Results 81 to 90 of about 1,946 (206)

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

Determination of Trace 55Fe and 63Ni in Steel Samples via Liquid Scintillation Counting

open access: yes
In the decommissioning of nuclear facilities, activated steel often contains radionuclides such as 55Fe and 63Ni, which are categorized as hard-to-measure due to their emission of only low-energy beta particles or X-rays.
Giuseppe Augusto Marzo   +3 more
core   +1 more source

SPECTROSCOPIE DE 51Cr, 53Mn, 55Fe, 59Ni, 59Cu, 61Cu, 65Zn PAR TEMPS-DE-VOL DES NEUTRONS

open access: yes, 1968
A l'aide du faisceau pulsé de protons du Van de Graaff de 5,5 MeV du laboratoire d'Oak Ridge, les niveaux de 51Cr, 53Mn, 55Fe, 59Ni et 65Cu ont été étudiés par temps-de-vol des neutrons des réactions (p, n) sur 51V, 53Cr, 55Mn, 59Co et 65Zn.
K. DICKENS   +4 more
core   +1 more source

Al0.52In0.48P 55Fe x-ray-photovoltaic battery

open access: yes, 2016
An Al0.52In0.48P 55Fe radioisotope microbattery is demonstrated over the temperature range -20 °C to 160 °C. Al0.52In0.48P p+-i-n+ mesa structures were used to collect the photons from a 238 MBq 55Fe radioisotope x-ray source.
A B Krysa (16037315)   +3 more
core  

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

STANDARDIZATION OF 201Tl AND 55Fe RADIONUCLIDES IN A 4(PC)-NaI(Tl) COINCIDENCE SYSTEM

open access: yes, 2008
No presente trabalho foi desenvolvido o método de padronização de radionuclídeos produzidos em cíclotrons utilizando o sistema de coincidências 4(PC)-NaI(Tl) composto de um contador proporcional operando a 0,1 MPa. Os radionuclídeos selecionados, foram o
Carlos Augusto Pires   +1 more
core   +1 more source

携带式高分辨合金分析仪的研究

open access: yes四川大学学报. 自然科学版, 1996
介绍了用Si(Li)探测器作探头的携带式高分辨合金分析仪的结构原理和实测结果.其仪器的分析范围可覆盖Ag,Cd,Sn,Sb,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Se,Hf,Au,Ta,W,Pb,Bi,Zr,Nb和Mo等元素.采用109Cd和55Fe作激发源,由笔记本式计算机与电子插件所组成的计算机多道分析系统,实现数据的采集和显示、元素间干扰效应的修正 ...
温良弼   +7 more
doaj  

AlGaAs 55Fe X-ray radioisotope microbattery

open access: yes, 2016
This paper describes the performance of a fabricated prototype Al0.2Ga0.8As 55Fe radioisotope microbattery photovoltaic cells over the temperature range -20 °C to 50 °C.
Michael Whitaker (4466461)   +3 more
core   +1 more source

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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