Judul: Faktor-Faktor Pengikat Tenaga Kerja pada Sektor Pertanian di Kabupaten Karawang dan Desa Kabupaten Bogor
Abstrak: The high number of agricultural labors in the middle of rapid growth of industrial sector revealed that there are factors that maintain the labors in agriculture. This binding factors are limited to the farmers characteristics and the availability of the essentials for agricultural development. This study is aimed to analyze the influence of the farmers characteristics and the availability of the essentials for agricultural development to the labor transformation factors on 60 farmers by using survey method in Purwadana Village, Karawang District and Tegal Wangi Village, Bogor District. The variabel of land area, the amount of agricultural income contribution, and the availability of the essentials for agricultural development on Purwadana Village respondents have significant negative influence to the labor transformation factors. The variabel of land area and the number of household members of Tegal Wangi Village farmers have significant negative influence to the labor transformation factors. The differences of the test results due to the different profit and loss calculation system of farming in those two villages.
Keyword: Bogor Agricultural University (IPB), the farmer transformation, agricultural development, The characteristics of the farmers

Judul: Faktor-Faktor yang Memengaruhi Pola Penggunaan Tenaga Kerja Tahunan di Desa Barengkok dan Purasari, Kecamatan Leuwiliang, Kabupaten Bogor
Abstrak: Pola penggunaan tenaga kerja merupakan pemanfaatan tenaga kerja untuk mengelola hutan rakyat. Tujuan penelitian ini adalah mengidentifikasi, menganalisis perbedaan, hubungan, dan pengaruh pendapatan, upah, jumlah tanggungan keluarga, jumlah jenis tanaman, luas lahan, dan komposisi tenaga kerja. Penelitian ini dilakukan di Desa Barengkok dan Desa Purasari, Kecamatan Leuwiliang, Kabupaten Bogor. Pemilihan sampel menggunakan metode non probability sampling yaitu purposive sampling. Penelitian ini melibatkan 60 responden yang terdiri dari 30 responden dari Desa Barengkok dan 30 responden dari Desa Purasari. Terdapat pengaruh positif signifikan pendapatan dan jumlah jenis tanaman terhadap komposisi tenaga kerja di Desa Barengkok, artinya, semakin tinggi pendapatan berpengaruh semakin tinggi komposisi tenaga kerja. Jumlah jenis tanaman berpengaruh positif signifikan terhadap komposisi tenaga kerja, artinya semakin tinggi jumlah jenis tanaman berpengaruh terhadap tenaga kerja. Terdapat pengaruh negatif signifikan luas lahan terhadap komposisi tenaga kerja di Desa Purasari, artinya, semakin tinggi luas lahan berpengaruh semakin rendah komposisi tenaga kerja.
Keyword: hutan rakyat, komposisi tenaga kerja, penggunaan tenaga kerja

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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