电视对彝族村落社会流动的影响——基于布里莫村的民族志调研

运用参与观察、问卷调查、个人访谈、焦点组访谈等研究方法,对彝族村落的媒介消费状况,电视对村民社会流动的影响等问题进行调研。研究发现,彝族村落的媒介消费呈现出"非立体化"和"单一化"的态势;电视对其社会流动产生了重要影响,但这种影响是"隐性"的,具体表现为:在水平流动中,对村民由农村流向城市具有诱惑作用;在垂直流动和代际流动中,对村民上升流动的决策形成产生了潜移默化的影响。     

The Usefulness of Dictation in ELT Classrooms

Dictation plays an important role in teaching, learning and testing. But different people have different views about its functions. This paper mainly talks about its advantages—improving students’all-r...     

德国知识传播和信息服务创新与探索研究 ——以CrossAsia平台为例

本文以德国柏林国家图书馆开发的CrossAsia平台为研究对象,采用个案研究法,辅以网络调研和个人采访的方式收集资料,从CrossAsia的概念、地位与驱动因素、实践探索、作用分析等三个方面入手,系统梳理柏林国家图书馆在知识传播和出版服务工作方面的创新与探索.对CrossAsia网站的知识传播和出版工作进行系统性的分析...     

Exploring the moderating role of well-being on the adaptive link between self-assessment practices and learning achievement

Self-assessment practices can positively impact student learning and achievement. However, less is known about psychological moderators that can influence the impact that self-assessment practice may have on achievement. Integrating the dual processing self-regulation model and the self-assessment cycle framework, this study examined the role of students’ positive well-being in the link between self-assessment practices and domain-specific achievement scores. Hierarchical multiple regression analyses using data from 765 secondary school students revealed that self-assessment practices positively predicted achievement scores. Results also showed that positive well-being moderated the relationship between seeking internal feedback and self-reflection and achievement scores, in that the positive link between such self-assessment practices and achievement was stronger for students who had low or moderate well-being. These findings reinforce the impact of self-assessment on learning and add to the ecological validity of the dual processing self-regulation model. The discussion focuses on how these findings contribute to our understanding of how well-being could influence the adaptive role of internal and cognitive self-assessment practices in student learning. Limitations and future research directions are also discussed.     

The bilateral benefits of providing and receiving peer feedback in academic writing across varying L2 proficiency

Although the effectiveness of peer review has been examined, few have tested the joint benefits of providing and receiving feedback features and quality in L2 contexts. The present study investigated variation in key features and quality of feedback provided and received by high and low L2 proficiency students and its benefits on revision in the authentic setting of students experiencing both roles of providing and receiving peer feedback in English academic writing. Analyses on two drafts from 50 students, 1356 idea units of anonymous implementable peer feedback and back-evaluation ratings revealed that the combined effect of providing and receiving feedback on revision was prominent for all students. But the bilateral benefits of providing and receiving feedback features were more significant for high proficiency students, while providing feedback features and quality benefited low proficiency students more. The study implies that students need more bilateral training with both providing and receiving feedback.     

领导风格、自我效能感对个体反馈寻求的影响研究

在对反馈寻求行为进行综述的基础上,探讨组织中领导风格对员工反馈寻求的影响机理,并在此基础上探讨员工自我效能感的调节作用。通过173份数据的实证分析表明,价值认知在领导风格与反馈寻求关系中起完全中介作用,自我效能感的调节作用得到验证。     

基于ATML标准的测试流程表示方法研究

测试信息标准化描述是实现不同ATS平台之间数据交换的关键。针对地面测控设备种类多样及自动测试系统测试任务复杂的情况,对ATML标准进行了深入研究。分析了ATML标准族的背景、目的、模型结构及组件标准,说明了仪器和测试结果组件在实际应用中的信息描述方法,并结合有限自动机的状态转换图理论,提出了测试流程状态转换图模型。实验中设计了一种测试流程信息标准化描述方法,解决了自动测试系统中的数据交换及信息共享问题。实验结果表明ATML在自动测试领域具有良好的发展前景。     

Improving zero-shot retrieval using dense external expansion

Pseudo-relevance feedback (PRF) is a classical technique to improve search engine retrieval effectiveness, by closing the vocabulary gap between users’ query formulations and the relevant documents. While PRF is typically applied on the same target corpus as the final retrieval, in the past, external expansion techniques have sometimes been applied to obtain a high-quality pseudo-relevant feedback set using the external corpus. However, such external expansion approaches have only been studied for sparse (BoW) retrieval methods, and its effectiveness for recent dense retrieval methods remains under-investigated. Indeed, dense retrieval approaches such as ANCE and ColBERT, which conduct similarity search based on encoded contextualised query and document embeddings, are of increasing importance. Moreover, pseudo-relevance feedback mechanisms have been proposed to further enhance dense retrieval effectiveness. In particular, in this work, we examine the application of dense external expansion to improve zero-shot retrieval effectiveness, i.e. evaluation on corpora without further training. Zero-shot retrieval experiments with six datasets, including two TREC datasets and four BEIR datasets, when applying the MSMARCO passage collection as external corpus, indicate that obtaining external feedback documents using ColBERT can significantly improve NDCG@10 for the sparse retrieval (by upto 28%) and the dense retrieval (by upto 12%). In addition, using ANCE on the external corpus brings upto 30% NDCG@10 improvements for the sparse retrieval and upto 29% for the dense retrieval.     

基于社会文化理论的中国大学英语写作反馈方式重构

目前的中国大学英语写作教学使用的多种反馈方式都有其缺点,该研究在社会文化理论的指导下,以定性研究为主,重构英语课堂的写作反馈方式,并进一步分析在师生互动过程中教师可提供的支架以及学习者的反馈投入。结果显示:(1)教师可提供问题式评价标准和评阅培训、组织师生互动、建立写作档案袋、分享写作技巧和资源等支架;(2)学生对于多元反馈模式充分认可,学生的反馈投入和修改意识增强,写作素养得到提升。     

大学英语写作中教师书面反馈的实效性研究

教师书面反馈是否有效？哪种形式更有效？这一直是二语写作和二语习得研究领域备受争议的话题。本研究对非英语专业4个平行班的60名学生分别给予直接反馈、划线＋代码提示反馈、错误划线反馈、零反馈,通过定性与定量分析,探讨4种模式对大学英语高、中、低不同层次学生的写作水平产生的影响。研究结果发现,书面反馈对非英语专业学生英语写作水平的提高是有成效的,且不同层次（高分组、中分组、低分组）学生写作能力的提高幅度与书面反馈的模式密切相关。