Judul: Evaluasi Fungsi Ekologis dan Estetika pada Beberapa Taman Kota di Jakarta
Abstrak: Taman kota adalah salah satu bentuk Ruang Terbuka Hijau yang seharusnya memberikan banyak manfaat bagi masyarakat. Taman kota sangat erat kaitannya dengan fungsi ekologis dan estetika. Kedua aspek ini dapat mempengaruhi kenyamanan pengguna. Penelitian ini bertujuan untuk: (1) mengidentifikasi vegetasi di taman kota beserta fungsinya, (2) mengevaluasi fungsi ekologis dan estetika di taman kota, dan (3) mengetahui persepsi dan preferensi masyarakat. Penelitian ini dilaksanakan selama enam bulan dan berlokasi di tiga taman kota di Jakarta, antara lain Taman Menteng, Taman Langsat, dan Taman Cattleya. Metode dari penelitian ini terbagi menjadi dua pendekatan, evaluasi fungsi ekologis dan evaluasi kualitas estetika, yang terdiri dari persiapan, inventarisasi, analisis, penilaian dan evaluasi, serta penyusunan informasi. Hasil penelitian ini berupa informasi fungsi ekologis dan estetika dari masing-masing taman kota yang akan dijadikan acuan bagi pemerintah daerah dan pihak terkait dalam aplikasi tata hijau di taman kota. Berdasarkan hasil penilaian fungsi ekologis, Taman Cattleya terbaik dalam fungsi peredam bising, Taman Menteng terbaik dalam fungsi modifikasi suhu dan penahan angin, sedangkan Taman Langsat terbaik dalam fungsi kontrol kelembaban udara. Berdasarkan penilaian estetika, Taman Cattleya memiliki kualitas estetika tertinggi, sementara Taman Langsat merupakan yang terendah.
Keyword: estetika, taman kota, fungsi ekologis, evaluasi lanskap

Judul: Analysis of City Parks Ecological Function for Central Jakarta Sustainability
Abstrak: Taman Kota sebagai ruang terbuka hijau, memiliki fungsi ekologis yang berperan dalam mendukung keberlanjutan kota. Jakarta Pusat memiliki beberapa taman kota yang berpotensi mendukung keberlanjutan kota jika berfungsi dengan optimal. Penelitian ini bertujuan menganalisis fungsi ekologis dan persepsi masyarakat terhadap fungsi ekologis di Taman Menteng, Taman Situ Lembang, dan Taman Suropati. Fungsi ekologis dinilai dengan membandingkan kondisi eksisting dengan kriteria yang telah ditetapkan, dan persepsi masyarakat didapatkan melalui kuesioner. Hasil penelitian menunjukkan ketiga taman memiliki fungsi yang berjalan cukup baik, namun masih perlu peningkatan dalam beberapa fungsi. Mayoritas responden menganggap fungsi sudah berjalan baik, namun mengharapkan beberapa fungsi dapat ditingkatkan., City parks, as green open spaces, serve an ecological function that plays a crucial role in supporting urban sustainability. In Central Jakarta, a few city parks have the potential to contribute significantly to the city's sustainability if their ecological functions are optimized. This research aims to analyze the ecological functions and public perceptions regarding these functions in Taman Menteng, Taman Situ Lembang, and Taman Suropati. Ecological functions assessed by comparing the current condition of each tree against established criteria, and public perceptions gathered through questionnaire data. The results indicate that each park is functioning adequately, but there is room for improvement in certain ecological functions. The majority of respondents acknowledge that the functions are performing well; however, they express a desire for some aspects of the functions to be improved.
Keyword: City Park, Ecological Function, Green Open Space, City Sustainability

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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