• Journal of Arbitration Studies
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• v.15 no.2
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• pp.125-162
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• 2005

This paper examined excluded risks of insurer in marine insurance generally, and found out the existing studies on the excluded risks, which were accomplished partially and fragmentarily, to conduct a comparative analysis of marine insurance based on the general flow of claim adjustment. It arranges the existing studies to settle a dispute between the parties -insurer and assurer- and studies the excluded risk based on risk change of the insured by analyzing characteristic and class of security violation, and meaning, form, effect of risk change. it inquires into and analysis cases of the Korean Supreme Court related to the exclusion and illegal act of marine insurance to compare marine theorists' opinion with commercial law.

• Restorative Dentistry and Endodontics
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• v.46 no.3
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• pp.37.1-37.11
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• 2021

Objectives: This systematic review evaluated the efficacy of the supplementary use of the XP-endo Finisher on bacteria content reduction in the root canal system. Materials and Methods: In-vitro studies evaluating the use of the XP-endo Finisher on bacteria content were searched in four databases in July 2020. Two authors independently screened the studies for eligibility. Data were extracted, and risk of bias was assessed. Data were meta-analyzed by using random-effects model to compare the effect of the supplementary use (experimental) or not (control) of the XP-endo Finisher on bacteria counting reduction, and results from different endodontic protocols were combined. Four studies met the inclusion criteria while 1 study was excluded from the meta-analysis due to its high risk of bias and outlier data. The 3 studies that made it to the meta-analysis had an unclear risk of bias for at least one criterion. Results: No heterogeneity was observed among the results of the studies included in the meta-analysis. The study excluded from the meta-analysis assessing the bacteria counting deep in the dentin demonstrated further bacteria reduction upon the use of the XP-endo Finisher. Conclusions: This systematic review found no evidence supporting the supplementary use of the XP-endo Finisher on further bacteria counting the reduction in the root canal.

• The Journal of Internal Korean Medicine
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• v.28 no.3
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• pp.421-433
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• 2007

Objectives : This study was performed to evaluate the relationships among blood-stasis. cardio-ankle vascular index(CAVI) and cardiovascular risk. Methods : We obtained general characteristics. blood-stasis score and CAVI from 150 stroke patients. Blood-stasis score was evaluated by blood-stasis criteria. Cardiovascular risk (the following. Stuart's risk score) was evaluated by Stuart's risk scoring scale. We divided subjects into a blood-stasis group and a non blood-stasis group by blood-stasis scores. high CAVI and normal CAVI groupsby CAVI. We compared the general characteristics. CAVI (excluded from comparison between high CAVI group and normal CAVI group), Stuart's risk score and blood-stasis score (excluded from comparison between blood-stasis group and non blood-stasis group) between each pair of groups. Pearson correlation analysis was applied to examine the relationship between blood stasis score and CAVI, blood stasis score and Stuart's risk score. CAVI and Stuart's risk score. Results : The blood-stasis group had significantly higher CAVI and Stuart's risk scores than the non blood stasis group. The high CAVI group had significantly higher blood-stasis score and Stuart's risk score than the normalCAVI group. In correlation analysis. there were significant positive relationship between blood stasis score and Stuart's risk score, CAVI and Stuart's risk score. and blood stasis score and CAVI. Conclusions : This study suggeststhat there is a significant relationship among blood stasis,CAVI and cardiovascular risk.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.23
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• pp.10525-10529
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• 2015

Objective: To investigate the relationship between the perception of cancer risk and likelihood of having undergone cancer screening. Materials and Methods: We used data from the Korean Health Panel Survey from December 2011 onward. Of 3,390 patients who visited a hospital during the previous year, we included data from 2,466 individuals; 924 samples were excluded due to missing data. Logistic regression analysis and the chi square test were used to investigate the association between perceived cancer risk and the likelihood of having undergone cancer screening. Results: For patients who perceived their risk of developing cancer during the next 10 years to be 30-40%, the odds ratio was increased 1.65 fold (95%CI: 1.223, 2.234) compared with those who perceived their risk to be almost zero. Although the difference was not statistically significant, perceiving cancer risk as either extremely low or extremely high appears to be associated with a reduced likelihood of having undergone cancer screening, resulting in an inverted U-shaped relationship. Conclusions: Physicians and researchers should be aware of the importance of the affective component of risk perception. Policies addressing the influence of cancer risk perception should be implemented in South Korea and worldwide.

• Journal of The Korean Society of Clinical Toxicology
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• v.18 no.2
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• pp.116-122
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• 2020

Acute respiratory failure is an important risk factor for mortality in patients with acute pesticide poisoning. Therefore, it is necessary to investigate the risk factors to predict respiratory failure in these patients. This study retrospectively investigated the clinical features of respiratory failure among patients with acute pesticide poisoning requiring mechanical ventilation. This study included patients who were admitted with intentional poisoning by pesticide ingestion from January 2017 to December 2019. Paraquat intoxication was excluded. Among 469 patients with acute pesticide poisoning, 398 patients were enrolled in this study. The respiratory failure rate was 30.4%. The rate of respiratory failure according to the type of pesticide was carbamate (75.0%), organophosphate (52.6%), glufosinate (52.1%), glyphosate (23%), pyrethroid (8.9%), and others (17%). The mortality was 25.6% in the respiratory failure group. The risk factors for respiratory failure were old age, low body mass index, and ingestion of more than 300 mL. In conclusion, respiratory failure is a risk factor for mortality in pesticide poisoning. Old age, low body mass index, and ingestion of more than 300 mL are the risk factors for predicting respiratory failure.

• Journal of the Korean Society of Marine Environment & Safety
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• v.18 no.5
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• pp.431-438
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• 2012

The representative risk evaluation techniques of the marine traffic environment are the FSA, PAWSA, & IWRAP. For the development of these techniques, the risk factors suitable to the marine traffic environment should be selected & the assessment criterion of the risk factors should be provided. The risk factors were selected as the factors that relate both to the frequency of casualty & to the consequence of casualty because the risk was defined as the frequency of casualty times the consequence of that casualty on the existing techniques. But, the risk factors relate to the consequence of casualty are excluded because the risk is defined as the sum of the risk factors including the frequency and the consequence by factors on this study. The 20 kinds of risk factors to compose the risk are selected and classified into 5 categories according to similar nature through the analysis of preceding study on the classification of the risk factors. Finally, as the foundation of risk assessment model's development for domestic marine traffic environment, the practical assessment criterion of the risk factors are suggested.

• Journal of the Korean Society of Safety
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• v.36 no.4
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• pp.80-87
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• 2021

Risk assessment techniques are processes used to evaluate hazardous risk factors in construction sites, facilities, raw materials, machinery, and equipment, and to estimate the size of risk that could lead to injury or disease, and establish countermeasures. The most important thing in assessing risk is calculating the size of the risk. If the size of the risk cannot be calculated objectively and quantitatively, all members who participated in the evaluation would passively engage in establishing and implementing appropriate measures. Therefore, this study focused on predicting accidents that are expected to occur in the future based on past occupational accident statistics, and quantifying the size of the risk in an overview. The technique employed in this study differs from other risk assessment techniques in that the subjective elements of evaluators were excluded as much as possible by utilizing past occupational accident statistics. This study aims to calculate the size of the risk, regardless of evaluators, such as a manager, supervisor, safety manager, or employee. The size of the risk is the combination of the likelihood and severity of an accident. In this study, the likelihood of an accident was evaluated using the theory of Bud Accident Chainability, and the severity of an accident was calculated using the occupational accident statistics over the past five years according to the accident classification by the International Labor Organization.

• Journal of Positioning, Navigation, and Timing
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• v.9 no.3
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• pp.285-292
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• 2020

This paper introduces a new computational efficient Dilution of Precision (DOP)-based landmark exclusion method while ensuring the safety of the LiDAR-based navigation system that uses an innovation-based Nearest-Neighbor (NN) Data Association (DA) process. The NN DA process finds a correct landmark association hypothesis among all potential landmark permutations using Kalman filter innovation vectors. This makes the computational load increases exponentially as the number of landmarks increases. In this paper, we thus exclude landmarks by introducing DOP that quantifies the geometric distribution of landmarks as a way to minimize the loss of integrity performance that can occur by reducing landmarks. The number of landmarks to be excluded is set as the maximum number that can satisfy the integrity risk requirement. For the verification of the method, we developed a simulator that can analyze integrity risk according to the landmark number and its geometric distribution. Based on the simulation, we analyzed the relationship between DOP and integrity risk of the DA process by excluding each landmark. The results showed a tendency to minimize the loss of integrity performance when excluding landmarks with poor DOP. The developed method opens the possibility of assuring the safety risk of the Lidar-based navigation system in real-time applications by reducing a substantial amount of computational load.

• Journal of Korean Biological Nursing Science
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• v.20 no.1
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• pp.20-29
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• 2018

Purpose: This study aimed to determine the relationships between particulate matter risk perception, knowledge, and perceived barriers and health-promoting behaviors among college students. Methods: Data for this cross-sectional study were collected from September 1 to 30, 2017. The study sample consisted of 85 students from a university, Seoul. Students not living in the Seoul metropolitan area during the spring 2017 semester were excluded from participation. Pearson's correlation coefficient was used to identify relationships among study variables. Results: A significant positive correlation existed between particulate matter risk perception and health-promoting behaviors related to particulate matter (r= .51, p< .001). Among the risk perception subdomains, attention (r= .47, p< .001) and health effect (r= .55, p< .001) showed strong positive relationships with health-promoting behaviors. No significant relationships were found between knowledge (r= .12, p= .288) or perceived barriers (r= -.12, p= .264) and health-promoting behaviors related to particulate matter. Conclusion: Based on the study results, strategies for enhancing particulate matter risk perception are needed to increase the level of health-promoting behaviors related to particulate matter among college students.

• The Journal of Internal Korean Medicine
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• v.22 no.3
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• pp.379-382
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• 2001

Objectives: Many studies have been reported about Sasang constitutional distribution of cerebrovascular disease(CVD) patients. But there has been little study about the risk factors of normal persons between Sasang constitutions. So we studied to evaluate the risk of CVD between Sasang constitutions. Methods: We retrospectively studied subjects without previous stroke($age{\geq}40$) who visited east-west medical examination center in Kang Nam Korean Hosipital, Kyung Hee University for last 2 years(1998.8.1.${\sim}$2000.7.31.). Sasang constitutional differentiation was performed by Questionnaire for the Constitution Classification(QSCC) II and subjects who couldn't be classifiea by QSCC II were excluded. Results : Total 363 subjects participated in this study(Taeyangin 0, Taeumin 103, Soyangin 113, Soumin 92, obscure 55). Diabetes mellitus(p<0.05), hyperlipidemia(p<0.01), obesity(p=0.000) were significantly prevalent in Taeumin. Hypertension and heart disease had no significant difference between Sasang constitutions. Conclusions: This study showed that the risk factors of CVD were more prevalent in Taeumin. Therefore we guess that Taeumin has high risk of CVD.