Judul: Analisis Risiko Usaha Diversifikasi Sayuran pada Petani Gapoktan Rukun Tani di Kecamatan Ciawi Kabupaten Bogor Jawa Barat
Abstrak: Vegetables diversification is one of the best form solution to applied by farmer to reduce existing risk. Form of diversification that can applied by vegetable farmer generally consist of combination cultivation among the various of vegetables such as peas, beans, tomatoes, curly chili and mustard. Gapoktan Rukun Tani is one gapoktan that have farmers at most cultivation the vegetables. The purpose of this research are risk identification that faced by farmers, to iii analyze diversification business died by farmer in solution reduce of risk, to know magnitude of the risk decline after to do diversification business, and to analyze alternative strategy that can farmer doing to handle of risk vegetable business. Taking sample from farmer in this research use purpossive method. Furthermore, techniques of data collection include interview with farmer that appropriate with questions in questionnaire, discussions, and observation on farmer’s field. its processing have done by using Microsoft Excel 2007. Whereas, risk measure used consists of opportunities, expected return, variance, standard deviation, and coefficien variation. There are two activities that calculated measure of risk are spesialisation and diversification activities. The result show curly chili the best cultivated spesialisation because the smallest coefficient variation earned by 0.259. However, for commodity beans, chickpeas, tomatoes, and mustard are the best if cultivated with diversification activities. Because result value coefficient variation on the spesialisation activity can be reduced through diversification activities.
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Judul: Analisis Risiko Diversifikasi Sayuran Indigenous (Kasus: Usahatani Anggota Kelompok Tani Mitra Tani Parahyangan, Kabupaten Cianjur)
Abstrak: Indigenous vegetable is a vegetable local which one of Indonesia's biodiversity. Farmer groups in agribusiness, particularly vegetables in Cianjur one of which is the Mitra Tani Parahyangan Farmers Group. Productivity fluctuations indicates a risk in farming. The purpose of this research is to analyze the activity of specialization and diversification undertaken by the farmer members Group Mitra Tani Parahyangan by looking at the extent of the risks faced by and devise an alternative strategy of diversification by providing the right combination of commodities to reduce the risk of farming on the specialization activities carried out by farmers Group members Mitra Tani Tani Parahyangan. A methods of collecting data done by means observation, interviews, discussions and filled out the questionnaire to 25 respondents. Respondents were selected consisting of 10 tomato farmers, 10 cabbage farmers, and 5 leunca farmers. The process of sampling respondents conducted by purposive sampling method . Data processing was performed using Microsoft Excel 2007. While the measure of risk used cover opportunities, expected return, variance, standard deviation, and coefficient of variation. Sources of risk faced by farmers Farmers Group members of Mitra Tani Parahyangan is precipitation, fog, and pests and diseases. Results of the analysis indicate that the specialization of activities leunca is a commodity with the lowest coefficient of variation is equal to 0.27. The combination of these two commodities namely leunca and cabbage is the most diversified activities namely lower risk of 0.29 compared to a combination of two other commodities as well as the tomatoes and tomato and cabbage leunca. Alternative strategies that can be run by farmers group members of Mitra Tani Parahyangan to decrease the risk of production is the timing and the right commodity diversification activities and the control of pests and diseases .
Keyword: diversification, specialization, risk, indigenous vegetables

Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: sifat optik, litium niobat, chemical solution deposition, kecepatan putar