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51.
对散手运动员疲劳产生机制及其恢复手段的探讨 总被引:1,自引:0,他引:1
进入21世纪以来,散手比赛中运动员技术水平和竞技能力日益提高,其运动特点决定了要对运动员进行高强度、高密度的训练。这就难免在运动和训练过程中出现疲劳,必将对系统训练和运动寿命等造成影响,怎样恢复便成为了一个重要的问题,本文针对散手运动员疲劳产生的原因,提出了疲劳恢复的方法和手段。 相似文献
52.
服务补救悖论是否有效,是否能够被实际运用一直是服务营销的一个争论内容。只有在清晰的界定其内涵,分析和评价了服务补救悖论的有效性和道德性以后,才能指明实施服务补救悖论的条件、程序和注意事项,从而澄清在此问题上的理论分歧和企业面临的实际困惑,有助于服务类企业更好地实施服务补救悖论以提升顾客满意度。 相似文献
53.
在有效资产管制的条件下,电网企业为规避管制风险.必然采用适当的方法对其资产更换需求做出预测与决策,并使其资产更换数量尽可能与管制机构的评估数量相一致.针对现行的资产更换方法未能充分反映电网有效资产管制以及可靠性与经济性的特点,本文综合考虑上述三个要素,在分析现有电网资产更换的理论与方法的基础上.提出和分析了电网企业资产更换决策的评分法.本文认为,这种方法能够更加准确地分析和诊断资产健康状况,特别适用于电网企业资产的短中期更换数量的预测与决策,对电网企业大修、技术改造项目的合理安排也具有一定的借鉴价值. 相似文献
54.
在经典均值-方差模型的基础上,提出了存在交易费用时基于风险价值约束的资产配置模型.给出了该模型的解析算法,对最优解的存在性条件进行分析.针对我国资本市场数据,提出了机构投资资金应用该模型在大类别资产中的最优配置比例. 相似文献
55.
This article explores the possibility of using a theoretical framework drawn from disability studies in the field of mental health, and the study of identity (re)construction in the recovery process. In this PhD project, 33 narratives were analysed using framework analysis. The analysis showed that disablism was present and powerful in the participants’ lives, and also showed how disablism shaped how the participants thought and felt about themselves. As Carol Thomas argues, when analysing disablism one should also focus on who we are and are prevented from being, as disabled people. The conclusion is that processes of oppression were central when it comes to understanding the (re)construction of identities. A disability studies perspective is thus relevant in the field of mental distress, and can be used to enhance the understanding of the process of identity (re)construction. 相似文献
56.
Amany Hassan Abdel-Karim 《统计学通讯:模拟与计算》2015,44(2):271-283
For constructing simultaneous confidence intervals for ratios of means for lognormal distributions, two approaches using a two-step method of variance estimates recovery are proposed. The first approach proposes fiducial generalized confidence intervals (FGCIs) in the first step followed by the method of variance estimates recovery (MOVER) in the second step (FGCIs–MOVER). The second approach uses MOVER in the first and second steps (MOVER–MOVER). Performance of proposed approaches is compared with simultaneous fiducial generalized confidence intervals (SFGCIs). Monte Carlo simulation is used to evaluate the performance of these approaches in terms of coverage probability, average interval width, and time consumption. 相似文献
57.
Michal Grinstein-Weiss Olga Kondratjeva Stephen P. Roll Ofir Pinto Daniel Gottlieb 《Asia Pacific journal of social work》2019,29(1):20-33
ABSTRACTIn 2017, the Israeli government implemented a universal child development account programme – the Saving for Every Child Program (SECP) – which establishes a personal savings account for every Israeli child and provides monthly deposits until the child turns 18. The SECP has the potential to provide substantial assets when children reach adulthood, but the benefits depend on parents’ investment choices. The unique programme’s nature presents opportunities to learn from its implementation. This paper provides a comprehensive overview of the SECP, its legislative history, early findings from its implementation, and recommendations that may improve programme participation and outcomes across population groups. 相似文献
58.
We investigate the problem of dynamic optimal capital growth of diversified investment. A general framework that the trader maximize the expected log utility of long-term growth rate of initial wealth was developed. We show that the trader's fortune will exceed any fixed bound when the fraction is chosen less than critical value. But, if the fraction is larger than that value, ruin is almost sure. In order to maximize wealth, we should choose the optimal fraction at each trade. Empirical results with real financial data show the feasible allocation. The larger the fraction and hence the larger the chance of falling below the desired wealth growth path. 相似文献
59.
60.
ABSTRACTIn recent years, crimes related to drug smuggling and production have gradually increased in Korea. This qualitative case study explores the experiences of Koreans recovering from drug addiction and identifies specific details and mechanisms of recovery. For this purpose, participants were selected based on criteria such as engaging in social activities after recovery from addiction for 3 years or more. Next, one-on-one in-depth interviews were conducted with five voluntarily consenting participants. Data were analyzed using the within-/cross-case analysis suggested by Creswell. Substantial personal growth took place in the recovery process for drug addicts. Nineteen themes were identified as manifestations of personal growth through within-case analysis. Four common themes were then derived through cross-case analysis. These four common themes were “reconnection with reality,” “embracing the essence of one's own existence,” “reconstructing oneself in social relations,” and “self-love.” The study's results suggest that a recovery program needs to be developed wherein the program not only enables drug addicts to reflect on their current existence but also allows them to develop their specific coping skills. Future research should be broadened to consider the social support mechanism and viewpoints of people including family and local community members in close contact with drug addicts. 相似文献