Judul: Analisis Kelayakan Usaha Lada (Piper nigrum L.) di Desa Kundi Kecamatan Simpang Teritip Kabupaten Bangka Barat
Abstrak: Indonesia is one of the countries of white pepper producers in the world. During some periods, the contribution Indonesia in the world markets had tendencies a decrease supplied. Kundi village is one of the areas of white pepper production center in Bangka Barat Regency. Fluctuations in selling prices and a decrease in the number of white pepper production leads to reduced production volumes resulting white pepper. White pepper is a commodity which has a potential to be developed because it is a commodity export and unfullfilling demand. The Bussiness of white pepper is necessary high investments so that it needs a feasibility studi of the white pepper of farmer’s level, Kundi village to determine business feasibility. Methods of analysis data which are used on this research is qualitative analysis method to analyze feasibility based on nonfinancial aspect such as market aspect, technical aspect, management aspect, and also social, economic, and environmental aspect and quantitative which used to analyze the financial based on investment criteria (NPV,IRR,Net B/C,PP) and sensitivity analysis. The research result showed that the white pepper cultivation in Kundi Village, Simpang Teritip District, Bangka Barat Regency is feasible to be done .
Keyword: feasibility, kundi village, white pepper

Judul: The Impact of Government Policies on Profitability and Competitiveness of White Pepper (Muntok White Pepper) in the Province of Bangka Belitung
Abstrak: Indonesia is well known as the world producer and exporter of white pepper. In the year 2000, Indonesia was able to meet 90 percent of the world demand for white pepper. But during the past 10 years, Indonesia’s white pepper exports have declined, even in 2009 and 2010 export of white pepper contributed only as much as 26.8 percent and 28 percent of the world white pepper demand. At present, the problem becomes a serious threat to the sustainability of white pepper exports as there is a decreasing in crop area thus decline the productivity and a stronger competition with other exporter countries such as Vietnam. This study was conducted in the province of Bangka Belitung. Aims of this study were : (1) to analyze the profitability of white pepper commodity financially and economically, (2) to analyze the comparative and competitive advantages of white pepper, and (3) to analyze the impact of government policy on profitability and competitiveness of white pepper. Policy Analysis Matrix (PAM) was used to calculate the private and social profits and to measure the level of comparative advantage and competitive advantage of white pepper. Sensitivity analysis was also conducted in order to analyze the impact of policy change on white pepper commodity. The results showed that : (1) white pepper farm in the province of Bangka Belitung is profitable (both private and social profitable), (2) it had a competitive advantage (PCR<1) and comparative advantages (DRCR<1 ), and (3) government policies do not provide effective protection for farmers to produce white pepper.
Keyword: 

Judul: Solusi Geometri Schwarzschild untuk Dimensi 4+1 dengan Invarian Rotasi Isotropik
Abstrak: Metrik Schwarzschild merupakan solusi eksak pertama dari persamaan medan Einstein dengan mangasumsikan metrik statik dan simetris. Metrik Schwarzschild yang ditemukan oleh Karl Schwarzschild masih dalam dimensi 3+1, namun seiring dengan teori-teori terbaru yang menunjukkan bahwa alam semesta tidak hanya di dimensi 3+1. Maka melalui penambahan dimensi, tujuan penelitian ini memperoleh solusi pada geometri Schwarzschild untuk dimensi 4+1 dengan memodifikasi koordinat bola yang invarian rotasi isotropik dan melalui penurunan rumus seperti koordinat bola, simbol Christoffel, dan tensor Ricci. Selain mendapatkan solusi ini, metrik Schwarzschild dimensi 4+1 dapat digunakan sebagai metrik dasar untuk memperoleh solusi blackhole dan wormhole pada dimensi 4+1. Hasil akhirnya, dengan memanfaatkan modifikasi koordinat bola, metrik Schwarzschild dapat dibentuk sehingga diperoleh solusi geometri Schwarzschild untuk dimensi 4+1.
Keyword: metrik Schwarzschild, persamaan medan Einstein, modifikasi koordinat bola, penambahan dimensi, invarian rotasi isotropik