Judul: Pemanfaatan Tumbuhan  Masyarakat Kampung Wangun I, Desa Karang Tengah, Kecamatan Babakan Madang, Kabupaten Bogor
Abstrak: Pemanfaatan tumbuhan di sekitar hutan merupakan tradisi masyarakat yang tinggal di sekitar hutan. Penelitian ini bertujuan mengidentifikasi spesies tumbuhan berguna dan mengetahui bentuk pemanfaatan tumbuhan serta aksi konservasi masyarakat Kampung Wangun I. Teknik pengumpulan data melalui studi pustaka, observasi lapang, dan wawancara 35 responden dengan metode snowball sampling. Hasil penelitian diketahui tumbuhan berguna teridentifikasi sebanyak 145 spesies dari 63 famili. Famili terbanyak yaitu famili Fabaceae 13 spesies (29.9%). Tumbuhan obat merupakan spesies terbanyak dimanfaatkan warga 85 spesies dari 45 famili. Bentuk kearifan tradisional dalam pemanfaatan tumbuhan yaitu pembuatan gula aren. Aksi konservasi warga dalam melestarikan lingkungan meliputi pemanenan madu hutan, dan budidaya tumbuhan hutan.
Keyword: action of conservation, local tradition, useful plant.

Judul: Etnobotani Masyarakat Sekitar Kawasan Cagar Alam Gunung Simpang (Studi Kasus di Desa Balegede, Kecamatan Naringgul, Kabupaten Cianjur, Jawa Barat).
Abstrak: The relationship between human and their environment, especially related to the use of plants known as ethnobotany. Plants utilization by local communities that based on local culture produced typical knowledge known as traditional knowledge. A change in lifestyle of a society can threaten the existence of traditional knowledge held by the community. This study aimed to determine the type of plants utilization and traditional knowledge in the form of plants used by communities in the surrounding area of Gunung Simpang Nature Reserve. This research was conducted at Miduana Hamlet, Balegede Village, Naringgul Subdistrict, Cianjur Regency, West Java in January, February, and May 2010. Tools and materials used in this study include questionnaires, digital camera, transparent plastic size 40x60 cm, newspapers, hanging labels, plant identification books, alcohol 70%, the data area of Gunung Simpang Nature Reserve, and demography of Balegede Village, while the object was Miduana Hamlet’s community and surrounding vegetation. Data collected include primary and secondary data. Primary data included the data of plants used by the respondents. This data was collected through semi-structured interviews on 30 respondents, direct observation, and making herbarium. Respondents selected using snowball sampling technique. The secondary data included the condition of Gunung Simpang Nature Reserve and demography of Balegede Village. Data analysis was performed by classifying the use of plants to 13 groups of usage, calculating the percentage of habitus and the percentage of parts used, and analyzes preference ranking and use value. The communities of Miduana Hamlet used 191 plant species from 69 families that classified into 13 group of usage. They used 62 species for food, 74 species for medicinal purpose, 43 species for ornament purpose, 19 species for indigenous utility, 14 species for building materials, 12 species for cattle feeding, 12 species for aromatic purpose, 9 species for firewood, 14 species for ropes, wickerwork, and crafts, 4 species for dyes, 4 species to exceed pest, 4 species for beverage, and other uses as many as 7 species. Although traditional knowledge of plants used in Miduana Hamlet already decrease, there were some people who still keep the values of traditional knowledge that was visible from the activities of plants used, conservation efforts to utilized plant, and still doing some traditions related to respect for the rice (Oryza sativa).
Keyword: 

Judul: Aplikasi Persamaan Gelombang Navier-Stokes Incompressible Untuk Memprediksi Nilai Tukar Rupiah Dengan Metode Crank- Nicolson.
Abstrak: Pergerakan nilai tukar mata uang memiliki kemiripan dengan model fisika yaitu pergerakan fluida pada aliran turbulensi. Pemberian informasi pada pasar valuta asing mengakibatkan pergerakan kurs tidak stabil dan pemberian energi pada aliran turbulensi mengakibatkan partikel fluida bergerak secara acak dengan kecepatan fluktuatif. Penelitian ini untuk memprediksi nilai tukar rupiah terhadap dollar menggunakan persamaan gelombang Navier-Stokes incompressible yang telah termodifikasi dengan parameter-parameter ekonomi. Analogi parameter ekonomi ke parameter fisika seperti produk domestik bruto (PDB) sebagai diameter pipa fluida, neraca perdagangan 2 negara sebagai bilangan reynold dan kelajuan aliran fluida sebagai perubahan nilai kurs. Solusi persamaan Navier-Stokes untuk penelitian ini diselesaikan secara numerik menggunakan metode finite difference Crank-Nicolson. Data hasil prediksi nilai kurs rupiah terhadap dollar dibandingkan dengan data kurs aktual. Hasil prediksi kurs dari persamaan Navier-Stokes dengan metode Crank-Nicolson selama 5 periode menghasilkan persentase error sebesar 0.0902%, 0.6389%, 0.3766%, 0.2721% dan 0.3146% terhadap data kurs aktual.
Keyword: kurs, metode Crank-Nicolson, fluida, Navier-Stokes