نتایج جستجو برای: t contraction

تعداد نتایج: 757715  

Journal: :Filomat 2022

In this paper, weconsider the fourth order p-Laplacian beam equation (?p(u??(t)))?? = f (t, u(t), u??(t)) with integral boundary conditions u??(0) u??(1) 0, u(0)??u?(0) ?10 g1(s)u(s)ds, u(1)+?u?(1) ? 10 g2(s)u(s)ds. By using contraction mapping principle, we establish existence and uniqueness of solutions for problem. The monotony iterations is also considered. At last, some examples are presen...

Journal: :Journal of immunology 2013
Chih-wen Ou-Yang Minghua Zhu Sarah A Sullivan Deirdre M Fuller Weiguo Zhang

Linker for activation of T cells (LAT) is a transmembrane adaptor protein that links TCR engagement to downstream signaling events. Although it is clear that LAT is essential in thymocyte development and initiation of T cell activation, its function during T cell expansion, contraction, and memory formation remains unknown. To study the role of TCR-mediated signaling in CD8 T cells during the c...

Journal: :bulletin of the iranian mathematical society 2013
a. aghanians k. fallahi k. nourouzi

in this paper we discuss on the fixed points of asymptotic contractions and boyd-wong type contractions in uniform spaces equipped with an e-distance. a new version ofkirk's fixed point theorem is given for asymptotic contractions and boyd-wong type contractions is investigated in uniform spaces.

Journal: :Journal of immunology 2004
Alexander K Nussbaum J Lindsay Whitton

The effectiveness of protection conferred by CD8(+) memory T cells is determined by both their quality and their quantity, which suggests that vaccine efficacy might be improved if it were possible to increase the size of the memory pool. Approximately 90% of virus-specific CD8(+) T cells die during the contraction phase and, herein, we have attempted to increase the memory pool by reducing CD8...

Journal: :Pacific Journal of Mathematics 2021

Let $G$ be a finite group. For $G$-ring $A,$ let ${\rm Pic}^{\it G}({\it A})$ denote the equivariant Picard group of $A.$ We show that if $A$ is type algebra over field $k$ then contracted in sense Bass with contraction $H_{et}^{1}(G; Spec(A), \mathbb{Z}).$ This gives natural decomposition A[t, t^{-1}]}).$

Journal: :Journal of immunology 2007
Avi-Hai Hovav Michael W Panas Shaila Rahman Piya Sircar Geoffrey Gillard Mark J Cayabyab Norman L Letvin

The duration of Ag expression in vivo has been reported to have a minimal impact on both the magnitude and kinetics of contraction of a pathogen-induced CD8(+) T cell response. In this study, we controlled the duration of Ag expression by excising the ear pinnae following intradermal ear pinnae DNA immunization. This resulted in decreased magnitude, accelerated contraction and differentiation, ...

2009
KENNETH R. DAVIDSON

The commutant lifting theorem of Sz.Nagy and Foiaş [22, 21] is a central result in the dilation theory of a single contraction. It states that if T ∈ B(H) is a contraction with isometric dilation V acting on K ⊃ H, and TX = XT , then there is an operator Y with ‖Y ‖ = ‖X‖, V Y = Y V and PHY = XPH. This result is equivalent to Ando’s Theorem that two commuting contractions have a joint (power) d...

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