Signal transduction is the fundamental process by which cells convert external cues into tailored intracellular responses. Through a cascade of molecular events—beginning at the cell membrane with the ...

Designated areas (white circles) were irradiated with blue light at specific frequencies (indicated in the top left of each panel) to examine chemotactic aggregation. A research team led by Dr.

Three winners of the Nobel Prize in medicine were announced in Stockholm, Sweden on Oct. 9. Prize winners Arvid Carlsson, ...