Results 61 to 70 of about 9,593 (216)
Quantitative estimates for L approximation with positive linear operators
Journal of Approximation Theory, 1983 AbstractQuantitative estimates for approximation with positive linear operators are derived. The results are in the same vein as recent results of Berens and DeVore. Two examples are provided.
Swetits, J. J., Wood, B.
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FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
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The Kantorovich form of some extensions for the Szász-Mirakjan operators
Journal of Numerical Analysis and Approximation Theory, 2010 Recently, C. Mortici defined a class of linear and positive operators depending on a certain function \(\varphi\). These operators generalize the well known Szász-Mirakjan operators.
Dan Bărbosu +2 more
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FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
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Approximation of bounded functions by positive linear operators
Modern Mathematical MethodsA general family of positive linear operators associated with a power expansion is studied. An upper estimate of the rate of convergence is obtained for bounded continuous functions in \([0,\infty)\) that has limit when \(x\to \infty\).
Jorge Bustamante
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Abstract and Applied Analysis, 2014 This paper is concerned with approximation on variable Lρp(·) spaces associated with a general exponent function p and a general bounded Borel measure ρ on an open subset Ω of Rd. We mainly consider approximation by Bernstein type linear operators. Under
Bing-Zheng Li, Ding-Xuan Zhou
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Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis
FEBS Open Bio, EarlyView.Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho +4 more
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Korovkin-type convergence results for multivariate Shepard formulae
Journal of Numerical Analysis and Approximation Theory, 2009 We present a new convergence proof for classic multivariate Shepard formulae within the context of Korovkin-type convergence results for positive operators on spaces of continuous real valued functions.
Oliver Nowak
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FEBS Open Bio, EarlyView.A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo +7 more
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On some remarkable positive polynomial operators of approximation.
Journal of Numerical Analysis and Approximation Theory, 1999 Summary: In this paper we investigate new approximation properties of a Bernstein type operator, depending on two real parameters \(c\) and \(d\) \((0\leq c\leq d)\), introduced by the first author in [Stud. Univ. Babeş-Bolyai, Ser. Math.-Phys. 14, No. 2, 31--44 (1969; Zbl 0205.36602)].
D. D. Stancu, A. Vernescu
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