Results 31 to 40 of about 1,034,709 (313)

New Nitrogen-Containing Recycled Fertilizers: Bioavailability of Nutrients and Harmful Elements

open access: yesRecycling, 2019
Environmental policies of the European Union aim to increase recycling and re-use of waste-streams. One of the economically most profitable ways of re-using waste is to use it as a fertilizer.
Janne Pesonen, Pasi Rautio
doaj   +1 more source

Growth and Elemental Stoichiometry of the Ecologically-Relevant Arctic Diatom Chaetoceros gelidus: A Mix of Polar and Temperate

open access: yesFrontiers in Marine Science, 2020
In the wake of modest surface blooms that occur at the onset of the growth season in the nitrogen-poor surface waters of the Beaufort Sea, subsurface chlorophyll maxima (SCM) develop and persist within the nutrient-rich halocline.
Nicolas Schiffrine   +5 more
doaj   +1 more source

Ammonium diphosphitoindate(III) [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2013
The crystal structure of the title compound, NH4[In(HPO3)2], is built up from In(III) cations (site symmetry 3m.) adopting an octa-hedral environment and two different phosphite anions (each with site symmetry 3m.) exhibiting a triangular-pyramidal geometry. Each InO6 octa-hedron shares its six apices with hydrogen phosphite groups.
Farida Hamchaoui   +2 more
openaire   +3 more sources

A catalyst-coated diaphragm assembly to improve the performance and energy efficiency of alkaline water electrolysers

open access: yesCommunications Engineering
Alkaline water electrolysers are ideal for gigawatt-scale hydrogen production due to the usage of non-precious metal and low-cost raw materials. However, their performances are modest with the separated electrode and diaphragm structure which can date ...
Zhuang Xu   +7 more
doaj   +1 more source

Growth, physiology, and metabolism of Halomonas meridiana in aqueous ammonium sulfate with implications for icy moon astrobiology

open access: yesFrontiers in Microbiology
The discovery of extraterrestrial reservoirs of liquid water has motivated missions to icy moons Europa and Titan. Tentative evidence of ammonium sulfate ((NH4)2SO4) has been detected on the surface of Europa, and (NH4)2SO4 could be a prominent ...
Cassie M. Hopton   +2 more
doaj   +1 more source

Synergistic effects of nitrogen metabolites on auxin regulating plant growth and development

open access: yesFrontiers in Plant Science, 2022
Nitrogen is one of the important nutrients required for plant growth and development. There is increasing evidences that almost all types of nitrogen metabolites affect, at least to some extent, auxin content and/or signaling in plants, which in turn ...
Yu-Fan Fu   +3 more
doaj   +1 more source

A mathematical model of bacteria capable of complete oxidation of ammonium predicts improved nitrogen removal and reduced production of nitrous oxide [PDF]

open access: yes, 2017
The removal of excess nutrients from water ecosystems requires oxidation of toxic ammonium by two types of bacteria; one oxidizes ammonium to nitrite and the other oxidizes nitrite to nitrate.
Ebenhöh, Oliver, Pokhilko, Alexandra
core  

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Factors affecting ammonium uptake in streams - an inter-biome perspective [PDF]

open access: yes, 2003
The Lotic Intersite Nitrogen experiment (LINX) was a coordinated study of the relationships between North American biomes and factors governing ammonium uptake in streams. Our objective was to relate inter-biome variability of ammonium uptake to physical,
Bowden, William B.   +18 more
core   +1 more source

Reorientational Dynamics and Solid-Phase Transformation of Ammonium Dicyanamide into Dicyandiamide [PDF]

open access: yes, 2007
The reorientational dynamics of ammonium dicyanamide ND4[N(C≡N)2] and the kinetics as well as the mechanism of the solid-state isomerization reaction from ammonium dicyanamide into dicyandiamide (N≡C-N=C(NH2)2) was studied by means of 2H and 14N solid ...
Lotsch, Bettina V.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy