The geolinguistics of /l/ vocalization in Australia and New Zealand

Recent work in comparative sociolinguistics marks a re–engagement of variationists studying language change in progress with geography. In this study of the vocalization of /l/ in nine speech localities in Australian and New Zealand English, the geographical, the linguistic and the social constraints on variation are all included in the quantitative analysis. The usual identification of the starting point of change as the factor that is quantitatively ‘more’ is challenged by variable constraint hierarchies associated with speech localities as well as by the identification of Christchurch as the place of the origin of the sound change. Neither the gravity nor the urban hierarchy models of diffusion explain the geographical pattern of the sound change; a number of place effects are proposed as potential explanations, including the geographical variability of the vigorousness of the change. Variable isoglosses representing discontinuities in the dataset are mapped; they reveal the subtle patterns of sociolinguistic variation that mark the difference between Australian English and New Zealand English.     

回旋速调管外接模式转换器研究

在模式耦合理论的基础上,详细讨论了8 mm高功率回旋速调管外接TE01~TE11模式转换器,采用波导轴线弯曲与波导半径渐变的结构和不同的相位重匹配技术进行优化分析,有效地抑制了寄生模式的转换,提高了输出模式转换效率,并得到了最优几何参量。     

用分形理论研究上市公司发展周期

采用分形理论的重标极差分析法 (R/S分析方法 )对上市公司的发展周期进行了研究     

网络营销的成功之道

网络营销的成功之道;在于要提供个性化的顾客服务,并重视顾客的长期价值;在于充分发挥网络互动性优势,开展互动式营销;在于要遵循网络礼仪,不接受未经请求的资料信息、实行软营销;还在于要利用网络虚拟化特征,以降低营销成本。     

知识和知识管理：一个文献综述

本文通过对国外知识和知识管理相关文献的整理,利用AlaviandLeidner(2001)的文献作为框架和主线,整合了当前国际上较前沿的有关知识管理的相关文献,比较系统地对知识和知识管理的定义以及知识管理的过程进行了综述。     

"二次解读":不可或缺的翻译过程

在翻译过程中是否存在和需要译者的"二次解读",从认识论的角度看,这个问题的提出,对翻译学特别是对翻译过程本身的研究显得愈发重要;从翻译实践和教学角度看,对译者和翻译专业的教师同样重要."二次解读"不仅涉及译者对译入文本语言和文化层面的再度解读,以确保译文质量,而且引发对翻译全过程的哲学思考.根据辩证唯物主义的认识论,人对客观事物的认识不是一次完成的,故翻译过程应是动态的,其中不仅存在而且确实需要译者的"二次解读".     

Negotiating the New Market: Women,Families, Women’s Organizations and the Economic Transition in Poland

Women have been affected more negatively than men by the economic transformation in Poland. They are the majority of the unemployed and the poor, they have a more difficult time finding jobs, and their incomes are significantly lower than mens. The disadvantageous position of women on the labor market, coupled with increasing governmental withdrawal from social provisioning like childcare, health care, and education, has created problems for families, especially for growing numbers of single mothers and two-parent low-income families. The transition to a market economy also has generated a steady growth of womens organizations which have stepped in where the state has withdrawn from social provisioning and provide assistance to women and their families. These organizations are not only helping women and low-income families adjust to the new market situation, but also to negotiate the market so that it better responds to their needs.     

Transitions on the Margins of Work and Family Life for Low-Income African-American Fathers

Few studies explore linked transitions in work and family life for low-income African-American men. I examine patterns of work engagement among three cohorts of fathers and explore how they shape transitions in family residence and dynamics of family life. Establishment of a household was considered a shared project with partners and extended kin networks. Findings indicated that most fathers nested residence in households within sporadic spells of employment. Younger cohorts were less able to secure stable work and family arrangements at early ages, in comparison to older and middle cohorts. Implications for social policy include recognition of family formation beyond marital status, including negotiation of household establishment and arrangements for multiple providers in extended kin networks.This study was conducted with support from the National Institute for Child Health and Human Development R03 HD42074-2 to Kevin M. Roy and the Purdue Research Foundation at Purdue University in West Lafayette.     

从ACM/ICPC看计算机算法设计教学改革

美国计算机协会(ACM)国际大学生程序设计竞赛是全球大学生计算机程序能力竞赛活动中最有影响力的一项赛事.通过参加ACM活动可以对计算机专业学生的算法设计教学起到极大的促进作用.     

马克思主义关于人与自然关系的理性思考

考察了马克思主义关于自然的含义、特征,人与自然的关系,认为人化自然和自在自然都具有客观实在性,二者相互依赖、相互作用、相互转化。