Products of Knots
نویسنده
چکیده
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منابع مشابه
A Topological Characterization of Knots and Links Arising from Site-specific Recombination
We develop a topological model of knots and links arising from a single (or multiple processive) round(s) of recombination starting with an unknot, unlink, or (2, m)torus knot or link substrate. We show that all knotted or linked products fall into a single family, and prove that the size of this family grows linearly with the cube of the minimum number of crossings. Additionally, we prove that...
متن کاملCharacterization of Knots and Links Arising From Site-specific Recombination on Twist Knots
We develop a model characterizing all possible knots and links arising from recombinationstarting with a twist knot substrate, extending previous work of Buck and Flapan. We show that allknot or link products fall into three well-understood families of knots and links, and prove that given apositive integer n, the number of product knots and links with minimal crossing number equal ...
متن کاملThe Therapeutic Effect of Thyroxine in Reducing the Size of Cold Knots of Thyroid
There is no English abstract.
متن کاملA comparative study of knotting decorations and knot tools Used in Ghaffarieh and Kabud domes of Maragheh city
Knotting is one of the most regular geometric decorations that spread with the spread of Islam. Among the different Islamic governments, the Ilkhani era is one of the most brilliant periods of prosperity and flourishing of art and architecture with the use of knot-making in Iran. Among the magnificent buildings of this period are Kabud Dome and Ghaffarieh Dome, located in Maragheh city, the ext...
متن کاملPredicting knot and catenane type of products of site-specific recombination on twist knot substrates.
Site-specific recombination on supercoiled circular DNA molecules can yield a variety of knots and catenanes. Twist knots are some of the most common conformations of these products, and they can act as substrates for further rounds of site-specific recombination. They are also one of the simplest families of knots and catenanes. Yet, our systematic understanding of their implication in DNA and...
متن کاملعود گره حقیقی بندناف: گزارش موردی
Background: True umbilical cord knot is one of the abnormalities of the umbilical cord. Active fetal movements create cord knotting. True umbilical cord knots are rare but may be associated with fetal distress and stillbirth. True umbilical cord knots are capable of impeding blood flow to the fetus.Case presentation: A 26-year old primigravid woman was first treated for genital herpes simplex v...
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