Results 61 to 70 of about 2,377,765 (304)

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

FEBS 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

Topological deconfinement transition in QCD at finite isospin density

Physics Letters B, 2017
The confinement–deconfinement transition is discussed from topological viewpoints. The topological change of the system is achieved by introducing the dimensionless imaginary chemical potential (θ).
Kouji Kashiwa, Akira Ohnishi
doaj   +1 more source

Topological origin of the protein folding transition

Physical Review E, 2022
In this paper, a geometrical and thermodynamical analysis of the global properties of the potential energy landscape of a minimalistic model of a polypeptide is presented. The global geometry of the potential energy landscape is supposed to contain relevant information about the properties of a given sequence of amino acids, that is, to discriminate ...
Loris Di Cairano, Riccardo Capelli, Ghofrane Bel-Hadj-Aissa, Marco Pettini   +3 more
openaire   +5 more sources

Interferometric schemes: a probe for topological edge states, a tool in weak measurements [PDF]

, 2014
In the first part of this thesis we propose interferometric schemes to probe the properties of edge states of topological insulators and superconductors.
Strübi, Grégory
core   +1 more source

Superuniversality from disorder at two-dimensional topological phase transitions [PDF]

, 2020
We investigate the effects of quenched randomness on topological quantum phase transitions in strongly interacting two-dimensional systems. We focus first on transitions driven by the condensation of a subset of fractionalized quasiparticles (“anyons ...
Parameswaran, Sa, Parameswaran, Siddharth Ashok, Kang, Byungmin, Vasseur, Romain, Potter, Andrew C, Gazit, Snir   +5 more
core   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Ferromagnetism in the vicinity of Lifshitz topological transitions [PDF]

Physical Review B, 2017
We show that the critical temperature of a ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. The significant variations of the the Curie temperature occur close to the Lifshitz topological transition points where ...
Grigoryev, P.S., Glazov, M.M., Kavokin, A.V., Varlamov, A.A.   +3 more
openaire   +3 more sources

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Topological hyperbolic metamaterials

Nanophotonics
Hyperbolic metamaterial (HMM) is a unique type of anisotropic material that can exhibit metal and dielectric properties at the same time. This unique characteristic results in it having unbounded isofrequency surface contours, leading to exotic phenomena
Li Zhitong, Gu Qing
doaj   +1 more source

Increasing the number of topological nodal lines in semimetals via uniaxial pressure

Scientific Reports, 2021
The application of pressure has been demonstrated to induce intriguing phase transitions in topological nodal-line semimetals. In this work we analyze how uniaxial pressure affects the topological character of BaSn $$_2$$ 2 , a Dirac nodal-line semimetal
Adolfo O. Fumega, Victor Pardo, A. Cortijo   +2 more
doaj   +1 more source