从环境岩土工程问题看广州的城市建设

文章从广州城市建设的实际出发,提出了在城市工程建设中既要努力提高岩土工程技术水平,以适应城市建设的需要,又应注意提高环保意识,在岩土工程活动中充分利用环境岩土工程技术,确保广州城市建设的可持续发展。     

Deposit Insurance,Institutions, and Bank Interest Rates

Many recent institutional reforms of the financial system have relied on the introduction of an explicit scheme of deposit insurance. This instrument aims at two main targets, contributing to systemic stability and protecting depositors. However, it may also affect the interest rate spread in the banking system, which can be viewed as an indicator of either inefficiency or market power in this financial segment. This paper provides an empirical investigation of the effect of deposit insurance and other institutional and economic variables on bank interest rates across countries. We find that deposit insurance increases the lending–deposit spread in banking. The main effect seems to arise not from the deposit side though, but from an increase in the lending rate. We interpret this result as evidence of the presence of moral hazard problems related to this instrument. We also find that higher quality of institutions is associated with lower spreads, thus contributing to eroding sources of market power in the banking sector.     

用声学测量预报等温淬火球墨铸铁强度

等温淬火球墨铸铁的机械性能与其声学性能相关。本文将两种碳当量球铁在８４５，８９９和９４５℃温度进行奥氏体处理，在２６０，３１６和３７１℃温度进行等温淬火得到证实。声学性能测量包括共振频率，声速和内耗。由共振频率转换成动态模量表示出这种关系可以用来预报球墨铸铁不同热处理条件下的机械性能。     

大学城背景下的高校校园文化建设探索

校园文化建设是社会主义文化建设的一个组成部分,也是高校改革和发展过程中提高自身综合实力的一个重要方面。校园文化建设对学校生存发展的凝聚、导向、激励功能应该引起足够的重视。大学城背景下,高校校园文化建设应重点从物质文化、制度文化、科技文化、生活文化、精神文化五个方面着手,解放思想,大胆创新,充分发挥校园文化强大的育人功能,不断促进高校和大学城的健康发展。     

The current state of the labor queue: National and regional Evidence

We employ vector autoregressive techniques to determine the current state of the labor queue. Unemployment rate differentials have narrowed in recent years, potentially due to a change in the queue ordering, though a tight labor market and a stable queue would yield similar results. We find no evidence that the queue ordering has changed, which brings into question the resiliency of gains made by minority groups. We employ the same techniques to reveal the state of the queue across geographic regions and find that substantial differences exist across regions, implying variation in the relative labor force status of demographic groups.     

《中国古代和亲史》评述

人文社会科学高水平的研究成果需要学者长期呕心沥血的钻研和探索。所以,中国学术界历来都推崇“十年磨一剑”的治学方法。崔明德博士倾16年之力所撰写的《中国古代和亲史》(人民出版社2005年6月出版),就是一部学术积淀深厚的民族关系史研究的力作。通读全书,很为书中的原创性内容、会通多学科的理论与研究方法、翔实的史料及精深的辨析所吸引。本文主要就该书的创新方面作一简要评述。第一,开辟了新的研究领域。和亲研究一直是中国民族关系史的重要课题之一,虽然已取得了一批较有影响的研究成果,但还有不少新的研究领域需要开辟,如和亲与丝…     

Bayesian analysis of a marked point process: Application in seismic hazard assessment

Point processes are the stochastic models most suitable for describing physical phenomena that appear at irregularly spaced times, such as the earthquakes. These processes are uniquely characterized by their conditional intensity, that is, by the probability that an event will occur in the infinitesimal interval (t, t+Δt), given the history of the process up tot. The seismic phenomenon displays different behaviours on different time and size scales; in particular, the occurrence of destructive shocks over some centuries in a seismogenic region may be explained by the elastic rebound theory. This theory has inspired the so-called stress release models: their conditional intensity translates the idea that an earthquake produces a sudden decrease in the amount of strain accumulated gradually over time along a fault, and the subsequent event occurs when the stress exceeds the strength of the medium. This study has a double objective: the formulation of these models in the Bayesian framework, and the assignment to each event of a mark, that is its magnitude, modelled through a distribution that depends at timet on the stress level accumulated up to that instant. The resulting parameter space is constrained and dependent on the data, complicating Bayesian computation and analysis. We have resorted to Monte Carlo methods to solve these problems.     

Population constraints on pooled surveys in demographic hazard modeling

In non-experimental research, data on the same population process may be collected simultaneously by more than one instrument. For example, in the present application, two sample surveys and a population birth registration system all collect observations on first births by age and year, while the two surveys additionally collect information on women’s education. To make maximum use of the three data sources, the survey data are pooled and the population data introduced as constraints in a logistic regression equation. Reductions in standard errors about the age and birth-cohort parameters of the regression equation in the order of three-quarters are obtained by introducing the population data as constraints. A halving of the standard errors about the education parameters is achieved by pooling observations from the larger survey dataset with those from the smaller survey. The percentage reduction in the standard errors through imposing population constraints is independent of the total survey sample size.