Results 41 to 50 of about 89,813 (296)

Collective modes of a trapped ion-dipole system [PDF]

open access: yes, 2013
We study a simple model consisting of an atomic ion and a polar molecule trapped in a single setup, taking into consideration their electrostatic interaction.
García-Ripoll, Juan José   +1 more
core   +3 more sources

Main Oscillatory Polar Motion of the Earth and Its Excitation: Investigation in Both the Frequency and Time Domains

open access: yesJournal of Astronomy and Space Sciences
Two main components of polar motion are Chandler wobble and annual wobble. Annual wobble is obviously caused by the seasonal perturbations on the Earth – such was suspected as well as readily confirmed in unison.
Sung-Ho Na, Yu Yi
doaj   +1 more source

Phonon-enhanced nonlinearities in hexagonal boron nitride

open access: yesNature Communications, 2023
Polar crystals can be driven into collective oscillations by optical fields tuned to precise resonance frequencies. As the amplitude of the excited phonon modes increases, novel processes scaling non-linearly with the applied fields begin to contribute ...
Jared S. Ginsberg   +12 more
doaj   +1 more source

Collective dynamics of domain structures in liquid crystalline lipid bilayers

open access: yesРоссийский технологический журнал, 2022
Objectives. Numerous studies of biosystems indicate the distinct role of quasi-one-dimensional molecular structures in the transport of energy, charges, and information.
V. N. Kadantsev, A. N. Goltsov
doaj   +1 more source

Meteorological excitation of the annual polar motion [PDF]

open access: yesGeophysical Journal International, 1982
Summary. Numerous studies have indicated that the annual term in the polar motion cannot be explained in any detail by meteorological/hydrological excitation and no reasonable alternative excitations have been put forward. Part of the problem has been that the hydrostatic adjustment of the oceans to the atmospheric pressure changes has traditionally ...
openaire   +1 more source

Tunable Holstein model with cold polar molecules

open access: yes, 2011
We show that an ensemble of polar molecules trapped in an optical lattice can be considered as a controllable open quantum system. The coupling between collective rotational excitations and the motion of the molecules in the lattice potential can be ...
A. S. Alexandrov   +5 more
core   +1 more source

Research on Earth rotation and geodynamics in Poland in 2019–2022

open access: yesAdvances in Geodesy and Geoinformation, 2023
This paper summarizes the activity of the chosen Polish geodetic research teams in 2019–2022 in the fields of the Earth rotation and geodynamics. This publication has been prepared for the needs of the presentation of Polish scientists’ activities on the
Janusz Bogusz   +3 more
doaj   +1 more source

Possible role of tidal and rotational forcing on bradyseismic crises and volcanic unrest in the Campi Flegrei and Somma-Vesuvius areas

open access: yesFrontiers in Earth Science, 2023
Volcanic unrest at large calderas, led by the complex interaction between the degassing of the shallow magma reservoir and the overlying hydrothermal system, occurs at intervals of 10–100 years. Even if only a minority of bradyseismic crises ends with an
S. Lambert, G. Sottili
doaj   +1 more source

Finite temperature dynamics of vortices in the two dimensional anisotropic Heisenberg model [PDF]

open access: yes, 1998
We study the effects of finite temperature on the dynamics of non-planar vortices in the classical, two-dimensional anisotropic Heisenberg model with XY- or easy-plane symmetry.
-Jensen, N. G.   +5 more
core   +7 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

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