Cells patterning

The honeycomb roof is made from a hexagonal cell pattern similar to a beehive in appearance. The honeycomb is glued to a top and bottom aluminum skin that seals it. This roof rests directly on the Hquid. 

Fig. 13. Common cell patterns ia gravure coating (a) quadrangle (b) pyramid and (c) trihelical (2).

Of the 12 possible initial states with 5 live cells, 5 yield the null state within t = A steps, 2 yield a stable state and four lead to the same period two oscillator marking the end of the evolution of state E in figure 3.67 In marked contrast to this rather benign behavior, however, the remaining 5-cell pattern - called the R-pentamino -evolves in a considerably more dramatic fashion. 

This remarkable five five-cell pattern is called a glider because after two iteration steps it produces a pattern that is both diagonally displaced by one site and reflected in a diagonal line - i.e., patterns separated by two steps are related by a glide reflection. In this way, the original pattern is reproduced in a diagonally displaced position every four iterations. 

This example uses the variegated cell pattern aabb shown in Figure 3.6. Use Example 3.3 in the program CASim. Results from this example are compared... 

Fig. 6. (a) The flow pattern assumed in the physical model for the motion near the wall, (b) A more realistic flow pattern of the motion, (c) The roll cell pattern near the wall in a section normal to the main direction of flow. 

K. Sander, Pattern specification in the insect embryo. In Cell Patterning. Ciba Foundation Symposium 29, Elsevier, Amsterdam, 1975, pp. 241-263. 

Bernhardt C, Zhao M, Gonzalez A, Lloyd A, Schiefelbein J. 2005. The bHLH genes GL3 and EGL3 participate in an intercellular regulatory circuit that controls cell patterning in the Arabidopsis root epidermis. Development 132 291-298. 

Schmidt, W., Santi, S., Pinton, R., and Varanini, Z. (2007). Water-extractable humic substances alter root development and epidermal cell pattern in Arabidopsis. Plant Soil 300,... 

Scoazec, J. Y., Berger, F., Magaud, J. P., Brochier, J., Coiffier, B., and Bryon, P. A., The dendritic reticulum cell pattern in B cell lymphomas of the small cleaved, mixed, and large cell types An immunohistochemical study of 48 cases. Hum. Pathol. 20, 124—131 (1989). 

Adherent cells have also been patterned using cell-adhesive and non-cell-adhesive microdomains created on a glass coverslip. This coverslip was then bonded with a PDMS channel layer for cell patterning [857]. For instance, endothelia or astrocyte-neuron cocultures were plated only on the cell-adhesive poly-L-lysine microdomains, but not on the non-adhesive agarose (1%) microdomains. Subsequently, calcium wave measurements were made to study calcium signaling of cells in two modes (1) within confluent cell microdomains, and (2) across neighboring, but spatially disconnected, microdomains [857]. 

Laminin Contact-inhibition in cell cocultures, additional cell patterning with PEG-DA microwells Coculture of primary rat hepatocytes and 3T3 fibroblasts Contact-printing of protein 2004 [124]... 

Frimat J-P, Menne H, Michels A et al (2009) Plasma stencilling methods for cell patterning. Anal Bioanal Chem 395(3) 601-609... 

Zhang SG, Yan L, Altman M et al (1999) Biological surface engineering a simple system for cell pattern formation. Biomaterials 20(13) 1213-1220... 

Takahashi H, Emoto K, Dubey M et al (2008) Imaging surface immobilization chemistry correlation with cell patterning on non-adhesive hydrogel thin films. Adv Funct Mater 18(14) 2079-2088... 

Rosenthal A, Macdonald A, Voldman J (2007) Cell patterning chip for controlling the stem cell microenvironment. Biomaterials 28(21) 3208-3216... 

Figure 16. A normal cell and a cancer cell pattern of a human liver.

Flfl. 7- 12 Benard-cell pattern in enclosed fluid layer heated from below, from Ref. 33... 

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