Results 21 to 30 of about 289,968 (296)

A carbon-efficient bicarbonate electrolyzer [PDF]

open access: yes, 2023
CO2 electroreduction (CO2ER) is a promising route to carbon-neutral production of various chemicals and fuels. Carbon efficiency is one of the most pressing problems for CO2ER today.
Zhen, Zhang   +3 more
core   +1 more source

Metabolic acidosis

open access: yesJournal of Pediatric Critical Care, 2020
Acid–base disturbances are common occurrence in acute care setting, their rapid assessment and analysis are important, and pH of 6.8–7.8 is compatible with life. The definition of acid and base is different for biochemist, physiologist, cook, and others.
Kundan Mittal, H K Aggarwal
doaj   +1 more source

Electrogenic sodium-bicarbonate cotransport in human ciliary muscle cells [PDF]

open access: yes, 1992
We investigated membrane voltage and intracellular pH (pHi) in cultured human ciliary muscle cells using a cell line (H7CM) and primary-cultured human ciliary muscle cells.
Lepple-Wienhues, A.   +9 more
core   +1 more source

pH sensing via bicarbonate-regulated ‘soluble’ adenylyl cyclase (sAC)

open access: yesFrontiers in Physiology, 2013
Soluble adenylyl cyclase (sAC) is a source of the second messenger cyclic adenosine 3',5' monophosphate (cAMP). sAC is directly regulated by bicarbonate (HCO3-) ions. In living cells, HCO3- ions are in nearly instantaneous equilibrium with carbon
Nawreen eRahman   +2 more
doaj   +1 more source

CFTR Protein: Not Just a Chloride Channel?

open access: yesCells, 2021
Cystic fibrosis (CF) is a recessive genetic disease caused by mutations in a gene encoding a protein called Cystic Fibrosis Transmembrane Conductance Regulator (CFTR).
Laurence S. Hanssens   +2 more
doaj   +1 more source

Renal bicarbonate reabsorption during bicarbonate loading

open access: yesKidney International, 1980
To examine bicarbonate reabsorption at different GFR's, we varied the renal perfusion pressure in anesthetized dogs after inhibiting autoregulation by expanding extracellular volume and infusing ethacrynic acid. At a plasma bicarbonate concentration (PHCO3) of 28 +/- 1 mM, bicarbonate reabsorption varied in proportion to GFR (glomerulotubular balance).
Monclair, Tom   +2 more
openaire   +2 more sources

Diel variation in gene expression of the CO2-concentrating mechanism during a harmful cyanobacterial bloom

open access: yesFrontiers in Microbiology, 2016
Dense phytoplankton blooms in eutrophic waters often experience large daily fluctuations in environmental conditions. We investigated how this diel variation affects in situ gene expression of the CO2-concentrating mechanism (CCM) and other selected ...
Giovanni eSandrini   +6 more
doaj   +1 more source

Exogenous Albumin Is Crucial for Pig Sperm to Elicit In Vitro Capacitation Whereas Bicarbonate Only Modulates Its Efficiency

open access: yesBiology, 2021
This work sought to address whether the presence of exogenous bicarbonate is required for pig sperm to elicit in vitro capacitation and further progesterone-induced acrosome exocytosis. For this purpose, sperm were either incubated in a standard in vitro
Bruna Resende Chaves   +7 more
doaj   +1 more source

Using small molecules to facilitate exchange of bicarbonate and chloride anions across liposomal membranes [PDF]

open access: yes, 2009
Bicarbonate is involved in a wide range of biological processes, which include respiration, regulation of intracellular pH and fertilization. In this study we use a combination of NMR spectroscopy and ion-selective electrode techniques to show that the ...
Oluyomi A. Okunola   +13 more
core   +1 more source

QUALITY EVALUATION OF SOME BOTTLED WATERS AVAILABLE IN IRAQI MARKET

open access: yesJournal of Engineering and Sustainable Development, 2021
This study was intended to evaluate the quality of some bottled waters available in Iraqi market, by testing their physical, chemical and biological characteristics.
Mohammed A. Rashid, Nagam O. Kariem
doaj   +1 more source

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