Judul: Faktor-faktor yang mempengaruhi produksi produk turunan minyak sawit di Indonesia
Abstrak: Production of palm oil downstream products in Indonesia is still low compared to primary products, namely palm oil. demand for palm oil, margarine and soap increased every year. therefore, Indonesia needs to increase the production of palm oil derivative products, not only to meet consumer demand but also related to value-added. Relevant government policies in order to encourage the development of downstream palm oil industry, through the instrument of monetary policy interest rates can affect the production of palm oil derivative products are cooking oil, margarine and soap. The research objectives are (1) Analyzing the factors that influence the production of palm oil derivative products in Indonesia, cooking oil, margarine and soap. (2) Analyzing the impact of policy rate cuts on the production of cooking oil, margarine and soap in Indonesia. In order to address these objectives, a simultaneous equations model of derived from the production of palm oil in Indonesia is estimated by Two Stage Least Squares (2SLS) method. Domestic palm oil production is influenced significantly by the domestic price of cooking oil palm, palm oil price growth rate domestk, interest rate, and cooking oil production t-1. Domestic production of margarine significantly influenced by the production of margarine t-1. Production of domestic soap significantly influenced by the level of interest rates, the growth rate of industrial labor, and the production of soap domestuk t-1. in order to develop the production of palm oil derivatives suggested that the government should export oriented derivative products (cooking oil, margarine and soap) to increase foreign exchange and provision of low interest rates in order to increase investment in downstream industries.
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Judul: Analisis faktor-faktor yang mempengaruhi ekspor minyak sawit dan minyak inti sawit Indonesia
Abstrak: Indonesia as the biggest crude palm oil and palm kernel oil exporter in the world, can not continuosly keep on exporting the crude palm oil and palm kernel oil. Indonesia needs to develop the downstream production of crude palm oil and palm kernel oil industry to give the added value, to employ many labors and also as the environmental recovery function. Therefore, it’s needed a right policy from the government to support the downstream production of crude palm oil and palm kernel oil industry. The purposes of this research are: (1) to analyze the development of Indonesia’s palm oil export; (2) to analyze the development of Indonesia’s palm kernel oil export; (3) to analyze the affecting factors of Indonesia’s palm oil export; (4) to analyze the affecting factors of Indonesia’s palm kernel oil export. This research is using time series data from 1990-2011. The Indonesia’s crude palm oil and palm kernel oil export model was estimated by the doubled linear regresion with Ordinary Least Square (OLS) estimation method. Export models were divided into 6 single formulations, which are Indonesia’s palm oil export with destination country to India, Netherlands, and Singapore, also another single formulations of Indonesia’s palm kernel oil export with destination country to Malaysia, Netherlands and China. The result of this research indicates in a short period the tax rate would be an important instrument in order to limit the Indonesia’s palm and palm kernel oil export on the Indonesia’s downstream production of palm and palm kernel industry development. The facilities which must be built by the government in order to support the development of the downstream industry of crude palm oil and palm kernel oil are infrastructure development, application of tax holiday, and also by deleting the local regulation which blocks the development of the downstream industry of crude palm oil and palm kernel oil.
Keyword: Ordinary Least Square (OLS) Method, Bogor Agricultural University (IPB), palm kernel oil, export tariff, export, crude palm oil

Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf