• Journal of the Korea Safety Management & Science
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• v.25 no.2
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• pp.121-128
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• 2023

Construction industry is considered as one of the most high-risk industries for work-related injuries and fatalities, accounting for more than half of fatalities in Korea. Advanced countries have recognized the critical role of designers in preventing construction accidents and have established regulations on design for safety. In line with this, the Korean government have also implemented regulations that require owners and designers to review the safety of design outcomes. However, it has been observed that designers face challenges in identifying hazards and integrating design solutions at the design stage mainly due to their shortage of required knowledge and skills. This study aimed to examine design solutions that can be applied to prevent fall accidents in the construction industry, and to establish a relationship between these solutions and fatal fall accidents occurred over the past three years in Korea. This study also analyzed the relationships of four variables (construction type, cost, work type, and fall location) with design solutions. The results indicated that all four variables have significant relationships with design solutions, with fall location showing the strongest relationship. The design solutions and their relationships with fatal fall accidents identified in this study can be utilized in identifying hazard and integrating design solutions to ensure design for safety.

• Safety and Health at Work
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• v.4 no.1
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• pp.1-11
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• 2013

This review surveys the recent literature on the neurodevelopmental impacts of chemical exposures during pregnancy. The review focuses primarily on chemicals of recent concern, including phthalates, bisphenol-A, polybrominated diphenyl ethers, and perfluorinated compounds, but also addresses chemicals with longer histories of investigation, including air pollutants, lead, methylmercury, manganese, arsenic, and organophosphate pesticides. For some chemicals of more recent concern, the available literature does not yet afford strong conclusions about neurodevelopment toxicity. In such cases, points of disagreement among studies are identified and suggestions provided for approaches to resolution of the inconsistencies, including greater standardization of methods for expressing exposure and assessing outcomes.

• Proceedings of the KSR Conference
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• 2007.05a
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• pp.1209-1215
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• 2007

To establish the national railway safety system, the railway total safety technology development project has been promoted by Ministry of Construction and Transportation (MOCT) since August 2004. The project is mainly focused on the prevention of a critical railway accident and the reduction of accident/mortality rate. To achieve its goal effectively, the project is composed of 15 sub-projects each of which can be categorized into three different technological area. This work deals with the verification results for the outcomes of the sub-projects carried out at the 2nd year of the project. A new verification procedure is developed and applied to the project based on the system engineering. Three criterions - The suitability of the realization of a function, the suitability of a physical structure, the suitability of a design analysis report - are used for the verifications. The verification results are investigated by calculating standard deviations of scores of each results.

• Quality Improvement in Health Care
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• v.18 no.1
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• pp.1-14
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• 2012

Two years have passed since hospital accreditation was introduced in Korea by the Korean Institute of Healthcare Accreditation (KOIHA), which takes, as its mission, continuously improving healthcare quality and patient safety for the public. KOIHA also has a plan to impose on outcomes in management of patient care. With a view to enhance the practice of accreditation in terms of quality as well as quantity, and to help improve healthcare quality and patient safety in Korea, this paper reviews some issues on healthcare policies which are expected to be adopted in 2013 by the forthcoming government. A few suggestions are added.

• Safety and Health at Work
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• v.9 no.3
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• pp.249-256
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• 2018

This article aims to provide a systematic review of the exposure assessment methods used to assign wafer fabrication (fab) workers in epidemiologic cohort studies of mortality from all causes and various cancers. Epidemiologic and exposure-assessment studies of silicon wafer fab operations in the semiconductor industry were collected through an extensive literature review of articles reported until 2017. The studies found various outcomes possibly linked to fab operations, but a clear association with the chemicals in the process was not found, possibly because of exposure assessment methodology. No study used a tiered assessment approach to identify similar exposure groups that incorporated manufacturing era, facility, fab environment, operation, job and level of exposure to individual hazardous agents. Further epidemiologic studies of fab workers are warranted with more refined exposure assessment methods incorporating both operation and job title and hazardous agents to examine the associations with cancer risk or mortality.

• Nuclear Engineering and Technology
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• v.54 no.9
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• pp.3353-3360
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• 2022

Using data from the design earthquake of the Korean standard nuclear power plant, seismic analyses of a fuel assembly are conducted in this study. The modal characteristics are used to develop an input deck for the seismic analysis. With a time history analysis, the responses of the fuel assembly in the event of an earthquake are obtained. In particular, the displacement, velocity, and acceleration responses at the center location of the fuel assembly are obtained in the time domain, with these outcomes then used for a detailed structural analysis of the fuel rods in the ensuing analyses. The response spectra are also generated to determine the response characteristics in the frequency domain. The structural integrity of the fuel assembly can be ensured through this type of time history analysis considering the input excitations of various earthquakes considered in the design.

• Journal of Physiology & Pathology in Korean Medicine
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• v.26 no.5
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• pp.657-664
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• 2012

The aim of this study is to investigate the effects of onion vinegar on the cerebral blood flow by measuring the changes of regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) and by observing the recovery of focal ischemic brain injury in rats. Rats are divided into thee groups depending on the medication; control group (no medication), 8.8-OV group (vinegar using 8.8 brix onion medication), 14.6-OV group (vinegar using 14.6 brix onion medication). The medication of onion vinegar significantly increased rCBF but decreased MABP. This result suggests that onion vinegar significantly increased rCBF by dilating arterial diameter. In addition, focal ischemic brain injury is induced in rats by middle cerebral arterial occlusion. The recovery from focal ischemic brain injury is more significantly improved in the groups using onion vinegar compared to the control group. The amount of recovery is measured by the GAP-43 and the medication of onion vinegar significantly increased GAP-43. This result suggests that onion vinegar is effective on the nerve regeneration. After the medication, the change of body weight, outcomes of renal and liver function test, and outcomes of CBC are analysed for safety examination. There are no statistical differences among control group and all experimental groups in the body weight, renal and liver function test, and CBC. In conclusion, these results suggest that onion vinegar can increase rCBF in normal state, and improve the stability of rCBF in ischemic state.

• Journal of Gastric Cancer
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• v.11 no.4
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• pp.212-218
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• 2011

Purpose: Intracorporeal anastomosis during laparoscopic gastrectomy is becoming increasingly prevalent. However, selection of the anastomosis method after laparoscopic distal gastrectomy is equivocal because of a lack of technical feasibility and safety. We compared intracorporeal gastroduodenostomy with gastrojejunostomy using linear staplers to evaluate the technical feasibility and safety of intracorporeal anastomoses as well as its' minimally invasiveness. Materials and Methods: Retrospective analyses of a prospectively collected database for gastric cancer revealed 47 gastric cancer patients who underwent laparoscopic distal gastrectomy with either intracorporeal gastroduodenostomy or gastrojejunostomy from March 2011 to June 2011. Perioperative outcomes such as operation time, postoperative complication, and hospital stay were compared according to the type of anastomosis. Postoperative inflammatory response was also compared between the two groups using white blood cell count and high sensitivity C-reactive protein. Results: Among the 47 patients, 26 patients received gastroduodenostomy, whereas 21 patients received gastrojejunostomy without open conversion or additional mini-laparotomy incision. There was no difference in mean operation time, blood loss, and length of postoperative hospital stays. There was no statistically significant difference in postoperative complication or mortality between two groups. However, significantly more staplers were used for gastroduodenostomy than for gastrojejunostomy (n=6) than for gastroduodenostomy and (n=5). Conclusions: Intracorporeal anastomosis during laparoscopic gastrectomy using linear stapler, either gastroduodenostomy or gastrojejunostomy, shows comparable and acceptable early postoperative outcomes and are safe and feasible. Therefore, surgeons may choose either anastomosis method as long as oncological safety is guaranteed.

• Safety and Health at Work
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• v.9 no.3
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• pp.239-248
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• 2018

Background: Workers may be exposed to various types of occupational hazards at the same time, potentially increasing the risk of adverse health outcomes. The aim of this review was to analyze the effects of multiple occupational exposures and coexposures to chemical, biomechanical, and physical hazards on adverse health outcomes among agricultural workers. Methods: Articles published in English between 1990 and 2015 were identified using five popular databases and two complementary sources. The quality of the included publications was assessed using the methodology developed by the Effective Public Health Practice Project assessment tool for quantitative studies. Results: Fifteen articles were included in the review. Multiple chemical exposures were significantly associated with an increased risk of respiratory diseases, cancer, and DNA and cytogenetic damage. Multiple physical exposures seemed to increase the risk of hearing loss, whereas coexposures to physical and biomechanical hazards were associated with an increased risk of musculoskeletal disorders among agricultural workers. Conclusion: Few studies have explored the impact of multiple occupational exposures on the health of agricultural workers. A very limited number of studies have investigated the effect of coexposures among biomechanical, physical, and chemical hazards on occupational health, which indicates a need for further research in this area.

• Herbal Formula Science
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• v.27 no.3
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• pp.213-221
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• 2019

Objectives : The purpose of this study is to confirm the efficacy and safety of the treatment of gastritis with 'Hwangryunhaedok-tang'. Methods : Total 20 people, between 19 and 65 years old, will be recruited to participate in a comparative clinical trial. All subjects will take 2 capsules of Hwangryunhaedok-tang (Redoxin Cap.), 3 times a day, 30 minutes after meals, for 8 weeks. Outcomes will be measured at the baseline, 4th week, and 8th week. Primary outcomes is the improvement rates of gastritis symptoms, such as heartburn, nausea/vomiting, abdominal bloating, anorexia, heartburn, and trim. Results : This trial was approved by institutional review board of Pusan National University Korean Medicine Hospital (registry number: 2018011), and registered in Clinical Research information Service, one of WHO. Recruitment opened in April 2019 and is supposed to be completed by December 2019. Conclusions : This trial will provide clinical information to determine the efficacy and safety of treatment of gastritis with 'Hwangryunhaedok-tang'.