我国图书馆书目数据库的数据特征分析与检索方式扩展研究

从分析当前书目数据库的特征入手，依次对题名、主题、分类号等项目的数据质量和标引特征进行分析，得出在现有的书目数据质量情况下，几乎没有一条提高查全率和查准率的综合性检索途径的结论。针对现状，指出提高书目数据库检索效果和检索精度的必要性，并对如何提高检索质量的问题进行研究，研究内容包括检索语言兼容性和检索方法的扩展性，并为提高书目数据检索的综合质量、增加书目检索系统的开放性探索提供方案。     

短跑运动员王能希髋摆动技术改进对百米成绩的影响

采用文献资料法、实验法和对比分析法等研究方法,通过对现役运动员王能希的历时两年跟踪调查研究,拍摄其途中跑的影像资料并进行解析,取得其运动学数据。通过对比分析数据的变化来剖析髋关节摆动技术对短跑成绩的影响。     

交通广播竞技论——以北京交通台为例

在媒体专业化的发展趋势下,以"广播+交通"为栏目模式、以"服务为王"为播出理念的交通广播形式,逐渐成为媒体竞争中的一匹黑马.在全国近80家省、市级交通频率中,北京人民广播电台交通广播台率先实行机制改革,着力品牌构建,有效延伸自身产业链,最终成为交通广播中公认的领跑者.本文以北京交通广播为例,对交通广播的品牌构建、产业链延伸及未来发展策略等方面做出了详细分析与深入讨论,并指出加强自身优势的深度开掘,结合互联网思维实行传统媒体和新媒体的共同发展将是交通广播未来竞技中的发展方向.     

社会贫富差距扩大的深层原因分析

社会贫富差距扩大的原因与政府的税收调节、转移支付、社会保障和公共服务等不到位有很大的关系,但深层原因却在于我国消费严重不足、主要依靠固定资产投资和外贸出口推动经济增长的发展方式.这种经济增长方式带来了创业不足、农村剩余劳动力转移过慢、城镇失业率较高的问题.这种由生产领域中资本和劳动要素结构的扭曲,劳动闲置和企业结构畸形导致的基础性的分配不公,很难以国家财政的再分配来进行纠正,而改变经济增长方式才是根本性的.     

语文教学中开发学生潜能的方法初探

语文教学是以文化知识教育和人文精神熏陶为主要内容的教学,蕴含着潜在的教育价值,是开发学生潜能的土壤。语文教学开发学生的潜能必须从学生的主体观出发,高度重视学生的主动性、创造性。     

扩展Authorware的功能

多媒体开发平台Ａｕｔｈｏｒｗａｒｅ提供了与外部程序通讯的接口,使得对它的扩展成为可能,本文探讨了通过调用ＷｉｎｄｏｗｓＡＰＩ把Ａｕｔｈｏｒｗａｒｅ的功能推向极点。     

论传记电影的完整镜像

通过电影镜像理论的探讨,提出西方优秀传记电影是更加完整的镜的观点。西方优秀传记电影的真实性、精神多层次性和解放性,成为其更完整的镜的三个维度。传记电影的观影体验可以延伸到现实之中,传主形象成为可以触摸的东西,传记电影具备深刻的心理属性,这些都是传记电影和普通电影的不同,导致西方优秀传记电影成为了深富人文价值和美学含量的电影形态。     

Bringing back sweet (and not so sweet) memories: the cultural politics of memory,hip‐hop,and generational identities

This article examines the salience of collective ‘memory’ and ‘remembering’ among a group of students in Hip‐Hop Lit, a hip‐hop centered English literature course that I co‐taught at ‘Howard High School,’ an urban high school in the Northeastern United States. Specifically, this article examines the memory work that occurred within Hip‐Hop Lit in response to the students’ interactions with one of the course texts, Things Done Changed by rapper Notorious B.I.G. From this and other classroom texts, students were able to construct, contest, and reinscribe memories about the past. Through these memories, students were able to reaffirm and challenge particular social identities that informed and reflected their lived experiences.     

Acute and sub-acute effects of repetitive kicking on hip adduction torque in injury-free elite youth soccer players

Abstract

Hip adduction strength is important for kicking and acceleration in soccer players. Changes in hip adduction strength may therefore have an effect on soccer players’ athletic performance. The purpose of this study was to investigate the acute and sub-acute effects of a kicking drill session on hip strength, concerning isometric hip adduction, abduction and flexion torque of the kicking leg and the supporting leg. Ten injury-free male elite soccer players, mean ± s age of 15.8 ± 0.4 years participated. All players underwent a specific 20 min kicking drill session, comprising 45 kicks. The players were tested the day before, 15 min after and 24 h after the kicking drill session by a blinded tester using a reliable test procedure. The isometric hip-action and leg-order were randomized. For the kicking leg, hip adduction torque increased from 2.45 (2.19–2.65) Nm ? kg^?1, median (25th–75th percentiles), at pre-kicking to 2.65 (2.55–2.81) Nm ? kg^?1 (P = 0.024) 24 h post-kicking. This may have implications for the soccer player’s ability to maximally activate the hip adductors during kicking and acceleration, and thereby improve performance the day after a kicking drill session.     

Isokinetic imbalance of hip muscles in soccer players with osteitis pubis

Abstract

In this study, we compared the isokinetic torques of hip flexors/extensors and abductors/adductors in soccer players suffering from osteitis pubis (OP), with normal soccer players. Twenty soccer male athletes with OP and 20 normal soccer athletes were included in this study. Peak torque/body weight (PT/BW) was recorded from hip flexor/extensor and abductor/adductor muscles during isokinetic concentric contraction modes at angular velocity of 2.1 rad · s^?1, for both groups. The results showed a significant difference between the normal and OP groups for hip flexors (P < 0.05). The normal group had significant, lower PT/BW value than the OP group for their hip flexors (P < 0.05). The hip flexor/extensor PT ratio of OP affected and non-affected limbs was significantly different from that of normal dominant and non-dominant limbs. There were no significant differences between the normal and OP groups for hip extensor, adductor and abductor muscles (P > 0.05). Regarding the hip adductor/abductor PT ratio, there was no significant difference between the normal and OP groups of athletes (P > 0.05). The OP group displayed increase in hip flexor strength that disturbed the hip flexor/extensor torque ratio of OP. Therefore, increasing the hip extensor strength should be part of rehabilitation programmes of patients with OP.