Judul: Kelayakan Usaha Ternak Domba dengan Introduksi Pakan Silase Daun Singkong di Desa Petir, Kec. Dramaga, Kab. Bogor.
Abstrak: Petir village contributes to the production of sheep in West Java. The majority of sheep farmers in Petir village use grass as the feed which depends on weather condition. Cassava leaves silage can be an alternative feed with good quality. Introduction of cassava leaves silage can affect the feasibility of livestock business. This study aims to analyze the feasibility of sheep farming in terms of financial and nonfinancial aspects with and without introduction of cassava leaves silage. In actual condition the results of market and marketing aspects, technical aspect, social aspect, and environmental aspect showed that the business was feasible. Meanwhile, the technical aspect on the condition with introduction of cassava leaves silage feed was not feasible. Then, the results of financial aspect in actual condition showed that among three business scales (I: up to 5 sheep, II: 6 to 10 sheep, and III: larger than 10 sheep), Type III was the only feasible one. In addition, the result of switching value showed that the business was more responsive to the decrease of selling price than the increase in purchasing price of sheep. The result of financial analysis on the condition with introduction of cassava leaves silage feed was not feasible at every business scale
Keyword: switching value, non financial aspects, financial aspects

Judul: Analisis kelayakan usaha ternak domba rakyat di Desa Cibunian Kecamatan Pamijahan Kabupaten Bogor
Abstrak: The objectives of this research are: (1) to describe the characteristic of farmer and their sheep farm; and (2) to analyze the financial feasibility of sheep farm and it's sensitivity. Cluster random sampling applied to choose 164 sample from 700 sheep farmers household population in Cibunian Village. The sheep farm were clasified into three categories based on ownership of sheep, namely scale I (0,75- 2,50 SDD or Adult Sheep Unit); scale II (2.51-4.75 SDD); and scale III (4,76-8,50 SDD). The result of this research showed chat generall (52,44%) farmer in Cibunian village comitted their sheep farm on scale I. Farmer of each scale in avarage were categorized into productive aged, have lots of experience on shap farm activities, but they have low education. The result of financial feasibility analysis showed that for 10 years at the interest rate of 9,50%, Net Resent Value (NPV)of sheep farm on scales I, II and III respectively is Rp (3.537.029,00); Rp (1.413.826,00); and Rp 1.770.5 19,00, with the values of Benefit Cost Ratio (BCR) are 0.67; 0,89; and 1 ,I 0. Internal Rate of R e m (IRR) on scale I1 and 111 respectively is 057 and 16,56%. Sensitivity analysis was counted on scale Ill. Sheep farm on scale 1II was not feasible if farm costs increased more than 9,97% or farm revenues decreased more than 9.06% ceteris paribus.
Keyword: 

Judul: Orbit elektron dan probabilitas level energi sistem chaotic atom hidrogen
Abstrak: a. Mendapatkan orbit elektron sistem chaotic atom hidrogen (dalam koordinat semiparabolik). b. Mendapatkan probabilitas dua level energi yang berdekatan dari sistem chaotic atom hidrogen.
Keyword: Atom, Orbit Elektron