组织政治氛围对员工离职倾向的影响:有调节的中介模型

组织政治氛围是员工离职倾向的重要前因变量,但现有文献还未对这种关系及作用机制进行系统研究。基于资源保存理论,引入员工沉默作为中介变量,以政治技能作为调节变量,构建被调节的中介模型,探讨组织政治氛围对员工离职倾向的影响机制。通过线性回归、Bootstrap等方法对328份样本进行实证分析,结果表明:组织政治氛围正向影响员工离职倾向,员工沉默在该过程中起部分中介作用;政治技能负向调节组织政治氛围与员工沉默之间的关系,政治技能负向调节了员工沉默在组织政治氛围与离职倾向之间的中介效应。     

龙丽高速公路(K92+945-K93+105)石方路基控爆施工

文章详细介绍了浙江龙丽高速公路K92+945-K93+105段高陡石方路堑在保证其下方的省道通行安全及交通畅通的情况下所采取的安全防护、控制爆破及施工组织措施。     

先进文化的系统论视角与文化产业化投资

"代表中国先进文化的前进方向"在"三个代表"这个大系统中的地位就是通过形成一种人文关怀的氛围和制度保障,在根本上体现了先进生产力的发展要求,代表最广大人民的根本利益."代表中国先进文化的前进方向"作为"三个代表"这个大系统中的子系统要发挥更大的作用,就要走市场化道路,克服投融资障碍,实现文化的产业化.     

Good News and Bad News: Search from Unknown Wage Offer Distributions

The largest market in national economies is the labor market. Labor market contracting is characterized by job search, often from unknown wage offer distributions. This paper reports experimental tests of finite horizon models of job search in which the wage offer distribution is unknown. Theoretically-optimal search from an unknown wage offer distribution can have the seemingly paradoxical property that some offers will be accepted that are lower than other offers that will be rejected in the same period of the search horizon. Thus the reservation wage property (or lowest acceptable wage path) may not exist. This can occur because an offer that is a priori relatively high (good news) can imply that it is highly probable that search is from a favorable distribution, and such an offer can look unattractive when it is an a posteriori relatively low offer from a favorable distribution (bad news). This paper reports results from experimental treatments for search from unknown distributions in which the reservation wage property does exist and treatments in which it does not exist. We find that the consistency of search behavior with search theory reported in earlier papers is robust to the presence or absence of the reservation wage property and to whether the draws come from known or unknown distributions.     

Implications of land use transitions on soil nitrogen in dynamic landscapes in Tanzania

Land use transitions are rated among the leading sources of greenhouse gas emissions in the tropics. They significantly challenge the functioning of ecosystems and affect multi-temporal stability of greenhouse gases such as N₂O and soil properties. Studies on dynamics in nitrogen balances are essential in understanding greenhouse gas emissions such as N₂O and to manage their impacts on productivity. In this study, multi-temporal Landsat images (1975, 1995 and 2012) were classified to determine land use transitions and potential drivers. The classified images were categorized into degraded and non-degraded lands and eighty sampling plots generated within the entire study area. Soil samples were then collected at 0–15, 15–30 and 30–60 cm depths on each plot and soil nitrogen determined. A regression analysis was developed to determine the influence of forest and grassland degradation on soil nitrogen. Results indicated a significant change in major land use and land cover types. Specifically, there was a decrease in areas covered by forests, woodland and grassland, however, area covered by less dense forest increased. Results also indicated variability in mean nitrogen content between degraded and non-degraded areas and depths. Furthermore, levels of degradation influence nitrogen content up to a soil depth of 30 cm. The present study is relevant in the detailed assessment of the extent of damage and threats posed to biodiversity hotspots in sub-Saharan Africa. These results are transferable to other parts of the world characterized by dynamic ecological transformation.     

Self-determination and risk: the role of life goals and causality orientation in domain-specific risk propensity

A growing body of risk research shows that risk is content specific. Accordingly, various studies have highlighted some factors that could explain why people’s risk propensity may arise in certain domains of risk (e.g. the financial domain) but not in other domains (e.g. the recreational domain). Until now, no research has examined motivation as a possible correlate of domain-specific risk propensity. On the basis of self-determination theory (SDT), we examined the role of both extrinsic life goals (i.e. superficial goal striving, including fame, money, and physical attraction) and control-orientated personality style (i.e. feeling that one’s behaviors are governed by external contingencies) in the propensity to take risks in various domains (social, ethical, recreational, financial, and health/safety). A community sample of 197 participants completed measures scaled to assess extrinsic life goals, controlled orientation, and domain-specific propensity (DOSPERT). The results showed that pursuing extrinsic goals and being control oriented increased the propensity to take ethical, recreational, financial, and health/safety risks but decreased the propensity to take social risks. In addition, to corroborate that risk propensity is domain specific, these results indicate that superficial life aspiration and sensitivity to social pressures are highly predictive of instrumental risks (e.g. ethical and financial), moderately predictive of health risks, and negatively predictive of ego-threatening risks (e.g. social risk). The results are discussed in light of the domain-specific risk literature and in the perspective of interventions based on SDT.     

Don't ignore the floor: Exploring multisensory atmospheric congruence between music and flooring in a retail environment

In retail environments, consumers commonly evaluate products while standing on some type of flooring and concurrently being exposed to music; however, no study has examined the interaction of these two atmospheric cues. To bridge this gap, this research examines whether retailers can benefit from creating multisensory atmospheric congruent rather than incongruent retail environments of flooring and music. The results of an experiment in a real retail store reveal positive effects of multisensory congruent retail environments (e.g., soft music combined with soft flooring) on product evaluations. This study provides a new process explanation with consumers’ purchase‐related self‐confidence mediating these effects. Specifically, consumers in congruent rather than incongruent retail environments experience more purchase‐related self‐confidence, which in turn leads to more favorable product evaluations. Furthermore, this study shows that consumers with a low rather than a high preference for haptic information are influenced more by multisensory atmospheric congruence when evaluating a product haptically.     

数控机床技术消化吸收限制因子分析研究

目前在我国数控机床引进技术消化吸收方面存在不足,主要限制因子有资金限制因子、人员限制因子、实施限制因子等。这些限制因子可分为主观和客观两类。     

高等院校足球文化氛围的研究

我国足球水平总上不去，与足球文化氛围不太好有着紧密关系。足球文化氛围先要搞好了，参加足球活动的人增加，踢足球的人多，人才辈出，成绩提高也就水到渠成。校园足球文化应该像金字塔一样，重点在基层。自下而上，形成各班、年级、系部、学校等层面。可以开展小规模的友谊赛，也可以开展中等规模及体协牵头的各种类型的比赛，最高层则是学校的足球联赛。同时领导重视，各职能部门大力支持，体育教学部全力以赴，学生会积极协助，共同努力，才能使校园足球文化蓬勃发展。高校的学生既是运动员的摇篮又是社会的未来精英，高校足球文化氛围的提高，将会对我国足球水平的提高有很大的推进作用。     

基于AD5545的可编程宽带直流信号放大器

设计了一种增益可手动数字设置或程控设置且无调节电位器的宽带直流放大器。该放大器主要以单片机MSP430和继电器组作为电路的主要控制部分,由使用D/A转换器AD5545控制的放大电路、前级信号调理电路、后级功率放大电路和滤波器组成,实现了增益连续可调的功能。该放大器在0～60dB范围内连续可调,输出信号无明显失真,在0～5MHz范围内信号可放大60dB,最大输出电压为8V。