Conflict, Social Competence, and Gender: Maternal and Peer Contexts     

Martha Putallaz  Laura Hellstern  Blair H. Sheppard  Christina L. Grimes  Kimberly A. Glodis 《Early education and development》1995,6(4):433-447

The current study was designed to address two major purposes. The first goal was to investigate the joint influence of children's sociometric status and sex on their conflict behavior, and the second goal was to explore the similarities and differences in children's conflict behavior across two contexts, specifically conflicts arising during interactions with mothers and with peers. Forty-two first-graders were videotaped playing with their mothers and then with an unfamiliar peer partner. Conflict behavior occurring in the mother-child context was quite different from that occurring between children, reflecting the contrast between the vertical and horizontal nature of these relationships. Most striking were the large number of sociometric status and sex differences in conflict behavior found across both contexts. Further, it appears that effective conflict behavior may differ for boys and girls. Implications for future research are discussed.  相似文献   

Complacent and conflicting scientific expertise in British and American drug regulation: clinical risk assessment of triazolam     

Abraham J  Sheppard J 《Social studies of science》1999,29(6):803-843

This paper presents a case study in the production and interpretation of regulatory science, focusing on the conflicting British and American clinical risk assessments of triazolam (Halcion) - the most controversial sleeping pill in the world. The regulation of triazolam is shown to be more permissive in the USA than in the UK. Six principal socio-political factors are put forward to explain this; differential regulatory trust; regulators' socio-technical data selections; medico-scientific disciplinary influences; organizational and professional interests; conflicts of interest of expert advisers; and the growth of the neo-liberal regulatory state. The risk assessments of both the British and American regulatory agencies are shown to be complacent relative to technical standards which the agencies themselves later accepted. It is suggested that, when the interests of pharmaceutical manufacturers and patients diverge, regulatory assessments are crucially affected by whether regulators are predisposed to award the benefit of the scientific doubts to the manufacturers or patients, and by the balance of such predispositions both within and between regulatory institutions of scientific expertise. The triazolam case indicates that the amount of trust placed in the pharmaceutical industry by the British American regulatory systems may hamper detection of flaws in manufacturers' medical data in a timely manner and, as a consequence, compromise patients' interests. Some policy implications for drug regulation are sketched.  相似文献   

The halogen acceptor theory of sensitivity and the thioanilides     

S.E. Sheppard  H. Hudson 《Journal of The Franklin Institute》1927,204(4):541-542

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Addition compounds of allylthiourea with silver halides     

S.E. Sheppard  H. Hudson 《Journal of The Franklin Institute》1927,204(3):405-406

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The sensitivity of silver halide grains in relation to size     

S.E. Sheppard  A.P.H. Trivelli 《Journal of The Franklin Institute》1927,203(6):829-833

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The reticulation of gelatine     

S.E. Sheppard  F.A. Elliott 《Journal of The Franklin Institute》1919,187(2):227

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Photographic sensitivity: A colloid chemical problem     

S.E. Sheppard 《Journal of The Franklin Institute》1926,201(4):503-504

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Prediction of maximal oxygen uptake in sedentary males from a perceptually regulated, sub-maximal graded exercise test   总被引：2，自引：0，他引：2  

Eston R  Lambrick D  Sheppard K  Parfitt G 《Journal of sports sciences》2008,26(2):131-139

The purpose of this study was to assess the validity of predicting the maximal oxygen uptake (VO2(max)) of sedentary men from sub-maximal VO2 values obtained during a perceptually regulated exercise test. Thirteen healthy, sedentary males aged 29-52 years completed five graded exercise tests on a cycle ergometer. The first and fifth test involved a graded exercise test to determine VO2(max). The two maximal graded exercise tests were separated by three sub-maximal graded exercise tests, perceptually regulated at 3-min RPE intensities of 9, 11, 13, 15, and 17 on the Borg ratings of perceived exertion (RPE) scale, in that order. After confirmation that individual linear regression models provided the most appropriate fit to the data, the regression lines for the perceptual ranges 9-17, 9-15, and 11-17 were extrapolated to RPE 20 to predict VO2(max). There were no significant differences between VO2(max) values from the graded exercise tests (mean 43.9 ml x kg(-1) x min(-1), s = 6.3) and predicted VO2(max) values for the perceptual ranges 9-17 (40.7 ml x kg(-1) x min(-1), s = 2.2) and RPE 11-17 (42.5 ml x kg(-1) x min(-1), s = 2.3) across the three trials. The predicted VO2(max) from the perceptual range 9-15 was significantly lower (P < 0.05) (37.7 ml x kg(-1) x min(-1), s = 2.3). The intra-class correlation coefficients between actual and predicted VO2(max) for RPE 9-17 and RPE 11-17 across trials ranged from 0.80 to 0.87. Limits of agreement analysis on actual and predicted VO2 values (bias +/- 1.96 x S(diff)) were 3.4 ml x kg(-1) x min(-1) (+/- 10.7), 2.4 ml x kg(-1) x min(-1) (+/- 9.9), and 3.7 ml x kg(-1) x min(-1) (+/- 12.8) (trials 1, 2, and 3, respectively) of RPE range 9-17. Results suggest that a sub-maximal, perceptually guided graded exercise test provides acceptable estimates of VO2(max) in young to middle-aged sedentary males.  相似文献   

The effect of scratches and cuts on the strength of motion picture film     

S.E. Sheppard  S.S. Sweet 《Journal of The Franklin Institute》1926,201(5):638

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Characteristics and anomalies of emulsions on development     

S.E. Sheppard 《Journal of The Franklin Institute》1926,201(5):637-638

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