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We examined the effectiveness of perceptual training on the performance of handball goalkeepers when anticipating the direction of both direct and deceptive 7-m throws. Skilled goalkeepers were assigned equally to three matched-ability groups based on their pre-test performance: a perceptual training group (n = 14) received video-based perceptual training, a placebo training group (n = 14) received video-based regular training and a control group received no training. Participants in the perceptual training group significantly improved their performance compared to both placebo and control groups; however, anticipation of deceptive throws improved less than for direct throws. The results confirm that although anticipating deception in handball is a challenging task for goalkeepers, task-specific perceptual training can minimise its effect and improve performance. 相似文献
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文章主要介绍激光雷达测距的原理,激光测距机的组成及各部分的功能,根据其原理,介绍一种常用的距离欺骗的方法-数字储频技术,阐述其距离假目标欺骗的原理,对其工作过程进行仿真。研究表明,采用数字储频技术能够有效的进行欺骗,这种技术既可以用于掩护空防,又可以用于干扰敌方并诱敌开机,暴露其真实的兵力部署,因此具有相当大的军事意义。 相似文献
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We compared the effects of (1) accurate and (2) surreptitiously augmented performance feedback on power output and physiological responses to a 4000 m time-trial in the heat. Nine cyclists completed a baseline (BaseL) 4000 m time-trial in ambient temperatures of 30°C, followed by two further 4000 m time-trials at the same temperature, randomly assigning the participants to an accurate (ACC; accurate feedback of baseline) or deceived (DEC; 2% increase above baseline) feedback group. The total power output (PO) and aerobic (Paer) and anaerobic (Pan) contributions were determined at 0.4 km stages during the time-trials, alongside measurements of rectal (Trec) and skin (Tskin) temperatures. There were no differences (P > 0.05) in any of the variables between BaseL, ACC and DEC, despite increases (P < 0.05) in Trec and Tskin. Typical pacing profiles were demonstrated; however, there was no interaction (P > 0.05) between feedback condition and time-trial stage. Providing surreptitiously augmented performance feedback to well-trained cyclists did not alter their performance or physiological responses to a 4000 m time-trial in a hot environment. The assumed influence of augmented performance feedback was nullified in the heat, perhaps reflecting a central down-regulation of exercise intensity in response to an increased body temperature. 相似文献
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Adam G. Pfleegor 《体育哲学杂志》2013,40(2):209-231
Almost four decades ago, Kathleen Pearson examined deceptive practices in sport using a distinction between strategic and definitional deception. However, the complexity and dynamic nature of sport is not limited to this dual-categorization of deceptive acts and there are other features of deception in sport unaccounted for in Pearson's constructs. By employing Torres’s elucidation of the structure of skills and Suits's concept of the lusory-attitude, a more thorough taxonomy of in-contest sport deception will be presented. Despite the ubiquitous presence of deception in sport, few scholars have examined this concept in the sport philosophy literature since Pearson’s contribution. This paper hopes to advance a deeper understanding of deceptive practices in competitive sport and also comment on the ethical permissibility of certain sport skills from a moral perspective. 相似文献
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柳碧红 《晋城职业技术学院学报》2012,5(3):7-9
新时期要求大学生思想政治教育工作者能把大学生的思想政治教育工作精细化,促进大学生的全面发展和健康成长成才。本文撰写了在实际工作中经常能遇到的大学毕业生求职受骗的典型案例,并通过案例分析归纳和延伸思考,总结出加强大学毕业生就业防骗与维权教育的措施。 相似文献
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杜绝高校考试舞弊行为浅议 总被引：2，自引：0，他引：2
江涛 《湖南广播电视大学学报》2008,(1):53-54
制止高校考试舞弊行为,加强思想教育,深化教学改革与考试改革是治本之策,从严管理考试是必要手段,制定考试法规是有力措施。 相似文献
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Gordon R. Mitchell 《Quarterly Journal of Speech》2013,99(2):121-145
During the 1991 Persian Gulf War, the apparent success of the Patriot missile defense system served as the official centerpiece of a rhetorical campaign to portray Operation Desert Storm as an unprecedented mission ushering in a new era of American military dominance based on technological superiority. Post‐war disclosures have not only cast serious doubt on Patriot's wartime performance, but have also exposed a widespread program of strategic deception employed by Pentagon officials to protect the fiction of Patriot's Gulf War wizardry. This essay explains how Gulf War audiences were misled, assesses the rhetorical windfall flowing from perceived Patriot effectiveness, and criticizes the Pentagon's campaign of strategic deception as normatively bankrupt. 相似文献
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分析图书馆网络安全问题，对如何综合运用虚拟防火墙、虚拟局域网和虚拟入侵诱骗三种技术构建图书馆网络安全体系进行全面的设计与技术实现。 相似文献
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