson and Spearman correlation, and also static panel data regression. Perceptual difference on the latter survey, as the first result, found to be significantly better and even worse than the previous one for some major variables . Results also showed that there is a strong linkage between foreign direct investment, domestic private investment, public investment and regional governance. The elements of regional governance that affected domestic investment are percentages of businessmaker having business licence (Tanda Daftar Perusahaan) and also dummy of regional government program in promoting local potential product/commodity. The elements of regional governance that affected foreign direct investment are dummy of donation barrier to the regional government, dummy of the regent/municipal’s comprehension to the business matters and dummy of the quality of road infrastructure.
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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