• Journal of The Korean Association of Information Education
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• v.18 no.4
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• pp.471-482
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• 2014

It is known that the smart education has a positive impact of critical thinking skills and problem solving, communication and collaboration, creativity and innovation in the 21st century. However, some people concern about the adverse effects of smart education such as smart devices addiction and health problems. In this study, we conducted the adverse effects of education using smart devices on students. The questionnaire survey was conducted and analyzed for students in 9 schools at A city(four elementary schools, three middle schools, two high schools) that are receiving smart education. The types of adverse effects of smart education includes smartphone addiction, lack of information ethics, health problems, and lack of social and learning ability. We showed the differences each item compared among elementary school, middle school and high school about adverse effects of smart education. The result of survey didn't have any adverse affect of smart education such as internet addiction or smartphone addiction. However in order to protect the copyright, the school needs to fight against indiscriminated downloads and perform the information ethics education. Plus we surely need to be more open-minded in reading and exercise at school and home.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.4
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• pp.941-948
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• 2014

As smart phone became popular, a word smart phone syndrome is also commonly used among us. Its excessive uses cause adverse effects on daily lives such as mental and physical health education and individual relationships. This paper targeted to undergraduate students who are mostly using smart phones to analyze on their perception of smart phone syndrome and a reality of typical syndrome such as digital forgetfulness, smart phone addiction and dependence on Kakaotalk. It also suggested basic countermeasures for preventing smart phone syndrome. The perception on smart phone syndrome of undergraduate students using over the average 5 hours a day was resulted to be very low, and it is analyzed smart phone syndrome including digital forgetfulness, smart phone addiction and dependence on Kakaotalk is quite serious, so that proper countermeasures and the actions are required.

• The Journal of Korean Society for School & Community Health Education
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• v.18 no.2
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• pp.43-53
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• 2017

Objectives: The purpose of this study is to examine the relationship between sexually explicit video viewing and social support through the mass media and the sex openness of adolescents. Methods: This study used as the main data of 'Study on Measures against Sexualization of Juveniles through Mass Media in the Smart Age' conducted by 'National Youth Policy Institute' in 2014 nationwide. 3,176 of the 4,356 adolescents in Korea were selected as the final study subjects after excluding the 1,180 missing adjectives. Results: As a result, sex openness of male students was higher than that of female students. The higher the grade, the higher the sex openness, and the higher the stimulus, the higher the sex openness. The higher the imitation sharing, the higher the sex openness. The higher the human rights violation, the lower sex openness. Finally, the higher the social support, the higher the sex openness. Conclusions: In conclusion, strengthening the management of realistic media providers and emotional education rather than the unconditional regulation of mass media is expected to help prevent adverse effects on the sex openness of adolescents.

• The Journal of Korean Society for School & Community Health Education
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• v.23 no.4
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• pp.41-48
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• 2022

Objectives: This study aims to investigate the mediating effect of social support on the relationship between the viewing of sensational videos of idol stars through the mass media and the sexual openness of adolescents. Methods: This study used the 'Study on countermeasures against sexual commodification of adolescents through mass media in the smart era' conducted by the 'Korea Youth Policy Institute' in 2014 for the entire country as the main data. Variables consisted of socio-demographic characteristics of study subjects, video viewing, social support, and sexual openness. For data analysis, SPSS ver 23.0 program was used. Results: As a result of comparing the averages, male students (20.40) had higher sexual openness than female students (18.67), and high school students (20.27) had higher sexual openness than middle school students (18.05) at school level. By grade level, sexual openness increased from the first year of middle school (17.47) to the third year of high school (20.82) (p<0.001). In order to verify the mediating effect of video viewing on the effect of adolescent social support on sexual openness, 3-step mediated regression analysis and Sobel test were conducted. As a result, video viewing had a significant effect on sexual openness through social support (p<0.001). Conclusion: Rather than obscuring the environment of mass media unconditionally, creating an atmosphere according to the tendency of realistic social support and reinforcing emotional education will help prevent the adverse effects of reckless sexualization of adolescents.

• Biomedical Science Letters
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• v.14 no.4
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• pp.219-223
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• 2008

The present study was designed to clarify whether scuba diving at 5 meters of seawater influences cerebral hemodynamics, hematological and biochemical variables. Twenty healthy young men well trained scuba diving participated in this study. The blood flow velocity in the right and left middle cerebral arteries (L-MCAV and R-MCAV), blood pressure (BP), heart rate (HR), CBC and differential count, prothrombin time (PT), activated partial thromboplastin time (aPTT), biochemical variables, D-dimer and interleukin-8 (IL-8) levels were determined before, immediately after scuba diving for 30 min, and after 30 min of rest (Pre-scuba, Scuba and R-30m, respectively). L-MCAV and R-MCAV tended to increase, but the only significant increase was in L-MCAV in Scuba. SBP and HR significantly declined in R-30m compared with those of Pre-scuba and the Scuba. IL-8 levels were elevated in Scuba and R-30m compared with that of Pre-scuba. In Scuba and R-30m, hematological variables except PT and biochemical parameters excluding glucose and lactic acid did not significantly changed in comparison with those of Pre-scuba. PT level at Scuba and glucose level at R-30m significantly declined in Scuba, while lactate level at R-30m increased compared with each in Pre-scuba. However, PT level at Scuba was within a normal range. These results suggest that scuba diving at 5 m of seawater for 30 min has no adverse effects, is safe and useful for improving health. However, further study must be performed to clarify the mechanism of elevated IL-8 level following scuba diving.

• Journal of the Korean Data and Information Science Society
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• v.24 no.1
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• pp.41-51
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• 2013

In the Information age, internet addiction has been a big issue in a modern society. The adverse effects of the internet addiction have been increasing at an exponential speed. Along with a great variety of internet-connected device supplies, K-scale diagnostic criteria have been used for the internet addiction self-diagnose tests in the high-speed wireless Internet service, netbooks, and smart phones, etc. The K-scale diagnostic criteria needed to be changed to meet the changing times, and the diagnostic criteria of K-scale was changed in March, 2012. In this paper, we analyze the internet addiction and K-scale features on the actual condition of Gyeongbuk collegiate areas using the revised K-scale diagnostic criteria in 2012. The diagnostic method on internet addiction is measured by the respondents' subjective estimation. Willful error of the respondents can be occurred to hide their truth. In this paper, we add the survey response to the trusted reliability values to reduce response errors on the K-scale on the K-scale, and enhance the reliability of the analysis.