Results 171 to 180 of about 55,312 (267)

Inter‐ and Intra‐Rater Reliability of 4D‐CT Versus Bronchoscopy in Diagnosing and Grading Tracheomalacia

open access: yesThe Laryngoscope, EarlyView.
Bronchoscopy and 4D‐CT are used to grade tracheomalacia severity, though reliability across raters and specialties has been unclear. In this multi‐institutional, multidisciplinary survey study, endoscopic assessment showed higher inter‐ and intra‐rater reliability than 4D‐CT, though both modalities demonstrated substantial‐to‐almost‐perfect agreement ...
Hannah F. Case   +9 more
wiley   +1 more source

Divergent Blue Carbon Trajectories in the Yellow River Delta Post‐1976 Diversion: Hydrological Stability and Human Disturbance Contrasts Revealed by Multi‐Source Remote Sensing (1984–2023)

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Coastal wetlands are critical blue carbon sinks, yet their spatiotemporal dynamics under environmental change remain insufficiently quantified. Taking the Yellow River Delta (YRD) as a natural laboratory, this study synthesizes multi‐source remote sensing data, including optical and radar imagery spanning from 1984 to 2023, to explore the ...
Mengqian Jiang   +6 more
wiley   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix   +10 more
wiley   +1 more source

Observing the tidal pulse of rivers from wide-swath satellite altimetry. [PDF]

open access: yesNature
Hart-Davis MG   +8 more
europepmc   +1 more source

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop   +5 more
wiley   +1 more source

Human footprint on estuarine tidal hydrodynamics. [PDF]

open access: yesNat Geosci
Beemster JGW   +7 more
europepmc   +1 more source

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias   +6 more
wiley   +1 more source

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