Judul: Pengelolaan Pemanenan Kelapa Sawit (Elaeis guineensis Jacq.) di PT. Aneka Intipersada Pinang Sebatang Estate, Kabupaten Siak , Privinsi Riau
Abstrak: The internship program has been conducted at PT. Aneka Intipersada Pinang Sebatang Estate, Siak, Riau from February 13 to May 13 2012. The purpose of this internship program is to learn oil palm cultivation, especially for oil palm harvesting aspects. The data to be collected consist of primary and secondary data. Generally, harvest port and fruit grade in Unit Pinang Sebatang Estate are good enough with ratio of loses fruit under the standard that has been stated by the company about 1.8% and fruit ripeness average reaching more than 95%. Harvest tools and self protection tools are given by the company and it is used orderly by harvesting labors. The transportation unit capacity are completed with the transportation labor in every unit according to the capacity. The main problem in harvesting is the increasing of harvesting rotation from 7 to 9 days. The absence of worker, freeday, and rain in workday are the main cause of this problem.
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Judul: Manajemen Pemanenan Kelapa Sawit (Elaeis guneensis Jacq.) di Teluk Siak Estate, PT Aneka Intipersada, Minamas Plantation, Riau
Abstrak: Internship program enhanced knowledge, skill and working experience at oil palm plantation. This activity was conducted from February to June 2013 at Teluk Siak Estate, PT Aneka Intipersada, Minamas Plantation, Riau. The method used was divided into three stages, employee, co-mandor and co-field assistant. Moreover, the observation of variables that would be analyzed were conducted paralelly. Variables observed were harvest interval, harvest density, labour management, harvest quality control and transportation management. The data collected was statistically analyzed using sum operation and t-test. The work achievement during the internship program was technically still under the standard of the plantation company. The analysis result indicated that Teluk Siak Estate 1st Division had generally implemented good oil palm harvest management. Harvesting problems that found at Teluk Siak Estate 1st Division were lack of labour and inappropiate pruning. Moreover, it is indicated that there was no difference between peat soil and mineral soil in harvest density, meanwhile in production and average bunch weight variables was significantly different.
Keyword: supervision, labour, harvest interval, harvest density

Judul: Persamaan Geodesik Black Hole dengan Metrik Kerr 4+1 Dimensi dalam Koordinat Waktu Kosmik
Abstrak: Persamaan geodesik black hole dengan metrik Kerr 4+1 dimensi dalam koordinat waktu kosmik merupakan interpretasi lain dari persamaan geodesik black hole dengan metrik Kerr 4+1 dimensi, dimana acuan waktu yang digunakan diubah dari koordinat waktu wajar (proper time) ke dalam koordinat waktu kosmik (cosmic time). Waktu kosmik merupakan koordinat waktu yang dimana pengamat bergerak mengikuti ekspansi dari alam semesta. Penelitian ini merekonstruksi persamaan geodesik black hole dengan metrik Kerr 4+1 dimensi yang telah ditemukan pada penelitian sebelumnya menjadi persamaan geodesik yang memiliki fungsi terhadap dimensi waktu (t). Hasil akhir dari transformasi persamaan dapat digunakan sebagai bahan studi pustaka untuk penelitian lebih lanjut mengenai persamaan geodesik black hole dalam koordinat waktu kosmik.
Keyword: Dimensi ekstra, Metrik Kerr, Persamaan geodesik, Waktu kosmik