Judul: Correlation between Nutritional Knowledge and Complementary Feeding Practices with Stunting in Timor Tengah Utara District
Abstrak: Stunting menjadi masalah gizi dengan prevalensi kejadian tinggi di Indonesia. Penelitian ini bertujuan menganalisis hubungan pengetahuan gizi dan praktik pemberian MP-ASI dengan kejadian stunting di Kabupaten Timor Tengah Utara. Penelitian ini menggunakan data sekunder dari penelitian Better Investment for Stunting Alleviation (BISA) 2020. Desain penelitian ini adalah cross sectional study dengan jumlah subjek sebanyak 781 orang yang dipilih dengan metode purposive sampling. Sebanyak 15,5% subjek dikategorikan severe stunting dan 19,1% subjek dikategorikan stunting. Hasil uji hubungan menunjukkan adanya hubungan signifikan antara usia subjek dan pendidikan ibu dengan stunting (p<0,05). Sebagian besar ibu subjek memiliki pengetahuan gizi yang baik (47,9%). Hasil uji hubungan menunjukkan bahwa pengetahuan gizi ibu tidak berhubungan signifikan dengan stunting (p>0,05). Sebanyak 80,9% subjek tidak memenuhi Minimum Diet Diversity (MDD), namun 85,8% subjek sudah memenuhi Minimum Meal Frequency (MMF). Terdapat 82,3% subjek yang tidak memenuhi Minimum Acceptable Diet (MAD). Hasil uji hubungan menunjukkan bahwa MDD dan MAD tidak berhubungan signifikan dengan stunting, namun MMF berhubungan signifikan dengan stunting., Stunting is a nutritional problem with a high prevalence in Indonesia. This study aims to analyze the correlation between nutritional knowledge and complementary feeding practices with the incidence of stunting in Timor Tengah Utara District. This study used secondary data from the Better Investment for Stunting Alleviation (BISA) research 2020. The design of this study was cross-sectional study with 781 subjects selected by purposive sampling method. About 15.5% of the subjects were categorized as severe stunting and 19.1% of the subjects were categorized as stunting. The results of the correlation test showed that there was a significant relationship between the subject's age and mother's education with stunting (p<0.05). Most of the subject's mothers had good nutrition knowledge (47.9%). The results of the correlation test showed that mother's nutritional knowledge was not significantly related to stunting (p>0.05). About 80.9% of the subjects did not meet the Minimum Diet Diversity (MDD), but 85.8% of the subjects met the Minimum Meal Frequency (MMF). There were 82.3% of subjects who did not meet the Minimum Acceptable Diet (MAD). The results of the correlation test showed that MDD and MAD were not significantly related to stunting, but MMF was significantly related to stunting.
Keyword: children, complementary food, nutritional knowledge, stunting

Judul: Nutritional Fulfillment of Children Under Three in Stunting Area of Kepung Public Health Center, Kediri Regency
Abstrak: Stunting merupakan masalah yang belum terpecahkan di Indonesia. Penelitian ini bertujuan untuk mengetahui pelaksanaan pemenuhan gizi batita stunting dan normal di Desa Besowo. Penelitian ini merupakan studi case control dengan 38 anak usia 19-36 bulan yang dipilih melalui total sampling dan secara purposive. Pengumpulan data dilakukan dengan mengukur antropometri contoh dan wawancara dengan ibu contoh. Berat badan lahir rendah (BBLR) (15,8%) dan panjang badan lahir pendek (26,3%) (p=0,016) ditemukan pada kelompok stunting. Tidak ada perbedaan yang signifikan pada karakteristik orang tua (p>0,05). Karakteristik sosial ekonomi kedua kelompok cenderung homogen (p>0,05). Tidak ada perbedaan signifikan riwayat konsumsi suplemen pada ibu contoh selama kehamilan antara kedua kelompok (p>0,05). Lebih banyak kelompok stunting yang mendapatkan inisiasi menyusu dini (IMD) (p=0,027). Sebagian besar riwayat pemberian ASI eksklusif tidak diberikan pada kedua kelompok (p>0,05). Konsumsi kelompok pangan daging-dagingan berbeda nyata di kedua kelompok (p=0,027). Tingkat kecukupan zat gizi konsumsi contoh (p>0,05), keragaman pangan (p>0,05) dan pengetahuan, sikap, dan perilaku gizi ibu contoh tidak berbeda nyata (p>0,05). Subjek pada kelompok stunting yang mendapat IMD sebagian besar tidak mendapatkan ASI eksklusif. Oleh karena itu, intervensi yang menekankan pada pengetahuan gizi harus ditujukan untuk mengatasi faktor-faktor yang mempengaruhi pemberian ASI eksklusif dan praktik pemberian makanan., Stunting is an unsolved problem in Indonesia. This study aims to determine the nutritional fulfillment of stunting and normal toddlers in Besowo Village. This is a case control study with 38 subjects aged 19-36 months selected through total sampling and purposively. Data was collected by measuring anthropometric and interviewing the sample mothers. Low birth weight (LBW) (15.8%) and short birth length (26.3%) (p=0.016) were found in the stunting group. There was no significant difference of parents’ characteristics (p>0.05). Socio-economic characteristics of the two groups tended to be homogeneous (p>0.05). There was no significant difference in the history of supplement consumption during pregnancy between the two groups (p>0.05). More stunting group received early initiation of breastfeeding (EIB) (p=0.027). Mostly exclusive breastfeeding was not given to both groups (p>0.05). The consumption of the flesh food was significantly different between two groups (p=0.027). The level of nutritional adequacy of subject’s consumption (p>0.05), food diversity (p>0.05) and the nutritional knowledge, attitudes and behavior of the subject’s mothers were not significantly different (p>0.05). Most of the subjects in the stunting group who received EIB did not exclusively breastfeed. Therefore, interventions emphasizing nutritional knowledge should address the factors influencing exclusive breastfeeding and feeding practices.
Keyword: Nutritional fullfillment, Stunting, Kediri, children under three

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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