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: Perilaku Penjaja Pangan Jajanan Anak Sekolah Tentang Gizi Dan Keamanan Pangan Di Lingkungan Sekolah Dasar Kota Dan Kabupaten Bogor
Abstrak: The purposes of this research are to identify and to analyze the view of snack hawker for students about nutrition and food safety at the elementary school environment in the Bogor city and Bogor District. The design is a cross-sectional study. The subjects of this research are 47 snack hawkers for students around the Bogor City Bogor District whom are picked by the purposive sampling method. Descriptive statistical method is used to process all the data. The subjects are dominated by man (72.3%) and about 68.1% of them are in the early-adult age (18 – 40). Most of the subjects are elementary school graduated and at the same percentage of it, subjects are not poor. Most of them has been doing this job for about 1- 5 years (44.7%) and 90% of all the subjects received nutrition and food safety information from television. As the result of it, 68.0% of the subject’s lack of knowledge about nutrition and food safety and 40.4% of them had quite good knowledge about it. There are no significant differentiation about knowledge of nutrition and food safety between the subjects which had been classified by area, accreditation status. About 48.9% of subjects lack of nutritional behavior and 53.2% of them had a quite good behavior for food safety. Subject’s behavior about nutrition and food safety had no significant differentiation which had been classified by area, accreditation status. Among all of the subjects, only 6.4% of them applying a good hygiene practice on the food and drink preparation, also on the food service. About 44.7% of subject did not apply a good hygiene practice on preparing and handling food/drink, and also 42.5% of them are not applying good pest control, sanitation of food preparation area and lack of tools. There are no significant differentiation between subjects which had been classified by area, accreditation status and seller group (p<0.05) about applying good food safety. Only 44.6% of subjects who admit using food additive, 61.9% of them get the food additive from local grocery store and 66.7% of them admit using flavoring additive. Pearson’s correlative test shows that there is a positive correlation between nutrition knowledge and nutrition behavior (r=0.645**; p<0.05) and also between food safety knowledge and food safety behavior (r=0.454; p<0.05), but there are no signifficance correlation between the nutrition and food safety knowledge/behavior with the practice and also no signifficance correlation between the access of nutrition and food safety information with the practice of nutrition and 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