Results 41 to 50 of about 74,161 (253)

The meta-analysis and systematic review of prevalence and clinical anatomy of the arc of Buhler

Scientific Reports, 2023
The arc of Buhler (AOB) is a direct anastomosis of the celiac axis and superior mesenteric artery. This paper reviews the literature on the AOB and provides accurate and up-to-date data on its prevalence, anatomy, and clinical significance.
Katarzyna A. Kowalczyk, Jakub Pękala, Michał Kawzowicz, Przemysław A. Pękala, Krzysztof A. Tomaszewski   +4 more
doaj   +1 more source

Impact of Ultrasonication on African Oil Bean (Pentaclethra macrophylla Benth) Protein Extraction and Properties

Foods, 2023
African oil bean (Pentaclethra macrophylla Benth) is an underutilised edible oil seed that could represent a sustainable protein source. In this study, the impact of ultrasonication on the extraction efficiency and properties of protein from African oil ...
Blessing C. Nwokocha, Afroditi Chatzifragkou, Colette C. Fagan   +2 more
doaj   +1 more source

Stability and performance of two GSBR operated in alternating anoxic/aerobic or anaerobic/aerobic conditions for nutrient removal [PDF]

, 2012
Two granular sludge sequencing batch reactors (GSBR) with alternating anoxic/aerobic (R1) and anaerobic/aerobic (R2) conditions were operated with a 4-carbon-source synthetic influent. The physical properties of the granular sludge were very good (SVI≈20
Bessiere, Yolaine, Biscans, Béatrice, Filali, Ahlem, Manas, Angela, Mercade, Myriam, Sperandio, Mathieu   +5 more
core   +3 more sources

Archaeal ammonia oxidizers dominate in numbers, but bacteria drive gross nitrification in N-amended grassland soil

Frontiers in Microbiology, 2015
Both ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) play an important role in nitrification in terrestrial environments. Most often AOA outnumber AOB, but the relative contribution of AOA and AOB to nitrification rates remains ...
Anna E Sterngren, Sara eHallin, Per eBengtson   +2 more
doaj   +1 more source

Unraveling the active microbial populations involved in nitrogen utilization in a vertical subsurface flow constructed wetland treating urban wastewater [PDF]

, 2017
The dynamics of the active microbial populations involved in nitrogen transformation in a vertical subsurface flow constructed wetland (VF) treating urban wastewater was assessed.
García Serrano, Joan, Guivernau Ribalta, Miriam, Pelissari, Catiane, Sezerino, Pablo Heleno, Silva de Souza, Samara, Viñas Canals, Marc, Ávila Martín, Cristina   +6 more
core   +2 more sources

Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]

, 2010
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
core   +2 more sources

Anoxic nitrification in marine sediments [PDF]

, 2004
Nitrate peaks are found in pore-water profiles in marine sediments at depths considerably below the conventional zone of oxic nitrification. These have been interpreted to represent nonsteady- state effects produced by the activity of nitrifying ...
Anschutz, P., Barnes, J., Davies, I.M., Freitag, T.E., Harris, S.J., Hayes, P.J., Krom, M.D., Mortimer, R.J.G., Prosser, J.I.   +8 more
core   +1 more source

Organic Matter Regulates Ammonia-Oxidizing Bacterial and Archaeal Communities in the Surface Sediments of Ctenopharyngodon idellus Aquaculture Ponds

Frontiers in Microbiology, 2018
Ammonia-oxidizing bacteria (AOB) and archaea (AOA) play important roles in nitrogen removal in aquaculture ponds, but their distribution and the environmental factors that drive their distribution are largely unknown.
Lili Dai, Lili Dai, Chengqing Liu, Chengqing Liu, Liqin Yu, Chaofeng Song, Liang Peng, Xiaoli Li, Ling Tao, Gu Li   +9 more
doaj   +1 more source

Models for nitrification process design: one or two AOB populations?

Water Science and Technology, 2010
Models for engineering design of nitrifying systems use one ammonia oxidizer biomass (AOB) state variable. A simple extension using two AOB populations allows a more accurate prediction of nitrification systems at switching process environments. These two AOB subpopulations are characterized by two different sets of kinetic parameters.
B, Wett, J A, Jimenez, I, Takács, S, Murthy, J R, Bratby, N C, Holm, S G E, Rönner-Holm   +6 more
openaire   +2 more sources

Research progress on challenges and countermeasures for NOB suppression in urban wastewater PN/A process

Gongye shui chuli
Partial nitritation and Anammox(PN/A) combined process has become a research hotspot in urban wastewater denitrification process due to the advantages of saving aeration energy, no additional carbon source and low sludge production.
REN Heting, LIU Haojie
doaj   +1 more source