Results 71 to 80 of about 14,038,334 (310)
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
Positive solutions for a system of nonlinear boundary-value problems on time scales
Electronic Journal of Differential Equations, 2009 We determine the values of a parameter $lambda$ for which there exist positive solutions to the system of dynamic equations $$displaylines{ u^{Delta Delta}(t)+lambda p(t)f(v(sigma(t)))=0,quad tin[a, b]_mathbb{T}, cr v^{Delta Delta}(t)+lambda q(t)g(u(
A. Kameswara Rao
doaj
T-duality in (2, 1) superspace
Journal of High Energy Physics, 2019 We find the T-duality transformation rules for 2-dimensional (2,1) supersymmetric sigma-models in (2,1) superspace. Our results clarify certain aspects of the (2,1) sigma model geometry relevant to the discussion of T-duality.
M. Abou-Zeid +3 more
doaj +1 more source
Remark on CP-violating Polarization Asymmetry of tt-bar via Anomalous Couplings to gamma and Z
, 1998 We calculate the CP-violating polarization asymmetry of tt-bar, delta =[ sigma(ee-bar --> t(-)t-bar(-))-sigma(ee-bar --> t(+)t-bar(+)) ]/ sigma(ee-bar --> tt-bar), for the most general tt-bar gamma/Z couplings without dropping any non-standard ...
Hioki, Zenro, Ohkuma, Kazumasa
core +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
, 1999 We report new measurements of the electrical conductivity sigma of the canonical three-dimensional metal-insulator system Si:P under uniaxial stress S.
A. Blaschette +24 more
core +1 more source
FEBS Letters, EarlyView.Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson +7 more
wiley +1 more source
Existence of positive solutions for nonlinear dynamic systems with a parameter on a measure chain
Electronic Journal of Differential Equations, 2007 In this paper, we consider the following dynamic system with parameter on a measure chain $mathbb{T}$, $$displaylines{ u^{DeltaDelta}_{i}(t)+lambda h_{i}(t)f_{i}(u_{1}(sigma(t)), u_{2}(sigma(t)),dots ,u_{n}(sigma(t)))=0,quad tin[a,b], cr alpha u_{i}(a ...
Shuang-Hong Ma +2 more
doaj
Exact controllability of a second order integro-differential equation with a pressure term
Electronic Journal of Qualitative Theory of Differential Equations, 1998 This paper is concerned with the boundary exact controllability of the equation $$u''-\Delta u-\int_0^t g(t-\sigma)\Delta u(\sigma) d\sigma=-\nabla p$$ where $Q$ is a finite cilinder $\Omega\times]0,T[$, $\Omega$ is a bounded domain of $R^n$, $u=(u_1(x,t)
Marcelo Cavalcanti +3 more
doaj +1 more source
β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1
Molecular Oncology, EarlyView.Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero +8 more
wiley +1 more source