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81.
A stable standard suspension for red-cell counts 总被引:3,自引:0,他引:3
82.
A significant correlation found in a pilot study between heart rate and digit Symbol performance was utilized to investigate effects of type of arousal induction on performance. 60 Ss were arranged in a 3 X 2 factorial design, divided into high and low drive via heart rate. Ss first performed on a Digit Symbol task; followed by a frustrating experience, physical exertion, or nonfrustrating task; followed by readministration of an alternate form of the 1st Digit Symbol problem. The results showed that the relation between activation and performance, in most instances followed the hypothetical inverted U function. (17 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
83.
84.
EA Maguire CD Frith N Burgess JG Donnett J O''Keefe 《Canadian Metallurgical Quarterly》1998,10(1):61-76
The availability of a number of new immunosuppressive drugs has resulted in significant improvements in the outcome of kidney transplantation. Currently 1-year graft survival rate for cadaver kidney transplants is approximately 85%. A number of new agents are presently in clinical studies. This article reviews the currently available agents and examines various aspects of induction and maintenance immunosuppressive therapy, and the treatment of acute rejection episodes. In addition, the agents currently in clinical trials and future directions in immunosuppressive therapy are discussed. 相似文献
85.
86.
Multistage induction mass accelerator 总被引:1,自引:0,他引:1
87.
88.
We have previously presented a rapid, high yield method for the large scale purification of homogeneous RNA polymerase II from wheat germ (Jendrisak, J.J., and Burgess, R.R.(1975), Biochemistry 14, 4639), and we now report a detailed study of its subunit structure. Polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate indicates that polypeptides with molecular weights of 220 000, 140 000, 40 000, 27 000, 25 000, 21 000, 20 000, 17 800, 17 000, 16 500, 16 000, and approximately 14 000 are associated with the enzyme. Two-dimensional polyacrylamide gel electrophoresis, by which the subunits were separated in the first dimension in the presence of 8 M urea at pH 8.7 and in the second dimension in the presence of 0.1% sodium dodecyl sulfate, indicates that the 40 000 molecular weight component is composed of two nearly identical polypeptides and that the low molecular weight components (smaller than or equal to 40 000) are acidic proteins except for the 25 000 molecular weight polypeptide. 相似文献
89.
In a recent study, J. Tedeschi and T. Levy (see record 1971-28825-001) related responsiveness to social reinforcement in chance vs. skill tasks to previous findings of external control in lower-class blacks and internal control in middle-class whites. In the present article, P. Burgess examines the rationale behind Tedeschi and Levy's predictions, questions the validity of their experimental paradigm, and suggests that their results do not provide adequate support for their conclusions. In a separate article, Tedeschi & Levy reply to Burgess's criticisms. (22 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
90.
Muir Wood R Drayton M Berger A Burgess P Wright T 《Philosophical transactions. Series A, Mathematical, physical, and engineering sciences》2005,363(1831):1407-1422
Probabilistic catastrophe loss modelling techniques, comprising a large stochastic set of potential storm-surge flood events, each assigned an annual rate of occurrence, have been employed for quantifying risk in the coastal flood plain of eastern England. Based on the tracks of the causative extratropical cyclones, historical storm-surge events are categorized into three classes, with distinct windfields and surge geographies. Extreme combinations of "tide with surge" are then generated for an extreme value distribution developed for each class. Fragility curves are used to determine the probability and magnitude of breaching relative to water levels and wave action for each section of sea defence. Based on the time-history of water levels in the surge, and the simulated configuration of breaching, flow is time-stepped through the defences and propagated into the flood plain using a 50 m horizontal-resolution digital elevation model. Based on the values and locations of the building stock in the flood plain, losses are calculated using vulnerability functions linking flood depth and flood velocity to measures of property loss. The outputs from this model for a UK insurance industry portfolio include "loss exceedence probabilities" as well as "average annualized losses", which can be employed for calculating coastal flood risk premiums in each postcode. 相似文献