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Bifurcation and chaos in a discrete activator-inhibitor system
<abstract><p>In this paper, we explore local dynamic characteristics, bifurcations and control in the discrete activator-inhibitor system. More specifically, it is proved that discrete-time activator-inhibitor system has an interior equilibrium solution.
A. Q. Khan +5 more
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Cardiovascular risk associated with interactions among polymorphisms in genes from the renin-angiotensin, bradykinin, and fibrinolytic systems. [PDF]
Vascular fibrinolytic balance is maintained primarily by interplay of tissue plasminogen activator (t-PA) and plasminogen activator inhibitor type 1 (PAI-1).
John P Bentley +6 more
doaj +1 more source
Emerging evidence suggests that the intracellular clearance system plays a vital role in maintaining homeostasis and in regulating oxidative stress and inflammation in retinal pigment epithelium (RPE) cells. Dysfunctional proteasomes and autophagy in RPE
Iswariyaraja Sridevi Gurubaran +3 more
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The occurrence of prime numbers revisited
Based on an arithmetical and autocatalytic approach, the authors propose a solution for the occurrence of prime numbers. Exact arithmetical calculations are provided for: the closest prime to any given positive integer (or any number of bigger or smaller
Ernesto Tapia Moore, José Tapia Yañez
doaj +4 more sources
Summary: TUC338 is an ultraconserved long non-coding RNA that contributes to transformed cell growth in hepatocellular carcinoma (HCC). Genomic regions of TUC338 occupancy were enriched in unique or known binding motifs homologous to the tumor ...
Hui-Ju Wen +5 more
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Tyrosine kinase 2 (TYK2) is a member of the Janus kinase/signal transducer and activator of transcription pathway, which is central in cytokine signaling.
Katharina Woess +19 more
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A feedback quenched oscillator produces turing patterning with one diffuser. [PDF]
Efforts to engineer synthetic gene networks that spontaneously produce patterning in multicellular ensembles have focused on Turing's original model and the "activator-inhibitor" models of Meinhardt and Gierer. Systems based on this model are notoriously
Justin Hsia +4 more
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A stability index for travelling waves in activator-inhibitor systems
AbstractWe consider the stability of nonlinear travelling waves in a class of activator-inhibitor systems. The eigenvalue equation arising from linearizing about the wave is seen to preserve the manifold of Lagrangian planes for a nonstandard symplectic form. This allows us to define a Maslov index for the wave corresponding to the spatial evolution of
Cornwell, Paul +1 more
openaire +3 more sources
ObjectiveThis study investigated the diagnostic performance of thrombin–antithrombin complex (TAT), plasmin–α2 plasmin inhibitor complex (PIC), tissue plasminogen activator–plasminogen activator inhibitor complex (t-PAIC), and thrombomodulin (TM) in ...
Xiaoxia Zhao +6 more
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Roles of calcium/calmodulin-dependent kinase II in long-term memory formation in crickets. [PDF]
Ca(2+)/calmodulin (CaM)-dependent protein kinase II (CaMKII) is a key molecule in many systems of learning and memory in vertebrates, but roles of CaMKII in invertebrates have not been characterized in detail.
Makoto Mizunami +4 more
doaj +1 more source

