Results 21 to 30 of about 41,666 (241)
Chemical Communications, 2009 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
Tunable Optical Bistability, Tristability and Multistability in Arrays of Graphene
Applied Sciences, 2020 The optical bistability, tristability and multistability are explored in arrays of graphene. The arrays are periodically arranged spatially by single sheets of graphene.
Xiuju Zhao +5 more
doaj +1 more source
Bistability phenomena in one-dimensional polariton wires [PDF]
, 2013 We investigate the phenomena of bistability and domain wall propagation in polaritonic systems with dissipation provided by the interaction with incoherent phonon bath.
Magnusson, E. B. +2 more
core +2 more sources
Protein Dimerization Generates Bistability in Positive Feedback Loops
Cell Reports, 2016 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 +1 more source
HYSTERESIS OF PLANAR DOUBLE SLOT IMPINGING AIR JETS [PDF]
EPJ Web of Conferences, 2018 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
Tạp chí Khoa học Đại học Đà Lạt, 2021 We investigate the behavior of optical bistability in a degenerate two-level atomic medium using an external magnetic field to separate the lower level into two distinct levels that both connect to an upper level by the probe and coupling laser fields ...
Le Thi Minh Phuong +6 more
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Nanomaterials, 2020 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]
PLoS Computational Biology, 2018 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
Physical Review Letters, 2000 We extend elasticity theory of filaments to encompass systems, such as bacterial flagella, that display competition between two helical structures of opposite chirality. A general, fully intrinsic formulation of the dynamics of bend and twist degrees of freedom is developed using the natural frame of space curves, spanning from the inviscid limit to ...
Goldstein, R +3 more
openaire +3 more sources
Terahertz optical bistability of graphene-coated cylindrical core–shell nanoparticles
Journal of Theoretical and Applied Physics, 2018 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 +1 more source