Judul: Perilaku Makan dan Kebiasaan jajan murid Sekolah Mengengah Atas (Studi Kasus di SMA Negeri Cimidi, Kelurahan Sukaraja, Kecamatan Cicendo, Kotamadya Bandung, Jawa Barat)
Abstrak: Tujuan penelitian ini adalah untuk mengetahui perilaku makan dan kebiasaan jajan serta sumbangan makanan jajanan terhadap konsumsi makanan pada murid sekolah menengah atas. Penelitian dilaksanakan di SMA Negeri Cimindi, kelurahan Sukaraja, Kecamatan Cicendo, Kotamadya Bandung, Jawa Barat, dari bulan Juli 1991 sampai September 1991. Pengambilan contoh dilakukan secara acak sederhana dari populasi murid kelas II dan III Jurusan Fisika dan Biologi yang tinggal bersama orangtua, dengan jumlah 30 murid laki-laki dan 30 murid perempuan.
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Judul: Pengaruh pengetahuan gizi terhadap sikap dan kebiasaan jajan serta sumbangan jajanan terhadap kecukupan zat gizi  : (Studi kasus di SD Percobaan Negeri Sabang dan SD Negeri Ciujung, Kelurahan Cihapit, Kecamatan Bandung Wetan, Kotamadya Bandung, Propinsi Jawa Barat)
Abstrak: Tujuan penelitian ini adalah untuk mengetahui pengaruh pengetahuan gizi terhadap sikap dan kebiasaan jajan murid SD serta sumbangan jajanan terhadap kecukupan energi, protein, vitamin A, dan zat besi murid SD. Kedua SD diambil secara "purposif". Sampel diambil sebanyak 30 orang di masing-masing sekolah secara "acak sederhana". Data primer yang dikumpulkan meliputi: berat badan, umur, jenis kelamin, jumlah keluarga, dan anak ke berapa diperoleh dengan cara tertulis. Data pengetahuan gizi dan kebiasaan jajan sampel diperoleh dengan tertulis sedang data sikap jajan diperoleh dengan cara tertulis dan wawancara. Konsumsi makanan anak selama dua hari berturut-turut di peroleh dengan cara "recall".
Keyword: pengetahuan gizi

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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