Results 81 to 90 of about 4,152,384 (323)

ALGEBRAIC NONLINEARITY IN VOLTERRA-HAMMERSTEIN EQUATIONS [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1999
Here a posteriori error estimate for the numerical solution of nonlinear Voltena- Hammerstein equations is given. We present an error upper bound for nonlinear Voltena-Hammastein integral equations, in which the form of nonlinearity is algebraic and ...
doaj  

A Posteriori Error Estimates with Computable Upper Bound for the Nonconforming Rotated Q 1 Finite Element Approximation of the Eigenvalue Problems

open access: yes, 2014
This paper discusses the nonconforming rotated finite element computable upper bound a posteriori error estimate of the boundary value problem established by M.
Jie Liu, Tian Xia, Wei Jiang
semanticscholar   +1 more source

Upper Bounds on Asymptotic Variances of $M$-Estimators of Location

open access: yesThe Annals of Statistics, 1977
If $X_1, \cdots, X_n$ is a random sample from $F(x - \theta)$, where $F$ is an unknown member of a specified class $\mathscr{F}$ of approximately normal symmetric distributions, then an $M$-estimator of the unknown location parameter $\theta$ is obtained by solving the equation $\sum^n_{i=1} \psi(X_i - \hat{\theta}_n) = 0$ for $\hat{\theta}_n$.
openaire   +3 more sources

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

open access: yesMolecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi   +6 more
wiley   +1 more source

Power law in a bounded range: Estimating the lower and upper bounds from sample data

open access: yesThe Journal of Chemical Physics, 2023
Power law distributions are widely observed in chemical physics, geophysics, biology, and beyond. The independent variable x of these distributions has an obligatory lower bound and, in many cases, also an upper bound. Estimating these bounds from sample data is notoriously difficult, with a recent method involving O(N3) operations, where N denotes ...
openaire   +4 more sources

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

open access: yesMolecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

Rotational Failure Mechanism for Face Stability of Circular Shield Tunnels in Frictional Soils

open access: yesAdvances in Civil Engineering, 2019
Face stability analyses of shield-driven tunnels are often carried out to determine the required support pressure on the tunnel face. Although various three-dimensional mechanisms have been proposed for circular faces of tunnels in frictional and/or ...
Yuan Zhou   +4 more
doaj   +1 more source

SPHINX31 acts as a SRPK1 inhibitor targeting the ATR/DNA‐PKcs/CHK1 replicative checkpoint to inhibit cell growth in non‐small cell lung cancer

open access: yesMolecular Oncology, EarlyView.
The kinase SRPK1 directly interacts with the protein TOPBP1 and regulates the pre‐mRNA splicing of WIZ thereby contributing to the activation of the ATR/CHK1 replicative checkpoint in response to replicative stress. This allows cancer cells' genomic stability and survival.
Amani Shreim   +17 more
wiley   +1 more source

Upper Iowa University campus around the close of President Bissell's administration about 1899

open access: yes, 1899
oai:cdm17238.contentdm.oclc.org:p17238coll1/0Drawing of Upper Iowa University campus showing Science Hall and Business College [now the location of Colgrove-Walker Building]; Chapel [now Parker-Fox]; Observatory [no longer exists]; Main Building with a ...
Upper Iowa University
core   +1 more source

A Novel Method to Estimate the Reaching Time of the Super-Twisting Algorithm

open access: yesIEEE Transactions on Automatic Control, 2018
The super-twisting algorithm is a well-known technique in the field of sliding mode control or observation. In this contribution, an exact analytic expression for this algorithm's finite reaching time in the unperturbed case is derived.
Richard Seeber, M. Horn, L. Fridman
semanticscholar   +1 more source

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