Results 61 to 70 of about 1,221 (174)

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

Limnology 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, Sam Eggins, Pier van der Merwe, Lennart T. Bach, Philip W. Boyd, Michael J. Ellwood, Andrew R. Bowie, Kathrin Wuttig, Robert F. Strzepek   +8 more
wiley   +1 more source

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

Advanced 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, André Bauer, Jens Freudenberger, Katharina Freiberg, Christina Wüstefeld, Malte Vollmer, Stephanie Lippmann, Thomas Niendorf, Andreas Leineweber, Mario J. Kriegel   +9 more
wiley   +1 more source

A beam monitor based on MPGD detectors for hadron therapy

EPJ 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., Di Benedetto D., Galetta G., Intonti R. A., Mercadante A., Nuzzo S., Verwilligen P.   +6 more
doaj   +1 more source

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

Environmental 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, Emmanuel Chukwuma, Ilan Linshitz, Kosuke Namba, Owen W. Duckworth, Marc A. Cubeta, Oliver Baars   +6 more
wiley   +1 more source

High temperature AlInP X-ray spectrometers

Scientific 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, S. Butera, G. Lioliou, A. B. Krysa, A. M. Barnett   +4 more
doaj   +1 more source

Development of the micro pixel chamber based on MEMS technology

EPJ 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., Takada A., Kishimoto T., Komura S., Kubo H., Matsuoka Y., Miuchi K., Miyamoto S., Mizumoto T., Mizumura Y., Motomura T., Nakamasu Y., Nakamura K., Oda M., Ohta K., Parker J. D., Sawano T., Sonoda S., Tanimori T., Tomono D., Yoshikawa K.   +20 more
doaj   +1 more source

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

PLoS 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, Zhong-ming Qian, Li Zhu, Xiao Mei Wu, Wing-ho Yung, Ting-yuk Tsim, Ya Ke   +6 more
doaj   +1 more source

携带式高分辨合金分析仪的研究

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, 白荣生, 杨明仲, 周新志, 黄艳文, 金建南, 张孝征, 杨吉富   +7 more
doaj  

Early and late effects of 55Fe cytocide [PDF]

British Journal of Cancer, 1975
U Reincke, H Burlington, E P Cronkite, J Laissue   +3 more
openaire   +1 more source

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

PLoS 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, Gunilla Önning, Lena Hulthén   +2 more
doaj   +1 more source