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unknown title
, 2002
"... Coupled map gas: structure formation and dynamics of interacting motile elements with internal dynamics ..."
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Coupled map gas: structure formation and dynamics of interacting motile elements with internal dynamics
unknown title
, 2002
"... Coupled map gas: structure formation and dynamics of interacting motile elements with internal dynamics ..."
Abstract
 Add to MetaCart
Coupled map gas: structure formation and dynamics of interacting motile elements with internal dynamics
Organizing the cytoplasm for motility
, 1982
"... The first detailed observations on the motile behavior of animal cells were made several decades ago. The questions raised by those experimentshow cells move and change shape and what guides themremain the basic issues in the field today. The goals of this paper are to identify what we now know ..."
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Cited by 1 (1 self)
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know and do not know about these issues and to indicate new approaches that seem particularly promising. No attempt has been made to be encyclopedic. Reviews of the literature on cytoskeletal elements and motility are available, and in any case this format precludes a lengthy treatment. Rather, I have
Modelling cell motility and chemotaxis with evolving surface finite elements
 Journal of the Royal Society Interface
"... Here we define our notation and some basic facts and identities from differential geometry. For further details and proofs of the results we state we refer to the book by Do Carmo [1]. Throughout Γ denotes a closed smooth oriented d − 1 dimensional hypersurface in Rd, d = 2, 3, with outward pointing ..."
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Cited by 12 (3 self)
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Here we define our notation and some basic facts and identities from differential geometry. For further details and proofs of the results we state we refer to the book by Do Carmo [1]. Throughout Γ denotes a closed smooth oriented d − 1 dimensional hypersurface in Rd, d = 2, 3, with outward pointing unit normal ν. For x ∈ Γ we will make the slight abuse of notation and denote by x both the point x in Γ and the identity map IΓ: Γ → Γ: IΓ(x) = x. Given a function η defined in a neighbourhood of Γ, the tangential or surface gradient of η denoted by ∇Γ is defined as (1.1) ∇Γη: = ∇η −∇η · νν, where ∇ denotes the Cartesian gradient in Rd. The LaplaceBeltrami operator ∆Γ is defined as the tangential divergence of the tangential gradient, i.e., (1.2) ∆Γη: = ∇Γ · (∇Γη). The mean curvature H of Γ with respect to the normal ν is defined as (1.3) H: = ∇Γ · ν. Note that by this definition the mean curvature is the sum of the principal curvatures and differs from the more common definition by a factor 1 d−1. Note also that our sign convention is such that the unit sphere has positive mean curvature if ν is the unit outer normal. A fundamental identity that underpins the numerical method is the following relationship between the LaplaceBeltrami of the identity map and the mean curvature vector (1.4) ∆Γx = −Hν. Another identity we shall make use of when approximating higher order geometric flows on surfaces is for a smooth vector valued function η (1.5)
Photogated humiditydriven motility
"... Hygroinduced motion is a fundamental process of energy conversion that is essential for applications that require contactless actuation in response to the day–night rhythm of atmospheric humidity. Here we demonstrate that mechanical bistability caused by rapid and anisotropic adsorption and desorpti ..."
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and desorption of water vapour by a flexible dynamic element that harnesses the chemical potential across very small humidity gradients for perpetual motion can be effectively modulated with light. A mechanically robust material capable of rapid exchange of water with the surroundings is prepared that undergoes
Simultaneous visualization of peroxisomes and cytoskeletal elements reveals actin and not microtubulebased peroxisome motility in plants
, 2002
"... Peroxisomes were visualized in living plant cells using a yellow fluorescent protein tagged with a peroxisomal targeting signal consisting of the SKL motif. Simultaneous visualization of peroxisomes and microfilaments/microtubules was accomplished in onion (Allium cepa) epidermal cells transiently e ..."
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Cited by 29 (2 self)
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expressing the yellow fluorescent proteinperoxi construct, a green fluorescent proteinmTalin construct that labels filamentousactin filaments, and a green fluorescent proteinmicrotubulebinding domain construct that labels microtubules. The covisualization of peroxisomes and cytoskeletal elements revealed
Comparative analysis of mammalian sperm motility
 J. Cell Biol
, 1972
"... Spermatozoa of several mammalian species were studied by means of highspeed cinematography and electron microscopy. Three types of motile patterns were observed in mouse spermatozoa. The first type involved an asymmetrical beat which seemed to propel the sperm in circular paths. The second type inv ..."
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Cited by 5 (0 self)
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Spermatozoa of several mammalian species were studied by means of highspeed cinematography and electron microscopy. Three types of motile patterns were observed in mouse spermatozoa. The first type involved an asymmetrical beat which seemed to propel the sperm in circular paths. The second type
The Pattern of Growth and Flagellar Development in Motile
"... SUMMARY: By the use of a staining technique which enables the flagella and cell walls to be demonstrated simultaneously, the distribution of flagella on the component cells of motile Grampositive cocci has been examined. By comparison of these preparations with others made by the technique of Penn ..."
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SUMMARY: By the use of a staining technique which enables the flagella and cell walls to be demonstrated simultaneously, the distribution of flagella on the component cells of motile Grampositive cocci has been examined. By comparison of these preparations with others made by the technique
A.: Bacterial selforganisation and computation
, 2005
"... Researchers in the field of complex systems are often concerned with the study of collections of motile elements, such as fish, birds, insects and cells [15]. These organisms may exhibit characteristic patterns of selforganized collective behaviour such as shoaling [38], flocking [39], swarming [35 ..."
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Cited by 2 (0 self)
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Researchers in the field of complex systems are often concerned with the study of collections of motile elements, such as fish, birds, insects and cells [15]. These organisms may exhibit characteristic patterns of selforganized collective behaviour such as shoaling [38], flocking [39], swarming
Increased motility of Escherichia coli by insertion sequence element integration into the regulatory region of the flhD operon
 J
, 2004
"... This article cites 64 articles, 38 of which can be accessed free ..."
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Cited by 11 (0 self)
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This article cites 64 articles, 38 of which can be accessed free
Results 1  10
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