The generation of new high angle boundaries during the hot torsional deformation of aluminium

The crystallographic rotation field for deformation in torsion is such that it is possible for orientations close to stable orientations to rotate away from the stable orientation. A Taylor type model was used to demonstrate that this phenomenon has the potential to transform randomly generated low-angle boundaries into high-angle boundaries. After imposing an equivalent strain of 1.2, up to 40% of the simulated boundaries displayed a disorientation in excess of 15°. These high-angle boundaries were characterised by a disorientation axis close to parallel with the sample radial direction. A series of hot torsion tests was carried out on 1050 aluminium to seek evidence for boundaries formed by this mechanism. A number of deformation-induced high-angle boundaries were identified. Many of these boundaries showed disorientation axes and rotation senses similar to those seen in the simulations. Between 10% and 25% of all the high-angle boundary present in samples twisted to equivalent strains between 2 and 7 could be attributed to the present mechanism.

Review of applications of the Cutting Angle methods

The theory of abstract convexity provides us with the necessary tools for building accurate one-sided approximations of functions. Cutting angle methods have recently emerged as a tool for global optimization of families of abstract convex functions. Their applicability have been subsequently extended to other problems, such as scattered data interpolation. This paper reviews three different applications of cutting angle methods, namely global optimization, generation of nonuniform random variates and multivatiate interpolation.

Priming vs. rhyming : orthographic and phonological representations in the left and right hemispheres

The right cerebral hemisphere has long been argued to lack phonological processing capacity. Recently, however, a sex difference in the cortical representation of phonology has been proposed, suggesting discrete left hemisphere lateralization in males and more distributed, bilateral representation of function in females. To evaluate this hypothesis and shed light on sex differences in the phonological processing capabilities of the left and right hemispheres, we conducted two experiments. Experiment 1 assessed phonological activation implicitly (masked homophone priming), testing 52 (M = 25, F = 27; mean age 19.23 years, SD 1.64 years) strongly right-handed participants. Experiment 2 subsequently assessed the explicit recruitment of phonology (rhyme judgement), testing 50 (M = 25, F = 25; mean age 19.67 years, SD 2.05 years) strongly right-handed participants. In both experiments the orthographic overlap between stimulus pairs was strictly controlled using DICE [Brew, C., & McKelvie, D. (1996). Word-pair extraction for lexicography. In K. Oflazer & H. Somers (Eds.), Proceedings of the second international conference on new methods in language processing (pp. 45–55). Ankara: VCH], such that pairs shared (a) high orthographic and phonological similarity (e.g., not–KNOT); (b) high orthographic and low phonological similarity (e.g., pint–HINT); (c) low orthographic and high phonological similarity (e.g., use–EWES); or (d) low orthographic and low phonological similarity (e.g., kind–DONE). As anticipated, high orthographic similarity facilitated both left and right hemisphere performance, whereas the left hemisphere showed greater facility when phonological similarity was high. This difference in hemispheric processing of phonological representations was especially pronounced in males, whereas female performance was far less sensitive to visual field of presentation across both implicit and explicit phonological tasks. As such, the findings offer behavioural evidence indicating that though both hemispheres are capable of orthographic analysis, phonological processing is discretely lateralised to the left hemisphere in males, but available in both the left and right hemisphere in females.

Selecting the right integration of research into practice strategy

Healthcare professionals need to be cognizant of integration of research into practice literature to advance clinical practice. This article describes the strengths and limitations associated with 10 currently used integration of research into practice strategies and the issues that need to be considered when selecting an appropriate strategy. Selecting the right strategy that ensures the uptake of best available evidence is an essential component of developing evidence-based practice and ultimately improving patient care.

Extended cutting angle method of global optimization

Methods of Lipschitz optimization allow one to find and confirm the global minimum of multivariate Lipschitz functions using a finite number of function evaluations. This paper extends the Cutting Angle method, in which the optimization problem is solved by building a sequence of piecewise linear underestimates of the objective function. We use a more flexible set of support functions, which yields a better underestimate of a Lipschitz objective function. An efficient algorithm for enumeration of all local minima of the underestimate is presented, along with the results of numerical experiments. One dimensional Pijavski-Shubert method arises as a special case of the proposed approach.

Freedom of political communication, public officials and the emerging right to personal privacy in Australia

In recent times Australian courts have demonstrated a willingness to fashion a right to personal privacy at common law. The Australian Law Reform Commission has noted this impOt1ant development and said it was likely to continue in the absence of legislative action in the area. The aim of this article is to outline a theoretical framework to underpin and inform the development of this emerging right - howsoever framed - and the extent to which it is possible for the law to provide meaningful privacy protection to public officials under the Constitution.

Femoral sulcus angle and increased patella facet cartilage volume in an osteoarthritic population

Objective
The patellofemoral joint is an example of an incongruent articulation commonly affected by osteoarthritis (OA). The relationship between femoral sulcus angle and the development and progression of patellofemoral OA is unclear. The aim of this study was to examine the relationship between the femoral sulcus angle at baseline and patella cartilage volume at baseline and at 2-year follow-up among community based adults with established knee OA.

Methods
One hundred subjects had magnetic resonance imaging of their symptomatic knee at baseline and at 2-year follow-up. From these images, patella cartilage volume was determined. Radiographic skyline views of the patellofemoral joint were taken at baseline to measure the femoral sulcus angle.

Results
For every 1° increase in the femoral sulcus angle (i.e., as the sulcus angle became more shallow) there was an associated 9.1 mm3 (95% CI 3.1, 15.0) increase in medial patella cartilage volume at baseline (P = 0.003). There was a similar trend that approached statistical significance between the femoral sulcus angle and the lateral patella facet cartilage volume at baseline (P = 0.09). There was no association between the femoral sulcus angle at baseline and the change in patella cartilage volume over 2 years in either patellofemoral compartment.

Conclusion
These results infer that the femoral sulcus angle is a cross-sectional determinant of the amount of patella cartilage, but is not a major determinant of the annual change of patella cartilage volume among people with knee OA. These data suggest that a shallower sulcus in the context of established OA may be an advantageous anatomical variant. Further longitudinal studies are required to determine the role of the femoral sulcus angle in OA.

Identifying the "right patient" : nurse and patient perspectives on how to verify patient identity during medication administration

In this paper, we report on a research project funded by the Australian College of Mental Health Nurses’ and Bristol Myers Squibb Research Grant in 2007. We examined ways in which Mental Health Nurses could correctly identify patients during medication administration that promote medication safety and that are acceptable to both consumers and nurses. Central to the safe practice of medication administration are the “five rights” – giving the right drug, in the right dose, to the right patient, via the right route, at the right time. In non-psychiatric settings, such as medical and surgical inpatient units, the use of identification aids, such as wristbands, are common. In most Victorian psychiatric inpatient units, however, standardised identification aids are not used. Anecdotally, consumers dislike some methods of patient identification, such as wearing wrist bands, and some nurses perceive consumers’ rights are infringed through wearing personal identifiers. In focus groups, mental health consumers and Mental Health Nurses were invited to discuss their experiences of patient identification during routine psychiatric inpatient medication administration. They were also asked their opinions of, and preferences for, different ways of verifying “right patient” during routine medication administration. In our paper, we will present the findings of a qualitative research project in which we explored the experiences, opinions, and preferences of mental health consumers and Mental Health Nurses towards methods of correctly identifying patients during medication administration.

Identifying the "right patient" : nurse and patient perspectives on how to verify patient identity during medication administration

In this paper, we report on a research project funded by the Australian College Mental Health Nurses’ and Bristol Myers Squibb Research Grant in 2007. We examined ways in which mental health nurses could correctly identify patients during medication administration that promote medication safety and that are acceptable to both consumers and nurses.

Central to the safe practice of medication administration are the “five rights”- giving the right drug, in the right dose, to the right patient, via the right route, at the right time. In non-psychiatric settings, such as medical and surgical inpatient units, the use of identification aids, such as wristbands, are common. In most Victorian psychiatric inpatient units, however, standardised identification aids are not used. Anecdotally, consumers dislike some methods of patient identification, such as wearing wrist bands, and some nurses perceive consumers' rights are infringed through wearing personal identifiers.

In focus groups, mental health consumers and mental health nurses were invited to discuss their experiences of patient identification during routine psychiatric inpatient medication administration. They were also asked their opinions of, and preferences for, different ways of verifying “right patient” during routine medication administration. In our paper, we will present the findings of a qualitative research project in which we explored the experiences, opinions, and preferences of mental health consumers and mental health nurses towards methods of correctly identifying patients during medication administration.

Lateral positioning for critically ill adult patients

We aim to assess the effect of the lateral position compared to other body positions on patient outcomes (mortality, morbidity and clinical adverse events during and following positioning) in critically ill adult patients. We will examine the single use of the lateral position (that is on the right or left side) and repeat use of the lateral position(s) in a positioning schedule (that is lateral positioning). We plan to undertake subgroup analysis for primary disease and condition, severity of illness, the presence of assisted ventilation and angle of lateral rotation.