Tech

Researchers have discovered a new set of signals that cells send and receive to prompt one type of fat cell to convert fat into heat. The signaling pathway, discovered in mice, has potential implications for activating this same type of thermogenic fat in humans.

Thermogenic fat cells, also called beige fat or beige adipocytes, have gained attention in recent years for their potential to curb obesity and other metabolic disorders, due to their ability to burn energy stored as fat. But scientists have yet to translate this potential into effective therapies.

Silicone molecules from breast implants can initiate processes in human cells that lead to cell death. Researchers from Radboud University have demonstrated this in a new study that will be published on 12 June in Scientific Reports. "However, there are still many questions about what this could mean for the health effects of silicone breast implants. More research is therefore urgently needed," says Ger Pruijn, professor of Biomolecular Chemistry at Radboud University.

Do plants attacked by herbivores produce substances that are most effective against attackers in a targeted manner, or are herbivore-induced changes in a plant metabolism random, which could thwart the performance of herbivores? Scientists at the Max Planck Institute for Chemical Ecology in Jena, Germany, and at the CNRS Institute of Plant Molecular Biology/University of Strasbourg, France, tested these long-standing hypotheses for the first time using the coyote tobacco Nicotiana attenuata and its close relatives.

In the course of the COVID-19 pandemic, scientists are facing great challenges because they have to reorient, interrupt or even cancel research and teaching. A team of international scientists with participation from the University of Göttingen published an international appeal which highlights the precarious situation of many scientists and calls for a collective effort by the entire scientific community, especially those in leadership positions, to protect decades of effort to build an inclusive scientific community. Their letter appeared in Nature Ecology and Evolution.

Nearly 13 kilometres per year: that is the rate at which the wintering area of Bewick's swans has shifted east over the past 50 years. It's a discovery with consequences for the conservation of this migratory species, writes a team of researchers led by the Netherlands Institute of Ecology (NIOO-KNAW) in Global Change Biology.

A mysterious cloud containing radioactive ruthenium-106, which moved across Europe in autumn 2017, is still bothering Europe's radiation protection entities. Although the activity concentrations were innocuous, they reached up to 100 times the levels of what had been detected over Europe in the aftermath of the Fukushima accident. Since no government has assumed responsibility so far, a military background could not be ruled out.

A low-pressure system that developed in the Philippine Sea and tracked over the central Philippines has moved into the South China Sea and become a depression. NASA's Terra satellite provided an image of the newly formed storm.