Results 11 to 20 of about 1,918,798 (195)

Quaternary ammonium compounds – New occupational hazards [PDF]

open access: yesMedycyna Pracy, 2014
Quaternary ammonium compounds (QACs, quats) belong to organic ionic chemical agents which display unique properties of both surfactants and disinfectants.
Agnieszka Lipińska-Ojrzanowska   +1 more
doaj   +3 more sources

Reproductive & developmental toxicity of quaternary ammonium compounds†. [PDF]

open access: yesBiol Reprod
Quaternary ammonium compounds are a class of chemicals commonly used as disinfectants in household and healthcare settings. Their usage has significantly increased in recent years due to the COVID-19 pandemic.
Bobic L, Harbolic A, Warner GR.
europepmc   +2 more sources

RESPONSE OF THE OLIVE FRUIT FLY, Bactrocera oleae ROSSI TO SOME AMMONIUM COMPOUNDS AND CERTAIN FOOD ATTRACTANTS UNDER FIELD CONDITIONS IN OLIVE ORCHARDS [PDF]

open access: yesJournal of Plant Protection and Pathology, 2012
The olive fruit fly, Bactrocera oleae Rossi is a serious pest attacking olive fruits causing a quantitive and qualitative damages. The response of olive fruit fly adults to some ammonium compounds and certain food attractants was evaluated under field ...
M. El-Metwally
doaj   +1 more source

Alkylphosphocholines and quaternary ammonium compounds against acanthamoeba keratitis [PDF]

open access: yes, 2020
Acanthamoeba keratitis (AK) is a sight threatening infection caused by the free-living amoeba Acanthamoeba. This infection is largely associated with contact lens wear and the recent increase in AK incidences highlights the ineffectiveness of existing ...
Williams, Roderick A.M., Mooney, Ronnie
core   +2 more sources

Hygroscopicity of organic compounds from biomass burning and their influence on the water uptake of mixed organic ammonium sulfate aerosols [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Hygroscopic behavior of organic compounds, including levoglucosan, 4-hydroxybenzoic acid, and humic acid, as well as their effects on the hygroscopic properties of ammonium sulfate (AS) in internally mixed particles are studied by a hygroscopicity tandem
T. Lei   +4 more
doaj   +1 more source

Development of novel effective agents from 1H-indolylammonium trifluoroacetates effective against conditionally pathogenic microorganisms [PDF]

open access: yesResearch Results in Pharmacology, 2022
Introduction: The problem of antibiotic resistance of microorganisms is becoming more urgent in the twenty-first century. More and more pathogenic microbes are becoming resistant to two or more antibiotics. This problem has become worse into the COVID-19
Irina S. Stepanenko   +4 more
doaj   +3 more sources

Synthesis of the Ammonium Salt of 6-Amino-2-hydroxy- 3,5-dinitropyrazine and a Comparison of its Properties with those of Ammonium 3,5-Diaminopicrate (ADAP) [PDF]

open access: yes, 2009
The ammonium salt of 6-amino-2-hydroxy-3,5-dinitropyrazine has been synthesised from 2,6-dimethoxy-3,5-dinitropyrazine and its properties [DSC, crystal structure, impact sensitiveness, thermochemical properties] are compared with the analogous benzene ...
Padfield, James   +9 more
core   +1 more source

Ammonium Phenylphosphonamidodiselenoates and Phenylphosphonamidodi-selenoic Diamides from the Selenation of Primary and Secondary Amines [PDF]

open access: yes, 2014
The authors are thankful to the University of St Andrews and the Engineering and Physical Science Research Council (EPSRC, U.K.) for financial support.By reacting two equivalents of primary or secondary amines with 2,4-bis(phenyl)-1,3 ...
Woollins, J. Derek   +3 more
core   +1 more source

Changes of inorganic nitrogen compounds concentration in a mining enterprise wastewater by the microalgae Chlorella vulgaris

open access: yesVestnik MGTU, 2023
Wastewater contamination by nitrogen compounds is a serious problem for the mining, industrial and utility companies. Nitrogen can enter quarry effluent when explosives containing ammonium nitrate are used in blasting operations.
Shcheglov G. A.
doaj   +1 more source

Ammonium toxicity and potassium limitation in yeast. [PDF]

open access: yesPLoS Biology, 2006
DNA microarray analysis of gene expression in steady-state chemostat cultures limited for potassium revealed a surprising connection between potassium and ammonium: potassium limits growth only when ammonium is the nitrogen source.
David C Hess   +3 more
doaj   +1 more source

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