• Toxicological Research
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• 제23권1호
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• pp.39-46
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• 2007

The aim of the study was to see if there is any differences in urinary 1-hydroxypyrene glucuronide (1-OHPG) and 2-naphthol levels in children ($8{\sim}14$ years old) and their mothers ($30{\sim}46$ years old) living three cities in South Korea (Seoul, Incheon and Pohang) and three in China (Changchun, Datong and Kunming), where the levels of air pollution varies. The factors related with urinary biomarkers levels were also evaluated. The study subjects consisted of 118 Korean (60 children and 58 their mothers) and 120 Chinese (60 children and 60 their mothers). Urinary 1-OHPG was measured by synchronous fluorescence spectroscopy after immuno-affinity purification using monoclonal antibody 8E11 and urinary 2-naphthol concentrations were determined by HPLC with fluorescence detector. Information on recent consumption of diet containing high PAHs, environmental tobacco smoke (ETS), type of cooking and heating fuels, and other life-style characteristics were collected by self-administered questionnaire. The arithmetic mean of urinary 1-OHPG levels (n = 120, $mean{\pm}SD$, $6.77{\pm}7.96{\mu}mol/mol$ creatinine) in Chinese were 10 fold higher than those in Korean (n = 118, $0.62{\pm}0.61{\mu}mol/mol$ creatinine) (P < 0.01). Urinary 2-naphthol levels in Chinese (n = 119, $59.50{\pm}82.29{\mu}g/g$ creatinine) were significantly higher than those in Korean (n = 117, $25.09{\pm}46.56{\mu}g/g$ creatinine) (P < 0.01). Urinary 1-OHPG and 2-naphthol levels were significantly higher in children living the polluted cities in China (Datong and Chanchun, respectively). Multiple linear regression analysis indicated that living in factory area (vs. residential area) and use of coal stove as heating fuel were significant predictors for urinary 1-OHPG (overall model $R^2$= 0.46, n = 204). And ETS was predictor for urinary 2-naphthol levels in Korean ($R^2$ = 0.36, n = 46). These results indicated that urinary 1-OHPG and 2-naphthol levels were related with different ambient particulate air pollution, type of heating fuels and ETS.

• 한국산업보건학회지
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• 제24권4호
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• pp.566-577
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• 2014

Objectives: The purpose of this study was to evaluate the predictors of metabolic syndrome among police officers and determine its prevalence. Methods: Data were collected through a questionnaire survey and medical examination among 1,089 male police officers from 2010 to 2013. Information about age, marital status, smoking, drinking and exercise were based on data from the self-administered questionnaire. We collected job type, working position, and work duration from company personnel data and the indices of metabolic syndrome through the medical examination. Metabolic syndrome was assessed according to the NCEP-ATP III definition and the Asia-Pacific obesity guidelines. Results: The prevalence of metabolic syndrome among the 1,089 police officers was 33.4%. The prevalence of metabolic influencing factors were 47.5% for abdominal obesity, 30.1% for hypertension, 37.1% for hypertriglyceridemia, 22.0% for low HDL-cholesteralemia and 13.2% for hyperglycemia. Factors such as age, drinking, and family history were significantly associated with metabolic syndrome. Conclusions: Weight control and a moderate drinking program may decrease the prevalence of metabolic syndrome among male police officers.

• 한국조리학회지
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• 제23권6호
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• pp.99-109
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• 2017

This study aims to investigate the impacts of marketing motive (public- vs. firm-interest) and ad appeal (soft- vs. hard-sell) types on consumers' ad attitudes and behavioral intention in hotels' green advertising. From 711 US respondents, a multivariate analysis of covariance (MANCOVA) was employed to test main effects of marketing motive and ad appeal types on ad recipients' affective and cognitive ad attitudes, while controlling their environmental consciousness. Further, the study conducted a multiple regressions analysis to examine the influence of ad attitudes on respondents' intention to visit the hotel. The study found that a public-serving claim can yield more positive affective ad attitude than a firm-interested claim, regardless of ad image type (soft- or hard-sell image). The result also revealed that a soft-sell ad image can elicit more positive affective ad attitude than a hard-sell one. On the other hand, the study showed that consumers' affective and cognitive ad attitudes are significant predictors of behavioral intention (i.e., visit intention). The study provided theoretical and managerial implications for hospitality researchers and hotel marketers to effectively design hotels' green advertising to ultimately increase consumers' visit intention.

• 지역사회간호학회지
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• 제28권4호
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• pp.472-481
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• 2017

Purpose: The purpose of this study were to compare working condition, socioeconomic status, and health status between elderly and non-elderly workers and to examine the influencing factors of health status according to age groups. Methods: This study is a secondary analysis of data extracted from the 2014 Korean Working Conditions Survey. For the present analysis, 15,980 elderly workers over the age of 55 and 32,037 non-elderly workers under the age of 55 were selected. Results: The prevalence of subjective unhealthy status and poor mental health were significantly higher among the elderly workers than the non-elderly workers. The elderly workers were more likely to have lower level of education and income than the non-elderly workers. They also reported less support from colleagues and managers, however, have more decision authority. Among the elderly workers, long working hours, awkward posture, physical environmental risks, quantitative demand, decision authority, social support, age discrimination, education level, and income level were significant predictors of subjective health status or mental health. Conclusion: For keeping elderly workers healthy and productive, work environment needs to become more age-friendly. An age-friendly workplace may include: accommodative support, workers' participation, minimization of environment risk, etc.

• 지역사회간호학회지
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• 제28권4호
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• pp.463-471
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• 2017

Purpose: This study aimed to identify the association between psychosocial work environment and depressive symptoms among Korean teachers. Methods: Data on 235 elementary school teachers and 341 middle and high school teachers was obtained from the 2014 Korean Working Condition Survey. The effect of psychosocial work environment on depressive symptoms was determined by multiple logistic regression analyses. Results: The prevalence of depressive symptoms was 18 % in elementary school teachers and 24 % in middle and high school teachers. When adjusted for demographics and other socio-psychological and environmental factors, 'social community at work' served as a protection factor for Korean teachers' depressive symptoms. In addition, 'cognitive demands' in elementary school teachers and 'social support from supervisors' in middle and high school teachers were found to be predictors of depressive symptoms. Conclusion: Interventions to increase 'social community at work' and 'social support from supervisors', and to decrease 'cognitive demands' may be helpful for Korean teachers at risk of depression.

• 한국측량학회지
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• 제36권1호
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• pp.25-32
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• 2018

Namdae-cheon in Gangwon-do Province, Korea, is a valuable well-preserved lagoon. The estuary of Namdae-cheon Stream is closed because of the surrounding natural sand shoal. Thus, during the dry season, river water cannot easily flow to the ocean and therefore stagnates. River water congestion causes environmental deterioration of estuaries, often by eutrophication. In this study, we examined wall disintegration in the estuary area and used it to determine appropriate measures for the conservation of estuary water quality in the future. A total of 24 sites were selected, with 13 sites on the west side and 11 sites on the east side of the estuary study area. Samples were collected and analyzed for particle size and moisture content both vertically and horizontally. Sedimentary deposition rate was measured, and subsidence analysis was performed. Particle size, water content, sedimentary deposition, and subsidence analyses indicated that flow shifted to the west during the study period. In conjunction with other variables that may affect changes in flow, these parameters can be used in future research to predict shoal breaches and associated changes in water flow direction.

• Child Health Nursing Research
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• 제23권4호
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• pp.449-458
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• 2017

Purpose: The purpose of this study was to identify factors related to level of satisfaction among mothers of preschoolers. Methods: Participants were 359 mothers of firstborn healthy preschoolers. The questionnaires were collected from August 1 to November 21, 2012. Data were analyzed using SPSS 20.0. Results: The mean score for degree of mothers' parenting satisfaction was 5.94 out of 7. There were significant differences in the level of parenting satisfaction according to mother's job (t=2.48, p=.014), planned pregnancy (t=3.07, p=.002), number of children (t=2.22, p=.027), and parenting education (F=4.33, p=.005). The environmental variables of age of spouse (F=3.06, p=.048) and monthly income of the household (F=2.87, p=.036) also seemed to have an influence. Analysis of predictors such as the mother's job, planned pregnancy, parenting education, overall health problems, parenting stress, perception of emotional status and behaviors in children, age of spouse, and spouse's support explained 31.5% of the variance in mother's parenting satisfaction. Conclusion: The results suggest a need to develop nursing intervention programs for parenting stress reduction, and health programs for fathers to support mothers' child rearing.

• Asian Journal of Business Environment
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• 제7권1호
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• pp.13-23
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• 2017

Purpose - Pleasing ambient colors, music, scent, layout and salespeople are hypothesized to positively impact shoppers' perceptions about the atmosphere of a store. Few studies on the interactive effect of these atmospheric factors have earlier been undertaken. This paper looks at the interactive effect of color on the other predictor variables. Research design, data, and methodology - This study is from field locations in the shopping malls located in Delhi NCR. A descriptive study was undertaken to decipher the interactive effect of color with music, scent, layout and salespeople. Moderation of color on music, scent, layout and salespeople is regressed on store atmospherics. The authors investigate the effects of color, light, music, scent, layout and salespeople on store atmospherics in a retail context. They also study the interactive effect of color with predictor variables which significantly influence the perception of store atmospherics. Results - The paper reveals that music, scent, layout and salespeople influence customer's perception about store atmospherics. The interactive effect of color with scent, layout and sales people influence customer's perception about store atmospherics significantly. It does not moderate with layout and music. Conclusions - Store color is important in predicting store atmospherics. Care is needed to ensure that the effects of different environmental stimuli match.

• 한국통계학회:학술대회논문집
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• 한국통계학회 2005년도 추계 학술발표회 논문집
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• pp.31-36
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• 2005

An identification and characterization of susceptibility genes for common complex multifactorial diseases is a challengeable task, in which the effect of single genetic variation will be likely dependent on other genetic variations(gene-gene interaction) and environmental factors (gene-environment interaction). To address is issue, the multifactor dimensionality reduction (MDR) has been proposed and implemented by Ritchie et al. (2001), Moore et al. (2002), Hahn et al.(2003) and Ritchie et al. (2003). With MDR, multilocus genotypes effectively reduce the dimension of genotype predictors from n to one, which improves the identification of polymorphism combinations associated with disease risk. However, MDR cannot handle missing observations appropriately, in which missing observation is treated as an additional genotype category. This approach may suffer from a sparseness problem since when high-order interactions are considered, an additional missing category would make the contingency table cells more sparse. We propose a new MDR approach with minimum loss of sample sizes by considering missing data over all possible multifactor classes. We evaluate the proposed MDR by using the prediction errors and cross validation consistency.

• 한국직업건강간호학회지
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• 제22권4호
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• pp.285-294
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• 2013

Purpose: This study aimed to explore professional autonomy, nursing work environment, and clinical decision making ability and to determine predictors of clinical decision making ability among clinical nurses. Methods: A cross-sectional design was used in this study and 263 clinical nurses were selected from advanced-level hospitals with over 500 beds located in D metropolitan city. Independent t-test, ANOVA, Pearson's correlation coefficients and hierarchical multiple regression analyses were done with the SPSS/WIN 20.0 program. Results: Clinical nurses reported moderate levels of professional autonomy, nursing work environment and clinical decision making ability. Marital status, professional autonomy and nursing work environment accounted for 25% of variance in clinical decision making ability required in various clinical settings. Importantly, being married, higher level of professional autonomy, and greater satisfaction with work environment were significantly associated with better decision making ability. Conclusion: Findings indicate that improving the quality of decision making in the healthcare settings requires awareness of the multiple effects of individual, occupational and environmental features. Nurses' ability to make effective clinical decisions may rely on personal characteristics, the degree of autonomy in their job, and nurses' satisfaction with their work environment.