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排序方式: 共有128条查询结果,搜索用时 15 毫秒
91.
H Bahramali E Gordon WM Li C Rennie J Wright R Meares 《Canadian Metallurgical Quarterly》1998,95(3-4):155-165
A number of studies have examined across-trial averaged late component. Event Related Potentials (EPR) and Reaction Times (RT) in response to multiple target stimuli. In this study, within-trial relatively fast and slow sub averages are additionally examined, in 20 patients with schizophrenia and 20 age and sex matched controls. A conventional auditory oddball paradigm. Across-trial ERP average analysis showed smaller N200 amplitude and delayed latency (but larger P200 amplitude) in patients with schizophrenia compared with controls. Within-trial ERP analysis revealed a number of additional findings. Controls showed distinctive differences in fast compared with slow ERP sub averages (smaller P200 amplitude, increased N200/P300 amplitudes and earlier latencies). The schizophrenic group on the other hand, showed relatively similar fast versus slow subaverages (no differences in P200 amplitude and N200 latency). In addition, between-group (within-trial) analyses highlighted significant differences in earlier stages of processing (compared with across-trial averages) in both fast and slow subaverages (increased N100 amplitude in controls). The complementary within-trial (compared with across-trial) data are interpreted with respect to a possible disturbance in inhibitory function in patients with schizophrenia. 相似文献
92.
John Rennie Short Lisa M. Benton William Luce Judith Walton 《Journal of Architectural Education》2013,67(4):244-253
There is increasing competition between cities to attract investment. Older industrial cities have a particularly difficult time. It is in this context that there is an attempt to rewrite the meaning of the industrial city. Constructing a new, more positive picture involves marketing a new image, constructing a new environment, and reorienting a city's relationship with its physical environment. The process involves many actors, from business leaders eager to stimulate investment to local citizens' groups seeking to reclaim community space. This article examines these issues in the city of Syracuse, New York, and, in particular, documents the important changes in civic boosterism, the construction of a new iconography of the downtown, and the evolving discourse on environmental pollution. 相似文献
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Experimental measurements of the wavefronts of the light from a laser-induced breakdown (LIB) spark in non-moving air are presented and compared to spark dimensional data acquired from photographic measurements of the spark. The data show that the variation in the spark emitted wavefront between ignitions can be directly related to the motion of the spark volumetric centroid. The dominant modal components of the emitted wavefront variations are presented, as well as quantitative results for the magnitude of the wavefront variations. The results are relevant to the use of LIB as a light source for the measurement of optical aberrations such as those caused by compressible (i.e., "aero-optic") flows around an aircraft in flight, and data are shown indicating that LIB could be successfully used to measure the aberrating effect of compressible shear layers and boundary layers at typical cruise Mach numbers. 相似文献
95.
96.
Rennie David L.; Brewster Linda J.; Toukmanian Shaké G. 《Canadian Metallurgical Quarterly》1985,17(1):16
This study was based on C. R. Rogers's (1951) proposition that openness to and expressiveness of inner experiencing relates to the individual's ability to be sensitive to and acceptant of others. 34 participants in a human relations training program were first interviewed by experienced therapists. The Ss' capacities to process themselves as clients were assessed by use of an experiencing scale developed by E. T. Gendlin and E. M. Tomlinson (1961), and a process measure of this scale was used as a predictor of counseling skill acquisition during the program. It was found that there was no relationship between the predictor and skill acquisition during the initial phase of the training program. However, between the middle and final phase of the program, the High Mode Experiencing Ss sustained their facilitative communication despite a shift of training focus to action-oriented skills, whereas the facilitative communication of the Low Mode Experiencing Ss deteriorated during this period. It is concluded that the capacity to process themselves as clients may have little bearing on whether or not trainees can achieve low levels of facilitative functioning when these skills are explicitly addressed. However, this variable may have considerable bearing on the extent to which trainees can maintain the empathic attitude while extending their total range of functioning. (French abstract) (27 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
97.
Using stereological methods, two cerebral cortical areas from AIDS brains were investigated. Neuronal density, profile area of neurons, and perikaryon volume fraction were measured and compared to age-matched control brains. In the fronto-orbital cortex (area 11) of AIDS brains, a significant loss of neurons was seen. The perikaryon volume fraction was likewise decreased. The size of neurons did not differ between control and AIDS brains. In patients with clinical signs of progressive dementia and in brains with human immunodeficiency virus (HIV)-specific neuropathology (HIV-leukoencephalopathy and/or HIV-encephalitis) as compared to patients lacking these features, a small decrease in neuronal density was noted but this difference did not reach the level of statistical significance (P = 0.16). In the superior parietal lobule (area 7) of AIDS brains, no loss of nerve cells was noted. AIDS patients with progressive dementia and brains with HIV-specific neuropathology showed no difference in neuronal densities as compared to those without such features. We conclude that the fronto-orbital cortex, in contrast to the parietal cortex, is mainly damaged in AIDS brains. Neuronal loss was not significantly correlated with development of dementing symptoms and of HIV-specific neuropathology. 相似文献
98.
P Cerretelli D Shindell DP Pendergast PE Di Prampero DW Rennie 《Canadian Metallurgical Quarterly》1977,30(1-2):81-97
The halftimes (t1/2) of the VO2 on-and off-responses have been determined on 4 moderately active subjects (1) in arm cranking (VO2 congruent to 1 1/min). (2) in leg pedaling at 4 graded submaximal (VO2 congruent to 0.8 to 2.51/min) work loads, and (3) when superimposing arm cranking on preexisting leg pedaling, both in the supine and in the upright position. In supine experiments the mean t1/2 of the VO2 on-response was longer for arm cranking than for leg pedaling (64 vs 44-49 sec) at equal VO2; however, at the same percentage of arm and leg VO2 max the respective t1/2 were similar. In sitting experiments all t1/2 of the VO2 on-response were shorter than when supine, but the t1/2 for the arms were still slightly longer than those for the legs. When arm cranking was superimposed on preexisting leg pedaling, the t1/4 for arms was reduced both in supine (from 64 to 35-38 sec) and in the sitting position (from 44 to 40 sec). The halftime of the VO2 off-response were much shorter (20-32 sec) than those of the on-response and similar in all experiments. In all conditions the O2 deficits at work onset were considerably larger than the fast component of the corresponding O2 debts during the first minutes of recovery. The difference was totally accounted for by anaerobic glycolysis occurring early during the VO2 on-response, particularly in arm exercise. It is concluded that at submaximal work loads the O2 deficit is accounted for the fast component of the O2 debt plus the O2 equivalent of the early lactate production. 相似文献
99.
Timothy J. Rennie Vijaya G.S. Raghavan 《Chemical Engineering and Processing: Process Intensification》2010
A numerical study of a double-pipe helical heat exchanger was performed to ascertain the residence time, temperature, and processing uniformity for food processing applications. A range of laminar flow rates were used, with both parallel flow and counterflow configurations. Both heating and cooling in the inner tube were studied. Heating/cooling uniformity was estimated by using a first-order kinetics model for sterilization. Process uniformity is important in the quest for high quality product and this report is a first study for the uniformity in double-pipe helical heat exchangers. 相似文献
100.