• Safety and Health at Work
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• 제14권1호
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• pp.17-30
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• 2023

The human reproductive system can be affected by occupational exposure to many physical and chemical risk factors. This study was carried out to review the studies conducted on the issue of the pathophysiological effects of occupational physical and chemical risk factors on the reproductive system of females and males. In this systematic review, the databases such as "Google Scholar," "Pub-Med," "Scopus," and "Web of Science" were used. Following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA 2020), the studies included in our study were published between 2000 and 2021. In order to extract the required data, all sections of the articles were reviewed. Out of 57 articles we reviewed, 34 articles were related to field studies and 23 articles to clinical studies. Among them, 43 studies dealt with the pathophysiological effects of chemical agents, six studies dealt with the pathophysiological effects of physical factors, and 8 studies dealt with the pathophysiological effects of physicochemical factors on the human reproductive system. Physical (noise, heat, and radiofrequency radiation) and chemical (such as carbamate and organophosphate pesticides, benzene, toluene, xylene, formaldehyde, NO2, CS2, manganese, lead, nickel, and n-hexane) risk factors had pathophysiological effects on the human reproductive system. The presence of these risk factors in the workplace caused damage to the human reproductive system. The rate of these negative pathophysiological effects can be reduced by performing appropriate managerial, technical, and engineering measures in work environments.

• 무역학회지
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• 제43권5호
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• pp.179-201
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• 2018

각 국은 소비자의 알 권리와 선택권을 보장하기 위해 식품표시제도를 의무화한다. 그리고 이러한 각국의 식품표시정책을 수립함에 있어 국제협약 또는 협정에 가입되었다면 이는 모든 서명국에 부과되는 의무라는 복잡한 네트워크에 연결된다. 또한 식품표시제도는 국제무역에 비관세장벽으로 적용할 수 있어 각 국이 식품표시제도를 도입함에 있어 다자적 조화가 필요하며 이를 위해 GATT 20조, SPS, TBT 협정이 적용될 수 있을 것이다. GM식품(Genetically Modified foods)의 안전성과 관련하여서는 여전히 논란이 여전히 끊이지 않고 있다. 더욱이, 우리나라가 GMO를 가장 많이 수입하는 국가라는 사실을 고려한다면 GM식품의 유해성을 차치하더라도 GM식품 관련 표시제도의 명확화 및 GM식품의 혼입기준에 대한 명확한 제시는 소비자들로 하여금 식품 선택에 있어 혼란을 해소할 수 있을 것이다. 따라서 본 논문은 GM식품에 대한 다자적·국내법적 고찰을 통해 우리나라 국내법에서 인용가능한 GM식품관련 법 및 주요 무역국의 국내법을 살펴봄으로써 우리나라 GM식품 표시방법에 대한 개선방안을 제시하고 한다.

• 의학교육논단
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• 제25권2호
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• pp.84-101
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• 2023

Longitudinal data can provide important evidence with the potential to stimulate innovation and affect policies in medical education and can serve as a driving force for further developments in medical education through evidence-based decisions. Tracking and observing cohorts of students and graduates using longitudinal data can be a way to link the past, present, and future of medical education. This study reviewed practical methods and technical, administrative, and ethical considerations for the establishment and operation of a longitudinal database and presented examples of longitudinal databases. Cohort study design methods and previous examples of research using longitudinal databases to explore major topics in medical education were also reviewed. The implications of this study are as follows: (1) a systematic design process is required to establish longitudinal data, and each university should engage in ongoing deliberation about this issue; (2) efforts are needed to alleviate "survey fatigue" among respondents and reduce the administrative burden of those conducting data collection and analysis; (3) it is necessary to regularly review issues of personal information protection, data security, and ethics regarding the survey respondents; and (4) a system should be established that integrates and manages a longitudinal database of medical education at the national level. The hope is that establishing longitudinal data and cohorts at individual medical schools will not be a temporary phenomenon, but rather that they will be well utilized at the national level to innovate and implement ongoing changes in medical education.

• 한국비블리아학회지
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• 제20권4호
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• pp.159-172
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• 2009

전자자원 수집과 관리 영역에 있어서의 발전과 함께 과학기술분야를 필두로 하는 학술 정보자원의 급격한 가격 상승은 전자자원 관리에 있어서의 협력의 필요성을 증진시키고 있다. 이에 따라 많은 국가들이 대학 및 연구도서관을 중심으로 하여 국가차원의 전자형태 학술 정보원의 효율적 수집과 관리를 위한 협력을 기반으로 한 레포지토리 형태의 학술정보자원 관리 프로그램을 운영하고 있다. 우리나라에서도 각 영역별 학술정보 관리를 위해 협력형 전자자원 관리 프로그램의 구축을 위한 노력이 경주되고 있다. 이러한 맥락에서 이 연구에서는 NSDL, NTIS, Intute, 그리고 ARROW를 사례로 하여 현재 구축되어 있는 협력형 레포지토리의 다양한 유형들을 중심으로 온라인 정보접근 및 검색경로를 포괄하는 국가차원 혹은 지역 단위의 협력형 레포지토리의 주요 구축 배경과 장서구성 현황을 일별하였다. 그리고 e-metrics 프로젝트들에서 제시하고 있는 측정지표들을 종합적으로 검토한 후, 이를 기반으로 협력형 레포지토리가 구축하고 있는 전자자원을 평가하기 위한 평가 요소들을 도출하여 보았다.

• International Journal of Computer Science & Network Security
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• 제23권7호
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• pp.79-90
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• 2023

Leadership development corresponds to the focus on the individual's success and competitiveness strategy. This is the optimal direction of the organization of attitude development because it covers two aspects of the student's personality development, professionally-oriented and self-centric. The aim of the study is to identify and compare the leadership level in second-and fourth-year students to see dynamics of development and implementation of the leadership phenomenon in the professional and personal making up of future specialists. Based on the theoretical analysis of the issue, the authors developed an objective and subjective diagnostic model for leadership skills. In this study, data of the objective diagnostic technique are the key. Subjective diagnostic technique for leadership skills provides insights for problem interpretation. At the level of the first group of respondents, the average Leadership Skills Level of the second-year students was quite low and was found within the medium level. The second group of respondents consisting of the fourth-year students showed a slight but effective improvement. The Leadership Skills of this group were found at a sufficient level. Positive dynamics was revealed for all criteria of leadership skills as a result of applying objective diagnostic methods: decreased percentage of students with negative and relatively low markers of Leadership Skills Level and corresponding increase in percentage of applicants with positive markers of Leadership Skills Level. Further research can be organized in the direction of identifying and developing successful universal and professionally-oriented tactics for leadership development in students as part of attitude development.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.359-366
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• 2013

Although many research efforts have been conducted to address the effect of crew members' work skills (e.g., technical and planning skills) on work performance (e.g., work duration and quality) in construction projects, the relationship between skill and performance has generated a great deal of controversy in the field of management (Inkpen and Crossan 1995). This controversy can lead to under- or over-estimations of the overall project schedule, and can make it difficult for project managers to implement appropriate managerial policies for enhancing project performance. To address this issue, the following aspects need to be considered: (a) work performances are determined not only by individual-level work skill but also by the group-level work skill affected by work team members, each member's role, and any working behavior pattern; (b) work planning has significant effects on to what extent work skill enhances performance; and (c) different types of activities in construction require different types of work, skill, and team composition. This research, therefore, develops a system dynamics (SD) model to analyze the effects of both individual-and group-level (i.e., multi-level) skill on performances by utilizing the advantages of SD in capturing a feedback process and state changes, especially in human factors (e.g., attitude, ability, and behavior). The model incorporates: (a) a multi-level skill evolution and relevant behavior development mechanism within a work group; (b) the interaction among work planning, a crew's skill-learning, skill manifestation, and performances; and (c) the different work characteristics of each activity. This model can be utilized to implement appropriate work planning (e.g., work scope and work schedule) and crew management policies (e.g., work team composition and decision of each worker's role) with an awareness of crew's skill and work performance. Understanding the different characteristics of each activity can also support project managers in applying strategic work planning and crew management for a corresponding activity, which may enhance each activity's performance, as well as the overall project performance.

• 분석과학
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• 제36권5호
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• pp.236-249
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• 2023

Carbon dioxide (CO₂) capture and storage is a critical issue for mitigating climate change. Porous aromatic Schiff base complexes have emerged as a promising class of materials for CO₂ capture due to their high surface area, porosity, and stability. In this study, we investigate the potential of Schiff base complexes as an effective media for CO₂ storage. We review the synthesis and characterization of porous aromatic Schiff bases materials complexes and examine their CO₂ sorption properties. We find that Schiff base complexes exhibit high CO₂ adsorption capacity and selectivity, making them a promising candidate for use in carbon capture applications. Moreover, we investigate the effect of various parameters such as temperature, and pressure on the CO₂ adsorption properties of Schiff base complexes. The Schiff bases possessed tiny Brunauer-Emmett-Teller surface areas (4.7-19.4 m²/g), typical pore diameters of 12.8-29.43 nm, and pore volumes ranging from 0.02-0.073 cm³/g. Overall, our results suggest that synthesized complexes have great potential as an effective media for CO₂ storage, which could significantly reduce greenhouse gas emissions and contribute to mitigating climate change. The study provides valuable insights into the design of novel materials for CO₂ capture and storage, which is a critical area of research for achieving a sustainable future.

• 농촌계획
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• 제29권4호
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• pp.35-53
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• 2023

This study attempts to identify the flow of key topics and issues of research trends related to environment-friendly agriculture conducted around the 2000s in South Korea and compare them with the environment-friendly agriculture promotion plan to seek the level of consistency and the direction of future development of environment-friendly agriculture. For the analysis of environment-friendly agriculture research trends and policy consistency, 'topic modeling', which is suitable for subject classification of large amounts of unstructured data, and 'text network analysis', which visualizes the relationship between keywords as a network and interprets its characteristics, were utilized. Overall, active discussions were held on 'technical discussions for the production and cultivation of environment-friendly agricultural products' and 'food safety & consumer awareness', and keywords such as production, cultivation, consumption, and safety were consistently linked to other keywords regardless of time. In addition, it was found that the issue of environment-friendly agriculture was partially consistent with the policy direction of the period. Considering the fact that the ongoing '5th Environment-Friendly Agriculture Promotion Phase' emphasizes the strengthening of rural environment management and aims to ensure the continuous quantitative and qualitative development of environment-friendly agriculture, active discussions and research on its environmental contributions and management methods are needed.

• 한국컴퓨터정보학회논문지
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• 제29권7호
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• pp.117-128
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• 2024

본 연구에서는 블록체인 및 분산원장 기술에 기반한 새로운 상품인 토큰 증권에 대한 사업화와 관련하여 시장 및 법제도화의 불확실성이 높은 상황에서 활용 가능한 리걸 디자인 기법을 통해 우선순위 과제를 도출하는 과정을 제안하였다. 토큰 증권의 발행 및 유통을 위해 혁신금융서비스 (금융규제 샌드박스)를 신청한 참여자들을 대상으로 리걸 디자인 워크샵을 진행하여 각자의 이해관계를 조율하고 법적, 기술적 측면을 감안한 준비 사항들을 논의하여 향후 추진 과제들에 대한 우선순위 도출이 가능한지 검증하였다. 리걸 디자인 기법은 불확실한 환경에서 이해관계자들이 상호간 이해증진에 기반하여 입장 차이와 이견을 확인하고 조정하여 최대한 합의된 방향을 도출하게 해주는데 주요 단계들로는 상호 공감 과정인 'Family Therapy', 문제 정의를 위한 'N whys', 그리고 문제 해결을 위한 발상 단계인 'Speculative Scenario Design'으로 구성되고 이는 사용자 중심의 사고방식에 기반한 디자인 씽킹과 구별되는 특징이다. 리걸 디자인 기법 특성상 다양한 이해관계자들이 참여하고 상호간 대립 의견에 대한 조율이 필요할 수 있는데 리걸 디자인 워크샵 준비 및 진행에 있어서 퍼실리테이터 (Facilitator)의 역할이 중요한 대목이다.

• 지능정보연구
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• 제25권3호
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• pp.1-17
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• 2019

빅데이터 시대에 정보의 양이 급증하고, 그중 많은 부분을 차지하는 문자열 정보를 정량화하여 의미를 찾아 낼 수 있는 인공지능 방법론이 함께 발전하면서, 텍스트 마이닝을 통해 주가 예측에 적용해 온라인 뉴스로 주가를 예측하려는 시도가 다양해지고 있다. 이러한 주가 예측의 방법은 대개 예측하고자 하는 기업의 뉴스로 주가를 예측하는 방식이다. 하지만 특정 회사의 뉴스만이 그 회사의 주가에 영향을 주는 것이 아니라, 그 회사와 관련성이 높은 회사들의 뉴스 또한 주가에 영향을 줄 수 있다. 그러나 관련성이 높은 기업을 찾는 것은 시장 전반의 공통적인 영향과 무작위 신호 때문에 쉽지 않다. 따라서 기존 연구들은 주로 미리 정해진 국제 산업 분류 표준에 기반을 둬 관련성이 높은 기업을 찾았다. 하지만 최근 연구에 따르면, 국제 산업 분류 표준은 섹터에 따라 동질성이 다르며, 동질성이 낮은 섹터는 그들을 모두 함께 고려하여 주가를 예측하는 것이 성능에 악영향을 줄 수 있다는 한계점을 가진다. 이러한 한계점을 극복하기 위해, 본 논문에서는 주가 예측 연구에서 처음으로 경제물리학에서 주로 사용되는 무작위 행렬 이론을 사용하여 시장 전반 효과와 무작위 신호를 제거하고 군집 분석을 시행하여 관련성이 높은 회사를 찾는 방법을 제시하였다. 또한, 이를 기반으로 관련성이 높은 회사의 뉴스를 함께 고려하며 다중 커널 학습을 사용하는 인공지능 모형을 제시한다. 본 논문의 결과는 무작위 행렬 이론을 통해 시장 전반의 효과와 무작위 신호를 제거하여 정확한 상관 계수를 찾아 군집 분석을 시행한다면 기존 연구보다 더 좋은 성능을 보여 준다는 것을 보여준다.