A UC Berkeley-led research team found that golden-winged warblers in Tennessee fled the path of tornado-generating storms one to two days ahead, well before any local signs of troubling weather. Signs point to the use of infrasound as Mother Nature’s early warning system.
A new study led by engineers at UC Berkeley and CITRIS describes the first direct observation of a long-hypothesized but elusive phenomenon called “negative capacitance.” The work describes a unique reaction of electrical charge to applied voltage in a ferroelectric material that could open the door to a radical reduction in the power consumed by transistors and the devices containing them.
In semiconductors like silicon, electrons attached to atoms in the crystal lattice can be mobilized into the conduction band by light or voltage. Berkeley scientists have taken snapshots of this very brief band-gap jump and timed it at 450 attoseconds.
An analysis of 115 studies comparing organic and conventional farming finds that the crop yields of organic agriculture are higher than previously thought. Researchers also found that taking into account methods that optimize the productivity of organic agriculture could minimize the yield gap between organic and conventional farming.
A new genetic therapy developed by UC Berkeley scientists has not only helped blind mice regain light sensitivity sufficient to distinguish flashing from non-flashing lights, but also restored light response to the retinas of dogs, setting the stage for future clinical trials of the therapy in humans. The therapy involves inserting photoswitches into retinal cells that are normally ‘blind.’
Children living in revitalized public housing are significantly less likely to take repeated trips to the emergency room, according to a new study by researchers at UC Berkeley and UC San Francisco. The study suggests that improvements in public housing could potentially yield a big return on investment through the reduction in emergency room visits.