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The latency between the appearance of a visual target and the start of the saccadic eye movement made to look at it varies from trial to trial to an extent that is inexplicable in terms of ordinary 'physiological' processes such as synaptic delays and conduction velocities. An alternative interpretation is that it represents the time needed to decide(More)
The Legs Lake shear zone is a crustal-scale thrust fault system in the western Canadian Shield that juxtaposes high-pressure (1.0+ GPa) granulite facies rocks against shallow crustal (< 0.5 GPa) amphibolite facies rocks. Hangingwall decompression is characterized by breakdown of the peak assemblage Grt + Sil + Kfs + Pl + Qtz into the assemblage Grt + Crd +(More)
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o The Late Permian mass extinction was not only(More)
As an analog to the bending case published in an earlier paper, the stress singularities in plates subject~d to extension in their plane ai:e discussed. Three sets of boundary conditions on the radial edges are investigated,: free-free, clamped-clamped, and clamped-free. Providing lhe vertex angle is less than 180 degrees, it is found that unbounded(More)
Both nitrogen dioxide (NO 2) and ozone (O 3) are powerful oxidants in ambient air that are intimately linked through atmospheric chemistry and which continuously interchange over very short timescales. Based upon atmospheric chemistry alone, there is a strong, a priori, reason for considering O 3 and NO 2 together in epidemiological studies, rather than(More)
The general solution to the Bloch equation in the rotating frame which includes the effects of relaxation during a constant amplitude, off-resonance rf field has been developed. The solution is used to monitor the transient approach to steady-state saturation levels during off-resonance irradiation applied continuously or in pulses to systems with arbitrary(More)
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