First of all     

Christopher H. Sterling 《Communication Booknotes Quarterly》2013,44(2)

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Alexandre hardy and seventeenth century French tragedy     

F. K. Dawson M.A.  Ph.D. 《Culture, Theory & Critique》2013,54(1):78-94

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Studies in Motor Learning of Gross Bodily Motor Skills     

D. K. Brace 《Research quarterly for exercise and sport》2013,84(4):242-253

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Computer-Based Testing Systems: Much Ado About Nothing?     

Michael D. Hiscox 《Educational Measurement》1985,4(1):27-28

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Book reviews     

David Kaser  Marilyn Schwartz  Peter Morgan M.D.  Linnea Gentry  Frederick C. Lynden  Chris Smith  Czeslaw Jan Grycz 《Publishing Research Quarterly》1989,5(4):84-96

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Biodeterioration of Incralac used for the protection of bronze monuments   总被引：2，自引：0，他引：2  

Christopher J. McNamara  Margaret Breuker  Marie Helms  Thomas D. Perry  Ralph Mitchell   《Journal of Cultural Heritage》2004,5(4):361-364

Outdoor bronze sculptures are highly susceptible to corrosion in many environments and organic coatings are widely used for their protection. The purpose of this study was to determine the susceptibility of the commonly used coating Incralac to biodeterioration by microorganisms. A yeast was isolated from a bronze statue treated with Incralac and its ability to degrade Incralac was determined using growth curves, scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). The organism grew slowly on Incralac in liquid culture, but SEM images demonstrated its ability to adhere to Incralac coated metal. Additionally, the yeast caused a rapid drop in the low frequency impedance of Incralac coated metal that was not observed under sterile conditions, indicating that the organism accelerated deterioration of the coating. The potential for microbial growth to accelerate deterioration of Incralac should be considered when developing a maintenance strategy for the protection of outdoor metal monuments.  相似文献   

Identification of important authors in science: A comparison of two methods of identification     

C.D. Hurt 《Information processing & management》1985,21(3):177-186

This study examines the problem of identification of important authors in science by examining authors in the area of quantum mechanics. An examination was conducted using two methods of identification. The first method was a bibliometric approach and the second a historical approach. A gamma test of association was employed resulting in a finding of significant association between the ranks of authors. The major conclusion was that, when restricted to the same authors, the two methods of identifying important authors produce a statistically significant number of equivalent names. Discussion of the results and areas for further investigation are included.  相似文献   

Philanthropy and the Maintenance of Democratic Elites     

Karl  Barry D. 《Minerva》1997,35(3):207-220

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Electromyographic analysis of bow string release in highly skilled archers   总被引：3，自引：1，他引：2  

P E Martin  W L Siler  D Hoffman 《Journal of sports sciences》1990,8(3):215-221

A predominant archery coaching tenet holds that the most effective means of releasing the bow string is by relaxation of the finger flexor muscles without activation of finger extensors. To evaluate the validity of this view, EMG patterns of the flexor digitorum superficialis and extensor digitorum muscles of the draw arm were examined using surface EMG electrodes in 15 highly skilled archers as each performed six shots. Each archer displayed consistent EMG patterns from shot-to-shot and two distinct flexor-extensor patterns were exhibited by the sample. The first, characterized by eight of the archers, supported the relaxation principle. For these archers, both flexor and extensor digitorum activity decreased markedly immediately prior to or at arrow release. The second pattern, characteristic of the remaining seven archers, contradicted the coaching tenet. While the flexor digitorum pattern was essentially the same as that described for the first pattern, the extensor digitorum displayed a marked increase in activity just prior to release, indicating that string release was facilitated by an active extension of the fingers. It was concluded that highly skilled archers do not predominantly reflect a release consistent with the coaching canon and that factors other than the string release mechanism discriminate the performances of skilled archers.  相似文献   

Effect of time of day on perceived exertion at work rates above and below the ventilatory threshold     

D W Hill  K J Cureton  M A Collins 《Research quarterly for exercise and sport》1989,60(2):127-133

The effect of time of day on ratings of perceived exertion (RPE) at various intensities of cycling exercise, both below and above the ventilatory threshold, was studied in 32 subjects, 18 to 35 years of age. The ventilatory threshold occurred at the same (p greater than .05) mean (+/- SD) work rate in the morning (110.6 +/- 27.0 watts) and in the afternoon (111.9 +/- 23.9 watts) and was perceived as equally strenuous (p greater than .05) in the morning (RPE = 13.8 +/- 2.4) and in the afternoon (RPE = 13.6 +/- 2.8). At intensities below the ventilatory threshold, RPE was the same (p greater than .05) in the morning and in the afternoon; above the ventilatory threshold, RPE was lower (p less than .05) in the morning. We conclude that, during incremental submaximal cycling exercise above the ventilatory threshold, a particular work rate is perceived as less strenuous in the morning than in the afternoon. About 20% of this difference in RPE is explained by lower ventilatory demands in the morning.  相似文献