Judul: Sistem nafkah rumahtangga petani kentang di dataran tinggi dieng (kasus desa Karangtengah, kecamatan Batur, kabupaten Banjarnegara, provinsi Jawa Tengah)
Abstrak: This research was conducted and located in the village of Karangtengah, District Batur, Banjarnegara Regency, Central Java for one month from 25 March to 25 April 2011. The purpose of this study was to determine the household livelihood strategy of potato farmers in the village of Karangtengah, Dieng plateau associated with the history of potato farming in the village. In addition, to find out how far potato farming can build sustainable livelihood systems for farmers households. This study uses a quantitative approach that is supported by qualitative data. Quantitative data obtained through a questionnaire to 31 households of farmers who were respondents in this study. While the qualitative approach is done through observation, depth interviews, and search related documents or literary study. Basically, agriculture has become the main source of income for potato farmers households in the village of Karangtengah. This is due to the farm that has been inherited into the identity of them from generation to the generation. However, limitations of resources, especially land as a place of production led to nine respondents in this study applying multiple livelihoods both of on farm and non farm strategie. During its development, potato farming is increasingly drained on resources. Although still becoming the leading sectors, but the threat to livelihood activities has been gradually happening for example the environmental degradation caused by agricultural activity that promotes the high production so that they use the excessive of chemical inputs.
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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: 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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