• 방사선산업학회지
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• 제17권3호
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• pp.239-256
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• 2023

The classification of the radiation work performed in Korean nuclear power plants (NPPs) must be understood to provide workers with more comprehensive radiation protection. This study used annual reports on occupational exposure to investigate and analyze the similarities and differences in the radiation work performed in Korean NPPs with pressurized water reactors (PWRs) and pressurized heavy water reactors (PHWRs). The results showed that the radiation work performed in Korean NPPs could be classified into three categories. Category 1 contains work at the highest level. This work can be divided into individual tasks belonging to Category 2, which enables the evaluation of the radiation dose during the work. The work in Category 2 consists of tasks from Category 3, which contains basic detailed tasks that are not further subdivided. This study emphasized the need for the systematic management of the radiation work performed in both Korean PWRs and PHWRs, such as the tasks in Category 3, which are similar, with similar working conditions, for PWRs and PHWRs. It also suggested the need to establish a list of radiation work for decommissioning because Kori Unit 1 and Wolsong Unit 1 are currently in permanent shutdown and preparations are being made for their decommissioning.

• Journal of Radiation Protection and Research
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• 제49권3호
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• pp.91-101
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• 2024

Background: The radiation safety regulation system, characterized by its critical and domestically tailored features, encountered unexpected challenges due to coronavirus disease 2019 (COVID-19). Accordingly, each country implemented diverse measures to ensure the continuous efficacy of its regulatory system. This study investigates the responses of five institutions concerning radiation safety, collecting data aiming to enhance preparedness through systematic procedure. Materials and Methods: The data were extracted from official documents or websites of respective regulatory bodies (RBs) that discussed their responses to the radiation safety regulation system from COVID-19. From this data, it was observed that each country responded uniquely based on its specific conditions. Results and Discussion: Due to the repercussions of COVID-19, the regulatory system faced challenges, particularly regarding on-site inspections. In response, many countries published COVID-19 annual reports, with a few set up dedicated websites addressing its impact on the radiation regulatory frameworks. This data observed the distinct and situation-specific approaches adopted by each country in response to the pandemic. Notably, several nations introduced digital technologies into their regulations, including remote systems and online methods, while also customizing their regulatory systems according to respective circumstances. Conclusion: A variety of responses from the national RB regarding the radiation safety regulation system after the outbreak of COVID-19 highlight the importance of crisis preparedness and indicate that the current regulatory system could be enhanced.

• Journal of Preventive Medicine and Public Health
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• 제57권5호
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• pp.421-434
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• 2024

Objectives: Schizophrenia is an organic disease and a severe mental disorder with a relatively high risk of relapse. The rising rate of schizophrenia relapse has motivated researchers and academics to innovate and develop interventions aimed at relapse prevention. This bibliometric study sought to examine the publication trends in schizophrenia relapse prevention from 1973 to 2023, assess the contribution of international collaborations across various journals, identify the most influential authors and articles, and forecast future developments in this field. Methods: The study included 683 articles obtained from the Scopus database, analyzed using VOSviewer software, and visualized with Tableau. Results: Reports of schizophrenia relapse prevention strategies have increased significantly over the last 3 decades. However, fluctuations persist, as evidenced by the annual number of publications ranging from 25 to 40 within the past 5 years. Nevertheless, this increasing trend underscores the sustained interest in this area of research. Regarding contribution size, the United States produced the largest volume of publications on this subject. John M. Kane authored the most articles, while Stefan Leucht exhibited the highest h-index. Frequently used keywords in this field include "relapse AND schizophrenia" AND "prevention." Conclusions: These results represent an important reference for determining the current state of research on schizophrenia relapse prevention and future research directions.

• 한국콘텐츠학회논문지
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• 제12권10호
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• pp.169-177
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• 2012

글로벌 금융위기의 영향으로 세계 각국은 이사보수의 적정성과 투명성의 제고를 위하여 노력을 기울이고 있다. 독일, 미국, 영국, 프랑스, 이탈리아. 일본 등에서는 이미 일정 수준 이상의 상장기업이나 금융기관들이 평균이 아닌 개인별 이사의 보수를 공시하고 있다. 그러나 우리나라의 경우 임원보수공시 제도는 여전히 임원 전체의 보수 총액만을 공시하도록 하고 있으며, 보수 기준이나 책정 절차 등에 대한 공시는 이루어지지 않고 있는 실정이다. 이처럼 불투명한 임원 보수 산정체계를 개선하고자 민주노동당 이정희 의원이 2009년 3월 12일 개별 임원의 보수를 공시하도록 하는 내용의 "자본시장과 금융투자업에 관한 법률 일부개정법률안"을 제시하였다. 재계는 우수인재 영입 위축, 회사의 기밀누설의 우려, 프라이버시 침해와 노사관계 악화 그리고 이사보수의 하향평준화를 가져와 경영자의 경영의욕이 떨어질 것이라는 점 등을 우려해 개인별 이사의 보수를 공개하는 것을 반대하고 있다. 지배주주가 임원보수 명목으로 우회배당하거나 회사 재산을 처분하는 등 사익을 추구할 수도 있기 때문에 이를 견제하기 위해서는 주요 선진국의 입법례처럼 개인별 이사의 보수를 공개하는 것을 강제할 필요가 있다. 이러한 개인별 이사의 보수 공개 의무화를 통하여 주주의 경영자 견제 수단의 하나인 상법 제388조가 유명무실하게 되는 것을 막을 수 있고 이사보수 산정의 투명성과 적정성을 확보할 수 있다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권15호
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• pp.6481-6490
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• 2015

Background: Esophageal cancer (EC) is among the most common malignancies in Eastern Africa, but the occurrence of EC in Sudan has rarely been described in the scientific literature. This paper reports the results of a consecutive case series of all EC patients who visited one of the two public cancer treatment centers in the country in 1999-2012, providing a first description of this disease in a treatment center located in central Sudan. Materials and Methods: Clinical and demographic data for all EC patients who visited the Department of Oncology of the National Cancer Institute at the University of Gezira (NCI-UG) from 1999 to the end of 2012 were abstracted and tabulated by sex, tumor type and other characteristics. Results: A total of 448 EC patients visited NCI-UG in 1999-2012, and the annual number of EC cases increased steadily from 1999. Squamous cell carcinoma (SCC) was the predominant EC tumor type (90%), and adenocarcinoma (ADC) was reported in 9.4% of the EC cases. The overall male-to-female ratio for EC was 1:1.8, but the ratio was tumor type-dependent, being 1:2 for SCC and 2:1 for ADC. Only 20% of EC patients reported having ever used tobacco and/or alcohol, and the vast majority of these patients were male. At the time of EC diagnosis, 47.3% of the patients resided in Gezira State. Some EC patients from Gezira State seek out-of-state treatment in the national capital of Khartoum instead of visiting NCI-UG. Conclusions: The annual number of EC patients visiting NCI-UG has increased in recent years, approximately half of these patients being from Gezira State. Although this consecutive series of EC patients who visited NCI-UG was complete, it did not capture all EC patients from the state. A populationbased cancer registry would provide more complete data required to better understand EC patterns and risk factors.

• Journal of the Korean Wood Science and Technology
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• 제43권6호
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• pp.777-783
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• 2015

이방성 물질인 목재는 방향별로 나타나는 세포종류, 크기, 배열에 따라 경도, 성질, 치수변화등 서로 다른 성질을 나타낸다. 또한 사용용도에 따라 다양한 형태로 이용할 수 있는 재료이다. 그러나 동일수종의 목재 내에서도 변이성이 나타나기 때문에 각각의 고유성질과 용도에 대해 정확히 파악하고 이론 및 기술 등의 정립을 통해 재료 이용의 극대화를 위한 연구가 필요하다. 목재의 물리적 특성 및 밀도와 탄성계수의 관계에 관한 연구는 국내외로 다양하게 이루어져 왔으나 대부분 규격화된 시편으로 얻은 값을 통해 상관관계를 분석해왔으며 목재 완제품에 적용한 연구가 거의 없는 실정이다. 또한 야구배트에 대한 진동거동 및 타격에 관한 논문은 많이 있으나 목재 배트를 재료로서 물성을 분석한 연구가 미비한 실정이므로 이와 관련된 연구가 필요하다. 본 연구에서는 캐나다산 경단풍나무로 제작한 배트의 실제완제품을 이용하여 소재물성을 파악하고 주파수 비교를 통해 탄성계수를 분석하고자 한다. 소재물성 비교를 위해 배트의 연륜분포와 밀도 등 기초물성을 조사하였고 공진주파수와 관계식(ASTM C1259)을 통해 탄성계수를 산출하여 재료의 반발력을 산출하였다. 공진주파수 증가에 따른 연륜분포 비교에서 감소하는 경향을 나타냈다. 섬유방향에 따른 가진 각도별 비교에서 섬유방향과 수직한 $0^{\circ}$ 방향으로 가진할 때보다 수평한 $90^{\circ}$ 방향으로 가진할 때 탄성계수 값이 높게 나타났다.

• Asian Pacific Journal of Cancer Prevention
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• 제17권7호
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• pp.3117-3122
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• 2016

Background: Health-care research is a neglected discipline in Pakistan and research related to esophageal cancer (ranks 9th in Pakistani males and 5th in females) is no exception in this regard. Particularly, there are no data available to delineate the overall status of esophageal cancer epidemiological studies in Pakistan. This study describes the first ever effort to make a systematic quantification, in an attempt to provide a road-map to all stakeholders for designing appropriate epidemiological, diagnostic and therapeutic strategies. Materials and Methods: International (PubMed, ISI Web of Knowledge) and local (PakMedinet) scientific databases as well as Google search engine were searched using specified keywords to extract relevant publication. Well-defined inclusion criteria were implemented to select publications for final analyses. All data were recorded by at least 3 authors and consensus data were entered into and analyzed for descriptive statistics (such as frequencies, percentages and annual growth rates) using Microsoft Excel and SPSS software. Results: A total of 79 publications fulfilled the inclusion criteria including 20 publications for which full texts were not available. Of the 79 publications, 59 (74.6%) were original/research publications, 5 (6.3%) were case reports, 4 (5.1%) were research communications, 2 (2.5%) were review articles, 1 was (1.2%) correspondence and 8 (10.1%) were undefined categories. Only 13 (<20%) cities of Pakistan contributed towards the 79 publications. On average, only 1.9 relevant publications/year were published from 1976 (year of first publication) to the present. Alarmingly, a decline in the annual growth at -4.1% was recorded in the last six years. Conclusions: Esophageal cancer research is largely unfathomed in Pakistan. Urgent/dramatic steps are required by all concerned to address this common (and under reported) cancer of Pakistan.

• 한국항만경제학회지
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• 제28권1호
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• pp.143-157
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• 2012

물류기업은 가장 저렴한 원가구조를 갖는 지역에 생산, 물류거점 기지를 운영하며 세계시장을 대상으로 제품을 매매하는 경영방식을 선택하고 있다. 물류네트워크 상에서 물류창고는 적절한 위치에서 적절한 시기에 효과적으로 운영하므로 부가가치를 창출하여 효율성 제고를 통한 경쟁력 강화방안이 FTA에 대한 대응방안이 되고 있다. 물류기업은 물류창고의 역량을 강화하기 위하여 구조적 경쟁력 방안을 강화하므로 국내의 물류창고의 운영 효율성과 생산성 취약하므로 효율성과 생산성 분석은 의미가 있다. 본 연구에서는 2005년-2009년까지 지역별 물류창고 효율성 분석을 하였으며 동태적 안정성검증에서는 서울특별시, 부산광역시, 대구광역시, 전라북도가 안정적이며 생산성 변화를 측정한 결과는 광주광역시와 제주도의 경우 4기간 평균 생산성지수는 각각 2.553과와 2.602로 생산성이 약 255%와 260% 증가하였다. Catch-up 분석 해석 결과는 대전광역시, 전라북도, 경상남도 경영상 효율성의 악화가 이루어졌으며 Frontier 분석 해석결과는 서울특별시가 가장 낮고 광주광역시가 높은 기술진보가 이루어졌음을 알 수 있다.

• 한국환경생태학회지
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• 제24권2호
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• pp.186-193
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• 2010

2006~2008년 동안 새만금 간척지에서 조성된 인공 염생식물 군락지와 새만금 방조제 배수갑문 수위 관리의 연관성을 밝히기 위해 배수갑문 수위특성 및 사유, 염생식물 군락지의 공간적인 분포와 형성 과정, 수위변화에 따른 염생식물 분포공간분석을 시도하였다. 배수갑문 수위조절의 특성을 분석한 결과, 파종 후 생장기의 평균수위와 연평균 수위와의 차이는 유사했으며, 연간 최저수위 및 최고수위가 파종 후 생장기에 나타났다. 3년동안 4,315만$m^2$에 염생식물 군락지가 형성되었으며 총 2,673만$m^2$에 대해 인공적인 염생식물 군락 조성이 시도되어 291만$m^2$을 제외한 표고 약 1m 이상의 2,382만$m^2$(89.1%)에 염생식물 군락지가 형성된 것으로 추정되었다. 파종지역 염생식물 군락지 형성에서 해수의 평균수위나 최저수위보다도 최고수위가 결정적인 요인으로 작용하였으며, 경운 및 토양 피막 여부가 군락지 형성의 2차적인 요인으로 작용한 것으로 보인다.

• 농촌의학ㆍ지역보건
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• 제19권1호
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• pp.31-39
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• 1994

We carried out this study by analyzing the annual reports, surveyed by medical college student(Ewha Woman's University) through the medical records of new patients of Su-Dong Myon Health Subcenter from 1982 to 1992, and the specific survey data of 247 in Su-Dong Myon area which consists of 5,454 population and 1,651 household(43.6% farm household), in December, 1993. Results were as follows: 1) The number of population in Su-Dong Myon is 5,265 in 1982, 4,905 in 1984, 4,885 in 1986, 4,820 in 1988, 4,663 in 1990, 5,454 in 1992. 2) Since 1982, the annual utilization rate of a rural health subcenter showed decreasing tendency: such as 609(the highest rate) per 1,000 inhabitants in 1982, 485 in 1984, 525 in 1985, 281 in 1988, 316 in 1990 and 197 in 1992. The utilization rate by sex was decreasing chronologically in male, and age-specific utilization rate showed rapidly decreasing tendency since 1982 : 1,037 per 1,000 inhabitants in 1982, 877 in 1984, 1,084 in 1986, 519 in 1988, 538 in 1990 and 333 in 1992, in age group of 0-14, but not changing tendency in age-groups of 65 and over. 3) The monthly utilization rate of a rural health subcenter showed increasing tendency in March, July and August from 1982 to 1987, and in March and May from 1988 to 1992. 4) The patient rate of medical insurance showed increasing tendency since 1983: 17.0% per 100 patients(the lowest rate) in 1983, 21.3% in 1985, 20.4% in 1987, 70,0% in 1989 and 77.8% in 1991. However, the patient rate of Medicaid showed no specific change. 5) The utilization rate by the remedial measures for primary health care showed 30.8% of the answered in private special clinic, the highest rate, and 30.0% in drug stores, 25.5% in health subcenter, 10.5% in hospital and 1.2% in oriental clinic. In favorite physicians for primary health care, specialist was the highest rate, 48.6% of the answered, and general practitioner, 39.7% and home doctor, 8.9% in next order. And 70.8% of the answered experienced to visit the health subcenter more than once. 6) Disfavorite reasons of health subcenter were insufficient equipment(42.1%, the highest), and the next order, short cure time per day(25.1%), "be not cured"(12.2%), "be not(6.9%) and unkindness(3.6%), And the major obstacles in utilizing the medical facilities for primary health care were farm works(41.7%, the highest), distance(27.1%) and medical cost(11.4%).