Judul: Evaluation of Management Program of Weekly Iron-Folic Acid Supplementation and Haemoglobin Concentration of Stunted and Non-Stunted Female Students in Cianjur Regency
Abstrak: Stunting merupakan salah satu masalah gizi kronis di Indonesia yang belum terselesaikan hingga saat ini. Kejadian stunting tidak hanya terjadi pada anak-anak tetapi juga pada remaja. Anak stunted akan cenderung tumbuh menjadi remaja atau dewasa stunted. Anemia menjadi salah satu faktor yang berkontribusi dalam pembentukan generasi stunting. Wanita anemia akan berisiko melahirkan bayi prematur, berat badan lahir rendah (BBLR), dan small-for-gestational-age (SGA). Ketiga masalah tersebut berisiko 3,2 kali menyebabkan anak tumbuh dengan masalah stunting. Selain itu, anemia juga berisiko terjadi pada individu stunting. Kondisi anemia dan stunting yang terjadi bersama-sama disebut co-occurrence anemia-stunting. Suplementasi tablet tambah darah (TTD) merupakan program penurunan kejadian stunting dengan mencegah dan memperbaiki kejadian anemia gizi besi baik pada individu stunted dan non-stunted. Salah satu sasaran dari program ini yakni remaja putri. Efek yang diharapkan dari program ini yakni adanya perbaikan konsentrasi hemoglobin. Dalam praktiknya, terdapat beberapa faktor yang dapat memengaruhi konsentrasi hemoglobin antara lain pengetahuan tentang anemia dan TTD, tingkat kepatuhan konsumsi TTD, keragaman pangan, dan manajemen dan pelaksanaan program TTD. Tujuan dari penelitian ini adalah 1) menganalisis manajemen program suplementasi TTD oleh tenaga pelaksana gizi dan guru UKS, 2) menganalisis perbedaan konsentrasi hemoglobin pada remaja putri stunted dan non-stunted di Cianjur.
Keyword: anemia, haemoglobin concentration, management, stunted, WIFA  supplementation

Judul: Food Consumption, Knowledge, Attitudes, and Practices related to Anemia and Iron-Folic Acid Supplementation on Anemia Status of Adolescent Girls
Abstrak: Adolescent girls are at high risk of anemia due to unmet nutritional needs and low compliance to the government's folate-iron supplementation program. This study investigates the differences in food consumption, knowledge, attitudes, and practices related to anemia and supplementation among high school and vocational school students. Data was collected from 52 students in Ciamis, using secondary data from Empowerment of Weekly Folate-Iron Supplementation Program in High Stunting Areas. Significant differences (p<0.05) were found in weekly consumption of vegetables and fruit. High school students had higher average frequencies of iron-rich and iron-inhibiting food consumption, although not statistically significant (p>0.05). Both groups had inadequate intake of energy, protein, vitamins A, C, B12, folate and iron. Knowledge scores were higher among high school students, but not significantly different (p=0.778). Attitude scores were almost similar and positive in both groups. Vocational school students showed better compliance with a higher average number of tablet consumptionand statistically significantly different (p=0.01) from high school students. Hemoglobin levels were higher in high school students, but not significantly different (p>0.05). No significant correlation was found between energy, protein, vitamins A, C, B12, folate, iron intake, knowledge, attitude, and the number of IFA tablets towards anemia status (p>0.05)., Adolescent girls are at high risk of anemia due to unmet nutritional needs and low compliance to the government's folate-iron supplementation program. This study investigates the differences in food consumption, knowledge, attitudes, and practices related to anemia and supplementation among high school and vocational school students. Data was collected from 52 students in Ciamis, using secondary data from Empowerment of Weekly Folate-Iron Supplementation Program in High Stunting Areas. Significant differences (p<0.05) were found in weekly consumption of vegetables and fruit. High school students had higher average frequencies of iron-rich and iron-inhibiting food consumption, although not statistically significant (p>0.05). Both groups had inadequate intake of energy, protein, vitamins A, C, B12, folate and iron. Knowledge scores were higher among high school students, but not significantly different (p=0.778). Attitude scores were almost similar and positive in both groups. Vocational school students showed better compliance with a higher average number of tablet consumptionand statistically significantly different (p=0.01) from high school students. Hemoglobin levels were higher in high school students, but not significantly different (p>0.05). No significant correlation was found between energy, protein, vitamins A, C, B12, folate, iron intake, knowledge, attitude, and the number of IFA tablets towards anemia status (p>0.05).
Keyword: Anemia, Food consumption, Practice, Supplementation, Knowledge, Adolescent girls

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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