Judul: Analysis of Regional Food Security Situation and Stunting among Underfive Children in Garut Regency 2015-2019
Abstrak: Masalah stunting masih menjadi masalah gizi utama di Indonesia. Masalah gizi khususnya pada balita dapat disebabkan oleh banyak faktor, salah satunya adalah ketahanan pangan. Penelitian ini bertujuan menganalisis kejadian stunting pada balita, ketahanan pangan wilayah, dan kecenderungan hubungan indikator ketahanan pangan wilayah dengan kejadian stunting di Kabupaten Garut. Data yang diolah merupakan data sekunder dari dinas-dinas terkait di Kabupaten Garut selama tahun 2015-2019. Data disajikan secara deskriptif. Hasil analisis menunjukkan prevalensi stunting dalam 5 tahun terakhir menurun sebesar 1,27%, dari 7,67% pada tahun 2015 menjadi 6,4% pada tahun 2019. Rata-rata ketersediaan energi dan protein di Kabupaten Garut tahun 2015-2019 sebesar 4.383 kkal/kap/hari (183% AKE) dan 121,9 gram/kap/hari (193,5% AKP) dengan rata-rata skor PPH ketersediaan sebesar 74,3. Akses pangan secara fisik sudah baik akan tetapi, secara ekonomi dan sosial masih belum baik. Rata-rata tingkat kemiskinan di Kabupaten Garut (10,8%). Proporsi pengeluaran pangan masih lebih besar dibanding proporsi pengeluaran non pangan. Konsumsi energi dan protein di Kabupaten Garut sudah terpenuhi secara baik dengan rata-rata konsumsi energi dan protein sebesar 2.116 kkal/kap/hari (98,7% AKE) dan 56 gram/kap/hari (98,2% AKP). Walaupun demikian, konsumsi pangannya belum beragam dengan rata-rata skor PPH sebesar 72,8. Tingkat kemiskinan cenderung berhubungan negatif dengan konsumsi pangan. Konsumsi pangan juga cenderung berhubungan negatif dengan angka kejadian stunting., Stunting is one of the most big nutrition problem. Stunting, pasticularly among underfive children, is affected by many factors, one of them is food security. This study aimed to analyze stunting among underfive children, regional food security, and their correlation tendencies. Secondary data analysis was done to data from the local government offices of Garut Regency 2015-2019. Data were presented descriptively. Results of the analysis show that in the last 5 years prevalence of stunting decreased by 1.27% from 7.67% in 2015 to 6.4% in 2019. Average of energy and protein availability in Garut Regency in 2015-2019 was 4,383 kcal/cap/day (183% RDA) and 121.9 gram/cap/day (193.5% RDA) with average PPH score of availability was 74.3. Physical access for food was adequate, unlike the economic and social access. Average poverty rate in Garut Regency was 10.8%. Proportion of food expenditure was greater than the proportion of non-food expenditure. Energy and protein intake in Garut Regency was adequate, shown by average energy and protein intake of 2,116 kcal/cap/day (98.7% RDA) and 56 gram/cap/day (98.2% RDA), respectively. However, diversity of food intake was still poor with an average PPH score of 72.8. Poverty rate tends to be negatively associated with food consumption, while food consumption tends to be negatively associated with prevalence of stunting.
Keyword: akses pangan, ketahanan pangan, ketersediaan pangan, konsumsi pangan, stunting

Judul: Analysis of Regional Food Availability and Consumption with Prevalence of Stunting in Sumedang Regency 2018-2020
Abstrak: Stunting menjadi salah satu masalah gizi yang menjadi perhatian utama pemerintah di Indonesia untuk diamati dan diatasi. Masalah gizi stunting dipengaruhi oleh banyak faktor teramasuk dimensi ketahanan pangan, yaitu ketersediaan dan konsumsi pangan. Penelitian ini bertujuan menganalisis ketersediaan dan konsumsi pangan wilayah serta prevalensi stunting di Kabupaten Sumedang. Data yang diolah merupakan data sekunder dari dinas-dinas terkait di Kabupaten Sumedang pada tahun 2018-2020. Data disajikan secara deskriptif. Hasil analisis menunjukkan ketersediaan pangan dari segi kuantitas tergolong dalam kategori surplus. Kondisi konsumsi pangan wilayah dari segi kuantitas tergolong kategori baik untuk konsumsi energi dan lebih untuk konsumsi protein. Ketersediaan dan konsumsi pangan wilayah Kabupaten Sumedang masih dari segi kualitas masih belum beragam. Prevalensi stunting di Kabupaten Sumedang selama tahun 2018-2020 cenderung berfluktuatif, dan mengalami peningkatan sebesar 4,18 persen pada tahun 2020. Ketersediaan pangan wilayah dari segi kuantitas dan kualitas memiliki kecenderungan hubungan negatif dengan prevalensi stunting. Terdapat kecenderungan negatif antara konsumsi protein dan kualitas konsumsi pangan dengan prevlensi stunting. Terdapat kecenderungan hubungan positif antara konsumsi energi dan tingkat kemiskinan dengan prevalensi stunting., Stunting is one of the nutritional problems that is the main concern of the government in Indonesia to be observed and overcome. The problem of stunting nutrition is influenced by many factors including the dimension of food security, namely food availability and consumption. This study aims to analyze the availability and consumption of regional food with the prevalence of stunting in Sumedang Regency. The data processed is secondary data from related agencies in Sumedang Regency in 2018-2020. The data is presented descriptively. The results of the analysis show that food availability in terms of quantity is classified as a surplus. The condition of regional food consumption in terms of quantity is classified as a good category for energy consumption and more for protein consumption. The availability and consumption of food in Sumedang Regency is still not diverse in terms of quality. The prevalence of stunting in Sumedang Regency during 2018-2020 tends to fluctuate, and has increased by 4.18 percent. Regional food availability in terms of quantity and quality has a tendency to be negatively related to the prevalence of stunting. There is a negative trend between protein consumption and the quality of food consumption with the prevalence of stunting. There is a positive relationship between energy consumption and poverty rates and stunting prevalence.
Keyword: food availability, food consumption, stunting, Ketersediaan pangan, konsumsi pangan, stunting

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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