Results 171 to 180 of about 125,890 (374)

Permafrost and related engineering problems in Alaska [PDF]

open access: bronze, 1969
Oscar J. Ferrians   +2 more
openalex   +1 more source

Chemogenetic Control of Striatal Astrocytes Improves Parkinsonian Motor Deficits in Mice

open access: yesGlia, Volume 73, Issue 6, Page 1188-1202, June 2025.
Main Points Dopamine depletion reduces locomotion‐induced calcium activity in dorsal striatal astrocytes. Chemogenetic activation facilitates astrocyte locomotion responses and improves motor behavior in dopamine lesioned animals. ABSTRACT Parkinson's disease (PD) is characterized by the degeneration of dopaminergic nigrostriatal inputs, which causes ...
Wesley R. Evans   +7 more
wiley   +1 more source

A multi-scale vision transformer-based multimodal GeoAI model for mapping Arctic permafrost thaw [PDF]

open access: yesarXiv
Retrogressive Thaw Slumps (RTS) in Arctic regions are distinct permafrost landforms with significant environmental impacts. Mapping these RTS is crucial because their appearance serves as a clear indication of permafrost thaw. However, their small scale compared to other landform features, vague boundaries, and spatiotemporal variation pose significant
arxiv  

A critique of the apocalyptic climate narrative

open access: yes
Journal of Applied Corporate Finance, EarlyView.
Harry DeAngelo, Judith A. Curry
wiley   +1 more source

Forecasting climate and human alterations to coastal and estuarine dissolved organic matter

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 3, Page 265-286, June 2025.
Abstract River networks serve as conduits for dissolved organic matter (DOM) and carbon (DOC) from inland to coastal waters. Human activities and climate change are altering DOM sources, causing hydrological and biogeochemical shifts that impact DOC concentrations and changing the transport and transformation of DOM and DOC. Here, we synthesize current
Liz D. Ortiz Muñoz, John S. Kominoski
wiley   +1 more source

Large‐scale hydro‐climatology of the terrestrial Arctic drainage system [PDF]

open access: yes, 2002
The large‐scale hydro‐climatology of the terrestrial Arctic drainage system is examined, focusing on the period 1960 onward. Special attention is paid to the Ob, Yenisey, Lena, and Mackenzie watersheds, which provide the bulk of freshwater discharge to ...
Bromwich, David H.   +5 more
core   +1 more source

Nearshore Hydrodynamics and Sediment Dispersal Along Eroding Permafrost Coasts—Insights From Acoustic Doppler Current Profiler Measurements Around Herschel Island–Qikiqtaruk (Yukon, Canada)

open access: yesPermafrost and Periglacial Processes, Volume 36, Issue 2, Page 205-216, April/June 2025.
ABSTRACT Permafrost coasts are eroding at an accelerating pace, delivering vast amounts of sediments, organic matter, nutrients, and pollutants into the Arctic Ocean. These fluxes play a crucial role in the coastal biogeochemical cycle, yet their magnitude, as well as the trajectory and fate of the eroded material, is largely unknown.
Justus Gimsa   +2 more
wiley   +1 more source

PixelDINO: Semi-Supervised Semantic Segmentation for Detecting Permafrost Disturbances [PDF]

open access: yesarXiv
Arctic Permafrost is facing significant changes due to global climate change. As these regions are largely inaccessible, remote sensing plays a crucial rule in better understanding the underlying processes not just on a local scale, but across the Arctic.
arxiv  

A Multimethod Investigation of the Lake Agnes Rock Glacier, Colorado, USA

open access: yesPermafrost and Periglacial Processes, Volume 36, Issue 2, Page 217-229, April/June 2025.
ABSTRACT Rock glaciers are important headwater landforms that play a key role in alpine hydrology. North American rock glaciers are estimated to contain the third largest water volume equivalent globally, and over 3800 rock glaciers have been mapped in Colorado alone. However, these features are often overlooked in alpine water budgets.
Brianna Rick   +5 more
wiley   +1 more source

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