Judul: Food Coping Strategy, Food Security, and Nutritional Status of Children in Fisherman Family During COVID-19 Pandemic
Abstrak: Penyebaran COVID-19 yang semakin meluas berdampak pada sektor kesehatan, sosial, dan ekonomi termasuk di komunitas nelayan yang merupakan golongan menengah ke bawah. Penelitian ini bertujuan untuk menganalisis food coping strategy, ketahanan pangan, dan status gizi anak pada keluarga nelayan saat pandemi COVID-19. Desain penelitian yang digunakan adalah desain cross sectional study dengan jumlah subjek penelitian sebanyak 61 rumah tangga nelayan. Uji analisis yang digunakan terdiri dari analisis deskriptif univariat dan analisis inferensia chi square. Hasil analisis deskriptif memperlihatkan sebagian besar tindakan food coping strategy yang dilakukan oleh keluarga nelayan termasuk kategori rendah (59%). Lebih dari separuh keluarga nelayan dapat dikategorikan menjadi keluarga rawan pangan (73,8%). Prevalensi anak yang termasuk gizi kurang yaitu 14,8% sedangkan yang termasuk katgeori gizi lebih yaitu 29,5%. Hasil analisis bivariate chi square memperlihatkan adanya hubungan yang signifikan antara pekerjaan ibu, pendapatan, pengeluaran total dengan food coping strategy. Tidak terdapat hubungan yang signifikan antara karakteristik sosial ekonomi dan ketahanan pangan. Terdapat hubungan yang signifikan antara pekerjaan ibu, pendapatan, dan pengeluaran total dengan status gizi anak. Hubungan antara food coping strategy, ketahanan pangan, dan status gizi anak tidak signifikan., The widespread of COVID-19 has an impact on the health, social, and economic sectors including in the fisherman family which is categorized as middle to lower class. This study aims to analyze food coping strategy, food security, and nutritional status of children in fisherman family during COVID-19 pandemic. The research design used a cross sectional study with number of subjects as many as 61 fisherman families. Analysis is divided into two category which is descriptive analysis and inferensia analysis that used chi square test. Result show that most of the food coping strategies carried out by fisherman's families are in the low categories (59%). More than half of fisherman family is categorized as food insecurity family (73,8%). The prevalence of children belonging to thinness is 14,8% while the percentage of overweight children are 29,5%. Results of chi square test showed a significant relationship between maternal work, income, and total expenditure with food coping strategy. There is no significant relationship between socio economic characteristic of fisherman family with food security. There is a significant relationship between maternal work, income, and total expenditure with the nutritional status of children. Relationship between food coping strategy, household food security, and nutritional status of children was not significant.
Keyword: COVID-19, Food coping strategy, Nutritional status, Fisherman

Judul: The Relationship Between Social Economic Status and Fish Consumption with Nutritional Status of Children in Sukajaya Village Pesawaran District Lampung
Abstrak: Tumbuh kembang yang cepat terjadi pada anak usia sekolah harus diiringi dengan upaya pemenuhan gizi yang tepat yang salah satunya melalui, upaya peningkataan konsumsi ikan. Penelitian ini bertujuan untuk menganalisis hubungan keadaan sosial ekonomi dan konsumsi ikan dengan status gizi anak di Desa Sukajaya. Desain penelitian ini adalah cross sectional study dengan jumlah subjek sebanyak 61 orang yang dipilih secara purposive sampling. Penelitian dilakukan pada bulan Desember sampai Januari 2021 di Desa Sukajaya, Kabupaten Pesawaran, Lampung. Hasil penelitian menunjukan tidak terdapat hubungan signifikan antara kontribusi protein ikan terhadap tingkat kecukupan energi dan protein total (p>0,05). Penelitian ini juga mengungkapkan bahwa status gizi anak tidak berhubungan dengan jumlah konsumsi ikan (p>0,05). Hal lain yang diungkapkan dalam penelitian ini adalah tidak adanya hubungan signifikan (p>0,05) antara konsumsi ikan dengan karakteristik sosial ekonomi (pendidikan ayah, pendapatan orang tua dan besar keluarga) serta antara peubah status gizi dengan karakteristik sosial ekonomi. Hubungan signifikan hanya ditunjukan antara peubah konsumsi ikan dengan pendidikan ibu (p<0,05). Kata kunci: anak usia sekolah, konsumsi ikan, status gizi, The rapid growth and development in school-age children must be accompanied with proper nutrients intake. This strategy can be achieved with the increasing of fish production and fish based food products consumption. Dealing with this, the objective of this study was to analyze the correlation between socio-economic status and fish consumption with nutritional status of children in Sukajaya Village. The design of this study was a cross sectional study that included 61 subjects selected by purposive sampling. The study was conducted from December to January 2021 in Sukajaya Village, Pesawaran District, Lampung. The result showed that there was no significant correlation between the contribution of fish protein to the level of energy adequacy and total protein (p>0.05). This study also revealed that the nutritional status of children was not related to the amount of fish consumption (p>0.05). In addition, this study also revealed, that there was no significant correlation (p>0.05) between fish consumption and socio-economic characteristics (father's education, family income and family size) and between nutritional status variables and socio-economic characteristics. A significant correlation was only showed between the fish consumption with mother's education (p<0.05). Keywords: fish consumption, nutrition status, school-aged children
Keyword: fish consumption, nutrition status, school-aged children

Judul: Penggunaan Metode Homotopi untuk Menyelesaikan Persamaan KdV (Korteweg-de Vries)
Abstrak: Natural phenomena can be explained using nonlinear mathematical models. In this paper, we studied the solution of KdV equation using the Homotopy method. The KdV equation is used for describing both surface and internal waves. One of the solutions is called a solitary wave. The use of homotopy method to solve the KdV equation required a nonlinear operator which was determined by the nonlinear form of the KdV equation itself. Based on this operator, a recursive formula was obtained to get a sequence of the KdV solution. The higher the sequence order of the sequence used, the closer to the exact solution of the KdV equation.
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