Results 11 to 20 of about 58,594 (258)

Optimised Fermentation Production of Radiolabelled Ochratoxin A by Aspergillus ochraceus with Maximum 14C in the Pentaketide Moiety for Exploring Its Rat Renal Toxicology

open access: yesToxins, 2023
In the context of the mysterious Balkan endemic nephropathy of the 1900s, and the discovery in the 1960s of the potent mycotoxin ochratoxin A, experimental research projects sought to explore any inter-relationship.
Peter Mantle
doaj   +1 more source

Recycling of continental crust materials: Geochemical constraints from post-collisional alkaline intrusive rocks in the Dabie orogen

open access: yesFrontiers in Earth Science, 2023
Post-collisional alkaline intrusive rocks from the Dabie orogen were studied for their whole-rock major-trace elements and Sr-Nd-Hf-Pb isotopes, as well as zircon U-Pb ages and Hf-O isotopes.
Guo-Chao Sun   +8 more
doaj   +1 more source

Mantle Plumes and Mantle Sources [PDF]

open access: yesScience, 1992
Basalts from many ocean islands define elongate arrays in Sr-Nd-Pb isotopic space; these likely reflect the dominance of binary mixing of mantle sources in intraplate volcanism. S. R. Hart et al. (1) observe that when these arrays are projected onto a ternary diagram bounded by mantle end-members DMM [depleted mid-ocean ridge basalt (MORB) mantle ...
K A, Farley, H, Craig
openaire   +3 more sources

Comparative Ergot Alkaloid Elaboration by Selected Plectenchymatic Mycelia of Claviceps purpurea through Sequential Cycles of Axenic Culture and Plant Parasitism

open access: yesBiology, 2020
Ergot alkaloids have an established place in plant pathology and toxicology. As pharmaceuticals, their sourcing is via natural or managed agricultural occurrence of sclerotia of Claviceps purpurea (Fr.) Tul.
Peter Mantle
doaj   +1 more source

From Continent to Ocean: Investigating the Multi-Element and Precious Metal Geochemistry of the Paraná-Etendeka Large Igneous Province Using Machine Learning Tools

open access: yesEarth Science, Systems and Society, 2021
Large Igneous Provinces, and by extension the mantle plumes that generate them, are frequently associated with platinum-group element (PGE) ore deposits, yet the processes controlling the metal budget in plume-derived magmas remains debated.
J. J. Lindsay   +4 more
doaj   +1 more source

Transcriptome and digital gene expression analysis reveal immune responses of mantle and visceral mass pearl culturing in Hyriopsis cumingii

open access: yesFrontiers in Marine Science, 2023
Biomineralization is a widespread phenomenon in marine mollusks and is responsible for the production of shells and pearls. However, the regulatory mechanisms governing the adaptive immune responses in the mollusk mantle and visceral mass during ...
Xiaoya Shen   +21 more
doaj   +1 more source

Slipper Limpet (Crepidula fornicata) Shells Support In Vitro Osteogenesis of Human Adipose-Derived Stem Cells

open access: yesMarine Drugs, 2023
This study aimed to investigate a cost-effective alternative to man-made calcium phosphate ceramics for treating bone defects. The slipper limpet is an invasive species in European coastal waters, and its shells composed of calcium carbonate could ...
Arianna De Mori   +3 more
doaj   +1 more source

Nasal Decolonisation of MRSA

open access: yesAntibiotics, 2019
The recent demonstration for the first time of urinary monic acid A as a clinical urinary biomarker of exposure to intra-nasal mupirocin during medication for methicillin-resistant Staphylococcus aureus (MRSA) offers a way of verifying adherence to the ...
Peter Mantle
doaj   +1 more source

Calmodulin regulates the calcium homeostasis in mantle of Crassostrea gigas under ocean acidification

open access: yesFrontiers in Marine Science, 2022
The biosynthesis of shell is a complicated calcification process in the marine bivalve, which can be severely impacted by ocean acidification (OA). Calmodulin (CaM) is a pivotal calcium regulator and thought to be crucial for calcification.
Xiaoyu Xin   +25 more
doaj   +1 more source

The Origin of Earth's Mantle Nitrogen: Primordial or Early Biogeochemical Cycling?

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Earth's mantle nitrogen (N) content is comparable to that found in its N‐rich atmosphere. Mantle N has been proposed to be primordial or sourced by later subduction, yet its origin has not been elucidated.
H. Kurokawa   +7 more
doaj   +1 more source

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