Judul: Pengaruh Kemitraan Dalam Upaya Mengelola Risiko Produksi Usaha Ternak Domba. (Studi Kasus: Peternak Domba Mitra MT Farm (Mitra Tani Farm) Desa Bojong Jengkol, Kecamatan Ciampea, Kabupaten Bogor,Jawa Barat)
Abstrak: Sheep farming is one of the agribusinesses that is done by many farmers. Sheep farms are often found in society that is still traditional and it is not managed well. Some constraints that are faced by farmers is production risk. One of many alternatives to manage risk is partnership. This study aimed to determine the influences of partnership in managing the risk of sheep production. Analysis was performed by comparing the level of risk of sheep farming between farmers that are partnered and farmers that are not. Based on observations, the influence of partnership in managing risk is more visible on the assessment of the level of risk of pests and diseases faced by the farmers. The partnered farmers faced lesser risk compared to non-partner farmers. The coefficient of variation results obtained by the partnered farmers were smaller by 0.20 compared to non-partnered farmers by 0.26. value of R/C ratio of cash cost partnered farmers by 1.85 and 1.72 for non-partners. While the value of R/C ratio on total cost of 0.94 was the partnered farmers and non-partners of 0.59. Result of this study indicated that the partnership could reduce the risk level of production and increased of farmers income.
Keyword: R/Cratio, the coefficientof variation, productionrisk, partnership

Judul: Pendapatan Usaha Penggemukan Domba Jantan (Kasus: Kemitraan Mitra Tani Farm dengan Peternak di Desa Bojong Jengkol, Ciampea, Bogor)
Abstrak: Desa Bojong Jengkol merupakan salah satu wilayah di Kecamatan Ciampea, Kabupaten Bogor dimana penduduknya banyak mengusahakan penggemukan domba jantan. Namun untuk mengembangkan usahanya, para peternak memiliki permasalahan seperti permodalan, manajemen, dan pemasaran. Salah satu solusi untuk mengatasi permasalahan tersebut yaitu melalui kemitraan dengan Mitra Tani Farm. Namun tidak semua peternak domba melakukan kemitraan dengan Mitra Tani Farm. Tujuan dari penelitian ini yaitu untuk mengkaji pelaksanaan kemitraan dan mengidentifikasi keragaan usaha ternak menggunakan analisis deskriptif. Selain itu untuk menganalisis pendapatan dan nilai R/C rasio usaha penggemukan domba jantan antara peternak mitra dengan peternak nonmitra. Hasil perhitungan pendapatan atas biaya tunai per SDD per periode dan nilai R/C rasio yang paling besar diperoleh peternak nonmitra Skala III. Sementara itu perhitungan pendapatan atas biaya total per SDD per periode menghasilkan nilai negatif dan nilai R/C rasio kurang dari satu untuk semua skala sehingga usaha ternak domba merugikan. Namun jika dibandingkan maka usaha pada peternak mitra Skala I yang lebih baik dibandingkan skala lainnya karena kerugian yang diperoleh paling kecil dan nilai R/C rasio nya yang paling besar.
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Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition