Results 31 to 40 of about 403,912 (359)

Distribution of heavy metals in sediments of Igbede, Ojo and Ojora rivers of Lagos, Nigeria [PDF]

, 2006
The distribution of some heavy metals, namely Cd, Pb, Zn, Fe, Cu, Cr and Mn in epipellic sediments of Igbede, Ojo and Ojora rivers of Lagos was studied weekly in the early summer (November) of 2003.
Adekoya , J. A, Ayejuyo, O. O, Williams, Akan B.   +2 more
core   +1 more source

The concentrations of trace metals in plants from phosphogypsum waste heap in Wiślinka, northern Poland

E3S Web of Conferences, 2013
The aim of this work was determination of trace metals (Pb, Zn, Ni, Cu and Fe) in different plants collected in the vicinity of phosphogypsum waste heap in Wiślinka (northern Poland). The concentrations of trace metals were determined by two methods: AAS
Boryło A., Nowicki W., Skwarzec B., Olszewski G.   +3 more
doaj   +1 more source

Nanocomposites for Electrochemical Sensors and Their Applications on the Detection of Trace Metals in Environmental Water Samples

Sensors, 2020
The elevated concentrations of various trace metals beyond existing guideline recommendations in water bodies have promoted research on the development of various electrochemical nanosensors for the trace metals’ early detection. Inspired by the exciting
Tshimangadzo S. Munonde, Philiswa N. Nomngongo   +1 more
doaj   +1 more source

‘Brine Management through brine mining of trace metals’ for developing Secondary sources of nuclear fuel

Nuclear Engineering and Technology, 2023
The brine and seawater are important and largely untapped sources of critical trace metals and elements. The coupling of selective recovery of trace metals from seawater/brine with desalination plants gives an added advantage of energy credits to ...
T.L. Prasad
doaj   +1 more source

Levels of trace metals and their impact on oocyte: A review

Taiwanese Journal of Obstetrics & Gynecology
Trace metals play a vital role in a variety of biological processes, but excessive amounts can be toxic and are receiving increasing attention. Trace metals in the environment are released from natural sources, such as rock weathering, volcanic eruptions,
Ping-Ping Zhang, Gui-Chun Ding, Chen-Yue Tao, Lei Zhang, Yi-Xiong Wang, Qiu-Yue Yuan, Sheng-Min Zhang, Li-Ping Wang   +7 more
doaj   +1 more source

Data of OECD soil and leachate resulting from irrigation with aqueous solution containing trace metals at increasing sodium concentration

Data in Brief, 2019
The accumulation of trace metals in soils is one of the main drawbacks when reclaimed waters are used as irrigation sources in agriculture. Such secondary water sources often also contain high levels of salinity and in detail sodium.
Ludovico Pontoni, Marco Race, Eric D. van Hullebusch, Massimiliano Fabbricino, Giovanni Esposito, Francesco Pirozzi   +5 more
doaj   +1 more source

Neutron-activation analysis applied to copper ores and artifacts [PDF]

, 1970
Neutron activation analysis is used for quantitative identification of trace metals in copper. Establishing a unique fingerprint of impurities in Michigan copper would enable identification of artifacts made from this ...
Linder, N. F.
core   +1 more source

Influence of trace metal release from volcanic ash on growth of Thalassiosira pseudonana and Emiliania huxleyi [PDF]

, 2012
Recent studies demonstrate that volcanic ash has the potential to increase phytoplankton biomass in the open ocean. However, besides fertilizing trace metals such as Fe, volcanic ash contains a variety of potentially toxic metals such as Cd, Cu, Pb, and ...
Ardelan, M. V., Breitbarth, Eike, Duggen, Svend, Hassellöv, M., Hoffmann, Linn J., Olgun, Nazli, Wängberg, S.-A.   +6 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source