实施股票期权制存在的问题及对策     

张浩飞  李向春 《唐山学院学报》2001,(3)

股票期权制是赋予公司经营者以事先确定的价格在未来一段期间内购买本公司股票的权利 ,是公司对经营者最为有效的激励方式之一。这种方式还有许多问题需要解决 ,有待政府和企业共同努力。  相似文献   

伴有边界摄动的三阶非线性系统Robin边值问题的奇摄动     

黄晓秋 《福建师大福清分校学报》1995,(2):26-32

本文研究伴有边界摄动的三阶非线性系统Robin问题的奇摄动。在适当的假定下，利用不动点定理，得到摄动问题解的存在性，并给出解的任意阶一致有效渐近展开式。  相似文献   

高校设备管理决策支持系统的设计与开发   总被引：2，自引：0，他引：2  

卢少然  俞守华  黄灏然 《实验技术与管理》2006,23(10):143-146

该文在分析高校设备管理决策支持系统的结构和需求的基础上，确定了系统的主要功能模块，并对系统主要功能模块的模型进行了设计。  相似文献   

高职高专教育质量保证与监督体系的构建   总被引：1，自引：0，他引：1  

陶红林 《职教探索与研究》2006,(3)

随着高职高专教育规模的扩大,其教育质量成为人们普遍关注的热点问题。从高职高专教育特点出发,建立高职高专教育质量的评估体系、监控体系及保障机制。  相似文献   

建立和完善农村卫生医疗保障体系——对福建省部分农村的调查分析   总被引：1，自引：0，他引：1  

张志祥  黎春娴 《和田师范专科学校学报》2005,25(5):27-28

农村卫生医疗事业属为农村社会生产和人民生活创造共同条件的社会性基础结构的一部分.本文以福建省农村卫生医疗保障体系的建设现状为基础,通过对部分农村及相关部门、机构的调查取证,分析了福建省农村卫生医疗保障体系建设中存在问题,并就健全和完善福建省农村卫生医疗保障体系进行了粗浅的探索.  相似文献   

Inter-participant variability in daily physical activity and sedentary time among male youth sport footballers: independent associations with indicators of adiposity and cardiorespiratory fitness     

Sally A. M. Fenton  Joan L. Duda  Timothy Barrett 《Journal of sports sciences》2016,34(3):239-251

Participation in youth sport is assumed to promote and contribute towards more physically active lifestyles among children and adolescents. The aim of this study was to examine inter-participant variability in objectively measured habitual physical activity (PA) behaviours and sedentary time among youth sport participants and their implications for health. One-hundred-and-eighteen male youth sport footballers (Mean ± s = 11.72 ± 1.60) wore a GT3X accelerometer for 7 days. Average daily PA [min · day^?1, in light (LPA), moderate (MPA), vigorous (VPA) and combined moderate-to-vigorous (MVPA)] and sedentary time were calculated. Participants’ body mass index adjusted for age and sex (BMI–standard deviation score), per cent body fat (BF%), waist circumference and cardiorespiratory fitness were assessed. Results revealed that variability in daily PA behaviours and sedentary time (min · day^?1) was associated with BMI–standard deviation score [VPA (?), MVPA (?)], BF% [sedentary time (+), VPA (?), MVPA (?)], waist circumference [sedentary time (+), LPA (?)] and cardiorespiratory fitness [sedentary time (?), MPA (+), VPA (+), MVPA (+)]. Whilst sedentary time and MVPA were not related to health outcomes independent of one another, associations with markers of adiposity and cardiorespiratory fitness were stronger for sedentary time. Sedentary time was also significantly positively related to waist circumference independent of VPA. Results demonstrate inter-participant variability in habitual PA and sedentary time among youth sport participants which holds implications for their health. Thus, promoting PA and, in particular, reducing sedentary time may contribute towards the prevention of adverse health consequences associated with a physically inactive lifestyle for children and adolescents active in the youth sport context.  相似文献   

Formulating,Testing, and Evaluating Principles of Morality in Sport: An Overview of Robert L. Simon’s Contributions to the Philosophy of Sport     

Cesar R. Torres 《体育哲学杂志》2016,43(1):3-14

  相似文献   

The expected value of possession in professional rugby league match-play     

Thomas Kempton  Nicholas Kennedy  Aaron J. Coutts 《Journal of sports sciences》2016,34(7):645-650

This study estimated the expected point value for starting possessions in different field locations during rugby league match-play and calculated the mean expected points for each subsequent play during the possession. It also examined the origin of tries scored according to the method of gaining possession. Play-by-play data were taken from all 768 regular-season National Rugby League (NRL) matches during 2010–2013. A probabilistic model estimated the expected point outcome based on the net difference in points scored by a team in possession in a given situation. An iterative method was used to approximate the value of each situation based on actual scoring outcomes. Possessions commencing close to the opposition’s goal-line had the highest expected point equity, which decreased as the location of the possession moved towards the team’s own goal-line. Possessions following an opposition error, penalty or goal-line dropout had the highest likelihood of a try being scored on the set subsequent to their occurrence. In contrast, possessions that follow an opposition completed set or a restart were least likely to result in a try. The expected point values framework from our model has applications for informing playing strategy and assessing individual and team performance in professional rugby league.  相似文献   

Neuromuscular and technical abilities related to age in water-polo players     

Fabio De Siati  Guillaume Laffaye  Giorgio Gatta  Antonio Dello Iacono  Johnny Padulo 《Journal of sports sciences》2016,34(15):1466-1472

Testing is one of the important tasks in any multi-step sport programme. In most ball games, coaches assess motor, physical and technical skills on a regular basis in early stages of talent identification in order to further athletes’ development. The purpose of the study was to investigate anthropometric variables and vertical jump heights as a free throw effectiveness predictor in water-polo players of different age groups. Two hundred and thirty-six young (10–18 years) male water-polo players partitioned into three age groups underwent anthropometric variables’ measures and squat- and countermovement-jump tests, and performed water-polo free throws. Anthropometric variables, vertical jump heights and throw speed – as a proxy for free throw effectiveness – resulted different over age groups. Particularly, throw speed changed from 9.28 to 13.70 m · s^?1 (+48%) from younger to older players. A multiple-regression model indicated that body height, squat-jump height and throw time together explain 52% of variance of throw speed. In conclusion, tall height, high lower limb power and throwing quickness appeared to be relevant determinants for effective free throws. Such indications can help coaches during talent identification and development processes, even by means of novel training strategies. Further research is needed over different maturity statuses.  相似文献   

Effects of tapering on physical match activities in professional soccer players     

Mohamed Saifeddin Fessi  Nidhal Zarrouk  Valter Di Salvo  Cristoforo Filetti  Alan R. Barker 《Journal of sports sciences》2016,34(24):2189-2194

ABSTRACT

This study aimed to examine: (i) the effect of decreasing training load (TL) during taper weeks on physical match activities in professional soccer players, and (ii) to disclose the relationship between weekly TL and physical match activities. Rating of perceived exertion was collected after each training session and match to quantify the TL in 19 professional players over 17 standard and 7 taper weeks during the season. Physical match activities were quantified by a computerised match analysis system and compared between standard training and taper weeks. Compared to standard weeks, the duration and frequency of training sessions during the taper weeks decreased (?21.7% and ?18.8%, respectively; P < 0.01) with no change in intensity (?4.8%; P = 0.09). Consequently, the weekly TL decreased during the taper weeks (?25.5%; P < 0.01). Increases in distance covered by intense running (+15.1%; P < 0.05), high-intensity running (HIR) (+15.7%; P < 0.01), number of sprints (+17.8%; P < 0.05) and number of high-speed runs (+15.7%; P < 0.05) were observed during the seven matches played after the taper weeks. High relationships were observed between TL and HIR distance covered, number of HIR and number of sprints (r = ?0.53; r = ?0.55; r = ?0.65, respectively; P < 0.01). Decreasing TL during taper weeks by reducing training duration and frequency but maintaining intensity was associated with an increase in physical activities during matches. However, it needs to be determined whether tapering or other match factors led to the changes in match activity.  相似文献