现代汉语中"子"的作用

“子”在汉语中出现的频率极高，它是一个组词能力非常强的具有语法意义的名词词缀。名词后缀“子”蕴涵着极其丰富的化内容，它不仅有满足结构要求的作用，还有构成语形、区别词义、转换词性和表达情感色彩等作用。     

The use of microcomputer technology in a modular approach to reading and reading difficulties

This paper outlines the theoretical framework of a two-year two cohort study of inter-related modules to model reading in 300 grades 4, 5 and 6 readers, and describes the specially designed microcomputer programs written in Turbo Pascal to implement this modular approach. In brief, the modular approach postulates the interrelated phonological, morphological modules in processing words and sentence/paragraph processing. These three modules or components are subserved by 10 measurable tasks all implemented on the microcomputer (IBM-PC compatible) with reaction time measures as indices of the different facets of verbal efficiency. Statistical analyses of the large data sets for Phase 1 show the linear structural equation modelling fits the data reasonably well. In particular, the morphology task consistently explains between 32% to 44% of the variance in reading performance in the three grades. The findings lend themselves to specific approaches to habilitation in the different components or sub-components.This study was supported by a grant (No. 410-86-0048) from the Social Sciences and Humanities Research Council of Canada awarded to Che Kan Leong. Simon Lock and Jacky Lau were responsible for the microcompurter programming. Edward Danskin, Melvin Kelley, Donald Simmons, Louise Sellinger, Kristin Strauss and Tara Wiley carried out the experimentation with individual children in the schools. The cooperation of the principals, the teachers and the subjects was greatly appreciated. Requests for reprints should be addressed to Dr. C. K. Leong, Department for the Education of Exceptional children, University of Saskatchewan, Saskatoon, Canada, S7N OWO.     

韭菜花蜜腺的发育解剖学研究

通过解剖镜、扫描电镜和石蜡制片等方法对韭菜花蜜腺的形态结构、位置和发育过程进行了研究。其花蜜腺类型为子房蜜腺中典型的隔膜蜜腺，并属于结构蜜腺，由分泌表皮和产蜜组织构成，不包含维管束。在开花前后，蜜腺组织中的细胞内液泡大小，蛋白质含量都发生了有规律的变化，根据其结构及其变化特点分析了其泌蜜途径。     

一种基于形态学强光束下的水下激光目标检测算法

章采用数学形态学运算子对强光束下的水下激光图像进行处理，以去除强光束对目标检测的干扰，在此基础上采用直方图谷低值作为阈值对处理后的图像进行二值化，从而迅速得到目标图像，实现目标检测，实验证明这是一种快速有效的目标检测算法。     

庐山地质地貌景观多样性及其保护

庐山地质地貌景观类型具多样性特征，大致可分为：气候景观、气象景观、孑遗植物景观、河流景观、湖泊景观、地层景观、构造景观、地貌景观等类型。笔者建议对这些景观采取保护措施。     

辩证法理论研究综述文学研究

辩证法是人们耳熟能详的范畴，也是常述常新的问题。辩证法的性质即哲学的性质，故对辩证法问题的探讨本质上是一个哲学观问题。当前，关于辩证法是什么以及辩证法同形而上学的关系问题为学界所热衷，但也歧义纷呈。如何划分辩证法的理论形态、坚持对辩证法的科学态度制约着辩证法理论研究的旨归．     

Developmental dyslexia,neurolinguistic theory and deviations in brain morphology

Although some form of central nervous system involvement is presumed, evidence establishing a relationship between dyslexia and neurological dysfunction has been correlational. Recently, neuroimaging and postmortem studies have begun to provide direct evidence implicating neuropathological structures in dyslexia. This article reviews computed tomography (CT) and magnetic resonance imaging (MRI) studies examining deviations in brain morphology which appear to be associated with neurolinguistic functioning. Methodological and technical issues are discussed. Based on their own and others research, the authors conclude that dyslexics show variations in specific brain regions, namely, reversed or symmetrical plana temporale (LR), smaller insular length bilaterally, and symmetrical frontal regions. Moreover, recent studies by the senior author and colleagues suggest that specific reading tasks are associated with specific variations in brain morphology. Symmetrical frontal widths was related to poorer passage comprehension, and reversed frontal area symmetry was related to poor word attack skills. Though many conceptual and technical issues remain unresolved, neuroimaging procedures appear to provide direct evidence supporting the importance of deviations in normal patterns of brain morphology in dyslexia.     

不同四棱豆品种豆荚比较形态学研究

以四棱豆豆荚长、宽、高、豆夹宽高比、豆粒百粒重、每个豆荚豆粒数及豆荚特异性形状等指标为依据,对不同的四棱豆品种进行形态学研究,比较不同品种之间的亲缘关系.研究方法操作性强,结果可靠,对今后四棱豆的品种选育有重要的指导意义.     

豚鼠主动脉前庭组织自律性的电生理学和形态学研究

利用细胞内微电极技术和组织学技术,对82只琢鼠主动脉前庭的自发电活动和13例该部组织的形态学特征进行了观察和分析。结果发现,在82例该组织的游离标本上,有16例(19.5％)可自行出现自律性电活动;61例(74.4％)在电刺激诱导下也可出现自律性电活动。在主动脉前庭大部分区域记录到的自发电位,其形态与普通心室肌的动作电位基本相同,属快反应电位。而在主动脉瓣右瓣与后瓣交界处以下约2.0×1.5mm区域内的表疲疲部位,可记录到0相去极化缓慢、幅值较小,且4相自动去极化明显的动作电位,其形态与慢反应自律细胞的动作电位十位相似。肾上腺素可使其频率增快;钙拮抗剂硝苯吡啶、Mn~(2十)可阻断其自律性电活动。而且上述大部分区它归快反应电位随此慢反应电位的节律而变化,并随其被阻断而消失。说明在主动脉前庭的局部存在有慢反应自律细胞,其的部位的自发节律系由该部引起。经光镜和电镜观察,该部组织与普通心肌有明显不同,而与慢反应自律组织的结构相似。本实验提示:在发生上由动脉球变化而来的主动脉前庭部组织,先保持有自律性等与普通心室肌不同的电生理特征。因而在心脏泵血过程中,可能具有某些特殊功能。     

加工过程中高分子材料形态控制的研究进展

高分子材料的性能不仅依赖于大分子的化学结构和链结构，而且在 很大程度上依 赖于结晶、取向形态及多相体系的相形态。开展高分子材料在加工过程中的热、应力场作用 下形态形成、演化、调控及“定构”研究对发展高分子成型加工基础理论、开发高性能化、 复 合化、多功能化、低成本化及清洁化高分子材料有重要意义。本文简述了加工过程中高分子 材料形态控制的研究进展，包括国内外研究现状、存在的问题和我国的差距及未来研究的重 要科学问题。