Judul: Hubungan antara Kadar Zn, Se, dan Co pada Rambut Siswa Sekolah Dasar dengan Pendapatan Orang Tua
Abstrak: Zinc, selenium, and cobalt are an essential microelements required for the children. The quality of food consumed by the students related to their parents income. The purpose of this research was to observe the relationship between the concentration of Zn, Se, and Co in hair elementary school and their parents income. The analysis of Zn, Se, and Co has been determined by atomic absorption spectroscopy method ( Keywords : microelement, hair, AAS). The research data was processed by one way ANOVA analysis. The ranges in concentrations of Zn, Se, and Co was 111.4 to 747.8 ppm, 0.092 to 1.22 ppm, and 7.64 to 15.29 ppm, respectively. Of the elements studied Zn was found to have the highest concentration and Se the lowest. The average concentration of Zn in girl’s hair about four times (626.8 ppm) higher than boy’s hair (146.8 ppm). The highest concentration of Se was found in boy’s hair from low-income parents but in girl’s hair from high-income parents.
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Judul: Hubungan Tingkat Kecukupan Protein, Kalsium dan Zink dengan Pertumbuhan Linier Anak TK
Abstrak: The purpose of this study was to analyze the correlation between protein, calcium and zinc sufficiency level with linear growth in pre-school children (PSC). This study was conducted by applying a cross sectional study design implemented among 86 pre-school children from two favourite kindergartens in the city and regency of Bogor, the Mexindo and Aliya kindergarten. Intake of protein, calcium and zinc derived from the food consumption data collected by applying a 30 days semi-quantitative FFQ method filled by the child's mother. Data of height, weight, birth and medical history of child were also collected. The statistical analysis showed significant correlation between energy, calcium and zinc sufficiency level, father's height, maternal height, father’s education, mother’s education and family income with linear growth of pre-school children (p<0.01 and p<0.05).
Keyword: Bogor Agricultural University (IPB), zink., sufficiency level, linear growth, calcium, preschoolers

Judul: Karakteristik lompatan hidrolik terhadap pelimpah terjunan pada saluran segi empat
Abstrak: Aliran dengan kecepatan tinggi dalam kondisi superkritis yang melintasi bangunan pelimpah, sebelum bergerak lebih jauh ke arah hilir saluran dimana bilangan Froude (F) lebih besar dari satu harus diubah menjadi aliran subkritis dimana bilangan Froudenya lebih kecil dari satu. Aliran yang meninggalkan kaki pelimpah merupakan aliran yang memiliki kandungan energi yang amat berarti sehingga dapat menimbulkan pengikisan yang besar. Pengubahan bilangan Froude dari kondisi superkritis ke subkritis dimaksudkan agar terjadi perubahan kandungan energi, sehingga aliran menjadi non erosive. Agar daya erosive aliran dapat berkurang, maka biasanya pada bagian hilir dari bangunan pelimpah dibuatkan suatu bangunan peredam energi. Erosi yang terjadi di hilir bangunan pelimpah dapat disebabkan dari keberadaan bangunan pelimpah itu sendiri, maupun bangunan peredam energi yang kurang tepat. Hal ini terutama menyangkut beberapa kejadian lompatan hidrolik yang timbul pada bangunan peredam energi tersebut.. Suatu metode yang efektif untuk menjamin bahwa lompatan hidrolik selalu terjadi pada daerah yang dilindungi, adalah dengan menggunakan bangunan peredam energi yang terdiri dari beberapa tipe dengan..dst
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