Judul: Analisis pembentukan niat penggunaan listrik prabayar pada rumah tangga melalui Theory of Planned Behavior
Abstrak: Menghadapi keterbatasan sumber energi fosil, pemerintah membuat inovasi baru dengan membuat sistem listrik prabayar untuk mengurangi penggunaan energi. Rumah tangga adalah konsumen terbesar listrik di Indonesia. Tujuan penelitian ini adalah untuk menganalisis pembentukan niat penggunaan listrik prabayar pada rumah tangga melalui pendekatan Theory of Planned Behavior (TPB). Penelitian ini menggunakan desain cross sectional study, melibatkan 130 orang. Lokasi penelitian dipilih secara purposive, yaitu Kelurahan Padasuka, Kabupaten Bogor. Responden dalam penelitian ini adalah suami atau istri. Pengumpulan data dilakukan dengan teknik wawancara menggunakan kuesioner. Hasil menunjukkan bahwa usia berhubungan positif signifikan dengan norma subjektif. Selain itu, usia berhubungan negatif signifikan dengan kontrol perilaku. Hasil penelitian menunjukkan bahwa sikap, norma subjektif, dan kontrol perilaku berhubungan positif signifikan dengan niat penggunaan listrik prabayar. Pada model pertama dan kedua, sikap dan norma subjektif mempengaruhi niat penggunaan listrik prabayar.
Keyword: Listrik Prabayar, Rumah Tangga, Theory of Planned Behavior

Judul: Analisis pembentukan perilaku hemat listrik dengan pendekatan norm activation model (kasus pelanggan listrik rumahtangga di Kota Bogor)
Abstrak: The use of electrical energy is an important factor to support some activities in daily life, industries, households, educational activities, transportations, lightings, and communications. Indonesian people are still doing inefficient utilization of energies, including electrical energy. Saving the energy is an important part of efficiency. The study was aimed to analyze: 1) characteristics of household at differnt electricity power class; 2) the correlations between awareness, responsibility, personal norms, behavior intention and electrical energy saving behavior in household; 3) factors that influence norm activation model in household; 4) some factors which influence the electrical energy saving behavior, electrical cost and the use of electrical tools in household. This study design was cross sectional study. This study was conducted in Taman Cimanggu region which is a location where KDK (Kedung Waringin Komplek) electrical substation exists, with the subject was household in Taman Cimanggu. The results found that respondent get the information about electrical energy saving from many medias and reference groups. The awareness, resposibility, personal norms, and behavior intention variable were not correlated with electrical energy saving behavior. Respondents were still to intend to save the energy, however they were not doing some actions. Althought respondents want to do some actions to save the electrical energy, but it is still on average level. The multiple linear regression result showed that some factors which have significant effect on electrical energy saving behavior, that were: electrical power class, knowledge, number of information and responsibility.
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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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