• Title/Summary/Keyword: Risk management factors

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District-Level Seismic Vulnerability Rating and Risk Level Based-Density Analysis of Buildings through Comparative Analysis of Machine Learning and Statistical Analysis Techniques in Seoul (머신러닝과 통계분석 기법의 비교분석을 통한 건물에 대한 서울시 구별 지진취약도 등급화 및 위험건물 밀도분석)

  • Sang-Bin Kim;Seong H. Kim;Dae-Hyeon Kim
    • Journal of Industrial Convergence
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    • v.21 no.7
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    • pp.29-39
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    • 2023
  • In the recent period, there have been numerous earthquakes both domestically and internationally, and buildings in South Korea are particularly vulnerable to seismic design and earthquake damage. Therefore, the objective of this study is to discover an effective method for assessing the seismic vulnerability of buildings and conducting a density analysis of high-risk structures. The aim is to model this approach and validate it using data from pilot area(Seoul). To achieve this, two modeling techniques were employed, of which the predictive accuracy of the statistical analysis technique was 87%. Among the machine learning techniques, Random Forest Model exhibited the highest predictive accuracy, and the accuracy of the model on the Test Set was determined to be 97.1%. As a result of the analysis, the district rating revealed that Gwangjin-gu and Songpa-gu were relatively at higher risk, and the density analysis of at-risk buildings predicted that Seocho-gu, Gwanak-gu, and Gangseo-gu were relatively at higher risk. Finally, the result of the statistical analysis technique was predicted as more dangerous than those of the machine learning technique. However, considering that about 18.9% of the buildings in Seoul are designed to withstand the Seismic intensity of 6.5 (MMI), which is the standard for seismic-resistant design in South Korea, the result of the machine learning technique was predicted to be more accurate. The current research is limited in that it only considers buildings without taking into account factors such as population density, police stations, and fire stations. Considering these limitations in future studies would lead to more comprehensive and valuable research.

Prioritizing for Selection of New High-heat Risk Industries and Thermal Risk Assessment (신규 고열 위험 업종 선정을 위한 우선순위 및 온열 위험 평가)

  • Saemi Shin;Hea Min Lee;Nosung Ki;Jeongmin Park;Sang-Hoon Byeon;Sungho Kim
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.33 no.2
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    • pp.230-246
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    • 2023
  • Objectives: The climate crisis has arrived and heat-related illnesses are increasing. It is necessary to discover new high-heat risk industries and understand the environment . It is also necessary to prioritize risks of industries that have not been included in the management target to date. The study was intended to monitor and evaluate the thermal risk of high-priority workplaces. Methods: A prioritization method was developed based on five factors: occurrence of and death due to heat-related illnesses, work environment monitoring, indoor work rate, small heat source, and limited heat dissipation. it, was applied to industrial accidents caused by heat-related illnesses. Wet bulb temperature index and apparent temperature were measured in July and August at 24 workplaces in seven industries and assessed for thermal risk. Results: The wet bulb temperature index was in the range of 23.8~31.9℃, and exposure limits were exceeded in the growing of crops, food services activities and accommodation, and building construction. The apparent temperature was in the range of 26.8~36.7℃, and exceeded the temperature standard for issuing heatwave warnings in growing of crops, food services activities and accommodation, warehousing, welding, and building construction. Both temperature index in growing of crops and building construction were higher than the outside air temperature. Conclusions: In the workplace, risks in industries that have not be controlled and recognized through existing systems was identified. it is necessary to provide break times according to the work-rest time ratio required during dangerous time period.

Comparison of Anger Expression Style and Cognitive Characteristics among Male adolescent game users depending on the level of Game Addiction and Engagement (게임중독 및 관여 수준에 따른 남자 청소년 게임사용집단의 분노표현양상과 인지적 특성 비교)

  • Lim, Jeeyoung
    • Journal of Digital Convergence
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    • v.15 no.10
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    • pp.339-348
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    • 2017
  • This study was conducted to examine the differences of anger expression style and cognitive characteristics among adolescents depending on the level of game addiction and game engagement. 420 high school boys were administered the Game Addiction/Engagement Scale, Behavioral Anger Response Questionnaire to measure anger expression style, and Irrational Belief Scale to measure cognitive characteristics. The results of correlation analyses showed that addiction had positive correlations with all the irrational belief factors and behavior anger factors except for assertion and avoidance. Engagement was positively correlated with all the variables except for direct anger-out, avoidance, and self-downing. Participants were divided into three groups depending on the level of addiction and engagement. Addiction high risk-low engagement group showed the lowest scores on support-seeking and the highest scores on diffusion and self-downing. Addiction high risk-high engagement group showed the highest scores on direct anger-out. Based on these findings, it was suggested that counselling strategies for adolescents at high risk of game addiction need to be varied depending on the level of game engagement.

A Survey Study on the Frequency of Occurrence of the Female Disease in the Pelvis using Sonography (초음파검사에서 여성 골반내 질환별 발생빈도 조사연구)

  • Han, Nam-Sook;Lee, Man-Koo;Im, Cheong-Hwan;Jung, Hong-Ryang;Cho, Jung-Keun
    • Journal of radiological science and technology
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    • v.30 no.3
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    • pp.219-225
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    • 2007
  • This study was performed for the purpose of providing basic data of the pelvic disorders through survey of the frequency of management of occurrence by major risk factor. Female pelvic mass was detected using sonography, and necessary data were collected from 604 female visitors to a obstetrics and gynecology hospital located at S-si. Female pelvic mass was uterus mass, ovarian mass, cervical cyst, endometrial disease. For the analysis, such variables as age, weight and frequency of pregnancy were chosen as risk factors. Results of the analysis and conclusions are as follows ; 1) The frequency of occurrence of the female pelvic mass is highest, as 38.9% of the component ratio, in the age of 35 to 54. It maintains high level of 35.8% even in the age of 55 and above. 2) The frequency of occurrence of the female pelvic mass increases in proportion as the weight and frequency of pregnancy increase. 3) The size of the uterus tumor has no statistical relationship with the risk factors, age, weight and frequency of pregnancy.

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Risk Factors of Predicting Intensive Care unit Transfer in Deteriorating Ward Patients (병동 급성악화 환자의 중환자실 전동 위험요인 분석)

  • Lee, Ju-Ry
    • Journal of Digital Convergence
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    • v.19 no.4
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    • pp.467-475
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    • 2021
  • Purpose: When a patient with acute deterioration occurs in a ward, the decision to transfer to intensive care unit (ICU) is critical to improve the patient's outcomes. However, when available ICU resources limited, it is difficult to determine which of the deteriorating ward patients to transfer to the ICU. Therefore the purpose of this study was to identify risk factors in predicting deteriorating ward patients transferred to intensive care unit (ICU). Methods: We reviewed retrospectively clinical data of 2,945 deteriorating ward patients who referred medical emergency team. Data were analyzed with multivariate logistic regression. Results: The solid cancer that diagnosed at hospitalization (odds ratio[OR] 0.39; 95% confidence interval [CI] 0.32-0.47), when the cause of deterioration was respiratory problem (1.51; 95% CI 1.17-1.95), high MEWS (1.22; 1.17-1.28) and SpO2/FiO2 score (2.41; 2.23-2.60) were predictive of ICU transfer. Conclusion: These findings suggest that early prediction and treatment of patients with high risk of ICU transfer may improve the prognosis of patients.

Research on the Impact of Dietary Behaviors, Physical Activity, Obesity on Weight Control Efforts in the Korea Youth Risk Behavior Survey (청소년 건강행태조사의 식생활, 신체활동과 비만 및 체중조절과의 영향 연구)

  • Jung-Suk Park
    • Journal of Industrial Convergence
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    • v.22 no.10
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    • pp.65-72
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    • 2024
  • This study aims to analyzed the health behaviors, dietary behaviors, and physical activities of Korean adolescents and to identify the factors and influences of these behaviors on obesity and weight control. The subjects and methods of this study involved a secondary analysis using data from the 2023(19th) Korea Youth Risk Behavior Survey. Variables such as gender, age, education level, subjective health status, dietary behaviors, physical activity, obesity on weight control efforts were utilized, and statistical significance was confirmed using the SPSS. In terms of subjective body perception, reported feeling "slightly overweight(30.1%)", while "very overweight(7.5%)". The frequency of sweet beverage consumption was reported as "do not drink(6.2%)" and "once daily(10.4%)". The frequency of fast food consumption was notably high, "do not eat(6.7%)" and "1 to 2 times a week(56.7%)". Regarding physical activity in the past week, did not engage in physical activity for more than 60 minutes a day(31.8%), did not participate in high-intensity exercise(24.1%), and did not engage in strength training(50.6%). Conversely, in physical activity for more than 60 minutes daily(7.1%), in high-intensity physical activity daily(6.4%), and strength training daily(5.3%). The results showed that the number of days of strength training(𝛽=.131), high-intensity physical activity(𝛽=.069), days of physical activity(𝛽=.045), and frequency of sweet beverage consumption(𝛽=-.035) were identified as factors influencing weight control efforts(p<.001). Based on this study, we aims to suggest practical strategies for solving the problems of adolescent obesity and weight control, and to contribute to providing basic data necessary for the healthy growth and development of adolescents.

A study on Hepatitis B and knowledge about AIDS of dental hygiene student in Korea (전국 치위생과 학생들의 B형간염과 AIDS에 관한 지식도 조사)

  • Song, Kyung-Hee;Bae, Bong-Jin
    • Journal of Korean society of Dental Hygiene
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    • v.1 no.2
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    • pp.181-192
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    • 2001
  • The purpose of this was to evaluate the level of knowledge about Hepatitis B and AIDS among dental hygiene students at six dental hygiene educational programs in nationwide, compare the findings to those of Song's study. 1703 dental hygiene students surveyed by mail and answered a questionnaire, using the questionnaire used developed by DiClemente el al., on Hepatitis B vaccination, antibody production, experience of unintentional needle stick injuries, experience of surgical operation and blood transfusion, personal risk factors for HBV and HIV, management of HBV and HIV postexposure management et al. The data indicated that dental hygiene students (79.0%) in this study had more HIV vaccination than dental hygiene(74.3%) in Song's study. As for recognition of antibody production after Hepatitis B vaccination, only 34.6% of respondents answered they knew having antibody production and 95% of respondents knew not having antibody production. Over one-half of the respondents (55%) answered they didn't even recognize having antibody production. 52.3 percent of dental hygiene students experienced unintentional needle stick injuries. The findings on the knowledge about Hepatitis B and AIDS were that dental hygienists (76.5 points) received higher mean score than those of dental hygiene students (71.0 points) and that the distribution of right answer rate also showed wider range in dental hygiene students (27.7~97.5%) than those of dental hygienist (41.2~99.5%). There were no statistical differences among dental hygiene education programs. Finding of this study support that the curriculum of dental hygiene program should include instruction on sources and methods of transmission of infectious diseases, risk of virus transmission in the workplace and principles of infection control. Furthermore, infection-control practices should be utilized routinely and their application to dental personnel, management of HBV and HIV postexposure management. Furthermore, for preventing the further spread of infectious diseases (HBV, HIV and AIDS) caused by bloodborne viruses, imposing an obligation rather than recommendation on Hepatitis B vaccination to all dental personnel and routinely utilizing infection-control guidelines for all dental patients in dental practices (include dental educational programs) should be accomplished by coordination the government agency.

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Okadaic Acid Group Toxins: Toxicity, Exposure Routes, and Global Safety Management (오카다익산 군 독소: 독성, 분석법 및 관리 동향)

  • Kyoungah Lee;Namhyun Kim;Jang Kyun Kim;Youn-Jung Kim;Jung Suk Lee;Young-Seok Han
    • Journal of Food Hygiene and Safety
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    • v.38 no.6
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    • pp.409-419
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    • 2023
  • Okadaic acid (OA) group toxins, including OA and its analogs, such as dinophysis toxins (DTXs), have been reported to cause diarrheal shellfish poisoning (DSP). These toxins are primarily produced by dinoflagellates and are accumulated in bivalves. Recently, the presence of Dinophysis sp., a causative alga of DSP, has been reported along the coasts of Korea, posing a potential risk of contamination to domestic seafood and exerting an impact on both the production and consumption of marine products. Accordingly, the European Food Safety Authority (EFSA) and the World Health Organization (WHO) have established standards for the permissible levels of OA group toxins in marine products for safety management. Additionally, in line with international initiatives, the domestic inclusion and regulation of DTX2 among the substances falling under the purview of management outlined by the 2022 diarrheal shellfish toxin standard have been implemented. In this study, we reviewed the physicochemical properties of OA group toxins, their various exposure routes (such as acute toxicity, genotoxicity, reproductive and developmental toxicity), and the relative toxicity factors associated with these toxins. We also performed a comparative assessment of the methods employed for toxin analysis across different countries. Furthermore, we aimed to conduct a broad review of human exposure cases and assess the international guideline for risk management of OA group toxins.

The effects of Resilience on employee's Innovative Work Behavior : moderating effect of Organizational Support and Organizational Error Management Culture (회복탄력성이 조직구성원의 혁신행동에 미치는 영향 - 조직지원과 실책관리문화의 조절효과 -)

  • Cho, Young-Bohk;Lee, Na-Young
    • Management & Information Systems Review
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    • v.33 no.5
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    • pp.155-169
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    • 2014
  • We meet many difficult challenges from many factors such as crime, natural disasters, social unrest, financial problems, employment, and so on. It therefore essential to cope with these negative stressful events to attain a state of personal well-being. Lately in the field of psychology and psychiatry, a concept called 'resilience' has received increasing attention. Resilience embodies the personal qualities that enable one to thrive in the face of adversity. Also it refers to the process of overcoming the negative effect of risk exposure, coping successfully with adversity, and avoiding the negative trajectories associated with risks. Resilience people were expected to do their innovative work behavior well. And SUS(supervisor support), COS(coworker support), OEMC(organizational error management culture) influence the relationship of resilience between Innovative Behavior. This study focused on three question. First, how is resilience relate to individual performance in the organization? And second, are there any moderate factors between resilience and individual performance. As the result of the hierarchical regression analysis, resilience indicates positive effects on IB and IB was predicted by interaction of resilience by SUS and OEMC. Findings in this study indicated that the level of SUS and OEMC should be considered in interpreting the resilience and Innovative Behavior.

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A Study on Stress in Poor Families with School Children (학령기 자녀를 둔 빈곤가족의 스트레스 -일 지역 빈곤가족의 실태와 경험을 중심으로-)

  • Kang Hee Kyeung
    • Child Health Nursing Research
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    • v.5 no.2
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    • pp.185-197
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    • 1999
  • In the family life cycle, the most important task the families with school children should perform is ‘child education’ and ‘socialization’ However, economic stress on poor families with school children presents multiple problems through the shortage of resources necessary for child education and socialization, inappropriateness of family appraisal, and the insufficiency of the control channels for the efficient management of these confined resources and appropriate appraisal. The objectives of this article are : First, to report research on the actual conditions of the poor families in one area of Cheju and on the relevant health welfare policy, and to examine the appropriateness of the direction and the substance of this policy in terms of the intervention in economic stress on the poor families under the categories of resource management and control of appraisal. Second, to analyze qualitative data extracted from the memoirs of single-parent families living in several areas of Korea under the conceptual framework constructed by literature review in order to get a better understanding of the stress which poor families with school children have experienced. And third, to confirm the factors that can be risk factor but, at the same time, strength to these poor families from presented data and to use them as the basic data from which an intervention model can be developed, based on resource management and control of appraisal. The findings of this article are : First, while the number of absolute poor families in one area of Cheju is increasing and, as a result, the danger of the possibility that multiple problems will occur is also growing, the supporting level of the current policy is no more than a direct resource offer and there is no evidence that resource management is being professionally carried out. When it comes to control of appraisal, due to absence of the professional human resources in this matter, policy performances such as technical education training can have a negative impact. Second, a conceptual framework introduced in this article, ; Economic Pressure → Helplessness → Poor self-esteem → Marital Conflict → Parent-Child financial conflict → Inappropriate socialization → Poor child social competence : is partly verified. And third, judging from the results of the qualitative data, it is confirmed that the healing families, having overcome poverty, show several positive characteristics including : hope, strength, and social support. These findings are identified with the factors of resiliency considered above. According to these results, this article suggests the following. The anti -poverty policy in the future should focus not only on a direct resource offer but also on resource management and the control of appraisal that can magnify its effects. In particular, close attention should be paid to school children since they are in the most crucial period for socialization. Moreover, an emotional labor is such an essential resource for intervention that skilled nurses should play pivotal roles.

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