• 한국과학교육학회지
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• 제26권5호
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• pp.620-636
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• 2006

The purpose of this study was to analyze one science teacher's understanding of student argumentation and his explicit teaching strategies for implementing it in the classroom. One middle school science teacher, Mr. Field, and his students of 54 participated in this study. Data were collected through three semi-structured interviews, 60 hours of classroom observations, and two times of students' lab reports for eight weeks. Coding categories were developed describing the teacher's understanding of scientific argumentation and a description of the main teaching strategy, the Claim-Evidence Approach, was introduced. Toulmin's approach was employed to analyze student discourse as responses to see how much of this discourse was argumentative. The results indicated that Mr. Field defined scientific inquiry as the abilities of procedural skills through experimentation and of reasoning skills through argumentation. The Claim-Evidence Approach provided students with opportunities to develop their own claims based on their readings, design the investigation for evidence, and differentiate pieces of evidence from data to support their claims and refute others. During this approach, the teacher's role of scaffolding was critical to shift students' less extensive argumentation to more extensive argumentation through his prompts and questions. The different level of teacher's involvement, his explicit teaching strategy, and the students' scientific knowledge influenced the students' ability to develop and improve argumentation.

• Safety and Health at Work
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• 제14권4호
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• pp.406-414
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• 2023

Background: This study examined age-group differences in the rate, severity, and cost of injuries among construction workers to support evidence-based worker safety and health interventions in the construction industry. Methods: Ohio workers' compensation claims for construction workers were used to estimate claim rates and costs by age group. We analyzed claims data auto-coded into five event/exposure categories: transportation incidents; slips, trips, and falls (STFs); exposure to harmful substances and environments; contact with objects and equipment (COB); overexertion and bodily reaction. American Community Survey data were used to determine the percentage of workers in each age group. Results: From 2007-2017, among 72,416 accepted injury claims for ~166,000 construction full-time equivalent (FTE) per year, nearly half were caused by COB, followed by STFs (20%) and overexertion (20%). Claim rates related to COB and exposure to harmful substances and environments were highest among those 18-24 years old, with claim rates of 313.5 and 25.9 per 10,000 FTE, respectively. STFs increased with age, with the highest claim rates for those 55-64 years old (94.2 claims per 10,000 FTE). Overexertion claim rates increased and then declined with age, with the highest claim rate for those 35-44 years old (87.3 per 10,000 FTE). While younger workers had higher injury rates, older workers had higher proportions of lost-time claims and higher costs per claim. The total cost per FTE was highest for those 45-54 years old ($1,122 per FTE). Conclusion: The variation in rates of injury types by age suggests that age-specific prevention strategies may be useful.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.57-66
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• 2022

Claims and disputes are major causes of cost and schedule overruns in the construction business. In order to manage claims and disputes effectively, it is necessary to analyze various types of contract documents punctually and accurately. Since volume of such documents is so vast, analyzing them in a timely manner is practically very challenging. Recently developed approaches such as artificial intelligence (AI), machine learning algorithms, and natural language processing (NLP) have been applied to various topics in the field of construction contract and claim management. Based on the systematic literature review, this paper analyzed the goals, methodologies, and application results of such approaches. AI methods applied to construction contract management are classified into several categories. This study identified possibilities and limitations of the application of such approaches. This study contributes to providing the directions for how such approaches should be applied to contract management for future studies, which will eventually lead to more effective management of claims and disputes.

• 산업경영시스템학회지
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• 제28권4호
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• pp.102-108
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• 2005

Single PPM Quality Innovation Movement is originally developed quality program in Korea for supplier's quality level-up since 1995. The quality target is below the 10ppm(parts per million) in outgoing quality and delivered goods plus field claim. Recently 1,053 companies is received Single PPM Quality Certification from government. This quality program is to realized the anticipated results not only duality level's increasing, but also company's confidence, competitiveness. We were able to obtain participations of 75 questionnaire, and derived statistics by means of SPSS/PC version 10.0. In this study, we find the bottleneck factor for promotion and upgrade S-PPM, and suggest a way out of difficulties.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.341-344
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• 2002

건설시장의 개방 분위기와 더불어 클레임에 대한 부정적 시각의 변화로 인해 국내 건설업계에도 클레임의 제기가 조금씩 증가하고 있는 추세이다. 그러나 아직도 국내 건설업계는 발주자 우위의 오랜 관행으로 인해 많은 클레임요인이 잠재적으로 내재해 있는 상태이며, 이러한 요인들이 관리 및 해결되지 않으면 앞으로 많은 건설분쟁이 발생하리라는 것은 분명한 사실이다. 이에 본 논문은 국내 아파트공사를 대강으로 클레임요인을 조사한 후 설문분석을 통해 클레임요인들이 공기, 원가, 품질과 같은 공사관리항목에 미치는 영향도를 분석하여 가장 먼저 개선되어야 할 클레임요인들을 도출하였으며, 이러한 클레임요인이 발생되는 원인을 관련 계약조항 상에서 찾아 문제점을 지적하고, 예방대책을 제시하였다.

• 한국신뢰성학회:학술대회논문집
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• 한국신뢰성학회 2000년도 춘계학술대회 발표논문집
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• pp.153-160
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• 2000

현장 클레임 데이터는 제품의 불량이 어디에서 발생하는지 그리고 어떻게 개선해야 하는지를 가르쳐 주는 동시에 이를 이용하여 사용환경에서 제품의 신뢰성을 분석할 수 있는 소중한 자료이다. 본 연구에서는 클레임 데이터를 이용한 신뢰성 분석 방법을 바탕으로 주방용 전자기기의 하나인 가스오븐레인지(GOR)의 신뢰성 분석 절차를 구축하고 이를 적용하여 평균수명 등의 신뢰성 관련 제품 특성치를 분석하고자 한다.

• Journal of Oral Medicine and Pain
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• 제30권2호
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• pp.215-230
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• 2005

이 조사논문은 건강보험 중 구강요양급여의 청구 및 심사등과 관련하여 일선 개원치의들의 견해를 조사하고, 보험관련정책수립에 개원치의들의 의견을 적극 반영코자 하는데 그 의의를 두고 있다. 본 조사는 2004년 2월경에 부산광역시 경남일대에 개원하고 있는 1,465명의 개원치의를 대상으로 설문조사를 실시하여 이들 중에서 406명으로부터 답변을 얻었고, 그 내용은 아래와 같이 요약할 수 있다. 1. 청구업무와 관련된사항 : 보험청구의 담당은 대체로 치과위생사(간호조무사)와 치과의사의 직접청구방식이 많았다. 대행청구는 그 비중이 전체에서 20%미만을 차지했다. 2.보험강좌의 참여도 : 보험강좌에 대한 관심은 비교적 저조한 것으로 나타났다. 3.이의신청유무 : 보험청구에 관련한 이의신청 유무는 엇비슷하게 나타났다. 4. 건강보험 심사규정에 관한 개원치의들의 견해 : 현재의 진료비 심사규정 지침에 대한 개원치의들의 생각을 묻는 질문에 대한 응답으로는 "심사기준이 난해하고 부당한 삭감이 많은 것 같다"는 응답이 압도적으로 많았다. 5. 건강보험심사평가원과 관련한 사항 : 약 70%의 개원치의들은 건강보험심사평가원으로부터 자율지도라는 명분하에 이루어지는 대화방식에 불만을 표시했다. 6. 진료비 영수증 발급에 대한 개원치의들의 입장 : 약 70%의 개원치의들은 진료비 영수증 발급에 여려움을 겪고 있었다. 7. 건강보험 비급여 진료분야의 급여적용에 관한 사항 : 대다수의 개원치의들은 전악 스켈링처치와 치면열구전색처치 및 불소도포와 같은 예방치료에 대해서는 급여적용을 희망하였다. 노인틀니, 귀금속을 제외한 보철치료, 광중합레진치료 등에 관하여는 비급여적용을 희망하였다.

• Archives of Plastic Surgery
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• 제43권3호
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• pp.278-283
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• 2016

Background Disputes regarding medical malpractice occur between practitioners and patients. As patients have become increasingly aware regarding medical care, an increase in the unexpected side effects of procedures has been observed, thereby leading to an increase in disputes regarding medical malpractice. In this study, we reviewed trends in precedents involving cosmetic surgery-related medical disputes, with the goal of helping to prevent unnecessary disputes in the future. Methods We conducted a search of the judgments made in South Korean courts between 2000 and 2013 that were related to the field of plastic surgery. A total of 54 judgments were analyzed, and the selected precedents were reviewed and classified according to the kind of negligence involved. Results The claim amounts ranged from under 8 million KRW (6,991 USD) to 750 million KRW (629,995 USD). The most common ratio of the judgment amount to the claim amount was 20%-30%. The judgments were classified according to the following categories: violation of the duty of explanation in 17 cases (29%), violation of the duty of care in 10 cases (17%), violation of both duties in 20 cases (35%), and no violation of duty in six cases (10%). Conclusions Cosmetic surgery-related suits require different approaches than general malpractice suits. The Supreme Court requires plastic surgeons to determine the type, timing, methods, and scope of their treatments when considering possible results. Therefore, practitioners should be educated on their rights and responsibilities to enable them to cope with any possible medical dispute that may arise.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2002년도 춘계공동학술대회
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• pp.762-766
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• 2002

This paper proposes a method or estimating lifetime distribution for products under two-dimensional warranty in which age and usage are used simultaneously to determine the eligibility of a warranty claim. For such a case, existing methods reduce the two-dimensional time stale to a single stale assuming that the two variables have a functional relationship. This assumption is, however, not appropriate since the functional relationship is unknown in practice. In this paper, the field age and usage data are modeled with a bivariate lifetime distribution. Method of obtaining maximum likelihood estimators is outlined, their asymptotic properties are studied and specific formulas for a bivariate Weibull distribution are obtained. The proposed model is compared with the existing one which assumes a lineal relationship between the two variables Simulation studios are performed to investigate the effect of the degree of dependency between the two variables.

• International Journal of Reliability and Applications
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• 제4권2호
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• pp.79-95
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• 2003

Manufacturers collect and analyze field reliability data to enhance the quality and reliability of their products and to improve customer satisfaction. To reduce the data collecting and maintenance costs, the amount of data maintained for evaluating product quality and reliability should be minimized. With this in mind, some industrial companies assemble warranty databases by gathering data from different sources for a particular time period. This “marginal count failure data” does not provide (i) the number of failures by when the product entered service, (ii) the number of failures by product age, or (iii) information about the effects of the operating season or environment. This article describes a method for estimating age-based claim rates from marginal count failure data. It uses covariates to identify variations in claims relative to variables such as manufacturing characteristics, time of manufacture, operating season or environment. A Poisson model is presented, and the method is illustrated using warranty claims data for two electrical products.