• Journal of Wetlands Research
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• v.18 no.1
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• pp.16-23
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• 2016

The purpose of this study is to analyze quantitatively the inundation causes by applying the prevention of performance objectives using the urban storm water runoff model XP-SWMM. The model was built by using DTM and storm sewer-network with the storm sewer and geo-data of the study area as input-data to assess the current performance of prevention. An analysis of the causes of the inundation by the frequency and the rainfall-duration. As a result, lack of pipe capacity due to flooding, as well as inundation heavier that the backwater rainfall occurs due to the rise of water level of outside. For solve the inundation damage, It is necessary to improvement pipe of capacity lack and installation of a flood control channel.

• Journal of Korean society of Dental Hygiene
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• v.12 no.5
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• pp.953-961
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• 2012

Objectives : The purpose of this study is to examine the infection control practice and performance study on knowledge of dental hygienist between their knowledge and general characteristics. Methods : The subjects in this study are 305 dental hygienists who received local in-service education on December 10, 2011 and February 28, 2012. Results : The infection prevention knowledge and performance are higher as work experience is more (p<.05), as the education level is higher and when they have undergone in-service education (p<.001). Also these are higher when they are working in the dentist at the present (p<.001). The infection prevention practice are different with respect to ages (p<.01), work experience (p<.001), and the highest level of education (p<.01). There are correlations between the infection control practices and knowledge, performance and knowledge. As the practice level is higher, it is shown that the performance is higher (r=.049, p=.01). Conclusions : It would be necessary to develop the systematic and continuous program in infection control education and to build system which makes in-service training for dental hygienists mandatory. These could improve the level of infection prevention knowledge, practice and performance of dental hygienists to prevent the exposure to infection of the people.

• The Journal of Korean Society for School & Community Health Education
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• v.12 no.3
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• pp.1-15
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• 2011

Objectives: We describe the development of a smoking and drinking prevention program for adolescents, using intervention mapping. Methods: The study sample consisted of 1,000 high school second-grade students from 6 high schools in Seoul. The PRECEDE model was applied for the needs assessment. We carried out a social diagnosis by assessing the factors such as the quality of life, happiness level, and satisfaction with school life; an epidemiological diagnosis on the perceived health status, stress levels, and priority of health issues; a behavioral diagnosis on the smoking and drinking rate and the intention to smoke and drink; and an educational diagnosis on knowledge, beliefs, attitudes, self-efficacy, outcome expectations, social norms and life skills. Results: The development process included a needs assessment, identifying factors that influence smoking and drinking among adolescents. Intention, knowledge, perceived norms, perceived benefit, perceived cost, perceived susceptibility, self-efficacy, and life skills were identified as determinants. Three performance objectives were formulated to describe what an individual needs to do in order to avoid smoking and drinking. Subsequently, we constructed an intervention matrix by crossing the performance objectives with the selected determinants. Each cell describes the learning objectives of the smoking and drinking prevention program. The program used methods from the transtheoretical model, such as consciousness raising, outcome expectations, self-reevaluation, self-liberation, counterconditioning, environmental reevaluation, and stimulus control. The program deals with the effects of smoking and drinking, self-improvement, decision making, understanding advertisements, communication skills, social relationships, and assertiveness. Conclusions: By using the process of intervention mapping, the program developer was able to ensure a systematical incorporation of empirical and new data and theories to guide the intervention design. Programs targeting other health-related behavior and other methods or strategies can also be developed using this intervention mapping process.

• Journal of the Earthquake Engineering Society of Korea
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• v.20 no.3
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• pp.181-190
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• 2016

The objective of this study is to apply performance-based seismic design to high-rise apartment buildings in Korean considering collapse prevention level. The possible issues during its application were studied and the suggestions were made based on the findings from the performance-based seismic design of a building with typical residential multi-unit layout. The lateral-force-resisting system of the building is ordinary shear walls system with a code exception of height limit. In order to allow the exception, the serviceability and the stability of the ordinary shear wall structure need to be evaluated to confirm that it has the equivalent performance as the one designed under the Korean Building Code 2009. The structure was evaluated whether it satisfied its performance objectives to withstand Service Level and Maximum Considered Earthquake.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.35 no.4
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• pp.258-265
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• 2024

Objectives: This study aimed to examine sex differences in the risk factors associated with generalized anxiety disorder (GAD) among Korean adolescents to provide insights for drafting more effective prevention strategies. Methods: Data from 51845 middle and high school students in the 18th Korea Youth Risk Behavior Web-based Survey were analyzed. GAD was assessed using the 7-item Generalized Anxiety Disorder tool, and factors such as grade, academic performance, economic status, living arrangements, smoking, drinking, sexual experience, and physical activity were included. The prevalence of GAD and its association with these factors were compared between male and female students using chi-square tests and logistic regression. Odds ratios were compared statistically to identify sex-specific differences. Results: GAD prevalence was higher among girls (42.1%) than boys (30.1%). Both sexes showed increased GAD risk with lower academic performance, lower economic status, smoking, drinking, and sexual experience. Boys living apart from their families had a higher GAD risk, but this was not significant for girls. Additionally, smoking and drinking were associated with a higher increase in GAD risk in girls than in boys. Conclusion: This study underscores the importance of considering sex differences in the prevention of GAD among adolescents. Tailored sex-specific interventions are crucial for effective prevention and management of GAD in Korean adolescents.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.25 no.1
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• pp.82-88
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• 2015

Objectives: This study is designed to analyze the penetration performance into ceiling materials containing asbestos of scattering prevention agents and investigate the change in penetration depth and viscosity according to the dilution rate of anti-scattering agents diluted with distilled water. Methods: Five different types of scattering prevention agents were spread on plate-type asbestos ceiling materials. The penetration depth of each coated ceiling material was measured by energy dispersive spectroscopy (EDS) analysis, based on X-ray fluorescence (XRF) results of the non-coated ceiling materials. Test equipment installed the ceiling materials and 60 minutes were collected at a flow rate of $10{\ell}/min$ at a filter of 25 mm. Results: An EDS analysis of the cross-section of ceiling materials constructed with a scattering prevention agent revealed that potassium is detected in the process of penetrating hardener solidification and this element could be an indicator for infiltration. When anti-scattering agents with different viscosities were constructed and the penetration depth was analyzed by potassium detection assessment using EDS, the depth results with viscosities of 5.0, 2.5, and 1.9 cP were 98.5, 103, and $147{\mu}m$, respectively. Penetration performance improved with decrease in viscosity. Conclusions: For asbestos ceiling materials, it is concluded that a higher dilution rate of the scattering prevention agent leads to lower viscosity, and hence a deeper penetration depth from $156{\mu}m$ to 3 mm. The asbestos anti-scattering properties according to the penetration depth will be confirmed through further study.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2001.04a
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• pp.406-413
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• 2001

The energy dissipation or damage prevention capability of structure can be greatly enhanced by employing hysteretic dampers. According to recent studies by the authors, the ratio of hysteretic damper stiffness to structural story stiffness has been identified as one of the most important parameters for characterizing the performance of this damper In this study the method for determining appropriate properties of hysteretic dampers to satisfy the given performance objectives is developed based on the concept of capacity spectrum method. The comparison with the results from inelastic time history analysis proves that the hysteretic dampers designed from the proposed method restrains the displacement well within the target displacement.

• Journal of Korea Entertainment Industry Association
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• v.13 no.4
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• pp.349-361
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• 2019

Objectives: The purpose of this study was to investigate nursing students' knowledge, awareness and performance and to identify the influencing factors on performance of standard precaution for Healthcare-associated Infection. Methods: Subjects were 334 nursing students who were 3rd and 4th years in the nursing university in Gwangju. Data were collected using questionnaires from April 24 to May 25, 2018. The collected data was analyzed by descriptive statistics, pearson's correlation coefficient and stepwise multiple regression using IBM SPSS 21.0 program. Results: Mean scores of knowledge, awareness and performance about standard precaution for Healthcare-associated Infection were 19.95±2.43, 4.71±0.37, 4.55±0.49, respectively. Statistically significant differences were shown in the performance of standard precaution related to grade(t=-3.627, p=.000) and experience of infection prevention education(t=3.239, p=.001). Significant relationships were found among knowledge(r=.201, p=.000), awareness(r=.522, p=.000) and performance of standard precaution in nursing students. The results of stepwise multiple regression indicates that awareness(β=.507, p=.000) and grade(β=.169, p=.000) and experience of infection prevention education(β=.094, p=.043) predicts 30.8% in performance of standard precaution(F=50.520, p=.000). Conclusions: to enhance performance of standard precaution for nursing students, it is necessary to develop and utilize a program that experience of infection prevention education according to the appropriate grade group and enhances awareness.

• Journal of Korean society of Dental Hygiene
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• v.20 no.4
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• pp.479-490
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• 2020

Objectives: The purpose of this study was to investigate the actual condition of bullying in the workplace by dental hygienists and to determine whether workplace bullying affects job performance. Methods: Data were collected from 308 clinical dental hygienists working in dental medical institutions located in the whole country. Frequency analysis, descriptive statistics, t-test, and ANOVA were performed using SPSS 23.0 for analysis. Results: First, the main targets of bullying in the workplace were senior dental hygienists (53.6%) and dentists (24.7%). Second, the number of turnovers was a significant influence on bullying and job performance according to general characteristics. Finally, the 'improper work environment' among the subfactors of workplace bullying had a negative effect on 'job performance' (p<0.001). Conclusions: Based on the results of the study, we reviewed the actual condition of bullying in the workplace and whether bullying in the workplace affects job performance in the workforce problem of dental hygienists. In this regard, the importance of prevention of bullying in the workplace was discussed.

• Korean Security Journal
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• no.40
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• pp.209-242
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• 2014

This study is to understand sure the primary crime prevention has been incidence as a social problem intended for parents through the analysis of the Crime Prevention Design (CPTED) CPTED element of recognize elements that target crime prevention strategy to effectively help students be and an object of the present invention is to provide a policy suggestion haryeoneunde proposed basic data required for orientation. To achieve the study objectives such as the core framework in this study IPA: Importance-Performance Analysis) also was selected. Subjects of study in 2010 Gyeongju Elementary parents name and were 203 first research group investigating the secondary school population of the region in 2014 to nomadic parents of 297 people sampled selection. Questionnaire that use by this study applies "Important-Performance Analysis : IPA" technique that Martilla & James(1977) presented and analyzed awareness for CPTED elements of strategy for student's crime prevention to elementary school pupil students' parentse. It was the first group, 0.886, 0.920, 0.895 and 2nd group 0.880, 0.906, 0.878 that reliability of (Cronbach' s ${\alpha}$) the importance, and believability of run chart was the first group, 0.880, 0.917, 0.878 and 2nd group, 0.735, 0.840, 0.830. Analysis of the data carried out frequency analysis, reliability analysis, Frequency analysis was performed, paired sample t-Test for the reliability analysis, and the technical statistical analysis of the data is. The analysis of lattice bars execution through the IPA, the importance of the primary parents elements of CPTED strategies are generally very high, but found that the variation depending on the components that Performance. This study, an important element of the strategy to eliminate the school building for students from inside and outside the criminal fears CPTED is a mechanical surveillance in the first group, organizational surveillance, and the second group is the region intensified I'll showed mechanically and organizational factors in the investigation, and request that the investment is urgently important element is also execution low, crime prevention personnel security higher importance than expanding the front door. The analysis result of this study expects that basic data can be used in policy direction presentation that examines closely CPTED elements of strategy for crime prevention of students and applies CPTED's component effectively at elementary school hereafter.