论小康体育发展进程中农村民生体育建设

在新农村建设中,农村民生体育成为建设的重要组成部分。运用文献资料、逻辑分析等方法,在解读小康体育和民生体育的基础上,就小康体育发展背景下加强农村民生体育建设构想基本思路：坚持以人为本,牢固树立民生体育主体观;以农村学校体育为基础,推动农村民生体育健身工程实施;健全群众体育法律法规是农村民生体育建设的重要保障;开展村落春节运动会,是促进农村民生体育建设的重要依托;完善农村民生体育评价和激励机制,推动其健康有序发展。通过研究旨在为我国发展农村民生体育建设提供理论参考。     

兰州不同产地百合挥发油成分对比研究

采用水蒸气蒸馏法分别从甘肃省兰州市的榆中、七里河、西固不同产地百合中提取挥发油.用气相色谱-质谱联用技术（GC-MS）对其挥发油中的化学成分进行分离和结构鉴定,并运用气相色谱峰面积归一法,确定所鉴定出的化合物峰面积相对含量约占挥发油总量.结果显示,不同产地兰州百合挥发油的成分和含量存在一定差异,榆中百合挥发油共鉴定出23种化合物;七里河百合挥发油共鉴定出1 0种化合物;西固百合挥发油共鉴定出54种化合物.     

Ground reaction force characteristics of Tai Chi push hand

Abstract

Push Hand is an advanced training technique for the Yang-style old frame 108 forms Tai Chi Chuan. It is performed by two practitioners. To clarify how people use forces during Push Hand training, it is important to review the ground reaction force (GRF). Here, we quantify the characteristics of the GRF during Push Hand training. Kinematic data and GRF data from 10 Tai Chi Chuan practitioners (29.9 ± 7.87 years) were synchronously recorded using a three-dimensional motion analysis system (200 frames · s^?1) and three-dimensional force plates (1000 Hz). The resultant GRF for both feet for the 0%, 50% and 100% phases of attack and defence were compared to body weight using a paired-samples t-test. The differences in the resultant GRF between the 0%, 50% and 100% phases of attack and defence were tested by one-way repeated-measures ANOVA. The significance level was set to 0.05. The total resultant GRF was almost equal to the participant’s body weight in push hand. This result was consistent throughout the entire push hand process. Our results revealed that the GRF was comparable to the body weight, implying that practitioners do not push or resist their opponents during the push hand process.     

技巧啦啦操踺子后手翻接团身后空翻训练方法探析

技巧啦啦操属技能主导类表现难美性项群,翻腾类难度是我国大多数啦啦操运动员最大的难题。弥补现存训练方法的不足之处,完善踺子后手翻接后空翻的训练方法体系,提高难度动作的成功率,降低意外受伤的发生是教练员和运动员迫切解决的训练课题。论文采用文献资料法、专家访谈法、录像分析法,根据比赛中运动员在踺子后手翻接后空翻难度动作完成上暴露出的问题以及现有的训练方法不足,在总结科学、系统的训练方法后,加入一定的实践经验,对踺子后手翻接后空翻提出一套新的训练方法。     

Hitting the vault board: Implications for vaulting take‐off ‐ a preliminary investigation

Gymnastics vaulting relies on a specialized take‐off board for propulsion during the take‐off phase of the vault. There is little information on the vault board and its behaviour. The aim of this study was to characterize the behaviour of the vault board during handspring drill take‐offs of young male gymnasts (n = 36). The side of the top surface of the vault board and the wooden base were marked with three reflective markers, placed at the end of the vault board nearest the vault table and the centres of the two rearmost coil springs. The vault board surface was divided into two areas, rear and middle, based on marker location. The gymnasts’ groups were determined from the location of the gymnast's lateral malleolus at vault board contact. Landings with the malleolus directly above or behind the rearmost marker were considered rear landings; landings with the malleolus forward of the rearmost marker were considered middle landings. Marker movements were automatically digitized and the right malleolus was hand digitized at 120 Hz. The maximum vertical displacement, vertical deflection time, and vertical velocity at take‐off of the vault board markers did not differ statistically between board contact groups (all p > 0.05). The lateral malleolus velocity components also did not differ between board contact groups. Some low to moderately strong correlations were observed between the various marker displacements, durations and take‐off velocities. Modest correlations were obtained between board markers and right malleolus velocities. The results indicate that foot contact on the vault board, as defined here, did not result in differences in board marker behaviour or right lateral malleolus velocities. This information does not support the idea that vault board contacts at the rear of the vault board are worse than contacts near the middle of the vault board. More research is needed to ascertain the role of the vault board's vibration characteristics to whole body actions that are observed in the subsequent preflight phase.     

担保法律制度的几个问题探讨

本文对完善担保法律制度的几个问题进行了探讨 ,提高我国《担保法》不应将具有代位清偿能力作为保证人的资格要件 ;当事人对保证方式没有约定或约定不明确的 ,应当按照一般保证承担保证责任 ;人民法院受理破产案件后 ,债权人未申报债权的 ,保证人不再承担保证责任 ;抵押人所担保的债权可以超出其抵押物的价值 ,在抵押物的同一价值上可以设立重复抵押。     

易格式可执行文件脱壳方法论述

经过汇编级动态调试分析，设计出的针对一种特殊的以PE文件为载体的可执行文件“易格式可执行文件”的通用脱壳方法。     

“望”与“见”——陶诗《饮酒》其五一之辨

陶诗《饮酒》二十首第五首中用"见"或"望",历来存有两种意见。持见者认为非"见"不可出意境;持"望"者则语不甚详。现在梳理两派意见的基础上,从《饮酒》二十首的欣赏分析入手,指出从诗人当时心境及组诗的风格协调方面考虑,应用"望"字。     

全面建设小康社会对公平与效率的选择

全面建设小康社会对公平和效率的选择是总量和个量、经济公平和社会公平、扩“中”，和保“低”的统一。为此，必须以财产制度的持续创新确保“效率优先”；必须以健全的稳定机制实现公平，这是全面建设小康社会的重大理论和实践课题。     

浅析琵琶曲《霸王卸甲》的悲剧表现手段

通过对《霸王卸甲》的背景、传谱、题材、演奏形式等进行探析,挖掘琵琶“以悲为美”的器乐特性,从表现、手段上加深对乐曲艺术的理解和掌握。