Results 21 to 30 of about 2,933,285 (111)

Determining soil erosion rates on a grazed Australian hillslope: Comparison of two landform evolution models with field‐based methods

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 7, July 2026.
Erosion rates were quantified using field methods (137Cs, sediment loading) and two landform evolution models (LEMs), SIBERIA and SSSPAM, on a grazed catchment analogous to nearby mining sites, filling the gap in field data comparisons. Model estimates aligned with field data, demonstrating both LEMs' predictive potential for erosion in grazed ...
Indishe P. Senanayake   +2 more
wiley   +1 more source

Visualizing and Quantifying microRNA‐Induced DNA Origami Separation at the Nanoscale

open access: yesAngewandte Chemie, Volume 138, Issue 17, 20 April 2026.
Clinically relevant miRNA biomarkers trigger the disassembly of DNA origami dimers into monomers through a toehold‐mediated strand displacement reaction. High‐speed AFM was used to visualize this reaction in real time, while solid‐state nanopore measurements quantified the populations of dimers and monomers, as well as the resulting miRNA concentration,
Chalmers C. C. Chau   +4 more
wiley   +2 more sources

Multiproxy Chronologies of the Hurd Rock Glacier (Livingston Island, South Shetland Islands, Maritime Antarctica): Between the Late‐Stage Stabilization and Flow Deceleration

open access: yesPermafrost and Periglacial Processes, Volume 37, Issue 3, Page 535-550, July/September 2026.
ABSTRACT The Hurd Rock Glacier, located on Livingston Island (South Shetland Islands archipelago, Maritime Antarctica), is a tongue‐shaped feature composed of angular boulders, displaying transverse ridges and furrows, and featuring lobate structures, which are more prominently developed in its frontal sector.
Rosana Menéndez‐Duarte   +5 more
wiley   +1 more source

On the Discorhabdins Leading to the Aleutianamine Ring System: A One‐Step in Situ Transformation Characterized Through Computational and Experimental Studies and Its Implications on Biosynthesis, Synthesis, and Pharmacology

open access: yesAngewandte Chemie, Volume 138, Issue 17, 20 April 2026.
The thiocarbenium ion rearrangement of 3‐dihydrodisorhabdin B greatly increases the recovery of aleutianamine from Latrunculia spp., a pyrroloiminoquinone natural product with potent activity against drug‐resistant cancers, collected from the deep‐ocean along the Aleutian Islands.
Cody F. Dickinson   +13 more
wiley   +2 more sources

Biocompatible Hydrogenated Graphene Interfaces Promote Axonal Regeneration

open access: yesSmall Structures, Volume 7, Issue 7, July 2026.
Hydrogenated graphene promotes neuronal regrowth and network reconnection after injury while minimizing astroglial activation, unlike pristine graphene. The findings reveal how atomic‐scale surface chemistry governs neural repair, establishing functionalized graphene as a promising platform for neuroregenerative interfaces.
Martina Trevisani   +14 more
wiley   +1 more source

Soil Carbon Saturation Constrains Long‐Term Sequestration Under Revegetation on China's Loess Plateau

open access: yesEarth's Future, Volume 14, Issue 7, July 2026.
Abstract Revegetation can enhance soil organic carbon (SOC) sequestration and contribute to climate change mitigation, yet the mechanism controlling long‐term sequestration remain insufficiently resolved, particularly with respect to particulate organic carbon (POC), mineral‐associated organic carbon (MAOC), and carbon saturation deficit (CSD).
Xilong Zhang   +5 more
wiley   +1 more source

Minimal Perturbation of the Global Mercury Cycle by the Paraná–Etendeka Large Igneous Province (PE–LIP) During the Onset of the Valanginian Weissert Event

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract The Valanginian positive carbon isotope excursion (Weissert Event, ca. 135 million years ago) documents a major global carbon cycle and climate perturbation. Radioisotopic dating suggests that this event was broadly contemporaneous with an interval of profoundly enhanced volcanic activity during the emplacement of the Paraná–Etendeka Large ...
K. Krishnaswamy   +7 more
wiley   +1 more source

Deterministic Theories

open access: yesPhilosophy and Phenomenological Research, Volume 113, Issue 1, Page 134-152, July 2026.
ABSTRACT Determinism is (roughly) the thesis that the past determines the future. But efforts to define it precisely have exposed deep methodological disagreements. Standard possible‐worlds formulations of determinism presuppose an “agreement” relation between worlds, but this relation can be understood in multiple ways, none of which is particularly ...
Hans Halvorson   +2 more
wiley   +1 more source

Modeling longitudinal changes in maximal-intensity exercise performance in young male rowing athletes. [PDF]

open access: yes, 2012
The purpose of the current study was to examine the effect of age and body size upon maximal-intensity exercise performance in young rowing athletes. Male participants (n = 171) aged 12-18 years were assessed using an "all-out" 30-s rowing ergometer test,
Markovic, Goran   +3 more
core   +3 more sources

WSB.APP/PS1 mice develop age‐dependent cerebral amyloid angiopathy, cerebrovascular dysfunction, and white matter deficits

open access: yesAlzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Cerebrovascular deficits, including cerebral amyloid angiopathy (CAA), play a key role in Alzheimer's disease (AD) pathogenesis. Here, we characterize the susceptibility of the WSB/EiJ genetic context to human AD‐relevant cerebrovascular phenotypes. METHODS CAA and parenchymal plaque analysis and in vivo neurovascular imaging were
Olivia J. Marola   +17 more
wiley   +1 more source

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