Results 41 to 50 of about 3,458,747 (252)

Reversible layered/non-layered phase transition in a topological semimetal

Nature Communications
The essence of phase transition is symmetry breaking according to Landau’s theory, which serves as a fundamental spatial metric to shape materials’ structures and facilitate the discovery of emergent quantum phases.
Qingrong Liang, Jiali Chen, Zhaoyang Xie, Xun Shi, Liu Yang, Wei Jiang, Jiadong Zhou, Shoujun Zheng   +7 more
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Quantum Objects [PDF]

, 2012
In this paper, we suggest an alternative interpretation for the quantum state vector, which, by considering temporal parts for physical objects, aims to give an intelligible account of measurement problem in quantum mechanics.
Golshani, Mehdi, Mansouri, Alireza, Karbasizadeh, Amir Ehsan   +2 more
core  

Measurement-driven dynamics for a coherently-excited atom [PDF]

, 2012
The phenomenon of telegraphing in a measurement-driven two-level atom was noted in Cresser et al. [Cresser, J.D.; Barnett, S.M.; Jeffers, J.; Pegg, D.T. Opt. Commun. 2006, 264, 352361].
Colin, A.J.T., Colin, Andrew J. T., Barnett, Stephen M., Jeffers, J., Jeffers, John, Barnett, S.M.   +5 more
core   +4 more sources

Third Harmonic Generation in Thin NbOI₂ and TaOI₂

Nanomaterials
The niobium oxide dihalides have recently been identified as a new class of van der Waals materials exhibiting exceptionally large second-order nonlinear optical responses and robust in-plane ferroelectricity.
Tianhong Tang, Deng Hu, Di Lin, Liu Yang, Ziling Shen, Wenchen Yang, Haiyang Liu, Hanting Li, Xiaoyue Fan, Zhiwei Wang, Gang Wang   +10 more
doaj   +1 more source

Advanced quantum noise correlations

New Journal of Physics, 2014
We use the quantum correlations of twin beams of light to investigate the fundamental addition of noise when one of the beams propagates through a fast-light medium based on phase-insensitive gain.
Ulrich Vogl, Ryan T Glasser, Jeremy B Clark, Quentin Glorieux, Tian Li, Neil V Corzo, Paul D Lett   +6 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Polymorphic functionalization driven by ion displacement-induced antiferroelectric ordering in CuBiP₂Se₆

Nature Communications
Antiferroelectric two-dimensional materials, with their unique physical mechanisms, exhibit tunable polarization dynamics and layered structural characteristics, enabling the synergistic implementation of synaptic plasticity, sensory-mimetic ...
Dongliang Yang, Weifan Meng, Zhongyi Wang, Tianze Yu, Ce Li, Qianyu Zhang, Zirui Zhang, Huihan Li, Yinan Lin, Fei Xue, Peng Lin, Linfeng Sun   +11 more
doaj   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

FEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn, Artur Osyczka, Marcin Sarewicz   +2 more
wiley   +1 more source