Results 41 to 50 of about 14,761 (290)

Radiocarbon reservoir effects in human bone collagen from northern Iceland [PDF]

, 2012
Human bone collagen from a series of Icelandic human pagan graves was radiocarbon (14C) dated to aid understanding of early settlement (landnám) chronologies in northern Iceland. These individuals potentially consumed marine protein.
Dugmore, A.J., Cook, G.T., McGovern, T.H., Church, M.J., Ascough, P.L., Gestsdóttir, H., Friðriksson, A., Edwards, K.J., Dunbar, E.   +8 more
core   +1 more source

Iron Composition of a Typical Loess-Paleosol Sequence in Northeast China

Agronomy
Iron isotope compositions, along with the partial extraction of iron in its various forms, can be utilized to investigate the complex interplay of iron migration and transformation with respect to iron isotope patterns.
Zhong-Xiu Sun, Si-Wei Liu, Ying-Ying Jiang   +2 more
doaj   +1 more source

Use of Ra isotopes to deduce rapid transfer of sediment-derived inputs off Kerguelen [PDF]

Biogeosciences, 2015
The Southern Ocean is known to be the largest high-nutrient, low-chlorophyll (HNLC) region of the global ocean due to iron limitation. However, a large phytoplankton bloom develops annually downstream of the Kerguelen Islands, a bloom which is sustained ...
V. Sanial, P. van Beek, B. Lansard, M. Souhaut, E. Kestenare, F. d'Ovidio, M. Zhou, S. Blain   +7 more
doaj   +1 more source

Abundances of stable iron isotopes used in the experiment (%). [PDF]

, 2016
Abundances of stable iron isotopes used in the experiment (%).
Jun Wang (5906), Lichen Yang (1804036), Yuhui Zhang (399617), Zhengwu Huang (2621983), Xiaoguang Yang (285522), Tongxiang Ren (2457844), Zhilin Wang (466895), Lingyan Gou (2621989), Jianhua Piao (2621986)   +8 more
core   +1 more source

Iron incorporation and post-malaria anaemia. [PDF]

PLoS ONE, 2008
Iron supplementation is employed to treat post-malarial anaemia in environments where iron deficiency is common. Malaria induces an intense inflammatory reaction that stalls reticulo-endothelial macrophagal iron recycling from haemolysed red blood cells ...
Conor P Doherty, Sharon E Cox, Antony J Fulford, Steven Austin, David C Hilmers, Steven A Abrams, Andrew M Prentice   +6 more
doaj   +1 more source

A freshwater diet-derived 14C reservoir effect at the Stone Age sites in the Iron Gates gorge [PDF]

, 2001
Human bones from single inhumation burials and artifacts made from terrestrial mammal (ungulate) bone found in direct association with the skeletons were obtained from the Stone Age site of Schela Cladovei situated just below the Iron Gates Gorge of the ...
McSweeney, Kathleen, Hedges, Robert, Pettitt, Paul B., Bonsall, C., Boroneanț, Vasile, Cook, Gordon, Pettitt, Paul, Bonsall, Clive, Hedges, Robert E. M., Cook, Gordon T., McSweeney, K., Boronean, V.   +11 more
core   +1 more source

Bulk properties of iron isotopes [PDF]

Physics of Atomic Nuclei, 2007
Nuclear level densities and radiative strength functions (RSFs) in 56Fe and 57Fe were measured using the 57Fe(3He, αγ) and 57Fe(3He, 3He′γ) reactions, respectively, at the Oslo Cyclotron Laboratory. A low-energy enhancement in the RSF below 4-MeV energy was observed. This finding cannot be explained by common theoretical models. In a second experiment,
Algin, E., Schiller, A., Voinov, A., Agvannluvsan, U., Belgya, T., Bernstein, L., Brune, C., Chankova, R., Garrett, P., Grimes, S., Guttormsen, M., Hjorth-Jensen, M., Hornish, M., Johnson, C., Massey, T., Mitchell, G., Rekstad, J., Siem, S., Younes, W.   +18 more
openaire   +1 more source

Iron absorption from supplements is greater with alternate day than with consecutive day dosing in iron-deficient anemic women

Haematologica, 2020
In iron-depleted women without anemia, oral iron supplements induce an increase in serum hepcidin (SHep) that persists for 24 hours, decreasing iron absorption from supplements given later on the same or next day.
Nicole U. Stoffel, Christophe Zeder, Gary M. Brittenham, Diego Moretti, Michael B. Zimmermann   +4 more
doaj   +1 more source

Human and faunal stable and radiogenic isotope data from four Bahraini and three Jordanian assemblages c. 5300 B.C. to 1500 AD

Data in Brief, 2021
This dataset presents carbon, nitrogen, oxygen (carbonates and phosphates) and strontium data from human and faunal remains from that portion of seven assemblages from Jordan and Bahrain currently curated at the Smithsonian Institution's National Museum ...
Damien Huffer
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source