Judul: Estimasi Nilai Kerugian Ekonomi Masyarakat Akibat Kerusakan Situ (Kasus Pemukiman Sekitar Situ Pladen, Kelurahan Beji, Kota Depok)
Abstrak: Pladen Lake which is located in Beji Village, Beji Subdistrict, Depok City is one of lakes that has damage. This damage not only causes decline of use and non-use value of the lake, but also affects the prosperity of society around the lake. Those people suffered economic losses due to pladen lake flood. The main purpose of this study was to estimate the economic losses due to Pladen Lake damage. In line with this purpose, it was necessary to know the socio-economic characteristics of the community, the public perceptions about the lake damage, and programs that have been implemented by Government of Depok City to control Pladen Lake damage. This study used descriptive analysis, friedman test, and economic valuation methods. The total economic losses caused by flood in 2013 was Rp 92 956 229.23. Total prevention costs of society in the past 10 years was Rp 1 640 325 566.81. These economic losses of society indicated the damage impact values of Pladen Lake ecosystem. Therefore, it is important to manage pladen lake sustainable to reduce the impacts of such damage
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Judul: Estimasi Nilai Kerugian Ekonomi Masyarakat Pasca Banjir di Perumahan Pondok Gede Permai, Kelurahan Jatirasa, Kota Bekasi
Abstrak: Bekasi merupakan salah satu kota yang terkena dampak banjir luapan sungai. Pada tahun 2013, ada 28 titik genangan yang tersebar di delapan kecamatan salah satunya Kecamatan Jatirasa, tepatnya di Perumahan Pondok Gede Permai yang dikenal sebagai daerah rawan banjir karena terletak di dekat Kali Bekasi dan tempat bertemunya dua aliran sungai di Bekasi. Tujuan utama dari penelitian ini adalah untuk mengestimasi kerugian ekonomi masyarakat pasca banjir luapan sungai. Sesuai dengan tujuan tersebut, maka diperlukan untuk mengetahui karakteristik sosial ekonomi masyarakat, kerugian ekonomi masyarakat, dan upaya pemerintah untuk meminimalisir dampak banjir luapan sungai. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dan metode valuasi ekonomi. Berdasarkan perhitungan, total kerugian ekonomi yang dialami masyarakat akibat banjir sungai sebesar Rp 2 735 879 506. Oleh karena itu, total kerugian ekonomi yang dialami masyarakat menjadi dasar pertimbangan pemerintah dalam mengambil kebijakan untuk meminimalisir dampak banjir.
Keyword: banjir luapan sungai, kerugian ekonomi, Perumahan Pondok Gede Permai

Judul: Photosensor producing based on ferroelectric material of Ba0,5Sr0,5TiO3 doped by Ferrium Oxide (Fe2O3) on a P-Type Silicon Substate Si (100) applied as a digital camera with a single pixel image sensor
Abstrak: Thin film Ba0,5Sr0,5TiO3 (BST) doped with Fe2O3 was grown on p-type silicon substrate (100) using chemical solution deposition (CSD). It used the solvent 2-methoxyethanol with annealing temperature of 850°C and the doping treatment Fe2O3 of 2.5, 5, 7.5, 10 % of the mass formed BST. Pure BST had the highest absorption of 600 nm of light wavelength. Additions Fe2O3 moves highest absorption in the range of 560 nm. Fe2O3 addition was strengthening thin film sensitivity to the effects of light. In general, doping Fe2O3 10% was result the best absorbance and current-voltage of BST thin film. Electrical properties of thin films BST include dielectric, photoconductivity, and dissipation energy. Based on the current-voltage (I-V) analysis, pure BST and doped BST showed photodiode properties. Dielectric values obtained in the range from 23.32 to 243. Based on electrical conductivity data and energy dissipation, BST thin films have shown photodiode characteristics and are therefore suitable as light sensors. The image sensor in a digital camera is also a light sensor. This BST thin film has been scientifically proven to be a light sensor and also it can be applied as an image sensor. This is a novelty image sensor based on thin film Ba0.5Sr0.5TiO3.
Keyword: barium strontium titanate, thin film, photodiode, image sensor, digital camera