• Journal of Korea Entertainment Industry Association
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• v.13 no.8
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• pp.583-593
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• 2019

The purpose of this study was to investigate the relation between and subjective instability pain behavior (SIPB) and physical instability test(PIT) according to the presence of characteristic past histories(CPH) in people with chronic low back pain(CLBP). Forty CLBP subjects participated in this study. The presence of four characteristics past histories(long term history, traumatic experience, sports activities, neurologic sign) were examined. According to presence number(PN) of CPH, subjects were divided into 5 groups[group 1(PN:0): n=8, group 2(PN:1): n=8, group 3(PN:2): n=8, group 4(PN:3): n=8, group 5(PN:4): n=8]. After 16 items were examined for the SIPBs, then Seven PITs were conducted, and the results were scored. The SIPBs and PITs were compared according to the presence numbers of CPH, and the relation between them was analyzed. There was a significant difference(p<.05) in both SIPB scores and PIT scores in the comparison of groups according to the presence number of CPH. There was high positive correlation between the presence numbers of CPH and SIPB score(r=.819, p=.000) and PIT score(r=.606, p=.000). Also, there was a correlation between SIPB score and PIT score(r=.571, p=.000). Based on the findings in the present study, the presence of three or more CPH in people with CLBP may be a useful variable in the diagnosis of lumbar instability. The combined findings of the three variables such as CPH, SIPB, and PIT can improve the accuracy of lumbar instability diagnosis.

• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.492-500
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• 2020

The purpose of this study was to investigate (1) the aspect of the correlation among subcategories in English reading anxiety, (2) the aspect of the cause and effect relation. The reading anxiety was measured by a questionnaire. Then, the results were analyzed by SPSS program. The findings of this study were as follows: First, most of the sub-elements in reading anxiety in both groups correlate with one another even though the overall coefficient of correlation in high achievement group is rather higher. Second, it is also found that the lack of confidence for reading has negative influence on entire reading anxiety in both groups, which is followed by lengthy reading, evaluation and general anxieties in consecutive order. The implication of this study is that the teachers and students should be aware that the constituents of reading anxiety not only correlate with one another, but have great deal of relative influence on reading process. Therefore, teachers should organize a learning environment where learners can minimize the feeling of anxiety.

• Journal of the Korean School Mathematics Society
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• v.13 no.3
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• pp.443-458
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• 2010

This study is about how differ math anxiety according to the features of brain preference. In order to solve questions, BPI test and math anxiety test were done to high school students in the second grade. The test sheets were analyzed by ANOVA and MANOVA using SPSS 14.0. The result was found out that math anxiety was high in the order of left-brain preferences, both-brain preferences, and right-brain preferences. High level of math anxiety among students with right-brain preferences seem to be influenced by the right brain which prefers emotional features. Therefore, students need to stimulate their left brain by writing and reading something a lot when they solve math questions. Also, teachers can lessen math anxiety of students by give them opportunities to solve step-by-step questions, using various visual teaching materials promoting students' reasoning ability which can help them solve questions in a systematic and analytic way.

• Korean Chemical Engineering Research
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• v.58 no.2
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• pp.319-324
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• 2020

Electroconvective instability is a non-linear transport phenomenon which can be found in ion-selective transport system such as electrodialysis, Galvanic cell and electrolytic cell. The instability is triggered by the fluctuation of space charge layer in adjacent of ion-selective surface, leading to increase of mass transport rate. Thus, in the aspect of mass transport, the instability has an important meaning. Although recent experimental techniques have opened up an avenue to direct visualize the instability, fundamental investigations have been conducted in limited area due to several experimental limitations. In this work, the electroconvective instability under potentiostatic mode was solved by numerical method in order to demonstrate correlation between current-time curve and the instability behavior. By rigorous time-resolved analysis, the transition behaviors can be divided into three stages; formation of space charge layer - growth of electroconvective instability - steady state. Furthermore, scaling laws of transition time were numerically obtained according to applied voltage as well.

• The Journal of the Korea Contents Association
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• v.22 no.1
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• pp.470-483
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• 2022

The purpose of this study was to examine the effect of decentering and self-silencing in a relationship between socially prescribed perfectionism and social anxiety. We predicted self-silencing would function as a mediator in this relationship, and that decentering would moderate this mediation effect. To investigate this aim, three hundred seven university students were surveyed. All variables showed statistically significant correlations, and there was no statistically significant difference in the moderating effect of decentering in the relationship between socially prescribed perfectionism and social anxiety. Conversely, this study showed that there was a significant difference in the moderating effect of decentering in the relationship between self-silencing and social anxiety. In addition, socially prescribed perfectionism affected social anxiety through self-silencing, and decentering moderated the mediating effect of self-silencing. Implications and potential follow-up studies are discussed.

• Journal of the Korea Society of Computer and Information
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• v.28 no.3
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• pp.127-135
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• 2023

The purpose of this study was to analyze the effect of university students empolyment expectation and job search burnout on job seeking anxiety. Collected data were statistically processed by PASW 18.0 program using frequency, descriptive statistics, reliability analysis, one-way ANOVA, T-test, correlation and multiple regression analysis. The results were as follows. First, it was found that university students experienced a little more anxiety about situations and causes of job insecurity than job insecurity. Second, it was found that job seeking anxiety differed according to gender, grade, monthly average household income and monthly average allowance. Third, job seeking anxiety increased more as empolyment expectations were lower and job search burnout such as inability, negative beliefs, and dehumanization were higher. Fourth, as a result of analyzing influence of variables related to job seeking anxiety, the most influential variable was inability.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.849-852
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• 2017

본 논문에서는 SNS에서 수집한 데이터를 이용하여 사회 불안의 시공간 분포를 시각화 하는 기법을 소개한다. Open API인 twitter4j를 이용하여 트위터로부터 시공간 정보를 포함한 데이터를 수집한 뒤, 이 트윗의 작성자가 불안한지 아닌지 표시한 훈련 데이터를 준비한다. 이 훈련 데이터와 한글 형태소 분석기 Open API인 KOMORAN을 이용해 사전을 구축하고, 불안 분류기를 개발한다. 트위터로부터 수집한 시공간 정보를 포함한 데이터를 분류기로 분류하여, 지도에 표시해줌으로써 사회 불안을 시각화 한다. 사회 과학자들이 이를 이용하여 불안을 체계적으로 연구함으로써 불안으로부터 생기는 다양한 사회 문제들을 해결할 수 있다.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2007.11a
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• pp.104-109
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• 2007

외상성 전방탈구의 경우 일차성 탈구이거나 일상생활에 큰 불편을 호소하지 않는 불안정성이 있을 경우 및 비외상성 다방향 불안정성의 경우 보존적 치료가 바람직하며, 10대 및 20대의 재탈구로 인한 불안정성이 유발될 경우 관절경적 혹은 개방성 Bankart 술식을 통하여 관절순의 해부학적 정복 및 술 후 잘 조절된 재활치료를 시행할 경우, 좋은 결과를 얻을 수 있다. 치료 방법의 선택 시 가장 중요한 요소는 환자의 원하는 결과를 만족 시켜줄 수 있는 치료 방법을 선택하는 것이며, 이는 불안정성의 원인, 정도, 탈구의 횟수, 환자의 활동도 및 재활 의지등을 종합적으로 감안하여 결정되어야 한다.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2009.03a
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• pp.27-29
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• 2009

견관절 전방 불안정성에서 관절와 및 상완골 결손이 동반된 경우 적절한 진단과 치료는 치료 결과에 직접적인 영향을 주므로 중요하다. 견관절 불안정성은 정적 및 동적 안정화 구조물의 손상으로 기인하며, 상완골 두감입 골절(Hill-Sachs 병변), 관절와 골절이나 전하방 관절와 가장자리의 소실 등 정상적인 관절의 해부학 구조물을 훼손시키는 골성 이상 소견이 동반되면 경우에 따라 견관절 불안정성에 영향을 끼칠 수 있다. 본 강좌에서는 견관절 전방 불안정성에서 동반된 관절와 및 상완골의 골 결손에 대하여 논하고자 한다.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 1997.11a
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• pp.12-12
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• 1997

여러 가지 형태의 연소 불안정성 중에서 50-500Hz 사이에서 발생되며 길이방향 모드(longitudinal mode)로 특징이 있는 저주파수 불안정성이 램제트 혹은 재연소기(Afterburner)의 연소 불안정성에서 가장 중요한 것이라고 여겨진다. 본 논문에서는 램제트 흑은 재연소기에서 일어날 수 있는 길이 방향의 연소 불안정성을 Modal 해석법을 사용하여 수학적인 모델로 만들었다. 특히 이 모델의 선형형태는 어떤 형태든지 선형 속도에 민감한 Burning rate 모델을 사용할 수가 있어서 보다 포괄적인 형태로 만들어져 있으며, 이 모델을 이용하여 여러 가지 연소 형상과 불완전 연소 응답 등을 연구할 수 있다. 본 논문에서는 실제 연소 형상과 유사한 삼각형 모양의 연소 형상을 사용하여 기존의 다른 모델들과 비교 분석하였다.