Results 21 to 30 of about 1,249,363 (328)

AMMONIUM SELENIDE. [PDF]

Journal of the American Chemical Society, 1898
n ...
Lenher, Victor, Smith, Edgar F.
openaire   +2 more sources

AMMONIUM VANADICOPHOSPHOTUNGSTATE. [PDF]

Journal of the American Chemical Society, 1902
n ...
Smith, Edgar F., Exner, Franz F.
openaire   +1 more source

Nitrogen and phosphorus significantly alter growth, nitrogen fixation, anatoxin-a content, and the transcriptome of the bloom-forming cyanobacterium, Dolichospermum

Frontiers in Microbiology, 2022
While freshwater cyanobacteria are traditionally thought to be limited by the availability of phosphorus (P), fixed nitrogen (N) supply can promote the growth and/or toxin production of some genera.
Benjamin J. Kramer, Jennifer G. Jankowiak, Deepak Nanjappa, Matthew J. Harke, Christopher J. Gobler   +4 more
doaj   +1 more source

Nitrogen cycling and bacterial production [PDF]

, 1989
I. Bacterial abundance and production in Nueces and Guadalupe Estuaries, Texas -- II. Ammonium regeneration and utilization in Nueces Estuary, Texas -- III.
Benner, R. (Ronald), Yoon, Won-Bae
core   +1 more source

The Influence of Stirring Speed, Temperature and Initial Nitrogen Concentration on Specific Anammox Activity

Brazilian Archives of Biology and Technology, 2018
This study evaluates the influence of initial nitrogen concentration, temperature and stirring speed on specific anammox activity (SAA). The biomass was tested in single batch reactors with different initial nitrogen concentrations (Assay 1) ranging from
Tiago H. Martins, Theo S.O. Souza, Maria Bernadete Amâncio Varesche   +2 more
doaj   +1 more source

Nitrogen Source Affects the Composition of Metabolites in Pepper (Capsicum annuum L.) and Regulates the Synthesis of Capsaicinoids through the GOGAT–GS Pathway

Foods, 2020
Phytochemical analyses of pepper fruit metabolites have been reported; however, much less is known about the influence of different forms of nitrogen (N), which is critical for plant growth and fruit quality formation. The “Longjiao No.
Jing Zhang, Jian Lv, Jianming Xie, Yantai Gan, Jeffrey A. Coulter, Jihua Yu, Jing Li, Junwen Wang, Xiaodan Zhang   +8 more
doaj   +1 more source

Abundant ammonium hydrosulphide embedded in cometary dust grains [PDF]

, 2022
Ammonium hydrosulphide has long since been postulated to exist at least in certain layers of the giant planets. Its radiation products may be the reason for the red colour seen on Jupiter. Several ammonium salts, the products of NH3 and an acid, have previously been detected at comet 67P/Churyumov-Gerasimenko.
arxiv   +1 more source

The effects of inorganic nitrogen form and CO2 concentration on wheat yield and nutrient accumulation and distribution

Frontiers in Plant Science, 2012
Nitrogen (N) is the most limiting nutrient for plant growth and primary productivity. Inorganic N is available to plants from the soil as ammonium (NH4+) and nitrate (NO3–).
Eli eCarlisle, Samuel S Myers, Victor eRaboy, Arnold Jeffrey Bloom   +3 more
doaj   +1 more source

Start-up strategies for nitrification and manganese oxidation on a single stage RSF for drinking water production

Water Supply, 2022
In drinking water production from groundwaters, biological rapid sand filters (RSFs) can be used for ammonium and manganese removal in aerobic conditions. However, in some boreholes, a start-up duration of several months is required to reach the required
Thomas Etcheberry, Matthieu Peyre Lavigne, Rosalia Trias, Stéphane Brunner, Juan Torres Zuluaga, Lodovico Di Gioia, Etienne Paul   +6 more
doaj   +1 more source

Energy-mediated versus ammonium-regulated gene expression in the obligate ammonia-oxidizing bacterium, Nitrosococcus oceani

Frontiers in Microbiology, 2013
Ammonia serves as the source of energy and reductant and as a signaling molecule that regulates gene expression in obligate ammonia-oxidizing chemolithotrophic microorganisms. The gammaproteobacterium, Nitrosococcus oceani, was the first obligate ammonia-
Lisa Y Stein, Mark Alexander Campbell, Martin G Klotz   +2 more
doaj   +1 more source