Judul: Spatial Conformity of Spatial Plan, Green Open Space, and Environmental Sustainability on West Jakarta City
Abstrak: Kota Jakarta Barat adalah kota dengan kepadatan penduduk terbesar kedua di Provinsi DKI Jakarta sebesar 19.592 jiwa per km². Pembangunan yang meningkat akibat tingginya peningkatan penduduk menyebabkan kebutuhan lahan semakin besar dan mendorong terjadinya konversi lahan. Konversi lahan yang intensif menyebabkan kemungkinan ketidakselarasan tutupan/penggunaan lahan eksisting dengan rencana pola ruang Rencana Detail Tata Ruang (RDTR). Keterbatasan lahan di kawasan perkotaan menyebabkan terjadinya perubahan tutupan/penggunaan lahan termasuk semakin berkurangnya ruang terbuka hijau (RTH). Kondisi RTH berkaitan terhadap keberlanjutan lingkungan suatu wilayah. Keberlanjutan lingkungan diketahui melalui indeks penilaian kualitas lingkungan untuk melihat keberlanjutan lingkungan pada skala lokal yaitu menggunakan Local Environmental Sustainability Index (LESI). Penelitian ini bertujuan untuk menganalisis keselarasan tutupan/penggunaan lahan dengan pola ruang RDTR Kota Jakarta Barat, mengetahui kecukupan luas RTH berdasarkan luas wilayah dan jumlah penduduk Kota Jakarta Barat, menganalisis keberlanjutan lingkungan Kota Jakarta Barat, dan menganalisis keterkaitan RTH dengan keberlanjutan lingkungan Kota Jakarta Barat. Hasil penelitian menunjukkan tutupan/penggunaan lahan terluas di Kota Jakarta Barat yaitu perumahan seluas 5485.53 ha. Secara keseluruhan tutupan/penggunaan lahan eksisting sudah selaras dengan rencana pola ruang RDTR yaitu seluas 9.067,56 ha (83.21%) sedangkan tidak selaras seluas 1.829,91 ha (16.79%). Berdasarkan ketentuan Undang-undang No.26 Tahun 2007 luas RTH publik dan privat eksisting masih kurang berdasarkan luas wilayah sebesar 823,87 ha (6.36%) dan 745,01 ha (5.75%). Berdasarkan standar kebutuhan RTH jumlah penduduk luas RTH publik dan privat masih kurang sebesar 2.758 ha. Keberlanjutan lingkungan yang direpresentasikan oleh nilai LESI didominasi oleh nilai LESI rendah sebanyak 32. RTH berkorelasi positif terhadap nilai LESI. Semakin tinggi luasan RTH, maka semakin tinggi nilai LESI suatu wilayah., West Jakarta City is a city with the second largest population density in DKI Jakarta Province (19,592 people per km²). Increased physical development due to the highdens population and activities cause land conversion. Intensive land conversion causes the possibility of misalignment of the existing land use with the Local Detailed Spatial Plan (RDTR). Limited land in urban areas causes land use changes and decrease green open space (RTH). The condition of green open space affects the environmental sustainability of an urban area. Environmental sustainability at the local level can be measured through Local Environmental Sustainability Index (LESI). This study aims to analyze the conformity of actual land use with the West Jakarta City spatial pattern plan (RDTR), to determine the adequacy of the green open space based on the area and population of West Jakarta City, to analyze environmental sustainability of West Jakarta City, and to analyze the relationship between green open space and environmental sustainability of West Jakarta City. The results showed that the largest land cover of West Jakarta city was housing with an area of 5485.53 ha. Overall, the existing land cover that is in line with the spatial pattern plan of the RDTR is 9,067.56 ha (83.21%) while it is not aligned with spatial plan of 1,829.91 ha (16.79%). Considering the Spatial Planning Law No.26 of 2007, existing public and private green open spaces, which are 823.87 ha (6.36%) and 745.01 ha (5.75%) respectively, are still insufficient. Based on the standard, the need for green open space based on the total
Keyword: existing land cover, spatial conformity, Detailed Spatial Plan (RDTR), local sustainability index (LESI)

Judul: Analysis of Green Open Space in East Jakarta
Abstrak: Ruang Terbuka Hijau (RTH) berfungsi untuk menjaga kestabilan lingkungan dalam suatu kota. Selain aspek lingkungan, RTH juga berpengaruh terhadap aspek lainnya yaitu aspek sosial, ekonomi maupun keestetikaan sebuah kota. Jakarta Timur merupakan salah satu wilayah administrasi yang menyumbangkan persentase relatif kecil bagi total RTH di DKI Jakarta, belum memenuhi batas minimum luas, sehingga rencana pengembangan RTH di lokasi ini secara strategis perlu direncanakan. Penelitian ini bertujuan untuk mengetahui tingkat perkembangan hirarki setiap kecamatan di Jakarta Timur menggunakan analisis skalogram, mengetahui kebutuhan dan kecukupan RTH Jakarta Timur, mencari faktor-faktor yang berpengaruh terhadap luas RTH di Jakarta Timur dengan analisis regresi berganda dan mengetahui prioritas kecamatan di Jakarta Timur yang berpotensi untuk dilakukan peningkatan RTH dengan aplikasi metode AHP. Hasil penelitian menunjukkan bahwa Kecamatan dengan perkembangan yang paling baik adalah Kecamatan Pulo Gadung yang ditandai dengan jumlah hirarki 1 yang terbanyak yaitu sebanyak tiga kelurahan. Selain itu tidak ada keseragaman dalam pola perkembangan hirarki setiap wilayah. Kebutuhan RTH di Jakarta Timur berdasarkan luas wilayah 3.760,6 ha. Selanjutnya berdasarkan jumlah penduduk pada tahun 2018, kebutuhan RTH adalah seluas 6.259,13 ha. Selain itu, faktor yang dianggap berpengaruh positif terhadap penambahan luas RTH di Jakarta Timur adalah fasilitas kesehatan. Berdasarkan hasil wawancara kepada akademisi maupun praktisi, aspek fisik dan lingkungan paling utama untuk dipertimbangkan dalam rencana pengembangan RTH di Jakarta Timur., Green Open Space serves in maintaining environmental stability of a city. In addition to environmental conditions, Green Open Space affects other aspects, namely social, economic and aesthetic of a city. East Jakarta as one of the capital areas has a small percentage of green spaces, not meeting the minimum acreage, therefore green space development needs to be planned strategically. This study aims to identify the level of hierarchical development of each sub-district in East Jakarta using scalogram analysis, to determine the need and adequacy status of East Jakarta's Green Space, find factors that affect the area of Green Open Space in East Jakarta with multiple regression analysis and to suggest the priority sub-districts in East Jakarta that have the potential to increase Green Open Space with the application of the Analytic Hierarchy Process. The results showed that the best development is observed in Pulo Gadung sub-district which is characterised by more villages identified as hierarchy 1 than other sub-districts, viz three villages. In addition, there is no uniformity in the hierarchical development pattern of each region. The need for green spaces based on area in East Jakarta is 3,760.6 ha, while based on population in 2018 it requires 6,259.13 ha. Moreover, a factor having a positive effect on the addition of green space is health facilities. It seems that academics and practitioners consider physical and environmental aspects as the most essential factor in considering the development of the Green Open Space in East Jakarta.
Keyword: AHP, Adequacy of Green Open Space, Regional Development, Green Open Space

Judul: Isolasi dan pemurnian bahan aktif dari mikroalga BTM 11 sebagai inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus is the cause of hepatitis C disease which has high virulence. Recent therapy using combination of ribavirin and alpha interferon has short efficiency < 80%. Thus, the discovery of new drug is needed. Antiviral drugs can be discovered through molecular target therapy by finding the inhibitor of RNA helicase that play role in viral replication. Inhibitor can be derived from chemical compound produced by microalgae. The aim of this research was to isolate the active compound from microalgae BTM 11 which had inhibitory activity against RNA helicase. Inhibitory activity was measured by releasing of phospate inorganic in colorimetric ATPase assay. Crude extract was fractionated using gel filtration chromatography with methanol in chloroform solvent. The result showed that Fraction 3 has the highest inhibitory activity which (81.205%). Phytochemical test of crude extract indicated positive flavonoids and coumarin. Thin layer chromatography (TLC) analysis with eluent chloroform: methanol gave 2 spots with Rf value of 0.8 and 0.37. Moreover, high performance liquid chromatography (HPLC) analysis showed absorption peak with the highest abundance at the retention time of 12.483 minute and 16.617 minute was 266 nm and 230 nm. According to these of phytochemical, TLC, and HPLC, inhibitor compound from BTM 11 belongs to flavonoids.
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