Judul: Analisis biplot dan rantai markov untuk menelaah perilaku konsumen majalah berita mingguan
Abstrak: Perpindahan merek (brand switching) majalah berita mingguan (MBM) akibat kelangkaan produk di pasar sering kali terjadi. Salah satu penyebabnya adalah persepsi konsumen yang tetap merasa terpenuhi kebutuhannya dengan membeli majalah lain. Dalam penelitian ini dipelajari persepsi konsumen di tiga kota, Bandung, Medan dan Surabaya terhadap derajat kepentingan atribut majalah serta perpindahalihan dari MBM yang satu ke MBM yang lain. Persepsi konsumen dianalisis dengan menggunakan metode biplot, sedangkan perpindahalihan dianalisis dengan menggunakan rantai Markov.
Keyword: brand switching, perilaku konsumen, persepsi konsumen

Judul: Analisa perilaku konsumen mi kering non-instan sebagai suatu dasar strategi produk dan promosi "mi ayam putih" di Jakarta : kasus 30 konsumen mi kering non-instan
Abstrak: Topik penelitian ini diambil karena ketertarikan peneliti untuk membuat suatu strategi produk dan promosi yang berorientasi pada perilaku konsumen. Perusahaan- perusahaan besar seperti P&G, Unilever, IBM selalu mendasarkan strategi pemasarannya pada preferensi konsumen. Dengan mengambil kasus lambannya pertumbuhan produk Mi Ayam Putih (MAP) dan 30 responden mi kering non-instan di Jakarta, penelitian ini bertujuan menganalisa perilaku konsumen target MAP dan membuat alternatif strategi produk dan promosi MAΡ. Teori yang mendasari penelitian ini adalah teori- teori perilaku konsumen yang dikaitkan dengan teori-teori manajemen pemasaran. Selain menggunakan uji rank Spearman, pola perilaku konsumen dianalisa dengan tabulasi silang maupun deskriptif. Hasil penelitian menunjukkan adanya korelasi antara tahap-tahap keputusan pembelian mi kering non-instan dengan beberapa faktor internal maupun eksternal individu konsumen...
Keyword: 

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.
Keyword: