Judul: Analisis keterkaitan dan dampak investasi sektor jasa terhadap perekonomian DKI Jakarta  (Tabel input output dari sisi permintaan)
Abstrak: Ada beberapa hal yang menjadi tujuan penelitian ini diantaranya: (1) mengetahui keterkaitan sektor jasa dengan sektor-sektor lainnya di DKI Jakarta, (2) mengetahui berapa besar dampak penyebaran sektor jasa di DKI Jakarta, (3) mengetahui berapa besar dampak ekonomi yang ditimbulkan oleh sektor jasa ditinjau berdasarkan multiplier terhadap output, pendapatan dan tenaga kerja dan (4) mengetahui besarnya dampak dana investasi sektor jasa terhadap sektor-sektor lainnya dalam perekonomian DKI Jakarta
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Judul: The Impact of Investment in the Trade Sector in DKI  Jakarta on Regional Economy Growth: Inter Regional Input-Output
Abstrak: Pembangunan ekonomi merupakan hal penting yang perlu dilakukan oleh suatu negara agar dapat meningkatkan kesejahteraan dan taraf hidup masyarakat. Pembangunan dan struktur perekonomian Indonesia secara spasial masih didominasi oleh provinsi yang berada di Pulau Jawa khususnya Provinsi DKI Jakarta sebagai kontributor terbesar terhadap perekonomian Indonesia. Sektor perdagangan merupakan sektor dengan kontribusi terbesar terhadap PDRB DKI Jakarta. Penelitian ini bertujuan untuk menganalisis keterkaitan sektor perdagangan DKI Jakarta dengan sektor dan wilayah lain serta menganalisis dampak investasi sektor perdagangan DKI Jakarta terhadap output, pendapatan, dan tenaga kerja. Metode yang digunakan merupakan analisis keterkaitan dan analisis dampak menggunakan Tabel IRIO tahun 2016 menurut 17 sektor dan 34 provinsi. Hasil penelitian menunjukkan bahwa sektor perdagangan DKI Jakarta memiliki nilai keterkaitan total ke depan yang cukup besar terhadap sektor di Provinsi Nusa Tenggara Barat, Gorontalo, dan Maluku Utara. Namun, sektor perdagangan masih memiliki nilai keterkaitan total ke belakang yang rendah terhadap sektor di Provinsi Riau, Sumatera Selatan, dan Jawa Barat. Adanya investasi pada sektor perdagangan DKI Jakarta memiliki dampak yang besar terhadap total output, pendapatan, dan tenaga kerja di Provinsi DKI Jakarta itu sendiri, sednagkan dampak yang diberikan pada provinsi lain paling besar dirasakan oleh Provinsi Jawa Timur., Economic development is an important thing that needs to be done by a country to improve the welfare and standard of living of the people. Spatially, the development and structure of the Indonesian economy are still dominated by provinces in Java Island, especially DKI Jakarta Province, which is the largest contributor to the Indonesian economy. The trade sector is the sector with the largest contribution to DKI Jakarta's GRDP. This study aims to analyze the linkages of the trade sector in DKI Jakarta with other sectors and regions and to analyze the impact of investment in the trade sector in DKI Jakarta on output, income and, workforce. The method used is a linkage analysis and impact analysis using the 2016 IRIO Table according to 17 sectors and 34 provinces. The results of the study show that the trade sector in DKI Jakarta has a relatively large total forward linkage value to sectors in the Provinces of West Nusa Tenggara, Gorontalo, and North Maluku. However, the trade sector still has a low total backward linkage value to sectors in the Provinces of Riau, South Sumatra, and West Java. The existence of investment in the trade sector of DKI Jakarta has a large impact on total output, income, and workforce in DKI Jakarta Province itself, while the impact given to other provinces is greatest in East Java Province.
Keyword: economic development, investment, IRIO, trade sector

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