Utilizing a Virtual Reality Matrix in Medical Education.

Virtual reality (VR) is an emerging technology that has demonstrated incredible value within medical education. However, medical institutions adopting VR as a learning tool need to ensure that the immersive technology product they pick possesses standard usability criteria. The current literature is limited in defining what specific criteria institutions should look for, or how to select between various VR products.

Statistical Shape Modelling the In Vivo Location of Acetabular Wear in Retrieved Hip Implants.

Edge-wear in acetabular cups is known to be correlated with greater volumes of material loss; the location of this wear pattern in vivo is less understood. Statistical shape modelling (SSM) may provide further insight into this. This study aimed to identify the most common locations of wear in vivo, by combining CT imaging, retrieval analysis and SMM.

Prehospital Hypertonic Saline Administration After Severe Traumatic Brain Injury.

A 25-year old male paient was critically injuried in a high speed motor vehicle collision over an hour from the nearest trauma center. Paramedics diagnosed the patient with a traumatic brain injury and increasing intracranial pressure and transported the patient to a predesignated landing zone for helicopter intercept. During transport paramedics initiated a severe traumatic brain injury protocol which included the adminisration of 3% hypertonic saline.

Victims' barriers to discussing domestic violence in clinical consultations: a qualitative enquiry.

Victims of domestic violence frequently attend health care facilities. In many cases, their abusive experience is neither disclosed nor discussed during clinical consultations. This study examined the barriers faced by women when discussing abuse with health care providers, specifically in cases involving Malaysian women with a history of domestic violence.

What is the 'dark figure' of child homicide and how can it be addressed in Australia?

Child injury, regardless of intent, is a major public health issue in Australia and elsewhere. Child protection and injury prevention policies and practices are implemented in most countries in an attempt to manage and reduce the incidence of both intentional and unintentional injuries. While these systems are thought to assist in improving protection from violence, injury and neglect, one of the major limitations in understanding the effectiveness of child protection policy in Australia is a lack of reliable national data on child abuse and neglect.

Ordering in stretch-tunable polymeric opal fibers.

We demonstrate the production of high-quality polymer opal fibers in an industrially-scalable process. These fibers exhibit structural color, based on the self-assembly of sub-micron core-shell particles, with a spectrum which is stretch-tunable across the visible region. The internal substructure and ordering of fibers, as inferred from variations in spectral bandwidth, is studied using dark-field microscopy.

Low Reynolds number turbulence in nonlinear Maxwell-model fluids.

A generalized nonlinear Maxwell model which had previously been analyzed for plane Couette geometry is here applied to a lid-driven cavity flow. The full three-dimensional hydrodynamical problem is treated numerically. Depending on the relevant model parameters, both smooth laminar and low Reynolds number turbulent flows are found, strikingly similar to the experimentally observed elastic turbulence phenomena in polymer solutions.

'It's been really, really hard': a qualitative study of the health problems of people receiving emergency relief in Australia.

The aim of the research reported in this paper was to explore the perspectives and insights of emergency relief recipients in relation to their complex health problems, which had contributed to their position of needing to seek emergency relief. The sample consisted of 20 adults aged between 19 and 51 years who had received emergency relief in a regional city in Victoria, Australia. Non-probability sampling was used, employing the convenience sampling procedure.

Shear-induced chaos in nonlinear Maxwell-model fluids.

A generalized model for the behavior of the stress tensor in non-Newtonian fluids is investigated for spatially homogeneous plane Couette flow, showing a variety of nonlinear responses and deterministic chaos. Mapping of chaotic solutions is achieved through the largest Lyapunov exponent for the two main parameters: The shear rate and the temperature and/or density. Bifurcation diagrams and stability analysis are used to reveal some of the rich dynamics that can be found.

Identification of a novel FcgammaRIII receptor that is up-regulated in fetal wound healing.

The mid-gestation fetus is able to heal skin wounds rapidly and without scarring, an ability that is lost as development proceeds. The aim of this study was to identify novel genes involved in this process. We established an ex vivo wound model from embryonic rats and showed that over 72 hours, embryonic day 17 wounds reepithelialized and closed whereas day 19 wounds did not.

Nipple-areolar pigmentation: histology and potential for reconstitution in breast reconstruction.

The makeup of nipple-areolar skin, in terms of its melanin and melanocyte content has not previously been established. This histological information is required if pigmentation of the reconstructed nipple-areola is to be successful in post-mastectomy breast reconstruction. We describe examination of 200 parallel sections of nipple-areolar skin of 20 women using histochemical (Masson-Fontana) and immunohistochemical (Mel-5) techniques, evaluated using quantitative image analysis.

Betacellulin promotes growth of the gastrointestinal organs and effects a diuresis in normal rats.

Betacellulin is a relatively new member of the epidermal growth factor peptide family, however, its function remains poorly defined. We investigated its physiological effects in rats implanted with pumps to deliver vehicle or recombinant rat betacellulin [46 microg/day] for 7 days. At kill, blood and gastrointestinal tissues were collected for determinations of betacellulin levels, proliferation (bromodeoxyuridine-BrdU incorporation) and growth.