高科技企业人才流失预警机制研究

以风险信息采集—风险预警指标库构建—风险评估—预警警报发布为逻辑思路阐述高科技企业人才流失风险预警模式。根据对人才流失风险的识别,从个体、组织、环境3个方面构建高科技企业人才流失风险预警指标体系,并利用层次分析法和熵权法对风险指标进行评估。最后,根据BP神经网络原理确定高科技企业人才流失风险预警模型,设计预警模型的构建步骤,进一步对风险等级及临界值进行设计和界定。     

基于最优权值探测的图像可逆信息隐藏研究

提出一种基于最优权值探测的图像可逆信息隐藏算法。该算法改进了现有的预测方法,利用最优权值探测原理提高预测像素值的精确受,使预测误差差值直方图更加紧凑、峰值更高。实验结果表明,相比其它可逆嵌入算法．该算法在保证图像质量的同时,提高了嵌入容量。算法整体性能高。     

Teaching Prospect Theory with the Deal or No Deal Game Show

Recent evidence indicates that decision makers are more sensitive to potential losses than gains. Loss aversion psychology has led behavioural economists to look beyond expected utility by developing prospect theory. We demonstrate this theory using the Deal or No Deal game show.     

Emotion Work Revealed by Job Loss Discourse: Backgrounding-Foregrounding of Feelings, Construction of Normalcy, and (Re)instituting of Traditional Masculinities

Three emotion work themes were displayed in the discourse of individuals who lost their jobs and of their family members. Foregrounding-backgrounding of emotions indicated not only how some individuals and family members exerted effort to express positive emotions, but also why they would do so (for deep authenticity). In the construction of normalcy, respondents made an effort to portray and enact their lives as similar to the way things were before the job loss. By (re)instituting traditional masculinities, the men who lost their jobs were able to be "real" men in an emasculating situation. Taken together, these findings offer possibilities for further theoretical development and for communication interventions that can be applied by human resource professionals, career and outplacement counselors, family members, friends, and the individuals themselves.     

福州市肥胖青少年减肥的调查研究

采用问卷法、访谈法、文献资料法、数理统计法等对福州市肥胖青少年的减肥行为及其相关因素进行了调查分析,主要结论:肥胖青少年对肥胖的认知极其有限和片面:综合运用多种方法进行减肥在肥胖青少年中具有普遍性;运动在控制体重和减肥中的重要作用得到了青少年的重视;肥胖青少年减肥效果较差;不良减肥行为的发生比例较高。建立加强肥胖与控制体重知识教育,宣传科学的减肥方式,预防和控制不良减肥行为的发生,旨在指导福州市肥胖青少年进行科学减肥,并为有关部门决策提供科学依据。     

基于复杂网络的笔记本电脑销售网络统计特征分析

从复杂网络的角度对淘宝网上的笔记本电脑销售网络进行了实证研究。采用二分图及其投影的方法定义了一个笔记本销售网,得到了顶点度分布、项目度分布、项目大小分布、集群系数分布、同类性、竞争权重分布等统计性质;并对这些性质进行了分析,发现该网络的若干重要统计量都很好地遵循指数分布。结论表明,这种复杂网络的描述有助于发现和理解销售系统的一些重要特性。     

肝功能对意识消失时咪达唑仑血浆浓度和脑电双频谱指数的影响(英文)

研究目的:探索不同肝功能指数对镇静药咪达唑仑的敏感性以及脑电双频谱指数(BIS)的预测意识消失的影响。创新要点:明确不同肝功能状态的患者对中枢抑制药的敏感性以及BIS预测意识消失概率发生的敏感性。指导临床医生根据患者的肝功能状态合理使用中枢抑制药以及正确利用BIS预测镇定深度。研究方法:选择意识消失作为研究终点,以50%患者意识消失时的咪唑安定的浓度以及BIS值作为观察指标。重要结论:终末期肝病患者对中枢镇静药咪唑安定更敏感,该类患者在BIS预测意识消失概率发生的敏感性存在差异。     

《沧浪之水》中池大为丢失话语权之剖析

20世纪90年代，在市场经济对传统文人操守冲击等因素的影响下，有些知识分子丢失了象征着自己身份的话语权。文章以知识分子池大为为个案，剖析了他丢失话语权的原因，进而表达了对知识分子话语权重构的期待。     

基于模糊综合评价的大学教师绩效考核研究

本文把模糊综合评价方法应用到大学教师绩效考核研究中,结合教师的实际情况将综合能力根据需要分成若干个指标,建立了因子集、评价集、隶属函数和权重集,实现对教师绩效考核的综合评估．采用层次分析法计算评价的权重集,并对取大取小算法和评价结果的最大隶属度原则进行了改进,取得了较好的效果．     

Measuring children’s perceived cost of school science: Instrument development and psychometric evaluation

This investigation addresses the need for valid and reliable instruments that contribute to understanding the factors that lead to the rejection of science-related studies. We discuss the theoretical and methodological limitations of published attitudes toward science questionnaires and describe the development and validation of a short instrument rooted in the cost construct of the expectancy-value model of achievement motivation. We collected data from a sample of six hundred thirty-two 5^th and 6^th (M_age = 10.87; SD = .76) elementary students in Spain. Exploratory and confirmatory factor analysis revealed a parsimonious structure measuring loss of valued alternatives and task effort ​cost. Further psychometric evaluation displayed evidence for convergent, discriminant, and concurrent validity. Likewise, the reliability was acceptable for both three-item scales. These findings support the proposed instrument to measure barriers experienced by Spanish children when studying school science.