Results 71 to 80 of about 407,317 (358)

Concentrations of Essential Trace Metals in the Brain of Animal Species—A Comparative Study

Brain Sciences, 2020
The essential trace metals iron, zinc, and copper have a significant physiological role in healthy brain development and function. Especially zinc is important for neurogenesis, synaptogenesis, synaptic transmission and plasticity, and neurite outgrowth.
Chiara Alessia DeBenedictis, Andrea Raab, Ellen Ducie, Shauna Howley, Joerg Feldmann, Andreas Martin Grabrucker   +5 more
doaj   +1 more source

Trace Element Estimation – Methods & Clinical Context [PDF]

, 2005
Understanding the effects of trace metals on human health is as complex as it is fascinating. As mentioned earlier, the high concentrations may prove toxic, as also, depletion in the concentration of the essential trace elements may cause various ...
Rao Nanjunda, Dr. Ananth
core   +1 more source

Multi-metal contamination of a calcic cambisol by fallout from a lead-recycling plant [PDF]

, 2008
The present study deals with the impact of a lead-recycling plant on metal accumulation in soils, evaluated by a global pedological analysis. This general approach can be used on various contaminated sites to evaluate impact of an anthropogenic activity ...
Alric, Alain, Cecchi, Marie, Dumat, Camille, Felix-Faure, B., Guiresse, Agnès Maritchù, Pradère, Philippe   +5 more
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Role of natural nanoparticles, imogolite and allophane, on the mobility of trace metals in soils from La Reunion Island [PDF]

, 2008
This research adresses the sensitive field of waste management in an insular context. The case of the Reunion Island bears some aggravating factors making the waste management an even more sensitive subject: 1) it is a small island with a fast growing ...
Borschneck, Daniel, Bottero, Jean Yves, Doelsch, Emmanuel, Levard, Clément, Masion, Armand, Rose, Jérôme   +5 more
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect of domestic heat processing techniques on the trace metals concentration in imported frozen fish products in Bayelsa State, Nigeria, and health risk assessment

Journal of Trace Elements and Minerals
Introduction: Trace metals in fish play different important roles, both for the fish itself and humans who consume them. However, some of these metals are toxic at low concentrations, and are considered as health hazards. In this study, the concentration
Paschal O. Iniaghe, Ejovi Osioma, Faustina O. Iniaghe   +2 more
doaj   +1 more source

Effects of trace metal concentrations on the growth of the coral endosymbiont Symbiodinium kawagutii

Frontiers in Microbiology, 2016
Symbiodinium is an indispensable endosymbiont in corals and the most important primary producer in coral reef ecosystems. During the past decades, coral bleaching attributed to the disruption of the symbiosis has frequently occurred resulting in ...
Irene Barra Rodriguez, Senjie eLin, Senjie eLin, Jiaxuan eHo, Jiaxuan eHo, Tung-Yuan eHo   +5 more
doaj   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Bedrock and soil geochemistry influence the content of chemical elements in wild edible mushrooms (Morchella group) from South Italy (Sicily) [PDF]

, 2019
Chemical elements in the samples of wild edible mushrooms of the Morchellagroup collected from different unpolluted Sicilian sites was analyzed by the ICP-MS (method) to detect the content of their minerals and determine whether soil geology and ...
Alessandro Saitta, Elia Ambrosio, Maria Grazia Alaimo   +2 more
core   +1 more source