Results 121 to 130 of about 1,387,032 (283)

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine   +7 more
wiley   +1 more source

Climate‐modulated accumulation and erosion of sediments in the Rodderberg crater basin for the last 439 ka (East Eifel Volcanic Field, Germany)

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Glacial/interglacial climate cycles since marine isotope stage (MIS) 12 influenced the discontinuous and 73 m‐long sediment record from the volcanic crater of Rodderberg in the East Eifel Volcanic Field, Germany. High‐resolution grain size and geochemical data have been valued by numerical dating techniques (radiocarbon and luminescence dating,
Bernd Zolitschka   +4 more
wiley   +1 more source

Seaweeds as Nutraceutical Elements and Drugs for Diabetes Mellitus: Future Perspectives

open access: yesMarine Drugs
Diabetes mellitus is a chronic metabolic condition marked by high blood glucose levels caused by inadequate insulin synthesis or poor insulin use.
João Cotas   +5 more
doaj   +1 more source

Rapid Quantification of Fatty Acids in Fish Eggs Through Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Omega‐3 fatty acids (FAs) are important indicators for egg quality. This study uses Raman spectroscopy coupled with chemometrics to develop a rapid and in situ method for predicting FA composition in fish eggs. These findings offer a practical and cost‐effective method for assessing egg FA profiles in aquaculture hatcheries.
Benjamin Panitz   +8 more
wiley   +1 more source

Styrene and its natural analogues: accumulation and sustainable production methods

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Styrene, also known as vinyl benzene, is a colourless, highly volatile petrochemical that serves as a key monomer in the production of polystyrene and styrene‐butadiene rubber. Its industrial synthesis via the alkylation of benzene with ethylene relies on fossil fuels, requiring high temperatures and toxic catalysts that contribute to ...
Mwafaq Ibdah   +6 more
wiley   +1 more source

Circulating Omega‐3 Fatty Acids and Cardiometabolic Outcomes: A Systematic Review of Publications From UK Biobank

open access: yesLipids, EarlyView.
ABSTRACT Studies have shown that omega‐3 fatty acids may protect against cardiovascular diseases (CVDs) and related metabolic conditions. UK Biobank is a large cohort study that includes data on plasma omega‐3 fatty acids at study entry and health outcomes during the follow‐up period.
Warda Tul Firdous, Philip C. Calder
wiley   +1 more source

Sea surface temperatures of the Leeuwin Current in the Capes region of Western Australia: Potential effects on the marine biota of shallow reefs [PDF]

open access: yes, 2009
The Leeuwin and Capes Currents have been shown to influence marine assemblages along the W'estern Australian coast. In this study we examined potential relationships between the sea surface water temperature (SST), as a consequence of the Leeuwin and ...
Huisman, J.   +11 more
core   +1 more source

Storage treatment and diluent cause inconsistencies in commonly used fluorometric microplate enzyme assays conducted with saltmarsh soils

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Fluorometric enzyme assays are a tool for determining potential enzyme activity in soils. A wide array of methodological approaches is adopted by different studies, making comparisons difficult. An important consideration is whether assay conditions replicate the environment of the samples or optimize potential enzyme activity.
Catrina Gore   +4 more
wiley   +1 more source

MusselFinder: Automated dreissenid mussel density estimation via robotic benthic imaging

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Despite the widespread need to map the abundance of invasive quagga and zebra mussels (Dreissena spp.) in lakes and reservoirs worldwide, current methods remain limited by data collection and analysis bottlenecks. Autonomous underwater vehicles (AUVs) combined with machine learning (ML) offer a scalable remote sensing approach for estimating ...
Angus Galloway   +7 more
wiley   +1 more source

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