Stichwort: Literalität — Schriftlichkeit     

Stephan?StingEmail author 《Zeitschrift für Erziehungswissenschaft》2003,6(3):317-337

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Angle-specific impairment of elbow flexors strength after isometric exercise at long muscle length     

Philippou A  Maridaki M  Bogdanis GC 《Journal of sports sciences》2003,21(10):859-865

In this study, we examined the long-term reductions in maximal isometric force (MIF) caused by a protocol of repeated maximal isometric contractions at long muscle length. Furthermore, we wished to ascertain whether the reductions in MIF are dependent on muscle length--that is, are the reductions in MIF more pronounced when the muscle contracts at a short length. The MIF of the elbow flexors of seven young male volunteers was measured at five different elbow angles between 50 degrees and 160 degrees. On a separate day, the participants performed 50 maximal voluntary isometric muscle contractions with the elbow flexors at a lengthened position; that is, with the shoulder hyperextended at 45 degrees and the elbow joint fixed at 140 degrees. Following this exercise, the MIF at the five elbow angles, range of motion, muscle soreness and plasma creatine kinase activity were measured at 24 h intervals for 4 days. On day 1, the decline in MIF was higher at the more acute elbow angles of 50 degrees (42 +/- 8%) and 70 degrees (39 +/- 8%; both P<0.01) than at 90 degrees (26 +/- 4%) and 140 degrees (16 +/- 3%; both P<0.01). No significant reduction in MIF was evident at an elbow angle of 160 degrees. Maximal isometric force at an elbow angle of 140 degrees was fully restored on day 3, whereas at an angle of 50 degrees it remained depressed for the 4 day observation period. Restoration of MIF was a function of the elbow angle, with force recovery being less at the smaller angles. The range of motion was decreased by 14 +/- 2 degrees on day 1 (P<0.01) and did not return to baseline values by day 4. Muscle soreness ratings remained significantly elevated for the 4 day period. Serum creatine kinase peaked on day 1 (522 +/- 129 IU, P<0.01) and decreased thereafter. We conclude that the disproportionate decrease in MIF at the small elbow angles and the length-specific recovery in MIF after repeated maximal isometric contractions at long muscle length may be explained by the presence of overstretched sarcomeres that increased in series compliance of the muscle, therefore causing a rightward shift of the force-length relationship.  相似文献   

金圣叹是“并非反抗的叛徒”还是“清议运动的代表”--试比较鲁迅与胡适的批评     

蒋成德 《徐州教育学院学报》2003,18(1):44-49,53

金圣叹是历史上一个思想比较复杂的人物。肯定者有之,否定者亦有之。文章把二十世纪初鲁迅与胡适的批评放在一起加以比较,从“哭庙案”事件、晚明的“清议运动”和金圣叹的思想等历史的实际情况进行考察,认定金圣叹“并非反抗的叛徒”,也非“清议运动的代表”,他只是一个有“名士”气的才子而已。  相似文献   

20世纪60-70年代新博物馆运动思想和"生态博物馆"用词和概念的起源   总被引：3，自引：0，他引：3  

雨果·戴瓦兰  张晋平 《中国博物馆》2005,(2):36-38

本回顾了20世纪60-70年代新博物馆运动思想和“生态博物馆”概念的源起，对于我们从国际大背景下深入理解生态博物馆这一新兴博物馆形态有所帮助。  相似文献   

The communication flow of research projects results     

Daniela Luzi  Maria Castriotta  Rosa Di Cesare  Luciana Libutti  Mariaosaria Manco 《Publishing Research Quarterly》2004,20(1):13-24

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散打课运动损伤产生的原因及预防   总被引：5，自引：0，他引：5  

范谋德 《福建体育科技》2002,21(3):54-55,58

通过对福建公安高等专科学校 2 0 0 0级二大队在散打普修课结束后的问卷调查 ,对运动损伤数据进行统计、分析 ,结果表明散打课的运动损伤具有“小外伤多 ,严重损伤少”的特点 ,从损伤部位看以小腿 (包括膝关节 )和足趾部的挫伤、碰伤发生率较高 ,在此基础上 ,论述了预防、减少散打课运动损伤的几种方法。  相似文献   

Euclidean Geometry in Two Medieval Islamic Encyclopaedias     

Gregg de Young 《Al-Masaq: Islam & the Medieval Mediterranean》2002,14(1):47-60

Two early encyclopaedic treatises, written in Arabic, include extensive discussion of geometry. Although both the Rasā'il Ikhwān al-Safā' and the Kitāb al-Shifā' fall within the Euclidean tradition, their style and content differ radically. The Neo-Pythagorean and Neo-Platonic Ikhwān al-Safā' place mathematics at the head of their encyclopaedia, but develop their discussion of geometry using a "sub-Euclidean" approach. Ibn Sīnā, whose orientation is broadly Aristotelian, includes an epitome of Euclid's Elements in its entirety, yet modifies the text at numerous points.  相似文献   

Academic mathematics and mathematical knowledge needed in school teaching practice: some conflicting elements   总被引：1，自引：0，他引：1  

Plinio C. Moreira  Maria M. David 《Journal of Mathematics Teacher Education》2008,11(1):23-40

In this article we analyze the relations between academic mathematical knowledge and the mathematical knowledge associated with issues mathematics school teachers face in practice, according to the specialized literature, and restricted to the theme “number systems”. We present examples that illustrate some areas of conflict between those forms of knowledge. We point out some implications of our study for teacher education, such as: 1) the importance of making conflicts explicit and of discussing them with prospective teachers in order to develop a professionally relevant perception of academic mathematics; 2) the relevance of further research in order to better understand the extent of those conflicts and their effects on the process of integrating, in a body of professional knowledge, the different kinds of mathematical knowledge presented to prospective teachers.

Plinio C. MoreiraEmail: Email:

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Recent Books in the Field of Public Opinion Research     

de Boer  Connie 《Int. Journal of Public Opinion Research》2008,20(1):114-120

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Dynamic profiles and predictive values of some biochemical and haematological quantities in COVID-19 inpatients     

María Jos Castro-Castro  Laura García-Tejada  Ariadna Arbiol-Roca  Lourdes Snchez-Navarro  Loreto Rapún-Mas  Isabel Cachon-Surez  Marta lvarez-lvarez  Dolors Dot-Bach  Roser Güell-Mir  Anna Corts-Bosch de Bassea  Macarena Dastis-Arias  Ana Sancho-Cerro  Noelia Díaz-Troyano  Teresa Escartín-Diez  Diego Muoz-Provencio  Rosa Navarro-Badal 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2022,32(1)

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