• Korean Journal of Optics and Photonics
• /
• v.17 no.4
• /
• pp.312-316
• /
• 2006

In this study, a miniature fiber-optic radiation sensor has been developed using a water-equivalent organic scintillator for electron beam therapy dosimetry. The intensity of Cerenkov light is measured and characterized as a function of the incident angle of the electron beam from a LINAC. Also, a subtraction method using a background optical fiber without a scintillator and an optical discrimination method using optical filters are investigated to remove Cerenkov light, which could cause problems or limit the accuracy for detecting a fluorescent light signal in a fiber-optic radiation sensor.

• Korean Journal of Optics and Photonics
• /
• v.18 no.4
• /
• pp.241-245
• /
• 2007

In this study, a two-dimensional fiber-optic radiation sensor has been developed using water-equivalent organic scintillators for photon beam therapy dosimetry. Two-dimensional photon beam distributions and percent depth doses(PDD) are measured according to the energies and field sizes of the photon beam. This sensor has many advantages such as high resolution, real-time measurement and ease of calibration over conventional radiation measurement devices.

• Korean Journal of Optics and Photonics
• /
• v.21 no.1
• /
• pp.16-20
• /
• 2010

In this study, we have fabricated a fiber-optic dosimeter using an organic scintillator and a plastic optical fiber. The dosimeter measure skin dose and percentage depth dose in a build-up region for an incident high energy photon beam. The scintillating light generated in the organic sensor probe embedded in a solid water phantom is guided by 30 m plastic optical fiber to a light-measuring device such as a PMT or an electrometer. In addition, using a fiber-optic dosimeter or a GAFCHROMIC EBT film, skin dose and percentage depth dose in the build-up region are measured and compared.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.18 no.3
• /
• pp.456-464
• /
• 2012

Purpose: The purpose of this study was to identify the level of role expectation of school health teachers recognized by elementary students and nursing college students and to compare role expectations between the two groups. Methods: The participants in this study were 323 elementary school students from 2 schools and 112 nursing students from 2 universities. Data was collected by a structured self-administered questionnaire and analyzed using descriptive statistics, t-test, and ANOVA by the SPSS 19.0 program. Results: The elementary students and nursing students recognized health service and health education as the most important role expectation for school health teachers. The role expectation of nursing students was higher than those of elementary students. The elementary students' points of view for role expectation were statistically different according to their health status. Conclusion: To improve the school health teacher's role, understanding the client's expectation is necessary. In addition to the role of health service and education, counseling for elementary students should be developed.

• Journal of Korean Public Health Nursing
• /
• v.13 no.2
• /
• pp.183-201
• /
• 1999

This descriptive correlational study was conducted to identify the variables related to health promoting lifestyle of girls in High school students. 156 high school students and 88 vocational high school students who lives in Taegu city were selected by a convenience sampling method. The data were collected by self-reported questionnaires from August 24 to September 4. 1998. Pender and others' Health Promoting Lifestyle Profile. Shere et al's. Self-Efficacy scale. Wallston et al.' s Internal Health Locus of Control scale. Wares' Health self rating scale and Cohen & Hoberman's Social support scale were used. The data were analyzed by using descriptive statistics, Pearson correlation coefficient. t-test. MANOVA. ANOVA. Tukey verification and Stepwise multiple regression with SAS progrom. The results of this study were as follows : 1. The average score of health promoting lifestyle performance was 2.34(SD=.36)points by the 4 point scale. 2. The combination of self-efficacy. internal health locus of control. mather's educational level and type of school explained $41.31\%$ of the variance of health promoting lifestyle. 3. Health promoting lifestyle showed significant positive correlations with self efficacy(r=.5173. p=.001), perceived health status(r=.254, p=.001) and internal health locus of control(r=.321. p=.001). On the basis of the above findings, self-efficacy in cognitive factors. and social support in modifying factors were identified as the variables which explained the most part of the Pender's health-promotion model. Nursing strategies enhancing self-efficacy which has the most significant effect on health promoting lifestyle should be developed. Further research is required to find out the factors influencing health pormoting lifestyle of high school students.

• Journal of the Korean Society of School Health
• /
• v.25 no.1
• /
• pp.59-67
• /
• 2012

Purpose: There is little known about teachers' self-efficacy in health teachers even though over 75% of Korean health teachers have offered school health education. The purpose of this study was to examine factors related to teachers' self-efficacy in Korean health teachers. Methods: Data were collected from school nurses from 474 schools such as 236 elementary schools, 140 middle schools and 98 high schools in Seoul with the stratified random sampling method. The associations among school characteristics, health teachers' characteristics, and teachers' self-efficacy were examined by ANOVA (Anlaysis of variable). To identify the possible predictors of teachers' self-efficacy, ANCOVA (Analysis of covariance) was performed. Results: Two factors, school stage (elementary, middle or high schools) and types of school (public or private school), were significantly related to teachers' self-efficacy. Teachers' self-efficacy of health teachers in elementary schools was significantly higher than that in middle and high schools. Health teachers in private school had significantly higher teaching self-efficacy than ones in public school. Conclusion: Given the fact that health teachers in elementary and private school had higher teachers' self-efficacy, an intervention to strengthen teachers' self-efficacy of health teachers in middle and high schools as well as ones in public school is required to help children and adolescents learn good health behaviors.

• Journal of the Korean Society of School Health
• /
• v.21 no.1
• /
• pp.11-22
• /
• 2008

• Proceedings of the Korean Society of Medical Physics Conference
• /
• 1999.11a
• /
• pp.383-386
• /
• 1999

• Journal of Korean society of Dental Hygiene
• /
• v.14 no.1
• /
• pp.123-129
• /
• 2014

Objectives : The purpose of the study is to investigate the relationship between the life satisfaction of high school students and their oral health practice and to provide the right method of oral health maintenance. Methods : The subjects were 307 high school students in Chungcheongnam-do. A self-reported questionnaire was filled out from May 13 to 28, 2013. The questionnaire included life satisfaction and oral health practice. Data were analyzed by SPSS 12.0. Results : A frequent visit to dental clinic improved the quality of oral health in high school students by way of toothbrushing, use of dental hygiene devices, and diet control. Conclusions : It is very important to practice continuing oral health education in high school students by dental hygienists.

• Journal of the Korean Society of School Health
• /
• v.25 no.1
• /
• pp.14-21
• /
• 2012

Purpose: This study was to investigate the attitudes of elementary school students on health curriculum. Methods: Based on the literary considerations and advanced research, a survey was conducted on Osgood's semantic differential scales on 329 fifth and sixth grade students in 6 elementary schools located in U metropolitan city regarding the attitudes towards health curriculum. Data were analyzed using t-test and multiple regression with the SPSS/WIN 18.0 program. Results: The overall attitude average grade was 3.46 in 26 factors, slightly exceeding the standard (3 points) which showed that students had a positive attitude towards health curriculums and thought health curriculums were valuable, necessary, and important classes. For each grade, the fifth grade believed health curriculums were more interesting, new, easy, necessary and valuable classes than compared to the sixth grade, and there were no differences between gender. The variables which affected attitudes in health curriculums included good feelings for health teacher, subject health status, and satisfaction in using the school health room. Conclusion: Because the better they think of health teacher, the higher the positive attitude towards health curriculums, a strategy which can build trust between student meetings not only during class time but also through operating a school health room will be necessary.