Results 51 to 60 of about 742,768 (286)

Interhemispheric Survey of Polar Cap Aurora [PDF]

Journal of Geophysical Research: Space Physics, 2018
AbstractThis study investigates the interhemispheric nature of polar cap auroras via ultraviolet imaging, combined with particle data, to determine whether they occur on open or closed field lines. Data from the SSUSI (Special Sensor Ultraviolet Spectrographic Imager) instrument on board the DMSP (Defence Meteorological Satellite Program) spacecraft ...
J. A. Reidy, R. C. Fear, D. K. Whiter, B. Lanchester, A. J. Kavanagh, S. E. Milan, J. A. Carter, L. J. Paxton, Y. Zhang   +8 more
openaire   +4 more sources

Exploring the influence of lactoferrin on wound healing and related signaling pathways: a systematic review

FEBS Open Bio, EarlyView.
Lactoferrin promotes wound healing by activating MAPK, PI3K/Akt, and extracellular matrix pathways, enhancing fibroblast remodeling, proliferation, and re‐epithelialization. These mechanisms highlight its therapeutic potential in inflammation control, tissue repair, and remodeling.
Morgana Lüdtke Azevedo, Kátia Cristiane Hall, Matheus dos Santos Fernandez, Geovanna Peter Corrêa, Rafael Guerra Lund   +4 more
wiley   +1 more source

A statistical study of polar cap flow channels observed in both hemispheres using SuperDARN radars

Journal of Space Weather and Space Climate, 2022
This paper details the first large-scale, interhemispheric statistical study into ionospheric fast flow (>900 m/s) channels in the polar cap using the SuperDARN radar network.
Herlingshaw Katie, Baddeley Lisa, Oksavik Kjellmar, Lorentzen Dag A., Laundal Karl M.   +4 more
doaj   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

American Polar Society Symposium 2003 [PDF]

, 2003
Women's Roles in Polar Regions: Past, Present, and Future. American Polar Society Symposium 2003. Byrd Polar Research Center, The Ohio State University, Columbus, Ohio, October 9-10, 2003.Byrd Polar Research Center, The Ohio State UniversityAmerican ...
Byrd Polar Research Center
core   +1 more source

Utilizing the polar cap index to explore strong driving of polar cap dynamics [PDF]

Journal of Geophysical Research: Space Physics, 2012
The polar cap, defined as a region of open magnetic flux, is an ideal region in which to investigate how properties of the solar wind directly affect the magnetosphere. For such studies, the polar cap (PC) index provides a useful characterization of the state of the polar ionosphere.
Gao, Ye, Kivelson, Margaret G., Ridley, Aaron J., Weygand, James M., Walker, Raymond J.   +4 more
openaire   +2 more sources

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Polar observations of electron density distribution in the Earth’s magnetosphere. 2. Density profiles [PDF]

Annales Geophysicae, 2002
Using spacecraft potential measurements of the Polar electric field experiment, we investigate electron density variations of key plasma regions within the magnetosphere, including the polar cap, cusp, trough, plasmapause, and auroral zone.
H. Laakso, H. Laakso, R. Pfaff, P. Janhunen   +3 more
doaj   +1 more source

The interconnection between cross‒polar cap convection and the luminosity of polar cap patches [PDF]

Journal of Geophysical Research: Space Physics, 2013
The transport of patches of ionization across the polar cap is carried by the convection electric field, which imposes an E×B drift to the plasma. This drift has an upward component when the plasma is convected toward the north magnetic pole and a downward component as it moves away from the pole.
G. W. Perry, J.‒P. St.‒Maurice, K. Hosokawa   +2 more
openaire   +1 more source

The polar sciences journal: the past and future of a crucial research instrument [PDF]

, 2022
Journals dedicated to the polar sciences have been outliers. Within both the history of science and the history of media, they stand out in several ways, including their comparatively late establishment of peer-review. It was not until the second half of
Gielas, Anna M.
core   +1 more source