《在路上》中的西部情结

当代美国作家杰克.凯鲁亚克的小说《在路上》被誉为是"垮掉的一代"的宣言书和《圣经》,它是美国文学中诠释西行主题的经典之作。小说以主人公萨尔对东部厌倦———对西部的幻想———西部梦想的幻灭为线索,体现了"垮掉的一代"时代背景下所贯穿于作品当中的西部情结的主题。这一主题的凸显过程也暗含了美国文学中对东部和中西部所持的对立的传统看法,即东部是欧洲堕落的化身,而中西部是原始道德的发源地,这种西部情结背后深藏的是"垮掉的一代"对现实的不满、对社会的抗议和对自由精神的追求。     

一类n阶高次微分方程的特解

在复数域内,利用特征方程的特征根给出了一类n阶常系数高次微分方程求特解的方法,推广了已有文献的结果.     

论《金瓶梅》主题意识中的二律背反

《金瓶梅》主题意识二律背反在作品中的表现主要有二:禁欲与纵欲、劝世与骂世,展示了人的自然天性与理性枷锁之间的尖锐矛盾,是人类文明发展进程中的一个痛苦环节。造成《金瓶梅》主题意识二律背反的原因有两点:封建统治阶级的腐朽和新兴资产阶级的崛起、以王守仁为代表的"心学"等新思潮的影响。     

主位推进模式与大学英语阅读教学

大学英语阅读教学把重点放在分析字、词、句及一些语法项目上是长期存在的一种普遍现象,这种教学方法忽略了培养学生的综合阅读能力和把握整体篇章结构的能力,严重阻碍学生取得理想的阅读效果.本文以篇章理论为基础,从句子的交际功能角度出发,试图探讨篇章理论中主速位结构及主位推进模式对大学英语阅读教学的促进作用,以期能帮助学生提高阅...     

基于复杂网络和粒子群算法的滤波与轨道优化模型

嫦娥三号已成功完成软着陆,其着陆准备轨道的位置和着陆轨道及其控制策略是嫦娥三号月球着陆的关键问题。运用天体物理相关理论及智能优化算法构建了基于复杂网络的滤波模型和基于粒子群算法的着陆轨道优化模型,并通过matlab计算及matlab仿真,给出了着陆轨道及其控制策略。     

Development of learning to learn skills in primary school

In Finland, schools’ effectiveness in fostering the development of transversal skills is evaluated through large-scale learning to learn (LTL) assessments. This article presents how LTL skills—general cognitive competences and learning-related motivational beliefs—develop during primary school and how they predict pupils’ CPS skills at the end of sixth grade. The six-year follow-up of 608 pupils shows that cognitive competences demonstrated in the beginning of the first grade in a learning preparedness test predict both later cognitive LTL competences and CPS, but their development is not fully determined by earlier individual differences in learning preparedness in the first grade. Motivational beliefs begin to be related to cognitive LTL performance gradually from age 10 on, and they may have a slightly stronger effect on CPS than on cognitive LTL performance. It is concluded that the development of CPS is partly depending on pupils’ initial learning preparedness and the development of their LTL skills.     

政治外交类语块使用对口译质量影响的调查报告--以张璐在李克强总理在2014年3月记者招待会的翻译为例

语块是近年来二语习得领域的一个热点话题,其相关理论受到越来越多国内二语习得研究者的关注。该研究着重考察二语学习者在口译产出中的语块使用情况。通过对7名英语口译专业学生的汉英口译语料及问卷、访谈数据分析,研究发现：（1）英语口译专业研一学生在汉英口译中对语块使用频率差异较大。大部分学生对语块的运用能力需要提高。就结构而言,动词词组、名词词组等短语类语块使用频率要高于小句类语块的使用频率。（2）对语块使用的准确度方面不同学生差异较大,但产出的大部分语块是正确的,分为完全正确和部分正确。（3）大部分正确语块得益于同学平时的积累,错误语块产生的原因分为同学用近义词对部分语块中单词的替换,或将整个语块转译;另一方面是对语块的不完全理解及体现在笔记上的内容缺失等。（4）语块的准确及高频使用能提高口译的准确度,流利度和信息完整度,即提高译员的口译质量。     

国外海岸带韧性研究进展及其对中国的启示

海岸带韧性可为沿海地区应对全球气候变化与人类活动压力的复合风险提供新的理论源泉和分析视角,对保障沿海地区可持续发展安全具有重要意义.本文在解析海岸带韧性概念内涵的基础上,剖析了以社会生态系统、复杂适应系统等理论为支撑的海岸带韧性理论框架,比较了现有4类评价方法,进而厘清了要素型、过程型和复合型3类评价指标体系的特点,阐...     

Why do students strive to outperform classmates? Unpacking their reasons for pursuing performance goals

Achievement goal theory has evolved since introduced about 40 years ago. One of its newer variants is the goal complex model. It assumes that each achievement goal (i.e., performance or mastery) can be pursued for many reasons and, more provocatively, that the goal’s effects depend partly on why it is pursued. Clearly, the first task for this area is to identify likely goal pursuit reasons, develop and validate a measure of reasons, and chart the influence of those reasons. Progress remains limited, however. Nearly all studies have considered only a small set of reasons suggested predominantly by self-determination theory, overlooking several other plausible reasons. Nor is there an established measure of goal pursuit reasons. To overcome those limitations, the current study validated and tested a new goal complex measure that includes several additional goal pursuit reasons, both personal (e.g., pride) and social (e.g., to make close others proud, or to help or serve others) in nature. Two culturally distinct samples of university students – one from the USA (n = 400), the other from Thailand (n = 404) – completed the measure with performance goals in mind and then reported a diverse array of educational outcomes. Their results converge for the most part. In each sample, the new measure proved to have good structural validity and psychometric properties. Several goal complexes, including the new social ones, showed unique and often desirable relationships with outcomes, too. The findings raise several research directions and implications for achievement goal theory.     

基于检错码静默补偿的跨层链路复激活算法

有效的链路层的复激活算法可以提高语义系统的检错性能。传统方法采用自适应模式匹配方法实现语义系统的跨层链路复激活,当检错码冗余数据块随机放置时,不能有效实现语义检错。提出一种基于检错码静默补偿的跨层链路复激活算法,构建语义系统网络控制模型,设计检错码编码数据块放置方法,提出检错码静默补偿机制并实现跨层链路复激活算法改进。实验结果表明,采用该算法能有效实现语义系统检错码跨层链路激活,谱峰复激活搜索明显,任务执行精度提高17%,算法在语义网通信编码设计等领域具有较好的应用价值。