Judul: Pengalihan Penguasaan Lahan dan Akibatnya pada Sistem Penghidupan Rumah Tangga Petani Penggarap (Studi Kasus: Desa Bojonghaleuang, Kecamatan Saguling, Kabupaten Bandung Barat)
Abstrak: Indonesia merupakan negara dengan kekayaan alam yang melimpah. Kekayaan alam ini, terutama di sektor pertanian merupakan salah satu hal yang sangat potensial untuk meningkatkan kesejahteraan masyarakat di Indonesia. Seiring dengan meningkatnya jumlah kepadatan penduduk di Indonesia, pengalihan penguasaan lahan pertanianpun semakin hari semakin meningkat, sebagaimana yang terjadi di Desa Bojonghaleuang, Kabupaten Bandung Barat, Jawa Barat. Penelitian ini bertujuan untuk melihat bentuk-bentuk pengalihan penguasaan lahan di Desa Bojonghaleuang dan juga melihat bagaimana struktur dan strategi nafkah rumah tangga yang kawasannya terekspansi oleh perusahaan pengembang perumahan. Jenis data yang dikumpulkan dalam penelitian ini adalah data primer dan data sekunder. Pendekatan penelitian yang digunakan untuk menggali fakta, data, dan informasi di lokasi penelitian adalah pendekatan kuantitafif dan didukung oleh pendekatan kualitatif. Hasil penelitian ini menunjukan bahwa sebelum adanya ekspansi lahan sumber pendapatan terbesar berasal dari sektor pertanian. Sementara itu luas lahan pertanian yang dijual hanya berpengaruh terhadap struktur nafkah on-farm., Indonesia is a country with abundant natural resources. This natural resouce especially in the agricultural sector, is one thing that has the potential to improve the welfare of people in Indonesia. Along with the increasing population density in Indonesia, the transfer of ownership of agricultural land is increasing day by day, as happened in Bojonghaleuang Village, West Bandung Regency, West Java. This study aims to look at the forms of transfer of land tenure in Bojonghaleuang Village and also to see how the structure and strategy of household livelihoods have been expanded by housing development companies. The types of data collected in this study are primary data and secondary data. The research approach used to explore facts, data and information at the research location is a quantitative approach and is supported by a qualitative approach. The results of this study indicate that before land expansion, the largest source of income came from the agricultural sector. Meanwhile, the area of agricultural land sold only affects the on-farm livelihood structure.
Keyword: land expansion, livelihood strategy, income structure, transfer of control

Judul: The Change of Agricultural Land Tenure and Farmer’s Household Welfare (Case Study: Housing Development, Bengle Village, Majalaya District, Karawang Regency, West Java)
Abstrak: Sebagian besar penduduk di Indonesia menggantungkan hidup pada sektor pertanian. Namun, Badan Pusat Stasistik (BPS) mencatat terjadi penurunan luas baku lahan pertanian di Indonesia menjadi 7,1 juta hektar pada 2018 dibanding data sensus 2013. Salah satu permasalahan yang mengancam masa depan pertanian Indonesia yaitu kompetisi penggunaan lahan pertanian dengan non pertanian yang dimenangkan oleh non pertanian sehingga terjadiah konversi lahan pertanian. Konversi lahan memiliki hubungan dengan penguasaan lahan pertanian yang berkaitan dengan kesejahteraan rumah tangga petani. Penelitian ini bertujuan untuk menganalisis hubungan perubahan penguasaan lahan pertanian dengan tingkat kesejahteraan rumah tangga petani. Metode yang digunakan yaitu metode kualitatif dan didukung oleh data kuantitatif. Pemilihan responden dilakukan dengan teknik sensus dengan total 20 rumah tangga petani yang lahannya terkonversi. Hasil penelitian ini menunjukkan bahwa terdapat hubungan tidak nyata antara perubahan status penguasaan lahan dan tingkat kesejahteraan rumah tangga petani dan terdapat hubungan nyata antara perubahan luas penguasaan lahan dan tingkat kesejahteraan rumah tangga petani
Keyword: agricultural land tenure, land conversion, welfare

Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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