• Korean Journal of Psychosomatic Medicine
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• v.8 no.2
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• pp.165-171
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• 2000

Objectives : Alopecia areata has been known to be closely related to stress. The purpose of this study is to examine the relationship between stress and alopecia areata investigating how life events(which alopecia areata patients experience), amount of stress, coping strategy, and their personality type affect the oneset and aggravation of the disease. Methods : The subjects were 43 alopecia areata patients who visited the department of dermatology outpatients clinic, and 36 fungal infection diseases patients as the control group. They all completed Scale of Life Events, Coping Style Cheklist, Eysenck A-type Personality Inventory. The analysis of covariance with the age as covariate was carried out. Results : Compared to the control group, alopecia areata patients had significantly more stressful life events, and higher amount of stress, but there was no significant difference in coping strategy. Type A Personality is also resulted to have no significant relationship to alopecia areata. Conclusions : Alopecia areata patients had significantly higher amount of stress than the control group, and this result is consistent with the previous studies which suggest that stress contributes to the oneset of alopecia areata. The causual relationship between stress and alopecia areata should be further examined in order to be applied in clinical setting.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.33 no.4
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• pp.74-99
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• 2020

Objectives : The purpose of this study is to assess the effectiveness and safety of Socheongryong-tang(SCRT) for allergic rhinitis(AR). Methods : We searched randomized controlled trials(RCTs) that used SCRT for AR in 8 databases(PubMed, Cochrane Library, CNKI, CiNii Articles, OASIS, NDSL, KISS, KMbase) from their inception until August 2019. The primary outcome was effective rate and scores evaluating the improvement of AR symptoms. The secondary outcome was quality of life scale, adverse events, recurrence rate, and laboratory indicators. Two researchers assessed the risk of bias in the included trials through the Cochrane Risk of Bias tool independently. The study synthesized outcomes using RevMan 5.3. Results : Eighteen RCTs involving 1686 participants were included in this review. The risk of bias was unclear for the majority of the included studies. Meta-analysis of 12 RCTs showed that there was no statistically significant difference between the SCRT group and usual care group in the effective rate(RR 1.18, 95% CI(0.98, 1.41), p=0.09, I²=46%). Meta-analysis of 5 RCTs showed that the combination treatment group of SCRT and usual care was significantly higher than the usual care group in the effective rate(RR 1.24, 95% CI(1.12, 1.38), p<0.0001, I²=0%). The SCRT group was more effective in improving nasal symptoms and quality of life than the placebo group according to one RCT. Mild adverse events such as dry mouth were identified in 5 RCTs, but no serious adverse events were reported. Conclusion : This review showed that in terms of the effective rate for AR, there was no statistically significant difference between SCRT and usual care and the combination treatment of SCRT and usual care was more effective than usual care. There were no serious adverse events. However, it is difficult to make a definite conclusion because of few included studies and heterogeneity between studies, and the quality of included studies was mostly insufficient. Further well-designed randomized controlled trials are needed.

• International Area Studies Review
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• v.20 no.4
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• pp.185-201
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• 2016

Korean universities has promoted the entrepreneurship education. University entrepreneurship education has three methods(entrepreneurship lecture, startup events, and institutional supports). This study examined that university entrepreneurship education has how to affect students entrepreneurial intentions. For the empirical investigation of the hypotheses of this study, surveys have been carried out 100 university students who are studying entrepreneurship education in Gangneung area during september 2016. The results of the empirical analysis are as follows : First, venturing space has a significant impact to entrepreneurial intention. Second, entrepreneurship lecture, start-up events, and mentoring does not affect entrepreneurial intention. As a result of this study, university students in Gangneung proved that entrepreneurship lecture, start-up events and mentoring did not affect the entrepreneurship intention. On the contrary, venturing space has a significant impact to entrepreneurship intention. This results suggest that improve entrepreneurial intention of university students needs practical assistance for start-up. This study has limitations have the generalization. The results are limited to Gangneung area, if this study has increase sample surveys or magnify area, it is possible to have produce different results.

• The Korea Journal of Herbology
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• v.35 no.1
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• pp.45-55
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• 2020

Objectives : The purpose of this study is to determine whether Rhus verniciflua Stokes with Latin name Lacca Sinica Exsiccata, and Eucommia ulmoides Oliver with Latin name Eucommiae Cortex Extract Combination (ILF-RE) improves laboratory test results in participants with liver function disorder. Methods : This study was conducted at Woosuk university Korean medicine hospital where participants with high serum alanine transaminase (ALT) levels from 45 to 135 U/L were enrolled. Subjects received ILF-RE 3.6 g (1.2 g/day as ILF-RE) or placebo 3.6 g for 12 weeks. It was confirmed that urushiol was not detected in ILF-RE. The primary outcomes were the decrement degree of serum ALT and gamma-glutamyl transferase (GGT) levels between two groups. The secondary outcomes were the decrement degree of serum aspartate transaminase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LD), total bilirubin, total cholesterol, triglyceride (TG) and fatty liver index (FLI) levels between two groups. Adverse events, skin prick tests, laboratory tests, and vital signs were observed and analyzed to confirm the safety of ILF-RE.1) Results : In the ILF-RE group, the liver function index ALT, GGT, lipid metabolism index TG, and fatty liver index FLI were significantly decreased compared to the placebo group. There was no significant difference in ILF-RE group in terms of adverse events, severe adverse events, skin prick test, laboratory test, and vital signs compared with placebo group. Conclusions : ILF-RE was found to be effective in improving liver function. In addition, no clinically significant adverse events or body changes were observed during this study.

• Journal of Korea Trade
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• v.27 no.3
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• pp.21-42
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• 2023

Purpose - This paper investigates the trade effect of the Korea-China Free Trade Agreement (KCFTA) which coincides with political conflicts between the two countries due to the deployment of the Terminal High Altitude Area Defense (THAAD) in Korea. The two events occurred in the same year and both are likely to affect trade between two countries but in opposite directions. Therefore, it is crucial to distinguish between the trade effects from the KCFTA event and those from the THAAD event to evaluate the true FTA effects. However, this would be difficult when using only annual data. Accordingly, ex post studies to examine the trade effects of KCFTA are lacking in trustworthiness while many ex ante studies that conjecture the positive trade effects neglect the THAAD deployment impact. This paper aims to fill that gap. Design/methodology - Given that the KCFTA and THAAD events occurred in the same year but in different months, we use the monthly data from 2000 to 2019 of Korea's exports to bracket this period. We employ the difference-in-difference (DID) method within a gravity equation specification that uses hi-dimensional fixed effects to address various endogeneity issues and seasonal effects. We identify the net impact of KCFTA ratification from these two near-simultaneous events to quantify the effects of trade liberalization between these two countries. Findings - After isolating the THAAD effects on trade, the analysis creates a positive and statistically significant coefficient estimate of the KCFTA impact. In contrast, failing to isolate the THAAD effect produced a negative and statistically significant coefficient estimate of the KCFTA impact. Our results indicate that KCFTA independently increased Korea's exports to China by 10.2%, but that this increase was fully mitigated by the THAAD event. Further, our results verify that unobserved heterogeneity and multilateral resistance are technically difficult to account for in those estimations as that rely solely upon annual data, as this type of data are inadequate to control for the potential for endogeneity. Originality/value - This paper is one of the first studies to carefully evaluate the net trade effects of the KCFTA on Korea's largest trading partner while isolating the impact of simultaneously occurred political events that may influence trade in opposing directions. Our findings indicate that the lack of prior evidence of positive trade effects of the KCFTA when using annual data may be attributed to a failure to identify the impact of each event separately. This analysis supports using the correct modeling specification to avoid misleading conclusions when evaluating any important international trade policy.

• The korean journal of orthodontics
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• v.50 no.6
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• pp.373-382
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• 2020

Objective: To compare computer-aided design and computer-aided manufacturing (CAD/CAM) customized nitinol retainers with standard stainless-steel fixed retainers over a 12-month study period. Methods: This randomized controlled trial (RCT) was conducted on 62 patients randomly allocated to a control group that received stainless-steel retainers or a test group that received customized CAD/CAM nickel-titanium retainers. Four time points were defined: retainer placement (T0) and 1-month (T1), 6-month (T2), and 12-month (T3) follow-up appointments. At each time point, Little's irregularity index (LII) (primary endpoint) and dental stability measurements such as intercanine width were recorded in addition to assessment of periodontal parameters. Radiological measurements such as the incisor mandibular plane angle (IMPA) were recorded at T0 and T3. Failure events (wire integrity or debonding) were assessed at each time point. Results: From T0 to T3, LII and other dental measurements showed no significant differences between the two groups. The data for periodontal parameters remained stable over the study period, except for the gingival index, which was slightly, but significantly, higher in the test group at T3 (p = 0.039). The IMPA angle showed no intergroup difference. The two groups showed no significant difference in debonding events. Conclusions: This RCT conducted over a 12-month period demonstrated no significant difference between customized CAD/CAM nickel-titanium lingual retainers and standard stainless-steel lingual retainers in terms of dental anterior stability and retainer survival. Both retainers eventually appeared to be equally effective in maintaining periodontal health.

• Journal of Digital Convergence
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• v.15 no.6
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• pp.505-511
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• 2017

The purpose of this study is to identify the characteristic of the length of sentence of sports news articles compared with other sections, other newspaper and sports events. In order to achieve this purpose, 4 daily newspapers(Chosun Ilbo, Dong-A Ilbo, Kyunghyang Shinmun and MKsports) were selected as research sources. The length of sentence of collected articles was analyzed by One way ANOVA and Scheffe as post-hoc. The results of these analyses are summarized into three as follows: First, the length of sentence of news articles has significant difference by sections. To put it concretely, the sentences in politics section were the longest, and then economy, editorials comes. The sports section has the shortest sentences. Second, the length of sports articles has significant difference by newspapers. In particular, MK sports which is a sports-oriented newspaper has the shortest in the length of sentence of sports articles than other newspapers such as Chosun, Dong-A and Kyunghyang. Third, the length of sentence of sports articles has significant differences by the sports events. More specifically golf is the longest, and then basketball, soccer and baseball follows.

• The Korean Journal of Rehabilitation Nursing
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• v.4 no.2
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• pp.198-206
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• 2001

The purpose of this study is to compare sexual concerns and adjustment between men and women with spinal cord injuries. A total of 108 persons (67 men and 41 women), registered to the Spinal Cord Injury Organization or admitted at rehabilitation unit from February 1999 to February 2000, were selected as subjects of the study. Participants answered the questionnaires concerning importance of life events, sexual concern, sexual adjustment, relationship with a sex partner, and depression. The results are as follows : 1) There were no significant differences between men and women in the general characteristics except sexual dysfunction. 2) With respect to eleven different life areas, sex life ranked the fifth among men, whereas it occupied the lowest position for women among the 11 areas. However economic status was the most highly-ranked for both sex. 3) Men took much interest in the "methods and techniques for achieving sexual satisfaction", "Helping a partner cope emotionally with limitations on sexual activity", whereas women were interested in "Helping a partner cope emotionally with limitations on sexual activity" and "Ability to have children". 4) The means of sexual adjustment, relationship with a sex partner, and depression among men were higher than women. But there was no significant difference between two groups. As a result, the study suggests that there are no significant differences in the general characteristics between men and women with spinal cord injuries except sexual dysfunction. Men evaluated the sexual events highly compared to women, and differences were also shown in terms of sexual concerns between men and women. Therefore differential approaches to sexual rehabilitation are required; in both socio-psychological and physical aspects for men and particularly in socio-psychological respect for women.

• Journal of Chest Surgery
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• v.50 no.1
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• pp.14-21
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• 2017

Background: Off-pump coronary artery bypass (OPCAB) is performed worldwide, but significant risks are associated with conversion to on-pump surgery. Therefore, we evaluated the composite outcomes between an OPCAB group and a conversion group. Methods: From January 2008 to December 2012, 100 consecutive patients underwent OPCAB at Hallym University Sacred Heart Hospital, of whom 84 underwent OPCAB without adverse events (OPCAB group), and 16 were converted to on-pump surgery (conversion group). Early morbidity, early and long-term mortality, and major adverse cardiac and cerebrovascular events (MACCEs) were the primary and long-term composite endpoints. Results: The mean follow-up period was $55{\pm}26months$, with 93% of the patients completing follow-up. The composite outcomes in the OPCAB and conversion groups were as follows: early morbidity, 2.3% versus 12.5%; early mortality, 4.7% versus 0%; long-term mortality, 14.3% versus 25.0%; and MACCEs, 14.3% versus 18.8%, respectively. No composite endpoints showed statistically significant differences. Preoperative acute myocardial infarction (AMI) was identified as an independent risk factor for conversion (p=0.025). Conclusion: The conversion group showed no statistically significant differences in early mortality and morbidity, MACCEs, or long-term mortality compared with the OPCAB group. The preoperative diagnosis of AMI was associated with an increased number of conversions to on-pump surgery.

• Korean Journal of Ecology and Environment
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• v.51 no.1
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• pp.135-147
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• 2018

In order to investigate the runoff characteristics of nonpoint source pollutants in the Lake Doam watershed, water quality and flow rate were monitored for 38-rainfall events from 2009 to 2016. The EMC values of SS, COD, TN and TP were in the range of 33~2,169, 3.5~56.9, 0.09~7.65 and $0.06{\sim}2.21mg\;L^{-1}$, respectively. As a result of analyzing the effect of rainfall factor on the nonpoint source pollutant load, EMCs of SS, COD and TP showed a statistically significant correlation with rainfall (RA) (p<0.01) and SS showed highly significant correlation with maximum rainfall intensity (MRI, R=0.48). The load ranges of SS, COD, TN and TP were 10.4~11,984.6, 1.1~724.4, 0.6~51.6 and $0.03{\sim}22.85ton\;event^{-1}$, respectively, showing large variation depending on the characteristics of rainfall events. The effect of rainfall on the load was analyzed. SS, COD and TP showed a positive correlation, but TN did not show any significant correlation. The annual load of SS was the highest with $88,645tons\;year^{-1}$ in 2011 when rainfall was the highest with 1,669 mm. The result of impact analysis of nonpoint source pollution reduction project and land-use change on runoff load showed that pollutant load significantly reduced from 2009 to 2014 but SS and TP loads were increased from 2014 to 2016 due to increase in construction area. Therefore, we suggested that nonpoint source pollution abatement plan should be continued to reduce the soil loss and pollutants during rainfall, and countermeasures to reduce nonpoint source pollution due to construction need to be established.