• Asian Pacific Journal of Cancer Prevention
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• 제15권15호
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• pp.6205-6210
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• 2014

Background: The aim of this study was to investigate Iranian cancer patient perceptions of their prognosis, factors that influence perceptions of prognosis and the effect this has on patient level of hope. Materials and Methods: Iranian cancer patients (n=200) completed self-report measures of their perceptions of their prognosis and level of hope, in order to assess the relationship between the two and identify factors predictive of perceptions by multiple linear regression analysis. Results: Cancer patients perceived of their prognosis positively (mean 11.4 out of 15), believed their disease to be curable, and reported high levels of hope (mean 40.4 out of 48.0). Multiple linear regression analyses demonstrated that participants who were younger, perceived they had greater family support, and had higher levels of hope reported more positive perceptions of their cancer prognosis. Conclusions: Positive perceptions of prognosis and its positive correlation with hope in Iranian cancer patients highlights the importance of cultural issues in the disclosure of cancer related information.

• 디지털융복합연구
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• 제15권1호
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• pp.311-320
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• 2017

본 연구는 간호 대학생을 대상으로 간호사 이미지, 전문직 자아개념 및 간호전문직관의 관계를 확인하고, 간호전문직관 정립을 위한 효율적인 간호교육의 방안을 모색하는데 필요한 기초자료를 제공하고자 실시하였다. 연구대상자는 G광역시 일개 대학에 재학중인 292명의 간호 대학생이었으며, 2015년 11월 11일부터 11월 15일까지 자료를 수집하였다. 자료는 SPSS 21.0을 이용하여 t-test, ANOVA, Pearson's Correlation, Stepwise Multiple linear regression으로 분석하였다. 연구결과 간호전문직관과 간호사 이미지(r=.821, p<.001), 전문직 자아개념(r=.701, p<.001)과는 양의 상관관계가 있었으며, 간호사 이미지, 전문직 자아개념 및 학년을 포함한 변수가 간호전문직관을 총 57.2% 설명하였다. 따라서, 긍정적인 전문직관을 형성시키기 위해서는 간호교육 프로그램을 개발할 시, 본 연구결과에서 나타난 요인들을 고려해야 할 필요가 있겠다.

• 한국환경생태학회지
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• 제34권1호
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• pp.55-62
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• 2020

이 연구는 강원대학교 학술림 내의 산지계류를 대상으로 2년간(2017~2018)의 현지 모니터링에 기초하여 수온과 강우, 유량 및 기온 등 환경인자간의 관계를 분석하고, 계절별 산지계류의 수온변화 예측기법에 대하여 검토하였다. 동절기를 제외한 봄, 여름 및 가을철로 구분하여 단계적 다중선형회귀분석을 실시하였으며, 계절별 산지계류의 수온변화에 미치는 환경인자의 영향을 분석하였다. 그 결과, 산지계류의 일평균 수온은 봄철 6.9~17.7℃로 기온과 유의적 관계를 나타내었고, 여름철 12.2~26.3℃로 기온, 유량과 유의적 관계를 나타냈으며, 가을철 3.6~19.3℃로 기온 및 유량과 유의적 관계를 나타내는 등 계절별로 산지계류의 수온에 미치는 영향인자는 다르게 나타났다. 다중선형회귀식은 봄철 (0.553×기온)+(0.086×유량)+4.145(R²=0.505; p<0.01), 여름철 (0.756×기온)+(-0.072×유량)+2.670(R²=0.510; p<0.01), 가을철 (0.738×기온)+(0.028×강우)+2.660(R²=0.844; p<0.01)이었다. 도출된 모든 회귀식의 결정계수(R²)는 기온만으로 예측한 경우보다 높게 나타났고, 봄철에서 가을철로 갈수록 증가하였다. 향후 정밀도 높은 산지계류의 수온변화 예측을 위해서는 지속적인 현지 모니터링과 함께 시·공간적 데이터의 확보가 중요하다고 판단된다.

• 한국전산구조공학회논문집
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• 제32권2호
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• pp.93-101
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• 2019

이 연구의 목적은 인공신경망 기법을 이용하여 사면의 내진 성능을 비교적 정확하면서도 효율적으로 예측하는 모델을 도출하는데 있다. 사면의 내진 성능은 지진입력 및 사면모델의 무작위성 및 불확실성으로 인하여 정량화하기 쉽지 않다. 이러한 배경 아래 사면에 대한 확률론적 지진 취약도 분석이 몇몇 연구자에 의해 수행되었고, 이를 기반으로 다중 선형회귀분석을 통하여 사면 내진성능에 대한 닫힌식이 제안된 바 있다. 그러나 전통적인 통계학적 선형회귀분석은 다양한 조건의 사면과 이에 따른 내진 성능 사이의 비선형적 관계를 정확하게 표현하지 못하는 한계를 보였다. 이에 따라 본 연구에서는 이러한 문제점을 극복하고자 인공신경망 기법을 사면 내진성능 예측 모델을 생성하는데 적용하였다. 도출된 모델의 유효성은 기존의 다중 선형 및 다중 비선형 회귀분석을 통한 모델과 비교하여 검증하였다. 결과적으로 이전 연구의 전통적인 통계학적 회귀 분석을 통한 모델과 비교 결과, 기본적으로 인공신경망 기법을 통하여 도출된 모델이 사면의 내진성능을 예측하는데 있어 우수한 성능을 보여주었다. 이러한 정확도 높은 모델은 향후 확률에 기반한 사면의 지진취약도 지도를 개발하고, 주요 구조물의 인근 사면으로 인한 리스크를 효과적으로 평가하는데 활용될 수 있을 것이라 기대된다.

• Clinical and Experimental Pediatrics
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• 제54권2호
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• pp.64-68
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• 2011

Purpose: The normal values for lung resistance and lung capacity of children, as determined by impulse oscillometry (IOS), are different for children of different ethnicities. However, reference values there is no available reference value for Korean preschool children have yet to be determined. The aim of the present study was to determine the normal ranges of IOS parameters in Korean preschool children. Methods: A total of 133 healthy Korean preschool children were selected from 639 children (aged 3 to 6 years) who attended kindergarten in Seongnam, Gyeonggi province, Korea. Healthy children were defined according to the European Respiratory Society (ERS) criteria. All subjects underwent lung function tests using IOS. The relationships between IOS value (respiratory resistance (Rrs) and reactance (Xrs) at 5 and 10 Hz and resonance frequency (RF)) and age, height, and weight were analyzed by simple linear and multiple linear regression analyses. Results: The IOS success rate was 89.5%, yielding data on 119 children. Linear regression identified height as the best predictor of Rrs and Xrs. Using stepwise multiple linear regressions based on age, height, and weight, we determined regression equations and coefficients of determination ($R^2$) for boys ($Rrs_5=1.934-0.009{\times}Height$, $R^2$=12.1%; $Xrs_5=0.774+0.006{\times}Height-0.002{\times}Age$, $R^2$=20.2% and for girls $(Rrs_5=2.201-0.012{\times}Height$, $R^2$=18.2%; $Xrs_5=-0.674+0.004{\times}Height$, $R^2$=10.5%). Conclusion: This study provides reference values for IOS measurements of normal Korean preschool children. These provide a basis for the diagnosis and monitoring of preschool children with a variety of respiratory diseases.

• 터널과지하공간
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• 제22권5호
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• pp.354-364
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• 2012

본 연구에서는 석회암 지반에서 광산개발이나 토목공사를 수행할 때 데이터베이스로 활용될 수 있는 암석의 기초 물성들을 파악하기 위하여, 제천지역 석회암을 대상으로 수많은 실내 역학시험을 실시하여 암석의 단위중량, 흡수율, 간극률, 탄성파 속도, 쇼어경도, 일축압축강도, 인장강도, 영률, 포와송비, 점착력, 내부마찰각 등의 각종 물리적 성질을 조사하였다. 연구 지역에 분포하는 회색석회암과 이질석회암의 역학적 특성을 비교 검토하였으며, 이질석회암은 회색석회암에 비하여 단위중량은 작고 간극률과 흡수율은 크게 나타나 각종 역학적 특성은 상대적으로 작게 평가되었다. 또한 Mohr-Coulomb 파괴기준과 Hoek-Brown 파괴기준을 적용하여 제천 석회암의 파괴조건을 해석하였으며, 여러 가지 물성간의 단순회귀분석과 다중회귀분석을 통해 물성 상호간의 관련성을 알아보았다.

• Journal of Preventive Medicine and Public Health
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• 제43권2호
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• pp.125-130
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• 2010

Objectives: The current study was performed to assess the distribution of intraocular pressure (IOP) and its association with metabolic syndrome (MS) in a community. Methods: We measured IOP and MS components from 446 adults, age 20 or more years old, who reside in a community in Kyunggi Province, South Korea. We compared the level of IOP according to the number of metabolic abnormalities and between normal and abnormal metabolic components. Linear regression analyses were used to determine the relationship between IOP and metabolic components. Results: No significant difference in IOP (mean${\pm}$SE) was found between men ($12.24{\pm}2.42$) and women ($12.55{\pm}2.41$ mmHg, p > 0.1), while IOP of men tended to decrease as age increased (p for trend < 0.01). After adjusting for age, IOP of subjects with abdominal obesity in men and high blood pressure in women were significantly higher than those without abdominal obesity or high blood pressure (p < 0.05). Female subjects with MS showed significantly higher IOP than those without MS. Participants with more metabolic disturbances tended to have a greater IOP elevation with a linear trend after adjusting for age and sex. In the univariate regression analysis, age and waist circumference were significantly associated with IOP in men, but systolic and diastolic blood pressure were associated with IOP in women. In final multiple regression model, age, systolic blood pressure, and triglyceride were associated with IOP in women, and age in men. Conclusions: These findings suggest that MS and its components may be important determinants of elevated IOP.

• 한국지역사회생활과학회지
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• 제27권2호
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• pp.221-231
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• 2016

This study was conducted to investigate the effects of participation in adult education on cognitive function, and the mediating effects of relationships with children among older adults. This study employed data from the 2011 Elderly Survey, and a total of 8,668 older adults over 65-years old were used for analysis. Multiple linear regression analyses were used to examine the mediating effect of relationship with children based on the approach proposed by Baron & Kenny (1986). The results showed that participation in adult education increased cognitive function of older adults. Adult education participation also increased satisfaction with relationship with children, and relationship with children was found to have a mediating effect. These findings suggest that there is a need to recognize the importance of the relationship between older adults and children when developing education programs for older adults.

• 기본간호학회지
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• 제21권3호
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• pp.235-242
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• 2014

Purpose: This study was done to identify the degree of appearance stress, ego-resilience, interpersonal relations, depression, and eating attitude and to investigate the main factors influencing eating attitude in women undergraduates. Methods: The research design was a descriptive survey design using a convenience sampling. Data were collected by self-report questionnaires from 238 women undergraduates. Data analyses were done using SPSS/WIN 18.0 program for descriptive statistics, t-test and multiple linear regression. Results: The mean score for eating attitude was 0.36. There were statistically significant differences in appearance stress and interpersonal relations according to type of eating attitude. Also, appearance stress, interpersonal relations, and depression were significant predictors explaining 39% of the variance in eating attitude. Conclusion: The results indicate that the factors influencing eating attitude should be considered when developing nursing interventions to change poor eating attitude for women undergraduates.

• 보건의료산업학회지
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• 제13권3호
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• pp.67-80
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• 2019

Objectives: The purpose of this study was to identify the relationships among violent experiences, positive psychological capital, and burnout, as well as to clarify the factors that affect psychiatric ward nurses' burnout. Methods: A descriptive research design was used. Participants were 213 psychiatric ward nurses recruited from twelve psychiatric hospitals. A structured self-report questionnaire was used to measure the study variables, and data were analyzed with the SPSS 24.0 program using descriptive statistics, an independent t-test, a one-way ANOVA, Pearson's correlation coefficients, and multiple linear regression analyses. Results: Burnout positively correlated with violent experiences (r=.14, p=.041), but negatively correlated with positive psychological capital (r=-.73, p<.001). Positive psychological capital was a significant variable for the burnout of psychiatric ward nurses (${\beta}=-.71$, p<.001). Conclusions: The study findings indicate a need to reinforce positive psychological capital for preventing and alleviating burnout of psychiatric ward nurses.