Results 41 to 50 of about 18,238 (212)

Spatially extensive estimates of annual accumulation in the dry snow zone of the Greenland Ice Sheet determined from radar altimetry [PDF]

, 2010
We present estimates of accumulation rate along a 200 km transect ranging in elevation from 2750 to 3150 m in the dry snow zone on the western slope of the Greenland Ice Sheet.
Guo, Q., Helm, Veit, Helm, V., de la Peña, S., Mair, D., Shepherd, A., A. Shepherd, Huybrechts, P., Q. Guo, D. Wingham, Cullen, R., S. de la Peña, P. Huybrechts, Hanna, E., Huybrechts, Philippe, V. Helm, Wingham, D., D. Mair, E. Hanna, R. Cullen, Nienow, P., P. Nienow   +21 more
core   +1 more source

Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries

Journal of Glaciology, 2017
This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in response to 20th ...
DANIELE PEANO, FLORENCE COLLEONI, AURÉLIEN QUIQUET, SIMONA MASINA   +3 more
doaj   +1 more source

Assessing the continuity of the blue ice climate record at Patriot Hills, Horseshoe Valley, West Antarctica [PDF]

, 2016
We use high resolution Ground Penetrating Radar (GPR) to assess the continuity of the Blue Ice Area (BIA) horizontal climate record at Patriot Hills, Horseshoe Valley, West Antarctica.
Turney, Chris S. M., Turney, Chris, Nicholas R. Golledge, Golledge, NR ; https://orcid.org/, Dunning, SA, Fogwill, CJ ; https://orcid.org/, Ross, N, Hein, AS, Winter, K, Marrero, Shasta M., Winter, Kate, Marrero, SM, Hein, Andrew, Golledge, Nicholas R., Kate Winter, Dunning, Stuart A., Hein, Andrew S., Christopher J. Fogwill, Fogwill, Christopher, Fogwill, Christopher J., Hein, Andrew; id_orcid, Woodward, J, Chris S. M. Turney, Sugden, David, Bingham, RG, Andrew S. Hein, Woodward, John, Golledge, Nicholas, Sugden, DE, Ross, Neil, Marrero, Shasta, Bingham, Robert, Shasta M. Marrero, Sugden, David E., Robert G. Bingham, Dunning, Stuart, John Woodward, Turney, Chris S. M.; id_orcid, Neil Ross, David E. Sugden, Stuart A. Dunning, Bingham, Robert G., Turney, C ; https://orcid.org/   +42 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Basal hydrofractures near sticky patches

Journal of Glaciology, 2023
Basal crevasses are macroscopic structural discontinuities at the base of ice sheets and glaciers that arise by fracture. Motivated by observations and by the mechanics of elastic fracture, we hypothesise that spatial variations in basal stress (in the ...
Hanwen Zhang, Timothy Davis, Richard F. Katz, Laura A. Stevens, Dave A. May   +4 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Evaluating an accelerated forcing approach for improving computational efficiency in coupled ice sheet–ocean modelling [PDF]

Geoscientific Model Development
Coupled ice sheet–ocean models are increasingly being developed and applied to important questions pertaining to processes at the Greenland and Antarctic Ice Sheet margins, which play a pivotal role in ice sheet stability and sea level rise projections.
Q. Zhou, C. Zhao, R. Gladstone, T. Hattermann, T. Hattermann, D. Gwyther, B. Galton-Fenzi, B. Galton-Fenzi, B. Galton-Fenzi   +8 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Comparing a thermo-mechanical Weichselian Ice Sheet reconstruction to reconstructions based on the sea level equation: aspects of ice configurations and glacial isostatic adjustment [PDF]

Solid Earth, 2014
In this study we compare a recent reconstruction of the Weichselian Ice Sheet as simulated by the University of Maine ice sheet model (UMISM) to two reconstructions commonly used in glacial isostatic adjustment (GIA) modelling: ICE-5G and ANU (Australian
P. Schmidt, B. Lund, J-O. Näslund, J. Fastook   +3 more
doaj   +1 more source