Judul: Dampak Kebijakan Pemerintah terhadap Keragaan Pasar Kerja dan Migrasi pada Periode Krisis dan Sebelum Krisis Ekonomi di Indonesia
Abstrak: Terpeliharanya stabilitas nasional telah mernbawa Indonesia pada kebebilan mengatasi berbagai masalah mendasar pembangman ekonomi. Namun pada tahun 1997 telah terjadi krisis ekonomi, dimana secara makro mempengamhi permintam dan penawaran agregat.
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Judul: Analisis aliran perdagangan teh Indonesia sebelum dan setelah krisis moneter
Abstrak: Akhir tahun 1997 Indonesia mengalami berbagai perubahan yang mendasar baik di bidang politik, maupun perekonomian. Hampir seluruh sektor perekonomian mengalami masalah dalam kondisi sulit ini. Saat terjadi krisis ekonomi, sektor pertanian merupakan sektor yang cukup kuat menghadapi goncangan ekonomi dan dapat diandalkan dalam pemulihan perekonomian nasional. Sektor pertanian mempunyai peranan yang penting dalam kegiatan perekonomian di Indonesia. Salah satu subsektor pertanian yang cukup besar potensinya adalah hasil perkebunan di antaranya adalah teh. Komoditas teh bagi Indonesia hampir 100 tahun merupakan salah satu andalan penghasil devisa dari subsektor perkebunan. Komoditas teh, pada waktu itu menjadi salah satu usaha andalan pemerintah sebagai penompang penghasil devisa setelah karet, kelapa, kelapa sawit, kakao dan kopi. Teh mampu menjadi andalan utama alternatif ekspor ketika sektor industri lain terpuruk.
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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