Results 91 to 100 of about 25,417,473 (341)

Krylov Implicit Integration Factor Methods for Semilinear Fourth-Order Equations

open access: yesMathematics, 2017
Implicit integration factor (IIF) methods were developed for solving time-dependent stiff partial differential equations (PDEs) in literature. In [Jiang and Zhang, Journal of Computational Physics, 253 (2013) 368–388], IIF methods are designed to ...
Michael Machen, Yong-Tao Zhang
doaj   +1 more source

Quadrature Methods for Stiff Ordinary Differential Systems [PDF]

open access: yesMathematics of Computation, 1981
The quadrature methods are based upon a substitution of an explicit A -stable first approximation into a generalized convolution formula. They are A -stable, explicit, and of arbitrarily high order. The generalized convolution formula is derived and its
openaire   +2 more sources

Stability regions for one-step multiderivative methods

open access: yes, 1981
Stability regions are plotted for certain members of a family of one-step multiderivative predictor-corrector methods developed by the authors in an earlier paper.
Khaliq, AQM, Twizell, EH
core  

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

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

Magnus series expansion method for solving nonhomogeneous stiff systems of ordinary differential equations

open access: yesKuwait Journal of Science, 2015
In this paper, Magnus Series Expansion Method which is based on Lie Groups and Lie algebras is proposed with different orders to solve nonhomogeneous stiff systems of ordinary differential equations.
Mehmet T. Atay   +2 more
doaj  

The acquisition of new members by groups : the role of selection, socialisation, and sanctions

open access: yes, 2005
Human society is built on a foundation of collaborative endeavours which range from small social groups to multi-national organisations to governments. In order to sustain these systems, many groups will often be required to recruit new members; either ...
Stiff, Christopher
core  

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

A ninth-order first derivative method for numerical integration

open access: yesJournal of Nigerian Society of Physical Sciences
In this paper, we present a ninth–order block hybrid method for the numerical solution of stiff and non–stiff systems of first–order differential equations.
Richard Akinola   +3 more
doaj   +1 more source

Robust optimization of stiff delayed systems

open access: yes, 2021
We apply a robust steady state optimization method for stiff delay differential equations to the economic optimization of a fluidized catalytic cracking unit. Stiff systems of differential equations appear in this case due to the different time scales in
Otten‑Weinschenker, Jonas (Dr.-Ing.)   +1 more
core  

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