Judul: Manajemen Pemanenan dan Penanganan Pasca Panen Kelapa Sawit (Elaeis guineensis Jacq) di Teluk Siak Estate PT Aneka Intipersada, Minamas Plantation, Siak, Riau
Abstrak: The apprentice was conducted in Teluk Siak Estate, PT Aneka Intipersada, Riau from February until May 2012. The purpose of the apprentice generally was to developed intern’s knowledge and work experience in palm oil plantation. The main purposes were to learn the management of harvesting and post harvest handling of oil palm to obtain a quality crude palm oil (CPO). Crop density in Teluk Siak Estate tend to be rather low, so not much fruits can be harvested. The percentage density of crop ranging from 12% until 19%. Flooding and losses fruits is still the cause of the production is not optimal. The percentage of unripe fruit was 0% (standard 0%), under ripe fruit was 4.02% (standard < 5%), ripe fruit was 95.98% (standard > 95%), and empty bunch was 0% (standard 0%). Harvesting of unripe fruits will reduce oil extraction rate (OER) value, and over ripe fruits will be increase to free fatty acid (FFA) value.
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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: 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