Results 11 to 20 of about 17,713 (284)
Protein Dimerization Generates Bistability in Positive Feedback Loops [PDF]
Bistability plays an important role in cellular memory and cell-fate determination. A positive feedback loop can generate bistability if it contains ultrasensitive molecular reactions.
Chieh Hsu +3 more
doaj +2 more sources
Terahertz optical bistability of graphene-coated cylindrical core–shell nanoparticles
In this study, we investigate the optical bistability of graphene-coated nanoparticles with cylindrical core–shell structure at terahertz frequency, because graphene displays optical bistability and multistability in a broad range of incident optical ...
Tayebeh Naseri +3 more
doaj +2 more sources
Monomeric bistability and the role of autoloops in gene regulation.
Genetic toggle switches are widespread in gene regulatory networks (GRN). Bistability, namely the ability to choose among two different stable states, is an essential feature of switching and memory devices.
Stefanie Widder +2 more
doaj +2 more sources
A switchable donor-acceptor pretzelane composed of a crown ether containing tetrathiafulvalene and 1,5-dihydroxynaphthalene recognition units and a covalently tethered cyclobis(paraquat-p-phenylene) ring exhibits unidirectional motion on both oxidation (forwards) and reduction (backwards).
Zhao, YL Zhao, Yan-Li +2 more
openaire +4 more sources
SummaryGene expression in bacteria is traditionally studied from the average behaviour of cells in a population, which has led to the assumption that under a particular set of conditions all cells express genes in an approximately uniform manner.
David, Dubnau, Richard, Losick
openaire +2 more sources
Bistable nerve conduction [PDF]
Abstract The essence of the nerve system is to transmit information from and to different parts of the body in response to environmental changes. Here we show that a bistable conduction behavior can occur in the nerve system, which exhibits stimulus-dependent fast and slow conduction waves.
Zhang, Zhaoyang, Qu, Zhilin
openaire +4 more sources
HYSTERESIS OF PLANAR DOUBLE SLOT IMPINGING AIR JETS [PDF]
In present study, the bistability and hysteresis of the non-isothermal flow behind two slot nozzle is numerically investigated. Theoretical review of bistability of isothermal stagnation flow is presented and both flow field patterns that exist in the ...
Tisovský Tomáš, Vít Tomáš
doaj +2 more sources
Split histidine kinases enable ultrasensitivity and bistability in two-component signaling networks [PDF]
Bacteria sense and respond to their environment through signaling cascades generally referred to as two-component signaling networks. These networks comprise histidine kinases and their cognate response regulators.
Steven L Porter +16 more
core +1 more source
We theoretically investigate the optical bistability in the metal nanoparticles-graphene nanodisks-quantum dots hybrid plasmonic system in the infrared regime of the electromagnetic radiation. The quantum dot is considered to be a three-level atomic-like
Mariam M. Tohari
doaj +1 more source
Relatively slow stochastic gene-state switching in the presence of positive feedback significantly broadens the region of bimodality through stabilizing the uninduced phenotypic state. [PDF]
Within an isogenic population, even in the same extracellular environment, individual cells can exhibit various phenotypic states. The exact role of stochastic gene-state switching regulating the transition among these phenotypic states in a single cell ...
Hao Ge +3 more
doaj +1 more source

