Judul: Desain Lanskap Wisata Pantai Kelapa Rapat (Klara), Kabupaten Pesawaran, Provinsi Lampung
Abstrak: Pantai Klara adalah daerah wisata di Provinsi Lampung yang belum dikembangkan dan dikelola secara optimal sehingga perlu ditingkatkan prasarananya. Potensi pantai ini antara lain; pasirnya yang putih, lahan kering dan pasang surut yang tidak terlalu dalam pada saat air pasang, jajaran pohon kelapa yang berfungsi sebagai penahan abrasi pantai dan peneduh bagi pengunjung, sumur air tawar yang bersih, air laut yang tidak terlalu beriak sehingga cukup aman untuk digunakan berenang dan bermain dengan alat apung dengan pemandangan pulau-pulau kecil terlihat dari pantai. Namun, kawasan di sekitar pantai sarat dengan masalah pengelolaan pesisir yang negatif seperti konversi mangrove menjadi tambak, tanah timbul, penggunaan pukat harimau, punahnya habitat terumbu karang, dan abrasi.
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Judul: Perencanaan Lanskap Pesisir Pantai Klara Sebagai Kawasan Rekreasi di Kecamatan Padang Cermin Kabupaten Pesawaran Lampung Selatan
Abstrak: Klara Beach is one of the beautiful beaches in Indonesia. This beach has potentials to be a recreation area that attractive the tourist because it still natural and protected. White sand and pure sea water are being potential from this beach, but there are some problems make Klara Beach isn’t recognized by many people. The problems are uncontrolled planning develop in this beach, many trader built their store without planning and caring the environment. Based on those problems, the coastal landscape planning study needs to be done by having objectives (1) identifying and analyzing potential and constrain (2) identifying and analyzing object and attraction of tourism (3) planning coastal landscape as a recreation area. Gold (1980) method was used in planning process with stages; preparation, data collection, analysis, synthesis, and planning. Spatial and descriptive analysis were used to analyze all data collected. Landscape plan of Klara Beach was resulted in this research which is consist of ; vegetation, circulation, activity, and facility plans. It was concluded that 1,7 Ha (11,7%) Klara Beach’s area was suitable for tourism, 1,8 Ha (12,2%) was marginally suitable, and 11,2 Ha (76,1%) was not suitable for recreation.
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Judul: Dynamical System of Hepatitis B in Three Groups with Vaccination
Abstrak: The aim of this study is to modify the hepatitis B transmission model in three age groups involving vaccination from the model conducted by Zhoe and Zhang.The method used is to analyze the stability of the fixed point and its basic reproduction number (R_0). Performed stability analysis and numerical simulation to see population dynamics. Next, a sensitivity analysis of the parameters was carried out to see its effect on R_0. From the analysis obtained two fixed points, namely non-endemic and endemic fixed points. Non-endemic fixed points are locally asymptotically stable if R_0 <1 Meanwhile, the endemic fixed point is locally asymptotically stable if R_0 > 1. Hepatitis vaccination affects the number of susceptible population, because the more successful the vaccination, the smaller the number of susceptible populations so that the smaller the population will be infected.
Keyword: Dynamic, Hepatitis B, Vaccine, Mathematical model