英语报刊标题的特点与翻译

随着社会日新月异的发展 ,现代英语的涵盖范畴也在发生一日千里的变迁。英语报刊集现代英语之大成 ,阅读英语报刊不失为接触现代英语脉搏的一条事半功倍的捷径。英语报刊标题提纲挈领 ,最富有英文特色 ,是整个报刊的精华部分。了解英语报刊标题的特点并掌握相应的翻译方法和技能 ,有助于英语学习者更好地理解报刊内容 ,跟上现代英语的发展步伐和提高英语的表达能力     

搜索引擎对网络信息资源的文献控制方法研究

搜索引擎是二次文献在环境下的应用与发展，它融合了传统的文献控制理论与计算机情报检索技术。本文主要从文献控制的角度介绍了搜索引擎对分类法、主题法以及分类主题一体化的应用与发展，并提出了搜索引擎功能优化的几种途径。     

关于"立党为公、执政为民"问题的研究综述

“立党为公、执政为民”是党新时期各项工作的根本宗旨，文章就其提出的背景、形成过程、科学内涵、意义问题及实现途径作以综述。并指出了在理论上需要进一步研究的问题，     

机读数据中主题标引若干歧义问题探讨

在套入ＣＮＭＡＲＣ格式提供的主题分析字段时,中国国家机读目录数据对下列问题的处理值得商榷：主题分析块主题标引模式,专有名称作主标题的标引方式,对年鉴的“时间因素（Ｄ）”的理解,个人文集、选集、全集的主题标引     

Effectiveness and time-course adaptation of resistance training vs. plyometric training in prepubertal soccer players

PurposeThis study aimed to assess the effectiveness and time course for improvements in explosive actions through resistance training (RT) vs. plyometric training (PT) in prepubertal soccer players.MethodsThirty-four male subjects were assigned to: a control group (n = 11); an RT group (5 regular soccer training sessions per week, n = 12); a PT group (3 soccer training sessions and 2 RT sessions per week, n = 11). The outcome measures included tests for the assessment of muscle strength (e.g., 1 repetition maximum half-squat test), jump ability (e.g., countermovement jump, squat jump, standing long jump, and multiple 5 bounds test), linear speed (e.g., 20 m sprint test), and change of direction (e.g., Illinois change of direction test).ResultsThe RTG showed an improvement in the half-squat (Δ = 13.2%; d = 1.3, p < 0.001) and countermovement jump (Δ = 9.4%; d = 2.4, p < 0.001) at Week 4, whereas improvements in the 20-m sprint (Δ = 4.2%; d = 1.1, p < 0.01); change of direction (CoD) (Δ = 3.8%; d = 2.1, p < 0.01); multiple 5 bounds (Δ = 5.1%; d = 1.5, p < 0.05); standing long jump (Δ = 7.2%; d = 1.2, p < 0.01); squat jump (Δ = 19.6%; d = 1.5, p < 0.01); were evident at Week 8. The PTG showed improvements in CoD (Δ = 2.1%; d = 1.3, p < 0.05); standing long jump (Δ = 9.3%; d = 1.1, p < 0.01); countermovement jump (Δ = 16.1%; d = 1.2, p < 0.01); and squat jump (Δ = 16.7%; d = 1.4, p < 0.01); at Week 8 whereas improvements in the 20-m sprint (Δ = 4.1%; d = 1.3, p < 0.01); and multiple 5 bounds (Δ = 7.4%; d = 2.4, p < 0.001); were evident only after Week. The RT and PT groups showed improvements in all sprint, CoD, and jump tests (p < 0.05) and in half-squat performance, for which improvement was only shown within the RTG (p < 0.001).ConclusionRT and PT conducted in combination with regular soccer training are safe and feasible interventions for prepubertal soccer players. In addition, these interventions were shown to be effective training tools to improve explosive actions with different time courses of improvements, which manifested earlier in the RTG than in the PTG. These outcomes may help coaches and fitness trainers set out clear and concise goals of training according to the specific time course of improvement difference between RT and PT on proxies of athletic performance of prepubertal soccer players.     

异步教学在足球选项课教学中的模式研究

足球选项课已经成为大学体育课程中的重点课程之一,让学生获得运动的乐趣和成功的喜悦是学校体育课的目的之一,然而,由于身体素质和主观学习意识的努力程度上的不同,决定了同一个班级的学生在体育知识、技能和技巧的学习上,存在明显的个体差异,但是传统教学已经无法满足现在体育教学的需要。新课程异步教学法是在实施素质教育中探索出来的一种新的教学方法,是一种以学情为根据的、能将学生的个体学习、学生的群体学习与老师的异步指导统一在一个教学过程中进行的、以学生的个体学习为基础的现代教学模式。     

普通高校足球选项课的教学环境对技术学习影响因素研究

文章运用文献资料研究方法、调查问卷法、逻辑分析法等研究方法,通过对山西省部分普通高校参加足球选项课的男生进行问卷调查,分别从班级规模、学习氛围、教学设施、季节气候等方面的教学环境进行调查并分析其影响因素,以期为提高学生对技术学习过程的认识、改善已有的教学观念、改进教学方式、优化普通高校足球选项课中技术教学过程提供参考依据。     

集控式足球机器人视觉系统的研究

机器人足球比赛是一项综合性的技术对抗活动，而视觉系统是整个比赛的基础，如何快速准确地识别出小球和机器人对比赛和胜负起着决定性的作用。本文针对集控式视觉系统讨论了视觉系统的特点、功能和实现过程，并提出了一些改进的方法。     

Subject Anaylsis Systems

No abstract available for this article.     

Gonadal hormones may predict structural bone fragility in elite female soccer player

ABSTRACT

Purpose: This study determined the impact of menstrual status on bone tissue in elite post-pubertal female soccer players over an entire season.

Methods: Fifty-one elite female soccer players participated. At baseline, forty-one were assigned to the low hormonal androgenic profile (low-HAPL) and 10 to the high hormonal androgenic profile (high-HAPL).

Results: An 8-month training program led to increased bone mineral density content (p<0.05). The low-HAPL athletes improved the Narrow neck average cortical thickness (ACT) by 1.4% and reduced the corresponding Buckling ratio (BR) by 2.6%, thus decreasing the fracture risk (p<0.05). The high-HAPL athletes decreased the Narrow neck ACT by 5.4% and increased the BR by 2.6%, increasing fracture risk (p<0.05). Differences were assigned as being “very likely beneficial” for the low-HAPL athletes, supported by very large (d=3.41) and large (d=1.58) effect sizes for the Narrow neck ACT and BR, respectively.

Conclusion: A season of soccer training has induced bone geometry improvements in adolescent females. Bone health parameters improved in the two clusters. However, high-HAPL athletes decreased its resistance to loading compare to low-HAPL athletes. Even if female players do not present clinical symptoms related to their hormonal status, sport medicine physicians should pay attention to their structural bone fragility.