Results 91 to 100 of about 220,874 (298)

Best rank k approximation for binary forms [PDF]

, 2017
Política de acceso abierto tomada de: https://www.sherpa.ac.uk/id/publication/28186In the tensor space SymdR2 of binary forms we study the best rank k approximation problem.
Alicia Tocino, Ottaviani, Giorgio, Giorgio Ottaviani, Tocino Sanchez, Alicia, Tocino-Sánchez, Alicia   +4 more
core   +1 more source

On a problem of simultaneous best approximation

Journal of Numerical Analysis and Approximation Theory, 1974
Not available.
G. Cimoca
doaj   +2 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Best Approximation and Best Co-Approximation in Normed Space

, 2009
In this thesis, the concept of best approximation and best co-approximation in normed linear spaces is studied. The concepts of ε-best approximation and ε-best co-approximation and ε-orthogonality are introduced and the relations between these concepts are obtained. Also the maps which preserve approximation are discussed. Some results are studied. For
openaire   +1 more source

Discontinuity of Best Harmonic Approximants

Journal of Approximation Theory, 1999
Let \(D\) be a (Jordan) domain in \(\mathbb{R}^2\) and \(f\) some real-valued and bounded continuous function on \(\overline D\). Then \(f\) has some best harmonic approximant \(h:D\in\mathbb{R}\) in the sense of uniform approximation on \(D\), but it is known that \(h\) must not have a continuous extension on \(\overline D\).
Legg, D., Pan, Y.
openaire   +2 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

Topics in Multivariate Approximation

, 1987
Topics in Multivariate Approximation contains the proceedings of an international workshop on multivariate approximation held at the University of Chile in Santiago, Chile, on December 15-19, 1986.
Schumaker, L. L., Utreras, F.I., Chui, C. K.   +2 more
core  

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

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
core