燕京大学学位论文的印本收藏与特色库建设

北京大学图书馆藏有燕京大学学位论文(以下简称燕大学位论文)印本特藏2 700余册。燕大学位论文分类排架体系有其自身特点,馆藏号由四级结构组成,论文本身具有很高的学术研究价值和文物收藏价值。目前燕大学位论文特色库已建成并正式发布,但界面显示、检索和著录等方面存在一些问题,仍有待完善。高校图书馆应加强印本资源的保存和管理以及特色数据库的建设和质量控制。     

Librarians' responses to “reading at risk”: A Delphi study

This study surveys librarians' reactions to the National Endowment for the Arts (NEA) report on “Reading at Risk”. Using census data, the NEA concluded that there has been a drastic decline in “literary” reading and it is most sharply pronounced in the youngest group surveyed. To determine whether librarians' perceptions of reading, especially among youth, were consistent with the NEA findings, a Delphi study was conducted. Eleven youth library professionals and educators, identified as experts, responded to survey questions probing whether digital media impact leisure time reading for both adults and adolescents; whether reading is at risk; and whether the decline in literary reading foreshadows erosion in cultural and civic participation. Library experts tended to agree with the effects of digital media on leisure time reading for children. Experts were split on how digital media impact leisure time reading among adult readers. They were closely aligned against the assertion that participation in literary reading foreshadows participation in cultural and civic participation.     

拓片及其装帧与装裱

拓片是一种特殊的文献形式.本文就拓片的各种传拓方法、拓片的品种以及装帧形式作了比较详细的归纳和叙述,并对传统装裱形式的优缺点进行了分析.     

Kinematics and kinetics of the drive off the front foot in cricket batting

A cinematographic analysis of the drive off the front foot (D) and the forward defensive stroke (FD) was undertaken to establish the kinematic and kinetic factors involved in playing these strokes against medium-fast bowling. Fourteen provincial cricket batsmen were filmed at 100 Hz while batting on a turf pitch with a specially instrumented bat. Results for the drive off the front foot revealed that the movement and stroke pattern were generally supportive of the coaching literature, with the forward defensive stroke forming the basis of the drive. Certain mechanical differences, although non-significant, were evident to facilitate the attacking nature of the front foot drive and included a higher backlift (FD = 0.65 m; D = 0.74 m), later commencement of the stride (FD = 0.64 s pre-impact; D = 0.58 s pre-impact) and downswing of the bat (FD = 0.38 s pre-impact; D = 0.36 s pre-impact), a shorter front foot stride (FD = 0.72 m; D = 0.68 m) with the front foot placement taking place later (FD = 0.14 s pre-impact; D = 0.06 s pre-impact), and the back foot dragging further forward at impact (FD = 0.05 m; D = 0.10 m). The front upper limb moved as a multi-segmental series of levers, which resulted in the drive showing significantly greater (P < 0.05) peak bat horizontal velocity at 0.02 s preimpact (FD = 3.53 ± 3.44 m . s -1 ; D = 11.8 ± 4.61 m . s -1 ) and 0.02 s post-impact (FD = 2.73 ± 2.88 m . s -1 ; D = 11.3 ± 4.21 m . s -1 ). The drive showed a significantly greater (P < 0.05) bat-ball closing horizontal velocity (FD = 24.2 ± 4.65 m . s-1; D = 32.3 ± 5.06 m . s -1 ) and post-impact ball horizontal velocity (FD = 6.85 5.12 m . s -1 ; D = 19.5 ± 2.13 m . s -1 ) than for the forward defensive stroke. The point of bat-ball contact showed nonsignificant differences, but occurred further behind the front ankle (FD = 0.09 ± 0.17 m; D = 0.20 ± 0.13 m), with the bat more vertical at impact (FD = 62.6 ± 6.53 ; D = 77.8 ± 7.05). Significant differences (P < 0.01) occurred between the grip forces of the top and bottom hands for the two strokes, with the principal kinetic finding that the top hand plays the dominant role during the execution of the drive with the bottom hand reinforcing it at impact. Similar grip force patterns for the two strokes occurred during the initial part of the stroke, with the drive recording significantly greater (P < 0.05) forces at 0.02 s pre-impact (top hand: FD = 129 ± 41.6 N; D = 199 ± 40.9 N; bottom hand: FD = 52.2 ± 16.9 N; D = 91.8 ± 41.1 N), at impact (top hand: FD = 124 ± 29.3 N; D = 158 ± 56.2 N; bottom hand: FD = 67.1 ± 21.5 N; D = 86.2 ± 58.2 N) and 0.02 s postimpact (top hand: FD = 111 ± 22.2 N; D = 126 ± 28.5 N; bottom hand: FD = 65.5 ± 26.9 N; D = 82.4 ± 28.6 N).     

学校体育改良少数民族传统体育项目的研究

少数民族传统体育项目引入学校体育后,必须运用学校体育相关知识对少数民族传统体育项目进行科学改良,才能实现学校体育与少数民族传统体育的良性发展。文章通过阐述学校体育与少数民族传统体育的关系,对学校体育改良少数民族传统体育项目提出合理化建议。     

对排球考试指标权重的比较与研究

本文通过对我院体育系排球普修课考试资料的研究,把排球考试的一级指标和技术所辖指标进行了分析比较,发现指标权重的不稳定直接影响了考试成绩的可靠性,各项技术权重的大小应该有明显的区分。结合我院体育系排球普修课的总体水平,提出了确定体育系排球普修课考试权重的参考数据。     

我国与世界优秀女子七项全能选手成绩的比较研究

采用文献资料法、数理统计法和比较法,对我国与世界优秀女子七项全能运动员成绩进行对比分析.结果表明我国女子七项全能在经过发展和提高之后正处于滑坡阶段,我国与世界优秀女子七项全能选手相比,无论在总成绩还是在单项上均存在较大差距,而快速力量性项目(跳远、标枪、铅球)尤为明显.     

论体育与城市文化建设

城市文化建设对于一个城市的发展而言至关重要,而体育在城市文化建设中又扮演着非常重要的角色。城市可以通过发展体育这条途径来推动城市文化建设,从而最终促进城市的发展。     

从规则变化探析我国女子体操08奥运训练对策

通过文献资料法、录像分析法、专家访谈法,从2006年国际体操评分规则变化探析我国女子体操训练对策,旨在为我国女子体操备战2008年北京奥运会提供一点参考依椐。