Purpose: This study was done to compare breast feeding rates and factors influencing feeding practice between late preterm (34≤ GA< 37) and preterm infants (GA< 34). Methods: A survey was done of 207 late preterm and 117 preterm infants in neonatal intensive care units (NICU) of 4 university hospitals in D city. Data were collected from July 2009 to June 2010 from 324 medical records in the NICU. Breast-feeding at home was checked either by telephone survey or questioning during hospital visits. Results: Rate of breast feeding for late preterm infants was significantly lower than for preterm infants. There was no significant difference in breast-feeding at home. We found differences in factors influencing breast feeding between the two groups. Factors influencing feeding for late preterm infants were type of delivery, mothers' occupation, feeding type during hospitalization, time elapse from hospital discharge, total admission days, infant's body weight at first feeding and length of NPO (nothing by mouth). Factors influencing feeding for preterm infants were birth order, maternal disease and obstetric complications, and one-minute Apgar score. Conclusion: Results of the study show low rates of breast-feeding for late preterm infants indicating a need for breast-feeding education for mothers of these infants.

Purpose: This study was done to investigate the factors that influence non-combat soldiers' suicidal ideation. Methods: The participants of survey were 302 of soldiers in Y and H city. The data were collected from Aug. 5 to 8, 2008 in H city and Oct. 25 to 30, 2009 in Y city. The instruments were the SRI (Stress Response Inventory) developed by Ko, Park, & Kim (2000), SDS (Self-Rating Depression Scale), developed by Zung (1965) and SSI (Scale for Suicidal Ideation) developed by Beck (1979). The data were analyzed using SPSS 12.0. Results: The mean score for the SRI, SDS and SSI were 15.71±19.81, 32.02±9.67 and 1.34±2.74 respectively. There were positive correlations between the SRI and SDS (r=.763), SRI and SSI (r=.583), SDS and SSI (r=.575). Stress, depression, age, and educational level accounted for 41% of the variance in suicidal ideation. Conclusion: The results of this study indicates that soldiers' suicidal ideation is related to stress, depression, age, and educational level and that there is a need to develop programs which focus on stress and depression management.

The purpose of this study was to evaluate the effects of using standardized patients on nursing competence, communication skills, and learning satisfaction in health assessment. Method: This study was a nonequivalent control group non-synchronized post-test design. Study participants were recruited from third-year nursing students at a university. The data were analyzed using the SPSS/WIN 18.0 program. Results: The mean scores of nursing competence and communication skills were significantly higher in the experimental group than the control group. However, the two groups were not statistically different in learning satisfaction. Conclusion: The findings suggest that the use of standardized patients compared to the traditional method is an effective educational method for health assessment in nursing competence and communication skills. Therefore, it is necessary to develop various scenarios and apply standardized patients for health assessment. In addition, further research is required to evaluate its effects.

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Wake turbulence generated by the lead aircraft has a significant impact on the following aircraft and it is has been considered a key factor to consider whenin determining the longitudinal separation between the aircraft. ICAO classifies aircraft into four wake turbulence categories based on the maximum takeoff weight and provides the longitudinal separation minima for each category. Due to richer measured data and better understanding of physical processes, it is raised that classifying aircraft with only four wake turbulence grades is imprecise and leads to over-separation in many instances. In this regards, much research on a new method of classifying Wake Turbulence Category(Re-CAT) has been done by EURO-CONTROL, FAA, and ICAO. The main purpose of this study is to conduct a comparative analysis of the existing wake turbulence separation standards with Re-CAT in terms of departure capacity and the resulting benefits of Re-CAT using the data from the Incheon International Airport. The results show that EUROCONTROL and new ICAO standards have the greater effect on reducing wake turbulence separation, compared to the FAA RE-CAT standards. It is also concluded that Re-CAT presents different results of wake turbulence separation depending on the flight characteristics of each airport.