Results 51 to 60 of about 28,541,050 (306)
Correlation of Matrix Metalloproteinases and Tissue Inhibitors of Matrix Metalloproteinase Expression in Ileal Carcinoids, Lymph Nodes and Liver Metastasis with Prognosis and Survival [PDF]
, 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
Advanced ScienceConstructing colloidal particles into designated hierarchies with integrated functionalities offers insights into bottom‐up material fabrication. However, the arbitrary and controllable assembly of individual nanoscale and microscale particles remains ...
Jie Zhao +12 more
doaj +1 more source
Nonconvergence of the plain Newton-min algorithm for linear complementarity problems with a P-matrix [PDF]
Mathematical Programming, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ben Gharbia, Ibtihel +1 more
openaire +2 more sources
Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions
FEBS Letters, EarlyView.The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang +4 more
wiley +1 more source
A polynomial-time algorithm for the tridiagonal and Hessenberg P-matrix linear complementarity problem [PDF]
Operations Research Letters, 2012 We give a polynomial-time dynamic programming algorithm for solving the linear complementarity problem with tridiagonal or, more generally, Hessenberg P-matrices. We briefly review three known tractable matrix classes and show that none of them contains all tridiagonal P-matrices.
Bernd Gärtner, Markus Sprecher
openaire +4 more sources
The microbiome in human skin aging
FEBS Letters, EarlyView.Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana +3 more
wiley +1 more source
MATRIX p-NORMS ARE NP-HARD TO APPROXIMATE IF p not equal to 1, 2, infinity
, 2010 We show that, for any rational p ∈ [1,∞) [p is an element of the set [1, infinity)] except p = 1, 2, unless P = NP, there is no polynomial time algorithm which approximates the matrix p-norm to arbitrary relative precision.
Olshevsky, A. +4 more
core +1 more source
Matrix regularization of classical Nambu brackets and super p-branes
Journal of High Energy Physics, 2021 We present an explicit matrix algebra regularization of the algebra of volume-preserving diffeomorphisms of the n-torus. That is, we approximate the corresponding classical Nambu brackets using sl N n 2 ℂ $$ \mathfrak{sl}\left({N}^{\left\lceil \frac{n}{2}
Meer Ashwinkumar +2 more
doaj +1 more source
The P-matrix and a matching radius model for pion-hadron scattering [PDF]
Physics Letters B, 1986 Abstract A matching radius model of pion-hadron scattering is developed by assuming the continuity of the axial current. This model is applied to the simplified situation of a pion scattering off a static empty bag to study the relationship between P -matrix poles and the bag model primitives.
M.J. Iqbal, B.K. Jennings
openaire +1 more source
FEBS Letters, EarlyView.Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante +10 more
wiley +1 more source