• Journal of Preventive Medicine and Public Health
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• 제45권6호
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• pp.335-343
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• 2012

Mercury is emitted to the atmosphere from various natural and anthropogenic sources, and degrades with difficulty in the environment. Mercury exists as various species, mainly elemental ($Hg^0$) and divalent ($Hg^{2+}$) mercury depending on its oxidation states in air and water. Mercury emitted to the atmosphere can be deposited into aqueous environments by wet and dry depositions, and some can be re-emitted into the atmosphere. The deposited mercury species, mainly $Hg^{2+}$, can react with various organic compounds in water and sediment by biotic reactions mediated by sulfur-reducing bacteria, and abiotic reactions mediated by sunlight photolysis, resulting in conversion into organic mercury such as methylmercury (MeHg). MeHg can be bioaccumulated through the food web in the ecosystem, finally exposing humans who consume fish. For a better understanding of how humans are exposed to mercury in the environment, this review paper summarizes the mechanisms of emission, fate and transport, speciation chemistry, bioaccumulation, levels of contamination in environmental media, and finally exposure assessment of humans.

• 농촌의학ㆍ지역보건
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• 제34권2호
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• pp.223-233
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• 2009

본 연구는 다양한 홍보매체를 접하고 있는 우리나라 중학생을 대상으로 금연홍보노출정도와 흡연과의 관련성을 살펴보고자 한다. 연구의 대상은 2007년 청소년건강행태온라인조사에 응답한 중학생 38,820명으로서 이 중 설문에 대한 불충분한 응답으로 지난 일 년 동안 접한 금연홍보매체와 흡연율을 평가할 수 없는 1,106명을 제외한 37,714명을 최종 분석 대상자로 하였다. 통계 프로그램은 SPSS version 17.0을 이용하였다. 연구 결과 흡연율은 학년이 올라갈수록 증가하였고, 대상자의 특성에 따른 흡연율은 1학년에서 성별, 거주 지역, 학업성적, 경제상태, 부모와 동거여부, 스트레스 정도, 현재음주여부, 금연교육경험, 금연홍보매체노출 정도에 따라 유의한 차이가 있었다. 2학년에서는 거주 지역을 제외한 변수에서 유의한 차이를 보였고, 3학년에서는 거주 지역과 금연교육경험을 제외한 변수에서 유의한 차이를 보였다. 대상자의 금연홍보매체노출이 흡연과 관련된 제 변수를 통제한 상태에서 독립적으로 유의한 변수인지 파악하기 위하여 로지스틱 회귀분석을 실시한 결과 1학년의 경우 금연홍보매체노출이 전혀 안 된 군을 기준으로 하였을 때 5~6점이 교차비 0.49(95% CI=0.33-0.74)로 유의하게 낮았고, 3학년의 경우 5~6점이 교차비 0.57(95% CI=0.43-0.76)로 유의하게 낮았다. 결론적으로 우리나라 중학생에서 금연홍보매체 노출정도와 흡연과의 관련성을 파악할 수 있었고, 추후 선후 관계나 다양한 매체를 활용한 효과적인 메시지 전달을 위한 금연광고 개발에 있어 심도 있는 연구가 필요할 것이다.

• 아동학회지
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• 제32권3호
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• pp.91-105
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• 2011

The purpose of this study was to investigate the relationship between sexual development, sensation seeking traits, exposure to pornographic media, peer conformity, and potential delinquency on the part of Korean middle school students. In order to verify the model, we used structural equation model (SEM) analysis. 603 adolescents were participated in the study. The results were as follows; first, both male and female models goodness of fit and significant paths was proven. Second, it was also found that gender difference existed in the model. The implications of this study and the suggestions for future research were also discussed.

• International Journal of Contents
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• 제12권3호
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• pp.1-11
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• 2016

This exploratory study examines the critical factors associated with news consumers' perception of information overload and news consumption patterns. An online survey was conducted with Qualtrics panels (N = 1001). The demographics and three antecedent factors of perceived information overload were considered including the frequency of news access through multiple media platforms, level of attention to news, and interest in news. Three news consumption patterns were investigated as possible consequences of perceived information overload: news avoidance, selective exposure, and willingness to pay for news. The results of hierarchical regression analyses revealed a meaningful distinction between general and news information overload. Overall, news consumers who paid more attention to news through newer media/platforms/devices perceived higher levels of information overload, were more willing to pay for the news, and often avoided news or selectively exposed themselves to certain sources of news to manage news information overload.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.230-231
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• 2018

Recently, the danger for radioactive materials has become a hot topic. Beginning with the Chernobyl nuclear accident in 1996, in 2011, the Fukushima nuclear power plant in Japan suffered major damage such as large-scale casualties and radioactive dangerous area selection. Concerns about leakage of radioactive materials due to recent earthquakes have been deepening in Korea, such as Wolsong Nuclear Power Plant in Gyeongju, and there is a growing interest in the safety of radioactive materials through the media and the media. However, the route to exposure to radioactive materials is not limited to these large-scale nuclear accidents. Typical examples of this are radioactive substances exposed in daily life. In the case of radon gas, the danger is being revealed through current events programs and news, and natural radiation exposure is attracting attention.

• 스마트미디어저널
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• 제12권7호
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• pp.68-75
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• 2023

본 연구에서는 팬덤과 아이돌 간의 채팅 UX 디자인에 관한 연구를 시행하고자 한다. 아이돌과 팬덤 사이의 1:다(多) 형태의 메시지 노출 방식에 대해 연구하고 최적의 노출 형태와 속도에 대해 실험하였다. 실험 결과를 바탕으로 다양한 옵션 중에서 1초당 30개 문장이 노출되는 형태를 선택하였으며, 이를 바탕으로 실제 유니버스 플랫폼에 이 결과물을 적용함으로써 보다 아이돌과 팬 사이의 커뮤니케이션이 원활할 수 있도록 추진하였다.

• 한국멀티미디어학회논문지
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• 제23권11호
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• pp.1435-1445
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• 2020

Advertising is a communication that aims to persuade you through communication. Local governments are enforcing a lot of budget for outdoor advertisements and exposing advertisements to various media. However, in the case of outdoor advertisements, advertisements are executed without considering the specificity of the exposure environment, so it is inferior to the budget input. Therefore, this study aims to help local advertisement agents, producers, and related parties by classifying components by combining video analysis methodology and video ad analysis methodology for effective message delivery and immersion in local outdoor advertising. As a discussion to provide an efficient production methodology for outdoor advertising video production in the future, it is an extension of exploratory research through content analysis.

• 한국환경독성학회:학술대회논문집
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• 한국환경독성학회 2003년도 추계국제학술대회
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• pp.145-145
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• 2003

In the case of POPs (persistence organic. compounds) that have been release into environment, the goal of exposure assessment is to estimate the individual's total intake through various contact media and exposure pathways. The objective of this study was to estimate human exposure to environmental pollutants using a multimedia/multiroute scenario in an urban area of Korea.

• Journal of Preventive Medicine and Public Health
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• 제46권4호
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• pp.211-211
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• 2013

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.25-39
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• 2003

Risk and exposure assessment for subsurface environment is very important for both aspects of health and environmental protection as well as making decision of remedial goal for engineering activities. Exposure due to hazardous chemicals in the subsurface environment is essential to assess risk lev121 to individual person, especially from soil and groundwater environmental media. In this paper, the status of soil and groundwater contamination is presented to discuss on the problem for environmental risk assessment. The methodologies of fate and exposure models are also discussed by conducting the case studies of exposure assessment for heavy metals, organic compounds, and dioxin compounds. In addition, the structure of exposure models and available data for model calculation are examined to make clear more realistic exposure scenarios and the application to the practical environmental issues. Three kinds of advanced remediation techniques for soil and groundwater contamination are described in this paper, The most practical method for VOCs is the bio-remediation technique in which biological process due to consortium of microorganisms can be applied. For more effective remediation of soil contaminated by heavy metals we have adopted the soil flushing technique and clean-up system using electro-kinetic method. We have also developed the advanced techniques of geo-melting method for soil contaminated by DXNs and PCB compounds. These techniques are planed to introduce and to apply for a lot of contaminated sites in Japan.