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341.
肖波 《世界华商经济年鉴·科学教育家》2009,(7):98-99
工程项目管理是建筑施工企业的管理核心,项目部是建筑施工企业创造经济效益基本单位。运用薪酬管理强化项目管理人员的安全意识和安全管理是最简洁易行的。目前,项目施工质量已经纳入安全管理范畴,施工项目质量的终身责任制逐渐在推行。因此,如何引入薪酬分配、绩效考核等竞争机制的同时,在项目管理薪酬制度中加大安全质量保障权重,是建筑企业持续健康稳定发展的重要保证。 相似文献
342.
心理求助行为影响因素初探 总被引:2,自引:0,他引:2
在日常生活中,一些人在产生了自己难以解决的心理问题时,不寻求专业性心理帮助,以致使心理问题变得更加严重,这一问题已经引起了国内外不少学者的关注。本文对影响心理求助者行为的因素进行了分析,以期为我国的心理健康教育提供有价值的资料。 相似文献
343.
主位和述位是布拉格学派提出的句法功能观(FSP)的两大要素,而主述位推进模式则构成语篇发展的基本途径。虽然英汉语存在较大的区别,但在基本语言组织和思维上有共通之处这就意味着在译文中应尽可能保留主述位推进模式,这也是确保译文质量的一个重要因素。 相似文献
346.
Segmental and kinetic contributions in vertical jumps performed with and without an arm swing 总被引:1,自引:0,他引:1
To determine the contributions of the motions of the body segments to the vertical ground reaction force (Fz), the joint torques produced by the leg muscles, and the time course of vertical velocity generation during a vertical jump, 15 men were videotaped performing countermovement vertical jumps from a force plate with and without an arm swing. Linear kinematic, Fz, and joint torque data were computed and compared using repeated measures analysis of variance. Maximum jump height was significantly larger in the arm swing jumps compared to the no arm swing jumps and was due to both a higher height of the center of mass (CM) at takeoff (54%) and a larger vertical velocity of the CM at takeoff (46%). The net vertical impulse created during the propulsive phase of the arm swing jumps was greater due to a trend of an increased duration (0.021 s) of the propulsive phase and not to larger average values of Fz. In the arm swing jumps, the arm motion resulted in the arms making a larger maximal contribution to Fz during the middle of the propulsive phase and decreased the negative contribution of the trunk-head and thigh to Fz late in the propulsive phase. Last, the arm swing decreased the extensor torques at the hip (13%), knee (10%), and ankle (10%) early in the propulsive phase but augmented these same extensor torques later in the propulsive phase. 相似文献
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Radlo SJ Janelle CM Barba DA Frehlich SG 《Research quarterly for exercise and sport》2001,72(1):22-31
This study was designed to examine the perceptual and attentional processes associated with the effects of administering a cost-benefit precuing paradigm to intermediate and advance-level baseball batters. Psychophysiological and performance data obtained from 10 advanced and 10 intermediate-level players were compared. A total of 400 pitches (200 fastballs, 200 curveballs) was randomly presented via a large projection screen, and participants pressed one of two buttons to indicate the type of pitch thrown. Verbal precues were given for 300 of the pitches. Of those, 75% were valid, and 25% were invalid. Electroencephalographic data collected from the P location was used to assess the latency and amplitude of P300. Analysis of variance (Skill Level x Precue x Pitch) for P300 and reaction time (RT) indicated that intermediate batters produced shorter P300 latencies, larger P300 amplitudes, longer RTs, and less correct responses than the advanced batters; the effects were more pronounced for the curveballs. These results suggest that intermediate batters are less efficient in their perceptual decision-making processes due to greater limitations in attentional capacity when compared with advanced batters. 相似文献
350.