Judul: Correlation between Mother's Nutritional Knowledge, Parental Dietary Pattern, and Nutritional Status of Toddlers with Adolescent Mothers
Abstrak: Provinsi Jawa Barat merupakan salah satu provinsi di Indonesia dengan persentase pernikahan usia dini tertinggi. Tingginya angka pernikahan usia dini tersebut menyebabkan banyak terjadinya ibu dengan kehamilan pertama di usia remaja. Psikososial pada remaja putri belum siap untuk menjalankan peran menjadi seorang ibu yang dapat mendorong terjadinya pola asuh penelantaran sehingga anak kurang perhatian dan kurang asupan makanan yang bergizi seimbang. Pengetahuan gizi ibu yang kurang akan mempengaruhi praktik pemberian makanan yang tidak tepat. Asupan gizi yang baik, tidak hanya dipengaruhi oleh ketersediaan pangan yang memadai saja tetapi dipengaruhi juga oleh pola asuh yang baik. Penelitian ini bertujuan menganalisis hubungan antara pengetahuan gizi ibu, pola asuh makan dan status gizi baduta dengan ibu remaja. Desain penelitian yang digunakan, yaitu cross sectional study. Penelitian ini dilaksanakan di Kecamatan Gebang, Kabupaten Cirebon. Jumlah subjek penelitian sebanyak 44 baduta berusia 6-24 bulan. Hasil penelitian menunjukkan bahwa terdapat hubungan signifikan positif antara pengetahuan gizi ibu remaja dengan pola asuh makan (p<0,05) dan terdapat hubungan signifikan negatif antara pengetahuan gizi ibu remaja dengan status gizi baduta berdasarkan indeks BB/U dan TB/U (p<0,05)., West Java is one of provinces in Indonesia with highest percentage of early marriage. The high rate of early marriage causes many mothers to have their first pregnancies in their teens. From a psychosocial perspective, female teenagers are generally not ready to assume the role of being a mother which can lead to neglect of parenting so that the child is less attentive and less likely to feed them a balanced and nutrious diet. Lack of mother’s nutritional knowledge will affect inappropriate feeding practices. Good nutritional intake is not only influenced by adequate food availability but is also influenced by good parenting. This study aims to analyze correlation between mother’s nutritional knowledge, parental dietary pattern and nutritional status of toddlers with adolescent mothers. The research design used was a cross sectional study. The research was conducted in Gebang District, Cirebon Regency. The number of research subjects was 44 toddlers aged 6-24 months. The results showed that there was a significant positive correlation between mother’s nutritional knowledge and parental dietary pattern with adolescent mothers (p<0,05) and there was a significant negative correlation between mother’s nutritional knowledge and nutritional status of toddlers based on index of weight/age and height/age with adolescent mothers (p<0,05).
Keyword: Baduta, Ibu remaja, Pengetahuan gizi ibu, Pola asuh makan, Status gizi, Adolescent mother's, Mother's nutritional knowledge, Nutritional status, Parental dietary pattern, Toddlers

Judul: The Correlation between Mother Nutrition Knowledge and Attitudes, Parenting Styles, and The Nutritional Status of Toddlers in Daycare Participants in the city of Bogor
Abstrak: Penelitian ini bertujuan untuk menganalisis hubungan antara pengetahuan, sikap gizi ibu, pola asuh, dan status gizi balita peserta daycare di Kota Bogor. Desain penelitian cross sectional. Subjek berjumlah 40 balita yang dititipkan di daycare Kota Bogor dan penelitian dilaksanakan pada bulan September 2019 hingga Februari 2020. Hasil penelitian menunjukkan sebagian besar ibu balita memiliki pengetahuan gizi dan sikap gizi yang baik. Sebagian besar ibu memiliki pola asuh makan dan pola asuh kesehatan yang baik. Kuantitas pengasuhan ibu pada hari biasa lebih rendah dibandingkan pada hari libur. Tingkat kecukupan energi dan karbohidrat anak cenderung normal, sedangkan tingkat tingkat kecukupan protein dan lemak termasuk dalam kategori lebih. Sebagian besar balita memiliki status gizi baik. Hasil uji korelasi menunjukkan bahwa tidak terdapat hubungan signifikan antara pengetahuan gizi dan pola asuh makan maupun pola asuh kesehatan. Sikap gizi ibu tidak berhubungan dengan pola asuh makan dan pola asuh kesehatan. Hasil uji korelasi juga menunjukkan bahwa tidak terdapat hubungan antara pengetahuan dan sikap gizi, pola asuh ibu dengan status gizi balita., This study aims to analyze the correlation between mother nutrition knowledge and attitudes, parenting style, and nutritional status of toddler daycare participants in Bogor. The design of this study was cross sectional study involved 40 toddlers daycare and was conducted from September 2019 until February 2020. The results showed that most of mothers have good nutritional knowledge and attitudes. Most mothers have good feeding style and parenting in toddlers health. Most of mothers have a low quantity of parenting on weekday. Toddlers's energy and carbohydrate adequacy levels tend to be normal, while the level of nutrient adequacy of proteins and fats tends to be excess. Most toddlers had normal nutritional status. The results of the correlation test showed that there were no significant correlation between Mother Nutrition Knowledge and Attitudes with parenting styles, The results of the correlation test showed that there were no significant correlation between nutrition knowledge and attitudes, parenting styles, and nutritional status of toddlers.
Keyword: daycare, pengetahuan gizi, pola asuh, sikap gizi, status gizi, nutritional attitude, nutritional knowledge, nutritional status, parenting style

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.
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