Results 21 to 30 of about 5,751,052 (300)

Simultaneous recovery of metals and degradation of organic species: Copper and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) [PDF]

open access: yes, 2009
In mixed wastewater streams, the presence of metal ions can retard the destruction of organic contaminants and the efficiency of recovery of the metal is reduced by the presence of organic species.
Hassan, MU, Grimes, SM, Chaudhary, AJ
core   +6 more sources

Copper Nanoparticles Prepared fromOxalic Precursors [PDF]

open access: yes, 2011
The synthesis of nanoparticles of copper metal via a soft chemistry route is presented in this paper. The method is based on the thermal decomposition under nitrogen or hydrogen of oxalic precursors with a well-controlled morphology and particle size ...
Philippe Tailhades   +5 more
core   +1 more source

Las mujeres en las sociedades campaniformes del interior peninsular [PDF]

open access: yesMunibe Antropologia-Arkeologia
La presente contribución pretende de forma general discutir la frecuencia con la que han aparecido tumbas con enterramientos femeninos sometidos al ritual campaniforme en la región de Madrid.
Corina Liesau Von Lettow-Vorbeck   +1 more
doaj   +1 more source

Orțișoara preistorică - fortificție rondel / Prehistoric Orțișoara, Rondelle type fortification

open access: yesAnalele Banatului. Arheologie-Istorie, 2021
This paper is focused upon a significant quantity of archaeological finds discovered in one of the archaeological surface surveys in the summer of 2010, during my participation at the Timișoara – Arad motorway rescue excavations, next to the village of ...
Sote Angeleski
doaj   +1 more source

Evaluation of zinc and copper levels in vaginal tissues and whole blood: correlation with age

open access: yesBMC Women's Health, 2021
Background Zinc and copper are essential trace elements and play a crucial role in the homeostasis of connective tissues. In this study, we aimed to define zinc and copper levels in the vaginal tissue and establish whether a correlation exists between ...
Anett Csikós   +6 more
doaj   +1 more source

A long-term copper exposure on freshwater ecosystem using lotic mesocosms: Individual and population responses of three-spined sticklebacks (Gasterosteus aculeatus) [PDF]

open access: yes, 2007
Three-spined stickleback (Gasterosteus aculeatus) was used as the highest trophic level predator in an outdoor mesocosm study assessing the effect of environmentally realistic copper concentration (0, 5, 25 and 75 μg L−1) over 18 months of continuous ...
Gauthier, Laury   +5 more
core   +1 more source

Investigating Technological Changes in Copper-Based Metals Using Portable XRF Analysis. A Case Study in Sicily

open access: yesOpen Archaeology, 2017
The introduction of copper-based metals in Sicily appears to have been a particularly late and slow process. A program of pXRF analyses on early metals in Sicily has revealed the use of mostly copper, and a very late introduction of tin.
Vianello Andrea, Tykot Robert H.
doaj   +1 more source

The Copper Age in Northern Italy [PDF]

open access: yesRadiocarbon, 2001
During the period between the IVth and IIIrd millennia BC, profound changes for the ancient populations inhabiting the northern region of Italy occurred. The first Indo-European migrations were altering the ethnographic characteristics and, with the production of the first copper artifacts, the Neolithic Age was drawing to an end.
Zoppi U.   +6 more
openaire   +3 more sources

A differential genome-wide transcriptome analysis : impact of cellular copper on complex biological processes like aging and development [PDF]

open access: yes, 2012
The regulation of cellular copper homeostasis is crucial in biology. Impairments lead to severe dysfunctions and are known to affect aging and development.
Servos, Jörg   +11 more
core   +2 more sources

The effectiveness of conventional trickling filter treatment plants at reducing concentrations of copper in wastewaters [PDF]

open access: yes, 2009
This is the post-print version of the final paper published in Science of the Total Environment. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Ziolko, D   +3 more
core   +1 more source

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