Judul: Analisis Pola Ketersediaan dan Konsumsi Sayur, Buah serta Kacang-kacangan Penduduk di Indonesia Tahun 2002-2011
Abstrak: This research aimed to analyze the availability and consumption pattern of vegetables, fruits and nuts in population in Indonesia 2002-2011. This research was conducted on June to December 2013. Source of the data was secondary data from National Socio-economic Survey (SUSENAS) during 2002-2011. The average of vegetables, fruits and nuts availability showed an increase during 2002-2011. However the average of vegetables and fruits consumption showed a decrease but the nuts consumption showed an increase during 2002-20111. This result showed that the vegetables consumption occurred larger in rural than the urban areas. Otherwise fruits and nuts consumption occured larger in urban than the rural areas. The vegetables and fruits sufficiency were in condition of food secured that showed by the ratio score at > 1.2 while the nuts sufficiency was in condition of food secured however fragile that showed by the ratio score at 0.8 < 1.2.
Keyword: vegetables, nuts, fruits, consumption pattern, availability pattern

Judul: Analisis konsumsi dan kebutuhan untuk konsumsi pangan di provinsi Sumatera Barat, Jawa Tengah, dan Sulawesi Tenggara tahun 2005-2015
Abstrak: Saat ini Pemerintah Indonesia sedang berupaya keras melaksanakan kegiatan percepatan diversifikasi pangan, dengan harapan pada tahun 2015 konsumsi pangan masyarakat akan mendekati pola pangan harapan (PPH) dengan skor maksimal 100. Oleh karenanya penelitian tentang konsumsi dan permintaan pangan yang dapat memberikan gambaran pencapaian diversifikasi pangan sangat penting untuk dilakukan. Penelitian ini dilakukan dengan menggunakan data Susenas modul konsumsi tahun 2005. Tujuan penelitian adalah: (1) menganalisis tingkat kecukupan energi dan protein serta keragaman konsumsi pangan berdasarkan pendekatan PPH, (2) menganalisis respon permintaan pangan terkait perubahan harga pangan, dan perubahan pendapatan, (3) melakukan estimasi kebutuhan pangan wilayah pada tahun 2008-2015 berbasis data Susenas tahun 2005. Selain Susenas, data lain yang digunakan diantaranya adalah data proyeksi penduduk hasil sensus tahun 2000, dan data pertumbuhan ekonomi. Lokasi penelitian adalah Sumatera Barat, Jawa Tengah, dan Sulawesi Tenggara yang dibedakan antara wilayah perkotaan dan perdesaan.
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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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