Judul: Pengetahuan, Persepsi Dan Penerapan Diet Penurunan Berat Badan Pada Mahasiswa Gizi Putra
Abstrak: Tujuan penelitian ini untuk mengkaji pengetahuan, persepsi dan penerapan diet penurunan berat badan pada mahasiwa gizi putra. Desain penelitian ini menggunakan cross sectional study, subjek merupakan seluruh populasi mahasiswa putra Program Studi Ilmu Gizi Institut Pertanian Bogor yang bersedia untuk diambil datanya. Hasil penelitian menunjukan bahwa subjek memiliki status gizi dengan kategori normal sebanyak 73.3%, subjek memiliki pengetahuan mengenai diet penurunan berat badan dengan kategori sedang sebanyak 54%, subjek memiliki persepsi yang positif terhadap diet penurunan berat badan secara keseluruhan yaitu sebanyak 55.1%. Terdapat subjek yang melakukan diet penurunan berat badan sebanyak 9.1%. Uji korelasi menunjukkan bahwa terdapat hubungan yang signifikan antara pengetahuan dengan persepsi diet, Indeks Prestasi Kumulatif dengan pengetahuan, serta antara status gizi dengan praktek diet (p<0.05). Namun tidak terdapat hubungan yang signifikan antara pengetahuan diet dengan praktek diet, serta persepsi diet dengan praktek diet penurunan berat badan (p>0.05). Terdapat perbedaan pengetahuan yang signifikan antar seluruh tingkat mahasiswa (p<0.05).
Keyword: Diet, Pengetahuan, Persepsi

Judul: Pengetahuan, persepsi dan penerapan  diet penurunanan berat badan  pada mahasiswa putri
Abstrak: Tujuan penelitian adalah mengkaji pengetahuan, persepsi dan penerapan diet penurunan berat badan pada mahasiwa putri. Desain penelitian ini cross sectional study dengan subjek seluruh populasi mahasiswa putri program studi sarjana Ilmu Gizi di Institut Pertanian Bogor dari tingkat 1 hingga tingkat 4 yang masih aktif dalam perkuliahan dan bersedia untuk diambil datanya. Hasil studi menunjukkan sebagian besar subjek (55.6%) memiliki pengetahuan diet dalam kategori sedang. Sebagian besar (54.8%) subjek memiliki persepsi positif terhadap diet penurunan berat badan. Sebanyak 15.6% dari 372 subjek melakukan diet penurunan berat badan, sebagian besar subjek (56.9%) melakukan diet rendah kalori, namun masih ada subjek yang melakukan diet kontroversi, yaitu 1.7% melakukan diet golongan darah, 6.9% melakukan diet Food Combining, 10.3% melakukan Obsessive Corbuzier’s Diet, dan 24.1% melakukan diet lainnya. Terdapat hubungan yang signifikan (p<0.05) antara pengetahuan diet dengan persepsi diet dan terdapat hubungan antara praktek diet dengan status gizi. Ada perbedaan nyata pada pengetahuan diet (p<0.05) antar seluruh tingkat., The aim of this study was to assess the knowledge, perceptions and implementation of weight loss diets on female undergraduate student. The cross- sectional study was applied in female undergraduate student of Nutrition Sciences at Bogor Agricultural University 1st-4th grades who are still active in the lecture and were willing to take the data. The results showed that the dietary knowledge in the majority of subject was categorized as medium (55.6%). Most subjects (54.8%) had a positive perception of weight loss diets. There were 15.6% of the 372 subjects practice in weight loss diets, most subjects (56.9%) doing a low calorie diet, but there are still subjects doing diet of controversy these are 1.7% do blood type diet, 6.9% do diet Food Combining, 10.3% do Obsessive Corbuzier's Diet, and other diets 24.1%. There is a significant relationship (p<0.05) between the perceptions of dietary and dietary knowledge and there is a relationship between dietary practices and nutritional status. There was a significant difference in knowledge of diet (p<0.05) between all grades.
Keyword: diet, pengetahuan, persepsi, praktek diet

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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