Results 41 to 50 of about 853,118 (283)
Fourth-order gravity as the inflationary model revisited
, 2010 We revisit the old (fourth-order or quadratically generated) gravity model of Starobinsky in four space-time dimensions, and derive the (inflaton) scalar potential in the equivalent scalar-tensor gravity model via a Legendre-Weyl transform.
Barvinsky A. O. +7 more
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NKCC1: A key regulator of glioblastoma progression
Molecular Oncology, EarlyView.Glioblastoma (GBM) progression is driven by disrupted chloride cotransporter homeostasis. NKCC1 is highly expressed in stem‐like, astrocytic, and progenitor cells, correlating with earlier recurrence, while overall survival remains unaffected. NKCC1 serves as a prognostic marker and potential therapeutic target, linking chloride transporter imbalance ...
Anja Thomsen +5 more
wiley +1 more source
Functional Model of Dissipative Fourth Order Differential Operators
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013 In this paper, maximal dissipative fourth order operators with equal deficiency indices are investigated. We construct a self adjoint dilation of such operators.
Tuna Hüseyin
doaj +1 more source
Nontrivial Solutions of a Class of Fourth-Order Elliptic Problems with Potentials
Fractal and Fractional, 2022 This paper deals with a fourth-order elliptic equation with Dirichlet boundary conditions. Using a variant form of the mountain pass theorem, we prove the existence of nontrivial solutions to this problem.
Jiabin Zuo +2 more
doaj +1 more source
Molecular Oncology, EarlyView.Both cg12821679MAPRE3 methylation and MAPRE3 expression are significantly associated with overall survival (OS) of non‐small cell lung cancer. Meanwhile, MAPRE3 expression significantly modified the effect of smoking cessation on OS. Smoking cessation benefits OS merely for patients with high MAPRE3 expression.
Chao Chen +14 more
wiley +1 more source
Institutions as Objects in Fourth Order Design
She Ji: The Journal of Design, Economics and InnovationFourth order design, which involves systems and environments, is a frequently misunderstood area of design. The concept of institution offers a way to clarify and enrich fourth order design in both theory and practice.
Kipum Lee
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Electronic Journal of Qualitative Theory of Differential Equations, 2023 In this paper, we consider the well-posedness and asymptotic behavior of Dirichlet initial boundary value problem for a fourth-order equation with strong damping and logarithmic nonlinearity. We establish the local solvability by the technique of cut-off
Xiulan Wu, Yaxin Zhao, Xiaoxin Yang
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A Fourth-order Finite Difference Solver For Poisson's Equation Via The Half-sweep Arithmetic Mean (Hsam) Method [PDF]
, 2005 The main purpose ofthis paper is to validate the efficiency and accuracyof the Half-Sweep Arithmetic Mean (HSAM) method using the fourth orderfinite difference approximation equation to solve one-dimensionalPoisson's equation. In this paper, we formulate
al, J. S. (J)
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Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity
FEBS Open Bio, EarlyView.Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz +9 more
wiley +1 more source
Fourth order gravity and experimental constraints on Eddington parameters
, 2006 PPN-limit of higher order theories of gravity represents a still controversial matter of debate and no definitive answer has been provided, up to now, about this issue. By exploiting the analogy between scalar-tensor and fourth-order theories of gravity,
Capozziello, S., Stabile, A., Troisi, A.
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