Judul: Analisis Sistem Penyelenggaraan Makanan, Ketersediaan Energi Dan Zat Gizi Serta Daya Terima Menu Asrama Sekolah Smart Ekselensia Indonesia, Parung, Bogor
Abstrak: Adolescence is the second fastest growing period after the childhood. Energy & nutrients requirement tends to increase sharply in late adolescence. The purpose of this research is to examine foodservice management, energy and nutrients availability level, and menu acceptance. The research is conducted in Smart Ekselensia Indonesia schools (Senior High School), Bogor, West Java. The cross-sectional design was apllied and 56 sample was selected based on inclusion criteria i.e. fourth or fifth grade, male, and age 16—18 years old. The result show that foodservice system of SEI school is fairly good, but the menu planning of this school was not based on student’s nutrients requirement. Application of food service hygiene and sanitation guidance from Ministry of Healthy Regulation 1096/MENKES/PER/VI/2011 in SEI school was 71% while application of foodhandlers personal hygiene was 94.6%. The availibility level of Vitamin A and Iron has met (100%) its requirement. Meanwhile, the availibility level of energy and nutrients are as follows: energy 92,4%, protein 98,8%, vitamin B 72.6%, vitamin C 62.7%, calsium 81.2%, and phosphorus 97%. The avaibility level of carbohydrate and fat were repectively 53.3% and 23.8% compare to recommendation. Regarding colour, shape, aroma, taste, and consistency aspect of menu, the menu acceptability of responden was concominant with left over of food that can be used as indicator of acceptability of a menu.
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Judul: International School Dormitory Foodservice, Food Acceptance, Menu Preference, and Nutrition Intake Level (Case Study: Kharisma Bangsa High School
Abstrak: All food consumed by students lived in school dormitory must be served with adequate energy and nutritional needs. Purpose of this study was to analyze the level of preferences and acceptability of the menu, as well as level of nutritional intake of students in school dormitory foodservice. Design used to this research was cross sectional study and conducted from 13 January to 3 February 2020. Respondents were taken by purposive sampling with a total of 32 students. Kharisma Bangsa school dormitory had not implemented foodservice according to standard. Availability level of menu has not met the energy and nutritional needs of respondent. Respondent’s average intake of energy, protein, carbohydrates, iron, and vitamin C did not meet recommended dietary allowance. Level of preferences and acceptance on menu has been well received. There was a positive correlation between level of preferences and acceptance of menu., Seluruh makanan yang dikonsumsi oleh siswi yang tinggal di asrama sekolah harus dilayani dengan menu yang memenuhi kebutuhan energi dan zat gizi. Tujuan penelitian ini menganalisis tingkat kesukaan dan daya terima menu, serta tingkat kecukupan energi dan zat gizi siswi di penyelenggaraan makanan asrama sekolah. Desain penelitian yang digunakan adalah cross sectional study dan dilaksanakan pada 13 Januari hingga 3 februari 2020. Responden diambil secara purposive sampling dengan jumlah 32 siswi. Asrama Sekolah Kharisma Bangsa belum melaksanakan penyelenggaraan makanan sesuai standar. Tingkat kecukupan menu asrama belum memenuhi kebutuhan energi dan zat gizi responden. Rata-rata asupan energi, protein, karbohidrat, zat besi, dan vitamin C responden belum memenuhi kebutuhan. Tingkat kesukaan dan daya terima menu yang disediakan oleh asrama sudah diterima dengan baik. Terdapat hubungan positif antara tingkat kesukaan dan daya terima makanan.
Keyword: food acceptance level, food preferences level, nutritional intake level, school dormitory, school dormitory foodservice

Judul: Invers Drazin dari Matriks Toeplitz Singular
Abstrak: Matriks Toeplitz adalah matriks yang setiap unsur pada diagonal utama bernilai sama dan setiap unsur pada subdiagonal yang bersesuaian dengan diagonal utama juga bernilai sama. Matriks singular adalah matriks yang tidak bisa ditentukan inversnya. Akan tetapi, dapat diupayakan untuk ditentukan inversnya menggunakan invers matriks yang diperumum. Invers Drazin merupakan salah satu jenis invers matriks yang diperumum. Pada karya ilmiah ini ditentukan invers Drazin dari matriks Toeplitz singular dengan menggunakan metode Leverrier Faddeev. Kemudian, ditentukan invers Drazin dari matriks Toeplitz singular yang direpresentasikan sebagai penjumlahan segitiga bawah dan segitiga atas matriks Toeplitz berdasar pada teorema Gohberg dan Semencul., Toeplitz matrix is a matrix in with element on the main diagonal has the same value and on the subdiagonal corresponding to the main diagonal also has the same value. Singular matrix is a matrix that has no inverse. However, it can be attempted to determine the inverse using a generalized inverse matrix. Inverse Drazin is a type of generalized matrix inverse. This paper discussed the inverse Drazin for a singular Toeplitz matrix using the Leverrier Faddeev method. Then, the Drazin inverse of the singular Toeplitz matrix which is represented as a sum of products of lower and upper triangular Toeplitz matrix based on Gohberg and Semencul theorem.
Keyword: inverse Drazine, singular Toeplitz matrix