Judul: Manajemen Penunasan Kelapa Sawit (Elaeis guineensis Jacq.) di Sungai Bahaur Estate, PT Windu Nabatindo Abadi, Kalimantan Tengah
Abstrak: The apprentice was conducted at Division 3 of Sungai Bahaur Estate (SBHE), PT Windu Nabatindo Abadi, Kotawaringin Timur, in Central Borneo Province from February untill June 2013. The assignment composed as field worker for one month, as accompanied foreman for one month and as accompanied of division’s assistant for two months. This apprentice was aimed to extend the knowledge and skill about technical and managerial aspects of oil palm plantation especially in canopy management. The specific observation was conducted on canopy management technique, sum of standed midrib, male and female infloresence and fruit bunch. Management canopy system was applied by corective pruning. The pruning system still was not done as well as standard operasional procedure, that caused by improper work of harvester and less uniformity of planting year in one block. Generally, pruning or canopy management at SBHE have been performed well enough, however there were need some improvement for overcoming less worker number, variation of working area and incentives system.
Keyword: 

Judul: Manajemen Penunasan Kelapa Sawit (Elaeis guineensis Jacq.) di Sungai Bahaur Estate, PT Windu Nabatindo Abadi, Kalimantan Tengah
Abstrak: This internship was conducted at Sungai Bahaur Estate (SBHE), PT Windu Nabatindo Abadi from March to July 2014. Apprenticeship aims to increase the understanding and skill on technical and managerial aspects of oil palm plantation, especially in pruning management. The observation was conducted on the pruning system, number of leaf frond retained, pruning technique, sex ratio of flower and number of fruit bunches. Pruning was applied according to corrective pruning system. The number of leaf frond which is maintained following the pruning techniques which is applied based on the age of the plant. The sex ratio of flowers are used to estimate the potential of plants to bear fruit. Implementation of pruning at SBHE had not run well according to SOP, several constraints were found such as the low discipline harvesters, lack of supervision, and the absence of strict sanctions.
Keyword: number of frond, sex ratio, pruning techniques

Judul: Mathematical Analysis of a Cholera Spread Infection Model  Using Vaccination
Abstrak: Kolera merupakan penyakit diare yang disebabkan infeksi pada usus oleh bakteri Vibrio cholerae. Bakteri tersebut masuk ke dalam tubuh seseorang melalui makanan dan minuman yang telah terkontaminasi yang akan mengeluarkan enterotoksin di dalam tubuh seseorang pada bagian saluran usus, sehingga menimbulkan diare disertai muntah yang akut dan sangat hebat, dan berakibat seseorang dalam waktu hanya beberapa hari akan kehilangan banyak cairan dalam tubuhnya sehingga mengalami dehidrasi. Penelitian ini bertujuan untuk menganalisis model untuk penyebaran infeksi kolera menggunakan vaksinasi. Terdapat dua titik tetap, yaitu titik tetap bebas penyakit dan titik tetap endemik. Pada simulasi numerik jika nilai reproduksi dasar yakni ℛ0 < 1 maka jumlah individu yang terinfeksi akan berkurang sehingga penyakit hilang. dst.., Cholera is a diarrheal disease caused by infection of the intestine by the bacterium Vibrio cholerae. These bacteria enter a person's body through contaminated food and drink, which will release enterotoxins in a person's body in the intestinal tract, causing diarrhea accompanied by acute and very severe vomiting, and resulting in a person just in a few days of losing a lot of fluids in the body so it becomes dehydrated. This study aims to analyze a model for the spread of cholera infection using vaccination. dst ..
Keyword: fungsi Lyapunov, infeksi kolera, vaksinasi