Judul: Tingkat Pengetahuan Pemilik Kucing di Kota Bogor terhadap Kesejahteraan Hewan dan Keterkaitannya dengan Kondisi Kesehatan serta Manajemen Pemeliharaannya.
Abstrak: Keep a pet is one of popular hobby in this society today. This research provides information the knowledge of cat owners in Bogor City about animal welfare. The data taken by using questionnaire to 50 respondents from five villages in Bogor City, from April 2014 until September 2014. The electoral wards and respondents conducted in purposive method. Respondents were classified based on income, education, age, gender, domicile (villages) and the number of cats. Cat welfare status observed based on the physical condition which includes body condition score, skin disease, wounds, limping, and worm infestation. The results of this research showed most respondents had high (62%), medium (36%), and low (2%) knowledge of animal welfare. Observations regarded the condition of overall the cat body can be said good. There were a significant relationship between knowledge with one aspect of characteristic respondents (the number of cats) and cat health management (vaccines). There is no significant relationship between knowledge with cat maintenance management.
Keyword: animal welfare, cat, knowledge

Judul: Hubungan antara tingkat pendidikan dan status ekonomi pemilik hewan peliharaan terhadap pengetahuan dan penerapan kesejahteraan hewan (animal welfare)
Abstrak: Hewan peliharaan adalah hewan yang kehidupannya untuk sebagian atau seluruhnya bergantung pada manusia untuk maksud tertentu. Memelihara hewan peliharaan (companion animal) harus memerhatikan kesejahteraan hewan. Penelitian ini bertujuan mendapatkan gambaran mengenai hubungan tingkat pendidikan dan status ekonomi pemilik hewan peliharaan dengan pengetahuan dan cara penerapan asas kesejahteraan hewan yang mereka lakukan. Data penelitian diperoleh melalui penyebaran kuisioner. Cara perolehan data dilakukan dengan cara wawancara langsung atau face to face interview bagi pengunjung di lokasi penelitian (accidental technique). Data diolah dengan metode statistika chi square untuk menguji hubungan dua variabel. Dari hasil penelitian didapatkan hubungan yang bermakna antara status ekonomi dengan perilaku responden Jakarta Utara (p value=0,040), status ekonomi dengan sikap responden Jakarta Pusat (p value=0,020), tingkat pendidikan dengan sikap responden Jakarta Selatan (p value=0,000). Tidak ada perbedaan nyata antara tingkat pendidikan dan status ekonomi dengan pengetahuan responden yang diamati dikeempat lokasi penelitian. Namun berdasarkan informasi dan pengamatan saat penelitian, responden Jakarta Utara dan responden Jakarta Barat dinilai mampu menunjukkan pengetahuan yang cukup tinggi tentang asas kesejahteraan hewan
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Animal welfare, Economic status, Education level

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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