Results 81 to 90 of about 564,115 (361)

A Quantum Framework for Protein Binding‐Site Structure Prediction on Utility‐Level Quantum Processors

open access: yesAdvanced Science, EarlyView.
This study presents a hybrid quantum‐classical framework for accurate prediction of protein structures on utility‐level quantum processors. We evaluate the practical application of the Variational Quantum Eigen‐solver (VQE) in protein structure prediction and demonstrate its superiority over state‐of‐the‐art deep learning methods in molecular docking ...
Yuqi Zhang   +10 more
wiley   +1 more source

Symmetric multisplitting of a symmetric positive definite matrix

open access: yesLinear Algebra and its Applications, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cao, Zhi-Hao, Liu, Zhong-Yun
openaire   +1 more source

Geometrical inverse preconditioning for symmetric positive definite matrices

open access: yes, 2015
We focus on inverse preconditioners based on minimizing $F(X) = 1-\cos(XA,I)$, where $XA$ is the preconditioned matrix and $A$ is symmetric and positive definite.
Chehab, Jean-Paul, Raydan, Marcos
core   +3 more sources

A Closed‐Loop Hybrid Discovery System of Type I Photosensitizers for Hypoxic Tumor Therapy

open access: yesAdvanced Science, EarlyView.
The work developed a closed‐loop hybrid discovery system to rationally design and predict high‐performance Type I PSs for hypoxic tumor therapy. 664 Potential candidates are identified from a dataset through a support vector machine (SVM) classification model, and two candidates are experimentally verified as Type I PSs, which highlighted the potential
Xia Ling   +9 more
wiley   +1 more source

Manipulating Spin States by Metal Axial Coordination of Active Sites for Generating Valuable CH4 in CO2 Reduction

open access: yesAdvanced Science, EarlyView.
By encapsulating Ni atoms into Mn zeolitic imidazolate framework‐8, the spin‐state transition of Mn 3d3 from low‐spin to high‐spin was facilitated upon Ni axial coordination via Mn 3d orbital splitting. This facilitates the electronic donation and induces the closing of Mn d‐band center toward Fermi level to strengthen *CO adsorption, thereby ...
Min Zhang   +5 more
wiley   +1 more source

An Inversion-Free Method for Finding Positive Definite Solution of a Rational Matrix Equation

open access: yesThe Scientific World Journal, 2014
A new iterative scheme has been constructed for finding minimal solution of a rational matrix equation of the form X+A*X-1A=I. The new method is inversion-free per computing step.
Fazlollah Soleymani   +4 more
doaj   +1 more source

Experimental Joint Estimation of Phase and Phase Diffusion Via Deterministic Bell Measurements

open access: yesAdvanced Science, EarlyView.
This work employs Bell measurement, a form of entangling measurement, to estimate both the phase and its fluctuations in an optical interferometer. By incorporating a novel quantum effect at the measurement stage, the proposed method achieves the ultimate precision limit and demonstrates the significant potential of entangling measurements in multi ...
Ben Wang   +4 more
wiley   +1 more source

Trace inequalities for positive definite matrix power products

open access: yesLinear Algebra and its Applications, 1990
Let A and B be Hermitian positive semidefinite \(N\times N\) matrices and let the eigenvalues of A and B be \(a_ 1,...,a_ N\) and \(b_ 1,...,b_ N\), respectively, with \(0\leq a_ 1\leq a_ 2\leq...\leq a_ N\) and \(0\leq b_ 1\leq b_ 2\leq...\leq b_ N\). The authors give an elementary proof for the inequalities: \[ \sum^{N}_{i=1}a^ n_ i b^ n_{N-i}\leq tr(
Bushell, P.J., Trustrum, G.B.
openaire   +2 more sources

Positive Semidefiniteness and Positive Definiteness of a Linear Parametric Interval Matrix

open access: yes, 2017
We consider a symmetric matrix, the entries of which depend linearly on some parameters. The domains of the parameters are compact real intervals. We investigate the problem of checking whether for each (or some) setting of the parameters, the matrix is ...
A Neumaier   +30 more
core   +1 more source

Liver Stiffness Rises Early in MASLD and Drives Inflammation, Lipid Dysmetabolism, and Fibrosis via Piezo1–YAP Mechanotransduction

open access: yesAdvanced Science, EarlyView.
Progressive stiffening of the hepatic extracellular matrix and free fatty acid overload activate the mechanosensor Piezo1 in steatotic hepatocytes, inducing calcium influx and nuclear translocation of Yes‐associated protein. YAP‐dependent nuclear signaling further drives inflammatory and fibrotic gene programs, lipid metabolic reprogramming, and ...
Juan Ma   +15 more
wiley   +1 more source

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