This study investigated whether a predictive tool developed by authors in the United States (Konvalina, Stephens and Wileman) could be used with University students in Australia (in particular the Australian Capital Territory) to predict their success in first year University computing courses. It also investigated the effect of demographic and past academic factors in conjunction with, and instead of the predictive test. The study examined differences in performance between male/female students, English as a Second Language (ESL)/non-ESL students and full-time/part-time students. It also examined the effect of all the above factors on the continuing success of students in the course. While significant differences in first-time performance were found between ESL and non- ESL students, no differences were found between the other pairings. No differences were found between any of the groups in the continuing success in the course. The KSW Test, while being an indicator of first year success, was not a strong enough model to be able to be used as a predictive tool. The demographic and previous academic data from students recently at High School, in particular, the Tertiary Entrance Score, level of mathematics studied, and previous computing study, were found to be more useful as an indicator of success in fust year, explaining 53% of the variation in h a 1 unit score. In addition, 67% of the variation in continuing success in their course was also explained by the Tertiary Entrance Score, ASAT verbal and ASAT quantitative scores.

Variably dolomitized limestone samples from the Rundle Group in Western Alberta, Canada were deformed under a variety of confining pressures and at room temperature in a triaxial rock press. The aim of this research is to establish the mechanical behaviour and brittle constitutive laws of limestone and dolomite composites. This data can then be used to develop strength profiles of thrust faults in the Rocky Mountain Fold and Thrust Belt. For example, many of the thrust faults in the Canadian Foreland are composed of limestone–dolomite composites, yet the mechanical properties of these composites remain unknown. Sample protoliths were selected for their similar grain sizes and grain size distributions, low porosity and low silica content in order to best examine relationships between these parameters and the distribution of strain between the dolomite and calcite. This study shows that increasing dolomite content correlates to an increase in strength at low and medium confining pressures. At high confining pressures, distributed brittle deformation adds complexities that are attributed to textural controls. Microstructural analysis of deformed samples shows that at approximately thirty to forty-five weight percent dolomite is interconnected via a dolomite grain network that provides a load-bearing capacity to the dolomite. This load-bearing capacity correlates to dramatic jumps in the strength of dolomite–limestone composites observed with increasing confining pressures. Inherent weaknesses in calcite grains such as twin planes and cleavage intersections are exploited by fractures resulting in reduced peak strengths of calcite-rich composites. Calcite generally absorbs strain and distributes it into finer spaced fracture networks than in dolomite. In dolomitized rock that still contains calcite cleavage within dolomite is not exploited, rather transgranular cracks break dolomite down into irregular and angular particles. At near pure dolomite content and at high confining pressure dolomite will fracture and disaggregate along cleavage. Comminuted dolomite grains commonly show a larger distribution of sizes and have more irregular shapes than contiguous comminuted calcite grains. Comminuted calcite particles are commonly much smaller than comminuted dolomite grains and show more regular shapes and an even grain size distribution.