Judul: Kajian Pelelangan Ikan dan Pendapatan Nelayan Jaring Cumi-cumi di PPI Muara Angke Jakarta
Abstrak: Pelelangan ikan merupakan salah satu aktivitas ekonomi di pelabuhan perikanan yang memberikan keuntungan bagi penjual dan pembeli. Pelelangan ikan berhubungan dengan pendapatan nelayan karena proses pelelangan akan menghasilkan harga jual/beli yang layak di TPI. Tujuan penelitian ini adalah mengetahui bentuk hubungan kuantitatif antara pelelangan ikan dan pendapatan nelayan jaring cumi-cumi dan mengetahui persepsi nelayan terhadap pelelangan ikan dan di PPI Muara Angke.. Dengan menggunakan analisis regresi dan korelasi linear sederhana didapatkan bentuk hubungan antara pendapatan bersih nakhoda per trip dan nilai penjualan per trip adalah Y=0,0833X-3.830.119 dengan nilai r=0,83, pendapatan bersih nakhoda per hari dan nilai penjualan per hari Y=0,1227X-245.858 dengan nilai r=0,91, dan pendapatan bersih nakhoda per trip dan rata-rata harga untuk satu trip penangkapan dengan nilai r=0,31. Hasil penelitian menunjukkan bahwa persepsi sebagian besar nelayan menjual hasil tangkapan melalui pelelangan ikan adalah karena nelayan tidak perlu lagi mencari-cari pembeli (34,4%) dan nelayan mendapatkan kepastian akan adanya transaksi (28,1%).
Keyword: Fish auction, Fishermen revenue, PPI Muara Angke, Squid nets, Fishing ports, Squid fishing, Regression analysis, Linear correlation, Net income

Judul: Peran Pelabuhan Perikanan terhadap Efisiensi Usaha Penangkapan Jaring Cumi di PPI Muara Angke Jakarta
Abstrak: PPI Muara Angke is a fishing port which can optimalize its role for squid net fisheries efficiency. Squid net is a leading fishing gear in PPI Muara Angke. The purpose of this research were to determine squid fishermen's income, to identify the factors that influence it, and to determine the role of fishing port in a efficiency of squid net fisheries. The analysis methods that used in this research were calculation of income, multiple linear regression analysis, and likert scale. The result of this research showed that in east monsoon the squid net fishermen's income was Rp. 135.220.966/trip and in west monsoon the fishermen's income was Rp. 11.105.431/trip, the factors that influenced income were operational cost, production, squid price, and fishing vessel size, but the fishing experience was not influence the fishermen's income. The facilities that had role were jetty, fish auction area, fuel station, repair and maintenance facility, and equipment supply stalls. The facilities that lack of role were port basin, the fishing ground information center, and clean water tank.
Keyword: squid net, PPI Muara Angke, income, fishing port

Judul: Uji sifat listrik dan struktur kristal fotodioda ba0,5sr0,5tio3 dengan variasi pendadahan fe2O3
Abstrak: Ba0,5Sr0,5TiO3 (BST) thin film was doped by Ferium (Fe2O3) has been done with doping variation 2.5%, 5%, 7.5% and 10% above the substrate Si (100) p-type using chemical solution deposition (CSD) methods by spin coating technique at 3000 rpm for ± 30 seconds. Ba0,5Sr0,5TiO3 thin film made with 1 M concentration and the annealing temperature by 850oC. The results of current-voltage (I-V curves) characterization shows that the BST thin film and BFST are photodiodes. Electrical conductivity values BST and BFST thin films are in the range of semiconductor materials and obtain the electrical conductivity increased when the higher intensity light is used. The result of the dielectric constant increases with the addition of Fe2O3 doping. SEM results showed that the BST and BFST material is a thin film with thickness of the order 10-6 m. Result of XRD showed that BST and BFST is cubic.
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