Results 21 to 30 of about 3,618,002 (268)

Wrapping a man-made dura around reconstructed nerve sleeve avoid residue or recurrence of sacral Tolav cysts

open access: yesInterdisciplinary Neurosurgery, 2019
Objective: To evaluate the therapy effect on patients with sacral extradural meningeal cysts with nerve root fibers by wrapping a man-made dura around reconstructed nerve sleeve.
Jian-jun Sun, Doctorate's degree, M.D.   +5 more
doaj   +1 more source

Invariants of Stable Maps between Closed Orientable Surfaces

open access: yesMathematics, 2021
In this paper, we will consider the problem of constructing stable maps between two closed orientable surfaces M and N with a given branch set of curves immersed on N.
Catarina Mendes de Jesus S.   +1 more
doaj   +1 more source

Implicit Equations of the Henneberg-Type Minimal Surface in the Four-Dimensional Euclidean Space

open access: yesMathematics, 2018
Considering the Weierstrass data as ( ψ , f , g ) = ( 2 , 1 - z - m , z n ) , we introduce a two-parameter family of Henneberg-type minimal surface that we call H m , n for positive integers ( m , n ) by using the ...
Erhan Güler   +2 more
doaj   +1 more source

The analysis of the co-authorship graph of Iranian researchers in mathematics by graph parameters [PDF]

open access: yesپژوهشنامه علم سنجی, 2020
Purpose: The objective of this research is to study and compare the co-authorship graphs (networks) of Iranian researchers in the main fields of mathematics by using records, extracted from WOS and Google Scholar, and graph parameters.
Farzad Shaveisi, Mostafa Amini
doaj   +1 more source

Degree-Degree Dependencies in Random Graphs with Heavy-Tailed Degrees [PDF]

open access: yesInternet Mathematics, 2014
Mixing patterns in large self-organizing networks, such as the Internet, the World Wide Web, social, and biological networks are often characterized by degree-degree dependencies between neighboring nodes. In assortative networks, the degree-degree dependencies are positive (nodes with similar degrees tend to connect to each other), whereas in ...
Remco van der Hofstad, Nelly Litvak
openaire   +1 more source

Ranks for Families of Permutation Theories

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
The notion of rank for families of theories, similar to Morley rank for fixed theories, serves as a measure of complexity for given families. There arises a natural problem of describing a rank hierarchy for a series of families of theories.
N. D. Markhabatov
doaj   +1 more source

Gutman index‎, ‎edge-Wiener index and edge-connectivity [PDF]

open access: yesTransactions on Combinatorics, 2020
‎We study the Gutman index ${\rm Gut}(G)$ and the edge-Wiener index $W_e (G)$ of connected graphs $G$ of given order $n$ and edge-connectivity $\lambda$‎.
Jaya Mazorodze   +2 more
doaj   +1 more source

A data-driven method to reduce the impact of region-size on degree metrics in voxel-wise functional brain networks

open access: yesFrontiers in Neurology, 2014
Degree, which is the number of connections incident upon a node, measures the relative importance of the node within a network. By computing degree metrics in voxel-wise functional brain networks, many studies performed high-resolution mapping of brain ...
Cirong eLiu, Xiaoguang eTian
doaj   +1 more source

Vertex degrees close to the average degree

open access: yesDiscrete Mathematics, 2023
Let $G$ be a finite, simple, and undirected graph of order $n$ and average degree $d$. Up to terms of smaller order, we characterize the minimal intervals $I$ containing $d$ that are guaranteed to contain some vertex degree. In particular, for $d_+\in \left(\sqrt{dn},n-1\right]$, we show the existence of a vertex in $G$ of degree between $d_+-\left ...
Johannes Pardey, Dieter Rautenbach
openaire   +3 more sources

L’expression de l’intensité par la conséquence ou la cause

open access: yesCorela, 2005
Giving a consequence or a cause in addition to a fact, or even instead of it, in order to express its intensity, is a very widespread rhetorical device in French. In this article, we will first examine the two types of inferences such a device builds on,
Clara Romero
doaj   +1 more source

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