• 문화기술의 융합
• /
• 제6권1호
• /
• pp.83-90
• /
• 2020

본 연구의 목적은 보육교사의 정서노동과 회복탄력성 및 소진 간 관계를 살펴보고, 정서노동과 회복탄력성이 소진에 미치는 영향을 고찰하는 것이다. 연구대상은 수도권 소재 어린이집에 근무 중인 보육교사 251명이다. 연구대상의 정서노동과 회복탄력성 및 소진은 설문지를 사용하여 조사했다. 수집된 자료는 SPSS 21.0을 활용하여 분석했으며, 기술통계분석과 Pearson 상관관계분석 및 중다회귀분석을 실시했다. 자료분석에서 소진과 회복탄력성은 총점을 사용했으며, 정서노동은 하위요인(자연적행동, 내면적행동, 표면적행동) 점수를 사용했다. 연구결과로는 첫째, 보육교사의 자연적행동과 내면적행동은 소진과 부적 상관관계이고, 표면적행동은 소진과 정적 상관관계인 것으로 나타났다. 둘째, 보육교사의 표면적행동은 소진에 정적 영향을 미쳤고, 회복탄력성은 소진에 부적 영향을 주는 것으로 밝혀졌다.

• 한국콘텐츠학회논문지
• /
• 제19권6호
• /
• pp.236-248
• /
• 2019

수도권의 그린벨트는 도시 경계선을 설치하여 생태 보호체계를 구축하고 도시의 탄성을 강화하는 데 목적이 있다. 베이징시에서 현재 진행되고 있는 도시종합계획이 실시되는 기한 동안 두 그린벨트가 포함하는 지역의 녹색 공간은 변화에 따라 그 비율에 큰 차이가 존재한다. 본 연구는 이를 출발점으로 삼아 '도시 구조체계요소' 및 '정책과 계획요소'가 녹색 공간 규모의 변화와 갖는 상관성을 연구하여, 베이징시 녹색 공간의 계획 시행에 영향을 미치는 요소들을 탐구하고자 한다. 본 연구는 다변량 선형 회귀 모형을 이용하여 베이징의 두 그린벨트를 대상으로 삼아 도시체계요소 및 계획정책요소(독립 변수)와 그린벨트 내의 건설용 토지의 증가(종속 변수)간의 상관관계를 검증하였다. 인구밀집과 건설용 토지가 확장될 수 있는 동력의 영향을 받아 산지, 물가, 단위 면적당 임대료, 대중교통의 접근성, 신설된 국가 소유의 건설용 토지 등 도시체계요소는 녹색 밸트 내의 건설용 토지의 규모 변화와 상관관계를 보인다는 것을 알 수 있었다.

• 임상간호연구
• /
• 제16권3호
• /
• pp.145-155
• /
• 2010

Purpose: The purpose of this study was to investigate oncology nurses' professional quality of life and its correlations with job satisfaction and job stress in a tertiary hospital in Seoul, South Korea. Methods: A cross-sectional survey design was utilized to investigate 210 oncology nurses from various oncology and hemato-oncology units. Professional quality of life (ProQOL), which is conceptualized with three sub-dimensions (compassion satisfaction, burnout, and secondary traumatic stress), job satisfaction, job stress, demographic and work-related variables were measured. Results: The participants were all women, with the mean age of 28.4. The participants with high ProQOL was only 14.8%, and 75.3% and 77.6% of the participants reported a moderate to high level of burnout and secondary traumatic stress respectively. Job satisfaction, age, and the total years of nursing practice have positive correlations with compassion satisfaction. Also, compassion satisfaction was significantly different according to age group, work units, the level of education, nursing positions, and the years of practice. Conclusion: Since the level of professional quality of life among oncology nurses was relatively low, the program for oncology nurses to improve compassion satisfaction and to decrease compassion fatigue needs to be developed.

• 대한한방부인과학회지
• /
• 제22권1호
• /
• pp.148-160
• /
• 2009

Purpose: We intended to observe the correlations between Primary dysmenorrhea severity and Questionnaires for Blood Stasis Pattern. Methods: After initial approval by Kyung-Hee University Oriental Medical Hospital Institutional Review Board of Clinical Trials, volunteers for the clinical trial were recruited. We selected the 52 primary dysmenorrhea patients by the screening tests (clinical examination and inquiry). The severity of dysmenorrhea was evaluated by VAS (Visual Analog Scale), VRS (Verbal Rating Scale) & MVRS (Multidimensional Verbal Rating Scale). The severity of Blood Stasis was evaluated by Questionnaires for Blood Stasis Pattern. For statistics, we used Spearman's rho correlations, SPSS 13.0 for windows. Results: In case of VAS, though two items (眼瞼下靑紫, 便黑) of Questionnaires for Blood Stasis Pattern were correlated, total score & discriminant function score of Questionnaires for Blood Stasis Pattern were not correlated. In case of VRS, though two items (小腹痛, 夜間痛) of Questionnaires for Blood Stasis Pattern were correlated, total score & discriminant function score of Questionnaires for Blood Stasis Pattern were not correlated. In case of MVRS, though one items (久痺症) of Questionnaires for Blood Stasis Pattern were correlated, total score & discriminant function score of Questionnaires for Blood Stasis Pattern were not correlated. Conclusion: Though the results showed partial correlation of Primary dysmenorrhea severity and Questionnaires for Blood Stasis Pattern, we need further study after improvement and complementation of Questionnaires for Blood Stasis Pattern.

• 한국작물학회지
• /
• 제66권3호
• /
• pp.248-255
• /
• 2021

본 연구는 고품질의 들깨 신품종 육성을 위한 기초 자료로서 모본으로 종실용 품종인 '대실'과 부본으로 잎전용 품종인 '잎들깨1호'를 이용하여 교배된 재조합 집단(F₁)을 양성하였고, F₂세대부터 SSD법으로 계통을 전개한 고세대(F₇) RIL집단 277계통들에 대해서 농업적 형질과 종실의 품질특성을 비교하였다. 재조합 집단의 주요 농업적 형질의 변이를 분석한 결과 경장은 66~150 cm, 유효분지수는 5~23개, 화방군장은 5.1~10.5 cm, 화방군수는 17~131개 및 화방군당삭수는 23~39개 등으로 분포하였다. 종실의 품질 특성을 분석한 결과 주요 지방산인 리놀렌산(C18:3)은 54.2~64.1%, 기능 성분인 rosmarinic acid는 869.5~3,508.1 ㎍/g, luteolin은 47.4~864.3 ㎍/g 및 apigenin은 57.1~296.7 ㎍/g 등으로 분포하였다. 조사된 대부분의 농업적 형질이 변이의 폭이 크면서 정규곡선 양상을 보였으며, 양친의 특성보다 우월한 특성을 가진 후대들이 많이 나타나는 초월분리 현상을 확인하였다. 이러한 결과는 F₇ RIL 집단이 향후 QTL 분석뿐만 아니라 우수 품종 육성을 위한 중간 모본 양성에도 유용하게 활용될 수 있을 것으로 판단된다.

• 한국산업보건학회지
• /
• 제16권3호
• /
• pp.245-253
• /
• 2006

We evaluated the relations among exposure and urinary levels of Cr, folate, vitamin $B_{12}$ and Hcy levels in the workers chronically exposure to Cr. Subjects were 104 male employees, 65 workers exposed to Cr in 9 electroplating plants and 39 office workers who had never been occupationally exposed to hazardous substances including Cr. The geometric mean(GM) of Cr in workplace was $0.069{\pm}0.101mg/m^3$ and urinary Cr was $0.483{\pm}0.394mg/g$ creatinine and airborne Cr concentration was significantly correlated to the urinary concentration of Cr(r=0.900, p=0.000). The geometric mean concentration of urinary Cr in control group was $0.301{\pm}0.255mg/g$ creatinine. In comparing the workers exposed to Cr with controls, significantly higher mean plasma levels were found of Hcy($11.3{\pm}4.9$ vs $9.4{\pm}4.7{\mu}mol/{\ell}$, p=0.05), but vitamin $B_{12}$ levels ($181.8{\pm}68.7$ vs $216.0{\pm}64.3nmol/{\ell}$, p=0.01) was significantly decreased. Hcy concentrations correlated positively with airborne Cr concentrations(r=0.287, p=0.004) and urinary Cr concentrations(r=0.244, p=0.015) but folate concentrations correlated negatively with airborne(r=-0.234, p=0.020) and urinary Cr concentrations(r=-0.640, p=0.090), respectively. No correlations were observed between vitamin $B_{12}$, airborne and urinary Cr concentrations. Also, Hcy concentrations correlated positively with vitamin $B_{12}$(r=0.295, p=0.0020 and negatively with folate concentrations(r=-0.196, p=0.046). The various biological(i.e. age and serum indicates) or lifestyle factors(i.e. medication, smoking, alcohol and coffee intake), also taken into account as potential confounders, did not influence the correlations found. Thus, this study found evidence that Cr might be associated with elevated plasma levels of Hcy. Furthermore, elevated plasma levels of Hcy were significantly associated with folate and vitamin $B_{12}$ concentration.

• 한국보육학회지
• /
• 제18권1호
• /
• pp.193-216
• /
• 2018

본 연구의 목적은 유아교사의 정서노동이 심리적 소진에 미치는 영향에서 원장의 변혁적 및 거래적 리더십의 조절효과를 분석하는데 있다. 본 연구대상은 경기도에 소재한 유치원 및 어린이집에 재원 중인 교사 211명을 대상으로 하였다. '유아교사 정서노동 검사도구', '원장의 변혁적 및 거래적 리더십 검사도구', 그리고 '유아교사의 심리적 소진 검사도구'를 사용하여 연구자료를 수집하였으며 수집된 자료는 Pearson 적률 상관계수와 위계적 중다회귀분석을 통해 검증하였다. 연구결과, 첫째, 유아교사의 정서노동은 심리적소진과 정적상관관계가 나타났으며 원장의 변혁적 및 거래적 리더십은 심리적 소진과 부적 상관관계가 나타났다. 둘째, 유아교사의 정서노동은 심리적 소진에 정적예측변인으로 나타났다. 셋째, 원장의 변혁적 및 거래적 리더십은 심리적 소진에 부적예측변인으로 나타났다. 넷째, 원장의 변혁적 리더십은 심리적 소진의 하위영역 중 직문환경 불만족에 조절효과가 나타났으며, 원장의 거래적 리더십은 심리적 소진의 하위영역 중 신체정서적 고갈에 조절효과가 나타났다.

• 한국산학기술학회논문지
• /
• 제9권3호
• /
• pp.574-579
• /
• 2008

수평관내 $CO_2$의 증발 열전달 계수를 실험적으로 조사하였다. 냉매 순환루프의 주요 구성품은 수액기, 변속냉매 펌프, 질량 유량계, 예열기, 증발기(시험부)로 구성된다. 시험부는 내경 4.57 mm의 수평 평활 스텐레스관이다. 실험은 질량유속 $400{\sim}900kg/m^2s$, 포화온도 $5{\sim}20^{\circ}C$, 열유속 $10{\sim}40kW/m^2$인 조건에서 수행하였다. 실험결과로부터 $CO_2$의 열전달은 대류비등보다는 핵비등에 더 많은 영향을 받는 것을 알 수 있었고, $CO_2$의 질량유속은 핵비등에 많은 영향을 미치지 않는 것으로 나타났다. 실험결과와 종래의 상관식을 비교해 본 결과, 기존의 상관식은 실험데이터를 과소예측하였지만, 정 등의 상관식은 좋은 일치를 보였다. 따라서, 수평관내 $CO_2$의 증발 열전달 계수를 예측할 수 있는 정확한 상관식의 개발이 필요하리라 판단된다.

• Animal Bioscience
• /
• 제35권1호
• /
• pp.13-21
• /
• 2022

Objective: The aim of the study was to evaluate the influence of gene polymorphisms and nongenetic factors on the somatic cell score (SCS) in the milk of Holstein (n = 148) and Simmental (n = 73) cows and their crosses (n = 6). Methods: The SCS was calculated by the formula SCS = log₂(SCC/100,000)+3, where SCC is the somatic cell count. Polymorphisms in the casein alpha S1 (CSN1S1), beta-casein (CSN2), kappa-casein (CSN3), beta-lactoglobulin (LGB), acyl-CoA diacylglycerol transferase 1 (DGAT1), leptin (LEP), fatty acid synthase (FASN), stearoyl CoA desaturase 1 (SCD1), and 1-acylglycerol-3-phosphate O-acyltransferase 6 (AGPAT6) genes were genotyped, and association analysis to the SCS in the cow's milk was performed. Further, the impact of breed, farm, year, month of the year, lactation stage and parity on the SCS were analysed. Phenotype correlations among SCS and milk constituents were computed by Pearson correlation coefficients. Results: Only CSN2 genotypes A¹/A² were found to have significant association with the SCS (p<0.05), and alleles of CSN1S1 and DGAT1 genes (p<0.05). Other polymorphisms were not found to be significant. SCS had significant association with the combined effect of farm and year, lactation stage and month of the year. Lactation parity and breed had not significant association with SCS. The phenotypic correlation of SCS to lactose content was negative and significant, while the correlation to protein content was positive and significant. The correlations of SCS to fat, casein, nonfat solids, urea, citric acid, acetone and ketones contents were very low and not significant. Conclusion: Only CSN2 genotypes, CSN1S1 and DGAT1 alleles did show an obvious association to the SCS. The results confirmed the importance of general quality management of farms on the microbial milk quality, and effects of lactation stage and month of the year. The lactose content in milk reflects the health status of the udder.

• Geomechanics and Engineering
• /
• 제34권4호
• /
• pp.449-459
• /
• 2023

The design and development of underground nuclear waste repositories should cover the performance evaluation of the different components such as the construction materials because the long term stability will depend on their response to the surrounding conditions. In South Korea, Gyeonju bentonite has been proposed as a candidate to be used as buffer and backfilling material, especially in the form of blocks to speed up the construction process. In this study, various cylindrical samples were prepared with different dry density and water content, and their physical and mechanical properties were analyzed and correlated with X-ray CT observations. The main objective was to characterize the samples and establish correlations for non-destructive estimation of physical and mechanical properties through the utilization of X-ray CT images. The results showed that the Uniaxial Compression Strength and the P-wave velocity have an increasing relationship with the dry density. Also, a higher water content increased the values of the measure parameters, especially for the P-wave velocity. The X-ray CT analysis indicated a clear relation between the mean CT value and the dry density, Uniaxial Compression Strength, and P-wave velocity. The effect of the higher water content was also captured by the mean CT value. Also, the relationship between the mean CT value and the dry density was used to plot CT dry densities using CT images only. Moreover, the histograms also provided information about the samples heterogeneity through the histograms' full width at half maximum values. Finally, the particle size and heterogeneity were also analyzed using the Madogram function. This function identified small particles in uniform samples and large particles in some samples as a result of poor mixing during preparation. Also, the μ_max value correlated with the heterogeneity, and higher values represented samples with larger ranges of CT values or particle densities. These image-based tools have been shown to be useful on the non-destructive characterization of bentonite samples, and the establishment of correlations to obtain physical and mechanical parameters solely from CT images.