Judul: Preferensi Konsumsi Makanan Kudapan Produk Ekstrusi pada Anak Usis Sekolah
Abstrak: Penelitian ini dilatar belakangi oleh pentingnya peranan anak usia sekolah untuk pembangunan negara di masa yang akan datang. Karena itu, peningkatan kualitas baik dari segi fisik maupun mental anak usia sekolah sangatlah penting. Dan segi fisik, gizi memiliki pengaruh yang cukup besar dalam pertumbuhan dan perkembangan arak. Gizi yang seimbang akan diperoleh dari makanan yang seimbang pula. Makanan kudapan merupakan makanan selingan di antara waktu makan utama yang diberikan pada anak usia sekolah untuk mencukupi kebutuhan gizinya. Dari aneka ragam makanan kudapan, makanan kudapan produk ekstrusi (MKPE) merupakan makanan kudapan yang disukai anak usia sekolah. Padahal MKPE tidak memiliki komposisi gizi yang baik sebagai makanan kudapan yang sehat. Karena itu perlu diteliti preferensi konsumsi MKPE pada anak usia sekolah.
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Judul: Kajian Pengaruh Interverensi Makanan Kudapan Terhadap Peningkatan Kadar Glukosa Darah dan Daya Ingat Anak Sekolah
Abstrak: Penelitian sebelurnnya menunjukkan bahwa pemberian kudapan di sekolah melalui program PMI-AS, yang mengandung energi dan protein rata-rata 124 kkal dan 1,5 gram, berpengaruh nyata terhadap peningkatan kadar glukosa darah anak sekolah dasar meskipun belum menunjukkan pengaruh yang nyata terhadap daya ingatnya. Hal ini diduga karena terlalu rendah kandungan energi dan protein dari kudapan yang diberikan dan kurang sesuai rnetode yang digunakan dalam pengukuran daya ingat. Salah satu indikator biokimia dari kekurangan konsumsi energi adalah rendahnya kadar glukosa darah, sedangkan indikator dari prestasi belajar anak antara lain dapat ditentukan melalui pengukuran daya ingatnya. Secara urnurn. tujuan penelitian ini adalah untuk menganalisis pengaruh intervensi makanan kudapan terhadap kadar glukosa darah dan daya ingat anak sekolah dasar (SD). Adapun tujuan khusus penelitian ini adalah menganalisis konsumsi energi, karbohidrat, protein dan lemak anak SD, menganalisis pengaruh konsumsi makanan terhadap kadar hemoglobin anak SO, menganalisis pengaruh intervensi kudapan terhadap kadar glukosa darah anak SD, menganalisis perubahan daya ingat anak SD akibat pemberian kudapan, dan menganalisis pengaruh kadar glukosa darah terhadap daya ingat anak SD.
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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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