Judul: Knowledge, Attitudes and Practices of Integrated Health Service Cadres in the Bogor District with High and Low Prevalence of Stunting
Abstrak: Penelitian ini bertujuan menganalisis perbedaan pengetahuan, sikap, dan praktik kader posyandu di daerah stunting tinngi dan rendah. Desain penelitian yang digunakan yaitu cross sectional study dengan melibatkan 76 subjek dan dilaksanakan pada bulan November 2019 di Desa Cibubulang serta Desa Dramaga, Bogor. Sebagian besar subjek merupakan ibu rumah tangga (85,5%) paling banyak berusia antara 36-45 tahun (44,7%) dengan pendidikan terakhir yaitu SD (35,5%). Strata posyandu yang mendominasi yaitu posyandu tingkat madya (48,7%) dan umumnya pernah mendapatkan pelatihan dan/atau sosialisai terkait stunting (75%). Tidak ada perbedaan signifikan antara pengetahuan, sikap, dan praktik kader posyandu pada kedua daerah (p>0,05), juga tidak ditemukan hubungan signifikan antara pengetahuan dan sikap kader posyandu dengan karakteristik kader (p>0,05), kecuali hubungan pengetahuan dengan pendidikan kader (r = 0,258,p = 0,024). Selain itu, terdapat hubungan signifikan antara pengetahuan kader dengan pratiknya di daerah prevalensi stunting rendah (r = 0,368, p = 0,025)., The objective of this study was to analyze the differences of knowledge, attitudes, and practices of integrated health service cadres in the high and low stunting area. A cross sectional design was applied to this study. In addition, this study was involved 76 subjects and conducted in November 2019 at Cibubulang and Dramaga Village, Bogor. Most of the subjects were housewives (85,5%) with the most age between 36-45 years old (44,7%). The educational level of cadres is elementary school (35,5%). The most integrated health service level were mid-level (48,7%) and generally has been received training and socialization related to stunting (75%). There was no significant difference between knowledge, attitudes and practices of integrated health service cadres in these two areas (p> 0,05), ), except for the relationship between knowledge and cadre education (r = 0,258, p = 0,024). In addition, there was a significant relationship between cadres' knowledge and practice in areas with a low stunting prevalence (r = 0,368, p = 0,025).
Keyword: Kader Posyandu, Pengetahuan, Praktik, Sikap, Stunting

Judul: Pengetahuan, Sikap, dan Praktik Ibu Balita Stunting Usia 24−59 Bulan di Kecamatan Cibungbulang, Kabupaten Bogor
Abstrak: Stunting merupakan salah satu permasalahan gizi kronis di Indonesia yaitu kondisi kurangnya panjang atau tinggi badan balita menurut usianya yang berkaitan dengan pengetahuan, sikap, dan praktik ibu mengenai stunting. Penelitian ini bertujuan untuk mengetahui pengetahuan, sikap, dan praktik ibu mengenai stunting pada balita usia 24−59 bulan. Desain penelitian ini adalah cross sectional study yang dilaksanakan pada bulan November hingga Desember 2019 di Kecamatan Cibungbulang, Kabupaten Bogor. Subjek berjumlah 86 orang ibu yang memiliki balita stunting yang dipilih dengan metode purposive sampling. Hasil penelitian menunjukkan bahwa subjek memiliki pengetahuan dan sikap positif yang kurang mengenai stunting, yaitu 53,5% dan 66,3%. Namun, sebagian besar subjek memiliki praktik yang baik mengenai stunting (91,9%). Terdapat hubungan yang signifikan antara tingkat pendidikan ibu dengan pengetahuan ibu mengenai stunting (p=0,014). Hubungan antara pengetahuan dan sikap ibu mengenai stunting juga menunjukkan hasil yang signifikan berdasarkan uji korelasi Spaerman (p=0,000; r=0,617)., Stunting is one of chronic nutritional problems in Indonesia that is condition of the lack of length or height of toddlers according to their age related to the knowledge, attitude, and practice of mothers regarding stunting. The aim of this study is to determine the knowledge, attitude, and practice of mothers regarding stunting in toddlers aged 24−59 months. This study used a cross sectional study design which was conducted in November until December 2019 in Cibungbulang District, Bogor Regency. The subjects were 86 mothers with stunting toddlers who was selected by purposive sampling method. The results showed that the subjects had poor knowledge and positive attitude regarding stunting, i.e 53.5% and 66.3% respectively. However, most of the subjects had good practice regarding stunting (91.9%). There is a significant relationship between maternal education level and knowledge regarding stunting (p=0.014). The relationship between maternal knowledge and attitude regarding stunting also showed significant results based on the Spearman correlation test (p=0.000; r=0.617).
Keyword: attitude, knowledge, practice, stunting toddler

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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