Results 61 to 70 of about 137,408 (266)

Descomposición en suma de cuadrados: teoría y aplicaciones en control

open access: yesIngeniería e Investigación, 2010
Las técnicas de descomposición en sumas de cuadrados (SOS) permiten emplear métodos numéricos para probar la positividad de funciones polinómicas multivariables resolviendo problemas de programación en semidefinida. Teniendo en cuenta que generalmente es
Andrés Pantoja   +2 more
doaj  

On Delay Independent Stabilization Analysis for a Class of Switched Large-Scale Time-Delay Systems

open access: yesAbstract and Applied Analysis, 2013
In view of the state-driven switching method, the sufficient stability conditions with delay independence will be derived for the switched large-scale time-delay systems.
Chi-Jo Wang, Juing-Shian Chiou
doaj   +1 more source

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

Synchronization Between Two Different Switched Chaotic Systems By Switching Control

open access: yesMATEC Web of Conferences, 2016
This paper is concerned with the synchronization problem of two different switched chaotic systems, considering the general case that the master-slave switched chaotic systems have uncertainties.
Du Li Ming   +3 more
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Fault Detection Filter Design and Optimization for Switched Systems with All Modes Unstable. [PDF]

open access: yesComput Intell Neurosci, 2022
Huang H   +5 more
europepmc   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

On Switched Hamiltonan Systems

open access: yes, 2002
In this paper we study the well-posedness and stability of a class of switched linear passive systems. Instrumental in our approach is the result, also of interest in its own right, that any linear passive input-state-output system with strictly positive storage function can be written as a port-Hamiltonian system.
Gerritsen, K.M.   +2 more
openaire   +2 more sources

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