Judul: Pengaruh keterlibatan penggunaan produk, pengalaman ketidakpuasan dan akses informasi terhadap niat komplain  pengguna listrik
Abstrak: Adanya ketidakpuasan terhadap pelayanan listrik dapat memunculkan niat komplain dalam diri konsumen. Tujuan penelitian ini adalah untuk mengetahui pengaruh keterlibatan penggunaan produk, pengalaman ketidakpuasan dan akses informasi terhadap niat komplain terkait penggunaan listrik. Desain penelitian ini adalah cross sectional study dengan lokasi penelitian di Kelurahan Ciparigi, Kecamatan Bogor Utara. Contoh dalam penelitian ini sebanyak 120 orang yang terdiri atas suami atau istri yang mengambil keputusan untuk melakukan komplain ketika ada permasalahan terkait listrik dan sering berinteraksi dengan karyawan PLN. Pengambilan data dilakukan dengan wawancara menggunakan alat bantu kuesioner. Hasil penelitian menunjukkan bahwa faktor yang memengaruhi niat komplain adalah keterlibatan penggunaan produk, jumlah sumber informasi untuk komplain pada PLN dan status pekerjaan. Faktor yang tidak memengaruhi niat komplain adalah usia, lama pendidikan, pendapatan keluarga, pengalaman ketidakpuasan dan jumlah sumber informasi hak dan kewajiban konsumen., Dissatisfaction toward electrical service will trigger complain intention within a consumer. This research was aimed to analyze the effects of involvement product usage, dissatisfied experience and information accesess on complaining intention. This study used cross sectional design that held in Sub-district Ciparigi, District North Bogor. The samples in this research were 120 persons whether husband or wife who takes decision on complaining related to electricity and the people who are frequently interactive with PLN officer. The data was obtained by using questionaired interview. The result showed that the involvement product usage, the number of information access related to complaint and occupational status were positively significant influence on complaint intention. There were several factors did not influence on complaint intention, such as age, education length, family income, dissatisfied experiences and number of information resources related to consumer right and obligation.
Keyword: akses informasi, hak dan kewajiban konsumen, keterlibatan penggunaan produk, niat komplain, pengalaman ketidakpuasan

Judul: Pengaruh pengetahuan, motivasi, dan akses Informasi terhadap niat komplain pada pengguna listrik
Abstrak: Adanya ketidakpuasan terhadap pelayanan listrik akan memunculkan suatu niat kompain. Penelitian ini bertujuan untuk menganalisis pengaruh pengetahuan, motivasi, dan akses informasi terhadap niat komplain. Desain penelitian yang digunakan adalah cross sectional study dengan lokasi penelitian di Kelurahan Ciparigi, Kecamatan Bogor Utara, Kota Bogor. Contoh dalam penelitian ini sebanyak 120 suami atau istri yang mengambil keputusan dalam melakukan komplain ketika mengalami permasalahan tentang listrik dan yang sering berinteraksi dengan karyawan PLN atau PT PLN. Pengambilan data dilakukan dengan wawancara menggunakan kuesioner. Hasil penelitian menunjukkan bahwa motivasi komplain, jumlah informasi tentang komplain, dan status pekerjaan secara signifikan berpengaruh positif terhadap niat komplain. Faktor yang tidak berpengaruh terhadap niat komplain antara lain pengetahuan hak dan kewajiban konsumen dan komplain, jumlah sumber informasi tentang hak dan kewajiban konsumen, usia, jenis kelamin, lama pendidikan, dan pendapatan., The dissatisfaction toward electricity will triger complaint intention. This research was aimed to analyze effects of knowledge, motivation, and information accsess on complaint intention. This study used cross sectional design that held in Sub-district Ciparigi, District North Bogor, Bogor City. Samples involved in this research as many as 120 persons whether husband or wife who takes decision on complaint related to electricity and frequently interacting with PLN officer or PT PLN. The data was obtained by using questionnaired interview. The result showed that complaint motivation, the number of information accsess related to complaint and occupational status were positively significant influence on complaint intention. There were several factors did not influence on complaint intention, such as knowledge of consumer right and obligation also complaint, number of information resources related to consumer right and obligation, age, sex, education length, and income.
Keyword: niat komplain, pengetahuan, motivasi, akses informasi, dan kewajiban konsumen

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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