Judul: Analisis pendapatan usahatani asparagus di Kecamatan Ciwidey, Kabupaten Bandung, Jawa Barat
Abstrak: Asparagus merupakan tanaman yang dipanen setiap dua hari sekali dan dapat mulai dipanen pada saat umur tanaman sudah mencapai 8 bulan. Penelitian ini bertujuan untuk menganalisis keragaan usahatani dan tingkat pendapatan usahatani asparagus di Kecamatan Ciwidey dengan menggunakan analisis struktur biaya, analisis pendapatan dan R/C serta analisis pendapatan yang dihitung dengan menggunakan ukuran penampilan usahatani seperti return to total capital, return to farm equity capital, dan return to family labour. Berdasarkan hasil penelitian menunjukkan bahwa pendapatan asparagus dari R/C maupun berdasarkan ukuran penampilan usahatani pada umur tanaman 1 tahun masih bernilai negatif dan usaha yang dijalankan belum efisien. Berdasarkan hasil penelitian pendapatan asparagus baik dari R/C maupun berdasarkan ukuran penampilan usahatani bernilai positif dan usaha yang dijalankan sudah efisien memasuki umur tanaman 2 tahun.
Keyword: age plant, R /C, return to the total capital.

Judul: Analisis Kelayakan Usaha Asparagus (Asparagus Officionalis) di Kelompok Tani Al'istiqomah Kecamatan Ciwidey Kabupaten Bandung
Abstrak: Asparagus is a subtropical plant that can be cultivated in the highlands of Indonesia, such as Bandung Ciwidey that have the necessary conditions to grow asparagus. The first farmer groups that cultivates asparagus in District Ciwidey is Al’istiqomah Farmer Group. This group is the first farmer group who became a pioneer in commercializing asparagus. Expensive seedling price is one of the obstacle that the farmers group faces in cultivating these plants, that have a technical life of 5 years. The purpose of this study was to analyze the feasibility of Farmers Group Al’istiqomah in the non-financial and financial aspects. In ii addition, this study also analyzes the sensitivity to changes in operating conditions using a switching value. The results of the research will show that not all the criteria on financial and non-financial aspects can be feasible. Analyses were performed with two scenarios, the first scenario is the actual condition of the business and the second scenario is the condition of the development work done by adding greenhouse s in the field. In scenario I, the NPV obtained was 7 182 684.85, the value of the Net B / C is 1.17, the IRR value was 12% to a 7% discount rate and the payback period for scenario I is 4.48 years. In scenario II, the NPV obtained 26 012 781.22, the value of the Net B / C is 1.51, the IRR value was 24% at a discount of 7% and the payback period is 4.0 years. These two scenarios are feasible by the farmer groups. A risk analysis on several inflow and outflow components was conducted in these two scenarios. The components that have a high degree of sensitivity to change is the decline of production in the first scenario with the value of 10.22% and also in the second scenario with the value of 26.41%.
Keyword: Bogor Agricultural University (IPB), nonfinancial aspects., financial aspects, Al’istiqomah farmer groups, Asparagus

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave