Judul: Analisis Kelayakan Usaha Pengolahan Sirup Sawo pada Kelompok Wanita Tani Teratai Indah di Kabupaten Kuantan Singingi, Provinsi Riau
Abstrak: Sapodilla is tropical fruit that has been long known and widely grown in almost all areas of Indonesia. Kuantan Hilir Seberang Sub-district, Kuantan Singingi District, Riau Province is one of the producing regions of sapodilla and becomes a pioneer in sapodilla syrup processing enterprises. The purpose of this research is to analyze business feasibility in Women Farmers Group (KWT) Teratai Indah based on financial and non financial aspects. Moreover, this research also analyzes sensitiveness on business changes using switching value analysis. The result showed that all the criteria on the non financial aspects was feasible except the scale of production. Financial aspects of the actual condition was not feasible, while the development plan was feasible. The sensitivity analysis showed that the reduction in the number of production condition was more sensitive than the price increase of sapodilla and sugar
Keyword: Bogor Agricultural University (IPB), switching value, sapodilla syrup, non financial aspects, financial aspect

Judul: Analisis Kelayakan Usaha Perkebunan Kelapa Sawit PT. Terang Inti Seraya di Provinsi Riau
Abstrak: Palm Oil is one of agriculture comodity that has a high demand. Palm oil factories in Riau still have a defisit on its raw material to be processed. The deficit of raw materials could be a business opportunity for oil palm plantations. That opportunity to fulfill the raw material needs was taken by PT. Terang Inti Seraya, Riau. The purpose of this research is to analyze the feasibility of oil palm plantation business in PT. Terang Inti Seraya. The research was conducted at the office of PT Terang Inti Seraya at Pekanbaru and Palm Oil Plantation at Tenayan, Buluh Nipis, and Ujung Batu Rokan. Data analysis method which is used on this research is qualitative and quantitative method. Qualitative analysis is used to analyze feasibility based on non-financial aspect such as market aspect, technical aspect, management and law aspect, and also social and environmental aspect. Quantitative analysis is used to analyze feasibility of financial aspect based on investment criteria and switching value analysis. The result of this feasibility analysis shows that palm oil plantation business in PT. Terang Inti Seraya is feasible to run.
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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