• 대한간호학회지
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• 제48권1호
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• pp.50-58
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• 2018

Purpose: The purpose of this study was to examine the mediating effect of marital intimacy on the impact of uncertainty on the quality of life (QoL) of young breast cancer patients. Methods: This study used a pathway analysis with 154 young breast cancer cases in their early diagnosis stage at a medical center in Korea. Data were collected from November 2016 to February 2017 and analyzed using correlation analysis and pathway analysis. Results: Uncertainty, marital intimacy, and 4 sub-scales of QoL showed a significant correlation. Marital intimacy was directly affected by uncertainty (${\beta}=-.39$, p=.013) and 4 sub-scales of QoL were also affected by uncertainty. Among the 4 sub-scales of QoL, physical well-being (PWB) (${\beta}=.17$, p=.026), social well-being (SWB) (${\beta}=.49$, p=.010), and functional well-being (FWB) (${\beta}=.38$, p=.009) were affected by marital intimacy but emotional well-being (EWB) was not affected by it. The mediating effect of marital intimacy on the impact of uncertainty on QoL was confirmed. Marital intimacy showed a significant indirect effect on PWB (${\beta}=-.07$, p=.024), SWB (${\beta}=-.19$, p=.008), and FWB (${\beta}=-.15$, p=.005), and it means that marital intimacy has a partial mediating effect on the impact of uncertainty on PWB, SWB, and FWB. Conclusion: Effects of uncertainty on QoL was mediated by marital intimacy of young breast cancer patients in their early diagnosis stage. It suggests that marital intimacy needs to be considered in providing nursing intervention for young breast cancer patients.

• 한국임상약학회지
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• 제26권1호
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• pp.70-76
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• 2016

Background: The use of the extracts from evening primrose seeds as a health functional food has been gradually increased. Therefore, the monitoring and screening process has been considerably required for its quality control. Objective: This study aimed to estimate the measurement uncertainty associated with determination of penta-o-galloyl ${\beta}$-D-glucose (PGG) in extracts from evening primrose seeds by high-performance liquid chromatography. Methods: The sources of measurement uncertainty was expressed in accordance with mathematical/statistical theories of GUM & EURACHEM Guide. The expanded uncertainty was calculated by using the relative standard uncertainty between analytical result and sources of uncertainty in measurement (sample weight, final volume, extraction volume, standard solution, matrix and instrument etc). Results: In the results of 95% confidence interval, the uncertainty in measurement was $10,253.34{\pm}1,844.50{\mu}g/kg$ (k = 2.0). Conclusion: In this study, it showed that the value of uncertainty in measurement for determination of PGG in extracts from evening primrose seeds by HPLC has about 18.0% influence on PGG contents of the analytical results. The results would be very useful for the monitoring and screening of evening primrose seeds marketed in Korea for its quality control as dietary supplement.

• 대한간호학회지
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• 제39권5호
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• pp.751-758
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• 2009

Purpose: The purpose of this study was to investigate the Quality of Life (QOL) and related factors in the patients with dizziness. Methods: The data were collected between March and June 2008 for 200 individuals who agreed to participate in the study. Uncertainty (Uncertainty in illness scale), anxiety, depression (Hospital anxiety & depression scale) and Vestibular disability activities of daily living (Vestibular disability-activities of daily living [ADL] scale) as well as QOL (Dizziness Handicap Inventory) were measured. Results: The mean QOL score was 37.5 (${\pm}23.0$). Monthly income, etiology of, frequency of, and total duration of dizziness were the significant factors related to QOL in these patients. Having had a fall, anxiety, depression, uncertainty and vestibular disability in daily living were also significant factors influencing QOL. In multiple regression analysis, anxiety, vestibular disability-ADL, falls, total duration of symptoms, uncertainty, and etiology of dizziness explained 41% of variance of QOL. Conclusion: The level of QOL in our patients was moderate as compared to those in previous studies. Anxiety and vestibular disability were the most important factors predicting low QOL. Use of nursing intervention programs designed to relieve these factors should also result in improving the QOL in the patients with dizziness.

• 여성건강간호학회지
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• 제26권1호
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• pp.72-83
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• 2020

Purpose: The purpose of this study was to investigate the effects of uncertainty and spousal support on infertility-related quality of life (QoL) in women undergoing assisted reproductive technologies. Methods: In this correlational survey study, 172 infertile women undergoing assisted reproductive technologies for infertility treatment at M hospital in Seoul participated. Data collection took place at the outpatient department of M hospital using a self-report questionnaire from July to August 2019. Data were analyzed using SPSS for Windows version 28.0. Results: The mean scores for uncertainty, spousal support, and infertility-related QoL were 28.35 (out of 50), 86.67 (out of 115), and 57.98 (out of 100), respectively. Infertility-related QoL was positively correlated with spousal support and negatively correlated with uncertainty. According to the regression analysis, infertility-related QoL was significantly affected by uncertainty, total number of assisted reproductive technology treatments, marriage duration, subjective health status, the financial burden of infertility testing, and the presence of a burdensome person. These variables had an explanatory power of 35.0% for infertility-related QoL. Conclusion: Uncertainty was an important factor influencing infertility-related QoL among women undergoing assisted reproductive technologies. It is necessary to develop and implement a nursing intervention program focused on reducing various forms of uncertainty during assisted reproductive procedures and to consider other factors affecting infertility-related QoL in the clinical setting.

• 아태비즈니스연구
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• 제1권2호
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• pp.83-106
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• 2010

경제가 급속히 성장하고 있는 중국은 미국의 금융위기로 인한 수출 감소로 중국 국내 경제가 불확실한 상태에 빠진 가운데, 2009년 초 국유독자상업은행의 주식제 개혁완료에 따라 은행계에서 큰 변화가 일어나고 있다. 본 연구는 중국 상업은행의 지각된 서비스품질이 지각된 불확실성과 고객만족, 관계품질 및 애호도 간의 관계를 확인하여, 외국계 시중은행들의 중국시장진출을 위한 전략수립에 필요한 기초자료를 제공하고자 한다. 이러한 연구목적을 달성하기 위해 문헌연구 및 실증분석을 통해 각 요인들 간의 관계를 규명하여 얻은 연구결과는 다음과 같다. 첫째, 지각된 불확실성은 지각된 서비스품질과 고객만족 및 관계품질 간의 관계에서 중요한 매개역할을 하고 있는 것으로 나타났다. 둘째, 지각된 서비스품질은 고객만족에 직접적이고 유의한 긍정적인 영향을 미치는 것으로 나타났고, 고객만족은 지각된 서비스품질과 관계품질 간의 관계에서 중요한 매개역할을 하고 있는 것으로 나타났다. 셋째, 지각된 불확실성은 고객만족 및 관계품질에 직접적이고 유의한 부정적인 영향을 미치는 것으로 나타났고, 고객만족은 지각된 불확실성과 관계품질 간의 관계에서 중요한 매개역할을 하고 있는 것으로 나타났다. 넷째, 애호도는 태도적 애호도와 행동적 애호도 두 차원으로 나눠서 측정하고 관계품질은 태도적 애호도와 행동적 애호도에 직접적이고 긍정적인 영향을 미치는 것으로 나타났다.

• 한국의학물리학회지:의학물리
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• 제28권3호
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• pp.111-121
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• 2017

Verification of dose distribution is an essential part of ensuring the treatment planning system's (TPS) calculated dose will achieve the desired outcome in radiation therapy. Each measurement have uncertainty associated with it. It is desirable to reduce the measurement uncertainty. A best approach is to reduce the uncertainty associated with each step of the process to keep the total uncertainty under acceptable limits. Point dose patient specific quality assurance (QA) is recommended by American Association of Medical Physicists (AAPM) and European Society for Radiotherapy and Oncology (ESTRO) for all the complex radiation therapy treatment techniques. Relative and absolute point dose measurement methods are used to verify the TPS computed dose. Relative and absolute point dose measurement techniques have a number of steps to measure the point dose which includes chamber cross calibration, electrometer reading, chamber calibration coefficient, beam quality correction factor, reference conditions, influences quantities, machine stability, nominal calibration factor (for relative method) and absolute dose calibration of machine. Keeping these parameters in mind, the estimated relative percentage uncertainty associated with the absolute point dose measurement is 2.1% (k=1). On the other hand, the relative percentage uncertainty associated with the relative point dose verification method is estimated to 1.0% (k=1). To compare both point dose measurement methods, 13 head and neck (H&N) IMRT patients were selected. A point dose for each patient was measured with both methods. The average percentage difference between TPS computed dose and measured absolute relative point dose was 1.4% and 1% respectively. The results of this comparative study show that while choosing the relative or absolute point dose measurement technique, both techniques can produce similar results for H&N IMRT treatment plans. There is no statistically significant difference between both point dose verification methods based upon the t-test for comparing two means.

• 대한안전경영과학회지
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• 제9권6호
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• pp.193-196
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• 2007

This paper presents real examples of quality statistics for users to easily understand the concept and purpose for obtaining the degree of freedom. Moreover degree of freedom by Satterwaite can be used for linear combinations of unbiased variance. Finally effective degree of freedom by Welch-Satterthwaite is applicable to obtain expanded uncertainty considering type A and type B uncertainty.

• 한국융합학회논문지
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• 제10권3호
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• pp.347-354
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• 2019

본 연구의 목적은 성인 선천성 심장 질환자의 불확실성과 삶의 질 간의 관계를 파악하기 위한 서술적 상관 관계연구이다. S시에 있는 종합 병원의 성인 선천성 심장 질환자 136명을 대상으로 하였다. 삶의 질은 불확실성과 대근육 운동기능 영역(r=-.15, p=.041), 인지(r=-18, p=.014), 통증(r=-.14, p=.045), 일상 생활(r=-.15, p=.039), 활력(r=-.16, p=.029)에서 모두 음의 상관관계가 있었다. 성인 선천성 심장 질환자의 대근육 운동 기능 영역, 일상 생활을 투입한 회귀모형은 유의한 것으로 나타났으며(F=6.15, p=.018), 모형의 설명력은 22.0%였다. 이를 통해 성인 선천성 심장 질환자의 불확실성을 개선시키기 위해서는 대근육 운동 기능 영역 및 일상 생활 기능을 증진시킬 수 있는 중재 프로그램이 제공되어야 할 필요가 있음을 알 수 있었다.

• 국제지역연구
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• 제14권2호
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• pp.159-180
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• 2010

본 연구는 중국 상업은행의 지각된 서비스품질, 가치일치성이 불확실성회피와 고객만족 및 고객충성도 간의 관계를 확인하여, 외국계 시중은행들의 중국시장진출을 위한 전략수립에 필요한 기초자료를 제공하고자 한다. 이러한 연구목적을 달성하기 위해 본 연구는 문헌연구와 실증연구를 병행 실시하였다. 실증연구에서는 길림성의 대표적인 도시인 장춘(長春), 산동성의 대표적인 도시인 제남(濟南), 광동성의 대표적인 대도시 광저우(廣州)를 중심으로 상업은행서비스를 이용하고 있는 중국고객을 대상으로 설문조사를 실시하였다. 연구결과는 다음과 같다. 본 연구의 결과는 지각된 서비스품질과 고객만족 간의 관계에서, 가치일치성과 고객만족 간의 관계에서 불확실성회피는 중요한 매개역할을 하고 있는 것으로 나타났고, 불확실성회피는 고객만족에 직접적이고 유의한 부정적인 영향을 미치는 것으로 나타났다. 또한 가치일치성은 불확실성회피에 직접적이고 유의한 부정적인 영향을 미치고, 고객충성도는 태도적 충성도와 행동적 충성도 두 차원으로 나눠서 측정하고 고객만족은 태도적 충성도와 행동적 충성도에 직접적이고 유의적인 긍정적인 영향을 미친다고 실증적으로 보여주고 있다.

• 대기
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• 제25권3호
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• pp.511-520
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• 2015

Existing studies on radar rainfall uncertainties were performed to reduce the uncertainty for each stage by using bias correction during the quantitative radar rainfall estimation process. However, the studies do not provide quantitative comparison with the uncertainties for all stages. Consequently, this study proposes a suitable approach that can quantify the uncertainties at each stage of the quantitative radar rainfall estimation process. First, the new approach can present initial and final uncertainties, increasing or decreasing the uncertainty, and the uncertainty percentage at each stage. Furthermore, Maximum Entropy (ME) was applied to quantify the uncertainty in the entire process. Second, for the uncertainty quantification of radar rainfall estimation at each stage, this study used two quality control algorithms, two rainfall estimation relations, and two bias correction techniques as post-processing and progressed through all stages of the radar rainfall estimation. For the proposed approach, the final uncertainty (ME = 3.81) from the ME of the bias correction stage was the smallest while the uncertainty of the rainfall estimation stage was higher because of the use of an unsuitable relation. Additionally, the ME of the quality control was at 4.28 (112.34%), while that of the rainfall estimation was at 4.53 (118.90%), and that of the bias correction at 3.81 (100%). However, this study also determined that selecting the appropriate method for each stage would gradually reduce the uncertainty at each stage. Finally, the uncertainty due to natural variability was 93.70% of the final uncertainty. Thus, the results indicate that this new approach can contribute significantly to the field of uncertainty estimation and help with estimating more accurate radar rainfall.