Judul: Pemanfaatan Tumbuhan Obat Pada Masyarakat Kampung Sekitar Kawasan KHDTK Haurbentes Jasinga Bogor
Abstrak: Area KHDTK ( Kawasan Hutan Dengan Tujuan Khusus ) Haurbentes is the forest that function as forest research. In land research forestry there are various kinds of herbs often used by community as a drug to cure diseases. With respect to such matters, then this research was conducted. The aim of this research is to identify plant species drug used of the surrounding community research KHDTK Haurbentes forest area. This research carried out in 2 town about are in Haurbentes town and Cikeusal Wirajaya village. Research is done in February to March 2014. Based on research, characteristic of community dominated by the use of medicinal herbs age 50-60 years, education has elementary education, and society most much use of medicinal herbs freelance. Plant species identified as much as 21 species of the family 16 that can be used by local community as an alternative medicine. This type of the disease ever suffered by the people around KHDTK Haurbentes there are 15 groups of diseases/use of medicinal plants which are exploited by the community.
Keyword: Bogor Agricultural University (IPB), medicinal plants, KHDTK Haurbentes, diseases, community

Judul: Development of Utilization of Medicinal Plants for the Community of Cibunian Village, Pamijahan District, Bogor Regency
Abstrak: Pemanfaatan tumbuhan obat tradisional untuk pemeliharaan kesehatan dan gangguan penyakit hingga saat ini masih dibutuhkan dan perlu dikembangkan. Tujuan penelitian ini mengidentifikasi pemanfaatan tumbuhan obat, cara penggunaan, pengolahan dan kearifan lokal, serta program pengembangan tumbuhan obat pada masyarakat Desa Cibunian. Kegiatan penelitian dilaksanakan pada Maret‒April 2023 di Desa Cibunian, Kecamatan Kecamatan Pamijahan, Kabupaten Bogor dengan metode observasi lapang, studi literatur, dan wawancara. Terdapat 141 spesies tumbuhan dari 55 famili yang dimanfaatkan oleh masyarakat. Famili yang dominan yaitu famili Zingiberaceae dengan 15 spesies, daun menjadi bagian tumbuhan paling banyak dimanfaatkan, habitus terbanyak yaitu herba, dan digunakan untuk sistem kekebalan tubuh merupakan pemanfaatan paling banyak dengan 54 spesies tumbuhan obat. Cara pengolahan terbanyak yaitu dengan cara direbus, dan cara penggunaan terbanyak yaitu dengan cara diminum. Kearifan lokal yang ada yaitu dodol jamu. Salah satu program pengembangan yang disarankan yaitu pembuatan produk tumbuhan obat.
Keyword: health, local knowledge, medicinal plants

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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