Judul: Analisis Perbandingan Profitabilitas Usaha Penggemukan Sapi Madura Dan Persilangan (Madura-Limousin)(Studi Kasus: Desa Banyubunih Kecamatan Galis Kabupaten Bangkalan).
Abstrak: Sapi potong merupakan salah satu komoditi unggulan dari subsektor peternakan. Salah satu bangsa sapi potong yang mempunyai potensi besar untuk memenuhi kebutuhan daging nasional adalah Sapi Madura dan persilangan Sapi Madura dengan Limousin (Madrasin). Tujuan penelitian ini adalah menganalisis perbandingan profitabilitas pada usaha penggemukan Sapi Madura dan Sapi Madrasin. Berdasarkan pengamatan pada kelompok tani ternak Harapan Jaya I Desa Banyubunih Kecamatan Galis Kabupaten Bangkalan dengan menggunakan metode purposive sampling memperoleh hasil sebagai berikut: Rata-rata perolehan nilai profitabilitas usaha penggemukan Sapi Madura mencapai 10.06 persen, sedangkan rata-rat perolehan nilai profitabilitas usaha penggemukan Sapi Madrasin sebesar 12.63 persen. Profitabilitas usaha penggemukan sapi Madrasin lebih tinggi dibandingkan usaha penggemukan Sapi Madura.
Keyword: madrasin, potensi, profitabilitas, sapi madura

Judul: Analisis Kelayakan Usaha Penggemukan Sapi Bali di Peternakan Sapi Terpadu (PESAT) Kabupaten Kutai Timur
Abstrak: Usaha penggemukan sapi Bali di Kalimantan Timur memiliki prospek yang baik untuk dikembangkan. Namun perlu dilakukan analisa usaha yang baik untuk mengetahui prospek usahanya. Tujuan penelitian ini adalah untuk mengetahui kelayakan usaha penggemukan sapi Bali berdasarkan analisa rentabilitas usaha, Break Event Point (BEP), dan R/C rasio. Penelitian ini dilaksanakan pada bulan Februari-Maret 2014 di Peternakan Sapi Terpadu (PESAT) Kabupaten Kutai Timur, Provinsi Kalimantan Timur. Metode pengumpulan data menggunakan metode studi kasus dan data yang diperoleh dibedakan kedalam analisis ekonomi dan analisis finansial. Hasil analisis kelayakan usaha penggemukan sapi Bali di Peternakan Sapi Terpadu (PESAT) menunjukan bahwa nilai rentabilitas berdasarkan analisis ekonomi dan analisis finansial masing-masing adalah sebesar -10.21% dan 1.70%. Nilai BEP volume, BEP unit dan BEP penjualan masing-masing adalah sebesar 5 808 kg, 25.81 ekor dan Rp 259 556 547 pada analisis ekonomi sedangkan pada analisis finansial sebesar 4 850 kg, 21.55 ekor dan Rp 217 322 867. Analisa R/C rasio pada analisis ekonomi menunjukan nilai sebesar 0.89 dan pada analisis finansial adalah sebesar 1.02. Secara umum usaha penggemukan sapi Bali PT YSB dapat dikatakan belum memberikan keuntungan dikarenakan beberapa faktor. Faktor tersebut diantaranya adalah skala usaha masih tergolong kecil dan tingginya biaya produksi.
Keyword: break even point (BEP), kelayakan usaha, rentabilitas,, R/C rasio, sapi bali

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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