Scientists discover how nerve cells move from target to target as they wire up the developing embryo
...t. In this condition, the axon is no longer in the throes of attraction and is ready to move on. In what a commentator in the Science issue called a tour de force, Tessier-Lavigne and Stein reduced the complex system of signals and receptors to their elemental parts and showed how specific modules in each r...Scientists Find New Trigger For Nerve Cell Death
...dering how apoptotic cells differ from those inthe throes of necrosis -- sudden death at the focus of an injury. Whereasnecrotic cells swell up and burst, apoptotic cells shrink into oblivion. "Ashrinking cell must be losing ions and water," Yu says. Potassium seemed like the obvious ion to escape ...Coming Extinction Of One Of UK's Most Minuscule Plants Yields Information On Climate Change
...to become extinct in this country but in its death throes it is providing researchers from the University of Warwick with important information about the pace of climate change in the UK. The Iceland Purslane plant is found in only two localities in he UK, the Storr on the Isle of Skye, and on the Ardmeana...