鲁迅与赛珍珠小说人物形象比较——以阿Q和王龙为例

阿Q与王龙分别属于鲁迅和赛珍珠笔下的人物,文章从剖析两位人物形象着手,探讨两位作家在人物塑造和对人物本质的把握方面的相似性,并通过对两位作家生活经历和思想背景的比较,提出自己的一些思考。     

On a multiple endpoints testing problem

In a clinical trial comparing drug with placebo, where there are multiple primary endpoints, we consider testing problems where an efficacious drug effect can be claimed only if statistical significance is demonstrated at the nominal level for all endpoints. Under the assumption that the data are multivariate normal, the multiple endpoint-testing problem is formulated. The usual testing procedure involves testing each endpoint separately at the same significance level using two-sample t-tests, and claiming drug efficacy only if each t-statistic is significant. In this paper we investigate properties of this procedure. We show that it is identical to both an intersection union test and the likelihood ratio test. A simple expression for the p-value is given. The level and power function are studied; it is shown that the test may be conservative and that it is biased. Computable bounds for the power function are established.     

基于RS分析的中国债券市场分形特征研究

文章详细讨论了RS分析方法、概率空间分形维的测度,通过对上证国债指数和上证企债指数的RS分析,得到了两序列赫斯特指数和非周期循环长度,进一步得出中国债券市场为分形市场的结论.     

Characteristic function estimation of non-Gaussian Ornstein–Uhlenbeck processes

Continuous non-Gaussian stationary processes of the OU-type are becoming increasingly popular given their flexibility in modelling stylized features of financial series such as asymmetry, heavy tails and jumps. The use of non-Gaussian marginal distributions makes likelihood analysis of these processes unfeasible for virtually all cases of interest. This paper exploits the self-decomposability of the marginal laws of OU processes to provide explicit expressions of the characteristic function which can be applied to several models as well as to develop efficient estimation techniques based on the empirical characteristic function. Extensions to OU-based stochastic volatility models are provided.     

Reconsideration of the F-test of the analysis of variance: the semi-bayesian significance test

The usual F-test of the analysis of variance is reconsidered within the Bayesian framework, In terms of predictive distributions, This leads to the notion of semi-Bayesian significance test, so called because it consists in only probabilizing the space of nuisance parameters, thus bringing a general principle for “eliminating” nuisance parameters, or more exactly incorporating information about these parameters. The approach is shown to extend the F-tests, by allowing the testing of hypotheses of non-zero effects.     

‘My dad hangs out of helicopter doors and takes pictures of oil platforms': Children's accounts of parental work in the oil and gas industry

Against the backdrop of the acceleration in pace of work and family life over the last decade, and the accompanying intensification of the work-family debate, this paper argues for the need to include children as stakeholders in the work-family debate. The ethnographic study on which this paper is based brings together children, family, work and community to explore interrelationships between workplace change, parental employment and family life in the oil and gas industry in Scotland. This paper focuses specifically on children's accounts of parental work and the work-family interface. Children, aged 8-12, were seen in schools and at home. Eight focus groups were conducted in two primary schools with 33 children. Nineteen of the families of these children participated in follow-up home interviews, in which 21 focus group children and a further 21 children (siblings, cousins and friends) were seen at home. Multiple methods were used: pictures and photographs of 'work', drawings, a poem, vignettes, word games, and a 'life mode technique'. The paper discusses children's concepts of 'work'; children's knowledge of parental work and the oil industry; children's perceptions of the impact of work on their parents; children's accounts of the effects of parental work on them and the importance of 'family time'; children's own work aspirations; and children's views and values about involvement, communication and decision making regarding parental work. Similarities and differences between children's accounts are highlighted. Sobre el telón de fondo del aumento de paso del trabajo y de la vida familiar en esta última década, y la intensificación del debate 'trabajo/familia' que lo acompaña, este artículo aboga por lo necesidad de incluir a los niños como partes interesadas en tal debate. El estudio etnográfico sobre el cual se basa este artiículo reune a los niños, la familia, el trabajo y la comunidad para explorar las interrelaciones entre el cambio de lugar del trabajo, el empleo de los padres y la vida familiar en la industria petrolera y del gas natural en Escocia. Este artículo se centra específicamente en las cuentas de unos niños del trabajo de los padres y de la interrelación entre el trabajo y la familia. Se entrevistaron a unos niños de 8—12 anos de edad en la escuela y en casa. Se realizaron ocho grupos de enfoque con 33 niños en dos escuelas de estudios primarios. De las familias de estos niños, 19 participaron en entrevistas de seguimiento, en las cuales 21 niños de los grupos de enfoque y 21 niños más (hermanos, primos y amigos,) fueron entrevistados en casa. Se emplearon múltiples métodos: ilustraciones y fotografías de ‘trabajo', dibujos, un poema, estampas, juegos con palabras y una ‘técnica modo de vida'. El artículo trata de los conceptos de los niños del trabajo; los conocimientos de los niños del trabajo de los padres y de la industria petrolera; las percepciones de los niños del efecto del trabajo en sus padres; las cuentas de los niños de los efectos del trabajo de los padres en los mismos niños y de la importancia del ‘tiempo para la familia'; las propias aspiraciones del los niños acerca del trabajo; y los puntos de vista y los valores de los niños sobre la participación, la comunicación y la toma de decisiones acerca del trabajo de los padres. Se ponen del relieve los elementos en común y las diferencias entre las cuentas de los niños.     

INFORMATION INTERDEPENDENCE: Keohane and Nye's complex interdependence in the information age

A well-known and respected attempt to theorize interdependence in the field of international relations is complex interdependence. In Power and Interdependence , Robert O. Keohane and Joseph S. Nye, Jr define interdependence as reciprocal effects among actors resulting from 'international transactions - flows of money, goods, people and messages across international boundaries'. Though much research has been done on the effects of interdependence on the first three, the flows of messages have been studied less often. Keohane and Nye addressed the issue in a 1998 article in Foreign Affairs , discussing changes in the global environment resulting from the information age which have had an impact on their ideas. This article proposes to go deeper into complex interdependence. The world is becoming increasingly 'information interdependent' and this essay is an attempt to apply the assumptions and concepts presented in complex interdependence to the information age. In the final analysis, complex interdependence complements research from the field of communications, that information flows should be understood as underlying mechanisms and processes that facilitate contextual understanding of issues. It maintains the integrity of the assumptions of complex interdependence, while adding an understanding of the nature of information and information flows.     

Intergenerational Support and Depression Among Elders in Rural China: Do Daughters‐In‐Law Matter?

This study examined the influence of intergenerational assistance with household chores and personal care from sons, daughters, and daughters‐in‐law on the depressive symptoms of older adults in rural China. The sample derived from rural Anhui Province, a region with a strong hierarchy of support preferences that leads with sons and their families. We used data from a random sample of 1,281 adults aged 60 and over, who were interviewed in 2001 and 2003. Analyses indicated that depressive symptoms were usually reduced by assistance from daughters‐in‐law and increased sometimes when such support was from sons. These relationships held most strongly when mothers coresided with their daughters‐in‐law. This research suggests that the benefits of intergenerational support are conditional on culturally prescribed expectations.     

模式S应答处理中报头检测算法的研究与实现

叙述了模式S应答信号处理的特点,包括模式S应答信号的格式和相关的目标报头检测算法、置信度判定算法以及检错纠错算法等处理算法。介绍了报头检测算法,包括视频预处理、沿提取、报头脉冲检测、参考功率值计算、交叠测试、功率一致性测试、DF验证和再触发等处理步骤。给出了报头检测算法的FPGA实现方案,采用Verilog HDL语言完成了所有功能模块的设计,并进行了电路仿真实验。仿真结果表明,该方案设计合理,能够快速准确地检测出有效报头脉冲。     

论20世纪中叶美国人力资本理论兴起的历史条件

人力资本理论于20世纪中叶在美国经济学界兴起有着特定的历史条件。美国政府在人力资源的开发和利用方面的努力，“二战”后美国政府对外经济援助计划的实践与反思，经济生活中出现很多难以解释的现象，以计算机的应用为核心之一的第三次科技革命．都为20世纪中叶人力资本理论在美国的兴起创造了历史条件。