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.
Continue reading Traffic matrices for more reliable digital networks
‘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.
Continue reading Shedding ‘spooky’ light on unbreakable security
“I’m fascinated by why people love objects so much,” says Dr Melissa Norberg, Director of the Behavioural Science Laboratory at 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.
Continue reading Hoarding disorder: why is it hard to part with stuff?
‘Artificial leaves’ are bringing us one step closer to cheap, renewable and commercially-viable fuels that could power your car, house or whole community, thanks to researchers at Monash University.
Professor Doug MacFarlane and his team at the ARC Centre of Excellence for Electromaterials Science are using sun, water and CO2 to produce hydrogen and methanol fuels.
Their artificial photosynthesis takes its inspiration from the way plants convert sunlight into energy, and then recreates it in an industrial setting.
Continue reading Renewable fuels turn over a new artificial leaf
The chances of surviving melanoma are getting better every year. But some cancers still become ‘resistant’ to treatment, and others don’t respond at all.
A collection of over 10,000 blood and 4,900 tissue samples from the biobank at the Melanoma Institute Australia is being used to hunt for clues to predict which patients won’t be responsive to treatment from day one. The researchers, from Macquarie University, are also looking for the basis of developed resistance by the cancer.
Continue reading Expanding treatments for the ‘Australian’ cancer
Statisticians have revealed the surprising source of dust that plagues townships beside a Hunter Valley rail line delivering coal to Newcastle’s busy port.
Airborne dust increases as trains pass. But it wasn’t clear exactly how—for example, whether the dust was escaping uncovered coal wagons or coming from the diesel engines pulling the wagons. The answer was surprising.
Mathematicians from the ARC Centre of Excellence for Mathematical and Statistical Frontiers correlated air-pollution data against information on passing trains and weather conditions.
Local fishermen in Indonesia are catching less fish. Whatever the reason, it is a significant problem for those who live on small islands in particular, as fish make up about 90 per cent of the protein they eat.
A team of Indonesian and Australian social scientists is looking at how communities adapt to these changes.
Initially, in a pilot project study financed by the Australia Indonesia Centre, the researchers are examining whether there is a link between fishing productivity and feelings of food insecurity in the small islands off Kai Kecil, and if so, whether a weakening of local management of fish populations and a rise in intercommunity conflicts over fish resources play a role.
Recent advances pinpointing genes involved in the inherited form of Motor Neurone Disease (MND) are now being used to hunt for the culprits of ‘sporadic’ cases.
Sporadic MND is the most common form (around 90 per cent), and unlike the ‘familial,’ disease, it appears in patients without a family history.
The design of a 3D silicon chip architecture clears another hurdle in the international race to build quantum computers.
Researchers at the University of Melbourne and the University of New South Wales (UNSW) have designed a chip based on single atom quantum bits, creating a blueprint for building a large-scale silicon quantum computer.
Continue reading Build it and they will come – chip design creates computer blueprint
Life on land depends on plants. And every plant balances opening its pores to let in carbon dioxide for photosynthesis; and closing its pores to retain water.
Graham Farquhar’s work has transformed our understanding of photosynthesis.
His models of plant biophysics have been used to understand cells, whole plants, whole forests, and to create new water-efficient wheat varieties.
Continue reading Feeding the world, and asking where the wind went
