Judul: Rating Analysis for Kinds of Programme on Private TV
Abstrak: Rating suatu acara dapat dijadikan ukuran selera pemirsanya. Dari data rating 12 jenis acara di RCTI, SCTV, TPI, ANTV, dan IVM hasil survei SRI di Jabotabek, Bandung, Semarang. Medan, dan Surabaya dikaji bagaimana selera pemirsa menentukan kemiripan antar stasiun TV tersebut. RCTI dan IVM mempunyai kemiripan dalam jenis acara film seri Indonesia, komedi, film lepas barat, dan film lepas Indonesia, sedang sangat berbeda untuk berita nasional, olahraga, dan kuis. TPI dan SCTV hampir mirip untuk semua jenis acara dan mempunyai rating yang rendah, kecuali agak lebih baik untuk film seri dan film lepas selain barat dan Indonesia. ANTV tampaknya kurang berhasil dalam mengejar target pasarnya dan tidak menunjukkan jenis acara yang menonjol yang disukai pemirsa. Namun beberapa acaranya mempunyai kemiripan dengan RCTI.
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Judul: The application of cluster and biplot analyssis for television program rating data
Abstrak: Television is one of the greatest inventions in 20th century. It can provide people with the actual news and information and also at the same time give them entertainment. The television industry has grown rapidly in the past 15 years since the government permits the establishment of commercial TV stations. As the medium of information, television has become the main choice for companies to advertise their products. Since there are eleven TV stations in Indonesia, advertisers have to make plan and strategy to broadcast the advertisement. Through proper statistical analysis, the information about which TV station should be chosen and when to broadcast the advertisement can be obtained. Data used in this study was secondary data from Nielsen Media Index from February 1-29th 2004, which was subscribed by Hotline Advertising. The data contains television rating for every programs that was broadcasted by eleven TV stations on February 2004. The results from cluster analysis on February 2004 categorize the eleventh TV stations into five groups/clusters. Each cluster has their own characteristics that are very useful for the advertisers. By constructing biplot, the information of strategic time on every day for each TV station can be obtained. The results from the biplot were suitable to explain the conditions that occur on February.
Keyword: cluster and biplot analysis, television, rating

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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