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1.
采用自由分类法考察傈僳族和普米族高中生对11种基本颜色词的分类,并同摩梭高中生比较。结果表明,傈僳族高中生基本颜色词的概念结构有两个维度:①彩色/非彩色;②亮色/暗色。11个基本颜色词被分为非彩色,暗杂色,花朵、水果色和背景色4类。普米族高中生基本颜色词的概念结构有两个维度:①彩色/非彩色;②单色/杂色。11个基本颜色词被分为非彩色、暗杂色、彩色及红粉色4类。傈僳族、普米族和摩梭人对11种基本颜色词的分类既有共性,也有差异,体现了遗传、环境、文化和教育对颜色认知的影响。研究还表明,地理环境通过生产方式影响人类的颜色认知。  相似文献   

2.
This study presents evidence that adaptation to colored light alters the apparent hue of subsequently presented stimuli in pigeons. During training, right and left keypecks were reinforced following responses to colored and nominally achromatic slides, respectively. During test sessions, subjects continued to observe and report on the two classes of slides while 6-min components alternated, such that the experimental chamber was illuminated with either a green flood lamp or a nominally white bulb. The proportion of right keypecks following achromatic slides was much higher during green components than during white components, indicating that the achromatic slides appeared more like the chromatic slides.  相似文献   

3.
Shelagh Ross, Staff Tutor in Science in the Open University's East Anglian Region, and Eileen Scanlon, Lecturer in the Open University's Institute of Educational Technology, have conducted a study of course choice for Science Faculty students. They asked the question as to whether Science Foundation course students select fairly traditional degree profiles of an ‘all Science’ tendency, or whether they range more freely across a range of subjects, and secondly, what role taking one or two Foundation courses played in contributing to success.  相似文献   

4.
Delayed matching-to-sample performance by pigeons was interfered with by displaying a monochromatic annulus around the center (sample) pecking key. The wavelength of the annulus and its point of interpolation within a trial were varied to determine possible differential effects on matching accuracy. Experiment 1 showed that delayed matching was most disrupted when the interference stimulus (570 nm, 630 nm, or achromatic white) appeared during the delay interval of a trial. Little if any disruption occurred when the interference stimulus was present during the sample and choice periods. The spectral relationship between the chromatic interference stimuli (570 and 630 nm) and the sample stimuli (570 and 630 nm) did not consistently influence the degree to which matching accuracy was affected in any interpolation condition. Experiment 2 found a similar pattern of within-trial effects when the interference stimulus was simply a change from a white achromatic annulus to a chromatic one. This finding indicates that illumination changes, such as the popular houselight variation, are not necessary to produce interference in delayed matching to sample. Even with illumination held constant, however, performance was not differentially sensitive to the similarity between interference and sample stimulus wavelengths. It is suggested that other experiments showing similarity effects in interference of delayed matching to sample were conducted in such a way that subjects confused the interfering stimuli with the samples.  相似文献   

5.
The color-vision capacity of two species of procyonides was analyzed using a binary simultaneous discrimination paradigm. To make hue the only salient cue, the color sets of red, yellow, green, and blue were each presented in five different saturation intervals and were tested against a variety of brightness steps. Unlike the nocturnal kinkajous, the diurnal coatis showed highly significant discriminative performance on the color problems, especially in tests on blue and yellow, yet failed to differentiate unsaturated green from achromatic stimuli. The results are discussed with respect to procedural variables and the utility of color discrimination in the coati’s natural environment.  相似文献   

6.
To examine the development of look duration as a function of age and stimulus type, 14- to 52-week-old infants were shown static and dynamic versions of faces, Sesame Street material, and achromatic patterns for 20 s of accumulated looking. Heart rate was recorded during looking and parsed into stimulus orienting, sustained attention, and attention termination phases. Infants' peak look durations indicated that prior to 26 weeks there was a linear decrease with age for all stimuli. Older infants' look durations continued to decline for patterns but increased for Sesame Street and faces. Measures of heart rate change during sustained attention and the proportion of time spent in each phase of attention confirmed infants' greater engagement with the more complex stimuli.  相似文献   

7.
文章选取《水浒传》与《金瓶梅》重叠部分对金圣叹评点《水浒传》与张竹坡评点《金瓶梅》进行对比研究。主要分析二者评点在批评形式、批评风格、批评内容、批评文法以及批评主体情感意识上的异同,并探寻其中原因。可知金批集中于夹批处,而张批集中于眉批处;金批文风激情昂扬,而张批则平和中正;金批内容于文章处无所不入,而张批内容则多局限于文章人情物理;金批攀引甚多,经史子集无不入彀,而张批多随文下笔;金批多于文章细处着手,而张批却于文章大段精思处驻足。  相似文献   

8.
目前,幼儿分享行为研究主要集中在内涵、积极意义、现状、影响因素和培养策略上,研究存在一定的不足:定性研究多,定量研究少;经验总结多,个案研究少;重复研究多,创新研究少。研究者需进行更有针对性的研究,借鉴国外学者的研究经验,使幼儿分享行为的研究更加丰富。  相似文献   

9.
如果图G的正常边染色不包含2-色圈,则称它是图G的一个无圈边染色.图G的无圈边色数表示图G的无圈边染色所需的最小颜色数.为研究平面图的无圈边色数的上界,利用差值转移方法并结合平面图的结构性质,证明了不含相交三角形的平面图的无圈边色数不超过Δ(G)+7.  相似文献   

10.
Book reviews     

Post‐Secondary Distance Education in Canada: Policies, Practices, and Priorities. Edited by Robert Sweet. (Edmonton, Alberta: Athabasca University and the Canadian Society for Studies in Education, 1989, 272 pp., $15.95 Canadian.)

The Computer Revolution in Education: New Technologies for Distance Teaching. Edited by Ann Jones, Eileen Scanlon and Tim O'Shea. (New York: St. Martin's Press, 1987. 282 pp. $37.50)  相似文献   

11.
通过对湖北省某地方高校学生评价师德的数据统计分析发现,学生对教师师德表现整体评价较高,但对教师在关爱学生方面的评价和对青年教师的评价较低;学生年级、学生性别、专业类别、教师职称等因素对于学生的评价结果有显著影响,而教师性别、教师年龄、教师学位、评价人数、教师是否属于本学院等因素对于学生的评价结果并没有显著影响.加强和改进师德师风建设,要进一步完善评价机制,加强师德教育,强化青年教师的培养.  相似文献   

12.
With the rapid development of our country’s economy,the role and status of foreign trade is increasingly important.Trade structure is the foundation of a country’s foreign trade;the trade structure’s alteration is not only connected with the foreign trade,but also the economy development.Since the reformation and being open to the world,China’s foreign trade has developed steadily both in scale and structure.However,the structure of foreign trade imbalance has been plagued with a key factor in China’s foreign trade.Structure of foreign trade imbalance not only reflects the structure of China’s internal economic imbalances,but also affects our exports more competitive.In this paper,the theory will propose suggestions for the foreign trade China.  相似文献   

13.
容格的心理分析学受弗洛伊德精神分析理论的影响,但却比弗洛伊德的视野更为开阔,他把心理分析美学从弗洛伊德的自然主义领域拓展到了文化人类学的领域,用集体无意识改写与拓展了弗洛伊德的个体无意识,并对原型以及象征作出了自己独到的探讨,他的理论要比弗洛伊德的理论具有更丰富的美学内容与更明显的美学价值。  相似文献   

14.
图G的一个k全染色是用k种颜色对图G的顶点集和边集进行染色使得相邻接的或相关联的元素染不同的颜色,图G的全色数χ"(G)为图G的k-全染色中的最小k值.Behzad和Vizing猜想任意简单图G的全色数都不超过Δ(G)+2,已经证明了此猜想对最大度不是6的平面图成立,而且最大度不小于9的平面图G的全色数为Δ(G)+1.本文利用差值转移方法研究了最大度小于9的一些情况,证明了最大度为4,5,6,7,8的平面图G,如果其围长不小于8,则其全色数也为Δ(G)+1.  相似文献   

15.
消色差复合圆偏振器的优化设计   总被引:1,自引:0,他引:1  
提出了基于理想情况下以期望输出为设计起点的消色差复合圆偏振器的设计思路,并构建了消色差圆偏振器的优化设计模型,提出了基于遗传算法的宽带圆偏振起偏器的全局优化设计方法,并用这些方法设计了应用于红外波段的消色差圆偏振器.  相似文献   

16.
This paper addresses one of the challenges in human rights education (HRE) concerning the conceptualization of a pedagogical orientation that avoids both the pitfalls of a purely juridical address and a ‘cheap sentimental’ approach. The paper uses as its point of departure Richard Rorty’s key intervention on human rights discourse and argues that a more critical orientation of Rorty’s proposal on ‘sentimental education’ has important implications for HRE. This orientation is not limited to perspectives such as Rorty’s voyeuristic approach to sentimentality, but rather focuses explicitly on the emotional and political consequences of various manifestations of sentimentality. Such an orientation in HRE will not only encourage learners to become more sympathetic to the living realities of those who suffer, but it will also interrogate the conditions of hearing narratives of suffering so that possibilities for cheap sentimentality are minimized as much as possible.  相似文献   

17.
The stratification or dispersion of first grade teachers’ perceptions of children’s competence was evaluated as a moderator of the predictive relationship between teachers’ and parents’ perceptions of individual children’s competence. Classroom stratification of teachers’ perceptions about child intelligence and about child social difficulties was measured by the dispersion of teacher’s ratings of individual children in their class (Nclassrooms=60; Nchildren=1240). The stratification of teachers’ perceptions was found to be stable across the year. Greater stratification predicted teachers’ perceptions of less child competence and also predicted less change in teachers’ perceptions of individual children over the school year. There was no evidence that teachers who tended to see more stratification among child intelligence were more accurate in their perceptions. In linking teachers’ perceptions to parents’ perceptions, fathers’ perceptions of children’s social difficulties became more congruent with teachers’ perceptions across first grade if children were in high- but not low-stratified classrooms. Implications of this parent- and domain-specific relationship are discussed.  相似文献   

18.
赵连九 《天津教育》2021,(4):177-178
随着社会的发展,人们对于幼儿时期的教育越来越重视,然而由于早期的幼儿压根无法从文字中获取知识,只能依靠图画绘本来汲取知识,因此图片这种直观的表达对幼儿的阅读能力的培养至关重要,但这种静态的展现形式其实从本质上来说是不利于幼儿对文本的理解的,因为这个年龄段的孩子心智发展较为缓慢,对于文本中的深意难以理解,著名儿童教育家李吉林为了儿童心智的长期发展,从1978年就开始对情景教学展开探究,期望能提高幼儿的阅读效率。  相似文献   

19.
小说家刁斗在其长篇小说《我哥刁北年表》中通过对一个处在社会边缘的小人物刁北的50年人生轨迹的展示,侧面揭示了当代中国社会半个世纪以来的历史变迁。小说进而由此对人和体制之间千丝万缕的联系进行了较有意义的彰显和挖掘,揭秘了严肃表象下面的荒诞和滑稽,最终拷问的是整个人类生活和人类社会。小说的形式也富有意味,以"碎片"式的呈现和拼贴的方式在挑战了既有的完整式小说的同时,也刷新和校正了人们对小说观念、功能和使命的认识,充分展现了刁斗小说的先锋性。刁斗对人、人性、世界的洞察力要远比余华更为深邃、透彻和先锋。这是一部作者自己与自己进行精神对话、展开思想交锋的作品,在这里,作者对沧桑世事的纷繁思绪、对真实人性的敏锐洞察,借由不同人的口中道出,不同的腔调、复杂的声音相互交织碰撞,带给我们新异的感受。  相似文献   

20.
学习倦怠不仅会影响学习者自身发展,也会对整个班级乃至全校的学习风气产生影响。调查非英语专业本科生的英语学习倦怠情况,有利于教育者积极采取措施,避免情况恶化,树立良好的学习风气。通过对部分非英语专业本科生的调查发现:男生的学习倦怠明显高于女生,大二学生的学习倦怠明显高于大一学生,但文科生和理科生之间差异不明显。  相似文献   

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