完全二叉树的实时判别方法

根据二叉树的层次遍历原则,设计了一种在遍历二叉树的过程中实时判别完全二叉树的简便方法.     

Satisfaction With Work and Family Life: No Evidence of a Cultural Reversal

Hochschild (1997) argued that in recent decades the rewards of work have increased relative to those of family life and that this cultural reversal has aggravated the time bind that families face by increasing working hours. To the contrary, pooled data from the 1973–1994 General Social Surveys indicate that in working families, women have shifted away from finding work more satisfying than home toward finding home a haven. Moreover, were it not for women's growing labor force participation and the changing distribution of marital status, the shift would have been even larger. Men's relative work–home satisfaction has been stable. Finally, finding work a haven is unrelated to weekly working hours, and it has not contributed to any increases in working hours over time.     

16-18世纪间西欧的激进思潮与近代国家的形成

16—18世纪间西欧出现过各种各样的激进思潮,这些思潮在西欧近代国家形成中均起过重要作用。我们习惯上较多地重视某些思潮,认为这些思潮起主导性的作用,这有一定的道理,但也易于造成一些片面的认识。各种被认为非主流的激进思潮的传播和实践,同样在西欧近代国家形成过程中起过重要作用。只有这样来看问题,我们才能真正认识西欧近代国家形成的特点。     

清道咸年间边疆史地学研究的时代特征

清代道咸年间的边疆史地学研究 ,在继承前人的基础上 ,特别是在内忧外患与时势的激荡下 ,表现出了前所未有的发展新趋势和新特征。在这一时期 ,中俄边疆史地研究兴起 ;西北边疆史地学空前兴盛 ,并且与蒙元史研究相并发展 ;边疆史地研究中有明显的经世致用目的 ,方法上注重文献考辨与实地考察相结合。并且 ,此一时期边疆史地研究呈现出的空前的忧患意识和世界性意识 ,具有鲜明的时代特征     

Family Trends and Transracial Adoption in the United States

Several demographic trends have changed family formation in the United States resulting in fewer babies being made available for adoption. At the same time the number of transracial adoptions appears to be increasing. We use the 5% Public Use Microdata Sample of the 2000 census and the National Survey of Adoptive Parents to examine the social and demographic characteristics of those who adopt transracially. Transracial adoption of Hispanic and Asian children, but not Black children, is associated with higher income and education levels. It is less likely in the South, but more likely among those who have had military experience.     

Adoptions, 2000–2001

ABSTRACT

The number of domestic adoptions has remained relatively constant over the past 15 years, varying between 121,000 and 127,000, but placements have increasingly been completed by public agencies. Adoption of foreign-born children in the United States has nearly tripled in the past 20 years. Despite the increased national interest in adoption in the past decade and the efforts of many dedicated individuals and agencies, it is still difficult to determine the total number of adoptions in the United States. No one agency is charged with compiling adoption information on all adoptions in the United States, and the agencies that do have access to some types of adoption information have no mandate or incentive to compile that information so that it could be integrated with other sources of adoption information.     

The Single-Father Family

SUMMARY

This paper examines the demographic and economic characteristics of single-father families, with particular attention to public transfer receipt. Cohabiting and non-cohabiting single fathers are examined and compared to fathers in married-couple families. Estimates from the 1997 March, Current Population Survey (CPS) are featured. Selected trend data for 1984, 1989, and 1996 are also presented. The analyses show that single fathers earn substantially less than married fathers, have lower household incomes, are less educated, and are substantially more likely to be receiving public transfers. Further, the socioeconomic gap between single and married fathers has been increasing since 1984.     

汉代“少吏”的研究现状与前瞻

汉代“少吏”指汉代官僚群体中有百石、斗食、佐史之秩的低级官吏。因其位处官僚结构底层,向为治秦汉制度史者所忽视。通过对百年（1914-2011）来汉代少吏的研究现状之综述,指出目前汉代少吏诸多方面亟待学者深入探讨。如汉代少吏的历史沿革,汉代社会的少吏名目、人数及分布状况,汉代社会的少吏制度,汉代少吏与其他社会势力（各级官僚、豪族、宗族）的互动关系,汉代少吏的趋贱历程等。汉代少吏是一座亟待学者挖掘的矿藏,是一个值得关注的研究课题。     

Fertility In England: A Long-Term Perspective

This paper deals with two aspects of long-run fertility trends in England. First detailed and widely comparable fertility measures (Coale's indices) are reconstructed for England from the mid-sixteenth century to the present. Secondly the extent and nature of local and regional variation in those indices is discussed. The calculation of Coale's indices has never previously been attempted for so long a time span. Doing so requires the use of several different sources of information and a new method for combining them. The results provide significant insights into the development of the distinctive English demographic regime. The analysis of spatial patterns makes it apparent that local, rather than regional, variation was the main source of different fertility patterns in the nineteenth century. These patterns are obscured when counties or larger units are made the framework for analysis.     

论黄金在当今世界货币体系中的重新定位

着重探讨黄金与美元走势的历史相关关系,并探讨剖析了在如今国际金融危机和全球经济衰退阴影下,黄金在国际货币体系中重新定位的可能性.在此基础上,分析了我国现今对黄金储备的态度,并提出适当提高我国政府财富储备中的份额的建议.