• 제목/요약/키워드: Individual-level assessment

검색결과 287건 처리시간 0.035초

공간 예측 모델을 이용한 산사태 재해의 인명 위험평가 (Life Risk Assessment of Landslide Disaster Using Spatial Prediction Model)

  • 장동호
    • 환경영향평가
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    • 제15권6호
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    • pp.373-383
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    • 2006
  • The spatial mapping of risk is very useful data in planning for disaster preparedness. This research presents a methodology for making the landslide life risk map in the Boeun area which had considerable landslide damage following heavy rain in August, 1998. We have developed a three-stage procedure in spatial data analysis not only to estimate the probability of the occurrence of the natural hazardous events but also to evaluate the uncertainty of the estimators of that probability. The three-stage procedure consists of: (i)construction of a hazard prediction map of "future" hazardous events; (ii) validation of prediction results and estimation of the probability of occurrence for each predicted hazard level; and (iii) generation of risk maps with the introduction of human life factors representing assumed or established vulnerability levels by combining the prediction map in the first stage and the estimated probabilities in the second stage with human life data. The significance of the landslide susceptibility map was evaluated by computing a prediction rate curve. It is used that the Bayesian prediction model and the case study results (the landslide susceptibility map and prediction rate curve) can be prepared for prevention of future landslide life risk map. Data from the Bayesian model-based landslide susceptibility map and prediction ratio curves were used together with human rife data to draft future landslide life risk maps. Results reveal that individual pixels had low risks, but the total risk death toll was estimated at 3.14 people. In particular, the dangerous areas involving an estimated 1/100 people were shown to have the highest risk among all research-target areas. Three people were killed in this area when landslides occurred in 1998. Thus, this risk map can deliver factual damage situation prediction to policy decision-makers, and subsequently can be used as useful data in preventing disasters. In particular, drafting of maps on landslide risk in various steps will enable one to forecast the occurrence of disasters.

고준위 방사성폐기물 처분장 불량 용기 발생 시나리오에 대한 폐쇄후 장기 방사선적 안전성 평가 (Post Closure Long Term Safely of the Initial Container Failure Scenario for a Potential HLW Repository)

  • 황용수;서은진;이연명;강철형
    • 방사성폐기물학회지
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    • 제2권2호
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    • pp.105-112
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    • 2004
  • 고준위 방사성폐기물 처분장에서 적용하고 있는 다중 방벽의 한 부분인 처분 용기는 벤토나이트 완충재의 팽윤과 지압으로부터 폐기물을 역학적으로 안정하게 보호함과 동시에 일정 기간 방사성폐기물의 유출을 억제하는 역할을 한다. 처분용기의 건전성은 엄격한 재질 선정과 품질 보증을 통해 확보된다. 그러나 용기 제작 과정이나 수송 중 예상치 못한 사건으로 인해 불량 용기가 발생할 가능성이 있다. 본 논문에서는 이와 같은 경우 방사성폐기물로 인해 생태계에 미치는 환경 영향을 연간 개인 선량으로 평가하였다. 연구결과 일부 불량 처분 용기가 발생하더라도 현 평가에 사용한 입력 데이터 범위에서는, 국내 고준위 방사성폐기물 처분 개념이 방사선적 안전성을 확보할 수 있는 것으로 판명되었다.

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Health Risk Assessment for Artificial Turf Playgrounds in School Athletic Facilities: Multi-route Exposure Estimation for Use Patterns

  • Kim, Ho-Hyun;Lim, Young-Wook;Kim, Sun-Duk;Yeo, In-Young;Shin, Dong-Chun;Yang, Ji-Yeon
    • Asian Journal of Atmospheric Environment
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    • 제6권3호
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    • pp.206-221
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    • 2012
  • Hazardous chemicals can be released from artificial turf used in some school playgrounds. To distinguish between Health risk assessment (HRA) exposure scenarios for this study, the ratio of elementary, middle and high schools was considered before final selection. Considering exposure pathways (inhalational, oral and dermal), media and materials were examined, targeting hazardous chemicals released from artificial turf playground-related products. Upon evaluation, the quantity of infill chips was shown to exceed the domestic product content standard (90 mg/kg) at eight (16%) out of 50 schools. PAHs were shown to exceed standards (10 mg/kg) at two (4%) out of the 50 schools. The excess cancer risk (ECR) of carcinogens was shown to be $1{\times}10^{-6}$ in most users for the worst exposure scenario. In children with pica, who represented the most extreme exposure group, the ECR was expected to be as high as $1{\times}10^{-4}$, showing the low risk level of carcinogens. The hazard index (HI) for individual chemicals was shown to be low, at around 0.1 or less, except for children with pica, according to the mean exposure scenario of artificial turf playground exposure. However, the HI was shown to exceed 1.0 in children with pica. Therefore, no direct health risk was found in using artificial turf playgrounds and urethane flooring tracks for the mean exposure scenario, except in children with pica.

고등학교 보건교육 관련 교사의 보건교육수행 및 관련요인에 대한 연구 (A Study on High School Health Education Teachers' Activities and Other Influential Variables)

  • 유재순
    • 지역사회간호학회지
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    • 제10권1호
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    • pp.183-203
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    • 1999
  • High school is regarded as the period when many important physical, mental and social developments occur, and when many health-related behaviors are formed. School health education is one of the major learning resources influencing health potential in the home and community as well as for the individual student. High school health education in Korea has a fundamental systemic flaw however, in that health -related subjects are divided and taught under various subjects at school. In order to achieve quality health education, it is essential to assess the learners' and teachers' educational needs. So far, most of the research projects that had been carried out for improving high school health education were limited to only the learners' educational need. They failed to in elude an educational assessment of the teachers. Therefore, in this study the high school health education teachers' needs relating to health education were investigated through a focus on the teachers' health education activity level, health education activity self-efficacy level, and perceived level of importance in health education content. In this study, research instruments these factors were constructed by Yoo(1997) on the basis of the PRECEDE model. The data for this study were collected from a sample consisting of twenty general and vocational high schools in Seoul and Chongju for a two month period beginning in July, 1996. In analyzing the data, an ANOVA test and stepwise multiple regression were accomplished using an SPSS - PC+ program. The results were as follows: The average level of health education activity and self-efficacy among high school health edu cation teachers were found to be low. But, teachers' perceived importance of health education contents was high. Teachers' activity and perceived importance concerning sex education were lower than in other health education areas. Health education activity of Military drill teachers was higher than that of physical education teachers as well as school nurses. But it was not significant. Health education activity self-efficacy of school nurses was higher than that of other teachers(p<.05). Perceived level of importance of health education contents was the most influential variable in teachers' health education activity. Health education activity self-efficacy level was not an influential variable in teachers' health education activity. The significance of this study is that it has diagnosed the needs of high school health education through the teachers' assessment of a variety of health factors related. These findings suggest that the management of an integrated health education, program requiring large changes in the curriculum of health education is necessary.

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웹 기반 문제중심학습에 대한 학습자의 인식, 성찰수준, 학습활동에 관한 연구 - 간호학 대학원 학생을 중심으로 - (A Study on a Student's General Recognition of Web-Based PBL and Learning Activity of Students by Their Reflective Thinking Level)

  • 이선옥;박영숙
    • 한국간호교육학회지
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    • 제15권2호
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    • pp.194-204
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    • 2009
  • Purpose: Level of reflective thinking of students are important factors in the area of nursing studies on web-based PBL. These factors were used as a component of learning strategies. One was to understand general recognition to web-based PBL and reaction to the use of reflective journal. The other was to investigate the level of reflective thinking was related to learning activity. Method: PBL was adopted for an online course titled 'Nursing Assessment and Intervention'. Twenty graduate students were evaluated from questionnaire, reflective journals, and individual assignments. Result: Web-based PBL was strong for self-directed learning, team activity, creative thinking, diversity of thinking, and diverse process of learning while hard time, lack of cooperation, uncertainty of outcome, and lack of time were considered as weakness. Reflective journal gave moderate help to learning activities. The learners' learning activities was the lowest in the middle level of reflective thinking. Conclusion: Generally, graduate students in college of nursing showed slightly positive attitude to PBL experience and slightly positive reaction to the learning effect of reflective journal. PBL was estimated to be valuable and meaningful. There was no relationship between the level of reflective thinking and learning activities.

대화형 에이전트의 설명 기능과 프라이버시 염려 수준에 따른 사용자 경험 차이에 관한 연구 (A Study on the User Experience according to the Existence of Explanation Facilities and Individuals Privacy Concern Level)

  • 강찬영;최기은;강현민
    • 한국콘텐츠학회논문지
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    • 제20권2호
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    • pp.203-214
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    • 2020
  • 오늘날 스마트 스피커는 점차 개인화되어 사용자들을 위해 특정 제품을 추천하는 추천 에이전트의 역할을 하고 있다. 본 연구의 목적은 스마트 스피커의 대화형 에이전트 맥락에서 '설명 기능'이 투명성, 인지된 신뢰, 사용자 만족도, 재사용 행동 의도, 프라이버시 위협, 추천 품질에 미치는 영향을 살펴보는 것이다. 또한 개인의 프라이버시 염려 수준이 평가에 영향을 미치는지 알아보기 위해 염려 수준을 사용자 구분을 위한 척도로 활용하였다. 연구결과, 설명이 있는 조건이 없는 조건 보다 모든 측정 변인에서 높게 평가되었음을 확인하였고, 프라이버시 염려 수준이 인지된 신뢰, 프라이버시 위협에 미치는 정적인 영향을 확인하였다. 본 연구는 스마트 스피커 맥락에서 설명 기능이 적용될 수 있다는 시사점과 프라이버시 역설 현상을 발견하였으며, 프라이버시 염려 수준에 따른 인지부조화의 가능성을 제시하였다.

일부 보건계열 대학생들의 진로결정자기효능감 및 진로정체감이 취업준비행동에 미치는 영향 (Effect of Career Decision-making Self-efficacy and Career Identity by Health Science College Students on Job Preparation Behavior)

  • 배성숙;노희진;문소정
    • 한국학교ㆍ지역보건교육학회지
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    • 제15권1호
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    • pp.45-59
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    • 2014
  • Objectives: This study is designed to evaluate the influential factors of career decision-making self-efficacy and career identity by health science college students on their job preparation beaviors. Methods: The total 714 questionnaires were distributed to juniors and seniors of health science college, and the result was statistically analyzed through IBM SPSS statistics 20.0. Results: 1. There was no significant difference of job preparation behavior between male students and female students, and while seniors showed highly active job preparation behaviors, those who had high satisfaction level toward their major studies, high academic achievement, and outgoing personality had highly active job preparation behaviors. 2. Students with high satisfaction level toward their major studies, high academic achievement, outgoing personality, and high expected salaries showed high career decision-making self-efficacy level. 3. Students with high satisfaction level toward their major studies, high academic achievement and highly outgoing personality showed high level of career identity. 4. Subsidiary factors of career decision-making self-efficacy were collection of job information, goal setting, planning, and self-assessment, and all of them showed correlation with job preparation behaviors. 5. Among subsidiary factors of career decision-making self-efficacy, "self-understanding" and understanding of job information showed correlation with job preparation behaviors. Conclusion: For improvement on career decision-making self-efficacy and career identity of health science college students, individual support, psychological support, educational support and other supports regarding job employment to provide wide paths and methods for job preparation behaviors are essential, and through various job employment education program and graded counseling, job preparation behaviors shall be promoted as a great strategy.

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BIOLOGICALLY-BASED DOSE-RESPONSE MODEL FOR NEUROTOXICITY RISK ASSESSMENT

  • Slikker, William Jr.;Gaylor, David W.
    • Toxicological Research
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    • 제6권2호
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    • pp.205-213
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    • 1990
  • The regulation of neurotoxicants has usually been based upon setting reference doses by dividing a no observed adverse effect level (NOAEL) by uncertainty factors that theoretically account for interspecies and intraspecies extraploation of experimental results in animals to humans. Recently, we have proposed a four-step alternative procedure which provides quantitative estimates of risk as a function of dose. The first step is to establish a mathematical relationship between a biological effect or biomarker and the dose of chemical administered. The second step is to determine the distribution (variability) of individual measurements of biological effects or their biomarkers about the dose response curve. The third step is to define an adverse or abnormal level of a biological effect or biomarker in an untreated population. The fourth and final step is to combine the information from the first three steps to estimate the risk (proportion of individuals exceeding on adverse or abnormal level of a biological effect or biomarker) as a function of dose. The primary purpose of this report is to enhance the certainty of the first step of this procedure by improving our understanding of the relationship between a biomarker and dose of administered chemical. Several factors which need to be considered include: 1) the pharmacokinetics of the parent chemical, 2) the target tissue concentrations of the parent chemical or its bioactivated proximate toxicant, 3) the uptake kinetics of the parent chemical or metabolite into the target cell(s) and/or membrane interactions, and 4) the interaction of the chemical or metabolite with presumed receptor site(s). Because these theoretical factors each contain a saturable step due to definitive amounts of required enzyme, reuptake or receptor site(s), a nonlinear, saturable dose-response curve would be predicted. In order to exemplify this process, effects of the neurotoxicant, methlenedioxymethamphetamine (MDMA), were reviewed and analyzed. Our results and those of others indicate that: 1) peak concentrations of MDMA and metabolites are ochieved in rat brain by 30 min and are negligible by 24 hr, 2) a metabolite of MDMA is probably responsible for its neurotoxic effects, and 3) pretreatment with monoamine uptake blockers prevents MDMA neurotoxicity. When data generated from rats administerde MDMA were plotted as bilolgical effect (decreases in hippocampal serotonin concentrations) versus dose, a saturation curve best described the observed relationship. These results support the hypothesis that at least one saturable step is involved in MDMA neurotoxicity. We conclude that the mathematical relationship between biological effect and dose of MDMA, the first step of our quantitative neurotoxicity risk assessment procedure, should reflect this biological model information generated from the whole of the dose-response curve.

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유기인계 살충제 Chlorpyrifos 유제 살포액 조제 시 농작업자의 손 노출량 측정 및 위해성 평가 (Hand Exposure of Operator to Chlorpyrifos during Mixing/loading and Risk Assessment)

  • 김은혜;이혜리;정미혜;홍순성;김정한
    • 농약과학회지
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    • 제16권4호
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    • pp.391-394
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    • 2012
  • Chlorpyrifos 유제 살포액 조제 시 작업자의 손 노출량 측정하였으며, 위해성 평가를 실시하였다. 분석기기상의 검출한계는 0.25 ng, 정량한계는 1 ng로 설정하였고, 표준 검량선의 직선성과 분석재현성은 우수하였다. 장갑의 회수율은 72.3-103.4% 이었다. 살포액 조제 시 평균 손 노출은 3.9 mg이었으며, 조제 약량 대비 0.004%이었다. 위해성평가를 하기 위하여 한국 평균 남자 체중, 농작업자노출허용량(AOEL, acceptable operator exposure level) 손 노출량을 비교하였다. 또한 하루 조제 횟수는 8회로 가정하였고, 가장 많이 노출되는 최악의 경우를 확인하기 위하여 30 반복 손 노출량의 75 percentile에 해당하는 노출량(4.6 mg)을 이용하여 위해성 평가 결과 위해성이 낮은 것으로 판단되었으나, 30반복 각각의 위해성 평가 결과 2회는 노출량보다 허용량보다 많아서 위해성이 예상되었다.

Evidence based practice within the complementary medicine context

  • McLean, Lisa;Micalos, Peter Steve;McClean, Rhett;Pak, Sok Cheon
    • 셀메드
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    • 제6권3호
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    • pp.15.1-15.4
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    • 2016
  • Evidence based practice (EBP) is a system of applying the most current and valid high quality evidence to support clinical decision making in a healthcare setting. In the twenty five years since its inception, EBP has become the accepted benchmark for excellence in healthcare. Although the system emerged within the biomedical sciences, in the years since EBP has become normative across all healthcare modalities from dentistry, allied health to complementary and alternative medicine (CAM). Practicing evidence based medicine within any modality potentially offers the patient the best available care based on high quality evidence. Yet it is the nature of the evidence that provokes some questions about the suitability of EBP across all modalities of healthcare. The meta analysis of randomized controlled trial (RCT) stands at the pinnacle of the hierarchy of evidence in EBP. This forms a challenge to CAM due to the difficulty in reducing the elementals of a holistic naturopathic assessment of a patient into an answerable question to be tested within a RCT. On one level this makes EBP paradigmatically incompatible with CAM, yet on another level it presents the opportunity to redefine the parameters of what is considered high level evidence. EBP has become a tool, and at times a weapon wielded by governments and health insurance companies to direct healthcare funding and policy. The implications of the nature of accepted evidence are becoming far reaching. The pursuit of the best available healthcare for each individual is the focus of EBP. However, the injudicious use of this system to direct health policy is fraught with biomedical bias and dominance. This issue raises the challenge to CAM to present high level evidence according to the rules of evidence, or face the annihilation of centuries of empirical knowledge.