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121.
Antecedents and consequences of satisfaction with work–family balance: A moderating role of perceived insider status 下载免费PDF全文
This study developed a moderated mediation model to investigate how family‐supportive paid leave and supervision affect employees' satisfaction with work–family balance and in turn their affective organizational commitment and supervisor‐directed organizational citizenship behavior depending on their perceived insider status in the organization. Our analysis of data collected from 118 employee–supervisor dyads in Korean organizations revealed that satisfaction with work–family balance mediated the linkages from family‐supportive supervision to affective organizational commitment and supervisor‐directed organizational citizenship behavior, and the linkage from family‐supportive paid leave to affective organizational commitment. Results further showed that the entire mediational process for family‐supportive supervision was more pronounced for those who perceived themselves to be an insider of their organizations, while the same pattern was not found for the meditational process related to family‐supportive paid leave. Our findings provide theoretical implications for work–family balance research and offer practical suggestions to make employees satisfied with work–family balance. 相似文献
122.
Jing Feng HeeSun Choi Fergus I. M. Craik Brian Levine Sylvain Moreno Gary Naglie 《Traffic injury prevention》2018,19(2):141-146
Objectives: The majority of existing investigations on attention, aging, and driving have focused on the negative impacts of age-related declines in attention on hazard detection and driver performance. However, driving skills and behavioral compensation may accommodate for the negative effects that age-related attentional decline places on driving performance. In this study, we examined an important question that had been largely neglected in the literature linking attention, aging, and driving: can top-down factors such as behavioral compensation, specifically adaptive response criteria, accommodate the negative impacts from age-related attention declines on hazard detection during driving?Methods: In the experiment, we used the Drive Aware Task, a task combining the driving context with well-controlled laboratory procedures measuring attention. We compared younger (n = 16, age 21–30) and older (n = 21, age 65–79) drivers on their attentional processing of hazards in driving scenes, indexed by percentage of correct responses and reaction time of hazard detection, as well as sensitivity and response criteria using signal detection analysis.Results: Older drivers, in general, were less accurate and slower on the task than younger drivers. However, results from this experiment revealed that older, but not younger, drivers adapted their response criteria when the traffic condition changed in the driving scenes. When there was more traffic in the driving scene, older drivers became more liberal in their responses, meaning that they were more likely to report that a driving hazard was detected.Conclusions: Older drivers adopt compensatory strategies for hazard detection during driving. Our findings showed that, in the driving context, even at an older age our attentional functions are still adaptive according to environmental conditions. This leads to considerations on potential training methods to promote adaptive strategies that may help older drivers maintain performance in road hazard detection. 相似文献
123.
Regional Environmental Change - Hydrological impact studies of climate change increasingly take land use changes into account. However, the Midwestern USA is still understudied in this context.... 相似文献
124.
Jae S. Choi 《Environmental monitoring and assessment》1998,49(2-3):281-290
In this paper, we examine the consequences of rapid climate change on lake ecosystems in terms of two main effects: variability effects and magnitude effects. How these factors influence life history selection is considered by focusing upon body size as a quantifiable and strong correlate of life history variation (Pianka 1970, McNab 1980, Charnov 1991). We then consider the relationship between the concept of biological diversity and the diversity of life history strategies in the context of rapid climate change. 相似文献
125.
Choi Yong Choi Hyeong-Jin Rhee Seung-Whee 《Journal of Material Cycles and Waste Management》2023,25(4):2195-2204
Journal of Material Cycles and Waste Management - With the prolonged COVID-19 pandemic worldwide, lifestyles have totally changed and the characteristics of waste generation have also changed... 相似文献
126.
Sung Mo Son Uk Yeong Kim Ik Sang Shin Yong Kang Suk Hwan Kang Byung Tae Yoon Myung Jae Choi 《Journal of Material Cycles and Waste Management》2009,11(2):138-143
The characteristics of bubble properties and the chaotic flow behavior of gas were investigated in an annular fluidized bed
(0.102 m in inner diameter and 2 m in height) because the behavior of gas flow in such a reactor is one of the important factors
governing reactor operation, reactor performance, and the reaction itself. Pressure fluctuations as a state variable for the
analysis of gas flow behavior were measured and analyzed. Bubble properties were determined by adopting the cross-correlation
function of pressure fluctuations. The resultant chaotic flow behavior of gas was interpreted by means of chaotic parameters
such as the Kolmogorov entropy. It was found that the Kolmogorov entropy could be utilized effectively to explain the nonlinear
dynamic behavior of gas-solid flow in the annular fluidized bed. The pierced length and rising velocity of bubbles increased
with increasing gas velocity, bed temperature, and particle size of the bed material. The bubble frequency increased with
increasing gas velocity and bed temperature, while it decreased with increasing particle size of the bed material. Correlations
to predict the bubble properties in annular fluidized-bed reactors were suggested. 相似文献
127.
Sung-Deuk Choi 《Environmental pollution (Barking, Essex : 1987)》2009,157(12):3199-3206
Concentrations of polycyclic aromatic hydrocarbons (PAHs) were measured in soil and XAD-based passive air samples taken from a total of 22 sites along three transects (Revelstoke, Yoho, and Observation, 6-8 sites for each transect) in the mountains of Western Canada in 2003-2004. Median concentrations in air (4-ring PAHs: 33 pg/m3) were very low and comparable to those in global background regions such as the Arctic. Low median soil concentrations (16 EPA PAHs: 16 ng/g dry weight) and compositional profiles dominated by naphthalene and phenanthrene are similar to those of tropical soils, indicative of remote regions influenced mostly by PAHs from traffic and small settlements. Comparing levels and composition of PAHs in soils between and along transects indeed suggests a clear relationship with proximity to local sources. Sampling sites that are closer to major traffic arteries and local settlements have higher soil concentrations and a higher relative abundance of heavier PAHs than truly remote sites at higher elevations. This remains the case when the variability in soil organic carbon content between sites is taken into account. Both air/soil concentration ratios and fugacity fractions suggest atmospheric net deposition of four-ring PAHs to soils. 相似文献
128.
The critical paths for radionuclides and the critical foods in Asian countries differ from those in Western countries because agricultural products and diets are different. Consequently, safety assessments for Asian countries must consider rice as a critical food. As most rice is produced under flooded conditions, the uptake of radionuclides by rice is affected by soil conditions. In this report, we summarize radionuclide and stable element soil-to-plant transfer factors (TFs) for rice. Field observation results for fallout 137Cs and stable Cs TFs indicated that while fallout 137Cs had higher TF than stable Cs over several decades, the GM (geometric mean) values were similar with the GM of TF value for 137Cs being 3.6 × 10−3 and that for stable Cs being 2.5 × 10−3. Although there are some limitations to the use of TF for stable elements under some circumstances, these values can be used to evaluate long-term transfer of long-lived radionuclides in the environment. The compiled data showed that TF values were higher in brown rice than in white rice because distribution patterns for elements were different in the bran and white parts of rice grains. 相似文献
129.
Waste incineration in a small incinerator is a simple and convenient way of treating waste discharged from small areas or from large facilities and buildings such as business centers, marketplaces, factories, and military units. Despite their ostensible advantages, however, many small incinerators frequently suffer from serious problems, e.g., unsystematic waste feeding, unstable combustion, deficient air pollution control devices, and consequently, environmental pollution. To obtain a better understanding of the characterization of wastes in small incinerators, we investigated a series of fundamental characteristics, i.e., physical composition, bulk density, proximate and ultimate analysis, potential energy content, and so on. The main waste components in small incinerators were identified as paper and plastic; the proportion of food waste was less than that in large incinerators. Especially, a low ratio of food waste had a strong influence on other waste characteristics, e.g., lower moisture content and bulk density, and higher potential energy. On the other hand, in contrast with that of HCl, there was no distinguishable linear relationship between Cl content in waste and PCDD/DF concentration in combustion gas. 相似文献
130.
Spatio-temporal variations of biochemical oxygen demand (BOD) and total coliform (TC) in the Han River, Korea, were investigated
in terms of concentration-based and mass loading-based approaches. Considering the river water quality criteria regulated
by the Ministry of Environment in Korea, the tributaries linked to the mainstream of the Han River were found to be highly
contaminated with respect to both BOD and TC and, in fact, most of the tributaries exceeded the maximum water quality criteria.
To evaluate the pollution impact of tributaries on the mainstream, the monthly water quality monitoring data for six years
(from 1995 to 2000) were collected from the Han River basin, and statistically analyzed using Pearson’s correlation coefficient.
The results revealed that mass loading-based approach was superior to the concentration-based approach for effective Han River
watershed management. Overall results supported that the mass loading-based approach associated with total maximum daily loads
(TMDL) management would be a useful and suitable protocol in watershed management for improving the water quality of the Han
River and protecting public health. Therefore, this study supporting TMDL management can be applicable to a wide array of
contaminants and watershed settings in Korea. 相似文献