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: Dampak Krisis Ekologi terhadap Strategi Nafkah Rumahtangga Petani di Desa Ciganjeng, Kecamatan Padaherang, Kabupaten Pangandaran
Abstrak: The phenomenon of ecological crisis that occured in Ciganjeng Village is the flood stricken rice fields and settlement every year. Flooding caused the existence of farm households as the main actors in the ecology are threatened and to maintain the sustainability of their lives, they have livelihood strategies. This study was conducted to analyze the impact of the ecological crisis on livelihood strategies of farm household. This research method is a survey research using quetionnaires and qualitative approach using case studies and observations as supporting quantitative data. Based on a study of 35 respondents farm households, it was found that the ecological crisis caused farm households should have livelihood strategies, which are: human resource allocation strategy, multiple livelihood strategy, migration strategy, agricultural intensification strategy, dept strategy and non agricultural invesment strategy. Livelihood strategis are made by playing five livelihood assets. In addition, although the ecological crisis rocked farm households but they still survive because they have a high livelihood resiliency.
Keyword: livelihood resiliency, farm household, livelihood strategy, ecology crisis

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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