Results 71 to 80 of about 23,744 (306)

GeoTechnical Investigations for the Dalton Highway Innovation Project As A Case Study of the Ice-Rich Syngenetic Permafrost [PDF]

, 2010
INE/AUTC 11 ...
Dillon, Matthew, Kanevskiy, Mikhail, O’Donnell, Jonathan, Shur, Yuri, Stephani, Eva   +4 more
core  

Coastal permafrost landscape development since the Late Pleistocene in the western Laptev Sea, Siberia [PDF]

, 2011
The palaeoenvironmental development of the western Laptev Sea is understood primarily from investigations of exposed cliffs and surface sediment cores from the shelf.
Andreev, Andrei, Grigoriev, M. N., Kunitsky, V. V., Murray, A., Overduin, Pier Paul, Schirrmeister, Lutz, Winterfeld, Maria   +6 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

Deglaciation and future stability of the Coats Land ice margin, Antarctica [PDF]

The Cryosphere, 2018
The East Antarctic Ice Sheet discharges into the Weddell Sea via the Coats Land ice margin. We have used geophysical data to determine the changing ice-sheet configuration in this region through its last glacial advance and Holocene retreat and to ...
D. A. Hodgson, D. A. Hodgson, K. Hogan, J. M. Smith, J. A. Smith, C.-D. Hillenbrand, A. G. C. Graham, P. Fretwell, C. Allen, V. Peck, J.-E. Arndt, B. Dorschel, C. Hübscher, A. M. Smith, R. Larter   +14 more
doaj   +1 more source

Europa, Another Water Moon? [PDF]

, 1999
Comparing Europa to Earth's size and oceans, this resource tells the story of the Galileo spacecraft's exploration of Europa in the late 1990's, and explains why scientists believe there may be an ocean of water underneath Europa's icy crust. Educational

core  

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

Formation of Low-Centered Ice-Wedge Polygons and Their Orthogonal Systems: A Review

Geosciences
Ice wedges, which are ubiquitous in permafrost areas, play a significant role in the evolution of permafrost landscapes, influencing the topography and hydrology of these regions. In this paper, we combine a detailed multi-generational, interdisciplinary,
Yuri Shur, Benjamin M. Jones, M. Torre Jorgenson, Mikhail Z. Kanevskiy, Anna Liljedahl, Donald A. Walker, Melissa K. Ward Jones, Daniel Fortier, Alexander Vasiliev   +8 more
doaj   +1 more source

Ice Particle Impacts on a Moving Wedge [PDF]

6th AIAA Atmospheric and Space Environments Conference, 2014
This work presents the results of an experimental study of ice particle impacts on a moving wedge. The experiment was conducted in the Adverse Environment Rotor Test Stand (AERTS) facility located at Penn State University. The wedge was placed at the tip of a rotating blade.
Mario M. Vargas, Peter M. Struk, Richard E. Kreeger, Jose Palacios, Kaushik Iyer, Robert E. Gold   +5 more
openaire   +1 more source

Cutaneous Melanoma Drives Metabolic Changes in the Aged Bone Marrow Immune Microenvironment

Aging and Cancer, EarlyView.
Melanoma, the deadliest form of skin cancer, increasingly affects older adults. Our study reveals that melanoma induces changes in iron and lipid levels in the bone marrow, impacting immune cell populations and increasing susceptibility to ferroptosis.
Alexis E. Carey, Murilo Ramos Rocha, Cheyenne Palm, Vania Wang, Denys Balandin, Ethan Black, Kevin Y. Zhang, Fan Huang, Daniel J. Zabransky, Yash Chhabra, Mareike Peters, Gabriel Ghiaur, Ashani Weeraratna   +12 more
wiley   +1 more source

Wedge impact with the influence of ice [PDF]

Applied Ocean Research, 2019
Abstract This work presents a canonical study on a wedge entering water near a single piece of ice using computational-fluid-dynamics (CFD) and a Wagner-type theoretical model with corrections for non-linear effects. Calculations for a series of conditions with ice of different sizes and locations relative to the wedge are conducted. The hydrodynamic
Yang Chen, Tatyana Khabakhpasheva, Kevin J. Maki, Alexander Korobkin   +3 more
openaire   +3 more sources