Results 41 to 50 of about 1,852,127 (286)

Hydrological excitations of polar motion, 1993-2002 [PDF]

open access: yesGeophysical Journal International, 2005
SUMMARY Changes in continental water storage obtained from an advanced land data assimilation system (LDAS) are employed to compute hydrological excitations of polar motion for the 10-yr period of 1993‐2002. The results are compared with observed excitations of polar motion and contributions from the atmosphere and ocean, and with results from previous
J. L. Chen, C. R. Wilson
openaire   +1 more source

On the Eigen‐Mode Excitation of Linear Oscillators and the Earth's Polar Motion [PDF]

open access: yesAnnalen der Physik, 2020
AbstractBy transforming a 1D second‐order linear oscillator into a 2D first‐order polar motion differential equation, it can be shown that the finite smoothness (i.e., the presence of jump in finite order derivatives) of the applied Newtonian forcing constitutes the sufficient and necessary condition for instantaneous excitation of free eigen‐mode ...
Ming Fang, Xinhao Liao, Xueqing Xu
openaire   +4 more sources

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

Further evidence for oceanic excitation of polar motion [PDF]

open access: yesGeophysical Journal International, 1999
SUMMARY While the role of the atmosphere in driving variations in polar motion is well established, the importance of the oceans has been recognized only recently. Further evidence for the role of the oceans in the excitation of polar motion is presented.
J. Nastula, R. M. Ponte
openaire   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Excitation of twin-vortex flow in the nightside high-latitude ionosphere during an isolated substorm [PDF]

open access: yes, 2002
We present SuperDARN radar observations of the ionospheric flow during a well-observed high-latitude substorm which occurred during steady northward IMF conditions on 2 December 1999.
Watermann, J.F.   +4 more
core   +5 more sources

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

On the excitation of the Earth' polar motion

open access: yesGeophysical Research Letters, 1985
One of the conclusions reached by recent studies of Barnes et al. and later Hide was “that atmospheric excitation alone was sufficient to account for the observed polar motion over (the studied) period, that there is apparently no need to invoke substantial excitation either by the fluid core or …earthquakes.” The purpose of the present paper is to ...
openaire   +1 more source

On Random Excitation and Damping of the Polar Motion [PDF]

open access: yesSymposium - International Astronomical Union, 1980
The paper deals with the behavior of the Earth's pole when exclusively random excitations are at work (e.g. internal displacements of matter, treated as a process of stochastic character). The title of the paper is similar to that of a paper of N. Sekiguchi whose probabilistic final deductions are very ingenious.
openaire   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

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