Electron movements pinned down to the split second

Colloids at interfaces: Pinned down.

In 1903 Walter Ramsden found that an air bubble placed in a liquid suspension of microscopic particles “can be seen to pick up the particles ... and to retain them obstinately ...”1 Ramsden had discovered the strong affinity of colloidal particles to fluid interfaces, an affinity that a century later can be harnessed to make microstructured materials such as Pickering emulsions, colloidosomes a...

Hematopoiesis: Origin pinned down at last?

The sequence of events leading to definitive adult hematopoiesis in the mouse has long been debated. The traditional notion that yolk-sac-derived stem cells seed the adult compartment has now been challenged by evidence that intra-embryonic stem cells play a crucial role.

Dorsoventral Patterning: A Serpin Pinned down at Last

Dorsoventral patterning in Drosophila has long been known to involve a cascade of proteases, held in the inactive zymogen state prior to signaling. At long last, the prediction that a protease inhibitor is involved in this pathway has been shown to be true, with the identification of a serpin that plays a key part in Drosophila embryonic patterning.

The impact of a split-second error.

Electron-pinned defect-dipoles for high-performance colossal permittivity materials.

The immense potential of colossal permittivity (CP) materials for use in modern microelectronics as well as for high-energy-density storage applications has propelled much recent research and development. Despite the discovery of several new classes of CP materials, the development of such materials with the required high performance is still a highly challenging task. Here, we propose a new el...