The aims of this study were to investigate the nosocomial infection route of methicillin-resistant Staphylococcus aureus (MRSA) and explore preventative methods for this pathogen that involve blocking its dispersion. We cultured MRSA from nasal cavity swabs collected between June and July 2008 that we obtained from eight dental healthcare providers, 32 nurses and the sputum specimens of two patients from our hospital. In addition, we used VITEK 2 equipment to measure drug sensitivity, and we further performed biochemical testing and pulse-field gel electrophoresis (PFGE) to isolate MRSA colonies. The incidence of these bacteria on the nasal swabs was 25.0% from dental clinic healthcare providers, 13.6% from the internal medicine ward nurses and 30.0% from intensive care unit nurses. Moreover, MRSA was detectable in sputum specimens of ward patients. The antimicrobial agents resistance and partial PFGE types of MRSA showed a similar pattern. We suggest from these analyses that nasal cavity infection by MRSA could occur by cross contamination between healthcare providers and patients which underscores the importance of stringent MRSA management practices.

This study was conducted to improve the quantity of fatty acid in peanut oil for quality breeding program. To determine fatty acids of oleic acid and linoleic acid in F2 generation, we used near infrared reflectance spectroscopy (NIRS) with high R2 values of 0.983 and 0.991 for oleic and linoleic acids, respectively. For this experiment, two combinations with 2 mother plant( cultivar Sangpyeong and Baekseon) and 1 father plant (YGC 2) were analysed. Each cultivar Sangpyeong, Baekseon, and YGC-2 in oleic and linoleic acid have 41.6%, 58.8%, 76.9% and 44.9%, 26.2%, 5.7% respectively. Distribution of fatty acid in combination Sangpyeon/YGC-2 in oleic acid showed 38.2% to 83.5%, and in linoleic acid showed 43.2% to 6.3%. The combination of Baekseon/YGC2-2 also showed 44.6% to 81.0% in oleic acid, and 40.1% to 6.8%. This result showed the values of fatty acid in F2 generation had more wide continuous variation, compared with parents values.

To obtain some information on the change of antioxidant components of seeds during grain filling stage as affected by the sowing dates, lignan compounds were investigated according to days of flowering under different sowing dates. Sesamin and sesamolin contents showed significantly different by days of flowering and varieties. Both of sesamin and sesamolin content increased after flowering and reached highest at 40 days of flowering, but they started to decrease thereafter. Sesamin and sesamolin contents of sesame seeds changed with sowing dates. Generally, late sowing date of May 30 showed relatively higher accumulation rate of sesamin and sesamolin contents rather than other sowing dates, but overall patterns were a little different by varieties and lignan compounds. In case of variety Yangbaek, sesamin and sesamolin contents showed relatively higher at sowing date of May 30, but variety Yanghuck showed higher sesamin and sesamolin contents till 20 days of flowering when sowing date of May 30, but it showed to change that both lignan contents were relatively higher under sowing date of May 10.