一个高中教师心中的班主任

本文系统地总结了班主任的工作任务和对学生应该起到的积极教化作用,探究了21世纪优秀班主任应该具备的自身素质和工作能力。优秀班主任,应该为学生的美好前程打下坚实的基础,应该酿造出学生健康的精神、伟大的心灵和利人利己利社会的行为。     

压力教学法在网球底线对抗中的实验研究简

采用文献资料法、问卷调查法、实验法和数理统计法等研究方法,在分析网球底线抽球能力评定标准和影响因素的基础上,进行了压力教学法与传统教学法的对比实验,实验后测发现实验组学生在抽球的稳定性和应变力上明显优于对照组,分析认为压力教学法能提高学生的专注度和应变能力,磨练意志,增强临场应对能力,对提高学生底线抽球能力具有一定指导意义,另外在教学方法上可以为网球教学提供参考和借鉴。     

生长发育突增期青少年左右足底压力分布的对比分析

为探索生长发育突增期青少年自然行走时左右足底各区域压力分布特征,采用比利时Footscan平板式足底压力分布测试系统对20名青少年(13-14岁)正常行走时左右足底压力的测试。研究显示,13-14岁青少年自然行走过程中左右双足各区域的压力分布存在一定的差异性意义,但左右双足的足底压力分布规律基本一致。     

Anticipatory postural adjustments during cutting manoeuvres in football and their consequences for knee injury risk

Abstract

Anticipatory postural adjustments (APAs), i.e. preparatory positioning of the head, the trunk and the foot, are essential to initiate cutting manoeuvres during football games. The aim of the present study was to determine how APA strategies during cutting manoeuvres are influenced by a reduction of the time available to prepare the movement.

Thirteen football players performed different cutting tasks, with directions of cutting either known prior to the task or indicated by a light signal occurring 850, 600 or 500 ms before ground contact.

With less time available to prepare the cutting manoeuvre, the head was less orientated towards the cutting direction (P = 0.033) and the trunk was even more rotated in the opposite direction (P = 0.002), while the foot placement was not significantly influenced. Moreover, the induced higher lateral trunk flexion correlated with the increased knee abduction moment (r = 0.41; P = 0.009).

Increasing lateral trunk flexion is the main strategy used to successfully perform a cutting manoeuvre when less time is available to prepare the movement. However, higher lateral trunk flexion was associated with an increased knee abduction moment and therefore an increased knee injury risk. Reducing lateral trunk flexion during cutting manoeuvres should be part of training programs seeking the optimisation of APAs.     

Return to play management after concussion in football: recommendations for team physicians

Abstract

A concussion is a rare but potentially serious injury of football players. Thus, an immediate and valid diagnosis, estimate of severity and therapeutic management is required. To summarise the published information on management of concussion with respect to a safe return to play (RTP), a literature search was conducted. Current guidelines on concussion in sports and significant studies on concussion in football were analysed. After concussion, management and RTP decision should remain in the area of clinical judgement on an individualised basis according to the current international guidelines. If a concussion is suspected, the player should not be allowed to RTP the same day. The RTP programme should follow a gradual step-wise procedure. A concussed player should not RTP unless he/she is asymptomatic and the neurological and neuropsychological examinations are normal. Untimely RTP bears an increased risk of sustaining another more severe brain injury and repetitive brain injury of long-term sequelae. In football, the management of concussion should primarily follow the recommendations proposed by the Concussion in Sports Group. Information and education of players and their medical and coaching team help to protect the players’ health. Future studies on concussion should include validated and detailed information on RTP protocols.     

班主任如何对学生进行青春期教育

青春期是学生性发育和性心理趋向成熟的特殊时期.在这个时期,班主任对学生进行青春期的教育应立足于学校现有的教育环境,从四项教育原则入手,达到三项基本技能.     

对中学体育教学中培养学生意志品质的探讨

对甘肃靖远高中二年级学生的调查，结果表明，有相当一部分学生心理承受能力及竞争和合作意识差，就体育教学如何培养学生良好意志品质做了阐述。     

人盯人紧逼轮转换位防守的技战术

通过长期的训练和比赛实践 ,对福建女篮防守战术的总结研究表明 :人盯人轮转换位紧逼防守是一种行之有效的积极的防守战术。     

What price the building of world-class universities? Academic pressure faced by young lecturers at a research-centered University in China

This study explores the challenges faced by young lecturers in managerial transformation in elite Chinese academic institutions which aim to develop into world-class universities. Drawing on data from in-depth interviews, the paper discusses how a group of lecturers on tenure-track contracts at a research university in China perceived the impacts of this managerial personnel reform. The study revealed intensified academic pressure and consequent feelings of insecurity, uncertainty and anxiety among the participants. Rigid tenure requirements pushed down research quality, and detracted from the efforts the participants could have devoted to teaching. Further negative impacts were strengthened power hierarchies and increasingly gendered nature of the academic culture.     

Analysis of academic administrators’ attitudes: annual evaluations and factors that improve teaching

This article examines academic administrators’ attitudes towards the academic evaluation process in the US and those factors that are utilised to improve teaching. We use path regressions to examine satisfaction with evaluation procedures, as well as the direct and indirect effects of these factors on perceptions of whether the evaluation process facilitates quality instruction. With increased pressure for accountability being placed on higher education, it is important to ensure that we are meeting both public and academic expectations. The evaluation process is an important tool to ensure the university’s goals and values are articulated and that academics can be successful in their individual career paths. The problem is most research finds flaws with the current method of evaluation, and academics and academic administrators are sceptical about the process and results. We find there are environmental factors that influence academic administrators’ perceptions of academic evaluations and the ability to improve classroom instruction.