Judul: Pengaruh Migrasi Sirkuler Terhadap Kondisi Sosial Rumah Tangga Petani
Abstrak: The objectives of this research was to identify the push and pull factors that influence household decisions farmers circular migration, as well as analyzing the effect arising from circular migration to changes in children's education, social roles, patterns of farmers working hours, and the division of labor in farm households. The research was conducted in the Desa Pamanukan Hilir, Kecamatan Pamanukan, Kabupaten Subang. The research uses a quantitative approach to qualitative data supported by survey research methods. In the study it was found that circular migration affects the social conditions of farming households, among them: 1) The main factor farmers kepememiliki circular migration due to lack of land that affect the level of income (economics); (2) Farmers who migrated circularly adjust the division of labor in the household; (3) Households of migrant farmers have more motivation to achieve higher education of children; (4) Farmers use the grace period to work outside the agricultural sector, which affects the reduction of working hours in farming; and (5) Most of the social role of husband and wife when the husband is replaced doing migration.
Keyword: social role, division of labor, change in hours of work, the level of education of children, circular migration, Bogor Agricultural University (IPB)

Judul: The Effect of Circular Migration on the SocioEconomic Conditions of Migrant Households
Abstrak: Keputusan melakukan migrasi dipengaruhi oleh beragam faktor. Selain faktor di daerah asal, pandangan terhadap daerah tujuan migrasi pun memainkan peran penting. Perubahan kondisi sosial ekonomi yang positif menjadi hal yang didambakan oleh para pelaku migrasi, mengingat alasan umum yang mendasari peristiwa migrasi adalah faktor ekonomi. Tujuan penelitian ini yaitu menganalisis pengaruh migrasi sirkuler terhadap kondisi sosial ekonomi rumah tangga migran. Metode penelitian menggunakan pendekatan kuantitatif didukung pendekatan kualitatif. Pendekatan kuantitatif menggunakan metode penelitian survei dan pendekatan kualitatif menggunakan wawancara mendalam serta studi literatur. Data kuantitatif dianalisis dengan menggunakan uji t. Hasil penelitian menunjukkan terdapat perbedaan tingkat partisipasi dan tingkat pendapatan rumah tangga migran terhadap rumah tangga nonmigran. Sementara itu, tidak ada perbedaan signifikan antara kondisi rumah tinggal dan kepemilikan aset antara rumah tangga migran dengan rumah tangga nonmigran., The decision to migrate is influenced by a variety of factors. Apart from factors in the area of origin, the view of the migration destination also plays an important role. Changes in positive socio-economic conditions are something that migrants covet, considering that the general reason underlying the migration event is economic factors. The purpose of this study is to analyze the effect of circular migration on the socioeconomic conditions of migrant households. The research method uses a quantitative approach supported by qualitative approach. The quantitative approach uses survey research methods and a qualitative approach uses in-depth interviews and literature studies. Quantitative data were analyzed using t test. The results showed that there were differences in the level of participation and income levels of migrant households to non-migrant households. Meanwhile, there is no significant difference between housing conditions and asset ownership between migrant and non-migrant households.
Keyword: circular migration, migrant households, socio-economic conditions,

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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