• Journal of Digital Convergence
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• v.16 no.7
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• pp.299-308
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• 2018

This study was conducted to examine the mediating effect of executive function deficiencies on the relationship between smartphone addiction and memory impairment and to suggest treatment implications for adults with smartphone addiction symptoms. For this study, 300 adults(146 males and 154 females) were conducted smartphone addiction scale, Barkley Deficits in Executive Functioning Scale-Short Form(BDEFS-SF), and Multifactorial Memory Questionnaire(MMQ). The results are as follows. First, correlation analyses showed that smartphone addiction, executive function deficiencies, and memory impairment were positively correlated. Second, Smartphone addiction group showed significantly higher scores on all of the subfactors of executive function and memory impairment. Third, Stepwise regression analyses revealed that self-organization/problem solving, self-management to time, self-restraint, and withdrawal were the best predictors of memory impairment. Forth, Executive function deficiencies fully mediated the relationship between smartphone addiction and memory impairment. These findings were considered to suggest that treatment programs for smartphone addiction group needed to include training for cognitive improvement such as executive function rehabilitation.

• Journal of agricultural medicine and community health
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• v.34 no.2
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• pp.214-222
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• 2009

Objectives: This study was performed to evaluate the effect of navigator education program for cancer screening, which is designed for improvement in knowledge of cancer, perceived self efficacy and communication skill of the breast and cervical cancer screening for middle-aged and aged women in urban areas. Cancer screening navigator is lay health advisor who are educated for providing information, emotional support about cancer screening at the community. Methods: The subjects were 33 women at the age of 40-69 and educated for 12 hours through the education program. The control group subjects were 30 women. For statistical analysis, descriptive statistics and paired t-test were used with SPSS WIN 14.0. Results: Contents of education program were case of cancer early detection, benefit of breast cancer screening, benefit of cervical cancer screening, health care system for cancer screening, role of cancer screening navigator, communication skill, transtheoretical model and role play. Knowledge of cancer(t=4.267, p=0.000) and communication skill(t=4.947, p=0.000) of the women increased significantly after implementing the 12 hours education program. Conclusion: The results suggest that navigator education for cancer screening has an effect in increasing knowledge of cancer, and communication skill scores.

• Tuberculosis and Respiratory Diseases
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• v.58 no.6
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• pp.607-613
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• 2005

Background : Early death is an important problem associated with the management of community-acquired pneumonia. However, there is little information on the risk factors associated with it. The aim of this study was to identify the factors associated with early death in community-acquired pneumonia patients. Methods : From January 1999 to July 2004, 1,487 adult patients with community-acquired pneumonia who were admitted to the pulmonary department via emergency center were examined. Early death was defined as those who died within 2 days of hospitalization. The clinical and laboratory aspects of the patients who died early (n = 30) were compared with those of an age and gender matched control population (n = 60). Results : In the early death group, respiratory rate, heart rate, and blood urea nitrogen (BUN) were significant higher (p < 0.05 for all), while the arterial pH, systolic pressure, and $PaO_2$ were significant lower (p < 0.05 for all) than the control. The independent factor significantly associated with early death was tachypnea (OR, 7.049). Conclusion : The importance of an early clinical assessment in emergency center with community-acquired pneumonia needs to be emphasized in order to recognize patients at risk of early death.

• Journal of Gifted/Talented Education
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• v.19 no.1
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• pp.95-117
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• 2009

This study investigated the relationships of the self-regulated learning strategies used in both science and English classes and motivation to academic performance of science-gifted high school students. Participants of this study were 144 freshmen of Korea Science Academy It was found out that the use of self-regulation learning strategies and motivation exerts differential influence on the academic performance of science-gifted students, depending on the subjects they study. Results showed that they used more vigorously in science class those self-regulated strategies which consist of cognition, metacognition, and resource management strategies than in English class. In addition, their motivation level in science class was significantly higher than that in English class. Self-regulated strategies did not explain any variance in physics GPA. Task value among the motivation variables accounted for 2 percent of variance in physics GPA. Metacognition and time and study environment variables explained 8 percent and 15 percent of variance in English GPA, respectively. Self-efficacy in motivation accounted for 30 percent of variance in English GPA, These results were discussed in the light of instruction for science-gifted high students.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.30 no.4
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• pp.51-64
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• 2019

In addition to emphasizing practicality, as in some academic disciplines, LIS is also interested in the research activities and journal publishing of librarians. Despite the high interest, there are few Korean studies on librarian authors' publishing. This study focuses on analyzing the status of librarians' publishing and finding ways to activate their journal publishing. This study analyzed the papers of the librarian authors published from 2014 to 2018 in Journal of the Korean Biblia Society for Library and Information Science and identified the characteristics of librarians who are publishing. As a result, librarians accounted for 15.56% of all authors. However, it is encouraging that the number of librarians' authorship stabilized, and that many librarians are the main authors. Librarians who were energetically publishing were public or school librarians, and academic librarians were slightly behind. There were graduate student librarians who collaborated with the advisor. In order to increase the librarian's publishing, it seemed to be necessary to improve not only the librarian's efforts but also the recognition and assistance of his/her library. Both the librarian and his/her library should be aware of the importance of publishing the journals, and should establish concrete plans such as resilience, compensation, and support. In this way, the librarian's valuable practical experience will be published in research papers and widely shared among researchers and practitioners.

• Korean Journal of Construction Engineering and Management
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• v.15 no.2
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• pp.12-22
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• 2014

Recently, many people have been damaged seriously by construction noise. Accordingly, there have been increased the complaints and disputes. These complaints should be controlled strictly. Otherwise there could be delays or stops of project and losses of time and money. For this reasons, the Korean government is trying to convert from depending on the soundproof wall to noise control system focusing on noise sources. However, it is difficult to control the noise which is generated from construction site because construction equipment has very high noise level and construction noise generates temporarily and irregularly. Also, people do not know how much low frequency affect human body adversely because they cannot perceive low frequency noise easily. Hence, recently developed countries have conducted the research on the low frequency noise which damages on human physically and mentally. However, passive noise control is insufficient to reduce the low frequency noise, but only efficient to lower the high frequency noise. Thus, an approach which can complement limitations of passive noise control is needed. Therefore, the purpose of this research is to suggest the noise management model using active noise control on construction site. Also, ANC simulation has been conducted to examine its applicability on construction equipment. As a result, it is expected that there will be a reduction of construction noise and demages, as well as both mental and physical damages.

• Restorative Dentistry and Endodontics
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• v.31 no.4
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• pp.269-281
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• 2006

This study evaluated the effectiveness and safety of an experimental bleaching strip (Medison dental whitening strip. Samsung medical Co., Anyang, Korea) containing 2.9% hydrogen peroxide. Twenty-three volunteers used the bleaching strips for one and a half hour daily for 2 weeks. As control group. the same strips in which hydrogen peroxide was not included were used by 24 volunteers with the same protocol. The shade change (${\Delta}E^{*}$, color difference) of twelve anterior teeth was measured using Shade Vision (X-Rite Inc., S.W. Grandville, MI, USA). Chroma Meter (Minolta Co., Ltd. Osaka. Japan) and Vitapan classical shade guide (Vita Zahnfabrik, Germany). The shade change of overall teeth in the experimental group was significantly greater than that in the control group (p < 0.05) and was easily perceivable. The change resulted from the increase of lightness (CIE $L^{*}$ value) and the decrease of redness (CIE $a^{*}$ value) and yellowness (CIE $b^{*}$ value). The shade change of individual tooth was greatest in canine. and smallest in central incisor. The safety of the bleaching strip was also confirmed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.651-659
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• 2017

Although the need for education on sexually-transmitted-infections (STIs) for adolescents has been increasing, a limited number of adolescents receive STI education. Importantly, the exposure of youth to an STI during their adolescence period can seriously affect their genital health. Smartphones are an innovative medium that can be used to change individual behaviors, especially useful when used to educate adolescents. Therefore, we developed a customized smartphone application for Korean adolescents. The application was based on Dick and Carey's instructional system design model. In this paper, we describe the process for development of the smartphone application, and the strategies we applied to attract adolescents to use the smartphone application. Six experts verified the educational content of the application. The application's easygoing words were chosen to help adolescents understand the topic. Strategies such as cartoon clips, secret chat rooms, buttons changing color from blue to grey, questions and answers, and a repeated-learning function were used to attract Korean adolescents to the application. The smartphone application developed in this study could be used in schools, youth centers, and hospital centers to improve STI knowledge, STI prevention, and STI coping skills.

• Applied Biological Chemistry
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• v.38 no.3
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• pp.239-247
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• 1995

The improvement of distribution system and freshness prolongation of crisphead lettuce were carried out through vacuum cooling and distribution under the low temperature. Lettuce that vacuum-cooled and transported by cold storage car was shown better freshness than that distributed by conventional method when they arrived at cunsuming area. And it took $10{\sim}17$ hours until their temperatures arrived at same temperatures when they were stored at $0{\sim}15^{\circ}C$ cold storage room. It was cooled to $1^{\circ}C$ after 27 minutes with vacuum cooling apparatus. The weight loss of lettuce that vacuum cooled and transported by cold storage car was below 5% after 30 days cold storage. And ascorbic acid and chlorophyll retentions were 86% and 52%, respectively. The shelf-life of crisphead lettuce, distributed by vacuum cooling and cold storage car transportation, was 5 days at $15^{\circ}C$ and over 40 days at $0^{\circ}C$, respectively. However, when it was distributed by conventional method, it was only 3 days at $15^{\circ}C$ and 20 days at $0^{\circ}C$, respectively.

• Korea journal of population studies
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• v.31 no.1
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• pp.147-164
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• 2008

The goal of this study was to examine the economic and cultural factors that influenced the intention of having a second child. In particular, this study intended to examine whether the factors related to the intention of having a child differed by the employment status of married women. The data for this study were drawn from the National Survey on the Trend of Marriage and Birth. This survey was conducted in 2005 by Korean Institute for Health and Social Affairs. The sample consisted of 690 married women who had one child(282 employed and 408 unemployed). The data were analyzed by logistic regression with SAS 9.1 program. The results showed that the employed women's intention of having a second child was affected by the husband's hours of housework, having a own mother(child's grandmother) and the perception of value of child. The employed women's intention of having a second child was affected by the perception of emotional value of child, and the sex of the first child. In sum, there were differences between the employed women and the unemployed women in the variables affecting the intention of having a second child. Perception of value of child was found important for both the employed and the unemployed women. Besides husband's hours of housework, having a mother and the needs for public support about child birth and rearing were found significant for the employed women. For the unemployed women, the costs of child care/education and the sex of the first child were found significant. The findings of this study suggested that different policy interventions be developed to satisfy the needs of the employed women and the unemployed women.