Results 41 to 50 of about 1,282,521 (243)

Integrability, intertwiners and non-linear algebras in Calogero models

open access: yesJournal of High Energy Physics, 2021
For the rational quantum Calogero systems of type A 1⊕A 2, AD 3 and BC 3, we explicitly present complete sets of independent conserved charges and their nonlinear algebras.
Francisca Carrillo-Morales   +2 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Non-invertible symmetries of two-dimensional non-linear sigma models

open access: yesSciPost Physics
Global symmetries can be generalised to transformations generated by topological operators, including cases in which the topological operator does not have an inverse.
Guillermo Arias-Tamargo, Chris Hull, Maxwell L. Velásquez Cotini Hutt
doaj   +1 more source

Learning linear non-Gaussian graphical models with multidirected edges

open access: yesJournal of Causal Inference, 2021
In this article, we propose a new method to learn the underlying acyclic mixed graph of a linear non-Gaussian structural equation model with given observational data.
Liu Yiheng, Robeva Elina, Wang Huanqing
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Evaluation of linear and non-linear activation dynamics models for insect muscle.

open access: yesPLoS Computational Biology, 2019
In computational modelling of sensory-motor control, the dynamics of muscle contraction is an important determinant of movement timing and joint stiffness. This is particularly so in animals with many slow muscles, as is the case in insects-many of which
Nalin Harischandra   +5 more
doaj   +1 more source

A comparison between Least Squares and Artificial Neural Networks Approaches for Linear and Non Linear Models with Application [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2012
في هذا البحث تم استخدام أسلوب الشبكات العصبية الاصطناعية لتقدير معلمات نموذج الانحدار الخطي المتعدد، إذ تم وضع خوارزمية لهذا الغرض كما تم توضيح آلية عمل الشبكات العصبية في النماذج غير الخطية ، ولغرض اختبار كفاءة هذا الأسلوب في التقدير تمت مقارنته مع احد ...
doaj   +1 more source

Analysis of parametric biological models with non-linear dynamics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2012
In this paper we present recent results on parametric analysis of biological models. The underlying method is based on the algorithms for computing trajectory sets of hybrid systems with polynomial dynamics. The method is then applied to two case studies
Thao Dang, Romain Testylier
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

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