• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.30 no.2
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• pp.163-173
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• 2020

Objectives: The study was evaluated exposure variation and daily absorption level of cadmium, lead concentration of ambient air of monthly data from 1999 to 2017 for main exposure factor in outdoor workers. Methods: Based on the monthly data from 'The annual report of air quality in Korea from 1999 to 2018' in 'Air Korea' website in the Korean Ministry of Environment. The monthly data of PM_2.5, PM₁₀, cadmium, lead concentration of ambient air were recalculated to average, minimum, and maximum. And these data were combined to Asian-dust exposure data from 'The annual report of Asian-dust·smog in 2017' of National Institute of Meteorological Sciences in Korea. Results: Geometric mean(minimum-maximum) concentration in ambient air of monthly data were 0.0017 (ND-0.2015) mg/㎥ in cadmium and 0.0467(ND-0.8554) mg/㎥ in Pb from 1999 to 2017. Both of Cd and Pb concentration in ambient air showed the highest concentration in January and the lowest in August among annual variation from 1999 to 2017. PM₁₀ and PM_2.5 level showed the highest in March(PM₁₀) and February (PM_2.5) the lowest in August both of PM₁₀ and PM_2.5. Discussion: Based on exposure data and prior reports, daily Cd absorption was estimated to 0.013(ND-1.511) mg/day from respiration and 1.89 mg/day from daily food(25.2 mg/day of daily Cd intake). In case of Pb, daily absorption was estimated to 0.350(ND-6.416) mg/day from respiration and 1.38-1.71 mg/day from daily food intake. Conclusion: Cd and Pb with Asian-dust have high influential factor to increase the Cd and Pb exposure at Winter and Spring season in outdoor workers.

• Journal of Korean Neurosurgical Society
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• v.30 no.6
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• pp.800-804
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• 2001

The authors reviewed the recent trend of surgical treatment for pediatric as well as adult onset moyamoya disease(MMD). Combined direct and indirect arterial anastomosis or multiple indirect arterial bypasss has been increasing for pediatric MMD and direct arterial bypass is recommended for adult MMD, especially in patients with hemorrhagic MMD. Besides perioperative complications related to the management of MMD and 1999 annual report by the Research Committee on Spontaneous Occlusion of the Circle of Willis(Moyamoya Disease) of the Ministry of Health and Welfare, Japan will be summarizd.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.24
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• pp.10787-10790
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• 2015

Background: Ovarian cancer is an important cause of mortality in women. The aim of this study was to evaluate the incidence and mortality rates and trends in the Iranian population and make predictions. Materials and Methods: National incidence from Iranian annual of National Cancer Registration report from 2003 to 2009 and National Death Statistics reported by the Ministry of Health and Medical Education from 1999 to 2004 were included in this study. A time series model (autoregressive) was used to predict the mortality for the years 2007, 2008, 2012 and 2013, with results expressed as annual mortality rates per 100,000. Results: The general mortality rate of ovarian cancer slightly increased during the years under study from 0.01 to 0.75 and reaching plateau according to the prediction model. Mortality was higher for older age. The incidence also increased during the period of the study. Conclusions: Our study indicated remarkable increasing trends in ovarian cancer mortality and incidence. Therefore, attention to high risk groups and setting awareness programs for women are needed to reduce the associated burden in the future.

• The Korean Journal of Malacology
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• v.26 no.1
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• pp.97-105
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• 2010

Annual gonad development of the rock shell, Thais clavigera distributed in Jeju Port was investigated over a 12 month period from March 1998 to February 1999. Monthly change in gonad development was examined using histology. Gametogenesis of T. clavigera in the study area initiated as early as in October and fully ripe eggs could be observed from May to July. Percent gonad area (PGA) also increased rapidly from May to July then dropped in August when the water temperature remained $22.6-24.5^{\circ}C$, suggesting that rock shell released their eggs during this period. All female rock shell collected during the course of study exhibited pseudo-penis in the head, indicating that a certain level of imposex had progressed in the study site. Relative penis size index (RPSI), an indicator of level of imposex phenomenon varied 59.5-173.4% and this value was relatively higher than the index reported from elsewhere. It was believed that such imposex phenomenon observed in T. clavigera was caused by endocrine disruption by chemical contaminants such as TBTs released from biocidal paints in the port environment.

• Journal of Korean Academy of Nursing Administration
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• v.8 no.3
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• pp.381-392
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• 2002

Purpose : The purpose of this study was to examine the degrees of turnover intention among Korean staff nurses(N=175) and to identify discriminating factors of their turnover intention. Method : The data were driven from a larger study and staff nurses who had worked more than 1 year as nurses were included in the analyses. The original data were collected from May 1999 to March 2000. Descriptive and discriminant analyses were utilized. Results : 87% of the participants reported turnover intention. Nurses were grouped into three group(GP)s depending on the frequencies of turnover intention: Never GP(N=23), Sometimes GP(N=107), Frequent GP(N=43). With three GPs, two functions were produced and only function 1 was significant that significantly discriminated Never and Frequent GPs. Additional discriminant analysis with only Never and Frequent GPs produced function classified 93% of the participants correctly into two GPs. Sub-dimensions of work satisfaction were significant discriminating factors. Nurses who are satisfied with doctor and nurse relationship, pay, and hospital administration tend to report no intention in turnover. Conclusion : Based on the findings of this study, possible managemental intervention for increasing interpersonal skills and assertiveness of nurses, inviting medical residents in ward team meeting, increasing incentives or baseline adjustment of annual income for registered nurses were suggested.

• Journal of Gastric Cancer
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• v.7 no.1
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• pp.47-54
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• 2007

Purpose: To investigate the characteristics and chronological changes of gastric cancer in Korea, the Information Committee of the Korean Gastric Cancer Association performed nationwide survey for 2004. Materials and Methods: The data on patients who underwent gastric cancer surgery in 2004 were collected from 57 institutes and compared with those of 1995 and 1999 which were reported in 2002. Fourteen factors (sex, age, tumor location and size, gross type, approach to operation, radicality, operative method, reconstruction method, WHO and Lauren classification, UICC stage, and numbers of positive and retrieved lymph nodes) were analyzed. According to the annual number of gastric cancer operations, 57 institutes were divided into 4 groups (group 1, <100; 100 ${\leq}$ group 2 < 200 operations; 200 ${\leq}$ group 3 < 500 operations; group 4, ${\geq}500$). Results: Data on 11,293 patients were collected. The sex ratio (M : F) was 2.05 : 1 (7,586/3,705). The mean age was 58.0 years old. The age of highest incidence in both male and female has increased recently. The proportion of early gastric cancer has increased from 28.6% in 1995 and 32.8% in 1999 to 47.4% in 2004. The mean number of retrieved lymph nodes was 34.0 (32.8, 34.0, 36.1, and 32.9 for group 1, 2, 3, and 4 respectively). Conclusion: Early gastric cancer has increased in 2004 compared to 1995 and 1999. Gastric cancer surgery seems to be performed with acceptable quality in view of number of retrieved lymph nodes. These data presented in nationwide survey could be used as a fundamental resource for gastric cancer in Korea.

• The Journal of Korean Society for Radiation Therapy
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• v.12 no.1
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• pp.155-165
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• 2000

This paper is based on the records of researching the patients with cancer in the Chunnam National University Hospital from January 1990 to December 1999 and referred to the Korea Cancer Center Hospital's annual report. The results are as the following : 1. Along the total O.P.D 5,680,284, the patients of therapeutic radiology are 201,367 in $3.55\%$ 2. Among the 12,404 cancer patients, stomach cancer patients are $2,048(16.51\%),\;liver\;cancer\;patients\;are\;1,490(12.01\%),\;lung\;cancer\;patients\;are\;1,418(11.43\%)\;cervix\;and\;uterus\;cancer\;patients\;are\;1,102(8.88\%)$ and sexual ratio of male to female appeared 1.38 : 1 Therefore, male cancer patients are more than female patients. 3. The age distribution of cancer was $2,791(22.50\%)\;by\;55{\sim}64\;age,\;2,582(20.82\%)\;by\;45{\sim}54\;age,\;and\;2,530(20.40\%)\;by\;65{\sim}74\;age.\;Therefore,\;the\;60\%\;of\;all\;cancer\;patients\;were\;45{\sim}75$ ages. 4. Among the 9,815 therapeutic radiology patients, $1,755(17.89\%)\;are\;in\;the\;uterus\;system,\;1,534(15.63\%)\;are\;in\;the\;head\;and\;neck,\;1,519(15.48\%)$ are in the lung. Therefore, the proportion of three kinds of therapeutic radiology patients is about $50\%$. 5. The occupational distributions of 12,404 cancer patients$(90{\sim}99\;year)\;are\;2,795(22.53\%)\;by\;orderly\;farmers,\;2,763(22.28\%)\;by\;house\;wives,\;586(4.71\%)\;by\;businessmen,\;and\;391(3.15\%)$ by public service personnel. Industrial, miners, forest men, soldiers didn't nearly appear. 6. The number of patients of cancer diagnosis was $9,431(76.03\%)\;by\;the\;biopsy\;of\;primary\;region,\;and\;2,201(17.74\%)$ by clinical examination Therefore, those two kinds of methods took a propertion of about $94\%.\;The\;number\;of\;deceases\;on\;departments\;was\;153(32.42\%)\;in\;PD,\;133(28.18\%)\;in\;GI,\;63(13.35\%)$ in GS. Therefore, those three kinds of deceases took a proportion of about $74\%$.

• Journal of Environmental Health Sciences
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• v.46 no.5
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• pp.532-538
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• 2020

Objectives: The study evaluated correlations among monthly PM_2.5, PM₁₀, Cd, Pb concentrations and the number of Asian dust days. Methods: Based on data from 'The annual report on air quality in Korea from 1999 to 2017', concentrations of PM₁₀, PM_2.5, Cd, Pb, and the number of Asian dust days were recalculated to mean, standard deviation, minimum, and maximum. Correlation coefficients were calculated among PM_2.5, PM₁₀, Cd, Pb, and Asian dust days. Results: Asian dust days were correlated only with PM₁₀ among the four factors of PM₁₀, PM_2.5, Cd, and Pb. The four factors of PM₁₀, PM_2.5, Cd, and Pb were very significantly correlated with each other (p<0.01). Their correlation coefficients for PM₁₀ were 0.800 for PM_2.5, 0.823 for Cd, and 0.892 for Pb. PM_2.5 was also correlated strongly with Cd (0.845) and Pb (0.830). Cd had a correlation with Pb of 0.971. The maximums of PM_2.5, PM₁₀, and Pb were shown to exceed the atmospheric environmental standard of Korea, which necessitates national continuous exposure control. Based on exposure data, Asian dust days were thought to be an exposure factor for Cd and Pb. Conclusion: Asian dust might be a factor in Cd and Pb exposure. National exposure controls are required for exposure to PM_2.5, PM₁₀, Cd, and Pb.

• Architectural research
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• v.8 no.1
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• pp.1-7
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• 2006

Various housing measures are needed for the rapidly aging society of Korea. In particular, the welfare policy for the elderly has changed towards the community care. Taking this fact into consideration, it is necessary to have the establishment of a system that offers the elderly appropriate welfare services at their appropriate residence (ageing in place) for the effectiveness of the community care. In this aspect, there are a number of implications to Korea to study merits and demerits of the Health Facilities for the Aged (HFA) in Japan. The society of Japan has been rapidly aging since 1970, and Korea is to face the same situation. As for the data of this study, a total of 2,393 facilities (as of November 1999) mentioned in the annual report of the Japanese Ministry of Health, Labor and Welfare were classified based on types of their establishment: (1) free-standing structures (603 facilities); (2) annexes to hospitals (981 facilities); (3) annexes to welfare facilities (511 facilities); and (4) annexes to clinics (298 facilities). Next, 239 facilities were selected through taking a sample of 10 percent from each type of the HFA mentioned above. This was done through the random sampling method with the computer program of MS EXCEL. The Implications of the results of analyses are as follows. First, most of the health facilities were planned with the scale that was larger than the scale of standard special nursing homes in terms of the total floor area. Precise equations that were to obtain precise results of the scale of the HFA and the appropriate number of residents were obtained through the method of the regression analysis. Korea and Japan have similarities in terms of culture, society and family relations; however, the two countries also have differences in terms of the application of laws on the establishment of houses, hospitals, and welfare facilities. As for planning the scale of the HFA, the realities of Korea should be considered. Second, as for the functional aspect of the HFA with a condition of returning home, the place before and after the HFA showed the pattern of 'from a residential place to a residential place' and 'from a hospital to a hospital.' This reveals a close correlation with the types of the HFAs and operational ways of the facilities. Its cause is considered to be the aspect of the operation and management of the HFA rather than the aspect of its function of providing services in association with medical and health facilities. Therefore, when intermediate welfare facilities are considered in Korea, it is strongly advised to consider the problem of annexes to other facilities and efficiency of sharing of the facilities in terms of its operation and management.

• Journal of Radiation Protection and Research
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• v.24 no.3
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• pp.131-142
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• 1999

By using the Korean demographic data and the modified relative risk projection model given in the Committee on the Biological Effect of Ionizing Radiation (BEIR) report-V under the U.S. National Academy of Science, the radiogenic excess risk in Korean population has been evaluated. On the basis of this risk, a safety goal for the safe operation of domestic nuclear power plants has been further derived in terms of personal dose. The baseline risk of death due to all causes in Korea and the trivial risk level, which the society considers safe, were estimated to be $5.2{\times}10^{-3}$ and $5.2{\times}10^{-6}$, respectively. The radiogenic excess cancer risk in Korea has been estimated to be $5.2{\times}10^{-3}$ for tie case of acute exposure to 0.1 Gy and $3.7{\times}10^{-3}$ for the case of chronic lifetime exposure to 1.0 mGy/y. On the basis of these risks estimate, the resulting safety goal for one year opeation of a reactor was 0.05 mSv, which is quite identical with the ALARA guideline prescribed by the USNRC in the Appendix I, 10CFR50.