Results 161 to 170 of about 53,515 (307)

Tuning adsorption and morphology in poly(glutamic acid) via controlled acidic partial deprotection

Polymer International, EarlyView.
Partial deprotection of poly(glutamic acid) generates morphologies and assemblies that match fully deprotected polypeptides in small‐molecule adsorption, extending to block copolypeptides with pH‐dependent effects. Abstract Synthetic polypeptides prepared from N‐carboxyanhydride (NCA) monomers are important platforms for environmental and medical ...
Hunter Wood, Stella Trickett, Joseph Dosch, Farin Weinger, Dan Flaherty, Stefanie Sydlik   +5 more
wiley   +1 more source

Subglacial water flow and ice dynamics during glacial lake outburst floods observed from space. [PDF]

Nat Commun
Magnússon E, Drouin V, Pálsson F, Jóhannesson T, Belart JMC, Wuite J, Tolpekin V, Hannesdóttir K, Berthier E, Sigurðsson G, Einarsson B, Ófeigsson BG, Nagler T, Gudmundsson MT, Högnadóttir T.   +14 more
europepmc   +1 more source

New Constraints on the Timing and Pattern of Deglaciation in the Húnaflói Bay Region of Northwest Iceland Using Cosmogenic 36CA Dating and Geomorphic Mapping

, 2017
Understanding the evolution and timing of changes in ice sheet geometry and extent in Iceland during the Last Glacial Maximum (LGM) and subsequent deglaciation continues to stimulate much active research.
Finkel, Robert C., Houts, Amanda N., Licciardi, Joseph M., Principato, Sarah M., Zimmerman, Susan H.   +4 more
core  

Permafrost Distribution in the Canadian Rockies: Key Variables Influencing Patch‐Scale Variability

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The spatial distribution of permafrost in mountainous regions is influenced by various factors such as topography, climate, vegetation, and substrate. Despite the existence of comprehensive permafrost maps at national and global levels, they fail to accurately represent the patch‐scale (e.g., < 25 m) permafrost distribution in characteristic ...
Gerardo Zegers, Masaki Hayashi, Pablo A. Mendoza   +2 more
wiley   +1 more source

Rapid ice-marginal lake growth in Alaska driven by glacier retreat through bed overdeepenings. [PDF]

Proc Natl Acad Sci U S A
McGrath D, Sass L, Armstrong WH, Florentine C, McCoy SW.   +4 more
europepmc   +1 more source

Spatial Variability of Permafrost and Active Layer Thickness in a Forested Hillslope of the Taiga Shield

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath, Christopher Spence, Andrew Ireson   +2 more
wiley   +1 more source

Ice-marginal proglacial lakes enhance outlet glacier velocities across Greenland. [PDF]

Commun Earth Environ
Harpur CM, Smith MW, Carrivick JL, Quincey DJ, Taylor L.   +4 more
europepmc   +1 more source

A Statistical‐Process Hybridized Approach to Modeling Permafrost Distribution in a Boreal Wetland Ecosystem, Whatì, NT, Canada

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT High‐resolution mapping of permafrost in ecologically and topographically complex landscapes remains a major challenge. Existing models of permafrost extent often rely on equilibrium assumptions, which can misrepresent conditions in regions where permafrost persists largely due to ecosystem structure.
Philip P. Bonnaventure, Sophie MacLean, Nick C. Noad, Madeleine C. Garibaldi   +3 more
wiley   +1 more source

Remote sensing and process attribution uncertainties in the Dharali event. [PDF]

NPJ Nat Hazards
Bhardwaj A, Sam L, Ali SN, Ahmed R.
europepmc   +1 more source

Animating blossom: Time‐lapse to encourage plant awareness in the YouTube era

PLANTS, PEOPLE, PLANET, EarlyView.
Time‐lapse videos can effectively capture key traits of flower blossoms, such as color, 3D structure, and temporal changes, making them valuable complements to herbarium specimens and other botanical collections. Despite the abundance of such videos on YouTube, most provide no ecological and botanical insights.
Tae Kyung Yoon
wiley   +1 more source