Results 41 to 50 of about 1,396,823 (294)
Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
wiley +1 more source
Positive almost periodic solution for competitive and cooperative Nicholson's blowflies system
AIMS MathematicsIn this paper, we investigate a class of competitive and cooperative Nicholson's blowfly equations. By applying the Lyapunov functional and analysis technique, the conditions for the existence and exponential convergence of a positive almost periodic ...
Wentao Wang
doaj +1 more source
Some determinantal inequalities for Hadamard and Fan products of matrices
Journal of Inequalities and Applications, 2016 In this note, we generalize some determinantal inequalities which are due to Lynn (Proc. Camb. Philos. 60:425-431, 1964), Chen (Linear Algebra Appl. 368:99-106, 2003) and Ando (Linear Multilinear Algebra 8:291-316, 1980).
Xiaohui Fu, Yang Liu
doaj +1 more source
Completions of M-matrix patterns
Linear Algebra and its Applications, 1998 AbstractA list of positions in an n × n real matrix (a pattern) is said to haveM-completion if every partial M-matrix that specifies exactly these positions can be completed to an M-matrix. Let Q be a pattern that includes all diagonal entries and let G be its digraph. The following are equivalent.
openaire +1 more source
M-matrix generalized inverses of M-matrices
Linear Algebra and its Applications, 1997 AbstractLet P be an n × n nonnegative, irreducible, and stochastic matrix, and consider the associated singular and irreducible M-matrix Q = I − P. We show that without further restrictive spectral or combinatorial assumptions on P, it is reasonable to expect that the group inverse Q♯ of Q will be an M-matrix only when P lies in a small wedge about a ...
Michael Neumann, Yonghong Chen
openaire +2 more sources
Inverse M-matrix inequalities and generalized ultrametric matrices [PDF]
Linear Algebra and its Applications, 1995 AbstractWe use weighted directed graphs to introduce a class of nonnegative matrices which, under a simple condition, are inverse M-matrices. We call our class the generalized ultrametic matrices, since it contains the class of (symmetric) ultrametric matrices and some unsymmetric matrices.
Michael Neumann +3 more
openaire +1 more source
Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation
FEBS Letters, EarlyView.Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley +1 more source
The M-matrix group inverse problem for distance-biregular graphs
Computational and Applied Mathematics, 2023 AbstractIn this work, we obtain the group inverse of the combinatorial Laplacian matrix of distance-biregular graphs. This expression can be obtained trough the so-called equilibrium measures for sets obtained by deleting a vertex. Moreover, we show that the two equilibrium arrays characterizing distance-biregular graphs can be expressed in terms of ...
Abiad Monge, Aida +3 more
openaire +3 more sources
FEBS Letters, EarlyView.B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro +2 more
wiley +1 more source
Teorema Pohon Matriks Untuk Menentukan Banyaknya Pohon Rentangan Graf Bipartisi Komplit (Km,n)
Fokus, 2016 This research aims to observes panning tree number of complete bipartite graph (Km,n) by matrix-tree theorem.This research was using library research method which the step are:(1)Drawing complete bipartite graph (Km,n) where m= 1,2,3,4,and; (2)Determinin
Novia Rahmawati
doaj +1 more source