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Following the rapid demise of local coalmining in the 1950s and early 1960s, the former coal towns of the Cessnock area have survived in their newfound dormitory role, with cheap serviced housing acting as a major constraint on out-migration and an incentive for in-migration for low-income householders, mainly engaged in external commuting or outside the workforce. Behavioural responses to widening local job deficits in the early 1960s were reported in this journal (Holmes, 1965). From household surveys and other sources, Holmes examined the interplay between individual, household and locality variables and presented a spectrum of projected future outcomes for localities, according to accessibility, size and service provision, either attached to the Newcastle-Maitland labour market as low-income outer suburbs or experiencing varying ra...
In most organisations, outcomes of personnel selection will not always be known, and therefore the selection officer has access to partial feedback only. In personnel selection, feedback, or knowledge of results, is more likely to follow a decision to hrie than a decision to reject, particularly if the applicant was unsuitable. The present study investigated efefcts of asymmetric partial feedback on decision-making performance using an artifical personnel selection task.
An image segmentation scheme is shown to be exceptionally successful through the application of high-level knowledge of the required image objects (cell nuclei). By tuning the algorithm's single parameter, it is shown that the performance can be maximised for the dataset, but leads to individual failures that may require alternative choices. A second stage is introduced to process each of the resulting segmentations obtained by varying the parameter over the working range. This stage gives a Bayesian interpretation of the results which indicates the probable accuracy of each of the segmentations that can then be used to make a decision upon whether to accept or reject the segmentation.
Analysis of return and onwards migration flows has typically relied upon lifetime migration definitions. Both Canada and Australia have collected data on usual place of residence both one and five years prior to the census, which provide a richer source of information on return and onwards moves. Utilizing data drawn from complementary sources, this article examines the incidence, composition and spatial patterning of return and onwards migration at the state and provincial level in Canada and Australia over the period of 1986–1990–1991. Results indicate a high degree of symmetry in these processes between the two countries. While many of the findings are consistent with those derived from analysis of lifetime data, we find that one quarter to one third of return moves were to the original (1986) dwelling, indicating a planned return r...
Addressing the preservation and long-term access issues for digital resources is one of the key challenges facing informational organisations such as libraries, archives, cultural institutions and government agencies today. A number of major initiatives and projects have been established to investigate or develop strategies for preserving the burgeoning amounts of digital content being produced. To date, the alternative preservation approaches have been based on emulation, migration and metadata - or some combination of these. Most of the work has focussed on digital objects of a singular media type: text, HTML, images, video or audio and to date few usable tools have been developed to support or implement such strategies or policies. In this paper we consider the preservation of composite, mixed-media, objects, a rapidly growing class...
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