英语词缀的语法化研究     

唐岚 《重庆职业技术学院学报》2008,17(5):71-73

语法化研究语法形式来源和固化的问题,是语言学家长期关心的问题。认知语言学对语法化研究非常重视。词缀作为词汇扩展演化的重要工具,反映了人类语言词汇的重要特征,从语言认知加工的角度来看．词缀有利于语言的使用者以较小的认知能量获取较大的认知效益。  相似文献   

A cross-layer design approach on spectrum allocation and resource scheduling in cognitive PMP networks     

Jie Chen  Min-jian Zhao  Qiao Zhou  Shi-ju Li 《浙江大学学报(A卷英文版)》2008,9(4):435-444

We propose the spectrum allocation and resource scheduling algorithms in cognitive point to multipoint （PMP） networks with rapid changes of spectrum opportunities and present a media access control （MAC） protocol based on these algorithms. The objective of spectrum allocation is to make efficient use of the spectrum while maintaining the transceiver synchronization on frequency and time in the network. The objective of resource scheduling is to guarantee the quality of service （QoS） requirements of different kinds of connections and to minimize the total energy consumption in the network as well. By sensing only a small set of possible channels in each slot based on the state transition probability of each channel, our spectrum allocation algorithm achieves high spectrum efficiency in the network. The resource scheduling problem is divided into three sub problems and we derive optimal solutions to these problems by greedy algorithm and convex optimization. The simulation results show that our algorithm can make efficient use of the spectrum and the network resources at a cost of low computational complexity.  相似文献   

当前认知科学背景下幽默言语理论研究述评     

吴娟 《毕节学院学报》2008,26(5)

从语义脚本、概念复合论等四大视角宏观勾勒认知领域幽默言语理论研究基本现状,同时也分析其中微观问题,认为幽默语义跃迁过程中隐含着被忽略的＂释话＂过程;而会话幽默中的共同心理预设实际上即是人们以知识结构的方式形成的趋同的社会心理默契。  相似文献   

社会不确定事件下个体理性、群体理性与制度演化——基于认知经济学的视角     

邬美红  罗贵明 《宜春学院学报》2021,(1)

在社会不确定性事件下,经典经济学的完全理性受到了来自认知科学的挑战。认知经济学的发展冲破了完全理性的局限,提出在社会不确定事件下,存在着个体的有限理性和群体的有限理性,强调要正确认识个体理性和学习、群体理性和制度演化的关系。认知经济学在本体论上属于个人主义,在认识论上属于实证主义,与经典经济学处于完全不同的路径。  相似文献   

How do types of interaction and phases of self-regulated learning set a stage for collaborative engagement?     

《Learning and Instruction》2016

This study investigates how self-regulated learning phases are related to collaborative engagement in two different collaborative task conditions. It integrates SRL theory and the concept of engagement, including interaction in collaboration, as key characteristics of engagement. Forty-four second-year teacher education students worked in groups during a 7-week math didactic course. We collected 84 h of video recordings and coded the group's cognitive and socioemotional interaction and three phases of self-regulation within interaction, including forethought, performance and reflection. After that we analyzed the relationship between the interaction types representing collaborative engagement and SRL phases within two learning tasks. The results show that collaborative engagement did not differ between teacher-led and student-led tasks in terms of the interaction types. However, the results showed that the SRL phases occurred differently within cognitive and socioemotional interaction types when the two task conditions were compared. Findings concerning teacher-led tasks showed invariance in the occurrence of SRL phases across the task and highlighted the relationship between socioemotional interaction and the forethought phase. Additionally, findings concerning the student-led tasks showed systematic changes in the distribution of phases of SRL across sessions in all interaction types. Our results' theoretical and methodological implications for collaborative engagement research are discussed.  相似文献   

The impact of science motivation on cognitive achievement within a 3-lesson unit about renewable energies     

《Studies in Educational Evaluation》2016

Our study analyzed the influence of motivation towards science in relation individual cognitive achievement scores. 232 10th graders of college preparatory school level (‘Gymnasium’) completed a cognitive achievement test three times and a questionnaire quantifying motivation towards science once. A three-lesson module dealt with aspects of the topic renewable energies. The knowledge test was applied one week before (T-0), directly after (T-1) and six weeks after (T-2) participation in the learning module. The questionnaire on science motivation was completed at T-0 in order to receive unaffected data. A test-retest group (acting as control group) of 37 students completed the questionnaires with no intervention. Three motivational groups were selected: highly motivated, intermediate and less motivated. The intervention group showed substantial knowledge gain in short- and in long-term perspectives, almost independently of motivational levels. A positive linear relation between motivation and content knowledge was observable for each test schedule. In particular, intrinsic factors are shown to be responsible for this relationship.We recommend implementing appropriately designed educational settings to promote intrinsic aspects in order to foster performance almost independently of pre-existing knowledge and science motivation We presume pre-existing knowledge as well as learning to be influenced by motivation towards science. Also, pre-existing knowledge may influence individual motivation towards science. Consequently, beyond scientific contents, a focus on motivation of adolescents in science may lead to a synergetic effect for life-long learning.  相似文献   

Individual differences in achievement goals: A longitudinal study of cognitive, emotional, and achievement outcomes   总被引：3，自引：0，他引：3  

Lia M. Daniels  Tara L. Haynes  Robert H. Stupnisky  Raymond P. Perry  Nancy E. Newall  Reinhard Pekrun 《Contemporary educational psychology》2008,33(4):584-608

Within achievement goal theory debate remains regarding the adaptiveness of certain combinations of goals. Assuming a multiple-goals perspective, we used cluster analysis to classify 1002 undergraduate students according to their mastery and performance-approach goals. Four clusters emerged, representing different goal combinations: high mastery/performance (i.e., multiple goals), dominant mastery, dominant performance, and low mastery/performance (i.e., low motivation). In a longitudinal analysis over one academic year, the clusters were compared on cognitive appraisals (expected achievement, perceived success), achievement-related emotions (enjoyment, boredom, anxiety), and objective measures of academic achievement (final grade in Introductory Psychology, GPA). The low-motivation cluster demonstrated the least adaptive profile across all outcomes. The multiple-goals, mastery, and performance clusters showed equivalent levels of achievement; however, students in the performance cluster were more psychologically and emotionally vulnerable than the multiple-goals and mastery clusters. Our discussion focuses on the immediate and potentially long-term implications of specific goal combinations for students and educators, with particular attention to understanding the cognitive and emotional vulnerabilities of students in the performance cluster which appear despite satisfactory achievement levels.  相似文献   

Enhancing student motivation and engagement: The effects of a multidimensional intervention   总被引：2，自引：1，他引：1  

Andrew J. Martin   《Contemporary educational psychology》2008,33(2):239-269

The present study sought to investigate the effects of a multidimensional educational intervention on high school students’ motivation and engagement. The intervention incorporated: (a) multidimensional targets of motivation and engagement, (b) empirically derived intervention methodology, (c) research-based risk and protective factors, (d) established practices that nurture optimal youth development, (e) use of interpersonally skilled staff, and (f) evidence-based programming. Using a pre-/post-treatment/control group design, it was found that the self-complete intervention brought about significant shifts in motivation and engagement. Specifically, findings showed that the treatment group made positive motivation shifts on key dimensions including task management, persistence, anxiety, failure avoidance, and uncertain control. Moreover, against a large weighted external comparison group, the treatment group made positive shifts on valuing, mastery orientation, planning, task management, persistence, failure avoidance, uncertain control, and self-handicapping. Taken together, these findings attest to the potential for multidimensional educational interventions for enhancing students’ motivation and engagement.  相似文献   

Predictors and outcomes of low-income fathers’ reading with their toddlers     

Elisabeth Duursma  Barbara Alexander Pan  Helen Raikes 《Early childhood research quarterly》2008

Most studies of parent–child bookreading have focused on mothers reading to their children. Though the role of fathers in children's lives is widely emphasized, we know almost nothing about father–child bookreading, particularly among low-income families. The present study was designed to examine how often low-income fathers report reading to their children and what the predictors and effects of paternal bookreading are. The fathers in this study were participants in the national evaluation of Early Head Start (EHS) and were recruited via mothers enrolled in the EHS study. Participating fathers were interviewed at home and their children's cognitive and language development were assessed using standardized measures from ages 2 to 5. Results demonstrated a wide variety in frequency of bookreading among fathers. Fathers were more likely to read to their children frequently if they spoke English at home, if they had a high school education, and if their children had better language skills. Fathers’ bookreading predicted children's cognitive outcome. Paternal bookreading did predict children's language outcomes but only for children whose fathers had at least a high school education.  相似文献   

译者的认知过程研究     

李平 《池州师专学报》2008,22(2):91-93

认知语言学是以人对世界认知为基础的,重在对语言现象进行解释的一门新兴学科。本文仅从范畴化、概念隐喻、意象维度、像似性这些人的认知能力或机制来说明翻译过程其实是个认知过程,并以这些认知能力或机制试图对翻译中的原文理解,译文表达,文化介入及审美运用等现象概括到认知上的统一解释。  相似文献