Judul: Higiene Pekerja Kantin di Dalam Kampus Institut Pertanian Bogor Dramaga, Bogor
Abstrak: The aim of this study was to know the factors related with hygiene practices among food handlers at canteen in Bogor Agriculture University. Survey of KAP (knowledge, attitude, and practices) were used to know the relationship of knowledge and attitudes with their practices as its factors. Thirty nine food handlers were taken sampling randomly from sixty seven canteen in Bogor Agriculture University and become respondents for questionnaire about hygiene in handling food which is divided in to three aspect: personal hygiene, hygiene of production, and hygiene of facilities. The data were analyzed using the SPSS 16.0. A majority respondents have good knowledge (94.9%), attitude (100%), and practices (97.4%). Statistic analysis showed significant difference (p<0.05) between the relationship of knowledge, attitude, and main occupation with their practices
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Judul: Gambaran Higiene Personal Pekerja Kantin di Kampus IPB Dramaga melalui Pengujian Staphylococcus aureus
Abstrak: Personal hygiene is very important in food handling practices. Improper personal hygiene of the food handler can cause foodborne illness due to the occurrence of Staphylococcus aureus. The aim of this study was to observe the occurrence of S. aureus from hands and clothes of food handlers in canteens the Bogor Agriculture University Dramaga. Thirty nine food handlers were chosen randomly from sixty seven food handlers become respondents for questionnaire about personal hygiene in handling food and detecting S. aureus on hand and clothes. The detection of S. aureus on hands and clothes was used RODAC method and analysed for the presence of S. aureus in order to assess the levels of contamination and to establish possible relationships. A majority respondents had good practices of personal hygiene. Staphylococcus aureus was detected on 100% of hands and clothes samples of food handlers. Nevertheless, the correlation between the occurance of S. aureus on hands and clothes of food handlers was not significant statistically (P>0.05). It is necessary to have a great attention to the presence of S. aureus on hands of food handlers in the university canteen since it could be the source of pathogen cross contamination to the food that can cause foodborne illness.
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Judul: Pemampatan citra menggunakan Embedded Zerotree Wavelet
Abstrak: High quality digital images need large storage space. One solution to solve that is digital image compression techniques. This research used Embedded Zerotree Wavelet (EZW) method to compress 24-bit RGB images. EZW is very effective to quantize discrete wavelet coefficients and to generate the bit stream in order of importance. This research used several thresholds, i.e., 5, 10, 30, 50, and 70. The method is compared with JPEG and JPEG2000 compression method using Peak Signal-to-Noise Ratio (PSNR) and compression ratio as performance metrics. For JPEG compression, the image quality level is set at low, medium, high, and maximum. At threshold 10, the output quality of EZW compression approaches the low quality JPEG compression, but the compression ratio of EZW is higher (13.769 versus 5.766). Compression ratio of EZW at threshold 5 approaches the compression of medium level JPEG compression, but output quality of EZW is better than output quality JPEG (PSNR: 39.217 versus 36.537). For JPEG2000 compression, the image quality level is set at 30, 50, 80, and 100. At threshold 10, the output quality of the EZW compression approaches the output of the JPEG2000 compression at quality level 50, but the compression ratio of EZW is higher (13.679 versus 5.796). Compression ratio of EZW at threshold 5 approaches the compression of JPEG2000 at quality level 50, but output quality of EZW is better than output quality JPEG2000 (PSNR: 39,217 versus 36,289). Compression with EZW method can offer better results than the method of JPEG and JPEG2000 on condition adjacent to each other in quality of output or compression ratio.
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