宋代古音学考论

宋代古音学是在吴开拓下发展起来的。它的建立和发展 ,有着其深刻的历史背景和社会基础。隋唐人的协音注释为它作了前期准备 ;对前儒经说的怀疑以及对《集韵》《礼部韵略》旧韵模式的不满 ,促使了宋人对古音学的研究。它的蓬勃发展 ,一是表现为研究古音的著述很多 ,二是研究古韵的学者很多 ,他们在各种著述中发表了很多古音学方面的见解。宋代古音学虽然以通转叶音说为主体 ,但宋儒之中不少人对古本音问题以及对叶音说的错误 ,都有相当深刻的认识 ,并提出了古无叶音说的口号。本篇从古音学史的角度 ,探讨了宋代古音学形成的历史条件及社会基础 ,并讨论了宋代古音学的历史功绩及其是非问题。     

Conceptions over time: Are language and the here-and-now up to the task?

Is it possible to explain students’ conceptions of natural phenomena purely in terms of the interactions between two people and the language they use during an interview? I argue that this hypothesis cannot be accepted on several grounds. First, contextual factors prior to the interview influence the course of its events, and that these in turn influence future events. Second, people have agency over their interactions and the ability to use language creatively in ways that a strong version of language preordination inherent in this hypothesis would not permit. Third, people bring language fluency and ideas to an interview that allow them to grapple with phenomena and issues they might not have previously considered, and formulate conceptions that they can and do use in future interactions. In addition, I argue that the field of science education is able to consider curricular and instructional issues relating to students’ conceptions without resorting to the extremes of cultural relativism or intellectual imperialism, and that conceptual change theory addresses both the processes and outcomes of students’ interactions.     

分离变量法解三维的分数阶混合扩散-波动方程的初边值问题

本文考虑在有限区间上三维的时间分数阶混合扩散-波动方程的初边值问题。使用分离变量法,导出三维的时间分数阶混合扩散方程和初边值问题的基本解。     

关于三元函数极值的探讨

首先讨论了三元函数的条件极值,利用参数方程法得到了三元函数条件极值是否存在的判定定理;其次讨论了三元函数的无条件极值问题,得到了极值存在的几个判别准则．     

Student-focused approaches to teaching in relation to context and teacher characteristics

The purpose of this paper is to gain more insight into the relationship between teachers’ approaches to teaching on the one hand, and the characteristics of context and teacher demographics on the other. Data were collected from 50 teaching staff at the University of Antwerp and from three sources: a Dutch translation of the Approaches to Teaching Inventory (ATI), information given by the participants, and information obtained through the personnel department of the university. Only the conceptual change/student-focused scale of the ATI had good reliability and was used for further analysis. Analysis of variance (ANOVA) showed no relationship between teachers’ approaches to teaching and the context variables of expert level of students, teaching discipline and the number of students in the classroom. Neither was a relationship found between the teachers’ conceptual change/student-focused approach and the teacher characteristics of gender, academic status, teaching experience, age and intention to participate in teacher training. Several interpretations of these data and perspectives for further research are discussed.     

基于三阶段DEA模型的国家大学科技园孵化效率研究

国家大学科技园创新孵化和成果转化能力,已成为区域经济服务能力的重要支撑。本文运用三阶段DEA模型,在考虑环境变量影响下,测度国家大学科技园孵化效率。结果表明,调整后技术效率,中部和东北地区被低估,东部和西部地区被高估,环境因素主要制约中部大学科技园孵化效率提升。全国技术效率和规模效率被高估,纯技术效率被低估,但高估程度大于低估程度。环境变量作用表现在:完善地区基础设施,强化信息共享,可提高国家大学科技园孵化效率；推动区域经济发展,提高政府科技支持强度,可以分别降低孵化基金和从业人员的投入冗余,但人力资本密集程度对国家大学科技园孵化效率提升有一定延迟。     

A typology of career barriers

While most studies have focused primarily on the correlates of career barriers, research examining specific career barrier typology experienced among college students remains limited. Employing cluster analysis, this study explored the career barrier typology of 318 college students using the Korean college students’ Career Barrier Inventory (KCBI). The variables used in this study included ‘personality’ (hardiness, trait anxiety, locus of control, resilience, and optimism) and ‘career maturity attitude’. Two major conclusions were drawn. Firstly, cluster analysis of the KCBI identified four groups of participants; (a) a salient external career barrier group, (b) a well adjusted group, (c) a salient internal career barrier group, and (d) the worst career barrier group. Secondly, the results suggest discrepant differences of personality variables and career attitude maturity among the clustered groups. Limitations of the present study and suggestions for future research are also discussed.     

适切语境——孔子言语交际观管窥

本文以记述孔子言行的《论语》为依据,探讨孔子关于言语交际应切合语境的思想。结合话语分析等学科关于语境的理论,论文从社会环境和交际情景两大语境因素分析孔子的观点,其中交际情景又具体分为时空场合和交际对象。     

利用偏导数求多元不定式的极限

1696年,洛必达（L’Hospital）给出了利用导数求一元不定式极限的著名的洛必达法则,本文在此基础上,给出了利用偏导数判定0/0型或∞/∞型多元不定式的极限是否存在的判定定理,以及在确定极限存在的条件下将极限求出来的方法．     

关于NA随机序列的一类强极限定理

主要考虑同分布的NA随机序列(ξ,ξn)n∈w,满足E ξ <∞或E ξ =∞. 通过把b-1n ∑nk=1 akξk划分成四部分,得到一类强极限定理.