• 한국산업보건학회지
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• 제29권1호
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• pp.57-68
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• 2019

Objective: The purpose of this study is to propose the benefits of reduction measures according to the occupational radon reference level in order to present basic data for radon management guidelines considering domestic circumstances. Methods: This study uses radon data measured in the subway stations from 2015 to 2016. Of the total of 4,643 cases, 4,231 cases were analyzed excluding the 412 cases where the values were below $300Bq/m^3$. Results: Cost-Benefit analysis was done on the results of the field survey on subway work sites. At the exposure level of $400Bq/m^3$, the ratio between the cost and the benefit was highest at 1 : 1.81(the cost was KRW 1,398,568,032, while the benefit KRW 2,5248,772,841). At the exposure level of $600Bq/m^3$, the ratio of cost and benefit was 1: 1.80, at $300Bq/m^3$ it was 1.72, at $800Bq/m^3$ it was 1.71, at $200Bq/m^3$ it was 1.54, and at $100Bq/m^3$ it was 1.40. Conclusions: Radon management in the workplace provides economic benefits and appropriate reduction strategies are needed. In addition, it is necessary to establish and distribute radon exposure assessment procedures and guidelines for the safety and health of employees when exceeding the exposure standard, and guidelines for radon management in the workplace should be established.

• 한국환경보건학회지
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• 제32권6호
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• pp.571-577
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• 2006

Health benefits from implementing air quality control measures were assessed using the Environmental Benefits Mapping and Analysis Program (BenMAP). BenMAP developed by US EPA is a GIS-based software tool that estimates the health impacts and associated economic values connected with changes in ambient air pollution. Once a set of BenMAP-required data was collected, the health benefits from implementing Seoul Air Quality Management Plan (SAQMP), an official AQ improvement plan for Seoul Metropolitan Area, was assessed using BenMAP. The PM10 concentrations assuming the SAQMP implemented successfully were predicted with the MM5 (Mesoscale Meteorological model version 5)/CMAQ (Community Multiscale Air Quality) model. A PM 10 exposure related premature mortality function was adopted trom a well-known epidemiology study. Economic valuation functions driven from benefit transfer methods were utilized. Through the SAQMP, PM10 concentrations were estimated to be lowered by $15{\mu}g/m^3\;to\;75{\mu}g/m^3$ depending on air quality modeling grids. 5,569 premature deaths (95% CI $3,264{\sim}7,809$ deaths) could be avoided in the Seoul Metropolitan Area. The economic value of the deaths avoided was estimated to $13.2 billion $(95%\;CI\;$890\;million{\sim}$28.2\;billion)$ using the benefit transfer value. BenMAP could be a useful tool for developing effective air quality improvement policy, enabling the policy makers to anticipate the effects of regulatory changes on people's health and the economy.

• Asia Pacific Journal of Business Review
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• 제4권2호
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• pp.23-33
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• 2020

Uzbekistan has been gradually integrating into the world economy since gaining its independence back in 1991. The need to integrate stems from the desire to advance the national economy and social well-being of population through importing advanced technologies or stimulating exports. However, opening up the country also meant exposure to increase in the mobility of its human capital. As a result, Uzbekistan has witnessed labor migration in and out of the country in the past couple of decades, driven by various causes, which is having inevitable social and economic implications for the country. Intensifying processes in contemporary international labor market make migration as a mechanism, which has a back-to-back impact onto and from economic development of a country. From developing countries' perspective, international labor migration is an instrument for reducing tension in national labor markets, decreasing high rates of unemployment and expanding sources of income. From developed countries' perspective, international labor migration helps solve demographic problems like decreasing number of population, aging of population and shortage of labor force. Thus, this processes turned into a mechanism or a system, which is not possible to ignore. Uzbekistan, in particular, is increasing its participation in the international labor market due to its high rates of population growth and young population.

• 산경연구논집
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• 제13권8호
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• pp.9-18
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• 2022

Purpose: K-beauty products industry trends, estimates and dynamics are examined in this study to discover a potential possibility for growth. There is a thorough examination of the elements that drive and impede the expansion of the K-beauty industry. This study aims to investigate marketing strategy of K beauty product to enhance economic growth in South Korea. Research design, data and methodology: This study used one of the most famous approach for analyzing the current literature which is a PRISMA (Process and Systematic Reviews and Meta-Analyses) method. This method maps out the number of records identified, the included and the excluded ones with the reasons for the exclusion. The technique clearly states the research problem and the appropriate scope. Results: The theoretical findings of prior literature indicates K-beauty companies should retain physical locations despite the trend toward online commerce, in order to guarantee that they meet the demands of different customers and enhance customer experiences to develop trust and loyalty. Conclusions: The findings of this research are of academic importance since they provide light on customer preferences for new K-beauty products. While past research has often ignored certain kinds of influencers, this study emphasized the need of considering influencers and certain product exposure strategies together, which has major academic consequences.

• 한국환경보건학회지
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• 제40권4호
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• pp.279-293
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• 2014

Objectives: Children are more susceptible to heavy metal toxicity than adults. The purpose of this study was to evaluate heavy metal concentrations in the blood of Korean preschoolers and investigate the association between metals in blood and related factors. Methods: A total of 512 subjects from 36 to 83 months of age were sampled. A questionnaire survey was performed and the levels of lead, mercury and cadmium were measured in the blood samples of all subjects. Their parents were interviewed in order to obtain information on basic characteristics, dietary patterns, socio-economic factors, and indoor/outdoor environment of the preschoolers. Multiple linear regression was used to analyze the association between the above factors and lead, mercury or cadmium concentrations. Results: The geometric mean concentrations of lead, mercury and cadmium in the blood were $1.45{\pm}1.58{\mu}g/dL$, $2.14{\pm}1.74{\mu}g/dL$ and $0.23{\pm}1.91{\mu}g/dL$, respectively. Results from multiple linear regression analysis showed that blood lead levels were associated with birth weight and paternal smoking status. Daily mercury intake from food and maternal education were also shown to influence mercury concentrations in blood. Also, blood cadmium concentrations were associated with maternal age and having a bus garage near the place of residence. Conclusion: This study suggests that smoking status, dietary patterns and the environmental status near the residence should be considered as important factors for preventable sources of heavy metal exposure in preschoolers.

• 한국환경보건학회지
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• 제49권1호
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• pp.48-56
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• 2023

Background: Few studies have assessed exposure to chemicals in the context of environmental vulnerability with a focus on exposure among populations living in certain geographical areas. Objectives: This study aimed to investigate cadmium exposure levels and kidney damage indices in environmentally and socioeconomically vulnerable populations, with further subgrouping according to economic status. Methods: Four areas were selected to represent geographical vulnerability (two environmentally vulnerable populations and two socioeconomically vulnerable populations). Among them, population groups with lower socioeconomic status (SES) were separately classified. Urinary cadmium (UCd), beta2-microglobulin (β2-MG), and N-acetyl-β-D-glucosaminidase (NAG) levels were analyzed in samples from 245 residents of these four areas. Results: Geometric means of concentrations of UCd (0.97~2.02 ㎍/g creatinine) in all selected populations (N, 245; mean age, 67.8~70.9 years old) were higher than the national reference values (0.39 for adults and 0.78 ㎍/g creatinine for people in their 60s). Participants with a lower SES had higher UCd and NAG concentrations than did non-low SES participants. In the lower SES group, there was a significant association between UCd and NAG concentrations; however, there was no such correlation in the non-low SES group. Conclusions: Consistent with the findings of previous studies evaluating chemical exposure and associated health effects in specific populations, the findings of this study suggest that individuals with a low SES may be more vulnerable to exposure and related health effects.

• 재무관리연구
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• 제25권4호
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• pp.53-78
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• 2008

외국인 투자자가 한국 시장에 투자를 하는 경우 외국인 투자자는 투자자산에 내재된 환위험과 함께 수익을 환산하는 과정에서의 환위험에 노출된다. 외국인 투자자의 이러한 상황은 투자자산에 내재된 환위험만을 고려하면 되는 국내 투자자와는 구분되는 상황이다. 이러한 차이는 외국인 투자자가 환위험에 대해 국내 투자자와는 다르게 반응하는 원인이 될 수 있다. 환위험에 관한 국내의 기존 연구는 한국 기업들이 환위험에 노출되어 있고 이에 대한 관리가 필요하다는 점을 잘 보여주었다. 또한 동일한 시장이라 하더라도 시장 참여자의 특성에 따라 시장이 분할 될 수 있다는 증거들이 보고되었다. 이러한 기존 연구 결과는 환위험이 시장을 분할하는 요인이 될 수 있음을 지지하는 것이다. 이 연구는 한국유가증권시장에서 외국인 투자자들의 환위험에 대한 반응을 거래량 자료와 주문량 자료를 이용하여 분석하였다. 분석 결과 외국인 투자자는 환위험을 나타내는 공분산이 음수인 경우 매도거래를 증가시킨다. 이는 환율이 상승하면서 주식수익률이 하락하는 환위험을 적극적으로 관리하기 위한 거래의 결과로 해석할 수 있다. 주문자료에 대한 분석 결과도 이러한 해석을 뒷받침한다. 한편, 외국인 투자자는 공분산이 음수인 경우 매입거래도 증가시키는 것으로 분석되었는데 이는 환율이 하락하면서 주식수익률이 상승하고 투자수익의 환산이익도 함께 증가하는 관계를 적극적으로 활용하기 위한 거래의 결과로 해석할 수 있다. 그러나 외국인 투자자의 매입주문비율 분석 결과는 거래자료 분석 결과와는 달리 유의적인 결과가 나타나지 않았다. 이 연구의 분석 결과는 외국인 투자자는 국내 자산에 내재된 환위험에 대해서 국내 투자자와는 다른 반응을 보인다는 가설을 지지한다. 외국인 투자자는 환율이 상승(하락)하는 경우 기업가치가 상승(하락)하는 방향의 환위험에서는 국내 투자자와 차별적인 반응을 보이지 않는다. 그러나 환율이 상승(하락)하면 기업 가치가 하락(상승)하는 방향의 환위험에서는 국내투자에 비해 거래를 증가시키는 차별적인 특성을 보인다. 이러한 결과는 한국유가증권시장에서 외국인투자자는 환위험에 대하여 국내 투자자와는 다른 평가를 하고 있으며 이러한 차이는 투자자산의 평가에 반영되고 있음을 나타낸다.

• 한국동물위생학회지
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• 제44권4호
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• pp.291-297
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• 2021

Severe outbreaks of porcine epidemic diarrhoea virus (PEDV) have continued to re-emerge worldwide. Because of the high mortality rate of suckling piglets in PEDV outbreaks, the disease causes significant economic losses in the pig industry. The limited pre-existing immunity against this virus is thought to cause an explosive increase in infection in pig farms. This study aimed to evaluate the clinical symptoms of PEDV after intentional exposure (feedback). During the first few days of the outbreak in a breeding pig farm, 14 sows showed watery diarrhoea, and the disease subsequently spread rapidly throughout the barn. Pigs that were intentionally exposed to PEDV (n=251) showed watery diarrhoea (46.6%), reduced appetite (17.5%), and vomiting (6.0%). However, 75 exposed pigs (29.9%) showed no clinical signs of disease. Four weeks after the feedback challenge, 34 sows gave birth to litters of piglets, which survived with no diarrhoea. Five weeks after the start of the outbreak, PEDV was not detected in any of the examined samples, including environmental swabs. Thus, early diagnosis, prompt establishment of herd immunity, and strict application of biosecurity are good practices to reduce the mortality rates among new-born piglets and control economic losses in pig farms showing PEDV outbreaks.

• 복식문화연구
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• 제20권6호
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• pp.854-868
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• 2012

The purposes of this study were to investigate the effects of clothing values, self-perceived physical attractiveness on sensuous clothing behavior(see-through, body emphasis, body exposure, skinny), and also to figure out if any causal relationships existed among variables and whether demographic variables affected these relationships. For data collection, a questionnaire was administrated to 500 female college students in Gwangju City, Korea. The results were summarized as follows. First, clothing values were divided into six factors: religious clothing value, political clothing value, exploratory clothing value, social clothing value, economic clothing value, aesthetic clothing value. Sensuous clothing behaviors were divided into four factors: see-through, body emphasis, body exposure, skinny. Overall clothing values had positive effects on sensuous clothing behaviors. Second, self-perceived physical attractiveness turned out to have significant effects on overall sensuous clothing behaviors. Third, clothing values turned out to have significant effects on overall self-perceived physical attractiveness. This study confirmed that clothing values and self-perceived physical attractiveness turned out to have significant effects on sensuous clothing behavior.

• 한국환경보건학회지
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• 제36권2호
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• pp.163-169
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• 2010

All forms of asbestos are proven human carcinogens. All forms of asbestos cause malignant mesothelioma, lung, laryngeal, and ovarian cancers, and may cause gastrointestinal and other cancers. No exposure to asbestos is without risk, and there is no safe threshold of exposure to asbestos. Asbestos cancer victims die painful lingering deaths. These deaths are almost entirely preventable. When evidence of the carcinogenicity of asbestos became incontrovertible, concerned parties, including the Collegium Ramazzini, called for a universal ban on the mining, manufacture and use of asbestos in all countries around the world. Asbestos is now banned in 52 countries, and safer products have replaced many materials that once were made with asbestos. Nonetheless, a large number of countries still use, import, and export asbestos and asbestos-containing products. And still today in many countries that have banned other forms of asbestos, the so-called "controlled use" of chrysotile asbestos continues to be permitted, an exemption that has no basis in medical science but rather reflects the political and economic influence of the asbestos mining and manufacturing industry. To protect the health of all people in the world, industrial workers, construction workers, women and children, now and in future generations - the Collegium Ramazzini calls again today on all countries of the world, as we have repeatedly in the past, to join in the international endeavor to ban all forms of asbestos. An international ban on asbestos is urgently needed.