Judul: Analisis Hubungan Persepsi Diri dan Makanan, Konsumsi Pangan dan Status Gizi Remaja Usia Sekolah Menengah di Kabupaten Bogor
Abstrak: Adolescent still in process for rich their mental, emotional, social and physical maturity, thinking ability and transition to a new function in social life. One of mentally violence was thinking bad to become fat, that’s way malnutrition happening in adolescent. Negative perception in adolescent was the base of this research. The aim of this research was to analyzed correlation of body images perception, food perception, and food consumption with nutritional status in adolescent. This research used cross-sectional design, done in high schools, which were SMA Negeri 3 Bogor (city) and SMA Negeri 1 Leuwiliang (rural). Primer data collected was from March until June 2012, with 80 student’s second graduate. Data collected by filled the questioner with interview technic, collected family characteristic’s data and individual characteristic’s data. Body image perception’s data got from interviewed and images chose. Food perception’s data got from interviewed. Consumption’s data got from filled food recall 2×24 hours. Nutritional status’s data got from measured in high and weigh. Data was analyzed with Microsoft Excell and Statistical Program for Social Science (SPSS) version 18.0 for Windows. Correlation was analyzed by Pearson correlation and significant at the 0.05 level. SMA Negeri 3 Bogor’s location in the middle of city that has much public facilities and some shopping area in Bogor, had complete facility at school, allowed bringing their laptop and also smart phone. SMA Negeri 1 Leuwiliang far from public facilities and shopping area, located at rural, school has good facility but not same as SMA Negeri 3 Bogor’s facilities and not allowed to bring their gadget. Family size correlated with where they live in and 15% family size from adolescent samples that live at rural is a big family. Father’s income correlated with where they live in, father’s income from adolescent samples that live around the city is more than five million per month (37.5%), occupied as an official employee and had high education. Father’s income from adolescent samples that live around the rural is one to three million per month (47.5%), occupied as a trader and had education until high school’s graduate. Mother’s from adolescent samples 56.3% is a housewife. Mother’s who work, occupied as an official employee (30%) and occupied as a trader (11.3%) for the next. Mother’s education correlated with where they live in and mother’s education from adolescent samples that live around the city 70% was graduates from university and than mother’s education from adolescent samples that live around the rural 35% was graduates from high school. Adolescent samples who live around the city had better food habit than adolescent samples who live at rural (r=0.425, P=0.000). Adolescent samples who live around the city have better nutritional education than adolescent samples who live at rural (r=0.252, P=0.001). x Adolescent samples had a positive perception about their body image (75%). No specific answers from adolescent samples about their food perception and body shape’s ideal concept, so we can say that their food perception is positive. Adolescent samples nutrition adequacy was low, but for energy and protein adequacy was rich to 70% from energy and protein requirement. Average
Keyword: 

Judul: Correlation Between Eating Behavior and Body Image with Nutritional Status among High School Students in Bogor
Abstrak: Dewasa ini remaja mulai memerhatikan perubahan fisik yang terjadi pada mereka dan tak jarang merasa tidak puas dengan bentuk tubuh yang dimiliki. Hal tersebut dapat mendorong remaja untuk melakukan upaya-upaya tertentu untuk membuat bentuk tubuh sesuai keinginannya, seperti membatasi asupan makan dan melakukan diet berlebih yang dapat memengaruhi perilaku makan, persepsi diri terhadap citra tubuh, dan status gizi. Penelitian ini bertujuan untuk menganalisis hubungan antara perilaku makan dan body image dengan status gizi siswa SMA di Kota Bogor. Desain penelitian ini adalah cross-sectional study. Jumlah sampel yang digunakan sebanyak 114 siswa SMA di Kota Bogor. Pengumpulan data dilakukan melalui wawancara dan self-administered secara online. Sebagian besar subjek memiliki status gizi normal (81,6%), tergolong dalam tipe perilaku makan external eating (75,4%), memiliki persepsi body image negatif (51,8%), dan memiliki kebiasaan makan yang kurang baik (53,5%). Terdapat hubungan signifikan antara status gizi siswa SMA dengan perilaku makan restrained eating (p=0,018) dan body image (p=0,000). Tidak terdapat hubungan signifikan antara perilaku makan emotional eating dan external eating terhadap status gizi (p>0,05). Dapat disimpulkan bahwa perilaku makan dan persepsi body image memengaruhi status gizi siswa., These days, adolescence begine to pay attention to the physical changes that occur to them and often feel dissatisfied with their body shape. This can encourage adolescents to make certain efforts to make the body shape according to their wishes, such as limiting food intake and doing excessive diets that can affect eating behavior, body image, and nutritional status. The purpose of this study was to analyze the correlation between eating behavior and body image with nutritional status among high school students in Bogor. The design of this study was a cross-sectional study. The number of samples used in this study were 114 high school students. Data was collected through interviews and self-administrated online. Most of the subjects had normal nutritional status (81.6%), belonged to the external eating behavior (75.4%), have a negative body image perception (51.8%), had unhealthy eating habits (53.5%). There is a significant relationship between nutritional status in high school students with restrained eating (p=0.018) and body image (p=0.000). However, there is no significant relationship between emotional eating and external eating behavior on nutritional status (p>0.05). It can be concluded that eating behavior and perception of body image affect the nutritional status of students.
Keyword: adolescent, body image, nutritional status, food habits, eating behavior

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
Keyword: