• 디지털융복합연구
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• 제18권12호
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• pp.377-387
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• 2020

본 연구의 목적은 종합병원 간호사의 감정노동, 윤리적 풍토, 직무만족 및 재직의도를 파악하고 변수들 간의 관계와 재직의도에 영향을 미치는 요인을 확인하기 위한 서술적 조사연구이다. 연구 대상자는 4개 종합병원에 근무하는 간호사 198명으로, 구조화된 설문지를 이용하여 2019년 9월 18일부터 9월 30일까지 자료를 수집하였다. 수집된 자료는 SPSS WIN 25.0을 이용하여 t-test, ANOVA, Pearson's correlation coefficients, Multiple regression으로 분석하였다. 연구결과 종합병원 간호사의 재직의도는 윤리적 풍토(r=.345, p<.001)와 직무만족(r=.388, p<.001)은 정적 상관관계가 있었고, 감정노동(r=-.153, p=.031)은 부적 상관관계가 있는 것으로 나타났다. 종합병원 간호사의 재직의도에 영향을 미치는 요인은 직무만족(β=.27, p=.001), 연령(β=.27, p<001), 윤리적 풍토(β=.16, p=044)이며, 변수의 설명력은 24.2%이었다. 종합병원 간호사의 재직의도를 높이기 위해서는 직무만족을 높이고 건전한 윤리적 풍토를 만들어야 하며, 연령별로 재직의도를 높일 수 있는 중재 프로그램 개발이 필요하다.

• 산업노동연구
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• 제23권2호
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• pp.169-193
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• 2017

본 연구는 우리나라에서 동학적 고용안정성을 진단하기 위해서 고용유지율에 영향을 미치는 결정요인을 분석하였다. 고용유지 결정요인 분석을 위해서 사업체 패널자료와 고용보험 이력자료를 연계하고, 다층적 위계적 자료 분석에 적절한 다층 분석모형을 활용하여 결정요인을 분석하였다. 분석결과, 우리나라에서 고용안정성이 매우 낮은 것은 임금수준이 낮고 비정규직 활용수준이 높은 주변부 부문이 광범위하게 존재하기 때문으로 추정된다. 또한 우리나라의 고용구조는 고용과 실업이 반복되는 단기간 고용이 상당한 영역을 차지하면서 전반적으로 고용안정성이 약한 것으로 평가된다. 이러한 사실은 기업이나 개인적 차원에서 숙련향상 및 숙련형성기회가 제한되면서 지속적인 성장 제약요인으로 작용할 가능성이 높으며, 이에 대한 적극적 대응책으로 고용구조의 질적 개선노력이 요구된다.

• Asian-Australasian Journal of Animal Sciences
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• 제16권4호
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• pp.515-518
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• 2003

Six mature purebred Angus cows ($3.5{\pm}1.5$ years of age, $631.36{\pm}8.63kg$), three pregnant ($250{\pm}7$ days pregnant) and three non-pregnant and eight mature Suffolk ewes ($5{\pm}1.2$ years of age, $68.18{\pm}2.3kg$) four pregnant $115{\pm}5$ days pregnant) and four nonpregnant were utilized in a five-day metabolic trial to determine the effects of gestational status (pregnant vs. non-pregnant) on apparent absorption and retention of copper (Cu) and zinc (Zn). Animals were selected based on body weight, age, and gestational status, and randomly assigned to metabolic crates for total fecal and urine collection. Animals were allowed to acclimate to their new environment for seven days. Pregnant and non-pregnant cows and ewes were then paired (within a species) by body weight and pair-fed throughout the 5 day collection period. Copper and Zn intakes were similar for pregnant and non-pregnant animals within a species. Apparent absorption of Cu (p<0.06) and Zn (p<0.04) were higher in pregnant cows relative to non-pregnant cows. Pregnant cows also had a higher apparent retention of Cu (p<0.05) and Zn (p<0.06) relative to non-pregnant cows. Pregnant ewes had a higher (p<0.01) apparent absorption and retention of Zn compared to non-pregnant ewes. However, apparent absorption and retention of Cu were similar for pregnant and non-pregnant ewes. These data indicate that certain physiological and/or metabolic parameters are altered in pregnant cows and ewes consuming an alfalfa-based diet that enhance the apparent absorption and retention of certain trace minerals.

• The Journal of Advanced Prosthodontics
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• 제10권1호
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• pp.1-7
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• 2018

PURPOSE. The aim of this study was to evaluate the effects of abutment diameter, cement type, and re-cementation on the retention of implant-supported CAD/CAM metal copings over short abutments. MATERIALS AND METHODS. Sixty abutments with two different diameters, the height of which was reduced to 3 mm, were vertically mounted in acrylic resin blocks with matching implant analogues. The specimens were divided into 2 diameter groups: 4.5 mm and 5.5 mm (n=30). For each abutment a CAD/CAM metal coping was manufactured, with an occlusal loop. Each group was sub-divided into 3 sub-groups (n=10). In each subgroup, a different cement type was used: resin-modified glass-ionomer, resin cement and zinc-oxide-eugenol. After incubation and thermocycling, the removal force was measured using a universal testing machine at a cross-head speed of 0.5 mm/min. In zinc-oxide-eugenol group, after removal of the coping, the cement remnants were completely cleaned and the copings were re-cemented with resin cement and re-tested. Two-way ANOVA, post hoc Tukey tests, and paired t-test were used to analyze data (${\alpha}=.05$). RESULTS. The highest pulling force was registered in the resin cement group (414.8 N), followed by the re-cementation group (380.5 N). Increasing the diameter improved the retention significantly (P=.006). The difference in retention between the cemented and recemented copings was not statistically significant (P=.40). CONCLUSION. Resin cement provided retention almost twice as strong as that of the RMGI. Increasing the abutment diameter improved retention significantly. Re-cementation with resin cement did not exhibit any difference from the initial cementation with resin cement.

• 분석과학
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• 제12권5호
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• pp.387-396
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• 1999

역상 액체크로마토그래피에서 몇가지 Co(II)-dithiocarbamate(DTC)의 머무름 거동을 고찰하였다. 얻어진 머무름 자료들을 van't Hoff plot하여 킬레이트가 이동상으로부터 정지상으로 전이하는 엔탈피와 엔트로로피를 각각 계산하였다. 엔탈피값에 대한 In k'의 의존성을 조사한 결과 이동상중 유기 용매의 비가 증가할수록 감소하였다. 그리고 $-{\Delta}H^0$와 In k를 도시한 직선의 기울기로부터 구한 보정 온도(${\beta}$)는 765.3-888.5 K 범위이었다. 따라서 DTC 킬레이트들의 머무름 거동은 온도변화에 무관하게 일정하며, 주로 소용매성 효과에 영향을 받는다는 사실을 확인하였다. 아울러 머무름 실험식 $log\;k^{\prime}=log\;{k_w}^{\prime}-S_{\varphi}$으로부터 얻어진 S 지수와 log k'과의 선형관계로부터, S 지수는 주로 DTC 킬레이트와 이동상의 상호작용에 영향을 받는다는 것을 알 수 있었다.

• The Journal of Advanced Prosthodontics
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• 제8권5호
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• pp.404-410
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• 2016

PURPOSE. Considering the importance of retention in the success and long-term clinical service of fixed partial dentures (FPDs) as well as the existing controversy regarding the effect of GLUMA desensitizer on the retention of full metal crowns cemented with RelyX U200 self-adhesive cement, this study aimed to assess the effect of GLUMA desensitizer on the retention of full metal crowns cemented using RelyX U200. MATERIALS AND METHODS. In this experimental study, 20 sound human premolars were prepared; a 0.5 mm chamfer finish line was prepared above the cementoenamel junction. The teeth were randomly assigned to two groups: a desensitizer group (n = 10, treated with GLUMA desensitizer) and a control (n = 10, no surface treatment). Full metal crowns were fabricated of base metal alloy and had a ring. All crowns were cemented with RelyX U200 and subjected to retention test by using a universal testing machine. The data were analyzed using SPSS version 20 and independent t-test. RESULTS. The mean tensile bond strength was significantly higher in the GLUMA desensitizer group ($230.63{\pm}63.8N$) compared to the control group ($164.45{\pm}39.3N$) ($P{\leq}.012$). CONCLUSION. GLUMA desensitizer increases the tensile bond strength of RelyX U200 self-adhesive cement to dentin.

• Journal of Preventive Medicine and Public Health
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• 제49권6호
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• pp.386-393
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• 2016

Objectives: General practitioners (GPs) retention in rural and underserved areas highly effects on accessibility of healthcare facilities across the country. Education seems to be a critical factor that affects GPs retention. Thus, the present study aimed at inquiry into medical education challenges that limit their retention in rural and underserved areas. Methods: A qualitative approach was applied for the aim of this study. Data were gathered via 28 semi-structured interviews with experts at different levels of Iran's health system as well as GPs who retained and refused to retain working in rural settings. Interviews mainly were performed face-to-face and in some cases via telephone during 2015 and then coded and analyzed using content analysis approach. Results: Iran's medical education is faced with several challenges that were categorized in four main themes including student selection, medical students' perception about their field of study, education setting and approach, curriculum of medical education. According to experts this challenges could results in making GP graduates disinterested for practicing in rural and underserved areas. Conclusions: Challenges that were found could have negative effects on retention. Modification in student's perception about rural practice could be done via changing education setting and approach and curriculum. These modifications could improve GPs retention in rural and underserved areas.

• 한국콘텐츠학회논문지
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• 제13권11호
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• pp.856-865
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• 2013

인터넷쇼핑몰의 시장이 점점 확장되고 경쟁이 심화되기 때문에 인터넷쇼핑몰의 서비스품질은 더욱 중시되고 있다. 또한 서비스품질에 따라 인터넷쇼핑몰의 고객유지에 대한 관심이 많이 생겼으며 인터넷쇼핑몰의 서비스품질의 차별화가 성공요인이 되고 있다. 이에 따라 논문에서는 인터넷쇼핑몰의 서비스요인에 대해 살펴보고 실제 인터넷쇼핑몰에서 제품을 구매한 경험이 있는 고객들을 대상으로 하여 설문조사를 실시함으로써 이들 간의 관계를 실제적으로 규명해 보고자 한다. 결과적으로, 서비스품질은 고객만족에 대한 긍정적인 영향관계가 있는 것으로 밝혀졌다. 그리고 고객만족, 신뢰와 몰입 간에 유의한 긍정적인 관계를 가지고 있으며 고객유지에 대해 긍정적인 영향을 미치는 것으로 밝혀졌다. 이러한 연구 결과를 통하여 인터넷쇼핑몰에서 소비자의 신뢰, 만족 및 몰입을 높이기 위해서는 단일 차원이 아닌 다차원적인 개념으로 통합적으로 행사하여야 함을 알 수 있다. 그러므로 고객과의 관계품질을 형성하는 것은 중요하며, 고객과의 장기적인 관계를 형성할 수 있는 방안을 모색해야 할 것이다.

• 한국물환경학회지
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• 제33권5호
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• pp.563-571
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• 2017

Because of the rapid progress of urbanization in recent decades, the proportion of impervious areas in cities has increased. As a result, hydrological properties of urban streams have changed and non-point pollution sources have increased, that have had considerable influence on human life and ecosystems. To manage these situations, application of non-point pollution reduction facilities and LID facilities are expanding recently. In this study, it is investigated if rainfall interception rate used in design of non-point pollution reduction facilities can be applied to design of LID facilities. For this purpose, EPA SWMM is constructed for part of Noksan National Industrial Complex area wherein long-term observed storm water data can be obtained and storm water interception rates for various design capacities of a bio-retention LID facility reservoirs are estimated. While sensitivity of storm water interception rate according to design specifications of bio-retention facility is not large, sensitivity of storm water interception rate according to regional rainfall characteristics is relatively large. As a result of comparing present rainfall interception rate estimation method with the one proposed in this study, the present method is highly likely to overestimate performance of the bio-retention facility. Finally, a new storm water interception rate formula for bio-retention LID facility is proposed.

• 대한한방소아과학회지
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• 제33권4호
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• pp.47-59
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• 2019

Objectives The purpose of this study is to analyze recent Chinese randomized controlled trials on efficacy and safety of the retention enema with herbal medicine in pediatric diarrhea. Methods We searched the recent Chinese randomized controlled trials from the China National Knowledge Infrastructure (CNKI) by using key words; '保留灌腸', '小兒', '腹瀉' and '泄瀉' with data range from January $1^{st}$, 2010 to March $2^{nd}$, 2019. Year of the publication, demographic information, disease, intervention, outcome measure, results, adverse events and composition of herbal medicine were analyzed for this study. Results 19 out of 32 studies were selected and analyzed. The most commonly used herbal medicine was Galgeungeumlyeon-tang modification (葛根芩連湯加減), and the most widely used retention enema method was to retain for 15 minutes and administer twice a day for 3 days. In most of the studies, retention enema with herbal medicine in pediatric diarrhea showed significant efficacies. No adverse effects were reported from the studies. Conclusions The results of these studies from China showed that the retention enema with herbal medicine in pediatric diarrhea may be effective and safe.