New technology and old institutions: An empirical analysis of the skill-biased demand for older workers in Europe

Using panel data from nine European countries over the period 1970 to 2007, we examine the impact of information and communication technology (ICT) on the demand for older workers (aged 50 and over). We find evidence of a decrease in demand for older workers in the 1970s and 1980s. It can be argued that the impact of ICT on demand for older workers is skill-biased. However, the skill-biased demand for older workers is mainly reflected in the skill-biased changes in employment shares rather than relative wages. There is some evidence of a gradual deskilling of older workers. We find that labour market institutions such as the national minimum wage, social pacts on wage issues and union density mostly benefit skilled older workers, while coordination of wage setting, extension of collective agreements, social pacts on pensions and centralisation of wage bargaining can alleviate the adverse effects of skill-biased technological change.     

一种改进的CPFSK信号频率估计方法

针对突发信号解调中多普勒频偏大的问题，提出了一种改进的连续相位移频键控信号(CPFSK)频率估计方法。首先接收信号平方运算使信号的调制指数加倍，再通过一次离散傅里叶变换(DFT)，用搜索信号平方谱谱峰的方法实现突发信号频率估计。仿真实验表明，在低信噪比条件下，该算法的频率估计精度比经典的相位差频率估计算法提高了20%；该算法与广泛用于高动态突发信号的频率插值估计算法相比，同道干扰信道下信干比改善可达4 dB，DFT长度缩短约1/3。     

Investigating the effects of job demands and job resources on cabin crew safety behaviors

Cabin crews are crucial to the cabin safety performance of airlines, and may enhance air travel safety and alleviate passenger concerns. Within the limited literature devoted to cabin crew related research, this study aims to examine the causal relationships among “job demands”, “job resources” and cabin crew safety behaviors. Data from a survey of 339 flight attendants working for Taiwanese international airlines were analyzed using structural equation modeling. A variety of fit indices confirmed the overall model fit, and all the paths in the model were statistically significant. Framed in the context of the job demands-resources model, the results reveal negative causality between “job demands” and “cabin crew safety behaviors”, whereas “job resources” are positively related to “upward safety communication”, “in-role” and “extra-role” safety behaviors. The implications of the results for practitioners and future research are discussed.     

非语言交际对利玛窦在华传教的影响

明末清初时期,利玛窦与中国士大夫的交往是其在华传教活动的重要组成部分,其中非语言因素在其成功交际中起着重要的作用。利玛窦利用服饰的变化表明自己的身份和立场,借用西洋器物传播西方先进的科技文明,通过著书立说的形式广结权贵,施展个人魅力笼络人心。利玛窦与中国士大夫阶层的紧密互动为其在中国传教奠定了基础并开创了新的格局。     

Discourse and practice of participatory flood risk management in Belfast,UK

The introduction of the Floods Directive signals a move from flood protection towards flood risk management in the European Union. Public participation is highlighted in the Floods Directive as being instrumental to effective implementation of this new approach. This study utilised document analysis, non-participant observation, a questionnaire survey, and interviews to evaluate the discourse and practice of participation in the implementation of the Floods Directive in Belfast, United Kingdom. Flood risk management processes in Belfast are found to be high on participatory rhetoric but low on meaningful engagement. The participatory process is lacking in transparency, does not encourage the active participation of interested parties and has not been clearly communicated to key publics. Opportunities to increase meaningful public participation in the process remain underutilised, and the establishment of local flood forums has provided little opportunity for meaningful engagement. Some actions of governance agencies could be best characterised as facilitating the responsibilisation of risk and are designed to manage risk to agencies rather than address flooding issues.     

积极推动辽宁与台湾地区本科教育交流与合作

近年来,随着中外以及海峡两岸教育交流合作的加强,中国本科教育国际化进程飞速发展。辽宁作为中国北方的经济和教育大省应顺应这个国际化潮流,加强与台湾高校的教育交流合作。通过介绍辽宁与台湾本科教育交流合作的背景和现状,阐述了辽宁与台湾本科教育合作与发展中存在的问题,并提出了相应的对策和建议,以期促进辽宁与台湾本科教育交流与合作向更加广度和深度发展     

Ka频段双模航空客舱宽带卫星通信系统总体设计

针对民航市场对客舱宽带卫星通信的迫切需求，提出了一种基于Ka频段高通量卫星的双模解决方案。研究了系统设计的诸多方面，包括卫星资源选择、网络结构、技术体制和适航性。详细介绍了机载设备的组成和双模工作原理，分析了几个与设计实现密切相关的技术指标。方案设计和技术指标分析结果对实际工程应用有一定的参考价值。     

浅谈在国际传播中的议程设置

International Communication plays an important role in our society. Agenda setting theory emerges from communications studies and focuses on mass media influence on setting political agenda.The theory explains the correlation between the rate at which media cover a story and the extent that people think that this story is important. The media has become a strong barrier of communication between families and the outside world.     

The Effect of Word-of-Mouth Communication on Stock Holdings and Trades: Empirical Evidence From an Emerging Market

The purpose of this study is to investigate the relationship between investors’ satisfaction and intention and word-of-mouth communication. This study contributes to the ongoing debate on the relationship between investor behavior and word-of-mouth communication. Many studies are related to investors’ participation and individual investors’ asset allocation decisions that are instigated by their social community via word-of-mouth communication whereas this study directly investigates the relationship between investment satisfaction and intention and word-of-mouth communication. We emphasize how many factors are considered when making satisfactory investment decisions. Our results confirm the strong relationship between the satisfaction and intention of investors and word-of-mouth communication. This finding may be useful to regulators, investors and managers who seek to establish effective rules for stock holdings and trade.     

COMMUNICATION ABOUT FUTURE POLICY RATES IN THEORY AND PRACTICE: A SURVEY

We discuss the theoretical rationale for central bank communication about future policy rates, either as part of inflation targeting or in the form of forward guidance. We also summarize both actual central bank communication about future policy rates and empirical evidence on the effectiveness of these types of communication. We argue that there is a disconnect between the theory and practice of forward guidance, as theory assumes commitment on the part of the central bank, while in practice central banks generally do not commit. Future theoretical research on forward guidance should therefore take the absence of commitment by central banks into account.