Up to a billion tons of waste potentially burned in the open every year

Credit: Aline Tong/Shutterstock As much as one billion tons of waste could be burned in open and uncontrolled fires around the world each year, according to one estimate – close to half of all the municipal solid waste generated on Earth. But even if the true total is a fraction of that amount, the impact […]

A beginner’s guide to DNA origami — ScienceDaily

In a technique known as DNA origami, researchers fold long strands of DNA over and over again to construct a variety of tiny 3D structures, including miniature biosensors and drug-delivery containers. Pioneered at the California Institute of Technology in 2006, DNA origami has attracted hundreds of new researchers over the past decade, eager to build […]

Novel RNA factors may help cancer cells thrive

Like Peter Pan, some cells never grow up. In cancer, undifferentiated stem cells may help tumors such as glioblastoma become more aggressive than other forms of the disease. Certain groups of genes are supposed to help cells along the path to maturity, leaving their youthful “stemness” behind. This requires sweeping changes in the microRNAome — […]

Rare quadruple-helix DNA found in living human cells with glowing probes

Quadruple-helix DNA. Credit: Imperial College London New probes allow scientists to see four-stranded DNA interacting with molecules inside living human cells, unraveling its role in cellular processes. DNA usually forms the classic double helix shape of two strands wound around each other. While DNA can form some more exotic shapes in test tubes, few are […]

Peter Raven addresses earth’s dwindling resources, the value of science-informed outreach

The BioScience Talks podcast features discussions of topical issues related to the biological sciences. In a career-spanning installment of the journal BioScience‘s In Their Own Words oral history series, Missouri Botanical Garden President Emeritus Peter Raven illuminates numerous topics, sharing insights related to the sustainability of human civilization, the COVID-19 pandemic, and the importance of […]

Omanis revive memory of village swallowed by desert

Located at the bottom of a valley nearly 400 kilometres (250 miles) southwest of the capital Muscat, Wadi al-Murr is cut off from the main roads Encroaching sands have left little evidence that the Omani village of Wadi al-Murr ever existed, but former inhabitants and curious visitors are coming to rediscover the hamlet engulfed by […]

Immune cells discovered in the lungs improve virus defense

A research team at the University of Basel has discovered immune cells resident in the lungs that persist long after a bout of flu. Experiments with mice have shown that these helper cells improve the immune response to reinfection by a different strain of the flu virus. The discovery could yield approaches to developing longer-lasting […]

Unusual snow kills 4, brings much of Spain to a standstill

Neighbours have drinks in the middle of the street during a heavy snowfall in Bustarviejo, outskirts of Madrid, Spain, Saturday, Jan. 9, 2021. A persistent blizzard has blanketed large parts of Spain with 50-year record levels of snow, halting traffic and leaving thousands trapped in cars or in train stations and airports that suspended all […]