Judul: Hubungan karakteristik petani dan aktivitas komunikasi dengan tingkat pengetahuan mereka tentang dampak perladangan berpindah dan pola pertanian menetap di Kecamatan Jarai Kabupaten Lahat
Abstrak: Menyadari banyaknya kerugian sebagai akibat dari kegiatan perladangan berpindah, Pemerintah Daerah Tingkat II Kabupaten Lahat sejak tahun 1988 telah berupaya untuk melakukan pembinaan terhadap petani peladang berpindah melalui kursus-kursus, penyuluhan, penyebaran informasi melalui media massa baik media cetak maupun media elektronik dan tokoh masyarakat. Pembinaan tersebut telah dilakukan di Kecamatan Jarai Kabupaten Lahat yang melibatkan petani peladang berpindah dengan karakteristik yang berbeda. Menjadi pertanyaan sekarang adalah mengapa berbagai upaya yang dilakukan selama ini belum menunjukkan hasil yang menggembirakan, walaupun pembinaan terhadap peladang berpindah itu telah dilakukan secara intensif .. dst
Keyword: pengetahuan petani, pola pertanian menetap, karakteristik petani

Judul: Hubungan Karakteristik Petani Kedelai dengan Kepuasan Mereka pada Bimbingan Penyuluhan Pertanian di Kabupaten Lahat Sumatera Selatan
Abstrak: The satisfaction of the soybean farmers in agriculture extension activity is an emotional situation, that is when their needs are met through agricultural extension activities. The objectives of the study were: (1) to describe the soybean farmers’ characteristics, (2) to identify the satisfaction of soybean farmers through agricultural extension activities, and (3) to analyze relationship between the soybean farmers’ characteristics and their satisfaction in agriculture extension activities. The research applied descriptive correlation and population covered with soybean farmers in Lahat regency. The number of the respondents are 66 soybean farmers in Lahat regency were took with proportional random sampling. The data were collected on May to June 2007. The data were analyzed using Konkordansi Kendall W test. The results of this research were: mostly soybean farmers had old age, low education formal or achieved only at elementary school, moderat experience in farming, medium land property,less interaction with agricultural extension educator, high consumption of media, low access in credit fund, moderate in training activities and high cosmopolitanism. The soybean farmers satisfy in agriculture extension activities with regard to: (1) agricultural informations, (2) training, (3) develop and improve farmer institution, (4) application of extension methods. Meanwhile less in: (1) guiding on farming, (2) application of a technology, (3) planning of agricultural extension education, (4) sufficiency of production means, technology and marketing. There was high significant correlation between farmer characteristics and their satisfaction in agricultural extension activities.
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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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