Appropriation in the name of art: is a quotation exception the answer?

The Australian Law Reform Commission is at present considering the scope of exceptions to copyright infringement. Its consideration will no doubt be influenced to some degree by the outcome in EMI Songs Australia Pty Ltd v Larrikin Music Publishing Pty Ltd (2011) 191 FCR 444; (2011) 90 IPR 50 which concerned the quotation of a musical phrase in a later musical work. This article addresses the problem of creative appropriations and the extent to which a quotation exception, consistent with Art 10 of the Berne Convention, should be incorporated into Australian law. In doing so it considers the practical application of such a quotation exception in European jurisdictions (most notably Germany) and suggests the form in which such an exception might be incorporated into Australian law.

Adaptive depletion for improvement of MPEG video compression

Traditional data compression algorithms for 2D images work using the information theoretic paradigm, attempting to reduce redundant information by as much as possible. However, through the use of a depletion algorithm that takes advantage of characteristics of the human visual system, images can be displayed using only half or a quarter of the original information with no appreciable loss of quality.

The characteristics of the human visual system that allows the viewer to perceive a higher rate of information than is actually displayed is known as the beta or picket fence effect. It is called the picket fence effect because its effect is noticeable when a person is travelling along a picket fence. Despite the person not having an unimpeded view of the objects behind the fence at any instant, as the person is moving, the objects behind the picket fence are clearly visible. In fact, in most cases the fence is hardly noticeable at all.

The techniques we have developed uses this effect to achieve higher levels of compression than would otherwise be possible. As a fundamental characteristic of the beta effect is the requirement that there is movement of the fence in relation to the object, the beta effect can only be used in image sequences where movement between the depletion pattern and objects within the image can be achieved.

As MPEG is the recognised standard by which image sequences are coded, compatibility with MPEG is essential. We have modified our technique such that it performs in conjunction with MPEG, providing further compression over MPEG.

Does the rate of foraging attempts predict ingestion rate for young-of-the-year brook trout (Salvelinus fontinalis) in the field?

To assess the costs and benefits of young fish adopting different behavioural tactics, field studies of juvenile salmonines have assumed that (but did not test whether) the rate of foraging attempts predicts ingestion rate. We tested this assumption by quantifying capture, ingestion, and rejection rates of potential prey items for individual young-of-the-year brook trout (Salvelinus fontinalis) in a lake. Overall, capture rate (a conservative estimate of the rate of foraging attempts) was only a fair predictor of overall ingestion rate (Kendall's 1 = 0.54) and only 46% of captured items (number/minute) were ingested. Surface capture rate was a poor predictor of surface ingestion rate (T = 0.27) and only 1% of captured items were ingested. In contrast, subsurface capture rate was an excellent predictor of subsurface ingestion rate (T = 0.75) and 93% of captured items were ingested. No benthic prey captures were observed. Fish that ingested a low proportion of captured items spent a greater proportion of time moving, moved faster, and pursued prey further than fish that ingested a higher proportion of captured items. Rejection of captured items can represent a significant and little appreciated component of the foraging cycle for young salmonid fishes.

An insight into research performance through a citation counting analysis

Prior studies on academic performance predominantly concentrated on ranking universities and geographical regions using publications in selected journals. Despite general agreement on journal rankings based on the number of citations, no extant articles analyze universities or countries on the basis of citations from publications in leading hospitality and tourism journals. This paper examined the number of citations that published articles from six leading journals in hospitality and tourism received during the 10-year period from 1996 to 2005. The affiliated universities, countries/regions, and geographical continents were then ranked to determine their level of academic performance. This paper provides an alternative insight into academic performance of research universities and countries.© 2014 The Authors.