• 문화기술의 융합
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• 제7권4호
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• pp.565-575
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• 2021

본 연구는 대학생의 진로결정 자기효능감, 학과만족도와 취업스트레스와의 관계를 규명하기 위하여 모형을 구축하고 이들 요인간의 관계를 규명하고자 시도되었다. 본 연구의 대상자는 G도 소재의 만 18세 이상의 대학생 355명을 대상으로 하였으며, 수집된 자료는 SPSS/WIN 24.0/AMOS 24.0 프로그램으로 분석하였다. 구조회귀모델의 적합도 지수는 수용기준을 충족하였다(χ²/df=2.89, SRMR=.04, RMSEA=.07, CFI=.96, TLI=.95). 연구결과, 첫째, 진로결정 자기효능감, 학과만족도는 취업스트레스에 직접 영향을 미치는 것으로 나타났다. 둘째, 진로결정 자기효능감은 학과만족도에 직접 영향을 미치는 것으로 나타났다. 셋째, 진로결정 자기효능감은 학과만족도를 통해 취업스트레스에 간접 영향을 미치는 것으로 나타났다. 취업스트레스에 영향을 미치는 두 변인 중 학과만족도가 취업스트레스에 상대적인 영향력이 큰 것으로 나타났다. 이러한 연구결과를 바탕으로 대학생의 취업스트레스를 감소시키기 위하여 취업스트레스에 영향을 주는 것으로 밝혀진 진로결정 자기효능감과 학과만족도를 높이기 위한 전략을 개발하는 것이 필요하다.

• 대한소아치과학회지
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• 제35권3호
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• pp.418-426
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• 2008

본 연구에서는 구강 환경과 유사한 조건에서 불소방출성을 보이는 콤포짓트 레진계 수복재의 내구성과 불소방출성을 조사하기 위해 4 종의 콤포머와 1 종의 불소방출성 콤포짓트 레진을 실험재료로 선택하고 $5^{\circ}C$와 $55^{\circ}C$ 수중에서의 열순환 처리 후의 인장강도, 열순환 처리 후 칫솔에 대한 작용력 1.5N으로 100,000회 칫솔질을 시행하였을 때의 표면조도 및 불소치약 칫솔질 후 $37^{\circ}C$ 수중에서의 불소이온 용출 양상을 조사한 결과 다음과 같은 결론을 얻었다. 1. 인장강도는 TC($Tetric^{(R)}$ Ceram)군에서 32.3 MPa, CF(Compoglass F)군에서 16.8 MPa이고, TC군과 DF($Dyract^{(R)}$ flow)군 및 CF군에서 유의한 차이를 보였다(P<0.05). 2. 칫솔질 마모시험 후의 표면조도 Ra는 TC군에서 0.287, FT(F2000)군에서 1.516이고, FT군과 나머지 시험군 사이에 유의한 차이를 보였다(P<0.05). 3. 칫솔질 마모시험 후의 표면에서는 필러의 돌출과 탈락 양상이 관찰되었다. 4. 불소치약 Perio Alpine Herb로 칫솔질 한 후 콤포머는 초기에 높은 용출을 보인 후 시간이 경과하면서 용출량이 감소하는 양상을 보였지만, 불소방출성 콤포짓트 레진의 TC군에서는 초기단계부터 낮으면서도 지속적인 용출을 보였다. 5. 불소치약 Perio Alpine Herb로 칫솔질 한 후 1시간이 경과하였을 때의 불소이온 용출량은 CF군에서 $2.064{\mu}g/cm^2$, TC 군에서 $0.1119{\mu}g/cm^2$이고, CF군의 용출량이 나머지 시험군에 비해 유의하게 높은 값을 보였다(P<0.05).

• 생명과학회지
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• 제21권9호
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• pp.1214-1218
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• 2011

식물자원으로부터 항산화 물질을 확보 하기위해 한국 등에서 전통적으로 phytotherapy로 이용되어 온 Rubus crataegifolius Bge. 열매를 조사하였다. R. crataegifolius의 열매를 메탄올로 추출하였고 순차적으로 n-hexane, diethyl ether, and ethyl acetate로 분획화하였다. 각 분획물의 항산화 활성은 DPPH와 $H_2O_2$에 대항 인간 primary 세포인 keratinocyte (HK)를 이용하여 세포 독성 및 효능을 검증하였다. R. crataegifolius 열매 추출물은 비타민 C와 비슷한 강력한 DPPH (75.04%, 50%)와 $H_2O_2$ (79.9%, 54.1%) 소거능을 보였다. 분획물의 DPPP에 대한 소거능을 측정하였는데 n-hexane fraction (HF)은 20.3%, diethyl ether fraction (DF)은 68.8%, ethyl acetate fraction (EF)는 67.1% 그리고 residue fraction (RE)은 67.1%의 소거능을 보였으며 $H_2O_2$에 대해서는 2.2%, 1.6%, 10%, 그리고 50%로 각각 나타내었다. H2O2에 대한 HK의 세포 보호능을 확인하기 위해 산화적 스트레스 모델을 확립하였고(1 mM) 0.005-0.02%의 RE 분획물에서 $H_2O_2$에 대한 보호능을 발휘하였다. 따라서, R. crataegifolius의 열매 추출물은 $H_2O_2$유발 상처에 대하여 HK세포의 보호능을 가지며 강력한 항산화 활성을 가지고 있다.

• 한국보건간호학회지
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• 제26권2호
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• pp.303-313
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• 2012

Purpose: This study was conducted to examine the correlation between social support, loneliness, sleep quality, and perceived health status among community-dwelling older adults. Methods: Older adults who lived in urban and rural local communities were taken into account. Among them, 396 people participated in this study. Path analysis was conducted in order to verify the study model and its verification. SPSS WIN 18.0 and AMOS17.0 were used for analysis of collected data. Results: The results showed that social support had a significant effect on perceived health status (${\beta}$=.17, p= .003) and loneliness (${\beta}$=-.56, p<.001), while loneliness had a significant effect on perceived health status (${\beta}$=-.12, p=.045) and sleep quality (${\beta}$=.20, p<.001). In addition, the results also indicated that sleep quality had a significant influence on perceived health status (${\beta}$=-.16, p <.001). According to results derived from the model, Chi-square=.359, df=1 NC=.359, CFI=1.0, NFI=0.98, RMSEA=.000; thus, the model was shown to be significant. Conclusion: For maintenance of the health of the aged, social support, loneliness, and sleep quality should be secured; in order to realize this, an effort should be made toward health promotion while providing the aged with more social attention.

• 간호행정학회지
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• 제15권4호
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• pp.550-562
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• 2009

Purpose: The purpose of this study was to construct and test a structural equation model of nurses' turnover intention. Method: The participants were 716 nurses at 4 university hospitals. Data were collected by a self-report questionnaire in 2008 and analyzed using SPSS 12.0 and AMOS 4.0 Win program. Results: The fit indices of modified model were $x^2=285.928$(p<.001), $x^2/df=1.958$, GFI=0.964, RMSEA=0.037, AGFI=0.944, NFI=0.947, NNFI=0.961, CFI=0.973, PNFI=0.658 and showed high compatibility with the empirical data. In the final model, job stress and satisfaction were found to have significant direct effects on nurses' turnover intention, while organizational culture and emotional labor were very important factors to have indirect effects on turnover intention via job stress and satisfaction. Nurses' turnover intention was accounted for 41.2% of covariance by these factors. Conclusions: Comprehensive nursing interventions for decreasing nurses' turnover intention should be focused on reducing job stress and increasing job satisfaction. Also, Nursing strategy for enhancing positive organizational culture and decreasing emotional labor would be helpful for decreasing nurses' turnover intention, too. Further studies are needed to prospectively conduct to verify these causal relationships with larger sample.

• 성인간호학회지
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• 제16권2호
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• pp.245-255
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• 2004

Purpose: this study was to evaluate Cognitive Function Test for the Korean population. Digit Forward (DF), Digit Backward (DB) and Trail Making Test-A(TMT-A) and the translated version of the Trail Making Test-B (TMT-B) were used. The study examined the performance of Korean normal adult population whose age ranged from 20 to over 80. It was predicted that performances of the Korean population would be different from that of the United States population due primarily to their differences in language, and education. Method: Normal Korean adults at the Daejeon Metropolitan City and Chungchung Province (N=298) participated in this study. Seven age scores were evaluated; 20~29, 30~39, 40~49, 50~59, 60~69, 70~79, & >80s. The effects of age, gender, and years of education was examined, which yielded significant age and education effects. The scores were further specified accordingly in terms of years of education (0, 1~6, 7~12, 13~16, & >17), and gender. Result: As the age increased cognitive function score decreased. As the years of education increased, cognitive function scores increased. There was no difference in cognitive function scores according to gender. Age and year of education had significant effects on cognitive function and explained 52-58% of variants of each test. Conclusion: The data of the cognitive function tests are expected to be utilized for research purposes such as basic and clinical studies, as well as practical purpose such as cognitive assessment for traumatic brain injury, stroke, and elderly and nursing education for assessment tools.

• 한국인터넷방송통신학회논문지
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• 제20권2호
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• pp.289-297
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• 2020

본 연구의 목적은 대학생의 혁신성향이 융합학문에 수용의도에 영향을 미치는 효과를 검증하는 데 있다. 이를 위해 기술수용모형에 기초하여 대학생의 개인적 혁신성, 사회적 기대, 지각된 유용성, 융합학문 수용의도를 변인으로 한 구조방정식모델을 설계하고 LISREL을 사용하여 이를 분석하였다. 연구 결과는 다음과 같다. 첫째, 개인적 혁신성은 융합학문 수용의도에 직접적인 양(+)의 예측요인이며, 지각된 유용성을 매개로 한 간접적인 요인임을 확인하였다. 둘째, 사회적 기대 요인은 지각된 유용성을 매개로 융합학문 수용의도에 간접적인 영향을 미치는 것으로 나타났다. 제안된 연구모형은 적합도에서 χ²의 값이 22.638(d.f=29, p=.793)로 나타나 통계적으로 수용할 만한 결과를 보였다. 연구 결과를 토대로 대학생의 혁신성과 융합학문의 유용성을 경험할 수 있도록 다양한 교과 및 비교과 프로그램 개발의 필요성을 제안하였다. 특히 교양 교과의 역할과 위상의 변화가 요구됨을 제안하였다.

• 대한간호학회지
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• 제49권6호
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• pp.655-676
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• 2019

Purpose: The purpose of this study was to investigate the effects of aromatherapy on sleep quality. Methods: This is a systematic review of randomized controlled trial studies (PROSPERO registration number CRD42017064519). In this study, the PICO were adults and the elderly, aromatherapy intervention, a comparative intervention with the control and placebo oil groups, and sleep. The selected articles were in English, Korean, and Chinese. Results: The results of the meta-analysis showed that the effect sizes of the experimental group were 1.03 (n=763, SMD=1.03, 95% CI 0.66 to 1.39) (Z=5.47, p<.001). In the aromatherapy intervention group, the effect size of sleep was statistically significant (Q_B=9.39, df=2, p=.009), with a difference of 0.77 for inhalation, 1.12 for oral intake and 2.05 for massage. A post-analysis showed that the effect of massage on sleep was significantly greater than the inhalation method. The regression coefficient of the intervention period, B=0.01 (Z=1.43, p=.154), also showed that the longer the intervention period, the larger the effect size; however, it was not statistically significant. Conclusion: A total of 23 literature analyses showed that aromatherapy is effective in improving quality of sleep, and the massage method is more effective in improving quality of sleep than the inhalation method. A meta-ANOVA showed that the aromatherapy intervention affected the high heterogeneity of the effect size. Thus, future research with stricter control in methods and experimental procedures is necessary.

• 대한간호학회지
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• 제48권5호
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• pp.534-544
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• 2018

Purpose: This study was conducted to construct and test a structural model on family life satisfaction of aged individuals living at home. The conceptual model was based on Bandura's self-efficacy and social cognitive theories (1977; 1986) and Bowen's (1976) family systems theory. Methods: From January 25 to March 5, 2016, 227 older adults living at home completed a structured questionnaire. Data were analyzed to calculate the direct and indirect effects of factors affecting family life satisfaction. SPSS WIN 20.0 and AMOS 20.0 were used. Results: The hypothetical model was a good fit for the data. The model fit indices were ${\chi}^2=78.05$, ${\chi}^2/df=1.35$, RMSR=.02, GFI=.98, AGFI=.96, NFI=.94, CFI=.98, and RMSEA=.05. Family life satisfaction was positively affected by perceived collective family efficacy, status of physical health, family communication, and family support. Depression resulted in a significant negative effect. Family differentiation had a significant indirect effect on family life satisfaction. The model explained 76% of variance in family life satisfaction. Conclusion: Perceived collective family efficacy, status of physical health, depression, family differentiation, family communication, and family support were significant factors explaining family life satisfaction among older adults staying at home. Further research should be conducted to seek intervention strategies to improve family life satisfaction among older adults living at home by focusing on the respective contributing factors.

• 지역사회간호학회지
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• 제11권2호
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• pp.321-332
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• 2000

The purpose of this study was to test the hypothetical model designed to explain nursing students' perceived stress, coping levels, and stress outcomes. This hypothetical model was based on the Kim. Jung Hee(l987)' s stress model and stress-related literature. Exogenous variables were self-efficacy. hardiness. social support. and exercise. Endogenous variables were stress perception. coping levels. and stress outcomes. Empirical data for testing the hypothetical model consisted of 205 nursing students. SAS PC Program and LISREL 8.12a program were used for descriptive statistics and linear structural relationship(LISREL) modeling. The results were as follows. 1) The overall fit of the hypothetical model to the data was good( $x^2$=78.41(p=0.010), $x^2$/ df=1.50. RMSEA=0.05, standardized RMR= 0.05, GFI=0.95, AGFI=0.91, NNFI=0.90, NFI=0.94). 2) The results of statistical testing of the hypotheses were as follows. (1) As expected. self-efficacy had a significant effect on stress perception. But. hardiness. social support, and exercise did not have a significant effect on stress perception. Self-efficacy, hardiness. social support, and exercise explained 12% of the total variance of stress perception. (2) As expected, self-efficacy, hardiness, social support, exercise, and stress perception had a significant effect on coping behavior, Self-efficacy, hardiness, social support, exercise, and stress perception explained 53% of the total variance of coping behavior. (3) As expected, stress perception and coping behavior had a significant effect on stress outcomes. Stress perception and coping behavior explained 84% of the total variance of stress outcomes. In conclusion, the hypothetical model of this study was confirmed in explaining and predicting stress perception, coping levels, and stress outcomes in nursing students. And these findings suggest the need to develop nursing intervention to enhance self-efficacy, hardiness, social support, and exercise to decrease the harmful outcomes of stress.