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When the oceans were 20 metres higher: revealing past and future climates

Dr Christina Riesselman, geologist, University of Otago, Dunedin

2015 L'Oréal-UNESCO For Women in Science Fellow Christina Riesselman (Credit: L'Oréal New Zealand)

Three million years ago Earth was much as it is today – familiar continents, animals, and carbon dioxide levels. But temperatures were higher and sea levels were also about 20 metres higher. Today, a billion people live on land less than 20 metres above sea level, and carbon dioxide levels are rising.

Working on the Antarctic ice shelf and at sea Dr Christina Riesselman collects sediment cores from hundreds of metres under the sea floor and reads the climate history of millennia past using the microscopic fossilised fish teeth and diatomic algae she finds in the cores.

Christina will use her L’Oréal-UNESCO For Women in Science Fellowship to turn her focus to the end of the last Ice Age around 10,000 years ago. 2014 was the hottest year on record, but was it the hottest year since the end of the last ice age? Christina’s research could answer that question and help us understand and plan for the impact of our planet’s rapidly changing climate.

Continue reading When the oceans were 20 metres higher: revealing past and future climates

The short lives of hard-living, fast burning, high mass stars

2015 L'Oréal-UNESCO For Women in Science Fellow Shari Breen (Credit: L'Oréal Australia) Dr Shari Breen, astronomer, CSIRO, Sydney

We are made of star stuff. The nitrogen in our DNA, the calcium in our teeth and the iron in our blood were all made in high mass stars that burnt briefly and brightly before exploding.

Dr Shari Breen is using ‘The Dish’ at Parkes and a network of international telescopes to understand the life cycle and evolution of these stars. For her the 1,000 tonne Parkes radio telescope is an old friend that creaks and grumbles as she guides it across the sky, hunting for high mass stars.

She will use her L’Oréal-UNESCO For Women in Science Fellowship to develop her use of masers (laser-like beams of intense radio waves) to investigate these stars.

Continue reading The short lives of hard-living, fast burning, high mass stars

How we imagine the future

Dr Muireann Irish, cognitive neuroscientist, Neuroscience Research Australia/UNSW, Sydney

2015 L'Oréal-UNESCO For Women in Science Fellow Muireann Irish (Credit: L'Oréal Australia) Dr Muireann Irish has discovered which parts of our brain are essential to imagine the future, ranging from simple things like “I must remember my keys and my wallet when I go out,” to imagining complex events such as “my next holiday”. And she has shown that people with dementia don’t just lose the ability to remember the past, they also lose the ability to envisage the future.

She will use her L’Oréal-UNESCO For Women in Science Fellowship to better understand how dementia affects this cognitive function. She expects her work will inform the development of activities for patients that will improve their quality of life and reduce the burden faced by caregivers.

Cognitive decline in the form of dementia will be one of the greatest challenges for our health system in the next fifty years and Muireann is leading the search for solutions.

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A hot future for sharks

Dr Jodie Rummer, marine biologist, James Cook University, Townsville

2015 L'Oréal-UNESCO For Women in Science Fellow Jodie Rummer (Credit: L'Oréal Australia) Dr Jodie Rummer swims with sharks for her research. She is fascinated by fish and their ability to deliver oxygen to their muscles 20 to 50 times more efficiently than we can. Her global research into salmon, mackerel, hagfish, and now sharks explains why fish dominate the oceans, and has given her the opportunity to swim with sharks in the world’s largest shark sanctuary, in French Polynesia.

Her L’Oréal-UNESCO For Women in Science Fellowship will help her predict how sharks and other fish will cope with rapidly changing oceans. Some will be winners, some will be losers as the climate changes. That’s a problem not just for the oceans, but also for the communities that depend on fish for protein.

“Fish have been on the planet for hundreds of millions of years. It’s up to us to ensure they’re here for the next 100 million years,” she says.

Continue reading A hot future for sharks

Preserving the foundations of Japanese culture

An Australian archaeologist is advising on the preservation of sites of the unique prehistoric Jomon culture of Japan.

Remnants of the Jomon’s unique culture are found in diverse archaeological sites in northern Honshu and Hokkaido, credit: Ian Lilley.
Remnants of the Jomon’s unique culture are found in diverse archaeological sites in northern Honshu and Hokkaido, credit: Ian Lilley.

Hunter-gatherers are typically thought to be wanderers who moved to harvest the animals and plants on which they fed. Not so the Jomon, one of the important founding peoples of Japan.

By careful management of the resources they found in many varied environments in the north of Japan—fruit, nuts, fish, seafood, birds—the Jomon lived in permanent settlements for about ten thousand years until three thousand years ago. They were not farmers, but nonetheless lived in open, undefended villages. They developed sophisticated pottery, basketry and lacquered wooden crafts, and constructed storage pits and stone monuments.

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Making plastics, mining, and engineering

2014 ATSE Clunies Ross Medals

John Nutt helped design and analyse the sails of the iconic Sydney Opera House early in a career that saw him pioneer the use of computers in engineering, and contribute to the first fire code for buildings.

Kevin Galvin’s invention of the Reflux Classifier has generated hundreds of millions of dollars in benefits to the Australian economy, and revolutionised mineral processing around the world. It maximises mineral recovery by improving the recovery of fine, but still valuable, particles. Continue reading Making plastics, mining, and engineering

Predicting change, brains, trains and mental health

State Awards

“Trait-based ecology” enables Macquarie University’s Mark Westoby to explain patterns of species occurrence and abundance and to understand the impacts of climate change and changing patterns of land use. He received the $55,000 NSW Scientist of the Year.

Nanocapsules for drugs delivery: Frank Caruso is making miniature capsules that could better deliver drugs for cancer, AIDS and cardiovascular diseases. He won one of the 2014 Victoria Prizes for Science & Innovation worth $50,000.

Continue reading Predicting change, brains, trains and mental health

Australian Academy of Science Early-career Awards

Julie Arblaster’s climate research is helping to explain the climate of the Australian region, particularly the ozone hole, El Niño, the monsoon, and Australian rainfall variability.

David Warton is driving data analysis in ecology, making it a more predictive science. His tools are influencing statistics across science and industry.

Christian Turney has pioneered new ways of combining climate models with records of past climate change spanning from hundreds to thousands of years.

Maria Seton has redefined the way we reconstruct the movement of continental plates and contributed to studies on the effect ocean basin changes have had on global long-term sea level and ocean chemistry. Continue reading Australian Academy of Science Early-career Awards

Australian Academy of Science medals

Harry Messel has been a powerful force in science education—from the Physics Foundation to textbooks and his establishment of International Science Schools. He was awarded the Academy Medal.

Simon McKeon is a prominent business leader and philanthropist who has made extensive contributions to Australian science and innovation including chairing the CSIRO Board and the agenda-setting McKeon report into medical research in Australia. He was awarded the Academy Medal.

The life and death of cells: Jerry Adams has advanced understanding of cancer development, particularly of genes activated by chromosome translocation in lymphomas. By clarifying how the Bcl-2 protein family controls the life and death of cells, he and his colleagues at the Walter and Eliza Hall Institute of Medical Research have galvanised the development of a promising new class of anti-cancer drugs. Jerry was awarded the 2014 Macfarlane Burnet Medal. Continue reading Australian Academy of Science medals

Changing lives: Australia–Japan science links

Japanese science changing Australia

The impact of Japanese technological prowess on Australian society is obvious for all to see. How we listened to music was transformed by audio recording technologies: from the Walkman to the CD.

Nobel Laureate Shinya Yamanaka changed stem cell science. Credit: Gladstone Institutes/Chris Goodfellow
Nobel Laureate Shinya Yamanaka changed stem cell science. Credit: Gladstone Institutes/Chris Goodfellow

Home entertainment was changed by video tapes, DVDs, and game consoles. We rely on Japanese innovation in transport—reliable car engineering, the lean manufacturing techniques that made them affordable and, more recently, hybrid cars.

Fundamental science discoveries are now bringing a new era of transformation. Japanese researchers were honoured last year with the Nobel Prize for their invention of the blue LED. They succeeded where for 30 years everyone else had failed. Incandescent light bulbs lit the 20th century; the 21st century will be lit by LED lamps— lasting a lifetime and using a fraction of the energy.

In 2006 Shinya Yamanaka discovered how intact mature cells in mice could be reprogrammed to become immature stem cells. By introducing only a few genes, he could reprogram mature cells to become pluripotent stem cells, that is, immature cells that are able to develop into all types of cells in the body. His work is transforming stem cell medicine and many Australian researchers are now using his induced pluripotent stem cells to develop stem cell medicine.

Australian science changing Japan

It’s not a one way trade. Japanese lives are being improved by Australian inventions such as the bionic ear, gum that repairs tooth decay, sleep disorder treatments, lithium to treat bipolar disorder, aircraft black boxes, and anti-flu drugs, which are all in daily use in Japan.

And when you connect to a fast and reliable wi-fi network you can thank Australian astronomers who were searching for black holes and created tools for cleaning up radio waves.

Collaborating for the future

Today there are hundreds of thriving Australia–Japan research collaborations, many of which will have a profound impact on our lives in the years ahead.

Over the past five years, Japan has consistently placed within the 10 countries that have the highest number of collaborations with Australian researchers on Australian Research Council–funded projects. The ARC reports that the most popular disciplines for collaboration with Japan are: material engineering; biochemistry and cell biology; atomic, molecular, nuclear, particle and plasma physics; astronomical and space sciences and plant biology.

Other collaborations

Seeing every cell in a whole adult brain
Scientists from RIKEN, the University of Tokyo, JAST, and the Queensland University of Technology have developed CUBIC—a technique for rapidly imaging the brain. They believe it will be scalable to whole bodies.

Biomedical applications for ‘magic crystals’
CSIRO and Osaka Prefecture University are developing biomedical applications for the massively absorbent metal–organic framework crystals developed by CSIRO.

How our phones track us
Billions of us now have phones that tell us and others where we are and what’s around us. A team from RMIT, Intel, Fudan University and Keio University is exploring the cross-cultural and intergenerational study of this phenomenon, and the implications for privacy, in three key sites: Tokyo, Shanghai and Melbourne.

For more information: Science in Public, www.scienceinpublic.com.au/stories/japan