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Circulating levels of hydrogen sulphide negatively correlate to nitrite levels in gestational hypertensive and preeclamptic pregnant women
(2021-09-01)
Endothelial dysfunction is a hallmark of preeclampsia and the role of nitric oxide (NO) has been extensively studied in this pregnancy complication. In recent years, hydrogen sulphide (H2S) has arisen as a new gasotransmitter ...
Increases in placental nitric oxide, but not nitric oxide-mediated relaxation, underlie the improvement in placental efficiency and antihypertensive effects of hydrogen sulphide donor in hypertensive pregnancy
(2018-11-01)
Dysregulation of hydrogen sulphide (H2S) producing enzymes has been related to hypertensive pregnancy, and H2S donor, sodium hydrosulphide (NaHS) exerts antihypertensive effects, modulates angiogenic factors production and ...
Can hydrogen sulphide gas be produced during alkaline leach of enargitic copper concentrates?
(Elsevier B.V., 2019)
© 2019 Elsevier B.V. The usual answer to the question stated in the title of this manuscript would be a definitive no due to the high stability of dissolved sulphide ions in water under strong alkaline conditions; nevertheless, ...
Avaliação da geração do sulfeto de hidrogênio e seus riscos à saúde do trabalhador em estação de tratamento de esgoto
(Universidade Tecnológica Federal do ParanáCuritibaBrasilEspecialização em Engenharia do TrabalhoUTFPR, 2017-04-19)
Gaseous chemical agents from STPs formed from anaerobic processes at sewage treatment plants pose risks to their operators in the workplace. Thus, the overall objective of this monograph was to conduct a quantitative gas ...
Colloidal sulphur production by electrochemical oxidation of sulphide in a swirling flow reactor
(Royal Society of Chemistry, 2021-10)
A cylindrical reactor with swirling flow is tested for the production of colloidal sulphur via the oxidation of sulphide ions with a concentration of 2 g dm−3 in alkaline solutions at 80 °C. Polysulphides are anodically ...
Dessulfurização biológica – estudo de caso com microaeração em biodigestor de lagoa coberta
(Universidade Tecnológica Federal do ParanáMedianeiraBrasilTecnologias da Cadeia Produtiva do BiogásUTFPR, 2019-05-04)
Biogas is produced from the anaerobic digestion of different substrates, are composed basically of methane, carbon dioxide, oxygen, hydrogen and hydrogen sulfide. The h2s combined with humidity can cause serious damage to ...
On the role of charge transfer in the stabilization of weakly bound complexes involving water and hydrogen sulphide molecules
(2012)
Integral cross section data for collisions of water and hydrogen sulphide molecules with noble gas atoms, measured with the same apparatus under identical conditions and analyzed by exploiting the same potential model, ...
Dimensional analysis applied to jacketed shell and tube heat exchangers modeling
(Universidad UTE, 2021)