Results 101 to 110 of about 6,310,275 (287)

On Fréchet theorem in the set of measure preserving functions over the unit interval

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In this paper, we study the Fréchet theorem in the set of measure preserving functions over the unit interval and show that any measure preserving function on [0,1] can be approximated by a sequence of measure preserving piecewise linear continuous ...
So-Hsiang Chou, Truc T. Nguyen
doaj   +1 more source

The ubiquitin system in normal and infected germinal center B cells

open access: yesFEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis   +2 more
wiley   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

On the almost continuity of the diagonal of functions

open access: yes, 1999
Let \(\mathcal A_0\) be the set of almost continuous mappings of the real line, vanishing at the points of discontinuity. For \(f\in \mathcal A_0\), denote by \(\Delta _{\mathcal A_0}(f)\) the set of \(g\in \mathcal A_0\) such that the diagonal map \(f\Delta g\) defined by \(f\Delta g(x)=(f(x),g(x))\) is almost continuous and vanishes at the points of ...
Doliwa, Dariusz, Pawlak, Ryszard Jerzy
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Almost α-γ-Irresolute Functions

open access: yesJournal of New Results in Science, 2014
functions called almost γ-irresolute functions and almost α-γirresolute functions in topological spaces. We obtain several characterizations of these classes and study their properties and investigate the relationships with the known non-continuous ...
O. Ravi
doaj  

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola   +11 more
wiley   +1 more source

Dependence results on almost periodic and almost automorphic solutions of evolution equations

open access: yesElectronic Journal of Differential Equations, 2010
We consider the semilinear evolution equations $x'(t) = A(t) x(t) + f(x(t), u(t),t)$ and $x'(t) = A(t) x(t) + f(x(t), zeta,t)$ where $A(t)$ is a unbounded linear operator on a Banach space X and f is a nonlinear operator.
Joel Blot   +2 more
doaj  

θ-regular spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
In this paper we define a topological space X to be θ-regular if every filterbase in X with a nonempty θ-adherence has a nonempty adherence. It is shown that the class of θ-regular topological spaces includes rim-compact topological spaces and that θ ...
Dragan S. Janković
doaj   +1 more source

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