Does the tender,auction and listing system in land promote higher housing prices in China?

Using monthly data on national housing prices from July 1998 to June 2015, we investigate the effect of the ‘Tender, Auction and Listing’ (hereafter TAL) system on housing prices in land, implemented on 31 August 2004. We apply the additional polynomial regression discontinuity method which effectively eliminates the effects of several confounding factors such as financial crisis, ‘New National Ten Provisions’ and ‘9.30 New Regime’. We find that, although the TAL has caused the national average housing prices to go up by 10%, accounting for 11% of total increase in housing prices in the last year, it does not constitute the major driver for housing prices. Furthermore, our results indicate that TAL has exerted a larger impact on commercial and residential properties, especially in the middle and west regions. By examining the transmission mechanisms, we find that the effects of TAL are mainly via government’s starvation-style land supply effect and market-reshuffling effect.     

陶粒轻骨料与普通混凝土的黏结剪切性能EI北大核心CSCD

设计制作了双面直剪型陶粒轻骨料混凝土与普通混凝土叠合浇筑试块并进行剪切破坏试验,发现各组试块的最终剪切破坏面层不同程度地由两侧混凝土及初始浇筑面层共同组成.为此,给出了具有内部分层式速度间断面的剪切破坏机构模型,并选用Mises屈服条件及Coulomb剪破条件,根据塑性极限分析原理建立了2种混凝土黏结层剪切破坏强度的解析解.结果表明:陶粒轻骨料混凝土与普通混凝土叠合浇筑时,考虑浇筑结合面处理方式、浇筑间隔时间及法向力影响的最终剪切破坏遵循Mohr-Coulomb强度准则.     

山东聊城某酒店的超限结构设计

聊城某酒店C区为多项不规则的超限复杂高层建筑,采用框架结构体系。针对结构多项超限问题,结合抗震性能化设计目标,通过不同程序对结构进行小震弹性分析、中震弹性和不屈服计算,以及大震弹塑性分析。根据分析结果,采取了相应抗震加强措施,使结构满足抗震性能目标,并顺利通过抗震设防专项审查。本文的有关方法和结论可为工程提供参考。     

第二次土地调查省级预检关键因素探析——查找疑问图斑

第二次全国土地调查工作已经接近尾声,对土地调查成果进行逐级检查验收,是确保数据真实、准确的有效途径。笔者全程参与了湖南省土地调查的省级预检工作,分析了疑问图斑的影像特征、主要类型及分布特点,总结了查找疑问图斑的体会,认为查找疑问图斑是提高调查成果质量的关键。     

PML吸收边界条件在波导不连续性问题中的应用

采用矢量有限元方法结合PML吸收边界条件分析波导不连续性问题。利用PML吸收边界条件截断计算区域,可以减少内存消耗;采用模式正交性计算波导结构的S参数,可以获得更加精确的解。在结果验证阶段,分别对PML参数设置、厚度选择、波导介质不连续性以及波导结构不连续性模型进行分析,将计算结果与文献对比,验证了PML吸收边界条件的有限元法分析波导不连续性问题的准确性。     

The "never-to-be-forgotten investigation": Luella W. Cole, Sidney L. Pressey, and mental surveying in Indiana, 1917–1921.

The case of Cole and Pressey's mental survey of southern counties in Indiana provides a microhistorical view of intelligence testing and its popularization. Providing fresh insight into the nature and commerce of mental surveying outside of the Army's notorious program during World War I, this case is an example of larger phenomena at that time. Intent on popularizing their products, Cole and Pressey attended to the minutiae of the consumption and production of their psychological apparatus in their attempts to create and satisfy market conditions. Here, markets would dictate the success of their scales, and in turn mediate their psychology. I argue that the popularization of intelligence testing had as much to do with the mundane market practices of psychologists as with the intellectual practices of Army elites. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Learning from Construction Failures due to the 2009 L’Aquila, Italy, Earthquake

An earthquake sequence struck the province of L’Aquila (central Italy) leaving 305 dead, about 1,500 injured, and 29,000 homeless. Hundreds of low-intensity events occurred between January and March, 2009. The mainshock took place on April 6, 2009, and its epicenter was located at about 6 km southwest of L’Aquila town; three stronger aftershocks happened on April 7 and 9, 2009. This paper focuses on actual performance of older and more recently constructed building structures during the earthquake sequence. After the main seismological characteristics of the sequence are described, the most significant observed damages are analyzed and associated with theoretical failure modes for both reinforced concrete and unreinforced masonry buildings. Since older masonry structures were more seriously damaged, the effects of the earthquake are described with more emphasis to ordinary masonry and cultural heritage buildings (churches, palaces, and castles). In conclusion, a number of lessons may be learned from the L’Aquila earthquake sequence. Several features are highlighted and some proposals are given to upgrade the current methods of structural analysis, as well as the existing codes.     

How may nonresponse affect findings in organizational surveys? The tendency-to-the-positive effect.

Building on previous findings that those who hold negative attitudes toward the organization have a relatively low likelihood to participate in organizational surveys, the authors examined the impact of nonresponse on the findings of organizational surveys. An artificial example showed that if the likelihood to respond depends on one's standing on response-related variables, the scores on these latter variables will differ from those for the population, whereas between-organization differences in these variables will be underestimated. Consistent with earlier findings, our survey among employees of 96 Dutch home care organizations revealed that employees of high-response organizations reported more positive attitudes toward their work and organization than others. This underlines the importance of obtaining high response rates in organizational studies. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sociogenèse et psychobiologie: Les sources de la continuité et de la discontinuité du développement.

The aim of this article is to reflect conceptually upon the various stakes in development from both psychobiological and sociogenetical perspectives, two prominent contemporary theories of social sciences. Where does developmental continuity belong?...Does it belong within the individual or within his or her environment? Despite explicitly recognizing the influence of social experience in human development, the traditionally old nature-nurture debate remains at the center of theoretical analyses and leads to a futile integration of the two positions. The authors propose a theoretical model, which suggests not to integrate these two antagonistic positions but rather to recognize and utilize their interdependency as a means of viewing continuity and discontinuity as complementary facets of development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)