Study on<Emphasis Type="Italic">Bombyx mori</Emphasis> silk treated by oxygen plasma     

Chen?Yu-yueEmail author  Lin?Hong  Ren?Yu  Wang?Hong-wei  Zhu?Liang-jun 《浙江大学学报(A卷英文版)》2004,5(8):918-922

Study of the morphology, aggregation structure and properties ofBombyx mori silk treated by low temperature oxygen plasma showed that slight flutes appeared on the surface ofBombyx mori silk fiber and that its surface structure changed after plasma treatment. The conformation also changed and crystalline degree decreased. The stannic filling rate of treated fiber was improved. Because of etching, the weight of the fiber decreased but the breaking strength changed little after short-time treatment. Project (No. 50073013) supported by the National Natural Science Foundation of China  相似文献   

The role of derivational morphology in the reading comprehension of Spanish-speaking English language learners     

Michael J. Kieffer  Nonie K. Lesaux 《Reading and writing》2008,21(8):783-804

This study examined the relationship between morphological awareness and reading comprehension in English among Spanish-speaking English language learners (ELLs) followed from fourth through fifth grade. Students’ ability to decompose derived words while reading was assessed using an experimental task. Multiple regression analyses were used to investigate the contribution of performance on this task to reading comprehension above and beyond word reading skills, phonological awareness, and breadth of vocabulary knowledge. The relationship between morphological awareness and reading comprehension was found to strengthen between fourth and fifth grade, and in fifth grade, morphological awareness was found to be a significant predictor of reading comprehension. The findings were robust across two measures of reading comprehension and two methods of scoring the experimental task of morphological awareness, and thus support the inclusion of derivational morphology in a model of the English reading comprehension of Spanish-speaking ELLs.

Michael J. KiefferEmail:

  相似文献   

Explicit instruction in orthographic structure and word morphology helps Chinese children learn to write characters   总被引：2，自引：0，他引：2  

Jerome L. Packard  Xi Chen  Wenling Li  Xinchun Wu  Janet S. Gaffney  Hong Li  Richard C. Anderson 《Reading and writing》2006,19(5):457-487

Previous research in alphabetic languages had shown that children learning to write are sensitive to morphological information, and that it serves as a resource that they draw upon as they acquire writing skills. In Chinese as well, sensitivity to morphological and orthographic information had been found to predict children’s ability to read characters. The present study investigated whether raising children’s awareness of the morphemic and orthographic structure of Chinese words would lead to beneficial results in their learning to write Chinese. An experimental group of 144 first graders from two primary schools in Beijing, China were given instruction designed to increase their knowledge of the orthographic and morphological structure of Chinese words. After two semesters, the experimental group’s ability to copy Chinese characters and to write them from memory were both found to be significantly better than a control group. Theoretical implications are discussed, including how writing benefits from the types of linguistic knowledge that underlie lexical storage and retrieval in reading and speech. Educational implications are also discussed, such as how drawing children’s attention to the morphemic components of Chinese words and the systematic features of Chinese orthography provides them with multiple sources of information they may utilize in learning to write.  相似文献   

Pinch my wig or winch my pig: Spelling,spoonerisms and other language skills     

Allyn  Frances A.  Burt  Jennifer S. 《Reading and writing》1998,10(1):51-74

Phonological processing skills have often been assumed to play a minimal role in skilled adult spelling despite evidence showing their importance in the development of spelling skills. The present study investigated the relationship between phonological awareness and spelling in adults. It was hypothesised that subjects demonstrating higher levels of spelling proficiency would also show superior phonological processing skills. This relationship was expected to be mediated by sound-spelling mapping knowledge. Given the irregularities of sound-spelling correspondences in English, it was also predicted that knowledge of orthographic conventions would be related to spelling competency. Two measures of each component skill were used on seventy three university students. As predicted, the importance of spelling-sound mapping skills in spelling were demonstrated, as was a relationship between phonological awareness and spelling-sound correspondences. In addition a moderate correlation was found between orthographic tasks and spelling performance. It was concluded that, among university students at least, phonological ability makes an important contribution to skilled adult spelling.  相似文献   

Effects of nanofibers on mesenchymal stem cells: environmental factors affecting cell adhesion and osteogenic differentiation and their mechanisms     

Yu  Dan  Wang  Jin  Qian  Ke-jia  Yu  Jing  Zhu  Hui-yong 《Journal of Zhejiang University. Science. B》2020,21(11):871-884

Journal of Zhejiang University-SCIENCE B - Nanofibers can mimic natural tissue structure by creating a more suitable environment for cells to grow, prompting a wide application of nanofiber...  相似文献   

Roots and patterns in Hebrew language development: evidence from written morphological analogies   总被引：1，自引：0，他引：1  

Dorit Ravid  Rachel Schiff 《Reading and writing》2006,19(8):789-818

Morphology is one of the organizing principles of the mental lexicon. It is especially important in Hebrew, where word structure expresses a rich array of semantic notions. This study investigated the ability of Hebrew-speaking children to solve written morphological analogies by reading and completing two sets of real and invented root- and pattern-related nouns using a closed set of responses. In the first experiment, 152 gradeschoolers (2nd–6th grade) were administered an analogy task with real words, where they had to read written stimuli and elicit root and pattern components from them. In the second experiment, 148 gradeschoolers were administered a similar reading task with pseudowords. In both experiments, the results clearly indicate an early and robust ability of Hebrew-speaking children to perform morphological analogies using both roots and patterns. Most errors involved the root morpheme rather than the pattern morpheme, but pseudowords elicited more pattern errors. These results are discussed in view of models of morphological processing and morpho-lexical development in Hebrew.  相似文献   

Study on Bombyx mori silk treated by oxygen plasma     

陈宇岳  林红  任煜  王红卫  朱良均 《Journal of Zhejiang University. Science. B》2004,(8)

INTRODUCTION B. mori silk produced by cultivated silkwormis a textile fiber highly appreciated for its out-standing properties (handle, luster, comfort). Inrecent years there has been an increasing interest inexploiting low-temperature plasma treatment (LTP)of textile fibers. Low-temperature plasma treatment is an en-vironmental friendly technique for modifying thefibers surface to improve surface wettability(Molina et al., 2003), shrink resistance (Jin and Dai,2002), interf…  相似文献   

从"时代的意义"到"刚道的人格型"--"战国策派"文化反思     

魏小奋 《首都师范大学学报(社会科学版)》2004,1(4):65-68

战国策派 ,抗战语境中的文化流派。借助“历史形态学”提供的历史观和方法论 ,该派认为 ,西方文化的根本精神是以“地缘国家”为归属 ,“个性焕发”、“国命整合”为基本内容的民族主义。改造中国文化 ,就在于吸收浮士德无限进取的精神 ,呼唤英雄主义 ,改造国民性。笔者提炼了该派学说的基本理念 ,认为其学术性格中对“时代的意义”的强烈关注 ,以及广阔视野的“理想主义”值得学界重视。  相似文献   

从英汉对比的角度赏析文学作品的翻译——以王佐良《论读书》译文为例   总被引：1，自引：0，他引：1  

余涛 《安徽科技学院学报》2008,22(4)

本文分析了英国十六世纪文学家培根的<论读书>的文体特征,简要介绍了我国翻译家王佐良的译学主张,并重点从词法包括名词、介词和代词及句法包括形合与意合、省略与重复方面分析了王佐良译文的特点.  相似文献   

Emergence of morphographical markers in written French: what children following a special education programme say about plurals     

George F. Hoefflin 《欧洲特需教育杂志》2013,28(2):107-122

Research conducted with average apprentice writers demonstrated that the main difficulty they are facing in the acquisition of written French is the acquisition of the morphology of the writing system, hence studies with slow writers show that morphological traces are late to emerge and often fail to meet the grammatical demands of French. This exploratory research conducted with slow mono- and multilingual learners attempts to identify the qualitative aspects of the emergence of morphological traces, which in the written French system are most often mute. The linguistic concept of the plural was therefore chosen not simply to observe the appearance of plural grammatical markers in productions, but also in order to stimulate apprentice writers to give so-called ‘metagraphical explanations’ in other words, they were asked to explain verbally their own written productions. We observed the written productions and the metagraphical explanations of the participants irrespective of whether these were standard or non-standard written productions. The results show that the verbal explanations, rather than being related to the grammatical case of plural, for the participants frequently refer to their concrete knowledge of number. The fact that these slow learners possess general cognitive abilities which are substantially more developed than their linguistic abilities suggests that the processes used to acquire the linguistic notion of plural in French are based on structures established by analogy, taking their roots in a cognitive notion of number which seems common to all apprentice writers.  相似文献