Judul: Analisis permintan daging sapi pada konsumen rumah tangga di daerah kota Bekasi Jawa Barat
Abstrak: Bahan makanan hewani merupakan salah satu komponen gizi yang berperan dalam meningkatkan derajat kesehatan dan kecerdasan. Hal ini dikarenakan protein daging hewani mengandung asam-asam amino esensial yang lebih seimbang dan mudah dicerna serta diabsorbsi lebih baik daripada protein nabati. Daging sapi merupakan salah satu produk peternakan yang telah lama dikenal sebagai bahan berprotein tinggi, dan masih dianggap mewah oleh sebagian masyarakat. Banyak faktor yang mempengaruhi permintaan daging sapi di Kota Bekasi seperti harga daging sapi, pendapatan total keluarga, distribusi bahan makanan, harga daging ayam ras, jumlah keluarga, tingkat kesukaan dan tingkat pendidikan. Penelitian ini bertujuan untuk (1) Menganalisis faktor-faktor yang mempengaruhi jumlah permintaan daging sapi pada konsumen rumah tangga di Kota Bekasi, dan (2) Mengukur besarnya elastisitas harga, elastisitas pendapatan dan elastisitas silang terhadap permintaan daging sapi.
Keyword: daging sapi, permintaan

Judul: Persepsi dan Perilaku Konsumen terhadap Pembelian Produk Daging Sapi di Kota Bekasi
Abstrak: Daging sapi merupakan sumber protein yang memiliki banyak manfaat sehingga sangat baik untuk dikonsumsi. Penelitian ini bertujuan mengidentifikasi karakteristik konsumen, menganalisis persepsi konsumen, serta mempelajari perilaku konsumen dalam membeli produk daging sapi mentah, daging sapi olahan, dan daging sapi matang di Kota Bekasi. Pengumpulan data dilakukan melalui pengisian kuesioner survei kepada 100 responden di Kota Bekasi serta dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa konsumen daging sapi di Kota Bekasi didominasi oleh perempuan, berusia 20-30 tahun dan berlatar pendidikan sarjana. Produk daging sapi sudah memiliki persepsi yang baik, artinya konsumen di Kota Bekasi sudah mengerti konsep produk daging sapi. Perilaku konsumen pada produk daging sapi mentah, olahan, dan matang memiliki frekuensi pembelian satu sampai dua kali sebulan dan satu sampai dua kali seminggu serta produk yang biasa dibeli berupa daging sapi segar dan bakso. Kandungan gizi, kebutuhan, dan kepraktisan menjadi faktor yang memengaruhi pembelian produk daging sapi.
Keyword: beef, consumer behavior, perception

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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