Results 61 to 70 of about 40,876 (272)

Best Copositive Approximation

, 1993
A theory of best copositive approximation including a "zero in the convex hull" characterization, alternation theorem, and strong uniqueness theorem is developed for a general n-dimensional Chebyshev subspace in C[a, b].
Zhong, J.
core   +1 more source

DNA methylation and expression of MAPRE3 affect overall survival of early‐stage non‐small cell lung cancer patients

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, Jiancheng Cheng, Ruili Hou, Xiaoyuan Zheng, Li Su, Maria Moksnes Bjaanæs, Anna Karlsson, Maria Planck, Johan Staaf, Åslaug Helland, Manel Esteller, David C. Christiani, Feng Chen, Xiaofei Cao, Ruyang Zhang   +14 more
wiley   +1 more source

Characterization of best approximations by sums of exponentials

Journal of Approximation Theory, 1973
AbstractAn exponential sum y can be specified by giving the coefficients b, c of the corresponding initial value problem (Dn + c1Dn − 1 + ··· + cn)y = 0, Dj − 1y(0) = bj, j = 1, 2,…, n. We discuss some of the topological properties of this parametric form, noting that the associated tangential manifold does not suffer a “loss of dimension” when the ...
openaire   +2 more sources

Circulating tumor cell viability during and after radiotherapy mirrors treatment response in cancer patients

Molecular Oncology, EarlyView.
Radiotherapy (RT) response depends on the DNA repair capacity of tumor and host cells. We show that circulating tumor cell (CTC) counts and apoptosis rates before and after RT predict treatment response and outcome, which can be accessed via easily accessible liquid biopsy approaches. Created in BioRender. Wikman, H.
Yvonne Goy, Jana Löptien, Cornelia Coith, Afroditi Nanou, Katharina Hintelmann, Pinnschmidt Hans, Cordula Petersen, Klaus Pantel, Sabine Riethdorf, Kerstin Borgmann, Harriet Wikman   +10 more
wiley   +1 more source

Characterization of the best integral approximant of multivariable functions

Researches in Mathematics, 2021
We obtain the criterion of the best approximant for multivariable functions in $L_{p_1,\ldots p_n}$ space.
openaire   +2 more sources

Characterization of Best Approximants from Convex Subsets and Level Sets in Normed Linear Spaces

, 1999
Some new characterization of best approximants from convex subsets and level sets of convex mappings in normed linear spaces in terms of norm derivatives and sub-orthogonality in Birkhoff's sense are ...
Dragomir, Sever S
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Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source

Explaining the performance impact of opportunity costs approximation in integrated demand management and vehicle routing

EURO Journal on Transportation and Logistics
The widespread adoption of digital distribution channels both enables and forces more and more logistics service providers to manage booking processes actively to maintain competitiveness.
David Fleckenstein, Robert Klein, Vienna Klein, Claudius Steinhardt   +3 more
doaj   +1 more source

Computer modeling and simulation for undersaturated primary drive recovery mechanism

Advances in Mechanical Engineering, 2019
The focus of this article is to test the capability of a three-dimensional undersaturated numerical reservoir simulator developed for prediction of actual field performance cases.
Patricia Semwaah Gyan, Congjiao Xie, Eric Thompson Brantson, Samuel Atuahene   +3 more
doaj   +1 more source

On the best L1(X, μ)- approximants

, 2006
Let X be a complex Banach space and let M be subspace of X. In this paper we characterize the best approximant to an operator A 2 X from M and we prove the uniqueness, in terms of a new concept of derivative .
Mecheri, Salah
core