3,363 research outputs found
Perceptual bias, more than age, impacts on eye movements during face processing
Consistent with the right hemispheric dominance for face processing, a left perceptual bias (LPB) is typically demonstrated by younger adults viewing faces and a left eye movement bias has also been revealed. Hemispheric asymmetry is predicted to reduce with age and older adults have demonstrated a weaker LPB, particularly when viewing time is restricted. What is currently unclear is whether age also weakens the left eye movement bias. Additionally, a right perceptual bias (RPB) for facial judgments has less frequently been demonstrated, but whether this is accompanied by a right eye movement bias has not been investigated. To address these issues older and younger adults’ eye movements and gender judgments of chimeric faces were recorded in two time conditions. Age did not significantly weaken the LPB or eye movement bias; both groups looked initially to the left side of the face and made more fixations when the gender judgment was based on the left side. A positive association was found between LPB and initial saccades in the freeview condition and with all eye movements (initial saccades, number and duration of fixations) when time was restricted. The accompanying eye movement bias revealed by LPB participants contrasted with RPB participants who demonstrated no eye movement bias in either time condition. Consequently, increased age is not clearly associated with weakened perceptual and eye movement biases. Instead an eye movement bias accompanies an LPB (particularly under restricted viewing time conditions) but not an RPB
Effects of Irradiation Temperature and Dose Rate on the Mechanical Properties of Self-Ion Implanted Fe and Fe-Cr Alloys
Pure Fe and model Fe-Cr alloys containing 5, 10 and 14%Cr were irradiated
with Fe+ ions at a maximum energy of 2MeV to the same dose of 0.6dpa at
temperatures of 300 C, 400 C and 500 C, and at dose rates corresponding to 6 x
10-4 dpa/s and 3 x 10-5 dpa/s. All materials exhibited an increase in hardness
after irradiation at 300 C. After irradiation at 400 C, hardening was observed
only in Fe-Cr alloys, and not in the pure Fe. After irradiation at 500 C, no
hardening was observed in any of the materials tested. For irradiations at both
300 C and 400 C, greater hardening was found in the Fe-Cr alloys irradiated at
the lower dose rate. Transmission electron microscopy and atom probe tomography
of Fe 5%Cr identified larger dislocation loop densities and sizes in the alloy
irradiated with the high dose rate and Cr precipitation in the alloy irradiated
with the low dose rate.Comment: 42 pages, 6 figure
Report on the Findings of the 2004 Australian National eProcurement Survey
This report highlights the key findings from the 2004 Australian National eProcurement Survey. The aim of the 2004 Australian National eProcurement Survey is to establish the nature, extent and adoption profile of eProcurement strategies and processes of Australian organisations.Australian Research Council (Grant No. LP0214841
Report on the Findings of the 2004 Australian National eProcurement Survey
This report highlights the key findings from the 2004 Australian National eProcurement Survey. The aim of the 2004 Australian National eProcurement Survey is to establish the nature, extent and adoption profile of eProcurement strategies and processes of Australian organisations.Australian Research Council (Grant No. LP0214841
Ariel - Volume 2 Number 3
Editors
Delvyn C. Case, Jr.
Paul M. Fernhoff
News Editors
Richard Bonanno
Daniel B. Gould
Robin A. Edwards
Lay-Out Editor
Carol Dolinskas
Sports Editor
James J. Nocon
Contributing Editors
Michael J. Blecker
Lin Sey Edwards
Jack Guralnik
W. Cherry Light
Features Editor
Steven A. Ager
Donald A. Bergman
Stephen P. Flynn
Business Manager
Nick Greg
Report on the findings of the 2005-2006 Australian National e-Procurement Survey
The report presents the key results and findings of the 2005-2006 Australian National e-Procurement Survey.The aim of the 2005-2006 survey is to build on the findings of the 2004 survey and establish the nature, extent and adoption profile of e-procurement strategies and processes within Australian organisations. It seeks to identify e-procurement adoption patterns by activities, product types and technologies.The Australian Research Council (Grant No. LP0214841
Initial Vibration Analysis of the Advanced Stirling Radioisotope Generator's (ASRG's) Affect on Spacecraft Instruments
Assess if nominal Advanced Stirling Radioisotope Generator (ASRG)
vibration levels are sufficiently benign for unimpeded spacecraft
instrument operation
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