Almost everyone has had their blood pressure measured with an inflatable cuff around the arm. But as useful as this is, it can differ from the reading at the heart itself.
Using a mathematical model to transform how we measure blood pressure. Credit: Mark Butlin
Twenty years ago Sydney scientists found a way to get that extra information. They created a model that gives the pressure at the main artery of the heart, using the wrist’s pressure pulse (the shape of the ‘waves’ that both travel along arteries when the heart pumps blood, and travel back to the heart as it fills with blood).
The model wasn’t applicable to children, since their limbs are still growing – so now they’re adapting it to fit.
Professor Thomas Maschmeyer is working to integrate new battery and solar cell technologies into the walls and roofs of new houses, and to transform the somewhat ‘black art’ of catalysis—the process that cracks crude oil into useful fuels, oils and chemicals at every refinery. He has already helped to create over 200 new jobs with four spin-out companies.
“I’m ecstatic about the impact our programs have on kids, and knowing that we’ve changed their lives for the better. But we need to ask ‘what about our retirees?’” says Professor Ron Rapee, ARC Laureate Fellow, and former Director of the Centre for Emotional Health.
Viviana is developing programs that might help lower susceptibility to dementia. Credit: Myles Pritchard, Macquarie University
Retirees are less likely to suffer from mental health problems but they still develop anxiety and depression – and there’s increasing evidence these conditions are risk factors for dementia.
To make things worse, they’re often left untreated as there’s a perception that it’s normal for older people to suffer depression as they lose their friends, health and independence.
Matthew Lee (left) and Mike (right) injecting nutrients into a coal seam 80 metres below ground. Credit: Sabrina Beckmann
Adding a simple textile dye can increase the methane yield of coal seam gas wells by a factor of 10, researchers from the University of New South Wales (UNSW) have found.
The discovery could breathe new life into old, exhausted wells, reducing the need for new ones.
It could also improve the economics of renewable biogas energy production.
You’re in hospital: should you stay? Should you leave? What’s your risk of dying?
The patient’s ‘forecast’ is continually updated with the results of each of their medical tests. Credit: Chris Stacey, Macquarie University
By mining electronic health records, researchers at Macquarie University believe they can help improve decision making by health professionals.
Dr Blanca Gallego Luxan is investigating using hospital information and state health and death registries to fill gaps in patient care – whether due to discontinuity of care, lack of information on a condition, or simply the limits of what humans can predict.
Indonesian and Australian researchers are working together to combat two big killers: pneumonia, and tuberculosis.
Around six million young Indonesians catch pneumonia each year, according to a 2008 study, and it’s the number one killer of children under five. Researchers now think there might be a link to how much time kids are spending out in the sunshine—more specifically, their level of vitamin D.
Non-invasive brain stimulation using an applied magnetic field can strengthen brain connections that weaken as we age.
Perth researchers hope to use this technique to improve the quality of life and reduce the risk of falls and injuries in older people.
Past the age of about 60, there’s a weakening of the structural connections between the three different areas of the brain that control our decision-making processes, our ‘planning’ centres, and our fine-motor control.
It’s the connections between those areas that ultimately allow us to successfully interact with our environment, for example adjusting our foot placement when we step on uneven paving.
We’ve all cursed an ineffective digital network, whether it’s delays streaming the latest Game of Thrones or a dangerous mobile phone overload during bushfire season. But no-one wants to pay extra for an over-engineered network.
The secret to designing and testing a digital network to find the happy medium is a mathematical tool called a traffic matrix: a model of all the digital traffic within the network.
‘Perfect entanglement’ of two light beams has opened a major step towards highly secure quantum communication systems.
The University of Queensland’s Professor Tim Ralph and his colleagues from Canada and Russia have developed a technique to restore entangled light beams that have been distributed between distant points.
“I’m fascinated by why people love objects so much,” says Dr Melissa Norberg, Director of the Behavioural Science Laboratory at Macquarie University.
Melissa wants to know what makes objects so appealing. Credit: Chris Stacey, Macquarie University
“What is it about the items (or the person) that makes objects so appealing?”
While we’re all guilty of holding on to a few sentimental things, Melissa’s interest is in studying those who meet the criteria for hoarding disorder.
With Associate Professor Jessica Grisham at the University of New South Wales, Melissa has been investigating how mood affects peoples’ ability to throw things out.
