Judul: Community Perception and Participation in Supporting  the Conservation of Betawi Cultural Village, Setu Babakan, Jakarta Selatan.
Abstrak: Perkampungan Budaya Betawi (PBB) Setu Babakan merupakan Kawasan Cagar Budaya seluas ± 289 Ha yang terletak di Srengseng Sawah, Jagakarsa, Jakarta Selatan, dan ditujukan sebagai pusat budaya Betawi. Peran masyarakat diperlukan dalam pelestarian kawasan, sehingga penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi persepsi dan partisipasi masyarakat, menganalisis peran masyarakat dalam mendukung pelestarian Kawasan Perkampungan Budaya Betawi, dan memberikan rekomendasi untuk mengoptimalkan peran masyarakat dalam mendukung pelestariannya. Metode penelitian yang digunakan adalah mixed method antara kualitatif dan kuantitatif, dengan pengolahan data uji chi-square menggunakan SPSS. Analisis uji chi-square menggambarkan adanya hubungan antara faktor lama tinggal (0,044) dengan persepsi, serta hubungan antara etnik (Asypm. Sig 0,043) dan lama tinggal (Asymp. Sig 0.003) dengan partisipasi masyarakat. Upaya pelestarian yang diusulkan yaitu dengan peningkatan pengetahuan masyarakat, peningkatan partisipasi masyarakat serta peningkatan pengelolaan kawasan., The Setu Babakan Betawi Cultural Village (PBB) is a Cultural Heritage Area with an area of ± 289 hectares located in Srengseng Sawah, Jagakarsa, South Jakarta, and is designated as a Betawi cultural center. The role of the community is needed in preserving the area, so this study aims to analyze the factors that influence community perception and participation, analyze the role of the community in supporting the preservation of the Betawi Cultural Village Area, and provide recommendations for optimizing the community's role in supporting its preservation. The research method used is a mixed method between qualitative and quantitative, by processing the chi-square test data using SPSS. The chi-square test analysis illustrates that there is a relationship between the length of stay (0.044) and perceptions, as well as the relationship between ethnicity (Asypm. Sig 0.043) and length of stay (Asymp. Sig 0.003) and community participation. The proposed conservation efforts are by increasing community knowledge, increasing community participation and improving area management.
Keyword: Cagar Budaya, Kampung Budaya Betawi Setu Babakan, Pelestarian, Pengelolaan, Uji Chi-square, Chi-square test, Cultural heritage, Management, Preservation, Setu  Babakan Betawi Cultural Village

Judul: Revitalisasi Perkampungan Budaya Betawi di Setu Babakan, Srengseng Sawah, Jakarta Selatan
Abstrak: Perkampungan Budaya Betawi is located in Setu Babakan an engineered village, Srengseng Sawah Village, South Jakarta established by the government as the site of preservation and Betawi cultural development. The purpose of this research is to evaluate the existence of physical component, non-physical and value as well as proposing a revitalization efforts based on potential and assessment landscape. The result of this research are expected to be input for the government as well as provide recommendations on model (template) of Jakarta’s revitalization. This research is done in three community (RW) (7th, 8th,9th) at Srengseng Sawah village, South Jakarta. The method that is used in the inventory/survey, Kappa statistic and assessment of historical and cultural landscape. The research show that kappa coefficients value of region shows the potential areas of conservation (0.819). Based on historical and cultural landscape assessment, the 8th community as a village embryo have the highest value in iii originality and uniqueness of the highest compared with 7th and 9th. Therefore it is recommended that develoved based on balance between phsyical character and socio-cultural value of Perkampungan Budaya Betawi instead of potensial economic activity. Revitalizing it is also recomended that development community participation, so that the efforts taken not only survived in a short time period, but can be sustainable and meet the community needs.
Keyword: Revitalization, Landscape Assessment, Cultural Landscape, Betawi Culture

Judul: The Exploration of Discrete Logarithm over Finite Field GF(3m)
Abstrak: The security of many public~key algorithms is based on the problem of finding discrete logarithms. The generalized discrete logarithm problem is the following: given a finite cyclic group G of order n, a generator a of G, and an element fl E G, find the integer x, 0 ~ x ~ n - 1, such that 0: = fl. Algorithm for discrete logarithm problem focused on Menezes et al. (1997) that consist of exhaustive search algorithm, the baby-step giant-step algorithm, Pollard's rho algorithm, Pohlig-Hellman algorithm, and index-calculus algorithm. These algorithms are explorated to be used in discrete logarithm problem over finite field GF(3m ). The exploration also produces some algorithms, i.e. naif negative algorithm, baby-step mother-step algorithm, baby-step mother free-step algorithm, and baby-step free-step algorithm. All algorithms implemented using Maple 11. The Pohlig-Hellman and baby-step giant-step algorithms are efficient enough to be used in discrete logarithm problem over finite field GF(3m ) for m < 20.
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