Judul: The Relationship Food Consumption, Parenting Practice and Food Security with The Nutritional Status of Toddlers in Cianjur
Abstrak: Nutritional problems are a major problem in developing countries like Indonesia. Nutritional problems will impact the low quality of human resources (Bappenas RI 2020). WHO data states that there are 149.2 million children under five experiencing stunting and 45.5 million children experiencing wasting (WHO et al. 2021). The Indonesian Nutrition Status Study (SSGI) stated that the prevalence of wasting was 7.1%, underweight was 17.0%, and stunting was still very high at 24.4% (Ministry of Health RI 2021). One of the provinces with a high prevalence of nutritional problems in toddlers is West Java, where wasting in West Java 5.3%, while underweight 15.0% and stunting 24.5%. In Cianjur Regency, the prevalence of wasting was 2.9%, underweight was 14.1%, and the prevalence of stunting was quite high at 33.7%. In overcoming the problem of nutrition, Indonesia launched a program known as the National Movement to Accelerate Nutrition Improvement in the framework of the First Thousand Lives (1000 HPK Movement). Presidential Regulation number 42 of 2013 states that specific and sensitive interventions are needed to tackle the problem of malnutrition (Ministry of Health Regulation 2013). Even though there have been many programs by the government, until now, nutritional problems such as being underweight, wasting and stunting still have a fairly high prevalence. Many studies have been conducted regarding the factors that influence nutritional problems, but each study in a different location will produce different results. In theory, food safety and parenting style for toddlers will affect food consumption, which will ultimately have an impact on the nutritional status of toddlers. Based on this, researchers are interested in analysing the relationship between parenting, parenting food consumption, and food security with nutritional status in toddlers which, in theory, is a factor in the occurrence of nutritional problems. This study uses some data from a study entitled "Analysis of Household Socioeconomic and Gender-Based Determinants of Food and Nutrition Security in Rural and Urban Areas: A Study in West Java, East Kalimantan, Central Sulawesi and West Nusa Tenggara". The research was conducted in May-January 2023 in Cianjur Regency, West Java Province. This research has received Ethical Approval from the Research Ethics Commission involving Humans IPB University with No.78680/IT3.KEPMSM-IPB/SK/2022. The total subjects in this study were 91 toddlers aged 24-59 months. Respondents in this study were mothers of toddlers aged 24-59 months in Cianjur Regency. The inclusion criteria in the study were that the respondents were mothers of children under five aged 24-59 months in Cianjur Regency and were willing and ready to participate in this study using Indonesian. The data used in this research is primary data. Researchers collected the data through interviews using questionnaires and direct measurements. Data on subject characteristics collected through a questionnaire included age, gender, mother's education, mother's occupation, mother's level of knowledge related to nutrition, family socio-economic status, food security, parenting style and history of infectious diseases. Data on consumption patterns, including nutrient intake and food quality, were collected through questionnaires, 24-hour recall, Individual Dietary Diversity Score (IDDS), and Household Dietary Diversity Questionnaire (HDDS). Data related to food security consisting of food insecurity was
Keyword: food security, food consumption, nutritional status, toddlers, parenting practice.

Judul: Pola Asuh Makan Dan Kesehatan Pada Rumah Tangga Yang Tahan Dan Tidak Tahan Pangan Serta Kaitannya Dengan Status Gizi Anak Balita Di Kabupaten Banjarnegara, Provinsi Jawa Tengah
Abstrak: This study aimed to analyze the impacts of parenting practices (feeding and home health practices) on underfive children’s nutritional status in different level of household food security. The study design was a cross-sectional study. The locations were purposively selected at the rural food insecure area in Banjarnegara (Kecamatan Pejawaran and Kecamatan Punggelan). Total samples of the study were 300 children and their families. Data on parenting practices were collected through personal interviews used questionnaire and nutritional status was calculated by using WHO-NCHS z-score. The study showed that 37.3 percent of households were categorized as very food-insecure, while 31.7 percent and 31.0 percent categorized as food-insecure and food-secure, respectively. The average scores of feeding and home health practices among samples were categorized as low (49.0%) and middle (73.1%) respectively, and children of group very food-insecure had the lowest score of parenting practices. There was a significantly difference among the groups in the scores of sample’s feeding practices. The study showed that about 86 percent of children were categorized as normal (BB/TB indicator), but there were 11.6 percent categorized as wasting, while 32.0 percent and 54.3 percent categorized as underweight and stunting, respectively. Statistical analyses showed significant difference in term of nutritional status. There was a significant correlation between child’s nutritional status (BB/U and TB/U) and home health practices, and between child’s nutritional status (BB/U, TB/U and BB/TB) and household food security. The study showed that child’s nutritional status (TB/U) was influenced by feeding practices, home health practices, household food security and father’s occupation.
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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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