中美战略博弈下的台湾

台湾问题缘起于中国内战,但其延续与持久存在,却是中美战略冲突的产物。冷战以来的美国对台政策几经变迁,但始终以美国的利益为依归。台海统一必然触动美国霸权,台海统一同时是中国复兴的战略基点。随着马英丸当选与台独势力衰落,而两岸寻求和平共存,美国的对华政策将可能被迫再度调整,退出两岸纷争。维持台海现状政策已完成历史使命,有必要重估台海形势,将统一适时提上议事日程。在中国完成统一之后,中美关系才能向正常的大国关系过渡。     

关于高校工会促进师德建设的思考

加强高校师德建设有很强的现实意义,高校工会作为学校的群众组织,是联系广大教职工的桥梁和纽带,在师德建设中有着自身的特点和优势,新形势下需要积极探索各种有效途径,充分发挥高校工会在师德建设中的作用。     

工会如何贯彻企业社会责任——从维护劳动者合法权益的角度

企业不仅是社会财富的创造者,还是社会责任的承担者。工会是劳动者合法权益的责任保护者;工会与企业依法可以在维护劳动者合法权益上取得基本共识,进行深度合作。工会应当促进企业社会责任运动的开展,以便更好地维护劳动者的合法权益。     

Information-governing dynamics of attacker–defender interactions in youth rugby union

Abstract

Previous work on dynamics of interpersonal interactions in 1 vs. 1 sub-phases of basketball has identified changes in interpersonal distance between an attacker and defender as a potential control parameter for influencing organizational states of attacker–defender dyads. Other studies have reported the constraining effect of relative velocity between an attacker and defender in 1 vs. 1 dyads. To evaluate the relationship between these candidate control parameters, we compared the impact of both interpersonal distance and relative velocity on the pattern-forming dynamics of attacker–defender dyads in the sport of rugby union. Results revealed that when interpersonal distance achieved a critical value of less than 4 m, and relative velocity values increased or were maintained above 1 m · s^?1, a successful outcome (i.e. clean attempt) for an attacker was predicted. Alternatively, when values of relative velocity suddenly decreased below this threshold, at the same critical value of interpersonal distance, a successful outcome for the defender was predicted. Data demonstrated how the coupling of these two potential, nested control parameters moved the dyadic system to phase transitions, characterized as a try or a tackle. Observations suggested that relative velocity increased its influence on the organization of attacker–defender dyads in rugby union over time as spatial proximity to the try line increased.     

Velocity and acceleration before contact in the tackle during rugby union matches

Abstract

The velocity and acceleration at which the ball-carrier or tackler enters the tackle may contribute to winning the contest and prevailing injury free. Velocity and acceleration have been quantified in controlled settings, whereas in match-play it has been subjectively described. The purpose of this study was to determine the velocity and acceleration of the ball-carrier and tackler before contact during match-play in three competitions (Super 14, Varsity Cup, and Under-19 Currie Cup). Using a two-dimensional scaled version of the field, the velocity and acceleration of the ball-carrier and tackler were measured at every 0.1 s to contact for 0.5 s. For front-on tackles, a significant difference (P < 0.05) between the ball-carrier (4.6 ± 1 m · s^–1) and tackler (7.1 ± 3.5 m · s^–1) was found at the 0.5 s time to contact interval in the Varsity Cup. For side-on tackles, differences between the two opposing players were found at 0.5 s (ball-carrier: 4.6 ± 1.7 m · s^–1; tackler: 3.1 ± 1.2 m · s^–1) and 0.4 s (ball-carrier: 6.3 ± 2.3 m · s^–1; tackler: 3.7 ± 1.6 m · s^–1) at Under-19 level. After 0.4 s, no significant differences (P > 0.05) were evident. Also, the ball-carrier's velocity over the 0.5 s was relatively stable compared with that of the tackler. Results suggest that tacklers adjust their velocity to reach a suitable relative velocity before making contact with the ball-carrier.     

本质集的邻域并和无爪图的哈密尔顿性

设G是一个图 ,G的独立集Y称为本质集 ,如果存在 {y1,y2 } Y ,使得dist(y1,y2 ) =2 .本文利用插点方法 ,给出了关于k或 (k + 1)连通 (k≥ 2 )无爪图G是哈密尔顿的或 1哈密尔顿的统一的证明 .2个结果的充分条件是关于 ∑ki=0N(Yi) 与n(Y)的不等式 ,这里Y是图G的任一本质集 ,对于i∈ { 0 ,1,… ,k} ,Yi={y1,yi- 1,… ,yi- (b- 1) } Y(yj 的下标将取模k + 1) ;b是一个整数 ,且 0 相似文献   

斯大林和战前苏联兵器工业

苏联战前兵器工业所取得的成就，是斯大林时代国家对其源源不绝地倾注人力、对力、物力和科研力量的结晶。斯大林的个人因素对苏联兵器工业的发展产生了巨大的影响，在他强有力的领导和指导下，苏联战前的兵器工业为其赢得二战的胜利莫定了坚实的基础。     

高阳商会与近代高阳纺织业的兴盛

近代高阳织布业“胜甲北省”，其兴盛和高阳商会的推动作用密不可分。商会对区域性经济发展的促进，直至今天仍然有重要的启迪意义。     

抗战初期中国共产党对冀中联庄会工作述论

联庄会武装是抗日战争爆发后,在冀中地区涌现出的势力最大的民间武装。开展联庄会工作,事关冀中抗日根据地的创建、巩固与发展。冀中党组织正确分析了联庄会的复杂情况,积极而又稳妥地对联庄会进行了争取、收编与改造。联庄会工作的成功,为冀中平原游击战的大发展创造了条件。     

高职院校产学研联合的瓶颈与对策分析

当前，高职院校的产学研联合在理论和实践方面都还非常薄弱。本文在简析产学研联合本质内涵的基础上，反思了高职院校产学研联合的现状和问题，提出加强产学研联合要选好基准点，关注共同点，找准切入点，把好关键点，培育生长点，打造闪光点。