Judul: Formulasi Nugget Ikan Tongkol dengan Penambahan Jamur Tiram dan Tepung Sukun
Abstrak: Anak usia sekolah (6 – 12 tahun) berada pada masa perkembangan sehingga membutuhkan zat gizi yang juga meningkat. Pedoman gizi seimbang untuk kelompok anak usia sekolah menyebutkan bahwa anak perlu dibiasakan mengonsumsi ikan. Anak usia sekolah juga membutuhkan asupan kalsium yang cukup untuk pertumbuhannya. Nugget banyak diminati oleh berbagai kalangan masyarakat dan mudah dikembangkan dengan berbagai isian, seperti ikan tongkol dan tepung sukun yang mengandung kalsium. Tujuan penelitian ini adalah mendapatkan formula terbaik nugget ikan tongkol dengan penambahan jamur tiram dan tepung sukun sebagai pangan alternatif untuk anak usia sekolah. Hasil penelitian menunjukkan bahwa terdapat perbedaan signfikan pada tekstur, kadar protein, kadar lemak, kadar karbohidrat, dan kadar kalsium. Formula terpilih yaitu nugget ikan tongkol tanpa penambahan jamur tiram (F1). F1 memiliki kadar air 44.63%, abu 1.84%, protein 14.91%, lemak 8.34%, karbohidrat 29.84%, dan kalsium 83.35%. Kandungan gizi tersebut memenuhi kebutuhan protein 21.20%, lemak 13.54%, karbohidrat 8.97%, dan kalsium 8.25% berdasarkan ALG kelompok umum. F1 memenuhi klaim sumber protein.
Keyword: Ikan tongkol, jamur tiram, kalsium, nugget, tepung sukun

Judul: Formulasi Cookies dengan Substitusi Tepung Tulang Ikan Gabus (Channa striata) sebagai Camilan Tinggi Kalsium bagi Anak Sekolah
Abstrak: Tujuan penelitian ini adalah untuk menghasilkan produk camilan cookies tinggi kalsium dengan substitusi tepung tulang ikan Gabus sebagai alternatif camilan bergizi bagi anak sekolah. Rancangan percobaan yang digunakan dalam penelitian ini adalah rancangan acak lengkap (RAL) satu faktor dengan dua kali pengulangan. Faktor yang diberikan terhadap formula adalah persentase substitusi tepung tulang ikan Gabus yang terbagi menjadi menjadi tiga taraf yaitu 0% (F0), 10% (F1) dan 20% (F2). Penentuan produk cookies terpilih dilakukan dengan melihat persentase penerimaan panelis terhadap formula dan tingkat kesukaan. Taraf substitusi tepung tulang ikan Gabus terhadap tepung terigu yang terpilih adalah taraf sebesar 10% (F1). Kandungan gizi Cookies terpilih per 100 gram antara lain: air 4.69 % (bb), abu 3.94 % (bk), protein 7.16% (bk), lemak 27.88% (bk), karbohidrat 56.09% (bk), kalsium 341.70 mg, energi 504 kkal. Substitusi tepung tulang ikan Gabus dapat meningkatkan kadar kalsium pada cookies.
Keyword: anak usia sekolah, cookies, kalsium, tepung tulang ikan Gabus

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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