Results 241 to 250 of about 288,674 (278)
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Journal of Knot Theory and Its Ramifications, 1994
A Lissajous knot is defined to be one isotopic to a knot which admits a parametrization (for 0≤t≤2π) [Formula: see text] Motivation for considering Lissajous knots came originally from the study of DNA molecular configurations. We will show that a Lissajous knot necessarily has Kervaire invariant zero so that the trefoil, figure-8 and the (2,5) torus
Bogle, M. G. V. +3 more
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A Lissajous knot is defined to be one isotopic to a knot which admits a parametrization (for 0≤t≤2π) [Formula: see text] Motivation for considering Lissajous knots came originally from the study of DNA molecular configurations. We will show that a Lissajous knot necessarily has Kervaire invariant zero so that the trefoil, figure-8 and the (2,5) torus
Bogle, M. G. V. +3 more
openaire +2 more sources
Current Opinion in Structural Biology, 1995
Recent reports of the crystal structure of the glycoprotein hormone human chorionic gonadotrophin show that cystine knots are proving to be versatile structural motifs that enable the construction of a variety of proteins with different functional properties.
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Recent reports of the crystal structure of the glycoprotein hormone human chorionic gonadotrophin show that cystine knots are proving to be versatile structural motifs that enable the construction of a variety of proteins with different functional properties.
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Physical Review Letters, 2007
We study the mechanical response of elastic rods bent into open knots, focusing on the case of trefoil and cinquefoil topologies. The limit of a weak applied tensile force is studied both analytically and experimentally: the Kirchhoff equations with self-contact are solved by means of matched asymptotic expansions; predictions on both the geometrical ...
B, Audoly, N, Clauvelin, S, Neukirch
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We study the mechanical response of elastic rods bent into open knots, focusing on the case of trefoil and cinquefoil topologies. The limit of a weak applied tensile force is studied both analytically and experimentally: the Kirchhoff equations with self-contact are solved by means of matched asymptotic expansions; predictions on both the geometrical ...
B, Audoly, N, Clauvelin, S, Neukirch
openaire +2 more sources
1963
Almost everyone is familiar with at least the simplest of the common knots, e.g., the overhand knot, Figure 1, and the figure-eight knot, Figure 2. A little experimenting with a piece of rope will convince anyone that these two knots are different: one cannot be transformed into the other without passing a loop over one of the ends, i.e., without ...
Richard H. Crowell, Ralph H. Fox
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Almost everyone is familiar with at least the simplest of the common knots, e.g., the overhand knot, Figure 1, and the figure-eight knot, Figure 2. A little experimenting with a piece of rope will convince anyone that these two knots are different: one cannot be transformed into the other without passing a loop over one of the ends, i.e., without ...
Richard H. Crowell, Ralph H. Fox
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The Mathematical Gazette, 1961
The simplest overhand knot, if tied in a strip of paper and carefully pressed flat, forms a regular pentagon (Fig. 1). All higher order polygons can be produced in this way with the single exception of the regular hexagon which requires two strips. The reason for this exception is interesting.
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The simplest overhand knot, if tied in a strip of paper and carefully pressed flat, forms a regular pentagon (Fig. 1). All higher order polygons can be produced in this way with the single exception of the regular hexagon which requires two strips. The reason for this exception is interesting.
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2017
Sliding knots can be performed in many situations during an arthroscopic procedure. Their use is possible in quite all conditions w here a tissue should be fixed using a suture as in rotator cuff tear repair or Bankart repair. Many knots are described and performed by arthroscopic surgeons.
Compagnoni R. +2 more
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Sliding knots can be performed in many situations during an arthroscopic procedure. Their use is possible in quite all conditions w here a tissue should be fixed using a suture as in rotator cuff tear repair or Bankart repair. Many knots are described and performed by arthroscopic surgeons.
Compagnoni R. +2 more
openaire +1 more source
Controlling the shape and chirality of an eight-crossing molecular knot
CheM, 2021Charlie T Mcternan +2 more
exaly
An Unprecedented Knot‐like G‐Quadruplex Peripheral Motif
Angewandte Chemie - International Edition, 2019Fernaldo Richtia Winnerdy, Anh Tuan Phan
exaly