Results 201 to 210 of about 225,307 (327)

(NH4)2[Tc2O2(S2O7)4]: An Unexpected Technetium(V)‐Sulfate From the Reaction of (NH4)(TcO4) With SO3

Chemistry – A European Journal, EarlyView.
The reaction of the radioactive pertechnetate (99TcO4)− with the oxidizer SO3 leads to blue crystals of (NH4)2[Tc2O2(S2O7)4]. The complex dimeric [Tc2O2(S2O7)4]2− anion exhibits the technetium in the oxidation state V, showing that reduction occurs during the reaction.
Stefan Sutorius, Julian Heinen, David van Gerven, Jörn Bruns, Erik Strub, Mathias S. Wickleder   +5 more
wiley   +1 more source

Evolutionary Tempo, Supertaxa, and Living Fossils. [PDF]

Syst Biol
Budd GE, Mann RP.
europepmc   +1 more source

Specie-area relationship of termite nests of the pasture, Goiânia-GO, Brazil.

, 2010
Hélida Ferreira da Cunha, Pedro Paulo Aquino Moura Morais   +1 more
openalex   +1 more source

Nonlinear Active Site Dynamic Behavior Over In Situ Generated Working Zeolites

Chemie Ingenieur Technik, EarlyView.
The methoxymethyl mechanism over α, β, and γ site ensembles and the dynamic site‐interconversion mechanism reduce the induction period of propylene formation. The methoxymethyl mechanism acts on site ensemble α generating surface methoxy species (SMS), which, through the dynamic site‐interconversion mechanism, lead to SMS on site ensembles β and γ that
Toyin Omojola
wiley   +1 more source

The Impact of Fluoride Pollution on Fungal Communities at the Watershed Scale: A Case Study of the Qingshui River, Ningxia. [PDF]

Microorganisms
Zhao Z, Qiu X, Yin J, Zhao R, Ni C.
europepmc   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source

Non-adaptive Radiation Promotes Phenotypic Diversification and Convergent Evolution of Aposematic Mimicry in a Highly Diverse Genus of Megaloptera. [PDF]

Syst Biol
Tu Y, Li X, Hayashi F, Zhang F, Yang D, Condamine FL, Liu X.   +6 more
europepmc   +1 more source

Infiammabilità della lettiera di diverse specie vegetali di ambiente mediterraneo

, 2007
Maria Petriccione
openalex   +1 more source

Microplastics and nanoplastics in water: Improving removal in wastewater treatment plants with alternative coagulants

The Canadian Journal of Chemical Engineering, EarlyView.
The contaminant removal performance of a conventional coagulant, alum, and alternative coagulants, aluminium chlorohydrate (ACH) and ACH + pDADMC, are compared in challenging wastewater treatment conditions (pH >7.8). The interactions of each coagulant with a negatively charged surface are depicted based on quartz crystal microbalance with dissipation ...
Sinan Abi Farraj, Mathieu Lapointe, Rafael S. Kurusu, Nathalie Tufenkji   +3 more
wiley   +1 more source

Study on the Influencing Factors of the Migration and Transformation Behavior of Hexavalent Chromium in a Soil-Groundwater System: A Review. [PDF]

Toxics
Zhao X, Hao M, Fan T, Liu A, Feng C.
europepmc   +1 more source