Results 121 to 130 of about 3,636,916 (342)
Coupled anoxic nitrification/manganese reduction in marine sediments [PDF]
, 1999 Pore water and solid phase distributions of oxygen, manganese, and nitrogen from hemipelagic and shelf sediments sometimes indicate a close coupling between the manganese and nitrogen redox cycles.
Aller, Robert Curwood +2 more
core +4 more sources
Cultivation and Transcriptional Analysis of a Canonical Nitrospira Under Stable Growth Conditions
Frontiers in Microbiology, 2019 Nitrite-oxidizing bacteria (NOB) are vital players in the global nitrogen cycle that convert nitrite to nitrate during the second step of nitrification.
Aniela B. Mundinger +4 more
doaj +1 more source
Is sunlight good for our heart? [PDF]
, 2010 Humans evolved being exposed for about half of the day to the light of the sun. Nowadays, exposure to sunlight is actively discouraged for fear of skin cancer, and contemporary lifestyles are associated with long hours spent under artificial light ...
Feelisch, Martin +6 more
core +1 more source
Frontiers in Microbiology, 2015 Methane oxidation is an important process to mitigate the emission of the greenhouse gas methane and further exacerbating of climate forcing. Both aerobic and anaerobic microorganisms have been reported to catalyze methane oxidation with only a few ...
Arslan eArshad +5 more
doaj +1 more source
Acta Chimica Slovenica, 2018 Iridium oxide (IrOx) was electrodeposited onto glassy carbon electrode applying two-step potential cycling procedure. The electrocatalytic properties of the modified electrode IrOx/GC were evaluated with regards to electrochemical oxidation of nitrite ...
Totka Dodevska +2 more
doaj +1 more source
Influence of trace erythromycin and eryhthromycin-H2O on carbon and nutrients removal and on resistance selection in sequencing batch reactors (SBRs). [PDF]
, 2009 Three sequencing batch reactors (SBRs) were operated in parallel to study the effects of trace erythromycin (ERY) and ERY-H2O on the treatment of a synthetic wastewater.
Alvarez-Cohen, Lisa +6 more
core +1 more source
Inhibition of microbial sulfate reduction in a flow-through column system by (per)chlorate treatment. [PDF]
, 2014 Microbial sulfate reduction is a primary cause of oil reservoir souring. Here we show that amendment with chlorate or perchlorate [collectively (per)chlorate] potentially resolves this issue. Triplicate packed columns inoculated with marine sediment were
Anderson, Gary +10 more
core +5 more sources
Electrochemical Study of Esculetin Nitration by Digital Simulation of Cyclic Voltammograms
Journal of Chemistry, 2013 The reaction of electrochemically generated o-quinones from oxidation of esculetin as Michael acceptor with nitrite ion as nucleophile has been studied using cyclic voltammetry. The reaction mechanism is believed to be EC, including oxidation of catechol
Lida Khalafi +3 more
doaj +1 more source
Nitrification-denitrification in WSP: a mechanism for permanent nitrogen removal in maturation ponds [PDF]
, 2009 A pilot-scale primary maturation pond was spiked with 15N-labelled ammonia (15NH4Cl) and 15N labelled nitrite (Na15NO2), in order to improve current understanding of the dynamics of inorganic nitrogen transformations and removal in WSP systems.
Camargo Valero, M +5 more
core
Nitrogen Oxide Concentrations in Natural Waters on Early Earth
, 2019 A key challenge in origins-of-life studies is estimating the abundances of species relevant to the chemical pathways proposed to have contributed to the emergence of life on early Earth.
Babbin, Andrew R. +4 more
core +1 more source