Results 31 to 40 of about 54,813 (368)

Experimental study on stability and rheological properties of aqueous foam in the presence of reservoir natural solid particles [PDF]

open access: yes, 2016
The authors would like to acknowledge the school of engineering at the University of Aberdeen and University Technology Malaysia (UTM) to provide required materials and facilities to complete this research.Peer ...
Hamidi, Hossein   +2 more
core   +1 more source

Strontium-induced genomic responses of Cupriavidus metallidurans and strontium bioprecipitation as strontium carbonate

open access: yesAnnals of Microbiology, 2012
The physiological and global transcriptomic response of the metal-resistant bacterium Cupriavidus metallidurans CH34 to stable non-radioactive strontium (Sr) was investigated. C. metallidurans CH34 was able to survive and proliferate in the presence of relatively high concentrations of SrCl2 (concentration of Sr needed to inactivate 90 % of the cells = 
Haïtham Sghaier   +8 more
openaire   +2 more sources

A Sr-Rich Star on the Main Sequence of Omega Centauri [PDF]

open access: yesAstrophys.J.653:L117-L120,2006, 2006
Abundance ratios relative to iron for carbon, nitrogen, strontium and barium are presented for a metal-rich main sequence star ([Fe/H]=--0.74) in the globular cluster omega Centauri. This star, designated 2015448, shows depleted carbon and solar nitrogen, but more interestingly, shows an enhanced abundance ratio of strontium [Sr/Fe] ~ 1.6 dex, while ...
arxiv   +1 more source

Light-driven nucleation, growth, and patterning of biorelevant crystals using resonant near-infrared laser heating

open access: yesNature Communications, 2023
Spatiotemporal control over crystal nucleation and growth is of fundamental interest for understanding how organisms assemble high-performance biominerals, and holds relevance for manufacturing of functional materials.
Marloes H. Bistervels   +4 more
doaj   +1 more source

Formation of nanosized strontium substituted hydroxyapatites [PDF]

open access: yes, 2012
Incorporation of specific elements into calcium phosphates offers the combination of a bioactive material and a therapeutic effect. This is important for improving the integration of implants as well as treating medical conditions.
A Jeršova   +5 more
core   +1 more source

Authigenic Clays Versus Carbonate Formation as Products of Marine Silicate Weathering in the Input Sequence to the Sumatra Subduction Zone

open access: yesGeochemistry, Geophysics, Geosystems, 2022
We use geochemical and petrographic data from anoxic sequences of the Nicobar Fan to document extensive marine silicate weathering (MSiW) in the input sediment of the Sumatra subduction zone and the conditions that result in authigenic minerals ...
M. E. Torres   +4 more
doaj   +1 more source

Strontium-loaded mineral bone cements as sustained release systems : Compositions, release properties, and effects on human osteoprogenitor cells [PDF]

open access: yes, 2011
This study aims to evaluate in vitro the release properties and biological behavior of original compositions of strontium (Sr)-loaded bone mineral cements.
Amédée, Joelle   +8 more
core   +1 more source

The influence of water–rock interactions on household well water in an area of high prevalence chronic kidney disease of unknown aetiology (CKDu)

open access: yesnpj Clean Water, 2021
Poor drinking water quality in household wells is hypothesised as being a potential contributor to the high prevalence of chronic kidney disease of uncertain aetiology (CKDu) among the farming communities of the Medawachchiya area, Anuradhapura, Sri ...
Liza K. McDonough   +3 more
doaj   +1 more source

Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation? : A case study from the East Kirkton Limestone, Scotland [PDF]

open access: yes, 2018
BP Exploration Co. is thanked for funding, and particularly the Carbonate Team for supporting this research and for fruitful discussions. West Lothian Council and Scottish Natural Heritage are thanked for allowing access and permission for sampling the ...
Billing, Ian   +11 more
core   +1 more source

Substitution of Ca2+ by Sn2+ and Sr2+ cations in P. placenta shells and single-crystal calcite through ion exchange reactions

open access: yesMaterials Research Express, 2021
Tin (Sn ^2+ ) and strontium (Sr ^2+ ) are potential replacements to lead (Pb ^2+ ) in perovskite synthesis since Sn is on the same IVA group in the periodic table as Pb while Sr is a promising alternative according to Goldschmidt’s rules and quantum ...
Jonathan B Junio   +2 more
doaj   +1 more source

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