Judul: Dampak Kebisingan terhadap Proses Belajar Mengajar di SMA Negeri
Abstrak: Tesis ini merupakan hasil penelitian yang bertujuan untuk mengetahui tingkat kebisingan yang dapat memberikan dampak terhadap proses belajar-mengajar siswa-siswa SMA Negeri di Ujung Pandang. Hasil penelitian diharapkan dapat memberikan tambahan informasi dan dapat membantu pemerintah dalam merumuskan arah kebijaksanaan perencanaan di bidang pendidikan khususnya di Kotamadya Ujung Pandang.
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Judul: Menentukan faktor-faktor yang mempengaruhi proses belajar
Abstrak: Proses belajar di sekolah maupun di rumah banyak dipengaruhi oleh faktor lingkungan, disamping siswa itu sendiri. Masalah yang kemudian timbul faktor adalah masih mudahnya siswa dipengaruhi oleh lingkungannya, terutama lingkungan kelas dimana siswa berada. latar belakang yang dimiliki siswa sangat baik, Walaupun pengaruh lingkungan akan tetap ada dan perlu mendapat perhatian. Penulis mencoba melihat masalah tersebut dengan terlebih dahulu mencari literatur tentang faktor-faktor yang mempengaruhi proses belajar. Kemudian penulis mencoba menentukan peubah-peubah yang penting untuk mendapatkan informasi yang diperlukan dalam menentukan faktor-faktor yang mempengaruhi proses belajar siswa. Untuk keperluan mendapatkan informasi secara lang- sung dari siswa, penulis telah menyebarkan kuisoner kepada siswa-siswi Sekolah Lanjutan Tingkat Atas di SMA N 5 Bogor. Terlebih dahulu penulis berdiskusi dengan guru setempat tentang kelas-kelas yang diharapkan dapat cukup mewakili keadaan siswa-siswi di SMA N 5 tersebut, sehingga pengambilan contoh diharapkan cukup representatif. ...
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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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