Results 91 to 100 of about 15,565,753 (347)

Quantum state atomic force microscopy

Physical Review A, 2017
New classical modalities of atomic force microscopy continue to emerge to achieve higher spatial, spectral, and temporal resolution for nanometrology of materials. Here, we introduce the concept of a quantum mechanical modality that capitalizes on squeezed states of probe displacement.
Passian, Ali, Siopsis, George
openaire   +3 more sources

Fluctuations of the Casimir-Polder force between an atom and a conducting wall

, 2007
We consider the quantum fluctuations of the Casimir-Polder force between a neutral atom and a perfectly conducting wall in the ground state of the system.
G. Barton, G. Barton, G. Compagno, H. B. G. Casimir, P. W. Milonni, R. Messina, R. Passante   +6 more
core   +1 more source

Assessing the Current State of Amber Force Field Modifications for DNA

Journal of Chemical Theory and Computation, 2016
The utility of molecular dynamics (MD) simulations to model biomolecular structure, dynamics, and interactions has witnessed enormous advances in recent years due to the availability of optimized MD software and access to significant computational power,
R. Galindo-Murillo, James C Robertson, Marie Zgarbová, J. Šponer, M. Otyepka, P. Jurečka, T. Cheatham   +6 more
semanticscholar   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Model calculation of a radio communication line based on remote sensing data

Физика волновых процессов и радиотехнические системы
Background. In the process of functioning of modern complexes and specialized equipment in conditions of direct visibility between radio facilities, data transmission is not always possible, which significantly reduces the efficiency of the data ...
Andrey T. Albuzov, Pavel E. Shakhov, Vladimir I. Filatov   +2 more
doaj   +1 more source

INFLUENCE OF TANGENTIAL CUTTING FORCE ON A STRESS STATE OF GRINDING INSTRUMENT [PDF]

, 2018
Estimation of influence of tangential cutting force on a stress state of grinding ...
KOVALENKO, A., NAZARENKO, O., TANTSURA, Ganna, VINNICHENKO, Ye.   +3 more
core  

Periodic force induced stabilization or destabilization of the denatured state of a protein

, 2012
We have studied the effects of an external sinusoidal force in protein folding kinetics. The externally applied force field acts on the each amino acid residues of polypeptide chains.
Bidhan Chandra Bag, Hansen J. P., Liu D.-S., Mai Suan Li, Pulak Kumar Ghosh   +4 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Developing a molecular dynamics force field for both folded and disordered protein states

Proceedings of the National Academy of Sciences of the United States of America, 2018
Significance Many proteins that perform important biological functions are completely or partially disordered under physiological conditions. Molecular dynamics simulations could be a powerful tool for the structural characterization of such proteins ...
Paul Robustelli, S. Piana, D. Shaw
semanticscholar   +1 more source

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

FEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source