Stress-sensing and cytoprotection in ageing and disease. This project aims to unravel the mechanisms responsible for age- and disease-related responses to heart attacks and the efficacy of therapeutic approaches, while deepening our understanding of a novel, potent protective modality effective in aged hearts. This program will provide valuable basic knowledge, leading to more efficacious therapies.
Cytorefractometry - a new technique for refractive index tomography of living cells. An ultrahigh-resolution bifocal optical coherence refractometry is proposed, and will result to micron-scale-resolution refractive index tomography of living cells, termed cytorefractometry. This technique represents an extension from bifocal optical coherence refractometry that has recently shown a remarkable promise for direct, several-frames-per-second, motion-artifact-free determination of refractive index ....Cytorefractometry - a new technique for refractive index tomography of living cells. An ultrahigh-resolution bifocal optical coherence refractometry is proposed, and will result to micron-scale-resolution refractive index tomography of living cells, termed cytorefractometry. This technique represents an extension from bifocal optical coherence refractometry that has recently shown a remarkable promise for direct, several-frames-per-second, motion-artifact-free determination of refractive index in turbid media, including biological tissue in vivo. We propose to apply our novel technique to study tissue calcification, a serious problem in cardiology, by making use of the refractive index contrast mechanism. Calcification of smooth muscle cells and aorta subdermal implant models will be studied aiming for prevention of calcification-associated pathologies.Read moreRead less
Noval design of a Bi-Ventricular Assist Device (BVAD) Centrifugal Heart Pump as an Implantable Total Artificial Heart. In Australia, 40%(50,797) of all deaths each year are related to heart disease and accounted for 12% (A$4Billion) of total recurrent health expenditure. This innovative research aims at developing a single biventricular assist device (BVAD) driven by a magnetically suspended double-sided centrifugal pump impeller. Current techniques require two implantable devices, thus preventi ....Noval design of a Bi-Ventricular Assist Device (BVAD) Centrifugal Heart Pump as an Implantable Total Artificial Heart. In Australia, 40%(50,797) of all deaths each year are related to heart disease and accounted for 12% (A$4Billion) of total recurrent health expenditure. This innovative research aims at developing a single biventricular assist device (BVAD) driven by a magnetically suspended double-sided centrifugal pump impeller. Current techniques require two implantable devices, thus preventing smaller patients from access to BVAD technology. The expected outcomes will be a significantly small and compact device and provide an alternative to open-heart transplantation, thus helping to alleviate the demand on donor hearts, as well as the strain on the Australian Heath Care System caused by cardiovascular disease.Read moreRead less
Development and evaluation of a remote monitoring system and its application to cardiac rehabilitation and occupational health. This project further develops and evaluates a system developed by the Industry Partner which permits real-time remote monitoring of a person's cardiac activity, position and velocity via GPS, and selected aspects of motion and posture using accelerometry. The study has three aims: to enhance the system's capacity for remote monitoring of human motion and physiology; to ....Development and evaluation of a remote monitoring system and its application to cardiac rehabilitation and occupational health. This project further develops and evaluates a system developed by the Industry Partner which permits real-time remote monitoring of a person's cardiac activity, position and velocity via GPS, and selected aspects of motion and posture using accelerometry. The study has three aims: to enhance the system's capacity for remote monitoring of human motion and physiology; to test its ability to support cardiac rehabilitation for those unable to access hospital-based programs; and to evaluate its application to the monitoring of workloads in physically demanding tasks associated with cardiovascular ill-health and musculoskeletal injury.Read moreRead less
Predicting the movement speeds of animals. The project seeks to reveal how marsupials modify their movement patterns and speeds as they navigate risky environments, and show how movement contributes to vulnerability and resilience. Movement is central to animal behaviour and the survival of species, because it underlies feeding, mating and the ability to escape from predators. However, we lack a framework for predicting how fast animals should move through their habitats given their needs to con ....Predicting the movement speeds of animals. The project seeks to reveal how marsupials modify their movement patterns and speeds as they navigate risky environments, and show how movement contributes to vulnerability and resilience. Movement is central to animal behaviour and the survival of species, because it underlies feeding, mating and the ability to escape from predators. However, we lack a framework for predicting how fast animals should move through their habitats given their needs to conserve energy, avoid detection by predators and minimise risks of injury or death. This project aims to develop mathematical models to predict how fast animals should move and then test these predictions using native species of conservation concern. This is expected to extend the field of performance ecology as well as inform management strategies for vulnerable marsupials.Read moreRead less
From genes to organ function: understanding how heterogeneity in tissue modulates cellular behaviour in the heart. New computational and software engineering approaches are developed to model the electrophysiological variability of the heart and the mechanisms inducing arrhythmias. A significant outcome is a set of practical tools vital to cardiac research that provide medical specialists the ability to test hypotheses on low-cost powerful computing hardware.
Can muscles tune foot stiffness to enhance efficiency of human locomotion? This project aims to understand the key role that muscles might play in supporting the arch of the foot and determine if this improves the efficiency of human walking and running. The human foot is known to act like a spring to store and return energy during walking and running. The project hypothesises that this function is enhanced by muscular contributions within the foot that act to tune the stiffness of the foot and ....Can muscles tune foot stiffness to enhance efficiency of human locomotion? This project aims to understand the key role that muscles might play in supporting the arch of the foot and determine if this improves the efficiency of human walking and running. The human foot is known to act like a spring to store and return energy during walking and running. The project hypothesises that this function is enhanced by muscular contributions within the foot that act to tune the stiffness of the foot and maximise efficiency of force production. Exploration of how foot stiffness is controlled during human movement is expected to improve our understanding of the evolution of human walking and running and contribute to improving the design of modern footwear.Read moreRead less
Testing metabolic theories in ecology. There are striking similarities in the way plants and animals take up and use energy (metabolism), despite enormous variation in size and life-style. This project will make the first experimental comparison of the predictions of the two major theories for these broad patterns. The results will significantly progress this controversial and exciting field.
Unsaturation of vapour pressure inside leaves: fundamental, but unknown. This project aims to determine when and to what extent the air inside leaves becomes unsaturated with water vapour. All current interpretation and modelling of leaf gas exchange assumes saturation under all circumstances. Compelling evidence has been obtained that suggests this is not true under moderate air vapour pressure deficits. A novel technique will be employed to assess the water vapour concentration of the air insi ....Unsaturation of vapour pressure inside leaves: fundamental, but unknown. This project aims to determine when and to what extent the air inside leaves becomes unsaturated with water vapour. All current interpretation and modelling of leaf gas exchange assumes saturation under all circumstances. Compelling evidence has been obtained that suggests this is not true under moderate air vapour pressure deficits. A novel technique will be employed to assess the water vapour concentration of the air inside leaves based on stable isotope analysis of carbon dioxide and water vapour exchanged between leaves and air. The project is expected to provide fundamental knowledge about how stomata regulate photosynthesis and water use, with significant implications for modelling vegetation function and for improving the performance of crop plants.Read moreRead less
Left-right patterning of the heart. This project aims to investigate how the heart responds to left-right (LR) signals, which tissue is dominant in this response; determine tissue intrinsic factors at play, and determine whether we can manipulate this. Expected outcomes include fundamental information about how organs are patterned.