Results 51 to 60 of about 6,333 (204)

Nitrogen removal and ammonia-oxidising bacteria in a vertical flow constructed wetland treating inorganic wastewater [PDF]

open access: yes, 2011
Nitrogen removal performance and the ammonia-oxidising bacterial (AOB) community were assessed in the batch loaded 1.3ha saturated surface vertical flow wetland at CSBP Ltd, a fertiliser and chemical manufacturer located in Kwinana, Western Australia ...
Domingos, S.S.   +4 more
core  

Unifying the global phylogeny and environmental distribution of ammonia-oxidising archaea based on amoA genes [PDF]

open access: yesNature Communications, 2018
AbstractAmmonia-oxidising archaea (AOA) are ubiquitous and abundant in nature and play a major role in nitrogen cycling. AOA have been studied intensively based on the amoA gene (encoding ammonia monooxygenase subunit A), making it the most sequenced functional marker gene.
Ricardo J. Eloy Alves   +4 more
openaire   +5 more sources

Long‐Term Low‐DO Operation Changes the Ammonia Oxidizer Community and Oxygen Kinetics

open access: yesWater Environment Research, Volume 98, Issue 10, October 2026.
Lower dissolved oxygen reduces energy demand for wastewater treatment but slows ammonia removal. This study investigates a pilot process maintaining complete nitrification, documenting ammonia oxidizer adaptation to low dissolved oxygen. ABSTRACT Low–dissolved oxygen (DO) biological nutrient removal is an attractive option for energy and cost reduction,
Kester McCullough   +10 more
wiley   +1 more source

Restoring soil health from dredged sediments through electrokinetic remediation for zucchini cultivation

open access: yesAgronomy Journal, Volume 118, Issue 5, September/October 2026.
Abstract Dredged sediments are rich in organic matter and nutrients, but their agricultural reuse is limited by high salinity. Electrokinetic remediation (EKR) can remove salts, yet its effect on overall soil health, including microbial function and plant nutrient dynamics, remains poorly understood.
Zulfiqar Ahmad   +6 more
wiley   +1 more source

Correlation between nitrate production rates and amoA abundance.

open access: yes, 2015
Coefficients of determination (r2) for the correlation between the nitrate production rates and the number of amoA transcripts and genes. The coefficients were determined for the bacterial, archaeal or total summed amoA for either N-amended or non ...
Mathis Hjort Hjelmsø (734566)   +8 more
core   +1 more source

The influence of salinity and ammonium levels on amoA mRNA expression of ammonia-oxidizing prokaryotes

open access: yesWater Science and Technology, 2012
This study investigated the influence of salinity and ammonium levels on ammonia-oxidizing bacteria (AOB) and archaea (AOA) by monitoring their amo subunit A (amoA) messenger RNA (mRNA) expression. The aerobic mini-continuous stirred-tank reactors (mini-CSTRs) were operated for 48 h under different salinity or ammonium levels.
T, Fukushima, Y J, Wu, L M, Whang
openaire   +2 more sources

Enhancing Security in IoT-Assisted UAV Networks Using Adaptive Mongoose Optimization Algorithm With Deep Learning

open access: yesIEEE Access
Due to the sensitive and mission-critical nature of the data collected and transferred, security in IoT-assisted UAV networks is of great significance. Intrusion detection in IoT-assisted UAV networks includes the deployment of complex monitoring systems
Saud S. Alotaibi   +5 more
doaj   +1 more source

Organ Size and Metabolic Rate Co‐Vary with Dimensions of the Obstetric Pelvis: The Metabolic Coordination of Childbirth Hypothesis

open access: yesAmerican Journal of Biological Anthropology, Volume 191, Issue 1, September 2026.
Among South Asian women, those with larger organ mass and energy expenditure, indicating greater capacity to promote fetal growth, had larger pelvic dimensions, partly explained by linear growth patterns. However, body fat correlated with energy expenditure but not pelvic dimensions, helping explain why high adiposity increases risk of obstructed ...
Jonathan C. K. Wells   +6 more
wiley   +1 more source

Abundance and diversity of ammonia-oxidizing archaea and bacteria in sediments of trophic end members of the Laurentian Great Lakes, Erie and Superior. [PDF]

open access: yesPLoS ONE, 2014
Ammonia oxidation is the first step of nitrification carried out by ammonia-oxidizing Archaea (AOA) and Bacteria (AOB). Lake Superior and Erie are part of the Great Lakes system differing in trophic status with Lake Superior being oligotrophic and Lake ...
Annette Bollmann   +2 more
doaj   +1 more source

Biochar Addition Inhibits Nitrification by Shifting Community Structure of Ammonia-Oxidizing Microorganisms in Salt-Affected Irrigation-Silting Soil

open access: yesMicroorganisms, 2022
Biochar has been widely recognized as an effective and eco-friendly ameliorant for saline soils, but information about the mechanism of how biochar influences nitrification in salt-affected agroecosystem remains fragmented.
Rong-Jiang Yao   +5 more
doaj   +1 more source

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