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Social Comparison Theory And People With Mild Intellectual Disabilities: It Is More Complex Than You Think, Roselyn M. Dixon, H Marsh, Rhonda Craven Jan 2006

Social Comparison Theory And People With Mild Intellectual Disabilities: It Is More Complex Than You Think, Roselyn M. Dixon, H Marsh, Rhonda Craven

Faculty of Education - Papers (Archive)

Social comparison theory offers an understanding of the effect of deinstitutionalisation on the development of self-concept for people with intellectual disabilities (Finlay & Lyons, 2000). Social comparison theory predicts that people with intellectual disabilities living in the community will make comparisons with non-disabled groups and as such their self-concept will decrease because of negative frame of reference effects (Tracey, 2002). However, there are indications that this conceptualisation may be too simplistic (Crocker & Major, 1989, Finlay & Lyons, 2000). Newer developments in social comparison theory and research emphasise the active nature of social comparisons (i.e. people have a choice in …


Comparison Of Channelized Hotelling And Human Observers In Determining Optimum Os-Em Reconstruction Parameters For Myocardial Spect, Karen L. Gilland, Benjamin M. W Tsui, Yujin Qi, Grant T. Gullberg Jan 2006

Comparison Of Channelized Hotelling And Human Observers In Determining Optimum Os-Em Reconstruction Parameters For Myocardial Spect, Karen L. Gilland, Benjamin M. W Tsui, Yujin Qi, Grant T. Gullberg

Faculty of Engineering and Information Sciences - Papers: Part A

The performance of the Channelized Hotelling Observer (CHO) was compared to that of human observers for determining optimum parameters for the iterative OS-EM image reconstruction method for the task of defect detection in myocardial SPECT images. The optimum parameters were those that maximized defect detectability in the SPECT images. Low noise, parallel SPECT projection data, with and without an anterior, inferior or lateral LV wall defect, were simulated using the Monte Carlo method. Poisson noise was added to generate noisy realizations. Data were reconstructed using OS-EM at 1 & 4 subsets/iteration and at 1, 3, 5, 7 & 9 iterations. …


Comparison Of Pseudo-Static And Pseudo-Dynamic Methods For Seismic Earth Pressures On Retaining Wall, D Choudhury, Sanjay S. Nimbalkar, J N Mandal Jan 2006

Comparison Of Pseudo-Static And Pseudo-Dynamic Methods For Seismic Earth Pressures On Retaining Wall, D Choudhury, Sanjay S. Nimbalkar, J N Mandal

Faculty of Engineering - Papers (Archive)

Design of retaining wall needs the complete knowledge of earth pressures for both active and passive conditions. Under earthquake condition, the design requires special attention to reduce the devastating effect of this natural hazard. But under seismic condition, the available literatures mostly give the pseudo-static analytical value of the earth pressures as an approximate solution to the real dynamic nature of the complex problem. In the present work, a recently developed pseudodynamic method, which incorporates time dependent effect of applied earthquake load and effect of shear and primary waves, is applied to study effect of variation of parameters like soil …


Comparison Of Virulence Gene Profiles Between Escherichia Coli Strains Isolated From Healthy And Diarrheic Swine, Mark R. Wilson, Xi Yang Wu, Idris Barchia, Karl A Bettelheim, Steven Driesen, Darren J. Trott, Toni A. Chapman, James J C Chin Jan 2006

Comparison Of Virulence Gene Profiles Between Escherichia Coli Strains Isolated From Healthy And Diarrheic Swine, Mark R. Wilson, Xi Yang Wu, Idris Barchia, Karl A Bettelheim, Steven Driesen, Darren J. Trott, Toni A. Chapman, James J C Chin

Faculty of Science - Papers (Archive)

A combination of uni- and multiplex PCR assays targeting 58 virulence genes (VGs) associated with Escherichia coli strains causing intestinal and extraintestinal disease in humans and other mammals was used to analyze the VG repertoire of 23 commensal E. coli isolates from healthy pigs and 52 clinical isolates associated with porcine neonatal diarrhea (ND) and postweaning diarrhea (PWD). The relationship between the presence and absence of VGs was interrogated using three statistical methods. According to the generalized linear model, 17 of 58 VGs were found to be significant (P < 0.05) in distinguishing between commensal and clinical isolates. Nine of the 17 genes represented by iha, hlyA, aidA, east1, aah, fimH, iroN(E. coli), traT, and saa have not been previously identified as important VGs in clinical porcine isolates in Australia. The remaining eight VGs code for fimbriae (F4, F5, F18, and F41) and toxins (STa, STb, LT, and Stx2), normally associated with porcine enterotoxigenic E. coli. Agglomerative hierarchical algorithm analysis grouped E. coli strains into subclusters based primarily on their serogroup. Multivariate analyses of clonal relationships based on the 17 VGs were collapsed into two-dimensional space by principal coordinate analysis. PWD clones were distributed in two quadrants, separated from ND and commensal clones, which tended to cluster within one quadrant. Clonal subclusters within quadrants were highly correlated with serogroups. These methods of analysis provide different perspectives in our attempts to understand how commensal and clinical porcine enterotoxigenic E. coli strains have evolved and are engaged in the dynamic process of losing or acquiring VGs within the pig population.


Comparison Of Small-Field Behaviour In Mgb2, Low And High Temperature Superconductors, Alexey V. Pan, S X. Dou Jan 2006

Comparison Of Small-Field Behaviour In Mgb2, Low And High Temperature Superconductors, Alexey V. Pan, S X. Dou

Australian Institute for Innovative Materials - Papers

Different types of superconductors have been investigated at small magnetic fields (Ba) over wide temperature (T) ranges at different Ba orientations. It has been shown that the temperature dependence of the characteristic field (B*), separating the Ba-independent critical current density (Jc) plateau (single vortex pinning regime) and the region with Jc(Ba) (collective pinning), can be attributed either to the temperature dependence of the magnetic penetration depth for Nb-film and MgB2bulk superconductors, or to thermally activated processes for Bi-based superconductors and YBa2Cu3O7−δ superconducting …