Results 21 to 30 of about 96,216 (303)

Węzeł i supeł: Od metaforyzacji do materioforyzacji dyskursów teoretycznych

open access: yesPamiętnik Teatralny, 2022
This article attempts a critical reflection on the metaphorization of contemporary theoretical discourses, using the example of the metaphor of the knot.
Filip Ryba
doaj   +1 more source

Knotwood and Branchwood Polyphenolic Extractives of Silver Fir, Spruce and Douglas Fir and Their Antioxidant, Antifungal and Antibacterial Properties

open access: yesMolecules, 2023
The extractive contents of three softwood species largely used in the wood industry, namely Abies alba (Silver fir), Picea abies (spruce) and Pseudotsuga menziesii (Douglas fir), have been determined quantitatively for knots and at different points ...
Pauline Gérardin   +6 more
doaj   +1 more source

CHEBYSHEV KNOTS [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2011
A Chebyshev knot is a knot which admits a parametrization of the form x(t) = Ta(t); y(t) = Tb(t); z(t) = Tc(t + ϕ), where a, b, c integers, Tn(t) is the Chebyshev polynomial of degree n, and φ ∈ R. Chebyshev knots are non-compact analogues of the classical Lissajous knots. We show that there are infinitely many Chebyshev knots with φ = 0.
Koseleff, Pierre-Vincent, Pecker, Daniel
openaire   +2 more sources

Knots not concordant to L-space knots [PDF]

open access: yesPeriodica Mathematica Hungarica, 2020
AbstractIn this short note we use methods of Friedl, Livingston and Zentner to show that there are knots that are not algebraically concordant to a connected sum of positive and negative L-space knots.
openaire   +2 more sources

Knot lattice homology in L-spaces [PDF]

open access: yes, 2015
We show that the knot lattice homology of a knot in an L-space is chain homotopy equivalent to the knot Floer homology of the same knot (viewed these invariants as filtered chain complexes over the polynomial ring Z/2Z[U]).
Ozsvath, Peter Steven   +4 more
core   +1 more source

Knots with proprety R+

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
If we consider the set of manifolds that can be obtained by surgery on a fixed knot K, then we have an associated set of numbers corresponding to the Heegaard genus of these manifolds. It is known that there is an upper bound to this set of numbers.
Bradd Evans Clark
doaj   +1 more source

A geometric characterization of the upper bound for the span of the jones polynomial [PDF]

open access: yes, 2011
Let D be a link diagram with n crossings, sA and sB be its extreme states and |sAD| (respectively, |sBD|) be the number of simple closed curves that appear when smoothing D according to sA (respectively, sB). We give a general formula for the sum |sAD| +
PEDRO M. G. MANCHÓN   +4 more
core   +1 more source

Analysis on the co-expression of hydrophobin Fv-Hyd1 and its potential transcription factor Fv-Rtg3 in Flammulina velutipes

open access: yes浙江大学学报. 农业与生命科学版, 2016
Flammulina velutipes, with high edible and medicinal value, was widely cultivated in China and Southeast Asia. Being worthy to be noted, the fruiting body formation and development of F.
CHEN Renliang   +7 more
doaj   +1 more source

Molecular Knots [PDF]

open access: yesAngewandte Chemie International Edition, 2017
AbstractThe first synthetic molecular trefoil knot was prepared in the late 1980s. However, it is only in the last few years that more complex small‐molecule knot topologies have been realized through chemical synthesis. The steric restrictions imposed on molecular strands by knotting can impart significant physical and chemical properties, including ...
Fielden, SDP, Leigh, DA, Woltering, SL
openaire   +5 more sources

The effect of trophism level and exploitation intensity on the production characteristics of grassland community dominated by Festuca arundinacea Schreb.

open access: yesPlant, Soil and Environment, 2011
In 2004-2009, a small-plot trial was conducted on permanent grassland dominated by Festuca arundinacea Schreb. on the mesohygrophytic site in order to evaluate effects of four levels of nutrition: F1 = without NPK fertilization, F2 = P30 + K60, F3 = N90 +
F. Hrabě, P. Knot
doaj   +1 more source

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