Practitioner-led research: experiences with Learning Platforms

This article describes Learning Platforms, a structured effort by the Dutch-based agency SNV to encourage its expert advisers to engage in reading and analysing academic research related to the context in which they work, and to undertake research of their own. Although the practitioners' ability to apply their research to their daily practice, and the organisation's ability to absorb the findings of the research as part of its ways of working, have been partial or limited, the approach has the potential to bring academic and practice-based endeavour together in ways that are mutually beneficial.     

A Test of Case Linkage Principles with Solved and Unsolved Serial Rapes

Case linkage involves identifying crime series on the basis of behavioral similarity and distinctiveness. Research regarding the behavioral consistency of serial rapists has accumulated; however, it has its limitations. One of these limitations is that convicted or solved crime series are exclusively sampled whereas, in practice, case linkage is applied to unsolved crimes. Further, concerns have been raised that previous studies might have reported inflated estimates of case linkage effectiveness due to sampling series that were first identified based on similar modus operandi (MO), thereby overestimating the degree of consistency and distinctiveness that would exist in naturalistic settings. We present the first study to overcome these limitations; we tested the assumptions of case linkage with a sample containing 1) offenses that remain unsolved, and 2) crime series that were first identified as possible series through DNA matches, rather than similar MO. Twenty-two series consisting of 119 rapes from South Africa were used to create a dataset of 7021 crime pairs. Comparisons of crime pairs that were linked using MO vs. DNA revealed significant, but small differences in behavioral similarity with MO-linked crimes being characterized by greater similarity. When combining these two types of crimes together, linked pairs (those committed by the same serial offender) were significantly more similar in MO behavior than unlinked pairs (those committed by two different offenders) and could be differentiated from them. These findings support the underlying assumptions of case linkage. Additional factors thought to impact on linkage accuracy were also investigated.     

The effect of annealing on the variation of glass refractive index

The variation of refractive index (RI) over a non-toughened, float pane of glass and a toughened, float pane of glass was investigated. The two panes of colourless, float glass were cut into 150 5 cm × 5 cm squares. The pre- and post-annealing RI values from three random areas from each square were measured. Bayesian statistical hierarchical modelling of the results showed that for the non-toughened, float glass pane annealing increased the variability in RI by a factor of 1.29-1.58, with a mean of 1.43 (with 95% probability); and for the toughened, float pane of glass annealing decreased the variability in RI by a factor of 0.63-0.76, with a mean of 0.69 (with 95% probability). In addition it was found that although there were no systematic differences in ΔRI across either pane of glass, there were observable differences across both panes of glass. These results provide information regarding the expected RI variation over entire panes of both non-toughened and toughened float window glass for both pre- and post-annealing RI measurements.     

Space Matters: Designing Better Electoral Systems for Emerging Democracies

Although the holding of founding and subsequent elections is essential for any transition from authoritarian to democratic rule, the comparative literature on electoral system design is limited on the experience of "Third Wave" democratizers. This is especially true with respect to the interactive effects between the choice of electoral system and the spatial, i.e., geographic, distribution of the vote—a critical factor that shapes electoral outcomes in all societies, but particularly in emerging democracies because many are plural and agrarian societies. Political elites in these countries have also rarely considered the impact of alternative electoral systems when selecting a system for their country. This article addresses these gaps in the literature and practice by presenting a computational model known as a spatial decision support system or SDSS that both explores these interactive effects and facilitates electoral design. The utility of the model is then demonstrated with data from Kenya and South Africa—two emerging democracies where issues posed by the spatial distribution of the vote have given rise to demands for redesigning or modifying the electoral system.     

NEGOTIATING TECHNOLOGICAL CHANGE IN THE COMMONWEALTH BANKING CORPORATION

Abstract: In May and June 1981 Automatic Telling Machines (ATMs) were introduced into sixty-one branches of the Commonwealth Banking Corporation in New South Wales, Victoria and the ACT. In contrast to union bans which had been imposed on ATMs in the private banking sector, the Commonwealth Bank Officers' Association (CBOA) actively supported the use of this new technology. After outlining the industry industrial relations system this paper examines the three-way process of negotiations, involving the union, management and the federal government, which led to the introduction of ATMs. The terms of the agreement reached — a 19 day working month, early voluntary retirement after age 55 and a joint consultative committee on technological change in return for supports for ATMs — are analysed and the factors which contributed to the absence of industrial conflict during the negotiations are discussed.