Results 31 to 40 of about 5,239,116 (369)

Exploring disparities and novel insights into metabolic and cardiovascular comorbidities among COVID-19 patients in Mexico

open access: yesFrontiers in Public Health, 2023
IntroductionThe COVID-19 pandemic, especially its early stages, sparked extensive discussions regarding the potential impact of metabolic and cardiovascular comorbidities on the severity and fatality of SARS-CoV-2 infection, yielding inconclusive ...
Jonathan Ariel López-Cuevas   +7 more
doaj   +1 more source

Complexity of computations [PDF]

open access: yesCommunications of the ACM, 1977
The framework for research in the theory of complexity of computations is described, emphasizing the interrelation between seemingly diverse problems and methods. Illustrative examples of practical and theoretical significance are given. Directions for new research are discussed.
openaire   +4 more sources

A Quantum Hamiltonian Identification Algorithm: Computational Complexity and Error Analysis [PDF]

open access: yesIEEE Transactions on Automatic Control, 2016
Quantum Hamiltonian identification (QHI) is important for characterizing the dynamics of quantum systems, calibrating quantum devices, and achieving precise quantum control.
Yuanlong Wang   +5 more
semanticscholar   +1 more source

Computational complexity of μ calculation [PDF]

open access: yes, 1993
The structured singular value μ measures the robustness of uncertain systems. Numerous researchers over the last decade have worked on developing efficient methods for computing μ.
Braatz, Richard P.   +3 more
core   +3 more sources

Yoyo trick on type‐II generalised Feistel networks

open access: yesIET Information Security, 2021
This work presents a structural attack against the type‐II generalised Feistel network (GFN) with secret internal functions. First, equivalent structures of the 7‐round type‐II GFN are provided, which helps reduce the first guess of the secret round ...
Tao Hou, Ting Cui
doaj   +1 more source

On the Complexity of Computing Treebreadth [PDF]

open access: yesAlgorithmica, 2016
During the last decade, metric properties of the bags of tree decompositions of graphs have been studied. Roughly, the length and the breadth of a tree decomposition are the maximum diameter and radius of its bags respectively. The treelength and the treebreadth of a graph are the minimum length and breadth of its tree decompositions respectively ...
Ducoffe, Guillaume   +2 more
openaire   +6 more sources

Computational Complexity in Electronic Structure [PDF]

open access: yes, 2012
In quantum chemistry, the price paid by all known efficient model chemistries is either the truncation of the Hilbert space or uncontrolled approximations.
Aaronson   +80 more
core   +3 more sources

Functional impact of multi-omic interactions in breast cancer subtypes

open access: yesFrontiers in Genetics, 2023
Multi-omic approaches are expected to deliver a broader molecular view of cancer. However, the promised mechanistic explanations have not quite settled yet. Here, we propose a theoretical and computational analysis framework to semi-automatically produce
Soledad Ochoa   +3 more
doaj   +1 more source

The Complexities of Nonperturbative Computations

open access: yesRussian Journal of Mathematical Physics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ali Shojaei-Fard, Ali Shojaei-Fard
openaire   +4 more sources

The computational complexity of PEPS [PDF]

open access: yes, 2006
We determine the computational power of preparing Projected Entangled Pair States (PEPS), as well as the complexity of classically simulating them, and generally the complexity of contracting tensor networks.
A. Y. Kitaev   +9 more
core   +3 more sources

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