Results 21 to 30 of about 212,515 (313)
Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]
Ever since the first descriptions of ammonia-oxidizing Bacteria by Winogradsky in the late 1800s, the metabolic capability of aerobic ammonia oxidation has been restricted to a phylogenetically narrow group of bacteria.
Bernhard, Anne E, Bollmann, Annette
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Phanerozoic radiation of ammonia oxidizing bacteria [PDF]
Abstract The modern nitrogen cycle consists of a web of microbially mediated redox transformations. Among the most crucial reactions in this cycle is the oxidation of ammonia to nitrite, an obligately aerobic process performed by a limited number of lineages of bacteria (AOB) and archaea (AOA). As this process has
Ward, LM, Johnston, DT, Shih, PM
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Ammonia oxidation plays a significant role in the nitrogen cycle in marine sediments. Ammonia-oxidizing archaea (AOA) and bacteria (AOB) are the key contributors to ammonia oxidation, and their relative contribution to this process is one of the most ...
Hui He +13 more
doaj +1 more source
Radical Chemistry in a Femtosecond Laser Plasma: Photochemical Reduction of Ag+ in Liquid Ammonia Solution [PDF]
Plasmas with dense concentrations of reactive species such as hydrated electrons and hydroxyl radicals are generated from focusing intense femtosecond laser pulses into aqueous media. These radical species can reduce metal ions such as Au3+ to form metal
Ahsan, Syeda +4 more
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Situation and prospects of treatment technologies for mine water containing ammonia nitrogen
As the discharge standards for mine water treatment become more stringent, the requirements for effective removal of ammonia nitrogen from mine water are strongly needed.
LI Fuqin* +4 more
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Nitrogen containing species as intermediates in the oxidation of ammonia over silica supported molybdena catalysts [PDF]
The behaviour of ammonia and oxygen over silica supported molybdena catalysts has been studied by means of thermal analysis techniques, such as thermo-gravimetry and heat-flow calorimetry.
Biermann, J.J.P. +2 more
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Nitrification, the oxidative process converting ammonia to nitrite and nitrate, is driven by microbes and plays a central role in the global nitrogen cycle.
Arda Gülay +7 more
doaj +1 more source
Meta-analysis reveals ammonia-oxidizing bacteria respond more strongly to nitrogen addition than ammonia-oxidizing archaea [PDF]
Shifts in microbial communities driven by anthropogenic nitrogen (N) addition have broad-scale ecological consequences. However, responses of microbial groups to exogenous N supply vary considerably across studies, hindering efforts to predict community ...
Aronson, Emma L +4 more
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Summary: An electrochemical approach for ammonia production is successfully developed by coupling the anodic dinitrogen oxidation reaction (NOR) and cathodic hydrogen evolution reaction (HER) within a well-designed membraneless flow electrolyzer.
Jing-Jing Lv +3 more
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Ammonia oxidation is not required for growth of Group 1.1c soil Thaumarchaeota [PDF]
© FEMS 2015. FUNDING EBW is funded by Centre for Genome Enabled Biology and Medicine, University of Aberdeen.Peer reviewedPublisher ...
Gubry-Rangin, Cécile +3 more
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