Results 41 to 50 of about 757,721 (338)

The Complexity of Rooted Phylogeny Problems

open access: yes, 2010
Several computational problems in phylogenetic reconstruction can be formulated as restrictions of the following general problem: given a formula in conjunctive normal form where the literals are rooted triples, is there a rooted binary tree that ...
Bodirsky, Manuel, Mueller, Jens K
core   +2 more sources

Stimulator of interferon genes agonist augmented antitumor immunity of osimertinib in Egfr‐mutated lung cancer

open access: yesMolecular Oncology, EarlyView.
Combining osimertinib with the STING agonist ADU‐S100 activates innate and adaptive immunity to overcome the non‐inflamed microenvironment of Egfr‐mutant lung cancer. This combination increases NK and CD8+ T‐cell infiltration, associated with activation of the STING‐IRF3 pathway and local immunogenic cell death.
Jun Nishimura   +19 more
wiley   +1 more source

Airborne Radar Super-Resolution Imaging Based on Fast Total Variation Method

open access: yesRemote Sensing, 2021
Total variation (TV) is an effective super-resolution method to improve the azimuth resolution and preserve the contour information of the target in airborne radar imaging.
Qiping Zhang   +4 more
doaj   +1 more source

On computing Gauss-Kronrod quadrature formulae [PDF]

open access: yesMathematics of Computation, 1986
We discuss the use of Newton’s method for computing Gauss-Kronrod quadrature formulae from modified moments. The underlying nonlinear maps are analyzed from the point of view of numerical condition. A method is indicated of computing the polynomial whose zeros are the Kronrod nodes.
CALIO', FRANCA   +2 more
openaire   +2 more sources

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

open access: yesFEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman   +4 more
wiley   +1 more source

Investigation of quantum transport by means of O(N) real-space methods

open access: yes, 1998
Quantum transport for different systems is investigated by developing the Kubo formula on a basis of orthogonal polynomials. Results on quantum Hall systems are presented with particular attention to metal insulator transitions and new universalities ...
A. MacKinnon   +49 more
core   +2 more sources

Computing the Maximum using (min, +) Formulas.

open access: yesElectron. Colloquium Comput. Complex., 2017
We study computation by formulas over (min,+). We consider the computation of max{x_1,...,x_n} over N as a difference of (min,+) formulas, and show that size n + n \log n is sufficient and necessary. Our proof also shows that any (min,+) formula computing the minimum of all sums of n-1 out of n variables must have n \log n leaves; this too is tight ...
Meena Mahajan   +2 more
openaire   +4 more sources

The formula-controlled logical computer “Stanislaus” [PDF]

open access: yesMathematics of Computation, 1960
The evaluation of a formula of propositional calculus is considerably simplified if this formula is written in the parenthesis-free notation of the Warsaw School, [1]. The Warsaw notation may be formulated in the following way: There are symbols for operations, e.g.: N for negation; K for conjunction; A for disjunction; E for equivalence; C for ...
openaire   +1 more source

Formulas for series computations [PDF]

open access: yesApplicable Algebra in Engineering, Communication and Computing, 1992
Let \(K\) be a field of characteristic 0, \(\overline K\) an algebraic closure of \(K\) and \(K(x)\) the rational function field in one variable \(x\) over \(K\). The paper describes an algorithm that computes for an element \(f\) of \(K(x)\) for each \(n\in\mathbb N\) and \(m\in\{1,\dots,n\}\) a univariate polynomial \(B_{nm}\) over \(K\) whose roots ...
openaire   +1 more source

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

open access: yesFEBS 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   +7 more
wiley   +1 more source

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