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Full-Text Articles in Social and Behavioral Sciences
Arousal And Activation Effects On Physiological And Behavioral Responding During A Continuous Performance Task, Jacqueline A. Rushby, Robert J. Barry, Adam R. Clarke, Mohammad Vaezmousavi
Arousal And Activation Effects On Physiological And Behavioral Responding During A Continuous Performance Task, Jacqueline A. Rushby, Robert J. Barry, Adam R. Clarke, Mohammad Vaezmousavi
Faculty of Health and Behavioural Sciences - Papers (Archive)
Based on previous work indicating different neural substrates, two aspects of energetic state, arousal and activation, have been conceptualised separately in our laboratory. Arousal has been defined as the energetic state at any particular time, and task-related activation as the task-related change in state from resting baseline to the task situation. Both are reflected in electrodermal activity and measured by skin conductance level. Our previous studies in this area have indicated that physiological responses to stimuli in a task are dependent on the arousal level at the time of stimulus presentation, rather than the task-related activation. In contrast, performance on …
The Role Of Achievement Goal Orientation In The Development Of Self Efficacy During Computer Training, Anura Rohan Jayasuriya, Peter Caputi, Parri Gregory, Joseph A. Meloche
The Role Of Achievement Goal Orientation In The Development Of Self Efficacy During Computer Training, Anura Rohan Jayasuriya, Peter Caputi, Parri Gregory, Joseph A. Meloche
Faculty of Health and Behavioural Sciences - Papers (Archive)
Computer self-efficacy (CSE) is a key factor that is related to performance in computer training. A study was conducted to understand the effects of achievement goal orientation on computer self efficacy development with 166 trainees using a database application. Results show that trainees with different achievement motivation dispositions have affects on CSE development through different paths. Individuals with high mastery approach and performance approach dispositions have positive effects on pre training CSE. Mastery avoidance disposition increases Computer Anxiety (CA), this is not seen with performance avoidance. Performance approach affects CSE development by increasing effort. The study provides initial evidence for …
Reef Development At High-Latitudes During Multiple Interglacial Cycles: New Evidence From Lord Howe Island, Southwestern Pacific, David Kennedy, Colin D. Woodroffe, J -X Zhao
Reef Development At High-Latitudes During Multiple Interglacial Cycles: New Evidence From Lord Howe Island, Southwestern Pacific, David Kennedy, Colin D. Woodroffe, J -X Zhao
Faculty of Science - Papers (Archive)
Reef development during past Interglacial periods, when sea level and sea surface temperatures were higher than today, provide unique insights into how reef systems may respond to projected human-induced global warming. Lord Howe Island currently represents the southernmost limit of reef development in the Pacific. Reef growth of Pleistocene age has been inferred to have occurred around the island, and this paper provides the fi rst detailed descriptions on the character of this development. Two phases of reef growth are identifi ed, which occurred as isolated fringing reefs along the edge of the basaltic hills of the island. Uranium-series dating …
Influence Of Microalloying Precipitates On Bauschinger Effect During Uoe Forming Of Line Pipe Steels, Andrii Kostryzhev, Martin Strangwood, Claire L. Davis
Influence Of Microalloying Precipitates On Bauschinger Effect During Uoe Forming Of Line Pipe Steels, Andrii Kostryzhev, Martin Strangwood, Claire L. Davis
Faculty of Engineering and Information Sciences - Papers: Part A
Large diameter steel line pipes are generally produced by cold deforming hot rolled or thermomechanically controlled rolled (TMCR) plate by the three-stage 'UOE' process. Pipe strength has been found to increase or decrease relative to the plate, depending on the steel grade and plate processing history. The strength increase is due to work hardening whereas any decrease in strength arises from the Bauschinger effect due to the reverse cold deformation of the UOE process. The steel chemistry, through the presence of strengthening microalloy precipitates, and prior processing, through the size and distribution of microalloy precipitates and the presence of retained …
Numerical Simulation Of Temperature Field And Thermal Stress Field Of Work Roll During Hot Strip Rolling, Chang-Sheng Li, Hai-Liang Yu, Guan-Yu Deng, Xiang-Hua Liu, Guo-Dong Wang
Numerical Simulation Of Temperature Field And Thermal Stress Field Of Work Roll During Hot Strip Rolling, Chang-Sheng Li, Hai-Liang Yu, Guan-Yu Deng, Xiang-Hua Liu, Guo-Dong Wang
Faculty of Engineering and Information Sciences - Papers: Part A
Based on the thermal conduction equations, the three-dimensional (3D) temperature field of a work roll was investigated using finite element method (FEM). The variations in the surface temperature of the work roll during hot strip rolling were described, and the thermal stress field of the work roll was also analyzed. The results showed that the highest roll surface temperature is 593 °C, and the difference between the minimum and maximum values of thermal stress of the work roll surface is 145. 7 MPa. Furthermore, the results of this analysis indicate that temperature and thermal stress are useful parameters for the …
Influence Of Dog-Bone Apex On Shape During Slab Horizontal Rolling Process, Hai-Liang Yu, Xiang-Hua Liu, Chang-Sheng Li, Guo-Dong Wang
Influence Of Dog-Bone Apex On Shape During Slab Horizontal Rolling Process, Hai-Liang Yu, Xiang-Hua Liu, Chang-Sheng Li, Guo-Dong Wang
Faculty of Engineering and Information Sciences - Papers: Part A
The deformation of slab with dog-bone shape during the horizontal rolling process was simulated using FEM, and the influences of apical dislocation of dog-bone on the slab spread as well as the minimum crop end loss and the lost width at slab head and tail were analyzed. The results show that with the increase in the apical dislocation of dog-bone (LA), the slab spread and the minimum crop end loss at slab head and tail decrease, while the lost width at slab head and tail increases. Meanwhile, the relationships of S/LA-LA, LH/LA-LA, WH/LA-LA, LT/LA-LA, and WT/LA-LA were obtained. © 2007 …
A Study Into The Use Of Computer Aided Assessment To Enhance Formative Assessment During The Early Stages Of Undergraduate Chemistry Courses, Simon B. Bedford, Gareth J. Price
A Study Into The Use Of Computer Aided Assessment To Enhance Formative Assessment During The Early Stages Of Undergraduate Chemistry Courses, Simon B. Bedford, Gareth J. Price
Faculty of Science, Medicine and Health - Papers: part A
A Virtual Learning Environment (WebCT and latter Moodle) was used to provide students with instant, meaningful feedback on their study of chemistry units during their first semester at University. Short multiple choice questions (MCQ's) were written covering each segment of material delivered in lectures and made available to students over the University computer intranet to allow "24/7" access. The most important aspect of the work was the feedback offered to students within the questions, which was written by undergraduate students to ensure its usefulness. The vast majority of the cohort used the MCQ's, most to gain formative feedback and some …