Insights into constraining coastal carbon export from radioisotopes
Coastal shelves are important regions for carbon transformation and storage, however, constraining coastal carbon budgets and their uncertainties remains a challenge. Repeated sampling of a semi-restricted coastal basin in Nova Scotia, Canada was performed in 2019 utilizing the 238U-234Th isotope system to estimate carbon flux in both the water column ...
Erin E. Black +4 more
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We present a nuclear medical imaging technique, employing triple-gamma trajectory intersections from beta^+ - gamma coincidences, able to reach sub-millimeter spatial resolution in 3 dimensions with a reduced requirement of reconstructed intersections ...
Habs, D. +3 more
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Novel reverse radioisotope labelling experiment reveals carbon assimilation of marine calcifiers under ocean acidification conditions [PDF]
Abstract Ocean acidification by anthropogenic carbon dioxide emissions is projected to depress metabolic and physiological activity in marine calcifiers. To evaluate the sensitivity of marine organisms against ocean acidification, the assimilation of nutrients into ...
Kozue Nishida +9 more
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Stem Cell Imaging: Tools to Improve Cell Delivery and Viability. [PDF]
Stem cell therapy (SCT) has shown very promising preclinical results in a variety of regenerative medicine applications. Nevertheless, the complete utility of this technology remains unrealized. Imaging is a potent tool used in multiple stages of SCT and
Jokerst, Jesse V, Wang, Junxin
core +3 more sources
Development and characterization of carbon-bonded carbon fiber insulation for radioisotope space power systems [PDF]
The General-Purpose Heat Source (GPHS), an improved radioisotope heat source, employs a unique thermal insulation material, carbon-bonded carbon fiber (CBCF), to protect the fuel capsule and to help achieve the highest possible specific power. The CBCF insulation is made from chopped rayon fiber about 10 ..mu..m in diameter and 250 ..mu..m long, which ...
Wei, G. C., Robbins, J. M.
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Chronologies for Recent Peat Deposits Using Wiggle-matched Radiocarbon Ages: Problems with Old Carbon Contamination [PDF]
Dating sediments which have accumulated over the last few hundred years is critical to the calibration of longer-term paleoclimate records with instrumental climate data.
Charman, D.J., Garnett, M.H.
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Isotopes in hydrology and hydrogeology [PDF]
The structure, status, and processes of the groundwater system, which can only be acquired through scientific research efforts, are critical aspects of water resource management. Isotope hydrology and hydrogeology is a genuinely interdisciplinary science.
Barbieri, Maurizio
core +1 more source
Species sensitivity of zeolite minerals for uptake of mercury solutes [PDF]
The uptake of inorganic Hg2+ and organometallic CH3Hg+ from aqueous solutions by 11 different natural zeolites has been investigated using a batch distribution coefficient (Kd) method and supported by a preliminary voltammetric study.
A. Chimedtsogzol +13 more
core +2 more sources
The unreasonable effectiveness of experiments in constraining nova nucleosynthesis [PDF]
Classical nova explosions arise from thermonuclear ignition in the envelopes of accreting white dwarfs in close binary star systems. Detailed observations of novae have stimulated numerous studies in theoretical astrophysics and experimental nuclear ...
Parikh, Anuj Ramesh
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Removal of radioisotopes in solution and bactericidal/bacteriostatic sterilising power in activated carbon and metal silver filters [PDF]
Activated carbon filters play an important role in water filtration and purification from contaminants of different origin. Their limit consists in bacterial proliferation, which may occur only during prolonged periods of non-use and in their ability to remove radioactive contaminants present in waste water from Industry or Nuclear Medicine departments.
C. Maioli +4 more
openaire +2 more sources

