Judul: Evaluation of the Suitability of Ecological
and Aesthetic Functions of Two Program Pengembangan Kota Hijau Parks in
Bekasi City
Abstrak: Kota Bekasi mengalami penurunan kualitas lingkungan akibat kepadatan penduduk dan pembangunan infrastrukturnya. Taman sebagai ruang terbuka hijau dapat membantu mengatasi permasalahan ini. Taman Hijau Pekayon dan Taman Bantargebang merupakan salah satu hasil dari Program Pengembangan Kota Hijau di Kota Bekasi yang sudah diresmikan cukup lama. Penelitian ini bertujuan untuk mengidentifikasi jenis dan fungsi tanaman, mengevaluasi fungsi ekologis dan estetika, serta memberikan rekomendasi perbaikan pada kedua taman tersebut. Metode analisis KPI dan THI digunakan untuk menilai fungsi ekologis, sementara metode SBE digunakan untuk menilai fungsi estetika taman. Persepsi pengunjung juga dijadikan sebagai bahan pembanding dari hasil analisis yang dilakukan. Hasil penelitian menunjukkan bahwa Taman Hijau Pekayon memiliki 17 spesies tanaman dengan 61 individu, sedangkan Taman Bantargebang memiliki 16 spesies dengan 60 individu. Secara keseluruhan, Taman Hijau Pekayon memiliki fungsi ekologis yang lebih baik, sementara Taman Bantargebang lebih baik dalam fungsi estetikanya. Rekomendasi yang difokuskan dari fungsi ekologis pada kedua taman mencakup penambahan strata tanaman di tepi taman untuk meningkatkan fungsi penahan angin dan peredam bising serta penambahan tanaman penaung untuk menurunkan nilai THInya. Rekomendasi penambahan tanaman display dan fasilitas diberikan untuk meningkatkan estetika pada lanskap dengan nilai SBE rendah. Rekomendasi dibuat dengan gambar ilustrasi dan deskripsi pada kedua taman., Bekasi City is experiencing a decline in environmental quality due to population density and infrastructure development. Parks as green open spaces can help overcome this problem. Taman Hijau Pekayon and Taman Bantargebang are one of the results of the Program Pengembangan Kota Hijau in Bekasi City which has been inaugurated for a long time. This study aims to identify the types and functions of plants, evaluate ecological and aesthetic functions, and provide recommendations for improvements to the two parks. The KPI and THI analysis methods were used to assess the ecological function, while the SBE method was used to assess the aesthetic function of the park. Visitors' perceptions are also used as a comparison of the results of the analysis conducted. The results showed that Taman Hijau Pekayon has 17 plant species with 61 individuals, while Taman Bantargebang has 16 species with 60 individuals. Overall, Taman Hijau Pekayon has a better ecological function, while Taman Bantargebang is better in its aesthetic function. Recommendations focused on ecological functions in both parks include the addition of plant strata at the edge of the park to improve its windbreak and noise-canceling functions and the addition of shade plants to reduce its THI value. Recommendations for the addition of display plants and facilities were given to improve aesthetics in landscapes with low SBE scores. Recommendations were made with illustrative drawings and descriptions of both parks.
Keyword: Evaluasi, ekologis, estetika

Judul: Analysis of ecological function of urban green open space for Bekasi's sustainability
Abstrak: Penelitian ini dilakukan untuk menganalisis kesesuaian fungsi ekologis dan persepsi masyarakat terhadap peran taman kota bagi keberlanjutan Kota Bekasi. Penelitian difokuskan pada tiga RTH yaitu Taman Kota Bekasi, Taman Pemerintah Kota Bekasi dan Hutan Kota Patriot Bina Bangsa yang berada di Kota Bekasi dengan luas masing-masing 1,19 Ha, 6,80 Ha dan 6,50 Ha. Penelitian ini dilakukan dengan tahapan persiapan, inventarisasi, analisis dan sintesis. Pengumpulan data dilakukan melalui observasi lapangan, wawancara dengan pengelola, studi literatur dan penyebaran kuesioner. Diperoleh taman-taman di Kota Bekasi sesuai terhadap fungsi ekologisnya karena dapat mereduksi kebisingan sebesar 16,03 dBA, menurunkan suhu sebesar 3,01°C, dan mengendalikan kelembaban sebesar 3,22%. Mayoritas responden sadar akan keberlanjutan dan peran mereka dalam mencapai keberlanjutan tersebut, juga sadar akan tindakannya dalam menjaga lingkungan dan berperan penting dalam keberlanjutan Kota Bekasi. Hal tersebut perlu mendapat dukungan pemerintah dalam pengembangan fasilitas dan utilitas serta sarana dan prasarana yang ada seperti taman kota yang ada di sekitar Kota Bekasi., This research aimed to analyze the ecological functions and public perceptions of urban parks in relation to the sustainability of Bekasi City. The research focused on three green spaces, namely Bekasi City Park, Bekasi City Government Park and Patriot Bina Bangsa Urban Forest in Bekasi City with an area of 1,19 Ha, 6,80 Ha and 6,50 Ha respectively. This research was conducted with the stages of preparation, inventory, analysis and synthesis. Data was collected through field observations, interviews with managers, literature studies and distributing questionnaires. The results show that the parks in Bekasi City fulfill their ecological functions as they can decrease noise levels by 16,03 dBA, lower temperature by 3,01°C, and control humidity by 3,22%. The majority of respondents are aware of sustainability and their contribution towards its attainment. Additionally, they acknowledge their environmental preservation efforts and pivotal role in the sustainability of Bekasi City. This needs government support in the development of facilities and utilities as well as existing facilities and infrastructure such as city parks around Bekasi City.
Keyword: Analisis, Keberlanjutan, Ruang terbuka hijau, green open space, 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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