نتایج جستجو برای: cell shape
تعداد نتایج: 1852768 فیلتر نتایج به سال:
Cancer is characterized by abnormally excessive cell proliferation. Cell proliferation, the process by which a cell grows and divides to produce two daughter cells. Each of these daughter cells divides to produce two new cells, steps that are called cell cycle. Meanwhile, apoptosis is a highly regulated process of cell death, which is involved not only in the development of shape and morphogene...
We propose an alternative to Kendall’s shape space for reflection shapes of configurations in Rm with k labelled vertices, where reflection shape consists of all the geometric information that is invariant under compositions of similarity and reflection transformations. The proposed approach embeds the space of such shapes into the space P(k − 1) of (k − 1) × (k − 1) real symmetric positive sem...
Background: It was reported in a literature that approximately one third of the 4-cell stage embryos did not exhibit a tetrahedral shape. Non-tetrahedral embryos showed a lower in vitro developmental potential than tetrahedral embryos. Recently vitrification technology has been widely employed for embryo cryopreservation. The objective of this study was to prove our hypothesis that vitrified - ...
Adhesive micropatterns have become a standard tool to study cells under defined conditions. Applications range from controlling the differentiation and fate of single cells to guiding the collective migration of cell sheets. In long-term experiments, single cell normalization is challenged by cell division. For all of these setups, mathematical models predicting cell shape and dynamics can guid...
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