Judul: Pendapatan usaha Purse Seine di PPI Muara Angke dan faktor-faktor yang mempengaruhinya
Abstrak: Sumber pendapatan utama bagi usaha purse seine berasal dari upaya penangkapan ikan. Pendapatan usaha purse seine ini dapat dipengaruhi oleh beberapa faktor yaitu jumlah hasil tangkapan, lama melaut, jumlah tenaga kerja, frekuensi melaut, harga, ukuran kapal, dan biaya operasional. Tujuan dari penelitian ini adalah menentukan pendapatan usaha purse seine di PPI Muara Angke dan menentukan faktor-faktor yang mempengaruhi pendapatan usaha purse seine. Metode analisis yang digunakan adalah analisis pendapatan dan regresi linier berganda dengan menggunakan software statistik. Hasil dalam penelitian ini yaitu diperoleh pendapatan usaha purse seine kisaran antara Rp105.000.000–Rp323.000.000/trip. Variabel biaya operasional, produksi hasil tangkapan, lama hari melaut, ukuran kapal dan jumlah ABK merupakan faktorfaktor yang secara bersama-sama berpengaruh nyata terhadap pendapatan usaha purse seine.
Keyword: business, income, purse seiner

Judul: Keragaan Perikanan Purse Seine di PPI Muara Angke, Jakarta Utara
Abstrak: PPI Muara Angke is one of the fisheries landing sites which is located in DKI Jakarta. Fishing gear that is often used in PPI Muara Angke is purse seine. The aim of this study was to analyze the technical, biological, social and economic aspects of purse seine fishery in PPI Muara Angke. The method of this research was a survey method by analyze each aspects descriptively. Technically, purse seiner in PPI Muara Angke have size 25-125 GT and operate in the North region of the Java Sea, Bangka Belitung, Karimata Strait, Natuna Sea, South region of the China Sea and the others. The number of fisherman is 30-40 people. Biologically, the fishing gear has high catch species diversity with a low selectivity. Socially, purse seine fisheries in PPI Muara Angke implement sharing system, money deposits and wages catch bait. It is can also be well received by the local community. Economically, purse seine fisheries in PPI Muara Angke gain huge profits and having a good investment prospecting.
Keyword: purse seine, survey method, Muara Angke

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