• Journal of the Korean Home Economics Association
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• v.42 no.3
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• pp.159-178
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• 2004

The purpose of this study was to investigate the effect of sexual messages in the media on adolescents' attitudes and behaviors toward sex. Subjects of this study consisted of 488 high school students in Cheong-ju City. The findings of this study were as follows; First, sexual messages in the media influenced-adolescents' attitudes toward sex. The more exposure to sexual messages adolescents had more liberal and permissive attitude toward sex. Secondly, sexual messages in the media also effected adolescents' behaviors toward sex, as well. The less sexual messages that they were exposed to, they displayed less sexual relations and behavior. In particular, the number of sexual materials in mass media, variety of sexual messages, and types of school were significant factors in predicting adolescents' sexual intercourse. The research suggested that sexual messages in the media definitely had an effect on adolescents' attitudes and behaviors toward sex. Therefore, it should be encouraged to take advantage of the television V chip and screening software for computers to reduce inappropriate access for adolescents.

• The Journal of Korean Society for School & Community Health Education
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• v.16 no.2
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• pp.69-87
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• 2015

Objectives: This study aimed to examine the association between depression and stress and health risk behaviors of high school students. Methods : Participants were 1134 high school student. he participants completed the following measures : Youth Risk Behavior Survey (YRBS), CES-D(Center for Epidemiological Studies Depression Scale. Results : The more stress score of male students is high, the score of the problem act on safety was significantly higher. The higher the score depression was significantly higher safety risk behavior score, violent behavior, act tries to commit suicide, smoking behavior, drug use behavior, inappropriate weight loss behavior, irregular eating habit, non-physical activity behavior. The more stress score of female students is significantly high was higher safety risk behavior score, irregular eating habit, non-physical activity behavior. The more depression score of female students is high was significantly higher safety risk behavior score, irregular eating habit, non-physical activity behavior. Conclusions: This study investigated the association between depression and stress and health risk behaviors, and helped in the development of programs to improve the health management ability of high school students.

• Korea Journal of Hospital Management
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• v.12 no.2
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• pp.1-24
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• 2007

The medical fee reimbursement denied by HIRA(Health Insurance Review Agency) amounted to about 1.2% of the total medical fee claim to HIRA for reimbursement. Most of the denials stem from the inappropriate prescriptions of medical staff violating the medical fee review standards issued by HIRA. Considering the significant impacts of the standards observance behavior on the hospitals' financial viability, we attempted to analyze the predisposition factors of medical staffs' review standards observance behavior. The TPB(Theory of Planned Behavior) was adopted as the theoretical framework of the analysis. Data were collected by administrating a survey on the concepts included in TPB model to the 187 medical staff of a tertiary care hospital. Of the 187 questionaries distributed, 150 were responded resulting 80.2% of response rate. The mean differences among the groups classified by age group, years of experience, medical specialty and gender were analysis using ANOVA. The relationships among the TPB concepts were analysed by applying the Structural Equations Modeling method. The TPB model consists of three exogenous concepts (attitude toward the behavior, subjective norm, and perceived behavioral control) and two endogenous concepts (intention and the behavior). The results of ANOVA indicated significant mean differences among the groups classified by the medical staff's age, years of experience, and medical specialty. The older and the more experienced had the higher mean of observance behavior score. The results of Structural Equations analysis showed that the subjective norm and perceived behavioral control had statistically significant influences on intention, but the influence of attitude to intention was not statistically significant. The influences of perceived behavioral control and intention on behavior were significant. Based on these results the theoretical and practical implications were discussed.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.28 no.6
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• pp.697-704
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• 2004

Bifurcation behavior of ignition and extinction of catalytic reaction is theoretically investigated in a stagnation-point flow. Considering that reaction takes place only on the catalytic surface, where conductive heat losses are allowed to occur, activation energy asymptotics with a overall one-step Arrhenius-type catalytic reaction is employed. For the cases with and without the limiting reactant consumption, the analysis provides explicit expressions, which indicate the possibility of multiple steady-state solution branches. The difference between the solutions with and without reactant consumption is in the existence of an upper solution branch, and the neglect of reactant consumption is inappropriate for determining extinction conditions. For larger values of reactant consumption, the solution response is all monotone, suggesting that multiple solutions are not possible. It is shown that bifurcation Damkohler numbers increase (decrease) with increasing of conductive heat loss (gain) on the catalytic surface, which means that smaller (larger) values of the strain rate allow the surface reaction to tolerate larger heat losses (gains). Lewis number of the limiting reactant can also significantly affect bifurcation behavior in a similar way to the effect of heat loss.

• Earthquakes and Structures
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• v.8 no.3
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• pp.699-712
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• 2015

Bracing structures with off-centre bracing system is one of the new resistant systems that frequently used in the frame with pin connections. High ductility, high-energy dissipation and decrease of base shear are advantages of this bracing system. However, beside these advantages, reconstruction and hard repair of off-centre bracing system cause inappropriate performance in the earthquake. Therefore, in this paper, the goal is investigating the behavior of this type of bracing system with ductile element (circular dissipater), in order to providing replacement of damaged member without needing repair or reconstruction of the general system. To achieve this purpose, some numerical studies have been performed using ANSYS software, a frame with off-centre bracing system and optimum eccentricity (OBS-C-O) and another frame with the same identifications without ductile element (OBS) has been created. In order to investigate precisely on the optimum placement of circular elements under monotonic load again three steal frames were modeled. Furthermore, the behavior of this general system investigated for the first time, linear and nonlinear behavior of these two steel frames compared to each other, to achieve the benefit of using the circular element in an off-centre bracing system. Eventually, the analytical results revealed that the performance of steel ring at the end of off-centre braces system illustrating as a first defensive line and buckling fuse in the off-centre bracing system.

• Journal of Korea Society of Digital Industry and Information Management
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• v.14 no.2
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• pp.91-105
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• 2018

The purpose of this study is to examine an immoral effectiveness decrease by information access monitoring between ethical dilemma and unethical information-sharing behavior. Firms are raising the demand of confidential information management and are highlighting the ethical awareness of organizational members. The individuals in organization are concerned information sharing for future-oriented social networking. To prevent their immoral behavior, Firms should consider investing the information access monitoring. This system is aiming at log verification of movement, storage and deletion on information and will reduce an ethical conflict and unethical behavior on employees. I used the structural equation methodology for this empirical study. The research model constructs the voluntary and involuntary dilemma of information sharing on the two independent-variables, the unethical information behavior and the improper networking reinforcement on the two dependent-variables and the information access monitoring the one mediating-variables. This model tests the power effect of direct path, indirect path and total path. According to the study, the two ethical dilemma of information sharing provided a high influence to the unethical sharing action and to the inappropriate social networking strengthens. However, the mediating role of information access monitoring shows the effect weakens of independent and dependent variables. Thus, the mediating variables appeared to be important for the controlling role of an unethical behavior and improper social networking. Ultimately, The firms will need to invest the information access monitoring for a compulsory ethics behavior of organizational members. In addition, this can hinder networking enhancements for future opportunistic behaviors.

• Nutrition Research and Practice
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• v.4 no.1
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• pp.51-57
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• 2010

We performed this study to examine lifestyle patterns and dietary behavior based on the level of Internet addiction of Korean adolescents. Data were collected from 853 Korean junior high school students. The level of Internet addiction was determined based on the Korean Internet addiction self-scale short form for youth, and students were classified as high-risk Internet users, potential-risk Internet users, and no risk Internet users. The associations between the students' levels of Internet addiction and lifestyle patterns and dietary behavior were analyzed using a chi-square test. Irregular bedtimes and the use of alcohol and tobacco were higher in high-risk Internet users than no risk Internet users. Moreover, in high-risk Internet users, irregular dietary behavior due to the loss of appetite, a high frequency of skipping meals, and snacking might cause imbalances in nutritional intake. Diet quality in high-risk Internet users was also worse than in potential-risk Internet users and no risk Internet users. We demonstrated in this study that high-risk Internet users have inappropriate dietary behavior and poor diet quality, which could result in stunted growth and development. Therefore, nutrition education targeting high-risk Internet users should be conducted to ensure proper growth and development.

• Journal of the korean academy of Pediatric Dentistry
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• v.25 no.3
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• pp.525-532
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• 1998

The autism is a complex disorder, characterized language impairment, perceptual-motor difficulties, and social disturbance. The autistic children have hyperactivity, lack of communication' lack of cooperation, inappropriate patient/dentist interaction, so they require professionally recognized behavioral management technique during dental treatment such as behavior modification, phamacological agents, and general anesthesia. A behavior management technique can be chosen by factors such as the severity of autism and possible accompanying disabilities, degree of cooperation, oral and general conditions of children. A non-pharmacological behavior modification may be selected for the autistic children who are able to communicate with dentist with mild dental caries, without compromised medical history. In case of excessively hyperactive, destructive, antisocial, and/or severe communicative disorder, a sedation technic with chloral hydrate, hydroxyzine, midazolam or nitrous oxide gas might to be performed. General anesthesia is preferred for severe communicative and/or behavioral disorder, elder age, excessive dental care need, and living a remote area.

• Journal of the Korean Society of School Health
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• v.28 no.3
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• pp.211-219
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• 2015

Purpose: The purpose of this study was to examine the effect of health education based on life skill training (LST) on middle school students' health knowledge, attitude, and behavior. Methods: For this study, 961 middle school students, residing in Seoul, Korea, were selected. The students received health education one day a week for 7 weeks from September 1, 2014 to October 25, 2014. Before and after the whole education program, the students filled out questionnaires surveying on their health knowledge, attitude, and behavior. Excluding inappropriate data, the data of 843 students was analyzed through Paired t-test. Results: After the education program based on LST, there were statistically significant increases in the scores for knowledge about drinking, body image distortion, good eating habits, right usage of smartphone, and prevention of smartphone addiction (p<.05). There were also statistically significant increases in the scores for attitude toward smoking, drug, good eating habits and prevention of smartphone addiction (p<.05). There were statistically significant increases in the scores for behavior regarding drug, good eating habits, right usage of smartphone and prevention of smartphone addiction (p<.05). Conclusion: Health education based on life skill training was especially effective in improving the subjects' scores for health knowledge, attitude, and health behavior. Therefore, various and systemic LST educational programs should be developed and implemented and their effects should be evaluated in further studies.

• Steel and Composite Structures
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• v.20 no.4
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• pp.813-832
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• 2016

This research deals with the behavior of Composite Box Girder Bridges (CBGBs) subjected to environmental effects such as solar radiation, atmospheric temperature, and wind speed. It is based on temperature and thermal stress results, which were recorded hourly from a full-scale experimental CBGB segment and Finite Element (FE) thermal analysis. The Hemi-cube method was adopted to achieve the accuracy in temperature distributions and variations in a composition system during the daily environmental variations. Analytical findings were compared with the experimental measurements, and a good agreement was found. On the other hand, parametric investigations are carried out to investigate the effect of the cross-section geometry and orientation of the longitudinal axis of CBGB on the thermal response and stress distributions. Based upon individual parametric investigations, some remarks related to the thermal loading parameters were submitted. Additionally, some observations about the CBGB configurations were identified, which must be taken into account in the design process. Finally, this research indicates that the design temperature distribution with a uniform differential between the concrete slab and the steel girder is inappropriate for describing the thermal impacts in design objective.