Concept design of a novel tactile probe tip for down scaled 3D CMMs

Although coordinate metrology has reached a very high state of development concerning versatility and accuracy for common engineering parts, a high precision capability with nano scale resolution and accuracy is often hard to achieve when it is required to measure very small parts and features. The limiting component is the bulky probing system of traditional CMMs (coordinate measuring machines). In order to satisfy increasing demand for highly accurate geometrical measurements on small parts and small structures, a new measuring probe of high sensitivity and small geometrical dimension with low contact forces needs to be developed. In this paper, a novel probing system, which combines a FBG (Fibre Bragg Grating) embedded optical fibre tactile probe with an optical sensing technique, has been proposed. With the sensor elements integrated into the probe tip directly, the system sensitivity can be increased significantly. A preliminary theoretical analysis of the sensitivity of the FBG fibre sensor under axial and lateral end point loading has been presented and the results show that this micro scale probe has great potential to realize a resolution of 1nanometer on geometrical measurement of small parts.

A cross-cultural examination of social and sexual behaviour in High Functioning Autism and Down Syndrome

The focus of this research was to obtain an understanding of the social and sexual behaviour of adolescents with High Functioning Autism (HFA) or Down Syndrome (DS) in comparison to Typically Developing (TD) adolescents across cultures. The findings highlight the importance of cross-cultural research and indicate the need for sex education. The portfolio presents four case studies which support the proposition that insecure attachment is only likely to lead to depression in the presence of socially-related and other psychological difficulties, since not all insecurely attached children develop depressive symptoms.

Review of Eileen Sheehan : Down the sunlit hall, Doghouse

Review of "Down the Sunlit Hall, Doghouse" by Eileen Sheehan. ISBN 9780955200397

Wetland conservation in the Murray–Darling Basin – is it going down the drain?

This Editorial aims to highlight one of the most serious threats to Australian avifauna in recent times.

The right to an impartial hearing trumps the social imperative of bringing accused to trial even 'down under'

Accused persons who are subjected to a saturation level of negative media coverage may be denied an impartial hearing, which is perhaps the most important aspect of the right to a fair hearing. Despite this, the courts have generally held that the social imperative of prosecuting accused trumps the interests of the accused. The justification for an impartial hearing stems from the repugnance of convicting the innocent. Viewed dispassionately, this imperative is not absolute, given that every legal system condones procedures which result in the conviction of some innocent people. While the importance of guarding against wrongful convictions has been overstated, the imperative to bring to trial all accused has been even more exaggerated. The legal system has displayed a capacity to deal with cases where the guilty walk free. The institutional integrity of the criminal justice system would be significantly compromised by convictions that are tarnished by pre-judgment. Confidence in the criminal justice system is more important than individual criminal accountability. The inability to receive an impartial hearing should result in a permanent stay. The only exception is where the alleged crime has the capacity to cause widespread fear or social unrest. This only applies in relation to serious acts of terrorism. This article focuses on recent legal fair trial developments in Australia, however, the analysis, reasoning and conclusion applies in relation to all jurisdictions where juries determine guilt and innocence.

Beyond ‘good’ and ‘evil’: breaking down binary oppositions in holocaust representations of ‘privileged’ Jews

In 1986, Auschwitz survivor Primo Levi’s paradigmatic essay entitled ‘The Grey Zone’ highlighted the complex and sensitive issue of so-called ‘privileged’ Jews, an issue that remains at the margins of popular and academic discourse on the Holocaust. ‘Privileged’ Jews include those prisoners in the Nazi concentration camps and ghettos who held positions that gave them access to material and other benefits whilst compelling them to act in ways that have been judged both self-serving and harmful to fellow inmates. The unprecedented ethical dilemmas that confronted ‘privileged’ Jews may be viewed as exemplifying the ‘limit’ events or experiences that were characteristic of the Holocaust, situating them at the threshold of representation, understanding and judgement. Levi’s essay singles out history and film as particularly predisposed to a simplifying trend he identifies – the ‘Manichean tendency which shuns half-tints and complexities,’ and resorts to the black-and-white binary opposition(s) of ‘friend’ and ‘enemy,’‘good’ and ‘evil.’ In the case of ‘privileged’ Jews in particular, such binary oppositions would appear to be inadequate. Adopting an interdisciplinary approach that incorporates the fields of history, philosophy and literature, this paper analyses representations of ‘privileged’ Jews, particularly those prisoners of the Sonderkommandos who were forced to work in the crematoria. The paper demonstrates how easily the boundary Levi maps out for moral judgement can be crossed. It is shown that while Levi suggests judgement should be suspended when confronted with the experiences of victims in extremis, moral evaluations of ‘privileged’ Jews permeate discussions and representations of the Holocaust. When confronted with such emotionally and morally freighted issues, judgement may itself be seen as a ‘limit of representation.’

Bridie McCarthy reviews Going down swinging and indigo

Review of two literary periodicals published in Australia.