Results 31 to 40 of about 1,249,363 (328)
mSystems, 2022 Mineral nitrogen (N) is a major nutrient showing strong fluctuations in the environment due to anthropogenic activities. The acquisition and translocation of N to forest trees are achieved mainly by highly diverse ectomycorrhizal fungi (EMF) living in ...
Carmen Alicia Rivera Pérez +4 more
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Repurposing Quaternary Ammonium Compounds as Potential Treatments for COVID-19
Pharmaceutical Research, 2020 The COVID-19 pandemic has highlighted an important role for drug repurposing. Quaternary ammonium compounds such as ammonium chloride, cetylpyridinium and miramistin represent widely accessible antiseptic molecules with well-known broad-spectrum ...
Nancy C. Baker +3 more
semanticscholar +1 more source
Modeling Residence Time Distribution (RTD) Behavior in a Packed-Bed Electrochemical Reactor (PBER)
International Journal of Chemical Engineering, 2019 This paper focuses on understanding the electrolyte flow characteristics in a typical packed-bed electrochemical reactor using Residence Time Distribution (RTD) studies.
Sananth H. Menon, G. Madhu, Jojo Mathew
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Frontiers in Marine Science, 2021 Ammonium is a fundamental nutrient for phytoplankton growth in seawater and is a key component of the microbial loop. Ammonium measured in parallel with other nutrients is crucial in understanding the small temporal scale changes in oceanographic ecology.
Christine Rees +9 more
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Frontiers in Plant Science, 2021 Nitrate and ammonium are the main nitrogen sources in agricultural soils. In the last decade, ammonium (NH4+), a double-sided metabolite, has attracted considerable attention by researchers.
María Begoña González-Moro +8 more
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Aqueous ammonium thiocyanate solutions as refractive index-matching fluids with low density and viscosity [PDF]
Exp. Fluids 57, 123 (2016), 2016 We show that aqueous solutions of ammonium thiocyanate (NH4SCN) can be used to match the index of refraction of several transparent materials commonly used in experiments, while maintaining low viscosity and density compared to other common refractive index-matching liquids.
arxiv +1 more source
Endophytic Expression of nif Genes of Azoarcus sp. Strain BH72 in Rice Roots
Molecular Plant-Microbe Interactions, 1999 Transcriptional fusions of gusA and gfp to the nifH gene as well as immunogold labeling with antibodies against the iron protein of nitrogenase revealed high nitrogenase gene expression levels of the endophyte Azoarcus sp.
Tanja Egener +2 more
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DIFFERENT NITRATE AND AMMONIUM LEVELS MEDIA ON CHANGES OF NITROGEN ASSIMILATION ENZYMES IN RICE
Biovalentia: Biological Research Journal, 2021 Nitrogen (N) is an important nutrient for the growth and development of rice plants, required in large quantity and often limiting factor of rice yields.
Tri Handoyo +2 more
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Genetic Basis of Ammonium Toxicity Resistance in a Sake Strain of Yeast: A Mendelian Case. [PDF]
, 2013 High concentrations of ammonium at physiological concentrations of potassium are toxic for the standard laboratory strain of Saccharomyces cerevisiae In the original description of this metabolic phenotype, we focused on the standard laboratory strains ...
Botstein, David +5 more
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THE TORSIONAL VIBRATIONS OF THE AMMONIUM IONS IN AMMONIUM IODIDE AND AMMONIUM BROMIDE [PDF]
Chemistry Letters, 1973 Abstract The far-infrared spectra of NH4I and NH4Br have been measured at temperatures of −223 to −53 °C. The torsional vibrations of the NH4+ ions in the phase III crystalline salts were observed at 301 cm−1 for NH4I at −223 °C and at 348 cm−1 for NH4Br at −166 °C.
openaire +2 more sources