منابع مشابه
Cell Migration: PKA and RhoA Set the Pace
A new study shows that protein kinase A (PKA) activity establishes a signaling loop that governs protrusion-retraction cycles in migrating cells. PKA activity near the leading edge of protrusions phosphorylates RhoA and inhibits its activity via increased association with RhoGDI.
متن کاملA Climbing Robot based on Under Pressure Adhesion for the Inspection of Concrete Walls
The inspection of large concrete walls with autonomous systems is still an unsolved problem. One of the main difficulties is the development of a very flexible platform, which is able to move at horizontal and vertical surfaces. The platform also has to overcome small obstacles and cracks. In this paper a prototype of a climbing robot
متن کاملProposed Dynamic Soil Pressure Diagram On Rigid Walls.
Using finite element nonlinear analysis, the dynamic soil pressure on perimeter retainingwalls of structures is investigated. Nonlinear Drucker Prager failure criterion is used to model the soilbehavior in the near field. The far field soil and the middle structure are assumed to behave as linearelastic materials. The soil-wall interface behavior is modeled incorporating nonlinear interfaceelem...
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ژورنال
عنوان ژورنال: Trends in Plant Science
سال: 2010
ISSN: 1360-1385
DOI: 10.1016/j.tplants.2010.04.005