Results 81 to 90 of about 4,888,321 (297)

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

Topological Properties of Geometric Phases [PDF]

Progress of Theoretical Physics Supplement, 2006
The level crossing problem and associated geometric terms are neatly formulated by using the second quantization technique both in the operator and path integral formulations. The analysis of geometric phases is then reduced to the familiar diagonalization of the Hamiltonian.
openaire   +2 more sources

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Cumulants associated with geometric phases [PDF]

EPL (Europhysics Letters), 2014
The Berry phase can be obtained by taking the continuous limit of a cyclic product $-\mbox{Im} \ln \prod_{I=0}^{M-1} \langle Ψ_0({\boldsymbol ξ}_I)|Ψ_0({\boldsymbol ξ}_{I+1})\rangle$, resulting in the circuit integral $i \oint \mbox{d}{\boldsymbol ξ} \cdot \langle Ψ_0({\boldsymbol ξ})|\nabla_{\boldsymbol ξ}|Ψ_0({\boldsymbol ξ}\rangle$.
Hetenyi, B., Yahyavi, M.
openaire   +5 more sources

GP-SIDH: geometric phase shifting demonstration

, 2018
Geometric phase shifting while rotating the linear ...
Sung-Wook Min (1509514), Junkyu Yim (4599787), KiHong Choi (5008607)   +2 more
core   +1 more source

Genetic dissection of human ABCE1 in yeast reveals separable requirements for ribosome recycling and suppression of aberrant reinitiation

FEBS Open Bio, EarlyView.
Human ABCE1 cannot functionally replace its yeast ortholog. Yeast–human chimera analysis identified NBD1 as a major interspecies barrier. Genetic screening yielded hABCE1 revertants that rescue yeast viability but fail to suppress aberrant translation reinitiation in the 3′ UTR.
Eriko Nakata, Yuxin Li, Kei Endo, Koichi Ito   +3 more
wiley   +1 more source

Geometric Phase Distributions for Open Quantum Systems [PDF]

, 2004
In an open system, the geometric phase should be described by a distribution. We show that a geometric phase distribution for open system dynamics is in general ambiguous, but the imposition of reasonable physical constraints on the environment and its ...
K.-P. Marzlin, Marzlin, K.-P., B. C. Sanders, Sanders, Barry C., Ghose, Shohini, S. Ghose   +5 more
core   +1 more source

Fluorination: A strategy to tune the interactions of molecules and nanoscale systems with biological matter

FEBS Open Bio, EarlyView.
This minireview explores fluorination as a key strategy to optimize therapeutic molecules and nanocarriers. By incorporating different fluorinated motifs—from single atoms to linear and branched chains—drug delivery, cellular uptake, and colloidal stability can be improved and fine‐tuned.
Martina Beccalli, Beatrice Lucia Bona, Francesca Baldelli Bombelli   +2 more
wiley   +1 more source

Exploiting the combined dynamic and geometric phases for optical vortex beam generation using metasurfaces

Nanophotonics
The generation of optical vortex beams is pivotal for a myriad of applications, encompassing optical tweezing, optical communications, and quantum information, among others.
Cui Jialong, Qing Chen, Feng Lishuang, Zhang Dengke   +3 more
doaj   +1 more source

Generalised geometric phase

Physics Letters A
A generalised notion of geometric phase for pure states is proposed and its physical manifestations are shown. An appreciation of fact that the interference phenomenon also manifests in the average of an observable, allows us to define the argument of the matrix element of an observable as a generalised relative phase.
openaire   +2 more sources