小学生阅读迁移机制的初步研究--字词表征还是内容表征

探讨文章字词与内容在小学生篇章阅读迁移中的作用。结果发现,阅读水平和阅读条件均对阅读迁移效果有显著主效应。阅读水平低的被试的阅读准确性提高得更大;完全重复条件和词汇重复条件在阅读时间和准确性上都没有显著差异,完全重复条件下的阅读时间和准确性均比意义重复及无相关条件的阅读时间和准确性提高得更多;词汇重复条件下的阅读时间和准确性显著高于意义重复条件下的成绩;词汇相同的阅读准确性也显著高于无相关条件下的阅读准确性。据此,我们可以初步得出小学生的篇章阅读迁移主要依赖词汇表征,即词汇表征是小学生篇章阅读迁移的主要机制。     

言语指导对实验操作技能形成影响的初步研究

本研究以112名中师学生为被试,采用实验组控制组后测实验设汁,选择中和滴定作为实验操作任务,探讨了言语指导对实验操作技能形成的影响。结果表明．言语指导能明显地促进学生实验操作技能的形成,特别是在实验操作动作的自动化方面。     

大学生日常问题解决能力的特点及相关因素研究

运用自我评价与他人评价相结合的方法 ,对 664名大学生日常问题解决能力进行调查分析。结果表明 ,大学生日常问题解决能力有较强的领域特性和对象特性 ;人际能力、自我调控能力及自我管理能力是构成大学生日常问题解决能力的三大因子 ;在不同因子上存在年级或性别差异 ,且与身体健康、经济状况等因素具有显著的相关性。     

Semantic priming from crowded words

Vision in a cluttered scene is extremely inefficient. This damaging effect of clutter, known as crowding, affects many aspects of visual processing (e.g., reading speed). We examined observers' processing of crowded targets in a lexical decision task, using single-character Chinese words that are compact but carry semantic meaning. Despite being unrecognizable and indistinguishable from matched nonwords, crowded prime words still generated robust semantic-priming effects on lexical decisions for test words presented in isolation. Indeed, the semantic-priming effect of crowded primes was similar to that of uncrowded primes. These findings show that the meanings of words survive crowding even when the identities of the words do not, suggesting that crowding does not prevent semantic activation, a process that may have evolved in the context of a cluttered visual environment.     

马克思《1861—1863年经济学手稿》对唯物史观的运用与发展——以对斯密生产劳动理论的批判为视角

唯物史观在《德意志意识形态》中创立之后,马克思在《资本论》及其手稿中通过对资本主义社会的科学批判使其得到运用与发展。马克思在《1861—1863年经济学手稿》中对斯密关于生产劳动社会规定性和物质规定性定义的批判,运用了唯物史观科学批判功能的历史辩证法引导出生产劳动的历史性生产关系线索,阐释了资本主义生产劳动的历史性;运用从抽象上升到具体的方法,在揭示出资本主义生产关系的实质之上,论证了资本主义生产劳动的本质特征。与此同时,唯物史观的价值批判功能表现出对资本主义生产劳动非人道性质的批判。马克思在《1861—1863年经济学手稿》中通过对斯密生产劳动理论的批判,创立了科学的生产劳动理论,丰富与发展了唯物史观关于资本主义生产劳动问题的研究。这对于我们理解新时代中国特色社会主义的生产劳动有一定的启发意义。     

Factors Influencing Clinical Follow-Up for Individuals with a Personal History of Breast and/or Ovarian Cancer and Previous Uninformative <Emphasis Type="Italic">BRCA1</Emphasis> and <Emphasis Type="Italic">BRCA2</Emphasis> Testing

Genetic testing for inherited cancer risk has recently improved through the advent of multi-gene panels and the addition of deletion and duplication analysis of the BRCA genes. The primary aim of this study was to determine which factors influence the intent of individuals with a personal history of breast and/or ovarian cancer and negative or uncertain BRCA1 and BRCA2 testing to return to a hereditary cancer program for additional genetic risk assessment, counseling, and testing. Surveys were sent to 1197 individuals and 257 were returned. Of those participants who were planning to return to clinic, most cited having family members who could benefit from the test result as the primary motivation to return. Many participants who were not planning to return to clinic cited the cost of testing as a barrier to return. Cost of testing and concerns about insurance coverage were the most commonly cited barriers for the group of participants who were undecided about returning to clinic. Results from this study may be used to guide re-contact efforts by clinicians to increase patient uptake to return to clinic for up-to-date genetic risk assessment, counseling, and testing.     

体验概念的界定与辨析

体验是情绪的核心成份之一.然而,由于体验的复杂性,长期以来情绪心理学家乃至整个心理学界却一直鲜有研究.为弥补情绪心理学研究的缺失,更为了进一步完善心理学中基本概念的研究,该文首先从散见于相关学科对体验概念的零星论述中,提炼出建构体验概念所需的思想质料与方法.随后对其进行系统化的理论分析,指出目前研究中存在的问题.最后,通过相关概念辨析的方法揭示出心理学意义上体验的内涵,即体验,是个体以身体为中介,以“行或思”为手段,以知情相互作用为典型特征,作用于人的对象对人产生意义时而引发的不断生成的居身状态.     

视觉监控作业中信号间隔时间和双任务对信号觉察的影响

本研究运用模拟实验,考察了以仪表显示为主的监控系统中信号间隔时间和双作业任务对人觉察信号的反应时间的影响.双作业中的主任务是要求被试同时监视4个仪表,次任务为对显示屏上一个红色亮点是否出现闪烁作简单的辨别反应.实验结果表明信号间隔时间是影响信号觉察反应时的一个重要因素.随着信号间隔时间由30-50秒延长到8-10分钟,信号觉察反应时随之先快后慢地增加.在低负荷的仪表监视作业中,通过增加一个刺激率较高而又比较简单的次任务,可使被试保持较高的唤醒水平和更好地集中注意,从而有利于提高信号觉察效率.     

Twin-coupled domain structures in epitaxial relaxor ferroelectric Ba(Zr,Ti)O3 thin films on (001) MgO substrate

We report the twin-coupled multi-oriented domain structures in the epitaxial BZT20 (20%Zr) films grown on the (001) MgO substrate using pulsed-laser deposition. Transmission electron microscopy shows that the film consists of an epitaxial layer of pseudo-cubic perovskite structure and a nanopillar layer of multi-oriented twin domain structures near the surface. Four types of the twin domains were formed in the nanopillar layers by coherently joining their {111} with the epilayer and aligning their ?110? directions parallel to the ?110? axes of the epilayer. A non-uniform polarization switching behavior was observed due to the formation of such complex structure in the BZT20 films.     

长三角经济发展中土地资源的增长阻力分析

土地等基本自然资源的约束会造成实际经济增长水平趋于下降.本文基于新古典增长模型,就长三角地区的土地资源对经济发展的增长阻力进行了实证分析.计量结果显示,在1978-2006年间,由于土地资源的消耗而造成长三角地区总体经济增长速度平均每年下降了0.52%;上海和江苏的土地"尾效"分别为0.21%和0.18%.改变上述状况的一个有效途经就是调整经济增长中的要素结构,减少土地和资本的依赖程度,通过技术创新推动长三角地区的经济增长.