Judul: Pengembangan Bakso Substitusi Kerang Darah Sebagai Camilan Sumber Protein dan Zinc untuk Anak Usia Sekolah
Abstrak: Anak usia sekolah membutuhkan asupan gizi yang cukup dan memenuhi kebutuhannya untuk mendukung kegiatan belajar di sekolah. Bakso merupakan jajanan yang sehat karena mengandung protein dan kalsium yang tinggi dan bakso juga merupakan pangan yang cukup digemari di Indonesia. Tujuan penelitian ini adalah mendapatkan formula terbaik bakso daging sapi substitusi kerang darah sebagai pangan alternatif untuk anak usia sekolah. Hasil penelitian ini menunjukkan bahwa terdapat perbedaan yang signifikan pada warna, aroma, tekstur, rasa, aftertaste, keseluruhan, dan kadar zinc. Formula bakso terpilih adalah dengan substitusi kerang darah sebanyak 10% (F2). Bakso F2 memiliki kandungan protein sebesar 13,6 gram, zinc sebesar 2,28 mg/100g, dan kalsium sebesar 98,18 mg/100g. Kandungan zat gizi makro dan mineral zinc sudah memenuhi kontribusi zat gizi satu kali makan selingan terhadap AKG anak usai sekolah yaitu usia 7-9 tahun dan 10-12 tahun. Bakso formulasi F2 (10:90) ini mencapai klaim sumber protein dan sumber zinc., School-aged children need adequate nutritional intake and fulfill their needs to support learning activities at school. Meatballs are a healthy snack because it contain high protein and calcium and meatballs are also a fairly popular food in Indonesia. The purpose of this study was to obtain the best formula for beef meatballs substituted with blood clams as an alternative food for school-aged children. The results of this study indicate that there are significant differences in color, aroma, texture, taste, aftertaste, overall, and zinc levels. The selected meatball formula was substituted with blood clams as much as 10% (F2). Meatball F2 contains 13.6 g protein, 2.28 mg/100g zinc, and 98.18 mg/100g calcium. The content of macronutrients and zinc minerals has fulfilled the contribution of onetime snack nutrients to the RDA for children aged 7-9 years and 10-12 years. Formulation F2(10:90) claimed as the source of protein and zinc.
Keyword: blood clam, meatball, protein, zinc

Judul: The Formulation of Chicken Nugget with Red Bean Substitution (Phaseolus vulgaris L.) as a Snack Source of Protein for Toddlers
Abstrak: Balita membutuhkan kecukupan zat gizi untuk mendukung proses pertumbuhan dan perkembangannya. Balita yang mengalami defisiensi protein, zat besi, dan seng memiliki risiko lebih besar menderita stunting. Nugget banyak dinikmati oleh berbagai kalangan masyarakat dan mudah dikembangkan dengan berbagai isian, seperti daging ayam dan kacang merah yang mengandung protein, zat besi, dan seng. Tujuan penelitian ini yaitu mendapatkan formula terbaik dari nugget daging ayam substitusi kacang merah sebagai pangan alternatif untuk balita. Hasil penelitian ini menunjukkan bahwa terdapat perbedaan yang signifikan pada warna, tekstur, rasa, aftertaste, keseluruhan, kadar air, kadar zat besi, dan kadar seng. Formula nugget terpilih adalah dengan substitusi kacang merah sebanyak 50% (F2). Nugget F2 memiliki kandungan protein sebesar 14,7% bb, seng sebesar 2,12 mg/100g, dan zat besi sebesar 15,85 mg/100g. Kandungan zat gizi makro dan mineral sudah memenuhi kontribusi zat gizi satu kali makan selingan terhadap AKG anak balita usia 1-3 tahun dan 4-6 tahun. Nugget F2 ini mencapai klaim tinggi protein, tinggi zat besi, dan tinggi seng., Toddlers need adequate nutrition to support the process of growth and development. Toddlers who are deficient in protein, iron, and zinc have a greater risk of suffering from stunting. Nuggets are widely enjoyed by various groups of people and easy to develop with various fillings, such as chicken and red bean which contain protein, iron, and zinc. The purpose of this study was to obtain the best formula for chicken nuggets substituted with red beans as an alternative food for toddlers. The results of this study indicate that there are significant differences in color, texture, taste, aftertaste, overall, and water, iron, zinc levels. The selected nugget formula was substituted with red beans as much as 50% (F2). Nugget F2 contains 14.7% wt protein, 2.12 mg/100g zinc, and 15.85 mg/100g iron. The content of macronutrients and minerals has fulfilled the contribution of one time snack nutrients to the RDA for toddler aged 1-3 years and 4-6 years. Formulation F2 claimed as the high of protein, iron, and zinc.
Keyword: nugget, protein, red bean, toddlers, zinc

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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