Results 131 to 140 of about 5,619,071 (301)

Positive solutions of a class of linear systems

open access: yesLinear Algebra and its Applications, 1985
This delightful paper consists of a useful sufficient condition in order that the solution of a linear algebraic system have positive components and explains how this result applies directly to ecological models. For the matrices A, \(m\times m\), B, \(m\times n-m\), C, n-m\(\times m\), D, n-m\(\times n-m\), x, \(m\times 1\), y, n-m\(\times 1\), f, \(m\
openaire   +2 more sources

Expression and DNA methylation of 20S proteasome subunits as prognostic and resistance markers in cancer

open access: yesMolecular Oncology, EarlyView.
Comprehensive analysis of genomic mutations, gene expression, DNA methylation, and pathway analysis of TCGA data was carried out to define cancer types in which proteasome subunits expression is associated with worse survival. Albeit the effect of specific proteasome subunits on cellular function, the main role of the proteasome is better evaluated ...
Ruba Al‐Abdulla   +5 more
wiley   +1 more source

Positive Solutions of Quasilinear Elliptic Equations

open access: yesJournal of Mathematical Analysis and Applications, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Detecting homologous recombination deficiency for breast cancer through integrative analysis of genomic data

open access: yesMolecular Oncology, EarlyView.
This study develops a semi‐supervised classifier integrating multi‐genomic data (1404 training/5893 validation samples) to improve homologous recombination deficiency (HRD) detection in breast cancer. Our method demonstrates prognostic value and predicts chemotherapy/PARP inhibitor sensitivity in HRD+ tumours.
Rong Zhu   +12 more
wiley   +1 more source

Positive solutions for Neumann boundary value problems of nonlinear second-order integro-differential equations in ordered Banach spaces

open access: yesJournal of Inequalities and Applications, 2011
The paper deals with the existence of positive solutions for Neumann boundary value problems of nonlinear second-order integro-differential equations - u ″ ( t ) + M u ( t ) = f ( t , u ( t ) , ( S u ) ( t ) ) , 0
Liang Yue, Yang He
doaj  

Positive solutions for superlinear elliptic equations

open access: yesJournal of Mathematical Analysis and Applications, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Data‐driven discovery of gene expression markers distinguishing pediatric acute lymphoblastic leukemia subtypes

open access: yesMolecular Oncology, EarlyView.
This study investigates gene expression differences between two major pediatric acute lymphoblastic leukemia (ALL) subtypes, B‐cell precursor ALL, and T‐cell ALL, using a data‐driven approach consisting of biostatistics and machine learning methods. Following analysis of a discovery dataset, we find a set of 14 expression markers differentiating the ...
Mona Nourbakhsh   +8 more
wiley   +1 more source

Monotone positive solutions for p-Laplacian equations with sign changing coefficients and multi-point boundary conditions

open access: yesElectronic Journal of Differential Equations, 2010
We prove the existence of three monotone positive solutions for the second-order multi-point boundary value problem, with sign changing coefficients, $$displaylines{ [p(t)phi(x'(t))]'+f(t,x(t),x'(t))=0,quad tin (0,1),cr x'(0)=-sum_{i=1}^la _ix'(xi_i)
Jianye Xia, Yuji Liu
doaj  

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