Results 151 to 160 of about 1,059 (266)

Increasing Respiration Weakens the Carbon Sink Over Two Decades in a Temperate Deciduous Forest

open access: yesGlobal Change Biology Communications, Volume 1, Issue 3, September 2026.
Using a 20‐year eddy covariance record from a temperate deciduous forest, we show that net carbon uptake declined over two decades. Both the trend and interannual variability in net carbon exchange were respiration driven, with warming winters and increasing late‐summer diffuse light driving the trend in respiration.
Darby D. Bergl   +8 more
wiley   +1 more source

Evaluating the Influence of Injury‐Induced Microstructural Variations on the Efficacy of a Diffusion MRI‐Derived Axon Diameter Surrogate

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 3, Page 1355-1364, September 2026.
ABSTRACT Purpose To investigate the utility of a recently demonstrated diffusion MRI derived axon diameter surrogate measure (∆D⟂) under pathologic conditions induced by a spinal cord injury model. Methods Contusion injuries were performed on the thoracic–lumbar spinal cord of adult male rats.
Hannah E. Alderson   +4 more
wiley   +1 more source

Conformational determinants of glucagon stability and aggregation kinetics in aqueous and commercial formulations

open access: yesProtein Science, Volume 35, Issue 9, September 2026.
Abstract Glucagon is a well‐established therapeutic peptide, widely used to treat hypoglycemia. Like many peptide drugs, it offers advantages such as specificity, biocompatibility, and high affinity for receptor targets, but suffers from limited physical and chemical stability.
Angelo Santoro   +4 more
wiley   +1 more source

Towards Oblique Engagements With ‘Tipping Points’: A Critical Geography for Redirecting Debates

open access: yesTransactions of the Institute of British Geographers, Volume 51, Issue 3, September 2026.
ABSTRACT This intervention brings debates about tipping points into conversation with critical geographical thinking to suggest a more ‘oblique’ engagement with the concept. Such an approach is vital for rethinking the normative discourses and established imaginaries that dominate in the application of ‘tipping’ to understandings of environmental ...
Rachael Squire   +3 more
wiley   +1 more source

Hybrid quantum network for sensing in the acoustic frequency range. [PDF]

open access: yesNature
Novikov V   +8 more
europepmc   +1 more source

A New Lidar‐Based Observational Estimate for a Short‐Term Longwave High‐Cloud Feedback

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract High clouds play a substantial role in modulating the Earth's top‐of‐atmosphere radiative energy budget. Models project that changes in high‐cloud altitude and area in response to warming will have a net warming effect within the tropics. Yet, to our knowledge, a robust global observational constraint of a short‐term cloud feedback associated ...
J. A. Pilewskie   +3 more
wiley   +1 more source

The Influence of Aged Smoke on Urban Ozone: Aircraft Measurements in Chicago During the 2023 Canadian Wildfires

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract As large wildfires become more frequent and severe in North America due to heightened fuel aridity and fire weather conditions driven by anthropogenic climate change, wildfire smoke has an increasingly important influence on air quality. Transported smoke can impact urban boundary layer ozone (O3) directly, via the entrainment of O3 formed in ...
W. S. Chace   +41 more
wiley   +1 more source

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