Results 21 to 30 of about 377,515 (281)

QN Optimization with Hessian Sample

open access: yes, 2022
This article explores how to effectively incorporate curvature information generated using SIMD-parallel forward-mode Algorithmic Differentiation (AD) into unconstrained Quasi-Newton (QN) minimization of a smooth objective function, $f$. Specifically, forward-mode AD can be used to generate block Hessian samples $Y=\nabla^2 f(x)\,S$ whenever the ...
Azzam, Joy   +3 more
openaire   +2 more sources

Ruled real hypersurfaces in the complex hyperbolic quadric

open access: yesDemonstratio Mathematica, 2023
In this article, we introduce a new family of real hypersurfaces in the complex hyperbolic quadric Qn∗=SO2,no∕SO2SOn{{Q}^{n}}^{\ast }=S{O}_{2,n}^{o}/S{O}_{2}S{O}_{n}, namely, the ruled real hypersurfaces foliated by complex hypersurfaces.
Lee Hyunjin, Suh Young Jin, Woo Changhwa
doaj   +1 more source

Approximation by q-Bernstein Polynomials in the Case q→1+

open access: yesAbstract and Applied Analysis, 2014
Let Bn,q(f;x), q∈(0,∞) be the q-Bernstein polynomials of a function f∈C[0,1]. It has been known that, in general, the sequence Bn,qn(f) with qn→1+ is not an approximating sequence for f∈C[0,1], in contrast to the standard case qn→1-.
Xuezhi Wu
doaj   +1 more source

Atorvastatin as a potential anti-malarial drug: in vitro synergy in combinational therapy with quinine against Plasmodium falciparum

open access: yesMalaria Journal, 2010
Background Quinine (QN) remains the first line anti-malarial drug for the treatment of complicated malaria in Europe and Africa. The emergence of QN resistance has been documented.
Pradines Bruno   +9 more
doaj   +1 more source

Bad Communities with High Modularity [PDF]

open access: yes, 2013
In this paper we discuss some problematic aspects of Newman's modularity function QN. Given a graph G, the modularity of G can be written as QN = Qf -Q0, where Qf is the intracluster edge fraction of G and Q0 is the expected intracluster edge fraction of
Kehagias, Athanasios   +1 more
core   +2 more sources

Transcriptomic and proteomic analyses of genetic factors influencing adductor muscle coloration in QN Orange scallops

open access: yesBMC Genomics, 2019
Color polymorphism, a high-valued trait, is frequently observed in molluscan shellfish. The QN Orange scallop, a new scallop strain successively selected from the interspecific hybrids of the bay scallop (Argopecten irradians irradians) and the Peruvian ...
Junlin Song, Chunde Wang
semanticscholar   +1 more source

The Kirchhoff Index of Hypercubes and Related Complex Networks

open access: yesDiscrete Dynamics in Nature and Society, 2013
The resistance distance between any two vertices of G is defined as the network effective resistance between them if each edge of G is replaced by a unit resistor.
Jiabao Liu   +3 more
doaj   +1 more source

On the 2-absorbing ideals and zero divisor graph of equivalence classes op zero divisors [PDF]

open access: yesJournal of Hyperstructures, 2014
Let R be a commutative ring, I be a 2-absorbing ideal of R and let I = Q1 ∩ · · · ∩ Qn (n ≥ 2) with √Qi = Pi for i = 1, · · · , n, be a minimal primary decomposition of I. Let ΓE(R/I) denote the graph of equivalence classes of zero divisors of R/I. It is
Sh. Payrovi, S. Babaei
doaj   +1 more source

Identification of Vietnamese Flea Species and Their Associated Microorganisms Using Morphological, Molecular, and Protein Profiling

open access: yesMicroorganisms, 2023
Fleas are obligatory blood-sucking ectoparasites of medical and veterinary importance. The identification of fleas and associated flea-borne microorganisms, therefore, plays an important role in controlling and managing these vectors.
Ly Na Huynh   +6 more
doaj   +1 more source

Packing the Hypercube

open access: yesDiscussiones Mathematicae Graph Theory, 2014
Let G be a graph that is a subgraph of some n-dimensional hypercube Qn. For sufficiently large n, Stout [20] proved that it is possible to pack vertex- disjoint copies of G in Qn so that any proportion r < 1 of the vertices of Qn are covered by the ...
Offner David
doaj   +1 more source

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