Judul: Factors Affecting Migration of Rice Farming Family Members and Their Contribution to the Farming Household (Case Study: Bawean Island, Gresik Regency)
Abstrak: Mayoritas pekerjaan masyarakat di Pulau Bawean adalah petani padi. Petani padi yang tinggal di Pulau Bawean didominasi oleh petani yang berusia lanjut. Banyak laki-laki yang masih berusia produktif memilih untuk tidak menjadi petani, khususnya petani padi. Mereka memilih bekerja di sektor non pertanian, salah satunya adalah menjadi pekerja migran. Penelitian ini bertujuan untuk: (1) menganalisis pendapatan usatahani padi, (2) menganalisis kontribusi remitan terhadap pendapatan rumahtangga petani padi, (3) menganalisis faktor - faktor yang memengaruhi migrasi anggota keluarga petani padi. Penelitian ini menggunakan analisis pendapatan usahatani, analisis kontribusi pendapatan dan analisis regresi model logistik biner. Hasil penelitian ini menunjukkan nilai R/C ratio atas biaya tunai dan atas biaya total lebih dari satu artinya usahatani padi di Pulau Bawean menguntungkan. Kontribusi pendapatan yang paling besar kontribusinya terhadap pendapatan total keluarga petani adalah remitan dan pendapatan usahatani yang menjadi sumber pendapatan utama bagi keluarga petani berada di urutan ketiga setelah kontribusi remitan dan pendapatan non usahatani. Faktor-faktor yang berpengaruh secara signifikan terhadap keputusan migrasi anggota keluarga petani padi adalah pendapatan responden, pendapatan keluarga responden dan riwayat pekerjaan. Kata kunci: kontribusi pendapatan, model regresi logistik, pekerja migran, remitan, R/C ratio
Keyword: kontribusi pendapatan, model regresi logistik, pekerja migran, remitan, R/C rasio

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: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4