Judul: Analisis Tataniaga Cengkeh di Kecamatan Amahai, Kabupaten Maluku Tengah, Provinsi Maluku
Abstrak: Syzygium aromaticum or better known as clove is a medicinal plant that is also widely used in the national cigarette industry. The purpose of this study was to analyze the pattern of clove marketing channels in the District Amahai, to analyze the magnitude of marketing margins and marketing efficiency levels in the District Amahai and to analyze the costs and benefits of marketing on the level of the marketing channel marketing agency cloves in the District Amahai. Data were analyzed using a pattern of marketing channels, the magnitude of the marketing margin, the ratio of costs and benefits of marketing on the level of marketing agencies in the District Amahai how efficient trading system to get the cloves in District Amahai. Analyze margin trading system and farmer’s share trading system shows that the channel one is more efficient because although do not have smallest margin trading system and biggest farmer’s share but has the trading volume is higher than the second channel. While based on the ratio of benefit and cost analyze, marketing channels one are relatively more efficient because have the greatest cost benefit ratio and the 19.37.
Keyword: efficiency., trading system, cloves, Bogor Agricultural University (IPB)

Judul: An economic study of the linkages between the development of national cloves and kretek cigarettes industries
Abstrak: love is a unique and strategic commodity for Indonesian economy. It is unique because Indonesia is both the largest producing and consuming as well as importing country of cloves in the worl d. Cloves farming and kretek cigarettes industry play a very important role in the Indonesian economy due their capability of absorbing a lot of labor works. In general, the problem of Indonesian cloves industry is due to a re latively low price of cloves especially during peak harvest season, which is redu cing incentive for farmers to increase their farming productivity. On the other ha nd, continuity of clove as raw material is very important for the survival of kr etek cigarettes factory, since most of cloves needed come from domestic production and only around 25 percent supplied by world production. The objectives of this study are to analyze: (1) the linkages between national cloves and kr etek cigarettes industries and factors affecting them, (2) the development of cloves farming and its economic efficiency, and (3) the possibility of cooperation between cloves industry and kretek cigarettes industry to improve the performance of both industries in the future.
Keyword: Linkages, Cloves industry, Kretek cigarettes industry, Sinergistic cooperation, Kebijakan percengkehan nasional, Policy analysis matrix, Game theory, Sulawesi Utara

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