Judul: Peran Kelompok Nelayan dalam Kegiatan Pariwisata terhadap Peluang Usaha dan Kerja
Abstrak: The purpose of this study was to analyze the role of fishermen in the tourism activities of the business and employment opportunities. This study also examines the relationship between the characteristics of the group members and group elements with the role of fishermen, where the research was conducted on a group cruise boat belonging to the Organization of Boat Cruise Pangandaran (OBCP) Pangandaran Village. On testing the characteristics of group members to the role of fishermen, there was a real relationship. In the test group elements with the role of fishermen, there was a real relationship unless the relationship norms/rules of the group with the group supporting service units were not real relationships. Finally, in testing the role of fishermen and businesses and employment opportunities, there was a real relationship, this was evidenced by the presence of several members of the group who has other business other than as a fisherman or a boat cruise as homestays, restaurants and stalls.
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Judul: Dampak Pengembangan Pariwisata dan Sikap Nelayan di Desa Pangandaran
Abstrak: Development of coastal tourism can give directly impact on the social and cultural life of fisherman communities and influence the attitudes of fishermen. This study intend to analyze the impact of tourism development on the social structure and cultural values as well as analyzing the attitudes of fishermen towards the tourism development. The research was conducted in Pangandaran village using survey methods. The results showed that the development of tourism impact on the social structure of fishermen namely the growth of social organization, social stratification, migration and composition of the population, as well as the livelihoods and incomes. Whereas the impact on the cultural value of fishermen include namely the waning tradition of local fishermen, fishermen lifestyle changes, and increased knowledge of fishermen. Fishermen status and income level have a real relationship with the attitude of fishermen, whereas age and education level did not have a real relationship with the attitude of fishermen
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Judul: Commissioning and Analysis Dose Distribution of Linear Accelerator FFF Elekta VersaHD Photon Mode 6 MV Using Monte Carlo Simulation
Abstrak: Commissioning model simulasi Linear Accelerator (Linac) dalam radioterapi perlu dilakukan untuk validasi keakuratan distribusi dosis. Metode yang digunakan adalah simulasi Monte Carlo menggunakan software EGSnrc, yang terdiri dari BEAMnrc untuk memodelkan Linac dan DOSXYZnrc untuk menghitung distribusi dosis pada fantom air. Penelitian ini bertujuan melakukan commissioning Linac Flattening Filter-Free (FFF) Elekta VersaHD moda foton 6 MV. Hasil commissioning menunjukkan distribusi dosis hasil simulasi memenuhi kriteria penerimaan hasil simulasi menggunakan energi awal elektron 6,9 MeV pada ukuran medan paparan 5 × 5, 10 × 10, dan 20 × 20 cm2. Dosis dan dmax meningkat seiring energi awal elektron yang makin besar. Percentage Depth Dose (PDD) mengalami penurunan dosis pada ukuran medan paparan yang lebih kecil. Profil dosis mengalami pelebaran pada ukuran medan paparan yang lebih besar. PDD Linac FFF mengalami penurunan yang lebih signifikan dibandingkan dengan PDD Linac Flattening Filter (FF). Profil dosis Linac FF dan Linac FFF menunjukkan perbedaan keseragaman nilai dosis pada daerah umbra., Commissioning a simulation model of the Linear Accelerator (Linac) in radiotherapy needs to be done to validate the dose distribution accuracy. The method used is Monte Carlo simulation using EGSnrc software, consist of BEAMnrc for modeling Linac and DOSXYZnrc for calculating dose distribution in a water phantom. This research aimed to commission the Linac Flattening Filter-Free (FFF) Elekta VersaHD 6 MV photon mode using Monte Carlo simulation. The commissioning results show that simulated dose distribution satisfied the acceptance criteria of simulation results using initial electron energy of 6,9 MeV at 5 × 5, 10 × 10, and 20 × 20 cm2 field sizes. The dose and dmax increased as the initial electron energy increased. Percentage Depth Dose (PDD) decreased at smaller field size. The dose profile widens at larger field size. PDD Linac FFF decreased more significantly than PDD Linac Flattening Filter (FF). The dose profile of Linac FF and Linac FFF shows differences in uniformity of dose values in the umbra area.
Keyword: commissioning, Elekta VersaHD, Linac FFF, Monte Carlo, photon radiation