Results 71 to 80 of about 217,482 (300)

Interplay of grounding-line dynamics and sub-shelf melting during retreat of the Bjørnøyrenna Ice Stream

Scientific Reports, 2018
The Barents Sea Ice Sheet was a marine-based ice sheet, i.e., it rested on the Barents Sea floor during the Last Glacial Maximum (21 ky BP). The Bjørnøyrenna Ice Stream was the largest ice stream draining the Barents Sea Ice Sheet and is regarded as an ...
Michele Petrini, Florence Colleoni, Nina Kirchner, Anna L. C. Hughes, Angelo Camerlenghi, Michele Rebesco, Renata G. Lucchi, Emanuele Forte, Renato R. Colucci, Riko Noormets   +9 more
doaj   +1 more source

A shallow approximation for ice streams sliding over strong beds

Journal of Glaciology, 2023
Ice streams are regions of rapid ice sheet flow characterised by a high degree of sliding over a deforming bed. The shallow shelf approximation (SSA) provides a convenient way to obtain closed-form approximations of the velocity and flux in a rapidly ...
Katarzyna L. P. Warburton, Duncan R. Hewitt, Colin R. Meyer, Jerome A. Neufeld   +3 more
doaj   +1 more source

Ice fabric in an Antarctic ice stream interpreted from seismic anisotropy [PDF]

, 2017
Here we present new measurements of an anisotropic ice fabric in a fast moving (377 ma−1) ice stream in West Antarctica. We use ∼6000 measurements of shear wave splitting observed in microseismic signals from the bed of Rutford Ice Stream, to show that ...
Alan F. Baird, Alex M. Brisbourne, Alley, Alley, Andrew M. Smith, Azuma, Bingham, Bons, Carlos Martín, Conway, Deconto, Diez, Duval, Emma C. Smith, Faria, Faria, Favier, Gagliardini, Gillet-Chaulet, Harland, Hill, J. Michael Kendall, Lliboutry, Ma, Matsuoka, Maurel, Minchew, Murray, Nanthikesan, Ng, Picotti, Pimienta, Pollard, Robert S. White, Savage, Silver, Smith, Smith, Smith, Teanby, Wuestefeld   +40 more
core   +4 more sources

Tunable 3D‐Printed Static Mixers for Gradient Bioprinting With High Cell Viability

Advanced Materials Technologies, EarlyView.
ABSTRACT The fabrication of native tissue‐like structures with gradual transitions in material properties, cell types, and growth factors remains a major challenge in biofabrication due to the lack of suitable methods. Mimicking the hierarchical organization of living tissues is essential for functional models, yet creating gradient, multimaterial ...
Florian Hofmann, Jessica Faber, Franz Moser, Alessandro Cianciosi, Nicoletta Murenu, Joachim Schenk, Katrin G. Heinze, Natascha Schaefer, Silvia Budday, Tomasz Jungst   +9 more
wiley   +1 more source

Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53

Advanced Science, EarlyView.
NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore, Andrea Basile, Stefano Freddi, Irene Schiano Lomoriello, Carlo Ribelle Zucca, Giuseppe Ciossani, Luigi Scietti, Alessandro Cuomo, Simona Ronzoni, Simone Pelicci, Mario Faretta, Elena Zaccheroni, Giuliana Pelicci, Vittoria Matafora, Angela Bachi, Rosalind Helen Gunby, Salvatore Pece, Sara Sigismund, Letizia Lanzetti, Ivan Nicola Colaluca, Pier Paolo Di Fiore   +20 more
wiley   +1 more source

The role of ice streams in a coupled ice flow-ocean modeling approach at the Filchner-Ronne Ice Shelf, Antarctica [PDF]

, 2014
The ice flow at the margins of the Antarctic Ice Sheet (AIS) is moderated by large ice shelves. Their buttressing effect substantially controls the mass balance of the AIS and thus its contribution to sea level rise.
Determann, Jürgen, Goeller, Sebastian, Thoma, Malte, Timmermann, Ralph   +3 more
core  

Reactivation of Kamb Ice Stream tributaries triggers century-scale reorganization of Siple Coast ice flow in West Antarctica [PDF]

, 2015
Ongoing, centennial-scale flow variability within the Ross ice streams of West Antarctica suggests that the present-day positive mass balance in this region may reverse in the future.
Bougamont, M, Carter, SP, Christoffersen, P, Fricker, HA, Price, SF, Tulaczyk, S   +5 more
core   +2 more sources

De Novo Design and Directed Evolution Refinement of Mirror‐Image Protein Binders Targeting Interleukin‐4

Advanced Science, EarlyView.
This study presents the de novo design and directed evolution of a mirror‐image D‐protein inhibitor targeting human interleukin‐4 (IL‐4). The engineered molecule exhibits nanomolar binding affinity for IL‐4 and effectively inhibits IL‐4–mediated signaling.
Liqing Xu, Yuxiang Ren, Tongyue Wang, Hongyong Li, Yue Yao, Lei Liu, Ke Sun, Peilong Lu   +7 more
wiley   +1 more source

Brief Communication: Can recent ice discharges following the Larsen-B ice-shelf collapse be used to infer the driving mechanisms of millennial-scale variations of the Laurentide ice sheet? [PDF]

, 2011
Discussion paper.The effects of an ice-shelf collapse on inland glacier dynamics have recently been widely studied, especially since the breakup of Antarctic Peninsula's Larsen-B ice shelf in 2002.
Ritz, Catherine, Robinson, Alexander, Álvarez-Solas, J.   +2 more
core   +1 more source

SKOOTS: Skeleton‐Oriented Object Segmentation for Mitochondria in High‐Resolution Cochlear EM Datasets

Advanced Science, EarlyView.
Skeleton‐oriented object segmentation (SKOOTS) introduces a new strategy for 3D mitochondrial instance segmentation by predicting explicit skeletons rather than relying on boundary cues. This approach enables robust analysis of densely packed organelles in large FIB‐SEM datasets.
Christopher J. Buswinka, Richard T. Osgood, Hidetomi Nitta, Artur A. Indzhykulian   +3 more
wiley   +1 more source