• Anxiety and mood
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• v.8 no.1
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• pp.22-30
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• 2012

Objective : We investigated whether Posttraumatic stress disorder patients have a higher tendency to exaggerate the extent of their psychological symptoms compared to other psychiatric patients. Methods : Medical records of patients, who had received psychiatric treatment at four university hospitals in Korea between January 2009 and December 2010, were retrospectively reviewed. We compared a group of 37 patients diagnosed with PTSD, and another group of 41 patients diagnosed with neurotic, stress-related and somatoform disorders according to the ICD-10. To compare the extent of malingering in the two groups, we compared the validity scales of MMPI-2 and Personality Assessment Inventory. We determined the number of participants in both groups feigning their responses by using various cutoff scores of the validity indicators. Results : The PTSD group showed significantly higher scores on the F (p=0.001), F (B)(p=0.000), F (P)(p=0.030), F-K (p=0.003) scale of the MMPI-2 compared to the other group of psychiatric patients. The PTSD group had a significantly higher NIM score (p=0.001) but a lower PIM score (p=0.020) of the PAI compared to the other group of psychiatric patients. Using the cutoff scores, the PTSD group showed a significantly higher number of patients who feigned responses compared to the other group ($Fb{\geq}75$ (p=0.010), $F-K{\geq}1$ (p=0.005), $F-K{\geq}10$ (p=0.011) from the MMPI-2, and $NIM{\geq}80$ (p=0.001) from the PAI). Conclusion : These results suggest that PTSD patients have a tendency to exaggerate their symptom. This group of patients overreported the severity of their condition during standardized personality assessment that included the MMPI-2 or PAI compared to patients diagnosed with other psychiatric disorders. Additional research is required to determine the factors influencing symptom exaggeration in PTSD.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.40-46
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• 2019

The purpose of this study is to investigate the effect of positive psychological capital on re-employment attitudes of youth in their 20s dealing with an unemployment rate of more than 10%. The effect of positive psychological capital on attitudes for re-employment was analyzed by domain, and is based on variables of positive psychological capital composed of self-efficacy, hope, resilience, and optimism. As a result, hope (3.64) was the highest on the scale; however, resilience (at 3.37) was the lowest. In the analysis of positive psychological capital, the university graduate group (3.89) was the highest. But, the high school graduate group (3.25) was the lowest. In the results for re-employment attitude based on education level, the university graduate group (4.93) was the highest, but the high school graduate group (3.80) was lowest. The main variables influencing re-employment attitude were (in order): hope, optimism, self-efficacy, and resilience. These factors have an explanatory power for the four variables of around 25%. Overall, young adults (in their 20s) have higher levels of positive psychological capital because they have a higher education level. Also, higher educated re-employed applicants have higher positive psychological capital and attitudes for re-employment, compared to the other groups.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.351-357
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• 2019

This study was conducted to evaluate outpatient experiences of a general hospital and help identify the medical service status experienced by the patients in the overall process of outpatient care, and analyze the major factors influencing patient experience and perception. A total of 100 patients having more than 2 outpatient clinic visits at a university hospital from May 14, 2018 to May 28, 2018, were selected to participate in the survey, comprising 60.0% females and 40.0% males. Considering age, majority belonged to the >60 years old age group (53.0%) as compared to <59 years (47.0%). "Hospital is close by" was the highest motivation to visit the hospital (42.0%), followed by "Medical staff is skilled" (36.0%), "Recommended by another hospital" (7.0%), and "Recommended by people" being the lowest (1.0%). Taken together, the results of this study can be used as basic data to identify the issues for providing better patient-centric medical services, and to formulate plans for creating medical services that meet the patient needs and differentiated medical services.

• Journal of Digital Convergence
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• v.17 no.10
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• pp.479-487
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• 2019

The study sought to reveal the impact of focusing attitudes and cognitive emotion regulation on post-traumatic growth for adolescent athletes with trauma experiences. A preliminary survey was conducted on 215 middle and high school athletes in the S city and K provinces. The impact of focusing attitudes and cognitive emotion regulation on post-traumatic growth was verified using validated questionnaires. The results for the purpose and method of study are as follows. Focusing attitudes and cognitive emotion regulation of adolescent athletes affect post-traumatic growth. Positive reappraisal was the most influential factor affecting post-traumatic growth, followed by the factors influencing the aware, acceptance, accept, reflect and positive refocusing. In order to experience post-traumatic growth through the results of this study, it is important to understand the overall understanding and tactics of focusing attitudes and cognitive emotion regulation. Therefore, effective psychological training methods will be needed to positively control the level of focusing attitudes and cognitive emotion regulation among adolescent athletes.

• Korean Journal of Environment and Ecology
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• v.33 no.5
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• pp.565-577
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• 2019

The purpose of this study was to understand the factors influencing the decline and the patterns of changes in Abies nephrolepis populations on Mt. Seorak. We installed permanent quadrats in the areas of the Gwittagicheongbong (peak), Gwanmoneungseon (ridge), and the Seorak Falls and have monitored the community structure, population dynamics, radial growth, and vitality in the quadrats since 2009. Excluding the Seorak Falls, the three research sites showed a three-layer structure in which the low-tree layer forms the canopy. Major tree species were Khingan fir, Korean arborvitae, Mongolian oak, Erman's birch, and Korean maple. The significance of Khingan fir in Seorak Falls decreased from 45.3% in 2009 to 36.8% in 2018. The number of shoots ($DBH{\geq}5cm$) was highest at 1,800 individuals/ha and 1,700 individuals/ha at the Gwittagicheongbong 2 and the Gwanmoneungseon, respectively. The mortality rates over the past 10 years were very high, at 38.3% and 35.3%, respectively, in the Gwittagicheongbong 1 and Seorak Falls. The most stable inverse J-shaped distribution in the Gwittagicheongbong 1 area was shown in the size-frequency distribution of the Khingan fir populations. The average annual ring growth of the Khingan fir was 0.96 ~ 1.73 mm/year, and the ring growth tended to decrease in the areas of Gwittagicheongbong 1, Gwanmoneungseon, and Seorak Falls, where the vitality was low. If the monitoring process continues, it will be possible to obtain basic data for the conservation and management of subalpine vegetation.

• Journal of the Korea Society for Simulation
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• v.29 no.3
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• pp.57-72
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• 2020

To respond to the threat of Long range artillery of North Korea, it is necessary to establish the Korean counter long range artillery intercept system(CLRAIS). The purpose of this study is to study the operational concept of the CLRAIS against the threat of long range artillery of North Korea, and to develop the operational effectiveness process of the CLRAIS. First, we set up the operating concept of the CLRAIS and established the concept of an effectiveness in a many-to-many engagement situation and a process to derive it. Based on this, a tool was developed to analyze the actual effectiveness. In order to find out the factors influencing the effectiveness in many-to-many engagement situations, simulation experiments were performed by combining various variables such as detection assets, engagement control, and launchpad performance. As a result, it was found that in addition to the missile performance, the performance of the detection assets and the engagement control center had a significant impact on the intercept rate and the defense success rate. These findings can be used to understand important indicators in terms of effectiveness in many-to-many engagement situations in the future development of weapon system, and to determine the development direction and target value of each element necessary for the level of defense success rate to be achieved.

• Journal of the Korean Society for Railway
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• v.19 no.4
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• pp.539-546
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• 2016

It is over 12 years since the launch of Korea Train eXpress (KTX) services. Demand for the KTX has been on the increase continuously but few studies have been produced related to this phenomenon. KTX passenger demand has been constantly increasing due to influencing factors such as the expansion of network, rise of oil prices, etc. In this study, our main focus is to verify that there are other types of elements that are causing an increase in KTX demand; our approach looks at changes in social and psychological aspect that have occurred due to the reduction of travel time and cost, as well as the imposition of a five-day workweek. In other words, we considered diffusion theory in the marketing area, which affects product selection and purchasing attitudes, as a key factor that is causing passenger demand to increase. That is to say that it is hypothesized that the demand for travel on the KTX has increased due to the train's utility, which is spread by the diffusion effect Therefore, the Bass diffusion model was applied to explain the dramatic increase in KTX passenger demand. Based on this foundation, it was also discussed how certain marketing strategies that incorporate the diffusion effect should be considered variously for sustainable management of rail transportation, while considering a steady passenger demand.

• Journal of The Korean Association of Information Education
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• v.25 no.4
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• pp.591-601
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• 2021

This study focuses on the ICT literacy, the perceived value of ICT utilization, and the perceived use of ICT environment as the factors influencing the activation of ICT using classes, in order to identify how these differences affect intended use of ICT. A total of 3,942 high school teachers participated in the survey. Two factor analyses were conducted to verify and check the validities of measurement items for independent and dependent variables. With the research questions, a multiple regression analysis was implemented to verify the predictive power of the independent variables on the teachers' ICT utilization. All the independent variables set in the research issue had a significant influence on the intended use of ICT, which is a dependent variable. ICT utilization was found as the most influential variables followed by the perceived value of ICT utilization, the affective domain of ICT literacy, and the psychomotor domain of ICT literacy, the cognitive domain of ICT literacy, and the perceived use of ICT environment. In order to enhance teachers' ICT utilization in school settings, teachers should understand the educational value of ICT utilization and recognize its necessity and importance.

• Journal of Wetlands Research
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• v.23 no.4
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• pp.296-306
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• 2021

Elasticity is a statistical technique that interprets the changing pattern of another variable according to a change in one variable as a quantitative numerical value and provides more information than correlation analysis and is widely used in climate change research. In this study the elasticity was calculated and sensitivity analysis was performed using air temperature and water quality data of the major tributaries of the Nakdong River. In addition the confidence interval for the elasticity was calculated using the T-Test and the validity of the elasticity was examined. The strength of elasticity shows high strength in the order of summer>fall>spring>winter and the direction shows regional characteristics with both negative and positive elasticity. After performing hierarchical cluster analysis on monthly observation data they were classified into 5 clusters and the characteristics of each cluster were visually analyzed using a parallel coordinate graph. The direction and intensity of the air temperature elasticity show regional characteristics due to the relatively high population density and complex influencing factors such as sewage treatment plants, small-scale livestock houses and agricultural activities. In the case of TP it shows great regional variability according to the circulation of nutrients in the ecosystem caused by algae growth and death according to temperature changes. Since the air temperature elasticity of the major tributaries of the Nakdong River is over weak and is valid at the significance level of 5%, it was analyzed that there is a change in water quality according to the air temperature change.

• Journal of the Korean Society of Radiology
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• v.15 no.5
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• pp.683-690
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• 2021

The purpose of this study was to confirm the degree of academic achievement among university students in the Department of Radiology(science) who are in the continuation of the COVID-19 situation and to investigate the effect of smart media literacy and ego-resilience on academic achievement. The research method was descriptive research. Data was 188 students collected from June 1 to July 31 in 2021 using structured questionnaires as students in the Department of Radiology(science). Collected data was analyzed using descriptive statistics, t-test, ANOVA, Cronbach's pearson's correlation, multiple regression analysis with SPSS/WIN 21.0. The result of the study showed that the academic achievement was 3.43, ego-resilience was 3.37 and smart media literacy was 2.94. There was a significant positive correlation between a academic achievement and smart media literacy, academic achievement and ego-resilience. Factors influencing academic achievement were smart media literacy, ego-resilience, major satisfaction and practice satisfaction. As a result of the above research. it is necessary to develop and apply curriculums, extra curriculums and educational programs that improve the smart media literacy and ego-resilience in order to improve the academic achievement. In addition, it is necessary to improve major satisfaction and practice satisfaction.