123 articles from FRIDAY 7.1.2022

Tangled messages: Tracing neural circuits to chemotherapy's 'constellation of side effects'

Cancer patients undergoing chemotherapy can experience severe side effects that persist long after treatments end. A new study has found a novel pathway for understanding why these debilitating conditions happen -- and why scientists should focus on 'all of the possible neural processes that deliver sensory or motor problems to a patient's brain' and not just those that occur away from the center...

Fully 3D-printed, flexible OLED display

Researchers used a customized printer to fully 3D print a flexible organic light-emitting diode (OLED) display. The discovery could result in low-cost OLED displays in the future that could be widely produced using 3D printers by anyone at home, instead of by technicians in expensive microfabrication facilities.

Webb's primary mirror deployment has begun

Engineers have begun the final stage of Webb's major structural deployments: the unfolding of its two primary mirror wings. These side panels, which were folded back for launch, each hold three of the observatory's 18 hexagonal, gold-coated mirror segments.

Winter storm snarls travel, gives some schools the day off

A winter storm that had already blanketed parts of the South in snow moved into the Northeast on Friday, snarling air travel, crushing morning commutes and giving hundreds of school districts struggling to keep kids in the classroom during a wave of new coronavirus cases an excuse to shut down for a one-day respite.

Study sets framework for precision surveillance of colorectal cancer

A team of researchers has revealed some of the mechanisms by which polyps develop into colorectal cancer, setting the framework for improved surveillance for the cancer utilizing precision medicine. Their study describes findings from a single-cell transcriptomic and imaging atlas of the two most common colorectal polyps found in humans: conventional adenomas and serrated polyps.

Novel brainstem circuit gives rise to the rhythms of vocalization

The vocal sounds of humans -- laughing, crying, and the babbling of babies -- have the same rhythmic quality as the sounds made by many mammals, songbirds, and even some species of fish. Researchers have discovered that a small cluster of neurons in the brain stem not only regulates tempo but also coordinates vocalization with breathing.

Fourth Covid jab not yet needed, JCVI says, as booster protecting older people

Latest figures show protection against hospitalisation for over-65s at 90% three months after third jabCoronavirus – latest updatesSee all our coronavirus coverageA fourth Covid vaccine shot is not yet needed, the Joint Committee on Vaccination and Immunisation has said, as booster shots are still providing strong protection against severe disease from Omicron in older people.Latest figures show...

‘A Rosetta Stone’: Australian fossil site is a vivid window into 15m-year-old rainforest

Likely to contain dozens of undiscovered species, the site is so well-preserved that the contents of fish stomachs and breathing apparatus of spiders can be seenThe Australian paleontologist Matthew McCurry was digging for Jurassic fossils when a farmer dropped by with news of something he’d seen in his paddock – a fossilised leaf in a piece of hard brown rock.Fossil leaves are not usually...

Remarkable fossil discovery offers a peek into Australia’s ancient past – video

Palaeontologists from the Australian Museum have made a remarkable discovery outside of a small town in New South Wales, Australia. Encased in the hard brown rocks of McGrath's Flat are the inhabitants of a rainforest that existed about 15 million years ago. Thousands of fossils have been revealed – from flowering plants to fruits and seeds, insects, spiders, pollen and fish Continue...

Life in the 'dead' heart of Australia

A team of Australian and international scientists led by Australian Museum (AM) and University of New South Wales (UNSW) paleontologist Dr. Matthew McCurry and Dr. Michael Frese of the University of Canberra has discovered and investigated an important new fossil site in New South Wales, Australia, containing superb examples of fossilized animals and plants from the Miocene epoch. The team's...

Nonequilibrium mechanism of bacterial flagellar motor switching revealed

In work published in Physical Review Letters, a research group led by Prof. Yuan Junhua and Prof. Zhang Rongjing from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences proposed a novel nonequilibrium mechanism in the allosteric regulation of motor switching, based on a precise measurement of the switching dynamics of the bacterial flagellar motor. This...

Light-controlled 'drug-free' macromolecules for precise tumor therapy

Drug-free macromolecular therapies can induce cell apoptosis by clustering non-internalizing cell-surface receptors. These show enormous promise in tumor treatment, particularly in terms of non-specific toxicities when compared with low-molecular-weight drugs. However, most reported drug-free macromolecular therapies involve a 'two-step' administration manner and there is a paucity of in vivo...

Racial demographics influence school choices for white, Asian and Latino parents, finds study of NYC school preferences

White, Asian and Latino parents in New York City all express strong racial/ethnic preferences in where to send their kids to high school, according to a study just published in Sociology of Education. The study suggests that these preferences contribute substantially to school segregation in New York, which has one of the most racially segregated school systems in the country.

Our galaxy's most recent major collision

One of the characteristic features of modern cosmology is its description of how galaxies evolve: via a hierarchical process of colliding and merging with other systems. Nowhere in the universe do we have a clearer view of this buildup than in our own Milky Way. Currently one of our nearby neighbors, the Sagittarius dwarf galaxy, is being tidally disrupted (a dwarf galaxy has less than about 1% of...