Judul: Manajemen Produksi Heliconia Secara Organik di Sekar Bumi Tropical Farm Payangan-Gianyar, Bali
Abstrak: Heliconia (Heliconia sp.) is tropical cut flowers. Bali is one province in Indonesia which has the optimum agro-climat and good market for Heliconia. Long vaselife and many kind of species of Heliconia make this flower favored. This internship activities carried out to determine the Heliconia (Heliconia sp.) organic farming system and identify Heliconia (Heliconia sp.) collection in Sekar Bumi Tropical Farm (SBTF). SBTF fertillizing used cow manure without sintetic chemical fertillizer. It applied zero waste system. We identified 16 Heliconia varieties growing up well from other 200 varieties exist. It was just 11 varieties from 16 varieties wich favored and marketable. It types among other H. bihai (L.) cv. Yellow Dancer, H. caribaea Lamarck x H. bihai (L.) L. cv. Jacquinii, H. chartacea Lane ex Barreiros cv. Sexy Pink, H. rostrata Ruiz & Pavon, H. sticta Huber cv. Oliveira Sharonii, H. caribaea Lamarck x H. bihai (L.) L. cv. Kawauchi, H. caribaea Lamarck cv. Barbados Flat, H. stricta Huber cv. Bucky, H. caribaea Lamarck cv. Gold, H. collinsiana Griggs var.collinsiana, H. psittacorum L.f. x H. spathocircinata Aristeguieta cv. Golden Torch.
Keyword: Vaselife, Organic farming, Heliconia

Judul: Pengelolaan Proses Produksi dan Pasca Panen Selada (Lactuca sativa L.) Secara Aeroponik dan Hidroponik Deep Flow Technique di Amazing Farm, Lembang, Bandung.
Abstrak: Vegetables are needed by human being as their consumption to fulfill their daily nutrition, that’s why the opportunity of vegetables production is widely opened to be developed. This opportunity drives people to use the suitable technique to gain optimum production as well as the quality, quantity and continuity, such as using aeroponic and hydroponic system. The internship was implemented in Amazing Farm, Field Cikahuripan 1, Lembang, Bandung. Amazing farm is one of the leading companies in horticultural products. The purposes of the internship were to get working experience and practical knowledge about production of aeroponic and hydroponic lettuce (green curly, lollorossa and romaine), discover the difference between aeroponic and hydroponic system, get management and post harvest experience and also help the company to solve problems in cultivation technique. Aeroponic system can produce lettuce crop better than hydroponic does. The post harvest observation of aeroponic and hydroponic lettuce didn’t show significant diference. The business analysis of lettuce production shows that aeroponic lettuce is more promising than hydroponic, although it needs large amount of capital for the investment.
Keyword: 

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
Keyword: