Judul: The Willingness to Pay Analysis Against Halal Certification Steakhouse
Abstrak: Saat ini sudah banyak restoran yang menyediakan menu makanan dengan bahan dasar daging, salah satunya steakhouse. Akan tetapi masih banyak steakhouse yang belum memiliki sertifikat halal MUI. Steakhouse yang telah memiliki sertifikat halal akan memiliki harga produk yang lebih mahal jika dibandingkan dengan steakhouse yang belum memiliki sertifikat halal. Penelitian ini bertujuan untuk mengetahui nilai dan faktor yang mempengaruhi wilingness to pay konsumen Holycow! Steakhouse by Chef Afit di wilayah Jabodetabek terhadap steakhouse bersertifikat halal. Variabel yang digunakan dalam penelitian ini adalah halal awareness, halal label, religiousity, dan food quality. Penelitian ini menggunakan metode analisis Structural Equation Model (SEM) dan Contingent Valuation Method (CVM). Hasil dari penelitian ini menunjukkan bahwa variabel halal awareness, halal label, religiousity, dan food quality berpengaruh positif signifikan terhadap willingness to pay. WTP juga memberikan pengaruh positif signifikan terhadap demand on halal certfication. Berdasarkan analisis yang telah dilakukan nilai rataan WTP (EWTP) yang bersedia dibayarkan konsumen terhadap steakhouse bersertifikat halal adalah sebesar Rp15 030.
Keyword: Contingent valuation method, halal certificate, SEM-PLS, willingness to pay

Judul: Willingness to Pay Konsumen dalam Membeli Daging di Restoran All You Can Eat Bersertifikat Halal
Abstrak: Daging merupakan salah satu bahan kritis yang penting diketahui kejelasan kehalalannya. Namun, banyak restoran All you can eat (AYCE) yang menyediakan daging belum memiliki sertifikat halal. Penelitian ini dilakukan untuk menganalisis nilai dan faktor yang memengaruhi willingness to pay konsumen terhadap restoran AYCE bersertifikat halal. Objek penelitian ini adalah konsumen restoran AYCE di Jakarta. Variabel yang digunakan adalah kesadaran akan halal, pengetahuan akan sertifikat halal, pendapatan, komitmen beragama, serta jenis kelamin, status, dan pendidikan sebagai variabel kontrol. Metode analisis yang digunakan adalah analisis deskriptif, regresi logistik dan Contingent valuation methods (CVM). Responden pada penelitian ini berjumlah 103 orang yang beraktifitas di Jakarta. Hasil dari penelitian ini menunjukan bahwa nilai rataan kesediaan konsumen restoran AYCE bersertifikat halal sebesar Rp19.223. Pengetahuan tentang sertifikat halal kategori tinggi dan pendapatan kategori sedang berpengaruh signifikan tetapi bernilai negatif. Kesadaran akan halal dan komitmen beragama tidak berpengaruh signifikan.
Keyword: AYCE, CVM, halal certificate, logistic regression model, WTP

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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