Results 21 to 30 of about 91,474 (277)

La dette écologique en questions : propos introductifs

open access: yesVertigO, 2016
This paper enlights the concept of ecological debt through the diversity of its definitions and consequences. What is the “power” of the concept ? What are the objects (material and immaterial debt) and its consequences ?
Agnès Michelot
doaj   +1 more source

«Reconnection”

open access: yesThe Clinical Journal of the International Institute for Bioenergetic Analysis, 2022
The centrality of the therapeutic, and therapist, conviction that reconnection to others is a central aim of the psychotherapeutic process is brought under examination. Re-connection implies a connection has existed. This premise may be inaccurate as far the inner structure of people with early and chronic severe relational trauma.
openaire   +1 more source

Ion‐scale structure in Mercury's magnetopause reconnection diffusion region

open access: yesGeophysical Research Letters, 2016
The strength and time dependence of the electric field in a magnetopause diffusion region relate to the rate of magnetic reconnection between the solar wind and a planetary magnetic field.
Daniel J. Gershman   +6 more
doaj   +1 more source

Effect of interchange instability on magnetic reconnection [PDF]

open access: yesNonlinear Processes in Geophysics, 2013
We present here the results of a study of interacting magnetic fields that involves a force normal to the reconnection layer. In the presence of such force, the reconnection layer becomes unstable to interchange disturbances.
W. Lyatsky, M. L. Goldstein
doaj   +1 more source

Turbulent Reconnection Acceleration

open access: yesThe Astrophysical Journal, 2022
Abstract The ubiquitous turbulence in astrophysical plasmas is important for both magnetic reconnection and reconnection acceleration. We study the particle acceleration during fast 3D turbulent reconnection with reconnection-driven turbulence.
Siyao Xu, Alex Lazarian
openaire   +3 more sources

Identifying the electron diffusion region in a realistic simulation of Earth's magnetotail

open access: yesGeophysical Research Letters, 2016
A historic challenge to understanding geomagnetic activity is determining where in Earth's magnetotail magnetic energy is converted into particle energy and heat by magnetic reconnection.
Maha Ashour‐Abdalla   +7 more
doaj   +1 more source

Reconnection Rate and Transition from Ion-coupled to Electron-only Reconnection

open access: yesThe Astrophysical Journal, 2023
Standard collisionless magnetic reconnection couples with both electron and ion dynamics. Recently, a new type of magnetic reconnection, electron-only magnetic reconnection without ion outflow, has been observed, and its reconnection rate has been found ...
Yundan Guan   +4 more
doaj   +1 more source

The low acute effectiveness of a high-power short duration radiofrequency current application technique in pulmonary vein isolation for atrial fibrillation

open access: yesCardiology Journal, 2021
BACKGROUND: Application of high power radiofrequency (RF) energy for a short duration (HPSD) to isolate pulmonary vein (PV) is an emerging technique. But power and duration settings are very different across different centers.
Ekrem Ücer   +6 more
doaj   +1 more source

Signatures of Secondary Collisionless Magnetic Reconnection Driven by Kink Instability of a Flux Rope

open access: yes, 2014
The kinetic features of secondary magnetic reconnection in a single flux rope undergoing internal kink instability are studied by means of three-dimensional Particle-in-Cell simulations.
Delzanno, G. L.   +7 more
core   +3 more sources

Indeterminacy and instability in Petschek reconnection [PDF]

open access: yes, 2013
We explain two puzzling aspects of Petschek's model for fast reconnection. One is its failure to occur in plasma simulations with uniform resistivity. The other is its inability to provide anything more than an upper limit for the reconnection rate.
Daniel B. Seaton   +8 more
core   +2 more sources

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