Judul: Persepsi, Sikap dan Perilaku Masyarakat Terhadap Kelestarian Hutan.(Studi Kasus di Desa Cinagara dan Desa Pasir Buncir Kecamatan Caringin, Kabupaten Bogor, Jawa Barat)
Abstrak: Penelitian ini secara umum bertujuan untuk mengukur dan membandingkan tingkat persepsi, sikap dan perilaku masyarakat Model Desa Konservasi (MDK) dan non Konservasi di daerah penyangga Taman Nasional Gunung Gede Pangrango serta menganalisis faktor-faktor yang mempengaruhinya. Penelitian ini dilaksanakan pada bulan Juni-Juli 2010 dengan pemilihan responden menggunakan metode Purposive sampling. Jumlah responden yang diambil adalah 30 responden tiap desa sehingga keseluruhan berjumlah 60 responden. Penyajian secara deskriptif digunakan untuk menjelaskan tanggapan yang diberikan berdasarkan nilai persentase jumlah responden. Penentuan nilai persepsi dan sikap untuk setiap tanggapan dilakukan dengan menggunakan Metoda Likert. Untuk mengetahui peubah yang mempengaruhi persepsi dan sikap dengan analisis regresi logistik biner program SPSS 15.0 Hasil penelitan menunjukan Desa Cinagara sebesar 76,67% mempunyai persepsi tinggi (positif) dan sebesar 23,33% mempunyai persepsi sedang (diantara positif dan negatif). Pada Desa Pasir Buncir sebesar 90%.mempunyai persepsi tinggi dan 10% mempunyai persepsi sedang. Persepsi yang berbeda pada kedua desa tersebut dibarengi dengan persentase sikap yang sama yaitu kategori sikap yang positif (tinggi) sebesar 83,33% dan sisanya 16,67% mempunyai sikap sedang (netral). Walaupun persepsi dan sikap masyarakat pada kedua desa berada pada kategosi tinggi tetapi masih bersifat antroposentrik yaitu lebih kepada kepentingan pribadi masyarakat dalam memanfaatkan hutan bukan atas kesadaran pribadi masyarakat terhadap hutan, sehingga kepedulian terhadap hutan masih kurang.
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Judul: Persepsi, Motivasi dan Perilaku Masyarakat Sekitar Hutan dalam Pengelolaan Kawasan Hutan (Kasus Kawasan Hutan sekitar Desa Gunung Sari di Kecamatan Pamijahan, Kabupaten Bogor)
Abstrak: The existence of forests to local communities surrounding the forest area gives economic, ecological, and social benefits. Empowering communities is the one of the important thing to preserve forests. The study assess the perceptions, motivations and behavior in using and managing forests. The method has been used was a structured interview (questionnaire) by taking a purposive sampling respondents, observation and literary study. The level of public perception for the existence of forest in the village of Gunung Sari is relatively good, whereas the public perception of the value of the economic functions of forests as sources of timber and additional income for poor households. Furthermore, the biggest motivation (35.48%) to manage forests based on the theory of Maslow (1943) was due to the need of security (safety needs), while the biggest behavior motivation based on the theory of Gerungan (1967) was group motif with a percentage of 32.26%. Behavior of people who used and managed the forest have been shown by utilizing water resources well, planted of forest trees, and didn’t convert land of the forest.
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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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