Results 91 to 100 of about 175,966,960 (244)

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Solutions Of The System Of Maximum Difference Equations

open access: yesMANAS: Journal of Engineering, 2014
The behaviour of the solutions of the following system of difference equations is examined.
Dağıstan Şimşek, Ahmet Doğan
doaj  

On a system of difference equations of third order solved in closed form

open access: yesJournal of Innovative Applied Mathematics and Computational Sciences, 2021
In this work, we show that the system of difference equations xn+1=(ayn-2xn-1yn+bxn-1yn-2+cyn-2+d)/(yn-2xn-1yn), yn+1=(axn-2yn-1xn+byn-1xn-2+cxn-2+d)/(xn-2yn-1xn), where n belongs to the set of positive integer numbers, x-2, x-1, x0, y-2, y-1 and y0 are ...
Youssouf AKROUR   +2 more
doaj  

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

On a multidimensional close-to-cyclic system of difference equations

open access: yesMiskolc Mathematical Notes
This paper investigates the solvability and dynamic properties of the following multidimensional close-to-cyclic system of nonlinear difference equations yn+1 (i)=aiyn (i+1) (y n−k (i+1))pi+1+b i (yn−k+1 (i))pi;n∈ℕ0,yn (i+k)=yn (i),pi+k=pi,ai+k=ai,bi+
Yacine Halim   +2 more
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Limiting Values and Functional and Difference Equations

open access: yes, 2020
Boundary behavior of a given important function or its limit values are essential in the whole spectrum of mathematics and science. We consider some tractable cases of limit values in which either a difference of two ingredients or a difference equation ...
Praveen Agarwal   +2 more
core   +1 more source

Solutions of the System of Maximum Difference Equations

open access: yesMANAS: Journal of Engineering, 2016
The behaviour and periodicity of the solutions of the following system of difference equations is ...
D. Şimşek, M. Eröz, B. Öğul
doaj  

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

On a System of Two High-Order Nonlinear Difference Equations

open access: yesAdvances in Mathematical Physics, 2014
This paper is concerned with dynamics of the solution to the system of two high-order nonlinear difference equations xn+1=xn-k/(q+∏i=0kyn-i), yn+1=yn-k/(p+∏i=0kxn-i), k∈N+, n=0,1,…, where p,q∈(0,∞), x-i∈(0,∞), y-i∈(0,∞) and i=0,1,…,k.
Qianhong Zhang, Wenzhuan Zhang
doaj   +1 more source

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