Results 31 to 40 of about 845,918 (219)
PP1-Dependent Formin Bnr1 Dephosphorylation and Delocalization from a Cell Division Site. [PDF]
PLoS ONE, 2016 Cell cycle ends with cytokinesis that is the physical separation of a cell into two daughter cells. For faithful cytokinesis, cells integrate multiple processes, such as actomyosin ring formation, contraction and plasma membrane closure, into coherent ...
Minami Orii +3 more
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Communicative & Integrative Biology, 2017 Chloroplasts have evolved from a cyanobacterial endosymbiont and multiply by dividing. Chloroplast division is performed by constriction of the ring-like protein complex (the PD machinery), which forms at the division site.
Nobuko Sumiya, Shin-ya Miyagishima
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The Arabidopsis arc5 and arc6 mutations differentially affect plastid morphology in pavement and guard cells in the leaf epidermis. [PDF]
PLoS ONE, 2018 Chloroplasts, or photosynthetic plastids, multiply by binary fission, forming a homogeneous population in plant cells. In Arabidopsis thaliana, the division apparatus (or division ring) of mesophyll chloroplasts includes an inner envelope transmembrane ...
Makoto T Fujiwara +7 more
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Actin–Microtubule Crosstalk Imparts Stiffness to the Contractile Ring in Fission Yeast
Cells, 2023 Actin–microtubule interactions are critical for cell division, yet how these networks of polymers mutually influence their mechanical properties and functions in live cells remains unknown.
Kimberly Bellingham-Johnstun +4 more
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Embeddings in division rings [PDF]
Transactions of the American Mathematical Society, 1970 A method for embedding a certain class of integral domains in division rings is devised. Integral domains A A are constructed with a generalized valuation into a (noncommutative) totally ordered semigroup that need not be discrete. Then the multiplicative semigroup A ∖ { 0 } A\backslash
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Multiplicative groups of division rings [PDF]
Mathematical Proceedings of the Royal Irish Academy, 2014 Exactly 170 years ago, the construction of the real quaternion algebra by William Hamilton was announced in the Proceedings of the Royal Irish Academy. It became the first example of non-commutative division rings and a major turning point of algebra.
Hazrat, Roozbeh (R16959) +2 more
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A model of membrane contraction predicting initiation and completion of bacterial cell division [PDF]
, 2013 Bacterial cell division involves a complex and dynamic sequence of events whereby polymers of the protein FtsZ assemble at the division plane and rearrange to achieve the goal of contracting the cell membrane at the site of cell division, thus dividing ...
Alison Rodger +59 more
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Rings with a finite set of nonnilpotents
International Journal of Mathematics and Mathematical Sciences, 1979 Let R be a ring and let N denote the set of nilpotent elements of R. Let n be a nonnegative integer. The ring R is called a θn-ring if the number of elements in R which are not in N is at most n. The following theorem is proved: If R is a θn-ring, then R
Mohan S. Putcha, Adil Yaqub
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On Rings Whose Principal Ideals are Generalized Pure Ideals [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2007 This paper , introduces the notion of a right PIGP-ring (a ring in which every principal ideal of R is a GP-ideal ) with some of their basic properties ; we also give necessary and sufficient conditions for PIGP-rings to be a division ring and a regular ...
Husam Mohammad
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On ordered division rings [PDF]
Colloquium Mathematicum, 2001 Prestel introduced a generalization of the notion of an ordering of a field, which is called a semiordering. Prestel's axioms for a semiordered field differ from the usual (Artin-Schreier) postulates in requiring only the closedness of the domain of positivity under x → xa2 for nonzero a, instead of requiring that positive elements have a positive ...
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