نتایج جستجو برای: using kakwani

تعداد نتایج: 3387864  

2015
Dirk Bass Malek Telfah Justin Bowra

Introduction: Obesity levels mean an increased presentation of patients with Laparoscopic adjustable gastric banding (LAGB). Method: Literature search revealed a paucity of information on ultrasonography to diagnose a slipped LAGB. Conclusion: 2D Ultrasonography with a standard low frequency curvilinear probe proved to be a simple, effective method of diagnosing slipped Laparoscopic adjustable ...

Journal: :Communications in agricultural and applied biological sciences 2003
S W H Van Hulle S Van Den Broeck J Maertens K Villez G Schelstraete E I P Volcke P A Vanrolleghem

Partial nitrification techniques, such as the continuously aerated SHARON process, have been denoted for quite a while as very promising for improved sustainability of wastewater treatment. Combination of such a SHARON process with the Anammox process, where ammonium is oxidised with nitrite to nitrogen gas under anoxic conditions, leads to cost-efficient and sustainable nitrogen removal from c...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Bodo Scheiper Frank Glorius Andreas Leitner Alois Fürstner

A concise and efficient total synthesis of the spermidine alkaloid (-)-isooncinotine (1) incorporating a 22-membered lactam ring is outlined. The approach is largely catalysis-based, involving a selective iron-catalyzed alkyl-aryl cross-coupling reaction of a difunctionalized pyridine substrate, a heterogeneous asymmetric hydrogenation step to set the chiral center of the target, and a highly i...

Journal: :The Journal of biological chemistry 2004
Fábio R Melo Mariana S Pereira Débora Foguel Paulo A S Mourão

We investigated the mechanisms of anticoagulant activity mediated by sulfated galactans. The anticoagulant activity of sulfated polysaccharides is achieved mainly through potentiation of plasma cofactors, which are the natural inhibitors of coagulation proteases. Our results indicated the following. 1) Structural requirements for the interaction of sulfated galactans with coagulation inhibitors...

2017
Andrey V Mardanov Alexey V Beletsky Yury Nikolaev Roman Y Kotlyarov Anna Kallistova Nikolai V Pimenov Nikolai V Ravin

We sequenced the metagenome of a granular sludge in a nitritation/anammox bioreactor used for the treatment of ammonium-rich wastewater. Proteobacteria, Planctomycetes, Bacteroidetes, Chloroflexi, Ignavibacteriae, and Acidobacteria were the predominant phyla in the studied bioreactor. Binning of contigs yielded a near-complete genome of the dominant anammox bacterium assigned to the candidate g...

Journal: :PloS one 2016
Alex Enrich-Prast Viviane Figueiredo Francisco de Assis Esteves Lars Peter Nielsen

Sediment denitrification rates seem to be lower in tropical environments than in temperate environments. Using the isotope pairing technique, we measured actual denitrification rates in the sediment of tropical coastal lagoons. To explain the low denitrification rates observed at all study sites (<5 μmol N2 m-2 h-1), we also evaluated potential oxygen (O2) consumption, potential nitrification, ...

Journal: :Applied and environmental microbiology 2008
Wouter R L van der Star Maarten J van de Graaf Boran Kartal Cristian Picioreanu Mike S M Jetten Mark C M van Loosdrecht

Anaerobic ammonium oxidation is a recent addition to the microbial nitrogen cycle, and its metabolic pathway, including the production and conversion of its intermediate hydrazine, is not well understood. Therefore, the effect of hydroxylamine addition on the hydrazine metabolism of anaerobic ammonium-oxidizing (anammox) bacteria was studied both experimentally and by mathematical modeling. It ...

2016
Xin Yin Sen Qiao Jiti Zhou

In this study, the effects of different cycle durations of an external electrostatic field on an anammox biomass were investigated. The total application time per day was 12 h at 2 V/cm for different cycle durations (i.e., continuous application-resting time) of 3 h-3 h, 6 h-6 h, and 12 h-12 h. Compared with the control reactor, the nitrogen removal rates (NRRs) increased by 18.7%, 27.4% and 8....

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Cecelia C S Hannides

Every night a massive migration takes place in ocean waters. Zooplankton and micronekton, a diverse group of organisms <1 mm to 10 cm in size, swim up from midwater depths (200–700 m) to the surface ocean to feed and return down to resting depths before daybreak. The importance of this diel vertical migration to marine biogeochemical cycles has been recognized for some time. Research has primar...

2012
Jeremy A. Guggenheim Kate Northstone George McMahon Andy R. Ness Kevin Deere Calum Mattocks Beate St Pourcain Cathy Williams

METHODS. Participants in the Avon Longitudinal Study of Parents and Children (ALSPAC) were assessed by noncycloplegic autorefraction at ages 7, 10, 11, 12, and 15 years, and classified as myopic ( -1 diopters) or as emmetropic/ hyperopic (‡-0.25 diopters) at each visit (N 1⁄4 4,837–7,747). Physical activity at age 11 years was measured objectively using an accelerometer, worn for 1 week. Time s...

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