Results 61 to 70 of about 1,186 (154)

Promoting effects of aluminum addition on chlorophyll biosynthesis and growth of two cultured iron‐limited marine diatoms

open access: yesLimnology and Oceanography, Volume 69, Issue 5, Page 1157-1171, May 2024.
Abstract Aluminum (Al) may play a role in the ocean's capacity for absorbing atmospheric CO2 via influencing carbon fixation, export, and sequestration. Aluminum fertilization, especially in iron (Fe)‐limited high‐nutrient, low‐chlorophyll ocean regions, has been proposed as a potential CO2 removal strategy to mitigate global warming.
Linbin Zhou   +7 more
wiley   +1 more source

High temperature AlInP X-ray spectrometers

open access: yesScientific Reports, 2019
Two custom-made Al0.52In0.48P p+-i-n+ mesa photodiodes with different diameters (217 µm ± 15 µm and 409 µm ± 28 µm) and i layer thicknesses of 6 µm have been electrically characterised over the temperature range 0 °C to 100 °C.
S. Zhao   +4 more
doaj   +1 more source

Characterization of a Southern Ocean deep chlorophyll maximum: Response of phytoplankton to light, iron, and manganese enrichment

open access: yesLimnology and Oceanography Letters, Volume 9, Issue 2, Page 145-154, April 2024.
Abstract Southern Ocean phytoplankton growth is limited by low iron (Fe) supply and irradiance, impacting the strength of the biological carbon pump. Unfavorable upper ocean conditions, such as low nutrient concentrations, can lead to the formation of deep chlorophyll or biomass maxima (DCM/DBM).
Pauline Latour   +8 more
wiley   +1 more source

Thermodynamically Guided Improvement of Fe–Mn–Al–Ni Shape‐Memory Alloys

open access: yesAdvanced Materials, Volume 36, Issue 5, February 1, 2024.
The utilization of a microstructural‐informed thermodynamic model enables the creation of pseudoelastic Fe–Mn–Al–Ni shape‐memory alloys with enhanced reversibility. The feasibility of the proposed alloy‐design strategy is proven by complementary spherical nanoindentation and in situ compression tests.
Alexander Walnsch   +9 more
wiley   +1 more source

A beam monitor based on MPGD detectors for hadron therapy

open access: yesEPJ Web of Conferences, 2018
Remarkable scientific and technological progress during the last years has led to the construction of accelerator based facilities dedicated to hadron therapy.
Altieri P. R.   +6 more
doaj   +1 more source

Inactivation of siderophore iron‐chelating moieties by the fungal wheat root symbiont Pyrenophora biseptata

open access: yesEnvironmental Microbiology Reports, Volume 16, Issue 1, February 2024.
The wheat root symbiont fungus Pyrenophora biseptata degrades iron‐chelating groups in extracellular siderophores, forming weaker and more labile iron complexes. As a result, iron is expected to become available to plants and microbes that do not possess specialized siderophore uptake mechanisms.
Katie S. French   +6 more
wiley   +1 more source

Development of the micro pixel chamber based on MEMS technology

open access: yesEPJ Web of Conferences, 2018
Micro pixel chambers (μ-PIC) are gaseous two-dimensional imaging detectors originally manufactured using printed circuit board (PCB) technology. They are used in MeV gamma-ray astronomy, medicalimaging, neutron imaging, the search for dark matter, and ...
Takemura T.   +20 more
doaj   +1 more source

L-DOPA neurotoxicity is mediated by up-regulation of DMT1-IRE expression.

open access: yesPLoS ONE, 2009
BackgroundThe mechanisms underlying neurotoxicity caused by L-DOPA are not yet completely known. Based on recent findings, we speculated that the increased expression of divalent metal transporter 1 without iron-response element (DMT1-IRE) induced by L ...
Fang Du   +6 more
doaj   +1 more source

Sur le rayonnement de freinage interne du 55Fe

open access: yesJournal de Physique et le Radium, 1953
Pas de Résumé ...
openaire   +2 more sources

Freeze-dried Lactobacillus plantarum 299v increases iron absorption in young females-Double isotope sequential single-blind studies in menstruating women.

open access: yesPLoS ONE, 2017
BackgroundThe probiotic strain Lactobacillus plantarum 299v has earlier been shown to increase iron absorption when added to foods. However, it is not known if the same probiotic strain in a freeze-dried format included in a capsule increases the iron ...
Michael Hoppe   +2 more
doaj   +1 more source

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