Judul: Studi mutu sekolah melalui nem SMA sekotamadya Bandung
Abstrak: Penelitian ini mengkaji nilai-nilai bidang studi Ebtanas untuk melihat peranannya sebagai indikator mutu sekolah. Dari hasil analisis biplot diperoleh bahwa komponen pertama merupakan indikator prestasi sekolah. secara umum, sedangkan Komponen kedua menunjukkan prestasi sekolah pada pelajaran-pelajaran pokok masing-masing jurusan. Selain itu sekolah-sekolah dapat dikelompokkan menjadi tiga kelompok, yaitu sekolah-sekolah yang terletak di sebelah kiri titik asal dianggap memiliki prestasi rendah, sekolah-sekolah yang terletak di sebelah kanan tetapi tidak jauh dari titik asal adalah kelompok sekolah dengan prestasi sedang; sedangkan sekolah-sekolah dengan prestasi baik terletak jauh di sebelah kanan titik asal. Masing-masing sekolah berprestasi baik ini ialah SMAS Santo Aloysius 1 dan 2, SMAS BPK 1, dan SMAN Bandung 3.
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Judul: Beberapa Indikator Mutu Akademik SMA di Indonesia
Abstrak: Penelitian ini bertujuan untuk memepelajari keragaman mutu akademik SMA, khususnya SMA Negeri jurusan IPA di Indonesia, serta beberapa indikator yang dapat menjelaskan keragaman ini. Keragaman mutu akademik ini dipelajari dengan menggolong-golongkan 102 SMA Negeri peserta tes nasional yang diadakan Direktoral Pendidikan Menengah Umum tahun 1981 dan tahun 1982. Mataajaran yang diujikan dalam tes nasional ini adalah bahasa Indonesia, matematika, fisika, ilmu kimia, dan biologi. Berdasarkan skor masing-masing sekolah dalm tiap mataajaran yang diujikan, sekolah-sekolah ini digolong-golongkan dengan menggunakan sidik gerombol Scott-Knott.
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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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