• 대한치과보철학회지
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• 제45권4호
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• pp.431-443
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• 2007

Statement of problem: Injuries along with discomfort may result on the oral mucosa when non-rigid material is used as the major connector in construction of RPD, since nonrigid major connectors transmit unstable forces throughout the appliance. Titanium which recently draws attention as a substitute of Co-Cr had a difficulty in fabricating due to high melting temperature but the development of casting technique makes it possible to apply to the clinical case. Purpose: The purpose of this study was to investigate the rigidity and the castability of titanium upper major connector by design and make a comparison with Co-Cr major connectors which are widely used in clinical cases now. Material and methods: Casting was done using CP-Ti(Grage 2) (Kobe still Co., Japan) for the experimental groups, and 4 various designs namely palatal strap, U-shaped bar, A-P strap, and complete palatal plate were casted and 5 of each designs were included in each group. For the experimental group, Universal testing machine (Model 4502; Instron, Canton, Mass) was used to apply vertical torsional force vertically to the horizontal plane of major connector. In the second experiment, Vertical compressive force was applied to the horizontal plane of major connector. As a comparative group, Co-Cr major connector was equally manufactured and underwent the same experimental procedures Strain rate was measured after constant loading for one minute duration, and statistical analysis was done with SPSS ver.10.0 for WIN(SPSS. Inc. USA). From the one-way ANOVA and variance analysis (P=0.05), Scheffe's multiple comparison test implemented. Results: 1. Least amount of strain was observed with complete palatal plate followed by A-P bar, palatal bar, and the U-shaped bar having most amount of strain. 2. In all designs of titanium major connector, less strain rate was observed under compressive loading than under torsional loading showing more resistance to lateral force. 3. For titanium major connector, less strain rate was observed when the force is applied to the first premolar area rather than to the second molar area indicating more strength with shorter length of lever. 4. In Comparison of Co-Cr major connector with titanium major connector, palatal strap and U-shaped bar designs showed higher strength under torsional force that is statically significant, and under compressive force, no significant difference was observed expert for U-shaped bar. 5. In titanium major connector, complete palatal plate showed lowest success rate in casting when compared with the Co-Cr major connector. Conclusion: Above results prove that when using titanium for major connector, only with designs capable of generating rigidity can the major connector have almost equal amount of rigidity as Co-Cr major connector and show lower success rate in casting when compared with the Co-Cr major connector.

• 디지털융복합연구
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• 제19권7호
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• pp.237-243
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• 2021

본 연구는 간호대학생의 첫 임상실습 전·후 간호역량과 전공만족도의 차이를 파악하여 효율적인 임상실습 교육운영을 위한 기초자료로 활용하고자 시도되었다. 단일군 사전·사후 설계로 자료수집은 2019년 2월 18일부터 4월 23일까지 간호대학생 201명을 대상으로 8주간 임상실습 전·후 이루어졌다. 수집된 자료는 SPSS/Win 23.0을 이용하여 빈도, paried t-test, 피어슨 상관관계, 회귀분석으로 분석하였다. 연구결과 첫 임상실습 후 간호역량은 실습 전보다 증가하였으나 유의하지 않았고(t=-1.73, p=.084), 간호역량의 하위요인 중 교육능력(t=-1.97, p=.050)과 윤리적 실무능력(t=-209, p=.038)은 유의하게 증가한 것으로 나타났으며, 전공만족도는 유의하게 증가한 것으로 나타났다(t=-2.45, p=.015). 임상실습 후 전공만족도의 하위요인인 일반만족, 관계만족 및 인식만족이 간호역량과 정의 상관관계가 있는 것으로 나타났으며 간호역량에 미치는 영향을 분석한 결과 인식만족이 간호역량을 9.9%로 설명하는 것으로 나타났다. 그러므로 간호역량을 향상 시킬 수 있는 임상실습 교육과정 개편 및 전공만족도 중 인식만족을 향상 시킬 수 있는 프로그램 개발 및 효과검증이 필요하다.

• 한국전문물리치료학회지
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• 제17권1호
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• pp.1-8
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• 2010

The purpose of this study was to compare EMG activity for pectoralis major muscle during shoulder movement with various abduction angle and rotation position in supine position. Fifteen healthy subjects were recruited for this study. All subjects performed shoulder horizontal adduction holding a 2 kg dumbbell in shoulder abduction $40^{\circ}C$, $70^{\circ}C$, $90^{\circ}C$, $130^{\circ}C$, $160^{\circ}C$ with shoulder neutral, internal rotation (IR), and external rotation (ER). Surface EMG activity was recorded from pectoralis major clavicle part and pectoralis major sternum part for 5 seconds and EMG activity was normalized to the value of maximal voluntary isometric contraction (%MVIC). Dependent variables were examined with 3 (Neutral, IR, ER) ${\times}$ 5 ($40^{\circ}C$, $70^{\circ}C$, $90^{\circ}C$, $130^{\circ}C$, $160^{\circ}C$) analysis of variance with repeated measures. The EMG activity of pectoralis major muscle was significantly different between shoulder abduction angles and between shoulder rotation positions (p<.05). The highest value of EMG activity of pectoralis major clavicle part among shoulder abduction angles was in $70^{\circ}C$ and, $90^{\circ}C$ in that order. The highest value of EMG activity of pectoralis major sternum part among shoulder abduction angles was in $130^{\circ}C$ and, $90^{\circ}C$ in that order. According to the rotation degree, shoulder ER showed the highest value and IR showed the lowest value in both muscle parts. These results suggest that shoulder abduction $70^{\circ}C$, $90^{\circ}C$, $130^{\circ}C$ will be effective during manual muscle testing (MMT) and strengthening exercise for pectoralis major muscle. It is also supposed that shoulder ER is the efficient posture for strengthening of pectoralis major muscle.

• 대한예방한의학회지
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• 제24권1호
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• pp.49-56
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• 2020

Objective : The purpose of this study is to determine the Work value of Korean medicine college students and check how the Work value of college students affects major commitment and major satisfaction. Method : The data for this study were collected through a self-administered survey to 207 subject from students enrolled in the University in B city. Frequency analysis, repeated measures ANOVA, multiple regression analysis were used for the statistical analysis. Results : As a result of analyzing the occupational value of students enrolled in the College of Korean Medicine, the pursuit of professionality and interest was the highest, the pursuit of achievement was the next highest, and the pursuit of diversity and change was the lowest. As a result of the multiple regression analysis, pursuit of achievement and professionality had a positive(+) effect, and pursuit of ease had a negative(-) effect on the major commitment. Also, the pursuit of professionality and interest had a positive(+) effect, and pursuit of ease had negative(-) effect on major satisfaction. Conclusion : In order to increase students' major commitment and satisfaction, it is necessary to make efforts to compose the programs and educational contents that can satisfy these values. In addition, the efforts of universities and professors are needed to help students establish the correct their work value.

• 대한지역사회영양학회지
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• 제12권3호
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• pp.247-258
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• 2007

This study was conducted to investigate weight control status and associated factors among health-related major female college students. The subjects consisted of 41 nutrition and 78 physical exercise major female college students. Nutrient intakes, biochemical index, nutrition knowledge (recognition and accuracy), interest of weight control, body satisfaction, self-recognition of health condition, self-evaluated body weight were studied. About 73% of nutrition and 79% of physical exercise major female students were in the normal range of BMI ($18.5{\sim}23$) and 2% of nutrition and 1% of physical exercise major female students were underweight, 10% of nutrition and 6% of physical exercise major female students were obese. There were no significant differences in height and weight by major but %body fat and WHR in physical exercise majors were significantly lower than nutrition major students (respectively p<0.01, p<0.05). Overall, nutrition intakes of subjects were not shown to be appropriate, especially Ca/P of subjects was shown $0.54{\sim}0.64$, fat% out of energy of subjects was shown $24.7{\sim}29.0$ and Na intake was shown above 2000mg. Recognition and accuracy of nutrition were higher than those of physical exercise majors (p<0.001). There were no significant differences in self-recognition of health condition, self-evaluated body weight, satisfaction of body shape by major and weight control attempt. But interest of weight control of attempter was higher than that of no-attempter in nutrition (p<0.05) and physical exercise major students (p<0.01). Significantly negative correlation was found in satisfaction of body and BMI, body fat mass, %bodyfat, WHR. And significantly positive correlation was found in interest of weight control and BMI, %bodyfat, WHR. It was noticeable to see that interest of weight control was positively correlated to accuracy and accuracy was negatively correlated to blood cholesterol level. Therefore, proper nutrition education for female college students is needed in order to improve their weight control-related health.

• 한국치위생학회지
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• 제15권2호
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• pp.279-286
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• 2015

Objectives: The purpose of the study is to investigate the factors influencing on self-esteem, major satisfaction, and career identity. Methods: A self-reported questionnaire was filled out by 389 dental hygiene students in three colleges located in Metropolitan area. The questionnaire consisted of 5 questions of general characteristics, 10 questions of self-efficacy, 18 questions of major satisfaction, and 13 questions of career identity by Likert 5 scale. Cronbach's alpha was 0.92 in self-efficacy, 0.90 in major satisfaction, and 0.88 in career identity in the previous studies. Cronbach's alpha in this study was 0.911 in major satisfaction, 0.840 in self-efficacy, and 0.8090 in career identity. The data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, and stepwise multiple regressions. Results: The score was 3.47 in self-esteem, 3.79 in major satisfaction, and 3.03 in career identity. There were significant differences in self-esteem and major satisfaction based on grade, motivation for entering college, and clinical practice satisfaction. In case of career identity, there were significant differences based on characteristics, motivation for college choice, and clinical practice satisfaction. There was a positive correlation between negative self-esteem, positive self-esteem, general satisfaction, awareness satisfaction, curricula satisfaction, interpersonal relation satisfaction, and career identity. The influencing factors on career identity were aptitude, interest, self-esteem, and major satisfaction in order(p<0.001). Conclusions: The career identity is closely related to self-esteem and major satisfaction. It is desirable to open a variety of education courses and to develop systematic and practical programs to the students in order to improve the career identity.

• 산업융합연구
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• 제21권4호
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• pp.91-100
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• 2023

본 연구는 졸업예정 간호대학생의 전공선택동기와 전공만족도가 간호경력몰입에 미치는 영향을 확인하기 위하여 시행되었다. 이를 위해 간호대학생 4학년 215명의 자료를 수집하였고, SPSS statistics로 t-test, ANOVA, Scheffé test, Pearson correlation coefficients, multiple regression을 사용하여 분석하였다. 연구결과, 간호대학생의 간호경력몰입은 전공선택동기(r=.41, p<.001) 및 전공만족도(r=.35, p<.001)와 정적 상관관계가 있었고, 전공선택동기가 간호경력몰입의 영향요인으로 확인되었으며 설명력은 39.4%였다. 본 연구는 졸업예정 간호대학생의 간호경력몰입 영향요인을 확인하였고, 간호대학생을 위한 긍정적인 간호경력몰입 형성 교육프로그램 개발을 제언한다.

• 산업융합연구
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• 제21권12호
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• pp.131-139
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• 2023

본 연구는 간호대학생을 대상으로 자아존중감, 공감과 우울의 주요 변인이 전공만족도에 미치는 영향을 규명하고 가설모형을 구축하여 경로분석을 통해 직·간접영향을 파악하기 위해 시도되었다. 본 연구는 2023년 3월 2일 부터 3월 30일까지 C도에 소재한 2개의 대학 200명을 대상자로, 자료분석은 SPSS 26과 AMOS 23으로 하였다. 최종 모델에서 자아존중감(𝛽=.29, p=.001), 공감(𝛽=.49, p=.001), 우울(𝛽=-.21, p=.032)이 전공만족도에 직접적인 영향을 미쳤으며 자아존중감(𝛽=.12, p=.031)은 우울을 매개하여 전공만족도에 간접효과를 나타났다. 전공만족도에 대한 공감, 자아존중감, 우울의 설명력은 36%로 확인되었다. 자아존중감과 공감을 높이는 것은 직접적으로 전공만족도를 높일 뿐만 아니라 간접적으로 우울을 낮춰 자아존중감을 높이면 전공만족도를 높일 수 있을 것이다. 따라서, 간호대학생의 전공만족도를 높이는 간호교육프로그램 개발 시 자아존중감, 공감을 높이고 우울은 낮출 수 있는 인지행동전략을 개발해야 할 것이다.

• 영어어문교육
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• 제13권1호
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• pp.27-46
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• 2007

Teachers can maximize students' L2 learning by knowing preferred learning styles. This paper presents the results of a survey that asked 309 English learners to identify their perceptual learning style preferences. It further compared students' favored learning styles in terms of their gender and major field of study and explored a possible link between learning styles and English achievement. Collected data using Reid's (1995) questionnaire were analyzed by descriptive statistics, MANOVA, ANOVA, correlations, multiple regressions including squared partial correlations, and Cronbach's alpha. The results indicated that Korean students favored English learning in group regardless of gender, while their preferred mode of learning was significantly different in regard to their major field of study. Certain learning styles might be profitable for English achievement. Multiple regression analyses revealed that individual mode of learning was the best predictor of students' English achievement. It furthermore showed significant relationships between visual and individual styles of learning and English performance. The findings of the study reflected students' English learning context in which English native-speaking teachers frequently used communicative pair and small group activities for speaking practices that were consonant with students' learning styles.

• International Journal of Contents
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• 제13권3호
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• pp.9-16
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• 2017

The music industry of the digital age has witnessed seemingly endless battles involving copyright. Though continuous efforts to strengthen copyright under romantic understating have benefited major actors in the industry, it has threatened creativity and net activism in the digital age. This study argues rhetoric used by the industry regarding how file sharing and digital environments hurt music sales is inadequate. It has enabled the industry and its major labels to embolden copyright and protective legislation with the government's support. This article will reveal that the issue surrounding copyright under the romantic notion is not an outdated one confined to the early era of digital music This article will argue that major players in the industry are repeating the old strategic approach of controlling the music market. This is achieved by limiting practices of music audiences and future creativity such as the creation of amateur content and emergence of new business models.