Results 81 to 90 of about 217,482 (300)

Basal topographic controls on the stability of the West Antarctic ice sheet: lessons from Foundation Ice Stream

Annals of Glaciology, 2017
Using observations of basal topography, ice thickness and modern accumulation rates, we use theory and a dynamic flowline model to examine the sensitivity of Antarctica's Foundation Ice Stream to changes in sea level, accumulation and buttressing at the ...
Kathleen Huybers, Gerard Roe, Howard Conway   +2 more
doaj   +1 more source

A Microbial Lipid‐ATP Synthase Axis Fuels NK Cell Antitumor Activity

Advanced Science, EarlyView.
This study focuses on the mechanism by which gut microbiota‐derived outer membrane vesicles (OMVs) regulate NK cell antitumor activity. B. intestinalis is identified to decrease extra‐intestinal tumor growth via its OMVs enriched in sphingosine (SP).
Kaiyuan Yu, Xinyu Sun, Wanxia Ma, Jianming Yang, Xuan Sun, Lisong Zhang, Yumeng Liu, Tianshu Ren, Qi Wang, Jingyu Wang, Xiao Li, Xianping Peng, Liu Yang, Junqiang Lv, Zhi Yao, Zhi‐Song Zhang, Quan Wang   +16 more
wiley   +1 more source

Estimation of ice fabric within Whillans Ice Stream using polarimetric phase-sensitive radar sounding

Annals of Glaciology, 2020
Here we use polarimetric measurements from an Autonomous phase-sensitive Radio-Echo Sounder (ApRES) to investigate ice fabric within Whillans Ice Stream, West Antarctica.
Thomas M. Jordan, Dustin M. Schroeder, Cooper W. Elsworth, Matthew R. Siegfried   +3 more
doaj   +1 more source

Tidal influence on Rutford Ice Stream, West Antarctica: observations of surface flow and basal processes from closely-spaced GPS and passive seismic stations [PDF]

, 2008
High-resolution surface velocity measurements and passive seismic observations from Rutford Ice Stream, West Antarctica, 40 km upstream from the grounding line are presented.
A.E. Behar, A.M. Smith, Doake, Doake, Frolich, G. Aðalgeirsdóttir, K. Makinson, K.W. Nicholls, M.A. King, Pugh, Rignot, T. Murray   +11 more
core   +2 more sources

Ice flow in the northeast Greenland ice stream [PDF]

Annals of Glaciology, 2000
AbstractWe have measured ice flow and detailed topography in northeastern Greenland using satellite-based synthetic-aperture radar (SAR) interferometry. The subject of this study is the large ice stream that drains this quadrant of the ice sheet. A single SAR interferogram allows the measurement of one component of motion over a several-day-long ...
Joughin, IR, Fahnestock, M, Bamber, JL
openaire   +1 more source

Endogenous Ceramide 24:1 Constrains Th17‐Driven Neutrophilic Inflammation by Antagonizing EP2 Signaling

Advanced Science, EarlyView.
Cer24:1 levels are reduced in neutrophilic asthma and inversely correlate with disease severity and airway neutrophilia. Restoring Cer24:1 suppresses pathogenic Th17 differentiation by engaging EP2 on CD4+ T cells, thereby dampening the JAK2–STAT3–RORγt axis and reducing IL‐17 production.
Huan Liu, Abudureyimujiang Aili, Zheng Kuang, Liting Cao, Zemin Li, Ying Shang, Yingying Ge, Tingting Hu, Yongchang Sun, Wuli Zhao, Rong Jin, Chun Chang   +11 more
wiley   +1 more source

Paleo ice flow and subglacial meltwater dynamics in Pine Island Bay, West Antarctica [PDF]

The Cryosphere, 2013
Increasing evidence for an elaborate subglacial drainage network underneath modern Antarctic ice sheets suggests that basal meltwater has an important influence on ice stream flow.
F. O. Nitsche, K. Gohl, R. D. Larter, C.-D. Hillenbrand, G. Kuhn, J. A. Smith, S. Jacobs, J. B. Anderson, M. Jakobsson   +8 more
doaj   +1 more source

Investigation of land ice-ocean interaction with a fully coupled ice-ocean model, Part 1: Model description and behavior [PDF]

, 2012
Antarctic ice shelves interact closely with the ocean cavities beneath them, with ice shelf geometry influencing ocean cavity circulation, and heat from the ocean driving changes in the ice shelves, as well as the grounded ice streams that feed them.
A. Gnanadesikan, Assmann, Benn, C. M. Little, D. N. Goldberg, Determann, Dupont, Durand, Echelmeyer, Goldberg, Goldberg, Grosfeld, Grosfeld, Hallberg, Heimbach, Hindmarsh, Holland, Holland, Holland, Jacobs, Jacobs, Jenkins, Jenkins, Jenkins, Jenkins, Jenkins, Joughin, Joughin, Joughin, Krabill, Lane-Serff, Larour, Larour, Little, Little, Little, Little, M. Oppenheimer, MacAyeal, Nicholls, Nowicki, O. V. Sergienko, Parizek, Paterson, Payne, Payne, Pollard, R. Hallberg, Rignot, Scambos, Schmeltz, Schoof, Schoof, Shepherd, Shepherd, Shepherd, Thomas, Thomas, Thomas, Van der Veen, Walker, Weertman, Weertman   +62 more
core   +1 more source

Mild Focal Cooling Decouples Dendrites to Reconfigure Cortical Output

Advanced Science, EarlyView.
Mild cooling of the cortical surface selectively modulates apical dendritic excitability, plasticity, and somato‐dendritic coupling, while uncoupling these effects from basal dendrites, and reshapes apical‐driven responses in barrel cortex during whisker touch.
Meisam Habibi Matin, Shulan Xiao, Krishna Jayant   +2 more
wiley   +1 more source

Greenland Ice Sheet and rising sea level in a worst-case climate change scenario [PDF]

, 2004
Models that simulate sheet flow in the Greenland Ice Sheet balance forces at gridpoints in the map plan, which allows only a slow response to changes in climate forcing.
Terry Hughes
core   +1 more source