Results 71 to 80 of about 1,812,100 (233)

Selfadjoint Singular Quasi-Differential Operators for First Order

open access: yesHittite Journal of Science and Engineering, 2019
I n this work, using the Calkin-Gorbachuk method firstly all selfadjoint extensions of the minimal operator generated by first order linear singular quasi-differential expression in the weighted Hilbert space of vector-functions on right semi-axis have ...
Pembe Ipek Al, Zameddin Ismailov
doaj   +1 more source

Lost in the Vaso‐Occlusion: A Patient's Abdominal Pain Returns With a Vengeance

open access: yes
Pediatric Blood &Cancer, EarlyView.
Dunia Hatabah   +5 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

On the solvability of a fourth order operator differential equations

open access: yesElectronic Journal of Differential Equations, 2007
We establish sufficient conditions for the solvability of a fourth order operator differential equation. These conditions are expressed in terms of operator coefficients.
Ahmed Nouar
doaj  

First Integrals of Differential Operators from SL(2,ℝ) Symmetries

open access: yesMathematics, 2020
The construction of first integrals for SL(2,R)-invariant nth-order ordinary differential equations is a non-trivial problem due to the nonsolvability of the underlying symmetry algebra sl(2,R).
Paola Morando   +2 more
doaj   +1 more source

Differential operator in seizure detection

open access: yesComputers in Biology and Medicine, 2012
15 pages, 3 figures, two tables. Submitted to Computers in Biology and Medicine (Elsevier)
openaire   +3 more sources

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Computing with Differential-difference Operators

open access: yesJournal of Symbolic Computation, 1999
The paper shows how Maple can be used to prove identities in the algebra generated be differential-difference operators (Dunkl operators), multiplication by coordinate functions and group translation, essentially in polynomial arithmetic. The proposed technique allows a conceptual proof of a complete orthogonal decomposition of the harmonic polynomials
openaire   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

qianyingcao/Laplace-Neural-Operator: Code and data for Laplace neural operator for solving differential equations

open access: yes
<p>This release gives the code and data for Laplace neural operator for solving differential equations.</p ...
qianyingcao
core   +1 more source

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