英语Antonomasia辞格中名称转义及其修辞作用

英语Antonomasia辞格可理解为从基本命名义素派生出新意,是英语词汇意义改变和新义产生的手段之一．所涉及的许多词汇具有鲜明的西方民族文化色彩。出现在Antonomasia辞格中名词有两类：专有名词和普通名词,它们有历史、政治、宗教、文学等渊源。这里的人名、地名、事物名称等都“出身名门”,有着不同凡响的背景．很容易唤起与之相关的联想,形成一种耐人寻味的意蕴,从而构成词的隐喻性或借代性的转义。     

Kid's stuff: the nature and impact of peer and sibling violence on younger and older children

OBJECTIVE: It is widely presumed that when children are hit by peers or siblings, it is not as serious as similar acts between adults or older youth, which would be termed, "assaults" and "violent crimes". The goal of this study was to compare the violent peer and sibling episodes of younger children to those of older youth in terms of their seriousness and association with symptoms that might indicate traumatic effects. METHOD: The study collected reports of past year's violent victimizations and childhood symptoms in a national probability telephone sample of 2030 children and youth ages 2-17. The experiences of 10-17-year olds were obtained via self-reports and those of the 2-9-year olds from caregivers. RESULTS: The younger children's peer and sibling victimizations were not less serious than the older youth on the dimensions of injury, being hit with an object that could cause injury or being victimized on multiple occasions. Younger children and older youth also had similar trauma symptom levels associated with both peer and sibling victimization. CONCLUSION: There was no basis in this study for presuming peer and sibling victimizations to be more benign when they involve younger children. The findings provide justification for being concerned about such peer and sibling violence in schools and families and for counting such victimizations in victimization inventories and clinical assessments.     

Re-conceptualizing Emotion and Motivation to Learn in Classroom Contexts

To better inform and improve classroom teaching and learning, now more than ever before, educational researchers need to effectively and efficiently describe essential components of positive learning environments. In this article, we discuss how our research findings about motivation in classrooms have led to a closer examination of emotions. We describe how motivation theories such as Academic Risk Taking, Flow Theory, and Goal Theory have helped us better understand emotions in our classroom research. Our findings suggest that engaging students in learning requires consistently positive emotional experiences, which contribute to a classroom climate that forms the foundation for teacher–student relationships and interactions necessary for motivation to learn. We conclude that we need to integrate emotion, motivation, and cognition theoretically and methodologically to move our research forward. New theories and methods, even new forms of intellectual discourse, are required. Therefore, we end this article by beginning a discussion of new directions for conceptualizing and researching classrooms in ways that will involve examining the emotions of students and teachers.

FRFT-OFDM系统联合同步算法

研究OFDM系统中的同步问题,通过对LFM信号在分数阶傅里叶域能量汇聚性的分析,提出一种基于FRFT的具有较低复杂度的联合载波频率、采样频率以及符号定时的同步算法.该算法在分数阶傅里叶域对由插入到OFDM符号中的LFM信号所产生的对称点进行搜索,结合FRFT的时移、相移以及分数阶卷积等性质,对3种偏差进行估计.仿真结果表明,该算法的性能随LFM信号长度的增加而提高,且优于其他同类算法.     

Are assessment environments gendered? An analysis of the learning responses of male and female students to different assessment environments

There is considerable variation between male and female Bachelor degree performance at Oxford and Cambridge (Oxbridge) where male students attain more First and Third Class degrees and female students attain more Second Class degrees. Various hypotheses have been put forward to explain this phenomenon including the possibility that the distinctive Oxbridge assessment environment, very different from those at both pre‐ and post‐92 universities, might account for the difference. Data from the Assessment Experience Questionnaire (AEQ; Oxbridge, pre‐ and post‐92 universities, one science, one humanities and one applied social science subject from each) were analysed to determine gendered perceptions of the assessment environment. Significant gender differences were found on five AEQ scales (Quantity of effort, Coverage of syllabus, Quantity and quality of feedback, Use of feedback and Appropriate assessment) but there was no significant interaction between gender and university. Consequently, there were few clues in students' responses to confirm that the Oxbridge assessment environment explains gendered differences in degree performance.     

Comparison of efficiency measures for academic interventions based on acquisition and maintenance

Previous research has demonstrated the importance of examining the instructional efficiency of academic interventions and has defined efficiency as the number of items learned per instructional minute. Maintenance of the skill is also an important instructional goal, however. Therefore, the current study compared efficiency metrics using initial learning and maintenance with 25 fourth‐grade students. Each student was taught the pronunciation and English translation of 12 words from the Esperanto international language with two instructional conditions (six words for each condition). The first condition was traditional drill (TD) rehearsal with all unknown words, and the second was incremental rehearsal (IR) with one unknown and eight known words. Results indicated that, although the IR condition led to significantly more words being retained, TD was significantly more efficient using initial learning. The two conditions were equally efficient, however, when maintenance data were used. Therefore, evaluating the efficiency of instructional interventions should consider maintenance data as well. © 2009 Wiley Periodicals, Inc.     

Altitude training in endurance running: perceptions of elite athletes and support staff

This study sought to establish perceptions of elite endurance athletes on the role and worth of altitude training. Elite British endurance runners were surveyed to identify the altitude and hypoxic training methods utilised, along with reasons for use, and any situational, cultural and behaviour factors influencing these. Prior to the 2012 Olympics Games, 39 athletes and 20 support staff (coaches/practitioners) completed an internet-based survey to establish differences between current practices and the accepted “best-practice”. Almost all of the athletes (98%) and support staff (95%) surveyed had utilised altitude and hypoxic training, or had advised it to athletes. 75% of athletes believed altitude and hypoxia to be a “very important” factor in their training regime, with 50% of support staff believing the same. Athletes and support staff were in agreement of the methods of altitude training utilised (i.e. 'hypoxic dose’ and strategy), with camps lasting 3–4 weeks at 1,500–2,500 m being the most popular. Athletes and support staff are utilising altitude and hypoxic training methods in a manner agreeing with research-based suggestions. The survey identified a number of specific challenges and priorities, which could provide scope to optimise future altitude training methods for endurance performance in these elite groups.