Filopodia: Complex models for simple rods
نویسندگان
چکیده
منابع مشابه
Filopodia: Complex models for simple rods.
Filopodia are prominent cell surface projections filled with bundles of linear actin filaments that drive their protrusion. These structures are considered important sensory organelles, for instance in neuronal growth cones or during the fusion of sheets of epithelial tissues. In addition, they can serve a precursor function in adhesion site or stress fibre formation. Actin filament assembly is...
متن کاملSimple Local Models for Complex Dynamical Systems
We present a novel mathematical formalism for the idea of a “local model” of an uncontrolled dynamical system, a model that makes only certain predictions in only certain situations. As a result of its restricted responsibilities, a local model may be far simpler than a complete model of the system. We then show how one might combine several local models to produce a more detailed model. We dem...
متن کاملSimple Models of Complex Systems
The range of phenomena addressed by physicists in trying to understand nature is very wide. In length scales, it varies from the Planck scale ( about 10 meters), to the size of the universe ( ∼ 10 meters). In time scales from 10 seconds to billions of years. The enormity of this range is somewhat mind-boggling. While the problems of understanding ultra-short and very-large length scales are cer...
متن کاملCombining Simple Models to Approximate Complex Dynamics
Stochastic tracking of structured models in monolithic state spaces often requires modeling complex distributions that are difficult to represent with either parametric or sample-based approaches. We show that if redundant representations are available, the individual state estimates may be improved by combining simpler dynamical systems, each of which captures some aspect of the complex behavi...
متن کاملSimple Models of Complex Chaotic Systems
Many phenomena in the real world are inherently complex and involve many dynamical variables interacting nonlinearly through feedback loops and exhibiting chaos, self-organization, and pattern formation. It is useful to ask if there are generic features of such systems, and if so, how simple can such systems be and still display these features. This paper describes several such systems that are...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The International Journal of Biochemistry & Cell Biology
سال: 2009
ISSN: 1357-2725
DOI: 10.1016/j.biocel.2009.02.012