Judul: Analisis perilaku mahasiswa program sarjana fakultas peternakan Institut Pertanian Bogor dalam pengambilan keputusan pembelian ultra milk
Abstrak: The aims of this research are to study behavior of bachelor degree students of Faculty of Animal Science Bogor Agricultural University in decision making process to buy ultra mlk, to identify factors which are considered when buying ultra milk, to study ultra milk attributes evalutaion by students of Fapet IPB. Data were collected on April 2007 using a questionnaire.
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Judul: Analisis Pola Konsumsi Mahasiswa Terhadap Pangan Asal Ternak (Studi Kasus: Mahasiswa Program Sarjana Fakultas Ekonomi dan Manajemen Institut Pertanian Bogor Tahun Masuk 2010)
Abstrak: FEM Students have a diverse characteristic, which rise to differences in consumption decisions, one of which is the consumption of the food from livestock. This study aims to analyze the consumption pattern of the food from livestock, identify the factors that influence the demand for the food from livestock, and analyze the level of price and income elasticity of the food from livestock with the application of the Almost Ideal Demand System (AIDS) model. The results of this studies showed that the higher the students income, the lower the total expenditure of FEM students allocated to consumption of food from livestock. The largest proportion of total expenditure of FEM students is used for the consumption of chicken meat, followed by cow’s milk, eggs of chicken, and beef. The own price variable, cross-price, total expenditure, gender, residence status tends to be dominant significantly affect the proportion of food from livestock expenditure on the real level (α) of 0,10. The own price elasticity of beef, chicken meat, and eggs is inelastic while the own price elasticity of cow’s milk is elastic. Most of cross-price elasticity have negative sign, its mean that the livestock has the complementary relationship with other food from livestock. The income elasticity for chicken meat, and eggs of chicken shown the value less than one, its mean that commodities are a staple goods. The income elasticity for beef and cow’s milk shown the value more than one, its mean that commodity is considered luxury good
Keyword: Bogor Agricultural University (IPB), food from livestock, elasticity, demand, consumption patterns, Almost Ideal Demand System (AIDS) Model

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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