• Korean Security Journal
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• no.46
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• pp.31-62
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• 2016

This study is about the phenomenological study of bodyguards' ethical dilemmas. Through this study, the meaning and essence of bodyguards' ethical dilemmas will be analyzed based on empirical facts. The purpose of this study is to provide basic information of the prevention and solutions for their ethical dilemmas and to understand and research the process and the essentials of them. To achieve this goal of the study, seven bodyguards who experienced ethical dilemmas working more than five years are selected as objects of the study. Colaizzi's six stage method are applied into this study so information gathered through interviews and questionnaire from 0ctober 1st, 2015 to November 20th, 2015 is analyzed. From the process of this research, these following conclusions are drawn considering validity of this study and ethical things. As a result, bodyguards' ethical dilemmas are divided into six centric meanings and 20 thematic statement. First, the centric meaning is conflict factors and the themes are discordance of pre-practice, regulatory or procedure problems, communication about sturcture and job and service disagreement. Second, the centric meaning is limited professional roles and the themes are institutional custom, decision making, priorities. Third, the centric meaning is difficulties of circumstantial judgement at work places and the themes are ambiguity of decision, conflict of knowledge, experience and opinion. Forth, the centric meaning is reasonable self-defense and the themes are lack of responsibility, rationalization, intentional negligence and sense of shame. Fifth, the centric meaning is difficulties of social network and the themes are the relationships between subordinates and superiors, the role of a moderator, uncooperative work and unpleasant sayings and doings. Sixth, the centric meaning is keeping secrets and the themes are burried for and illegal practice.

• Korean Journal of Construction Engineering and Management
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• v.11 no.3
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• pp.105-114
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• 2010

As the Korean economy went into a recession because of the global financial crisis in 2008, in order to vitalize the Korean economy, the government raised SOC budget and made its execution earlier. To prevent increases in budget for the government financial investment projects, the government controlled the project cost of SOC construction projects by enacting 'Guideline for total project cost management' in 1994 and complementing the relevant system. However, different from government intention, the total project cost of SOC projects were increased drastically. Hence, the government authorities and research institutions insisted the necessity of supplementation and improvement for the total project cost management system. This research is to provide the improvement for the total project cost management system of domestic SOC projects. In this research, As-Is Model was adjusted considering status of the total project cost management in the current SOC projects. Also the cost management of construction projects between domestic and other developed countries was studied, analyzed and compared. Based on the above, problems related to total project cost management of domestic SOC projects were found out and an improved total project cost management was provided to improve these problems.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.4
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• pp.1863-1870
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• 2013

The purpose of this study is when the cases will be found, used as a basic data for clinical severity prediction, and research on suicide prevention. By classifying the group of survival and death about the patients who visit the Emergency Medical Center by attempt suicide by drug addiction, identifying the condition when visiting and results of the treatment after visiting. From June 2009 to May 2011, last two years data that among the drug abusers who visited the Emergency Medical Center in C-University Hospital in Gwang-Ju, only suicidal patients, except with unintentional accidents were collected. The findings, among the drug addiction patients who high age, lower level of education and living alone were the mortality rate was higher. And if who drunk the agricultural chemicals, the convalescence was not good. If the causes of suicide were economic problems and depression, the mortality rate was higher. And when visit hospital, if the consciousness was stupor and semi-coma/coma, the convalescence was not good. As grasp the risk for suicide patients of drug addiction, help on the Prediction of clinical severity, also stamp the appropriate drug education with psychological support is more important on them.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.517-529
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• 2017

The purpose of this study is to develop and evaluate the scale for university students' health behaviors. This research is based on Roger's(1975) Protection Motivation Theory and Weinstein(1988)'s Precaution Adoption Process Model as theoretical frameworks. The contents of the scale were first abstracted from personal depth interviews of qualitative study on university students' health behavior experiences and review of its related literature. The initial items consisted of 76 behavior questions and 34 perception questions. After conducting the preliminary test, 33 behavior questions and 24 perception questions were selected for the final test by revisions on the basis of the result of the content validity test and the item understanding test. The questionnaires for the final test were distributed to 400 students enrolled in three universities. The questionnaires collected from 373 participants were analyzed by the SPSS program. From the examination of construct validity, item correlation, and factor relation turned out to be relevant. Five factors were determined from 27 items with a cumulative explained variance of 54.498 %. After examining reliability and validity of the collected dat, 27 items were finalized as the scale for university students' health behaviors.

• Journal of Korean Society of Transportation
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• v.30 no.6
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• pp.27-36
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• 2012

In Korea, 28,641 cases of traffic accidents were caused by drunk driving in 2010. These statistics accounted for 12.62% of total number of traffic accidents. Moreover, the percentages of deaths and injuries from them were nearly 15% of those from whole traffic accidents. While police has emphasized enforcement efforts in order to reduce drunk driving, culture generous to drunk driving in addition to the absence of an appropriate intervention system for habitual drunk drivers have contributed to the increasing number of the drunk driving accidents in Korea. This study examined specific behavioral changes in drunk driving by comparing drivers' behavior pattern in non-alcoholic condition to those in alcoholic condition, using a psychomotor test and a driving simulator. In the psychomotor test measuring participants' reactions to the target stimulus, it was revealed that participants' correct responses were decreased, false responses were increased, and no responses also were increased after drinking. Furthermore, in the driving simulator performance after drinking, not only driving speed was faster but also the deviation of an accelerator pedal pressure and of the vehicle's lateral position were much increased. These results indicated that alcohol consumption would impair visio-cognitive ability and deteriorate driving safety. Finally, the implications and limitations of our findings and suggestions for the future research were discussed.

• Korean Journal of Plant Resources
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• v.36 no.1
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• pp.100-106
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• 2023

In order to control the fire blight disease, all plants within the radius of the diseased orchard were removed in the early stage of the outbreak, or antibiotics control was performed for prevention. Since the beginning of antibiotics use on plants, the potential for development of resistance to antibiotics by the plant pathogen and unintended detrimental effects on the fruit trees and environment has become a problem. The purpose of this study is to determine the degree of phytotoxicity to fruit trees caused by excessive spraying of the fire blight disease disinfectant and to establish basic data for safe disinfectant guide. We analyzed whether damage to the fruit tree and the maximum residual limit of fruit was exceeded when three kinds of the fire blight disease disinfectants were continuously sprayed in excess of the number of safe use during the growing season. There was no phytotoxicity in apple 'Fuji' and pear 'Niitaka', and oxolinic acid was detected beyond the limit of quantitation in 'Fuji' grown without a bag, and the other disinfectants were detected below the maximum residue limit. When these disinfectants are continuously sprayed in excess of the number of safe, phytotoxicity may remain on the fruit. Therefore, it is necessary to observe the prescribed dilution factor and observe the safe frequency and the timing of use.

• Korean Journal of Culture and Social Issue
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• v.17 no.4
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• pp.435-459
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• 2011

The present study explored Korean parents' perceptions of and behavior toward game use among teenagers in Korea. A total of 600 Korean mothers of teenagers residing in Seoul and five other metropolitan areas participated in the survey. The survey was constructed based on five categories of variables, including the overall perception of games and game use, specific attitudes toward game use, cognitions about and attitudes toward game addiction, factors predicting parental monitoring of children's game use, and views and opinions about what needs to be done to promote healthy game cultures as well as to prevent problematic game use among teenagers in Korea. Results indicate that the respondents' overall perceptions of and attitudes toward games and game use are negative. In contrast, attitudes toward game use of the respondent's own child are contingent upon various comparison standards. Results also indicate that the respondents tend to overestimate the possibility that their own child is addicted to games, and their perceptions of game addiction are based on a narrow range of behavioral symptoms. Additional analyses indicate that parental monitoring of teenagers' game use can be predicted by the theoretical model driven from Ajzen(1991)'s theory of planned behavior. Finally, results also indicate that, in order to deal with the problems associated with teenagers' game use, proactive approaches to promote healthy game cultures as well as various initiatives to prevent problematic game use are necessary. Implications of the findings and future direction were discussed.

• Journal of Intelligence and Information Systems
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• v.29 no.3
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• pp.19-36
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• 2023

As advances in information and communication technology have made it easier for anyone to produce and disseminate information, a new problem has emerged: fake news, which is false information intentionally shared to mislead people. Initially spread mainly through text, fake news has gradually evolved and is now distributed in multimedia formats. Since its founding in 2005, YouTube has become the world's leading video platform and is used by most people worldwide. However, it has also become a primary source of fake news, causing social problems. Various researchers have been working on detecting fake news on YouTube. There are content-based and background information-based approaches to fake news detection. Still, content-based approaches are dominant when looking at conventional fake news research and YouTube fake news detection research. This study proposes a fake news detection method based on background information rather than content-based fake news detection. In detail, we suggest detecting fake news by utilizing related video information from YouTube. Specifically, the method detects fake news through CNN, a deep learning network, from the vectorized information obtained from related videos and the original video using Doc2vec, an embedding technique. The empirical analysis shows that the proposed method has better prediction performance than the existing content-based approach to detecting fake news on YouTube. The proposed method in this study contributes to making our society safer and more reliable by preventing the spread of fake news on YouTube, which is highly contagious.

• Korean Journal of Culture and Social Issue
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• v.13 no.1
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• pp.43-61
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• 2007

Most previous research on safer sex and condom use has been mainly focused on individual's dispositional factors such as attitudes, perceived control, intention, and etc. However, a few researchers recently started to propose that condom use is not a matter of individual behavioral decision but a product of serious interactive negotiation processes and condom negotiation would be the proximal key-determinant of condom use behaviors. The present research categorized condom-negotiation strategies and preferences of Korean college students and examined relationship between the strategies and other sex-related concepts. 186 participants' strategies on a free-response questions of condom negotiation revealed 7 types of persuasion strategies for condom use; Pregnancy risk, responsibility, care for partner, withholding sex, sexual disease, direct request, and sexual satisfaction (in order of preference). 6 types of persuasion strategies for condom avoid were abstracted: Pregnancy free, Sexual satisfaction, responsibility, direct request, unfaith toward condom, and withholding sex (in order of preference). The effects of gender, sexual experience, and culture were found and discussed in their implications for sexual education,

• Proceedings of the Korean Society of Life Science Conference
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• 2002.05a
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• pp.17-22
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• 2002

지구상에는 수천종의 버섯류가 자생하고 있어 유전자원으로서의 중요성이 지대할 뿐만 아니라 기능성 식품소재 및 각종 약리 활성을 나타내는 신약개발 소재로도 크게 주목을 받고 있다. 이들 버섯은 균사체의 영양대사로 얻어지는 대사산물이 축적된 자실체의 형태로 나타나는데, 최근에 와서 자실체 및 균사체의 추출물이나 균사체 배양물이 체질개선이나 각종 병의 예방과 치료에 효과가 있는 것으로 밝혀져 건강식품이나 의약품으로서의 용도가 크게 증가하고 있는 실정이다. 특히, 담자균이 생산하는 특정 구조를 갖는 다당류는 오래전부터 종래의 화학요법제와는 달리 숙주내의 면역 기능을 부활하여 소위 면역요법제로서의 항암효과를 나타냄이 알려져왔었다. 현재까지 제약 및 의학적인 방법이 질병의 주된 치료방법으로 이용되어 왔지만 최근에 특정식품의 섭취가 만성질환의 발생을 억제 또는 지연시킨다는 연구 보고가 나오면서부터 만성질환의 치료방법으로서 식이요법을 중요하게 생각하게 되었다. 따라서 새로운 식품소재 및 가공식품의 개발을 통한 성인병 등의 각종 질병예방이 국민보건문제 해결에 필수적이다. 현재 일본 등에서는 표고버섯, 구름버섯 및 치마버섯 유래의 다당체 또는 단백다당체인 lentinan, krestin 또는 PS-K, schizophyllan 및 PSP 등이 실용화되어 높은 가격에 판매되고 있다. 국내에서도 야생 구름버섯 자실체로부터 추출한 단백 다당체인 Copolang(광동제약)이 개발되어 PS-K와 유사하게 암의 치료에 병행 사용되고 있고, 또 강력한 항암활성이 보고된 상황버섯의 균사체 추출물인 단백 다당체가 Mesima-Ex FK(한국신약)라는 상품명으로 암의 치료에 병행 사용되고 있는 것으로 알려지고 있다. 담자균류와 아울러 미생물 유래 다당체는 그 구조와 특성에 있어서 매우 다양함을 지니고 있다. 이러한 미생물 유래 다당류의 공업적 생산과 이용에 대한 연구로서는 Leuconostoc mesenteroides가 생산하는 dextran이 혈장증량제로 개발된 이래 Xanthomonas campestris가 생산하는 pullulan, Zoogloea rgmigera가 생산하는zooglan둥이 대표적인 예로 보고되고 있다. 한편, 미생물 유래 다당류는 구성당, 분자량, 화학적 구조 등과 같은 특성의 차이에 의해 많은 종류가 존재하고 있으며, 다양한 물성 및 유화제, 응고제, gel 형성제, 필름 형성제, 흡착제, 안정제, 접착제 등과 같은 용도로 광범위하게 이용되고 있다. 또한 근래에 들어서는 미생물 유래 다당체가 지니는 항암활성이 확인되어 새로운 의약품으로서의 개발 가능성이 기대된다. 그 밖에도 기존에 알려져 있는 식물 및 해조류 유래의 다당체와는 달리, 발효조를 이용한 연속배양에 의해 공업적 대량 생산이 가능하며, 더욱이 생산된 다당체의 분리 및 회수가 용이하다는 이점을 지니고 있다. 최근에 들어서는 유전공학적 기법을이용한 고생산성 변이균주 및 새로운 기능을 지닌 다당체의 개발에 관한 연구가 보고되고 있는 등 고부가가치를 지닌 새로운 바이오 소재로서의 기능 및 용도 개발에 관한 연구가 활발히 진행되고 있다. 이러한 항암 활성을 나타내는 여러 가지 담자균류중 Agaricus blazei로부터 생산되는 다당체는 고형암 이외에 S형 결장암, 난소암, 유방암, 폐암, 간암 등에 효과가 입증되었고, 천연물질에 의한 암 면역요법으로 각광을 받고 있으며, 항암 및 항virus의 완치율과 저지율에서 현재 여러가지 약효가 있는 버섯중에서도 탁원한 효과가 있는 것으로 증명되고 있다. 이들 다당체는 사이토카인을 생산시켜서 T임파구와 B임파구의 항원 특이적인 면역반응을 활성화시키고, 세포장해성 T세포와 활성화 대식세포의 세포장해 기능을 충진시켜서 암세포를 파괴시킨다. 또한 콜로니 자극인자인 사이토카인을 생산시켜서 면역담당세포의 신생을 촉진시키기도 하며, 암의 화학요법과 방사선 요법으로 저하된 백혈구를 회복시키는 역할을 한다. 따라서 최근의 연구동향은 생산된 다당체의 항암활성을 향상시키고자 하여 배양기간중에 interleukin을 의도적으로 첨가하는 경향이 있다. 이러한 항암 활성을 나타내는 담자균체 유래 다당체는 버섯의 기원에 따라 그 형태에 약간의 차이를 나타내기는 하나 그 기본 형태는 ${\beta}-(1,6)-glucosyl$ 분지를 가진 ${\beta}-(1,3)-glucan$이며, 평균 분자량은 50 ${\sim}$ 200만 정도이다. Agaricus blazei의 원산지인 브라질의 피에다데(Piedade) 지방의 환경조건(산지의 습도는 80%, 낮 기온 $35^{\circ)C$, 밤 기온 $20{\sim}25^{\circ}C$로 대단히 높으며, 정기적으로 열대지방 특유의 소나기가 내리는 지역)에서 볼 수 있듯이 Agaricus blazei의 성장 환경은 매우 까다로운 편이며, 날것으로는 보관이 잘 안되기 때문에 그 재배에 큰 어려움이 있다. 또한, 고체배양에 의해 생산된 버섯 자실체로부터 유기용매 및 열수추출 방법으로 다당체를 생산하는 방법은 균일한 형태의 버섯 자실체를 공급받기가 어렵기 때문에 다당체의 생산 수율이 낮고, 많은 노동력이 요구되는 어려움이 있다. 그러나 액체배양에 의한 다당체 생산의 경우는 고체배양에 의한 다당체 생산에 비해 일정한 조건하에서 배양이 가능하다는 장점이 있으며, 항상 균일한 균사체 및 배양액을 얻을 수 있다. 따라서 원하는 유용물질을 쉽게 획득할 수 있는 장점이 있다.