منابع مشابه
Ammonia production by intestinal bacteria.
Bacterial growth and the production of ammonia from urea and by deamination of peptone has been examined at various pHs in both conventional static bacterial cultures and in a continuous cultivation system. Growth occurred on primary testing of 93 out of 100 strains of aerobic Gram-negative bacteria at pH 5, and 48 out of 50 strains of Esch. coli at pH 4.6. Hydrolysis of urea by Proteus mirabil...
متن کاملInhibition of biohydrogen production by ammonia.
Ammonia inhibition of biohydrogen production was investigated in batch and continuous flow reactors with glucose as a substrate. In batch tests, biohydrogen production rate was highly dependent on pH and ammonia (defined as the sum of NH3 of NH4+ species) concentrations above 2 g N/L. At pH = 6.2, the maximum production decreased from 56 mL/h at 2 g N/L to 16 mL/h at 10 g N/L. At pH = 5.2, prod...
متن کاملInfluence of potassium on renal ammonia production.
The influence of potassium homeostasis on ammonia production was investigated with both cortical and medullary slices from rat kidney. Renal cortical slices from rats depleted of potassium by dietary restriction produced 31% more NH3 than slices from pair-fed controls. A high-potassium diet for 1 wk diminished ammonia production in cortical slices by 5% in comparison with rats pair fed a normal...
متن کاملfaciliting lexical access for the fluent production of speech
the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...
15 صفحه اولElectrochemical ammonia production on molybdenum nitride nanoclusters.
Theoretical investigations of electrochemical production of ammonia at ambient temperature and pressure on nitrogen covered molybdenum nanoparticles are presented. Density functional theory calculations are used in combination with the computational hydrogen electrode approach to calculate the free energy profile for electrochemical protonation of N2 and N adatoms on cuboctahedral Mo13 nanopart...
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ژورنال
عنوان ژورنال: Gastroenterology
سال: 1979
ISSN: 0016-5085
DOI: 10.1016/s0016-5085(79)80112-2