• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.3
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• pp.586-597
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• 2001

EThe purpose of this study was to investigate the relationships of consumers psychological characteristics, store types and impulse buying behaviors of apparels. We collected data from 469 consumers of women college student living in Pusan and analysed by factor analysis, frequency analysis, correlation analysis, t-test and $\chi$$^2$-test. The results were as follows: First, The sensation seeking tendency consisted of the Change seeking, Risk seeking, Artistic seeking, Curiosity seeking and Unusual seeking. The exploratory behavior of apparels were divided into six factors; Particularity exploration, Innovation exploration, Store exploration, Brand royalty exploration, interpersonal exploration and brand-seeking exploration. Second, In comparison with the unimpulse-buying group, the impulse-buying group intended more then Change seeking, when apparel explored, Particularity exploration, Innovation exploration and Brand exploration. Impulse-buying group preferred the department store, unimpulse-buying group did the specialty store.

• Journal of Korean Society of Disaster and Security
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• v.10 no.1
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• pp.11-17
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• 2017

The case study on ground subsidence was conducted and the cause of ground subsidence was evaluated, main cause were insufficient site exploration, inaccurate strength parameters, defective temporary wall, insufficient reaction for boiling and heaving, excessive excavation and so on. Risk factors during excavation were identified from the cause of ground subsidence and risk factors were site exploration, selecting excavation method, structure analysis, measurement plan, excavation method construction, underground water level change, natural disaster and construction management. The survey of the experts on risk factors identified was conducted to evaluate the importance of risk factors, and confidence analysis was performed to evaluate the significance level between survey result and survey respondent using Chi-square Test.

• Journal of the Korean Society of Marine Environment & Safety
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• v.26 no.6
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• pp.634-643
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• 2020

Because of the continuous increase in the demand for and importance of marine space, marine exploration and survey activities are being actively conducted in Korea actively. Because the marine survey vessels used for these activities have special operational patterns depending on the purpose and probe vessels, research on maritime traffic risk is required. In this study, an attempt was made to determine the correlation of each factor with the effect of marine exploration and survey vessel operation on maritime traffic. The status of ocean exploration and survey vessels in operation in Korea was identified, as well as the special operational conditions of some of the ocean physical probes. Generally, the number of exploration and survey vessels involved per hour, total vessel length(including exploration equipment), operation, interval distance of exploration as per plan, and marine traffic conditions(traffic volume and speed) can be classified as operating factors. To compare the results of the environmental stress, a maritime traffic flow simulation based on the "ES" Model was performed with each of the identified operating factors as independent variables. The results of the analysis confirmed that the environmental stress significantly changed in the order of traffic volume, ship length and speed. In addition, it was confirmed that the environmental stress is reduced when the operation course is set at an angle with the nearby maritime traffic flow. Accordingly, it can help reduce the operator's burden if the survey vessel operator understands nearby maritime traffic conditions and reflects them in the operation method when setting the operation plan.

• Health Policy and Management
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• v.32 no.1
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• pp.45-52
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• 2022

Background: There are regional variations in the incidence of coronavirus disease 2019 (COVID-19), which means that some regions are more exposed to the risk of COVID-19 than others. Therefore, this study aims to investigate regional variations in the incidence of COVID-19 in Korea and identify risk factors associated with the incidence of COVID-19 using community-level data. Methods: This study was conducted at the districts (si·gun·gu) level in Korea. Data of COVID-19 incidence by districts were collected from the official website of each province. Data was also obtained from the Korean Statistical Information Service and the Community Health Survey; socio-demographic factor, transmission pathway, healthcare resource, and factor in response to COVID-19. Community risk factors that drive the incidence of COVID-19 were selected using a least absolute shrinkage and selection operator regression. Results: As of June 2021, the incidence of COVID-19 differed by more than 80 times between districts. Among the candidate factors, sex ratio, population aged 20-29, local financial independence, population density, diabetes prevalence, and failure to comply with the quarantine rules were significantly associated with COVID-19 incidence. Conclusion: This study suggests setting COVID-19 quarantine policy and allocating resources, considering the community risk factors. Protecting vulnerable groups should be a high priority for these policies.

• International Journal of Human Ecology
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• v.8 no.2
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• pp.61-74
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• 2007

Adolescents from stepfamilies have been considered as at-risk group of mental and behavioral problems. This study aims to determine whether there is a group difference of emotional or behavior disturbance between young people in step and non-stepfamilies and whether risk factors linked to emotional and behavior symptoms of young people in stepfamilies are different from those of girls in non-stepfamilies. The study used 'the Mental Health of Children and Young People in Great Britain, 2004 (MHCYP 2004)'. In the MHCYP 2004, the Rutter Problem Behavior Questionnaire, the Strengths and Difficulties Questionnaire (SDQ), and Child Behavior Checklist (CBCL) were administered to parents, teachers, and children drawn from young people aged 5-17 living in private households in England, Scotland (including the Highlands and Islands) and Wales. The total of 2,471 samples of aged 13 through 17 from them were selected for this study. The selected data was analyzed using SPSS. The findings showed group differences in emotional and behavior symptoms between young people in step and non-stepfamilies: Young people from stepfamilies were more emotional and have behavioral disturbances than those from nonstepfamilies. The result also confirmed the different risk factors associated with emotional behavior problems. The study supports that professionals need to develop effective treatment and preventive approaches designed for young people in stepfamilies who may have different risk factors different from those in non-stepfamilies.

• Journal of IKEEE
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• v.23 no.4
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• pp.1150-1156
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• 2019

This paper explores a model-free value-based approach for solving survival gridworld problem. Survival gridworld problem opens up a challenge involving taking risks to gain better rewards. Classic value-based approach in model-free reinforcement learning assumes minimal risk decisions. The proposed method involves a hybrid on-policy and off-policy updates to experience roll-outs using a modified Q-based update equation that introduces a parametric linear rectifier and motivational discount. The significance of this approach is it allows model-free training of agents that take into account risk factors and motivated exploration to gain better path decisions. Experimentations suggest that the proposed method achieved better exploration and path selection resulting to higher episode scores than classic off-policy and on-policy Q-based updates.

• Journal of the Korean Geotechnical Society
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• v.34 no.11
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• pp.93-105
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• 2018

Precise investigation and interpretation of the ground subsidence risk factors needed to predict and evaluate the settlement problems of the surrounding ground due to the ground excavation. There are various geophysical exploration methods to investigate the ground subsidence risk factors. However, there are factors that influence the characteristics of the underground medium in these geophysical methods, and the actual soil contains complex factors affecting geophysical exploration. Therefore, it is necessary to analyze the effects on the geophysical methods based on the understanding of the geotechnical properties of soil. In this study, a test bed was constructed to consider various complicated factors in the complex ground and the ground behavior was analyzed by numerical analysis. In addition, we analyzed the limitations on investigating the ground subsidence risk factors through ground penetration radar (GPR) survey. As a result, ground subsidence of Open-cut Type Excavation is caused by various factors. Especially, in the case of soft ground condition, it was found that it was greatly influenced by the flow change of groundwater level. At the center frequency of GPR of 250 MHz, the attenuation of the electromagnetic wave is severely attenuated in the clay with high electrical conductivity, making it difficult to penetrate deeply into the ground (4 m below the surface). As the electromagnetic waves pass through the groundwater level below the groundwater, the attenuation of the electromagnetic waves becomes severe.

• Journal of Korean Society of Disaster and Security
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• v.10 no.1
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• pp.47-53
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• 2017

Accurate exploration of the risk factors of the ground subsidence is needed to predict and evaluate the subsidence of the surrounding ground due to the excavation of the ground. In this study, we analyzed the distribution of soil relaxation area by analyzing the behavior around the ground excavation site and simulated the GPR exploration under various conditions. As a result, Although there are some differences according to the water content, distribution of the strata and the distribution of the relaxation region were confirmed in the unsaturated soil, and it was found that there was a difficulty in the GPR exploration in the saturated soil.

• Korean Journal of Culture and Social Issue
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• v.14 no.1_spc
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• pp.273-298
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• 2008

The purpose of this study is to explore a risk and a protective factors of adolescent runaway based on the previous researches. Runaway of adolescents is increasing, and it is longer and more habit gradually than past. The prevailance methods of runaway is no longer effects on the decrease of adolescent runaway. Now there is to accept adolescent runaway, and has to support the difficult life conditions and the emotional distress of adolescent post-runaway. This means that must be identify and treatment the protective factors having an buffering effect as well as the risk factors influencing on runaway. Although the worse factors related family are the highest risk factors of runaway, others factors including negative peer relation, a academic stress also an have significant influence on runaway. And the protective factors mediating the negative influence of risk factors are an monitoring and controlling of parent as authoritative rearing attitude, a social support, a positive coping strategies, a self-esteem, and a conventional peer group. Protective factors prevent from runaway behavior, as well as improve a resilience of adolescents in the poor environment. The tasks of follow study are to investigate empirically the mediating effects of the protective factors on the problem behavior of post-runaway and resilience of runaway adolescents based on the systematic research design.

• Korean Security Journal
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• no.37
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• pp.83-108
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• 2013

Since the end of the Cold War and rapid globalization and technical developments, terrorist groups actively involved in criminal activities. Also criminal entrepreneurs became a major financial revenue for these terrorists groups. This newly patternized activities among terrorist groups is now called as Crime-Terror Nexus" indicating the changing nature of terrorism, which means two traditionally separate phenomena, crime and terrorism, became more similar. This new pattern of terrorism is considered to create synergy for the criminal organizations and terrorist groups, scholars believe that it would become a significant threat to the security of world community in the near future. Although the phenomenon of this crime-terror nexus is significant and imminent threats, there is lack of studies investigation this new evolution of terrorism with empirical data. Moreover there is literally no studies exploring factors relevant to the Crime-Terror Nexus. Therefore, this current study aims to conduct explorative investigation of factors affecting the "Crime-Terror Nexus" with a world terrorism data, MAROB(the Minorities at Risk Organizational Behavior), which is developed by START and Minority at Risk project and contains information terrorist groups in Middle-East and Africa region. Considering the significance of this new terrorism patterns and the challenging nature of conducting empirical studies on this topic, this study has great contribution on the development in the field of criminal justice as well as terrorism.