Judul: Perhitungan Inflasi Inti (Core Inflation) di Indonesia Melalui Pendekatan Metode VAR serta Pengaruhnya
Abstrak: Masalah inflasi selalu menjadi topik yang menarik untuk dibahas dalam perekonomian, terutama karena masalah inflasi tidak pernah lepas dari negara mana pun di dunia dari waktu ke waktu. Stabilitas harga adalah salah satu dari tujuan lain kebijakan ekonomi makro selain full employment dan pertumbuhan sehingga melihat faktor-faktor penyebab dan yang berkaitan dengan inflasi menjadi sangat penting.
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Judul: Analisis Faktor-faktor yang Memengaruhi Core Inflation di Indonesia
Abstrak: Inflation is one of the important factors in determining the policy direction of the government and the Central Bank in the field of monetary and always be monitored movement. Since 2000, Central Bank of Indonesia has set a target inflation rate to be achieved using the Consumer Price Index (CPI). Inflation can be controlled by monetary policy commonly known as core inflation. The method used is VAR/VECM. The data used are monthly time series data January 2005 until December 2012. Real GDP and imports variables significant negative effect on core inflation, while the price of crude oil and exchange rate have a significant positive effect on core inflation, so that changes in Real GDP, imports, oil and the exchange rate will affect the change in core inflation.
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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