Judul: Hubungan Status gizi, Penggunaan Instagram, Pola konsumsi, dan Risiko Gangguan Makan dengan Persepsi Tubuh pada Siswi SMAN 5 Bogor.
Abstrak: Penelitian ini bertujuan untuk menganalisis hubungan status gizi, penggunaan Instagram, pola konsumsi, dan gangguan makan dengan persepsi tubuh pada siswi SMAN 5 Bogor. Desain penelitian ini adalah studi cross-sectional dan melibatkan 95 orang siswi sebagai subjek penelitian. Hasil penelitian menunjukkan bahwa subjek dengan status gizi lebih (32.1%) lebih besar dibandingkan subjek dengan status gizi kurang (4.2%). 1/3 dari subjek penelitian memiliki persepsi tubuh negatif (37.9%) dan 14.7% subjek memiliki risiko gangguan makan. Subjek yang berisiko gangguan makan cenderung berada pada subskala dieting (12.6%). Durasi waktu penggunaan Instagram subjek sebagian besar termasuk dalam kategori light users (53.7%) dan persepsi penggunaan Instagram berpengaruh pada subjek (53.7%). Pola konsumsi subjek terkait pangan nabati, buah-buahan, dan sayuran tergolong rendah, sedangkan pola konsumsi jajanan tergolong sering. Terdapat hubungan negatif signifikan antara penggunaan Instagram dengan persepsi tubuh (p=0.031, r=-0.192). Tidak terdapat hubungan yang signifikan antara status gizi, pola konsumsi, dan gangguan makan dengan persepsi tubuh.
Keyword: gangguan makan, Instagram, persepsi tubuh, remaja, status gizi

Judul: Impact of Instagram Usage Intensity on Body Dissatisfaction, Eating Behaviour, and Nutritional Status in Adolescents
Abstrak: Media sosial yang menampilkan figur tubuh ideal menyebabkan remaja khususnya perempuan membandingkan bentuk tubuhnya dengan standar sosial. Hal tersebut menyebabkan terciptanya ketidakpuasan tubuh dan mendorong remaja untuk melakukan berbagai upaya seperti diet berlebih yang dapat memengaruhi citra tubuh, perilaku makan, dan status gizi. Penelitian ini bertujuan untuk menganalisis pengaruh intensitas penggunaan instagram terhadap body dissatisfaction, perilaku makan, dan status gizi remaja kota dan kabupaten. Desain penelitian menggunakan cross sectional study yang terdiri dari 50 subjek kota dan 50 subjek kabupaten yang dipilih secara purposive sampling. Pengumpulan data dilakukan melalui wawancara dan self-administered secara luring. Sebagian besar subjek masuk kedalam kategori light user pada penggunaan instagram (69%), memiliki persepsi body dissatisfaction (57%), tergolong dalam tipe perilaku makan external eating (68%), beresiko mengalami gangguan makan (12%), dan memiliki status gizi normal (69%). Tidak terdapat pengaruh signifikan antara intensitas penggunaan instagram terhadap body dissatisfaction, perilaku makan dan status gizi (p>0,05). Terdapat pengaruh signifikan antara body dissatisfaction terhadap perilaku makan, penyimpangan perilaku makan, dan status gizi pada kedua kelompok subjek (p<0,05). Terdapat pengaruh perilaku makan terhadap status gizi pada kedua kelompok subjek (p<0,05). Dapat disimpulkan bahwa instagram tidak secara langsung mempengaruhi body dissatisfaction pada remaja, namun terdapat faktor penyebab lain yang berkontribusi lebih besar., Social media that displays ideal body figures causes adolescents (especially women) to compare their body shape with social standards. This phenomenon can cause body dissatisfaction and encourages adolescents to make various efforts, such as excessive dieting, which can affect body image, eating behavior, and nutritional status. This study aims to analyze the effect of the intensity of Instagram use on body dissatisfaction, eating behavior, and nutritional status of city and district adolescents. The research design used a cross-sectional study of 50 city subjects and 50 regency subjects selected by purposive sampling. Data was collected through interviews and offline self-administered. Most of the subjects fall into the light user category when using Instagram (69%), have a perception of body dissatisfaction (57%), belong to the external eating behavior type (68%), are at risk of experiencing eating disorders (12%), and have normal nutritional status (69%). There was no significant effect between the intensity of using Instagram on body dissatisfaction, eating behavior, and nutritional status (p>0,05). There was a significant effect of body dissatisfaction on eating behavior, deviant eating behavior, and nutritional status in both subject groups (p<0,05). There is an effect of eating behavior on nutritional status in both groups of subjects (p<0,05). The conclusion is that instagram does not directly affect adolescent body dissatisfaction, but other factors contribute more.
Keyword: adolescents, body dissatisfaction, eating behaviour, eating disorder, instagram, nutritional status, perilaku makan, penyimpangan perilaku makan, remaja, status gizi

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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