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1.
裘韵 《体育科研》2020,(2):45-53
《反兴奋剂运动员权利规则》是由世界反兴奋剂机构下属的运动员委员会制定,执行委员会批准通过的首个明确规定运动员在反兴奋剂活动中权利的文件。作为运动员参与反兴奋剂活动的基础,该文件的制定与修订争议不断,多集中于文件名称、法律地位及其内容中不具有强制执行力的部分。在体育组织的干预下,起草者修改了文件的名称并澄清“这不是一份法律文件”,使该文件的意义与价值存疑。建议在日后的修订中慎重考虑文件名称的匹配性,在厘清该文件与《世界反兴奋剂条例》及国际标准关系的基础上,赋予其法律效力或给予象征性法律规则的地位,完善对受侵犯权利救济的指引,加快建立申诉处理机制。  相似文献   
2.
ABSTRACT

The aim of this study was to compare the effects of 20 min neuromuscular training with a programme of 10 min in youth football players. 342 (15.4 ± 1.7 years) male football players from 18 teams were included, and cluster-randomized by team into two intervention groups. Both groups performed an injury prevention programme twice a week over five months using the same exercises but a different duration. The first intervention group (INT10, n = 175) performed the programme for 10 min, the second intervention group (INT20, n = 167) for 20 min. Primary outcomes were lower extremity (LE) injuries. Secondary outcomes were injury type, severity, mechanism and compliance to the intervention. 13 teams with 185 players were included for final analysis. No significant group difference was found between INT10 (6.37 per 1000 h) and INT20 (7.20 per 1000 h) for the incidence rate ratio of the lower extremities (IRR = 1.03, 95% confidence interval 0.59, 1.79), nor for the distribution of injury location, type, severity or mechanism. The results show that performing preventive exercises for 10 min is no less effective than 20 min in youth football players. Shorter training sessions can, therefore, be effectively used for injury prevention.  相似文献   
3.
引入模糊集定性比较分析(fuzzy-set qualitative comparative analysis,fsQCA)进行产学研协同创新绩效研究,改进基于对称性假设进行绩效测度的方法。理论分析和实证结果表明,改进后的测度方法可行而且易用,其优点在于采用条件集合和绩效之间的映射关系表征结果,不但能够进行数值大小的比较,而且其路径分析还有助于发现提升绩效的途径。  相似文献   
4.
The rapid development of e-commerce is driving many traditional manufacturing enterprises to establish online channels. This typically leads to online and offline channel conflicts for these enterprises. Existing studies on channel conflict management primarily focus on describing the conflicts and discussing the types of strategies. Utilizing the case study method and taking the resource orchestration perspective as the theoretical lens, this study examines the implementation processes of online and offline channel integration and segmentation strategies in two Chinese manufacturing enterprises. The findings reveal the prerequisite to select online and offline integration and segmentation strategies, and specific resource orchestration actions and capabilities generated under the guidance of the integration and segmentation strategies. This study has theoretical implications to the online and offline channel conflict management strategies by extending the “what” question to the “how” question. In addition, this study also provides references to practitioners for selecting and implementing appropriate online and offline channel conflict management strategies.  相似文献   
5.
Factors influencing the adoption and acceptance of tablets as a mobile technology were explored one year after their integration in middle schools in Palestine. Semi-structured interviews were conducted with 15 teachers. The participants held a variety of attitudes toward accepting mobile technologies in their instruction. The findings revealed that teachers' attitudes are an important factor in accepting or rejecting tablet use in classrooms. Many factors influenced teachers' attitudes such as technical support, instructional assistance, and infrastructure. A teacher's prior experience with tablets was also important for integrating technology into the classroom.  相似文献   
6.
Janet Evans 《Education 3-13》2018,46(7):782-801
There has always been war and conflict in our world. Conflict almost always goes hand-in-hand with human suffering and is usually caused by issues related to religion, power and politics linked to greed and money. Ordinary people, trying to live their everyday lives often suffer the greatest effects, with extreme hardship, misery and intense unhappiness frequently leading to death, destruction and displacement. This article looks at the concept of migration caused by war and conflict as dealt with by a text set of picturebooks. It considers the responses of a group of 9- and 10-year-old children as they discuss what is meant by migration, migrants and refugees and focuses on what it would be like if, because of war, they found themselves in the situation of having to leave their homes and seek refuge in a new country.  相似文献   
7.
从分析供需匹配之间存在的冲突入手,提出一种基于图模型冲突分析法来求解供需匹配问题的思路。首先在图模型视角下给出供需匹配问题的研究框架,分析不同类型的供需匹配问题,设定决策主体和决策策略;然后讨论不同匹配类型下的状态约简、偏好表达,进行稳定性分析;最后通过应用案例,将图模型法与群决策匹配算法进行对比分析,验证图模型求解供需匹配问题的有效性。  相似文献   
8.
外部网络关系对企业双元创新的影响结果存在较大争议,企业维持何种状态的外部网络关系会促进双元创新,影响机理中知识吸收能力起到怎样的作用,这是亟需研究的问题。对387家企业为样本进行问卷调查,运用结构方程模型法,以知识获取能力和知识实现能力为双重中介,探析外部网络关系对企业双元创新的影响。研究结果表明:外部网络关系不同维度对双元创新具有差异化影响;网络关系强度和网络关系密度的提高以及网络关系深度的适度降低有利于渐进性创新,网络关系深度和网络关系密度的提高以及网络关系强度的适度降低更有利于突破性创新;知识吸收能力在外部网络关系对双元创新的影响中发挥部分中介作用。  相似文献   
9.
The analysis of sport performance in competitive contexts has become synonymous with the use of a range of software applications and hardware e.g. heart rate monitors and gps systems. With the prevalence of technology in mind, a small but growing corpus of literature has begun to consider this phenomenon and its influence upon the coaching process. This study adds to this literature by detailing the autoethnographic experiences of a case study coach; Derek. A contextualised and richly described narrative account of Derek’s experience of using coaching applications is provided. Analysis of Derek’s narrative suggests that technology can be a useful means by which individuals make sense of their experience. Specifically, (1) technology can be a ‘ready-to-hand’ instrument that enhances the coaching process. Unfortunately, (2) technology may become the only and ‘calculative’ means by which individuals come to understand their performance. In such instances, it is important to note that (3) the videos we use to understand our performance are transformed and incomplete representations of lived athletic experiences. Thus, Derek’s story illustrates how technology can be both an enabler and barrier to athletes who wish to holistically understand their own lived experiences and engage in coach-athlete relationships. The accompanying analysis draws upon concepts from Heideggerian philosophy to add insight into the use of technology within the coaching process. In so doing, the study prompts coaches to critically view their coach-athlete relationships as situated in a wider world which contains, and can be mediated by, technology. In addition, Derek’s story (re)directs researchers and coaching practitioners interested in technology to a useful literature (philosophy of technology) which may further inform their understanding of coach-athlete relationships.  相似文献   
10.
《Research Policy》2019,48(8):103766
Organizations build strategic alliances with other firms with the intent of tapping into partners’ resources and capturing long-term value from these relationships. Such partnerships are typically governed by contractual or equity arrangements with clear mutual obligations. More recently, however, organizations have begun to seek strategic partnerships with open innovation communities, which are novel digitally enabled forms of organizing, and where contractual commitments are not possible. Thus, selecting the right open innovation community as an alliance partner becomes a more complex decision. We follow how the organizational decision makers, in two technology firms that were pioneers of forming strategic alliances with open innovation communities, developed metrics around making such decisions. We build upon Shah and Swaminathan’s (2008) contingency model of alliance partner selection and consider how it applies to the case of partnering with open innovation communities. This framework was useful in to frame our findings, yet our work recognizes and builds upon two key differences: 1) the evaluation metrics used in selecting an open innovation community were more focused on value creation than value capture; and 2) open ecosystem considerations, and not just partner-specific metrics, featured prominently in this type of alliance partner evaluation. We develop the notions of community and ecosystem health to refer to these new metrics.  相似文献   
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