Bismuth crystals can act as superconductors — but only at temperatures approaching absolute zero.Researchers have long been searching for new superconducting materials, which have the ability to maintain an electric current with no power source. A team led by Srinivasan Ramakrishnan at the Tata
A live, genetically modified flu virus can infect animals and trigger a strong immune response, but cannot multiply in its host’s cells. Such modified viruses could one day be used to improve on current vaccines (pictured).Vaccines made of live viruses elicit stronger
Scientists should challenge online falsehoods and inaccuracies — and harness the collective power of the Internet to fight back, argues Phil Williamson.
Trials in animals can aid both veterinary and human medicine, but complicated rules can stifle them.
Changing the social status of macaques also changes their immune systems.Low social status has been linked to multiple health problems in humans and other primates, some of which may not be linked to the accessibility of food and other resources.Jenny Tung of Duke
Molecules containing both carbon and silicon have become a standard part of synthetic chemistry, but life uses silicon only in inorganic compounds such as the shells of diatoms.Now, Frances Arnold and her collaborators at the California Institute of Technology in Pasadena have engineered bacteria
Mice with simulated jet lag have an increased risk of developing liver cancer.Sleeping out of step with the day–night cycle has been linked to various health disorders in humans. David Moore, Loning Fu and their colleagues at Baylor College of Medicine in Houston, Texas,
A change in cultural and social factors — such as overcoming a distaste for doggy bags — will be required to shift people’s behaviour.
In an era of online discussion, debate must remain nuanced and courteous.
It is crucial to fight discrimination in all its forms, but it is unhelpful to exclude conservative voices from debate.