Judul: Peran Usaha Kesehatan Sekolah (UKS) terhadap pengetahuan, sikap, dan praktik keamanan pangan jajanan anak Sekolah Dasar di Kota Bogor
Abstrak: UKS has responsibility in school food safety program. UKS in elementary school is divided into 4 Levels, that is Level 1, Level 2, Level 3, and Level 4. The purpose of this research is to evaluate the role of UKS in increasing knowledge, attitude, and practise about food safety of elementary school student in Bogor. The sample taken is 90 studentsfrom every UKS Level. The result of Mann Whitney U test shows that the knowledge about food safety of student Level 1 and Level 2 have significant differences with another Levels. The attitude and practise about food safety of student from Level 1 have significant differences with another Levels and there is no significant differencesamong students from Level 2, Level 3, and Level 4. The result of Spearman corelation test shows that there are no correlation between knowledge, attitude, and practise about food safety among Level 1’s samples, whereas in Level 2, Level 3, and Level 4 each parameter are correlated significantly. Samples that have good knowledge about UKS is 57.5 %. The conclusion is UKS have no significant role in increasing knowledge, attitude, and practise about food safety among samples.
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Judul: Hubungan antara pengetahuan gizi dengan persepsi mengenai keamanan pangan jajanan pada guru SD di Bogor
Abstrak: The general objective of this study was to investige nutritional knowledge and perception about food safety of teacher elementry school in Bogor. The research was conducted using a cross sectional study. The number of samples for each region was 23, sample was selected purposively. The percentage of nutritional knowledge level was 65.2% in rural area and 87% in urban area. The percentage of food safety knowledge level was 69.6% in rural area and 69.6% in urban area. The percentage of perception about food safety level was 78.3% in rural area and 95.7% in urban area. The result of independent sample t-test toward characteristic sample, nutritional knowledge, food safety knowledge, and perception about food safety indicate there was no difference (p>0.05) beetwen rural area and urban area, but there was a few characteristic sample which indicate there was a real difference (p<0.05) beetwen rural area and urban area.The result of correlation spearman test indicate there was no significant correlation (p>0.05) beetween characteristic samples with nutritional knowledge, except one characteristic sample that was training/meeting about nutrition indicate there was significant correlation with nutritional knowledge (p<0.05). The result of correlation spearman test indicate there was no significan correlation (p>0.05) beetwen characteristic sample with food safety knowledge. The result of correlation spearman test indicate there was no significant correlation (p>0.05) beetwen nutritional knowledge with food safety knowledge, nutritional knowledge with perception about food safety, and food safety knowledge with perception about food safety.
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Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: sifat optik, litium niobat, chemical solution deposition, kecepatan putar