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Related papers: Site-Selective Dynamics of Azidolysozyme

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We use high resolution Eulerian hydrodynamics simulations to study kinematic properties of the low ionization species in damped Ly-alpha systems at redshift z=3. Our adaptive mesh refinement simulations include most key ingredients relevant…

Astrophysics · Physics 2009-11-13 Alexei O. Razoumov , Michael L. Norman , Jason X. Prochaska , Arthur M. Wolfe

We present new estimates for the statistical properties of damped Lyman-$\alpha$ absorbers (DLAs). We compute the column density distribution function at $z>2$, the line density, $\mathrm{d}N/\mathrm{d}X$, and the neutral hydrogen density,…

Astrophysics of Galaxies · Physics 2017-01-25 Simeon Bird , Roman Garnett , Shirley Ho

We report the phenomenon of periodic shape oscillations occurring in 3T3 fibroblasts merely as a consequence of a loss of cell-substrate adhesion. The oscillatory behavior can last many hours at a constant frequency, and can be switched off…

Biological Physics · Physics 2007-05-23 Pramod A Pullarkat

We present the phase characteristics study of the Atacama Large Millimeter/submillimeter Array (ALMA) long (up to 3 km) baseline, which is the longest baseline tested so far using ALMA. The data consist of long time-scale (10 - 20 minutes)…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 Satoki Matsushita , Yoshiharu Asaki , Ryohei Kawabe , Ed Fomalont , Denis Barkats , Stuartt Corder

In this article we employ density functional theory in the generalized gradient approximation to investigate the structural and electronic properties of the solid solution alloy $\text{Zn}\text{Se}_x\text{S}_{1-x}$ in the wurtzite…

Materials Science · Physics 2022-05-18 S. Sarkar , O. Eriksson , D. D. Sarma , I. Di Marco

Phase-formation of surface alloying by spinodal decomposition has been studied for the first time at an electrified interface. For this aim Zn was electrodeposited on Au(111) from the ionic liquid AlCl3-MBIC (58:42) containing 1 mM Zn(II)…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 J. Dogel , R. Tsekov , W. Freyland

While much is known about different allosteric regulation mechanisms, the nature of the "allosteric signal", and the timescale on which it propagates, remains elusive. The PDZ3 domain from postsynaptic density-95 protein is a small protein…

We investigate the dynamics of Landau-Zener transitions in an anisotropic, dissipative three-level model (3-LZM) using the numerically accurate multiple Davydov D2 Ansatz in the framework of time-dependent variation. It is demonstrated that…

Quantum Physics · Physics 2023-06-06 Lixing Zhang , Lu Wang , Maxim F. Gelin , Yang Zhao

We use Small Angle Neutron Scattering (SANS), with an original analysis method, to obtain both the characteristic sizes and the inner composition of lysozyme-pectin complexes depending on the charge density. Lysozyme is a globular protein…

Soft Condensed Matter · Physics 2010-05-11 Isabelle Schmidt , Fabrice Cousin , Christophe Huchon , François Boué , Monique A. V. Axelos

In this article, we discuss metal-protein interactions in the Ag-lysozyme complex by spectroscopic measurements. The analysis of the variation in relative intensities of SERS bands reveal the orientation and the change in conformation of…

Biological Physics · Physics 2016-09-08 Goutam Chandra , Kalyan S. Ghosh , Swagata Dasgupta , Anushree Roy

The Allan variance of signal and reference frequencies is measured by a least-squares fit of the output of two analog-to-digital converters (ADC's) to ideal sine waves. The difference in the fit phase of the two channels generates the…

Instrumentation and Detectors · Physics 2018-03-14 Ralph G. DeVoe

This paper reports the impact of process-dependent structural deformation and lattice strain by doping, resulting in domain re-orientation along the a-axis. For this investigation, the smaller La3+ cation is introduced at A-site and the…

Materials Science · Physics 2023-12-13 Antony Jeyaseelan A , Sandip Bysakh , Jalaja M A , Soma Dutta

We present results of our numerical simulation of three H2-bearing damped Lyman alpha absorbers (DLAs) in the redshift interval ~ 2-3. The systems we have modelled are the DLAs at zabs = 2.3377 towards the quasar LBQS 1232+0815, at zabs =…

Astrophysics of Galaxies · Physics 2016-04-27 Katherine Rawlins , Gargi Shaw , Raghunathan Srianand

Concentrated aqueous solutions of the protein lysozyme undergo a liquid solid transition upon a temperature quench into the unstable spinodal region below a characteristic arrest temperature of Tf=15C. We use video microscopy and…

Soft Condensed Matter · Physics 2015-05-13 Thomas Gibaud , Peter Schurtenberger

The crossover to Rouse-like behavior for the self-diffusion constant D, the viscosity $\eta$, and the equilibrium structural statistics of n-alkanes $(6 \le n \le 66)$ is studied numerically. For small n the chains are non-Gaussian and the…

Chemical Physics · Physics 2009-10-31 Maurizio Mondello , Gary S. Grest , Edmund B. Webb , P. Peczak , Scott T. Milner

Ammonium DiNitramide (ADN) is one of the most promising green energetic oxidizers for future rocket propellant formulations. In the present work, we report a detailed theoretical study on structural, elastic, and vibrational properties of…

Materials Science · Physics 2016-09-05 N. Yedukondalu , Vikas D. Ghule , G. Vaitheeswaran

The power spectral density (PSD) represents a key property quantifying the stochastic or random noise type fluctuations in variable sources like Active Galactic Nuclei (AGN). In recent years, estimates of the PSD have been refined by…

High Energy Astrophysical Phenomena · Physics 2020-10-05 Nachiketa Chakraborty , Frank M. Rieger

Kinematic viscosities were measured for iodobenzene + n-alkane mixtures at (288.15-308.15) K and atmospheric pressure. Using our previous density data, dynamic viscosities ($\eta$), deviations in absolute viscosity ($\Delta \eta$) and…

We report the signatures of dynamic spin fluctuations in the layered honeycomb Li$_3$Cu$_2$SbO$_6$ compound, with a 3$d$ S = 1/2 $d^9$ Cu$^{2+}$ configuration, through muon spin rotation and relaxation ($\mu$SR) and neutron scattering…

We used DFT to study the energetics of the decomposition of alane, AlH3, on the Si(001) surface, as the acceptor complement to PH3. Alane forms a dative bond with the raised atoms of silicon surface dimers, via the Si atom lone pair. We…

Materials Science · Physics 2017-09-13 Richard L. Smith , David R. Bowler