Results 231 to 240 of about 278,549 (360)

Carbon, Nitrogen, and Corresponding Stable Isotope Signatures Reveal Channel Banks as Major Sediment Sources in a Tropical Agricultural Watershed

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Uncertainties about the applicability of δ13C and δ15N as tracers of sediment sources in tropical river basins highlight the need for more in‐depth investigations of these isotopes. This study therefore assessed the effectiveness of δ13C and δ15N signatures in discriminating sediment sources in an agricultural catchment in Northeast Brazil ...
Fábio Farias Amorim   +10 more
wiley   +1 more source

Predicting potential Arctic kelp distribution and lower‐depth biomass from seafloor irradiance

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Kelps have an extensive distribution in Arctic coastal waters. However, quantifying their role in the Arctic food web and carbon cycle is challenged by the scarcity of documented geographical distribution, standing stocks and production. Here we present a framework based on an empirical function to predict the potential kelp distribution and ...
Laura Castro de la Guardia   +13 more
wiley   +1 more source

Is Dysphagia in Multiple System Atrophy Responsive to Levodopa? Results from a Retrospective Study

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Dysphagia remains a major clinical concern in multiple system atrophy (MSA), and so far, lacks relevant treatment options. Objective To systematically assess levodopa‐responsiveness of dysphagia in MSA. Methods 19 MSA‐patients underwent endoscopic swallowing evaluation in Off‐ and On‐state, following an adapted FEES‐levodopa‐test ...
Florin Gandor   +10 more
wiley   +1 more source

Dose‐Dependent Effects of Biochar on Soil Revealed by Fast Field‐Cycling (FFC) NMR: From Molecular Water Dynamics to Soil Functionality

open access: yesMagnetic Resonance in Chemistry, EarlyView.
Dose–response of biochar in a clay soil: fifteen mixtures (fBC 0–1) reveal nonlinear thresholds (pH/EC) and sharp WHC gains near fBC ≈ 0.3–0.5. Coupled FT‐IR and FFC‐NMR (0.01–10 MHz; ModelFree τc distributions) link water dynamics to soil functionality.
Calogero Librici   +6 more
wiley   +1 more source

A water balance model of the Upper Blue Nile in Ethiopia [PDF]

open access: yes, 2010
Barrett C. B.   +22 more
core   +1 more source

Community‐based marine restoration to generate social licence and ecological knowledge for upscaling oyster reef restoration

open access: yesPeople and Nature, EarlyView.
Abstract Community‐led restoration operates at the intersection of ecological feasibility and social acceptability. In the marine realm, restoration is challenging due to gaps in ecological knowledge on how and where to restore lost ecosystems and limited public engagement that provides social licence for restoration.
Nichole Lindsey   +3 more
wiley   +1 more source

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