By Attila Askar (auth.), Nuri Akkaş (eds.)
The NATO complicated examine Institute on Biomechanics of energetic flow and department of Cells was once held September 19-29, 1993 in Istanbul and the complaints are provided during this quantity. Sixty-eight scientists from 16 international locations attended. Prof. J. Bereiter-Hahn of Goethe-Universitat, Frankfurt, Germany, Prof. A.K. Harris of the college of North Carolina, Chapel Hill, united states, Prof. R.M. Nerem of Georgia Institute of know-how, Atlanta, united states and Prof. R. Skalak of the collage of California, San Diego, united states have been the contributors of the overseas Organizing Committee. because the clinical Director of the Institute, I desire to show my honest appreciation for his or her information with out which the Institute couldn't have taken position. This Institute is the 3rd one of many conferences that are now known as "the NATO Istanbul conferences on Cytomechanics". the 1st one used to be the NATO complicated study Workshop on Biomechanics of cellphone department which used to be held October 12-17, 1986 in Istanbul. The court cases have been released as NATO ASI sequence A existence Sciences Vol. 132 by way of Plenum Press in 1987. the second was once the NATO complicated examine Institute on Biomechanics of energetic stream and Deformation of Cells which was once held September 3-13, 1989 in Istanbul. The complaints have been released as NATO ASI sequence H : cellphone Biology Vol. forty two by way of Springer-Verlag in 1990.
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Extra resources for Biomechanics of Active Movement and Division of Cells
The site where the cell constricts itself is called the "cleavage furrow". The process of constriction is called by either of two synonymous names: either "cytokinesis" or, more colloquially, "cleavage". These should not, however, be confused with mitosis, which consists of the partitioning of the chromosomes into the two daughter nuclei. Thus, you could say that mitosis is nuclear division, while cytokinesis is cytoplasmic division. It is also important to realize that these two processes are distinct from one another, with each having its own physical mechanism (albeit neither of them is completely understood).
The second set of experiments supporting stimulatory signals involved cells that were pinched into hour-glass or "dumb-bell" shapes by pairs of fine glass hooks that were looped around the cell and pulled in opposite directions (Rappaport and Rappaport, 1988). This was done prior to mitosis, and sometimes the nucleus and developing MA found themselves completely on one side of the constriction, or completely on the other (rather than being situated inside the isthmus between the two sides, as I am told had been the original idea).
Even worse, this range has to be made smaller if the cell is smaller; and remember that in a cleaving egg, each sequential division involves cells that are half the size of the previous one. Are we to suppose that the range of the stimulatory effects somehow declines automatically so as to match what is needed to control the formation of contractile rings in the ever-smaller daughter cells? It is not yet clear whether such considerations will lead to a disproof of this whole type of theory-or whether they will perhaps lead to the prediction of otherwise entirely unexpected phenomena, the experimental confirmation of which will then place all these theories on a new footing.
Biomechanics of Active Movement and Division of Cells by Attila Askar (auth.), Nuri Akkaş (eds.)