Results 111 to 120 of about 14,038,334 (310)

Periodic solutions for a neutral delay predator-prey model with nonmonotonic functional response

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
By using a continuation theorem based on coincidence degree theory, some new sufficient conditions are obtained for the existence of positive periodic solutions of the following neutral delay predator-prey model with nonmonotonic functional response ...
Lian Duan
doaj   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

Singular integral operators. The case of an unlimited contour

open access: yesJournal of Numerical Analysis and Approximation Theory, 2005
Let \(\Gamma\)be a closed or unclosed unlimited contour, a shift \(\alpha(t)\) maps homeomorphicly the contour \(\Gamma\) onto itself with preserving or reversing the direction on \(\Gamma\) and also satisfies the conditions: for some natural \(n\geq2\),
V. Neaga
doaj   +2 more sources

Nuclear dependence of light neutral meson production in p–A collisions at 400 GeV with NA60

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The NA60 experiment has studied low-mass muon pair production in proton–nucleus collisions with a system of Be, Cu, In, W, Pb and U targets, using a 400 GeV proton beam at the CERN SPS.
R. Arnaldi   +54 more
doaj   +1 more source

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

open access: yesMolecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang   +8 more
wiley   +1 more source

Glycosylated LGALS3BP is highly secreted by bladder cancer cells and represents a novel urinary disease biomarker

open access: yesMolecular Oncology, EarlyView.
Urinary LGALS3BP is elevated in bladder cancer patients compared to healthy controls as detected by the 1959 antibody–based ELISA. The antibody shows enhanced reactivity to the high‐mannose glycosylated variant secreted by cancer cells treated with kifunensine (KIF).
Asia Pece   +18 more
wiley   +1 more source

Survivin and Aurora Kinase A control cell fate decisions during mitosis

open access: yesMolecular Oncology, EarlyView.
Aurora A interacts with survivin during mitosis and regulates its centromeric role. Loss of Aurora A activity mislocalises survivin, the CPC and BubR1, leading to disruption of the spindle checkpoint and triggering premature mitotic exit, which we refer to as ‘mitotic slippage’.
Hana Abdelkabir   +2 more
wiley   +1 more source

Existence of positive solutions for semipositone dynamic system on time scales

open access: yesElectronic Journal of Differential Equations, 2008
In this paper, we study the following semipositone dynamic system on time scales $$displaylines{ -x^{DeltaDelta}(t)=f(t,y)+p(t), quad tin(0,T)_{mathbb{T}},cr -y^{DeltaDelta}(t)=g(t,x), quad tin(0,T)_{mathbb{T}},cr x(0)=x(sigma^{2}(T))=0, cr ...
You-Wei Zhang, Na-Na Shao
doaj  

Three positive solutions to initial-boundary value problems of nonlinear delay differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
In this paper, we consider the existence of triple positive solutions to the boundary value problem of nonlinear delay differential equation $$ \left\{ \begin{array}{lll} (\phi(x'(t)))^{\prime} + a(t)f(t,x(t),x'(t),x_{t})=0, \ \ 0 ...
Yuming Wei, Patricia J. Y. Wong
doaj   +1 more source

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