• 한국산학기술학회논문지
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• 제21권8호
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• pp.205-214
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• 2020

본 연구의 목적은 고객불량 행동, 직무소진, 긍정심리자본이 간호사의 직무착근도에 미치는 영향을 파악하기 위함이다. 자료수집은 2개 광역시에 소재한 종합병원 3곳에 근무하는 간호사 198명을 대상으로 구조화된 설문지를 이용하여 2019년 7월 1일부터 7월 31일까지 실시하였다. 자료분석 방법은 SPSS 21.0 통계프로그램을 이용하여 t-test, ANOVA, Scheffe' test, Pearson's correlation coefficients 및 Multiple regression으로 분석하였다. 분석 결과, 고객불량 행동은 직무소진과 유의한 정적 상관관계(r=.24, p=<.001), 긍정심리자본(r=-.37, p=<.001), 직무착근도(r=-.48, p=<.001)와는 유의한 부적 상관관계가 있었고, 직무소진은 긍정심리자본(r=-.44, p=<.001), 직무착근도(r=-.31, p=<.001)와 유의한 부적 상관간계, 긍정심리자본은 직무착근도(r=.49, p=<.001)와 유의한 정적 상관관계가 있었다. 회귀분석 결과, 직무착근도에 유의한 영향을 미치는 요인은 개인적 특성 중 직위(β=-.19, p=.001)와 독립변인 중고객불량 행동(β=-.34, p<.001), 긍정심리자본(β=.32, p=.004)이었고, 이들 변인은 직무착근도를 38% 설명하는 것으로 확인되었다. 본 연구결과를 기반으로 간호사의 직무착근도를 높이기 위해서는 고객불량 행동을 근절하고 관리하기 위한 전략을 개발하고, 긍정심리자본을 강화하고 발전시킬 수 있는 다양한 프로그램 개발이 필요하다.

• Restorative Dentistry and Endodontics
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• 제28권1호
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• pp.11-22
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• 2003

This study compared the dentin adhesion to composite resin according to air-dry, blot dry, application of rewetting agent on air-dry or blot dry dentin surface by microleakag test and SEM observation. For microleakage test, class V cavity preparations with dentinal margins were prepared on both buccal and lingual surfaces of 40 extracted human molars. For SEM observation, occlusal dentin of 20 extracted human molars were exposed. After etched the dentin, prepared teeth were randomly divided into four groups; D group: air dry for 10-15 sec., B group: blot dry with moist cotton pellet, D-R group: air dry and rewet with Aqua-Prep F for 20 sec., B-R group: blot dry and rewet with Aqua-Prep F for 20 sec. Treated cavities and surfaces were filled or constructed using One-Step adhesives and Aelitefil composite resins. Specimens were stored in distilled water for 24 hours. For microleakage test, the specimens were thermocycled and soaked into 2% methylene blue. The specimens were sectioned longitudinally and evaluated for microleakage under steromicroscope. The data were statistically analysed by Kuskal-Wallis Test, Mann-Whitney and Wilcoxon signed ranked tests. For SEM observation, the specimens were bisectioned mesiodiatally. After decalcified and deproteinized, specimens were observed under SEM. The results of this study were as follows; 1. The microleakges on dentinal margin were the highest in D group compared with B group, D-R group, and B-R group(p<0.05). But there was no significant difference between B group, D-R group and B-R group. 2. D group showed gap and a few resin tags between dentin and composite resin. 3 B group, D-R group, and B-R groups showed close adaptation between dentin and composite resin. It showed that resin rags in B group were numerous and long, in D-R group were few and short, in B-R group were numerous and short or long. 4. Adhesive layer showed in D-R group ($10{\;}\mu\textrm{m}$) and B-R group ($3{\;}\mu\textrm{m}$) In conclusion, use of rewetting agent to dry dentin was efficient to dentin adhesion, also it did not provide reverse effect on blot dry dentin.

• 한국자동차공학회논문집
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• 제24권1호
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• pp.90-98
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• 2016

Currently government certified test method for an automobile remanufactured products is insufficient. Thus many automotive parts in the remanufacturing market are lacking proper evaluation criteria and production of defective products are causing customer dissatisfaction. In this paper a power steering oil pump, which requires stringent manufacturing standards, is studied by the failure mode and effect analysis approach. The research suggested that the test criteria such as discharge flow characteristic test, tightness test, pulley run-out test, pressure switch operation test, low temperature test and rotation pressure durability test should be performed to evaluate the reliability of remanufactured power steering oil pumps. As a result of tests, the performance of remanufactured power steering oil pump satisfied the evaluation criteria of pressure switch operation test and low temperature test. However, the remanufactured power steering oil pump failed to satisfy the evaluation criteria on discharge performance test, tightness test and pulley run-out test. These performance evaluation tests proved the necessity of standard process for the remanufactured power steering oil pump.

• 한국콘텐츠학회논문지
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• 제13권6호
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• pp.339-349
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• 2013

뇌손상 환자들을 대상으로 한국판 간이정신상태검사(MMSE-K)와 한국형 컴퓨터 신경행동검사(KCNT)를 실시하여 관련성을 평가하고, 확정적 정상군과 치매 의심군을 구분하는데 있어서 KCNT의 유용성을 평가하기 위하여 수행되었다. 뇌손상 환자 50명 중 확정적 정상군과 치매 의심군의 KCNT 결과는 정규성 검정을 만족하여 두 군간 비교는 t 검정을, MMSE-K와 KCNT 결과간에는 이변량 상관분석을 실시하였다. 두 군의 특성은 유의한 차이가 없었으며, KCNT 결과는 두 군간 모든 항목에서 유의한 차이가 있었다(p<.05). 두 검사간 Pearson 상관계수는 단순반응시간(r=-.580), 선택반응시간(r=-.341), 글자색 맞추기(r=-.661), 숫자구분(r=-.703), 두 자리 숫자더하기(r=-.582), 세 자리 숫자더하기(r=-.610), 부호숫자 짝짓기(r=-.642), 숫자외우기(r=.807)로 유의한 상관관계가 있었다(p<.05). 이 중 단순반응시간, 두 자리 숫자더하기는 확정적 정상군과 치매 의심군에서 서로 다른 부호의 상관계수를 나타내 두 군을 구분하는 검사로 사용할 수 있을 것으로 생각되며, 제안된 KCNT 항목들을 검사 목적에 따라 선택하여 사용하면 두 군의 인지기능을 관찰하기 위한 검사로 유용하게 사용할 수 있을 것으로 생각된다.

• 대한임상검사과학회지
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• 제41권1호
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• pp.1-5
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• 2009

The Platelet Function Analyzer (PFA)$^{(R)}$-100 measures the ability of platelets activated in a high-shear environment to occlude an aperture in a membrane treated with collagen and epinephrine (CEPI) or collagen and ADP (CADP). The time taken for the flow across the membrane to stop (closure time, CT) is recorded. The aim of this study was to assess the potential of the PFA$^{(R)}$-100 as a primary clinical screening tool using the wide spectrum of clinical samples assessed for platelet function as well as to perform the optimal algorithm for the use of PFA$^{(R)}$-100. We established the reference interval in 460 hospital inpatients defined as having normal platelet function based on classical laboratory tests. The reference interval by using the range $5^{th}$ and $95^{th}$ percentile was 84~251 seconds for males CEPI-CT and 85~249 seconds for females CEPI-CT. A total of 1,200 inpatients were enrolled to identify impaired hemostasis before surgical interventions. The abnormal group showing prolonged CEPI-CT was 303 cases (18.9%). Only 3 cases had both abnormal CEPI-CT and CADP-CT. Several factors including sample errors, drugs, hematologic abnoralities were contributed to unexpected prolonged CEPI-CT for screening test. The von Willebrand factor (vWF:Ag) assay was performed only in one patient to verify the algorithm for the use of PFA$^{(R)}$-100. The PFA$^{(R)}$-100 was sensitive and rapid method for primary screening test of platelet dysfunction, so we can substitute it for the bleeding time in routine clinical practice.

• 한국융합학회논문지
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• 제11권4호
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• pp.369-380
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• 2020

본 연구는 신규간호사의 그릿과 재직의도의 관계에서 임상수행능력의 매개효과를 규명하기 위해 시도된 서술적 상관관계연구이다. 연구대상은 2개 광역시와 1개 도의 300병상 이상 종합병원에서 근무하는 신규간호사 232명이었다. 자료분석은 기술통계, t-test, one-way ANOVA, Pearson's correlation coefficient로 하였고, 매개효과 분석은 Baron과 Kenny의 다중회귀분석을 활용한 3단계 분석방법과 Sobel test로 하였다. 연구결과 신규간호사의 그릿과 임상수행능력(r=.38, p=.011), 그릿과 재직의도(r=.32, p=.016), 임상수행능력과 재직의도(r=.33, p<.001)는 유의한 정적관계가 있었고, 그릿과 재직의도의 관계에서 임상수행능력은 부분 매개효과가 있는 것으로 확인되었다(z=3.14, p<.001). 본 연구결과를 근거로 신규간호사의 임상수행능력과 재직의도를 높여주기 위해 그릿을 향상시킬 수 있는 중재수행을 적극 권장한다.

• 한국융합학회논문지
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• 제9권4호
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• pp.443-452
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• 2018

본 연구는 간호사의 사건보고태도, 사건보고지식 및 안전분위기 인지수준을 파악하고 간호사가 인지하는 안전분위기에 영향을 미치는 요인을 규명하기 위함이다. 간호사 240명을 대상으로 구조화된 설문지를 이용하여 자료수집하였으며 분석은 기술통계, t-test, ANOVA, Scheffe test, Pearson상관계수 및 다중회귀분석으로 하였다. 5점 척도에서 간호사의 사건보고태도는 3.34, 사건보고지식 3.05, 안전분위기 인지는 3.25로 나타났다. 사건보고태도는 사건보고지식, 안전분위기와 양적상관관계가 있었으며(r=.33, p<.001; r=.38, p<.001) 사건보고지식도 안전분위기와 유의한 양적 상관관계를 나타내었다(r=.32, p<.001). 안전분위기에 영향을 미치는 요인은 사건보고지식과 사건보고태도 하위영역 중 개선효과에 대한 신념과 보고의도였으며 이들 요인은 안전분위기 인지수준의 24.7%를 설명하였다(F=12.22, p<.001). 그러므로 사건보고에 대한 교육과 긍정적 태도를 증진시켜 안전분위기를 조성하는 것은 안전사고 예방중재로 적용가능하며 환자안전을 위한 강화된 실무전략개발로 확대되어야 할 것이다.

• 대한물리의학회지
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• 제9권3호
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• pp.315-324
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• 2014

PURPOSE: This study aimed to determine the correlation of weight bearing ability at the affected side with balance and gait abilities for the development of pressure biofeedback based equipment to stroke patients. METHODS: This study included 35 patients with stroke patient. The tests were conducted to determine the weight bearing ratio while pushing a step forward the affected side, static balance ability using the total length of COP(Center of pressure), sway velocity of COP, COP velocity at the X and Y axis. Functional reaching test (FRT), berg balance scale (BBS) were used to assess the dynamic balance ability and timed up and go test (TUG), 10m walk test (10mWT) were used assess the gait ability respectively. In order to determine the correlation between measured variables, bivariate correlation analysis was conducted. RESULTS: A significant correlation of the weight bearing ratio were shown with COP total length and velocity(r=-.34), Y-axis velocity(r=-.39), FRT(r=.42), BBS(r=.54), TUG (r=-.39), and 10m walking test (r=-.42). CONCLUSION: This study result showed that as patients with stroke had more weight bearing ratio at the affected side, not only their static and dynamic balance abilities increased more but also functional gait ability improved more. These results mean that, to improve stroke patients' static, dynamic balance ability and gait ability, weight bearing training with the affected side foot placed one step forward necessary for gaits are important.

• 대한기계학회논문집A
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• 제33권5호
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• pp.521-528
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• 2009

One of reliability measurements of vehicle is estimated by driving mileage but the reliability of component, such as an hydraulic clutch system, is defined from the number of successful operational cycle. Relationship between these reliability measurement variables(mileage and cycle) should be examined first of all in the reliability estimation of components. Relationship between mileage and cycles is commonly known as linear function. However, the gradient depends on the operational environmental condition. Therefore, estimation of mission profile variable should be done with correlation analysis at the same time. In this paper, we derive mission profile variable of an hydraulic clutch system by field vehicle test and suggest the determination process of durability test parameters of CMC(Clutch Master Cylinder) with mission profile variable.

• 대한통합의학회지
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• 제8권3호
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• pp.153-162
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• 2020

Purpose : The purpose of this study is to investigate nursing students' levels of and relationships between college-related stress, self-efficacy, social support, and interpersonal skills. Methods : This study involved 352 nursing students at K University in B City, each who understood the study's purpose and agreed to participate in the study. The study's data were collected between April 8 and 19, 2019 and were analyzed using the SPSS for Windows 22.0 program based on frequencies, percentages, means, and standard deviations as well as a t-test, analysis of variance, post-hoc test, and correlation analysis results. The Scheffe test was performed for the post-hoc test, and the Pearson correlation coefficient was employed for the correlation analysis. Results : College-related stress showed statistically significant negative correlations with self-efficacy (r=-.310, p<.001), social support (r=-.312, p<.001), and interpersonal skills (r=-.226, p<.001). However, self-efficacy exhibited statistically significant positive correlations with social support (r=.548, p<.001) and interpersonal skills (r=.524, p<.001), and social support showed a statistically significant positive correlation with interpersonal skills (r=.644, p<.001). Therefore, higher levels of self-efficacy and social support and a lower level of college-related stress result in corresponding higher levels of interpersonal skills. Conclusion : Based on the results of this study, it is necessary to find measures to lower nursing students' college-related stress and increase their self-efficacy and social support, as well as to develop and operate specific intervention programs that can help enhance their interpersonal skills.