28 articles from SUNDAY 18.4.2021

‘Like hunting for unicorns’: Australians on the search for adequate, affordable mental healthcare

Countless inquiries have found the same problems afflicting the mental health system, but cost and access barriers still leave those seeking and providing care in despair Many Australians experience the country’s mental health system as inadequate, dangerous and financially punishing, saying they often feel unsafe in hospitals, are dismissed by health professionals and are hit with prohibitive...

Cutting the cost of Covid tests for travellers | Letters

Mike Whittaker has a suggestion to reduce test costs for those wishing to travel abroad, while Catherine Dunn says that if the government invested in public health infrastructure, we would have a more effective testing system Your article (Airlines warn the cost of Covid tests will stop people going abroad, 9 April) considers the cost of Covid tests for a family, calculated as the cost of a single...

Hubble watches cosmic light bend

This extraordinary image from the NASA/ESA Hubble Space Telescope of the galaxy cluster Abell 2813 (also known as ACO 2813) has an almost delicate beauty, which also illustrates the remarkable physics at work within it. The image spectacularly demonstrates the concept of gravitational lensing.

Parker Solar Probe sees Venus orbital dust ring in first complete view

NASA's Parker Solar Probe mission has given scientists the first complete look at Venus' orbital dust ring, a collection of microscopic dust particles that circulates around the Sun along Venus' orbit. Though earlier missions have made some observations of Venus' orbital dust ring, Parker Solar Probe's images are the first to show the planet's dust ring for nearly its entire 360-degree span around...

US West prepares for possible 1st water shortage declaration

The man-made lakes that store water supplying millions of people in the U.S. West and Mexico are projected to shrink to historic lows in the coming months, dropping to levels that could trigger the federal government's first-ever official shortage declaration and prompt cuts in Arizona and Nevada.

Vodka, toothpaste, yoga mats … the new technology making items out of thin air

An exhibition at London’s Science Museum shows how far carbon capture research has comeTackling climate change may bring unexpected benefits, London’s Science Museum will reveal next month. A special exhibition on carbon capture, the fledgling technology of extracting greenhouse gases from the atmosphere and emissions from factories, will display bottles of vodka, tubes of toothpaste, pens and...

4,000 to attend FA Cup semi-final as live sport cautiously reopens

Largest crowd at a major British stadium for more than a year will aid research into events reopening this summerCoronavirus – latest updatesSee all our coronavirus coverageA sporting record will be broken on Sunday when 4,000 football fans gather at Wembley to watch the FA Cup semi-final between Leicester City and Southampton. It will be the largest crowd to have watched a football match in a...

Biomarker for COVID-19 risk

Varying severity of COVID-19 symptoms in patients is reflected by levels of a chemical biomarker in their body which scientists say could be used to better manage treatments and other interventions, including vaccinations. In a new paper in International Journal of Infectious Diseases, medical experts in Italy and Australia examined levels of a chemical called serum amyloid A (SAA), a protein...

Run, process, run!

Solid-matrix catalysts called heterogeneous catalysts are among the most widespread industrial applications in reducing toxic gases, unburned fuel, and particulate matter in the exhaust stream from the combustion chamber. They are also used in energy, chemical, and pharmaceutical sectors, i.e., production of biodiesel, polymers, biomass/waste conversion into valuable products, and many others...

World's fastest photo-exfoliation

Researchers discovered, while exploring the photomechanical properties of diarylethene, that under irradiation with UV light the crystal of the compound peels off into micrometer-sized crystals at a world's fastest speed of 260 microseconds. As the material returns to its former molecular structure when exposed to visible light, the exfoliation method positions itself as a candidate for...