Results 1 to 10 of about 66,871 (307)

knots geometry and its training in school [PDF]

open access: yesFanāvarī-i āmūzish, 2007
Euclidean geometry has been taught to students in schools for many years. Topological structures are among the topics that have not received much attention in school geometry.
E. Reyhani
doaj   +3 more sources

THE USE OF PENALIZED WEIGHTED LEAST SQUARE TO OVERCOME CORRELATIONS BETWEEN TWO RESPONSES

open access: yesBarekeng, 2022
The non-parametric regression model can consider two correlated responses. However, for these conditions, we cannot use the usual estimation process because there are violations of assumptions.
Anna Islamiyati   +6 more
doaj   +1 more source

REGRESSION NONPARAMETRIC SPLINE ESTIMATION ON BLOOD GLUCOSE OF INPATIENTS DIABETES MELLITUS AT SAMARINDA HOSPITAL

open access: yesBarekeng, 2023
This study used a biresponse nonparametric regression method with truncated spline estimation that used two response variables. Nonparametric regression method is used when the regression curve is not known for its shape and pattern.One of the ...
Ar Ruum Mia Sari   +2 more
doaj   +1 more source

Minimum Number of Colors: the Turk’s Head Knots Case Study [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
An $r$-coloring of a knot diagram is an assignment of integers modulo $r$ to the arcs of the diagram such that at each crossing, twice the the number assigned to the over-arc equals the sum of the numbers assigned to the under-arcs, modulo $r$.
Pedro Lopes, João Matias
doaj   +1 more source

Assortment structure in poplar plantation Populus x euramerjcana I-214 based on European standard [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2005
Assortment structure in poplar plantation Populus x euramericana I-214 was obtained by European standard for round wood. Based on the data of theoretical cutting, the correlation between total volume of assortments and tree diameter at breast height was ...
Danilović Milorad, Janjatović Gojko
doaj   +1 more source

Aesthetical entanglements in mathematics education

open access: yesFrontiers in Education, 2023
In this study, we develop a perspective on the diverse aesthetics historically associated with mathematics, inspired by Rancière's approach to aesthetics and politics.
Ricardo Nemirovsky   +2 more
doaj   +1 more source

Colored Tutte polynomials and composite knots [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Surveying the results of three recent papers and some currently ongoing research, we show how a generalization of Brylawski's tensor product formula to colored graphs may be used to compute the Jones polynomial of some fairly complicated knots and, in ...
Gábor Hetyei   +2 more
doaj   +1 more source

Scaling Conjecture Regarding the Number of Unknots among Polygons of N≫1 Edges

open access: yesPhysics, 2021
The conjecture is made based on a plausible, but not rigorous argument, suggesting that the unknot probability for a randomly generated self-avoiding polygon of N≫1 edges has only logarithmic, and not power law corrections to the known leading ...
Alexander Y. Grosberg
doaj   +1 more source

Spatial large-span structures

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2023
Objective. This article discusses spatial large-span structures; provides features of their work; as well as layout examples. General dimensions and ways of stabilizing displacements are given.Method.
A. K. Yusupov   +2 more
doaj   +1 more source

Influence of ionic conditions on knotting in a coarse-grained model for DNA

open access: yesFrontiers in Chemistry, 2023
We investigate knotting probabilities of long double-stranded DNA strands in a coarse-grained Kratky-Porod model for DNA with Monte Carlo simulations. Various ionic conditions are implemented by adjusting the effective diameter of monomers.
Sarah Wettermann   +2 more
doaj   +1 more source

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