Results 41 to 50 of about 14,713,178 (309)

Correlation of Matrix Metalloproteinases and Tissue Inhibitors of Matrix Metalloproteinase Expression in Ileal Carcinoids, Lymph Nodes and Liver Metastasis with Prognosis and Survival [PDF]

open access: yes, 2009
Purpose: Ileal carcinoids are gut epithelial tumors originating from serotonin-containing enterochromaffin (EC) cells. Therapeutic options for effectively inhibiting the growth and spread of metastatic carcinoids are still limited.
Braun, Thomas   +11 more
core   +2 more sources

Characteristic polynomials of complex random matrix models [PDF]

open access: yes, 2002
We calculate the expectation value of an arbitrary product of characteristic polynomials of complex random matrices and their hermitian conjugates. Using the technique of orthogonal polynomials in the complex plane our result can be written in terms of
Akemann, G   +3 more
core   +1 more source

EPR of the V4+ ion in single crystals of pyrovanadates β-Mg2V2O7, α-Zn2V2O7: Spin-Hamiltonian parameters [PDF]

open access: yesMagnetic Resonance in Solids, 2018
The angular variation of V4+ electron paramagnetic resonance (EPR) line positions were recorded in single crystals of β-Mg2V2O7 and α-Zn2V2O7 at 120 K and 295 K in three mutually perpendicular planes in the temperature range from 120 to 295 K and at some
S.K. Misra, S.I. Andronenko
doaj  

New critical matrix models and generalized universality [PDF]

open access: yes, 2002
We study a class of one-matrix models with an action containing nonpolynomial terms. By tuning the coupling constants in the action to criticality we obtain that the eigenvalue density vanishes as an arbitrary real power at the origin, thus defining a ...
Akemann, G   +3 more
core   +1 more source

Matrix G-strands [PDF]

open access: yes, 2014
We discuss three examples in which one may extend integrable Euler–Poincare ordinary differential equations to integrable Euler–Poincare partial differentialequations in the matrix G-Strand context. After describing matrix G-Strand examples for SO(3) and
Holm, Darryl, Ivanov, Rossen
core   +1 more source

Difference matrix G.

open access: yes, 2023
Difference matrix G.
Zhenyin Chen (14063829)   +1 more
core   +1 more source

On α-adjacency energy of graphs and Zagreb index

open access: yesAKCE International Journal of Graphs and Combinatorics, 2021
Let A(G) be the adjacency matrix and D(G) be the diagonal matrix of the vertex degrees of a simple connected graph G. Nikiforov defined the matrix of the convex combinations of D(G) and A(G) as for If are the eigenvalues of (which we call α-adjacency ...
S. Pirzada   +3 more
doaj   +1 more source

Optimal generator matrix G [PDF]

open access: yes, 2013
Multiple antenna transmission methods are currently being developed all around the world for evolving 3G wireless standards. Space–Time Trellis Code (STTC) has been proven to use transmit diversity efficiently.
Kaharudin Dimyati   +5 more
core   +1 more source

A Note on Resistance Distances of Graphs

open access: yesFrontiers in Physics, 2022
Let G be a connected graph with vertex set V(G). The resistance distance between any two vertices u, v ∈ V(G) is the net effective resistance between them in the electric network constructed from G by replacing each edge with a unit resistor. Let S ⊂ V(G)
Wensheng Sun, Yujun Yang
doaj   +1 more source

Matrix

open access: yes, 2018
Matrix of 53 dental characters and 13 paromomyid ...
Sergi López-Torres (7061078)   +1 more
core   +3 more sources

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