Judul: Analisis Tataniaga Tebu (Studi kasus: Kecamatan Trangkil, Kabupaten Pati, Jawa Tengah)
Abstrak: Sugarcane can be used as raw material for the manufacture sugar. Cane farmers crops can be sold to sugar factories to meet the market demand for sugar. Therefore, research is needed to find out about business administration cane sugar in a comprehensive overview of business administration. The purpose of this study is to identify the channel, function, organization, and structure of the market in sugar cane business administration systems, and analyze operational efficiency with a cane trading system trading system margin approach, the farmer's share, and the ratio of benefits to costs. Observations and interviews were conducted to farmers in Sub Trangkil with purposive sampling method, while the method of follow the flow of commodity is done to institutions trading system. The results showed that there is a 4 channel trading system with institutions, functions, and different market structures on each channel. Under margin trading system, the farmer's share, and the ratio of benefits to costs shows one channel trading system is the most efficient channels.
Keyword: sugarcane marketing, Trangkil district, farmer’s share, efficient, efficiency

Judul: Sistem Pemasaran Gula Tebu (Cane Sugar) dengan Pendekatan Structure, Conduct, Performance (SCP) [Kasus: Perusahaan Perseroan (Persero) PT.Perkebunan Nusantara VII Unit Usaha Bungamayang]
Abstrak: Fluctuations international prices of cane sugar have an impact on the price of cane sugar in the country. One of the areas that became centers of production of cane sugar that sense changes in the international price of cane sugar Provinsi Lampung. The uncertainty of the price risk to the marketing agency involved. The general objective of this research is to analyze the marketing system of cane sugar approach to structure, conduct, performance (SCP) to the case in PTPN VII Unit Usaha Bungamayang. Research results indicate that the market structure facing the market is concentrated with a small level of competition and have barriers to entry for competitors. Market structure in Provinsi Lampung is oligopoly. Analysis of market behavior in the determination and formation of prices is still dominated by one of the marketing agencies. Market behaviour in PTPN VII UU BUMA have a marketing colution when the fixed prices by large salers. Market performance analysis shows that changes in the price of sugar cane at the consumer level is not transmitted to farmers. The results indicate that analysis of cane sugar marketing system in PTPN VII UU BUMA likely more advantages large salers than farmers. The farmers are price taker in the short run and long run.
Keyword: 

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