Judul: Ethnobotany on Sundanese Traditional Society in Cireundeu Village, Cimahi, West Java
Abstrak: Pengungkapan pengetahuan dan kearifan lokal memiliki nilai yang sangat strategis sebagai upaya penggalian potensi dan keunggulan sumber daya hayati khususnya jenis tumbuhan yang dimiliki oleh kelompok masyarakat, seperti masyarakat adat Cireundeu di Jawa Barat. Masyarakat adat Cireundeu memiliki pengetahuan dan kearifan lokal yang berbeda dari masyarakat adat Sunda lainnya. Penelitian ini bertujuan menggali dan mendokumentasikan pengetahuan dan kearifan lokal masyarakat Adat Cireundeu dalam mengelola satuan lingkungan dan memanfaatkan sumber daya tumbuhan yang ada didalamya, serta membandingkannya dengan masyarakat umum di sekitarnya. Pengumpulan data dilakukan melalui wawancara terstruktur dan open-ended kepada lima orang informan kunci dan 40 orang informan umum menggunakan metode purposive sampling. Data keanekaragaman tanaman dikumpulkan dengan metode participative plot sampling yang melibatkan informan sebagai pemandu. Data vegetasi dianalisis menggunakan 4 ukuran plot yaitu 20x20 m untuk tingkat pohon, 10x10 m untuk tingkat tiang, 5x5 m untuk tingkat pancang, dan 2x2 m untuk tumbuhan bawah. Hasil penelitian menunjukkan masyarakat adat Cireundeu mengelola empat satuan lingkungan, yaitu Padumukan, Leuweung Baladahan, Leuweung Tutupan dan Leuweung Larangan; dan memanfaatkan 462 jenis tanaman. Tanaman tersebut dikelompokkan menjadi 12 kategori penggunaan, yang didominasi oleh tanaman hias sebanyak 138 jenis. Hasil analisis Index of Cultural Significance (ICS) yang dikorelasikan dengan Indeks Nilai Penting (INP) menunjukkan bahwa banyak jenis tanaman memiliki nilai ICS dan INP yang berbeda pada kedua kelompok masyarakat yang mencerminkan pemanfaatan tanaman dan pengelolaan lingkungan yang berbeda antara masyarakat adat dan masyarakat umum., Disclosure of local knowledge and wisdom has strategic value for exploring the potential and advantages of biological resources, especially plant species belonging to community groups such as Sundanese traditional society in Cireundeu West Java. The people of Cireundeu have the knowledge and local wisdom that are different from other Sundanese indigenous peoples. The study aimed to explore and document the knowledge and local wisdom of the Cireundeu Indigenous people in managing various environmental units and utilizing their plant resources, as well as comparing them with the general public around them. Ethnobotanical data were collected using structured and open-ended interviews with five key informants and 40 public informants conducted using the purposive sampling method. Data on plant diversity was collected using the participative plot sampling method which involved informants as guides. Vegetation data were analyzed using 4 plot sizes, 20x20 m for tree level, 10x10 m for pole level, 5x5 m for sapling level, and 2x2 m for understory plant. The results of this study indicate that the Cireundeu Indigenous people manage four environmental units, Padumukan, Leuweung Baladahan, Leuweung Tutupan, and Leuweung Larangan; and utilize 462 plant species. These plants are grouped into 12 categories of use dominated by ornamental plants as many as 138 species. The results of the Index of Cultural Significance (ICS) analysis correlated with the Important Value Index (IVI) show that many plant species have different ICS and IVI values in two community groups reflecting diverse plant uses and environmental management between indigenous and public peoples.
Keyword: culture, environmental units, local knowledge, plant resources

Judul: Pengetahuan Lokal dalam Pengelolaan Hutan (Kasus di Desa Cijagang dan Desa Sukamulya Kabupaten Cianjur Provinsi Jawa Barat)
Abstrak: Villager, living around the forest, are depending their life on natural resources. This community exploit natural resources based on their local knowledge. Local knowledge is dinamically change over time, this issue makes this subject interesting for research that potentially enrich the local knowledge of the community. This reasearch is focused on farm forest management. It would concern issues about changes in local knowledge over time and also the role of local knowedge in economic life, environment sustainability, and social interaction among the community. Local knowledge have an important role for the community in their economy, ecology, and social life. Economically, local knowledge is important to help the community in making appropriate decision in investing an economically best valued plant and deciding the right farming technology to be used. Ecologically, local knowledge is important to guide the community to sustain the environment. Socially, local knowledge is important to help the community having a healthy social life by helping each other. Therefore the existance of local knowledge among the community have an important role in fulfilling the prosperity without ignoring the sustainable environment and social relationship among the community. This reaseach was held in March to April 2008 at Cijagang and Sukamulya villages, Sub district of Cikalongkulon. It took 60 respondents, 30 of them came from Cijagang and the other 30 came from Sukamulya. The data were collected by interviewing responden, observation and study of literature. The Data processed and analyzed by method of reduction, data presentation, and taking conclusion. Local knowledge in a form of cultural theme can be elaborated in many actions and ideas. Cultural theme in a farm forest management can be realized as land preparation, seed preparation, planting, cultivation and maintenance, and harvesting. This reasearch found some changes in local knowledge at Cijagang and Sukamulya community. In a land preparation, at ancient time people used to think that ritual is a must, but nowadays ritual is not abseloutely had to be done. In a seed preparation, at ancient time seed was collected from nature and prepared using traditional tools, but nowadays seed can be found in the nursery and prepared using modern tools . In a planting, at ancient time planting season begin by the traditional forecasting (direct stars observation by the farmer), but nowadays planting season begin by the modern weather forecasting. In a maintanance, at ancient time there are some custom rule that control the dislodgement of wild animal, but nowadays the rules are often ignored. In a harvesting, at ancient time incisions were done in a certain time with a certain consideration, but nowadays it does not have to through certain consideration. Local knowledge that exist among the Cijagang and Sukamulya community have important role in economy, ecology, and social life. 6 Economically, local knowledge in a land opening (observation of the direction and velocity of the wind during the land burning) has sustain the fertility of the land and increased harvest. Ecologically, local knowledge that encourage farmer to use natural substance instead of chemical substance help the community to sustain their environment. Socially, local knowledge help
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Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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