浅谈篮球运动中的假动作技术训练中的注意事项

篮球运动是一项对抗性很强的运动,这项运动不仅强调身体技术的较量,更强调智与谋的较量,适时而恰当采用各种假动作可以迷惑对方,调动对方从而获得比赛的主动权。本文旨在介绍假动作在篮球运动中的作用以及假动作训练中注意的事项。     

基于SD与眼动分析的张谷英村文化景观 体验评价研究

以张谷英村文化景观为研究对象,采用SD法并结 合眼动分析法对张谷英村文化景观进行体验评价与综合统计分 析。研究结果表明,张谷英村文化景观的整体体验评价处于中 等水平。眼动数据分析、注视热点分析、SD因子分析突出表明 张谷英村中园林绿化景观建设效果表现不佳,以及乡村绿地区 与田园农业区是后期建设需关注的重点。综合评价结果为后续 张谷英村文化景观的保护更新与发展传承提供了科学建议,也 为乡村文化景观的综合评价提供了新视角。     

Intergenerational Earnings and Income Mobility in Spain

This paper contributes to the large number of studies on intergenerational earnings and income mobility by providing new evidence for Spain. Since there are no Spanish surveys covering long‐term information on both children and their fathers' income or earnings, we deal with this selection problem using the two‐sample two‐stage least squares estimator. We find that intergenerational mobility in Spain is similar to that in France, lower than in the Nordic countries and Britain, and higher than in Italy and the United States. Furthermore, we use the Chadwick and Solon approach to explore intergenerational mobility in the case of daughters and we find similar results by gender.     

Parameter estimation for the drift of a time inhomogeneous jump diffusion process

This work deals with parameter estimation for the drift of jump diffusion processes which are driven by a Lévy process and whose drift term is linear in the parameter. In contrast to the commonly used maximum likelihood estimator, our proposed estimator has the practical advantage that its calculation does not require the evaluation of the continuous part of the sample path. In the important case of an Ornstein‐Uhlenbeck‐type jump diffusion, which is a widely used model, we prove consistency and asymptotic normality.     

Influence of Advertising on Brand Personality in The Airline Sector: The Case of Spain

This article outlines the findings of a study employing a partial least squares (PLS) structural equation methodology to explore the relationship among advertising and brand personality (BP) dimension of a validated Aaker's model (1997) in the airline business. BP refers to the emotional side of brand image. It is created by all experiences of consumers with a brand. The model was validated using confirmatory factor analysis and the effect of advertising on BP has been tested using PLS. The findings suggest that advertising influences the formation of BP only in the sophistication dimension. These results invite managers in the airline companies sector to develop communication strategies to create a distinguishing and attractive BP that will help them connect with their consumers.     

Mature and Emerging Organic Markets: Modelling Consumer Attitude and Behaviour With Partial Least Square Approach

Although the organic food sector has been researched for around 20 years, still little is known about consumer behaviour when comparing developed and emerging organic markets. Therefore, the aim of this study is to investigate the determinants of organic food consumption in a mature (Germany) and an emerging (Chile) organic market using a model based on the theory of planned behaviour and partial least squares for parameters estimation. The reported results have implications for decision makers in both countries. The use of altruistic arguments in organic food marketing is a key aspect to increase organic food demand in both countries. However, egoistic motives might also gain importance in Chile, as they already have in Germany. In both countries, the barriers for organic food consumption have to be addressed with great attention—a lack of information and availability, especially in Chile, and scepticism about organic food in Germany.     

直接序列扩频通信系统中PN码相位的精确测量方法

本文提出了一种精确测量本地PN码和输入PN码相位差的方法,这种方法结合了数值分析算法和数字信号处理技术,通过对鉴相单元输出值的处理得到很高的测量精度,并且由于这种方法为全数字方法,可以用FPGA、DSP等处理芯片方便地实现。文中给出了计算机仿真的结果,并根据仿真结果分析了此方法的准确度和抗噪声性能。这种方法在伪码测距、高精度伪码捕获跟踪、差分定位等领域中有很大的应用价值。     

Structural Changes in Expected Stock Returns Relationships: Evidence from ASE

Abstract:  This paper suggests a recursive application of Fama and MacBeth's (1973) testing procedure to assess the significance of macroeconomic factors and firm-specific effects priced in explaining the cross-sectional variation of expected stock returns over time. The paper applies the suggested testing procedure to investigate the source of risks of the Athens Stock Exchange (ASE). Among the variables examined, it finds out that the changes in the short term interest rates and firm size can explain a significant proportion of the variation of the ASE individual returns. The paper argues that the significance of interest rate changes can be associated with monetary policy changes introduced by the Greek authorities after the mid-nineties. These changes were focused on targeting interest rates, instead of monetary aggregates.     

平方和恒等式的一个直接的组合证明

文章首先采用数学归纳法给出了前n项平方和封闭形式的组合解释,从而给出了平方和恒等式的一个直接的组合证明,解决了Benjamin和Orrison[1]在2002年提出的问题.     

Re-examining 50-year-old OLS estimates of the Klein–Goldberger model

This paper examines the ordinary least squares estimates of the Klein–Goldberger model by Fox ( Journal of Political Economy , 64 , 1956, 128). Because Klein and Goldberger published the data set with the model, it is possible to re-examine Fox's results years later, and investigate the accuracy with which these estimates were calculated. The examination reported in this paper was conducted by making independent estimates using three different modern econometric software packages. This examination reveals that the Fox estimates for a number of the equations of this model are replicable, to the two or three digits reported by Fox. Fox's results for other equations cannot be replicated. Not all the reasons for this lack of replicability can be determined, but in several cases the computational methods used by Fox and his assistants have been found to be faulty by modern computational standards.