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1.
本文从诗学沿革、文体流变、创作 心理和接受美学等视点审视了我国古典诗歌叙述口吻模糊性的特 征这一命题,认为口吻互渗、口吻互叠、口吻的转移与替代等因素使诗歌表述具有不确定性 和多向性,这是促成中国诗歌独特美学品格和艺术个性的一个原因。  相似文献   
2.
提出了一种新颖的基于双恒流源法六端比例测量原理的应变测量技术,介绍了其测量原理及误差分析和校准技术,实现了高精度应变测量。给出了利用该测量原理设计的多通道应变仪测试结果。实验室测试及在某大型离心载荷试验中运行表明,该应变仪具有较高的测量精度、稳定性、抗干扰性和可靠性,其设计原理和方法对于工程设计与应用具有一定的参考价值。  相似文献   
3.
Sleep problems are common and impair the health and productivity of employees. Work characteristics constitute one possible cause of sleep problems, and sleeping poorly might influence wellbeing and performance at work. This study examines the reciprocal associations between sleep problems and psychosocial work characteristics. The participants were 1744 full-time employed individuals (56% women; mean age 38 years in 2007) from the Young Finns study who responded to questionnaires on work characteristics (conceptualised by the demand–control model and effort–reward imbalance model) and sleep problems (Jenkins Sleep Scale) in 2007 and 2012. Cross-lagged structural equation models are used to examine the associations. The results show that low control and low rewards at baseline predicted sleep problems. Baseline sleep problems predicted higher effort, higher effort–reward imbalance, and lower reward. Sleep problems also predicted lower odds for belonging to the low (rather than high) job strain group and active jobs group. The association between work characteristics and sleep problems appears to be reciprocal, with a stressful work environment increasing sleep problems, and sleep problems influencing future work characteristics. The results emphasise the importance of interventions aimed at both enhancing sleep quality and reducing psychosocial risks at work.  相似文献   
4.
Families across the income spectrum experienced subjective feelings of economic strain during the Great Recession. Existing evidence suggests that much of that economic strain did not arise from individual‐specific economic shocks, such as unemployment or income loss, as much as it did from worry and uncertainty about the future. The authors tested a model in which a measure of subjective perceptions of economic strain was the key predictor of children's behavior problems and objective indicators of economic experiences were treated as control variables. To do so, they used new data from a population‐based sample of children ages 4–17 (N = 303) living in southeast Michigan during the period 2009–2012. They found that economic strain exhibited a qualitatively large independent association with internalizing behavior problems for White—but not Black—children. This association was statistically significant over and above objective indicators of economic experiences and the family psychosocial context.  相似文献   
5.
Abstract

A model integrating prevailing perspectives on children's functioning following divorce was used to predict children's behavior problems. The data were collected from 30 custodial mothers, 30 custodial fathers, and 30 married parents with children 6 to 10 years of age, using face-to-face interviews and standardized questionnaires. Results using path analysis indicated that marital status and parental control had significant direct effects on children's behavior problems. Sex of parent, economic strain, co-parental conflict, coping with roles, and parenting indirectly influenced children's behavior through parental control. The findings suggest that the pressures inherent in raising a child alone, combined with too few resources for coping with role demands, are disruptive to both parenting and parental control, and that children in single-parent families appear to respond to these deficits with disruptive behaviors. Implications for family practice and policy are discussed.  相似文献   
6.
从内蒙古自治区巴盟炭窑口硫铁矿矿井水中分离到氧化亚铁硫杆菌(Thiobacillusfer-rooxidans)C-1 ̄#菌株。确定了该萌株生长最适pH为1.8-2.0,测定了该苗株的生长曲线,并用电镜观察其形态。  相似文献   
7.
介绍了中,美两国现行规范中受压区混凝土应力应变曲线,并以此为基础,研究了两种不同曲线的异同点,展开了与此相关的讨论。  相似文献   
8.
Job stress can lead to various system dysfunctions, but until now no reliable biomarkers for its assessment have been identified. Allostatic load (AL) is an index that enables the cumulative effect on the body of chronic stress to be assessed, and is derived from a set of relevant biological measures. In this study, a 13-parameter index (building on the original 10-item index) was used to examine the relationship between job strain and AL. Participants were 1219 healthy Chinese employees. Job strain was measured using the Job Content Questionnaire, and AL was assessed by various possible stress responses, including blood pressure, cholesterol, indicators of glucose metabolism, and hormone and inflammation markers. AL in the high job strain group differed sharply from that in the low job strain group. The AL score was positively associated with age and educational level. Several individual parameters also differed between the two groups. Men scored significantly higher on AL and cardiovascular and metabolic health outcomes, whereas for women the associations appeared in the biological indicators. Analyses indicated that decision latitude (DL) and job demands were significantly related to AL. Job demands correlated significantly with the primary biological indicators and DL with the secondary health outcomes. In conclusion, this study provides evidence of the value of measuring allostatic load in assessing the chronic effects of job stress.  相似文献   
9.
一种高碳低合金钢的热塑剪切带的实验   总被引:1,自引:0,他引:1  
采用高速锤加载方式,研究了一种高碳低合金钢处于非剪切变形加载条件下的热塑剪切带的形成发展规律,试验结果表明:在目前的加载速率下,形成的剪切带是一种变形带,而不是相变带,带的形成与材料内部的二相粒子的尺度大小没有太大的关联。  相似文献   
10.
Using a sample consisting of 4,997 married couples from the National Survey of Families and Households, individual emotional distress, the occurrence of couple disagreements, couple fighting, and couple quality time together mediated the relationship between financial strain and personal assessments of marital instability. The overall results suggest that financial strain influences both positive and negative forms of couple interaction which are stronger mediators than personal emotional distress of the relationship between financial strain and marital instability. The results further suggest that there were no gender differences among these linkages.  相似文献   
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