Sentence examples for absence of base from inspiring English sources

Typical unconformities are absent due to the absence of base level fall.

A number of aliphatic and aromatic unsaturated alcohols were oxidized using oxygen as an oxidant with these as-prepared catalysts at 60 °C in the absence of base.

A new vibrational band, ir inactive and probably due to complexation effects, is seen at about 896 cm−1 in the Raman spectra of some of the complexes studied in the absence of base.

Three distinct strategies could be then successfully employed to achieve the grafting of the complex, namely i) the electroreduction of the corresponding in situ produced diazonium cation, ii) the electrooxidation of the aromatic amine moiety in the presence of a base and iii) an anodic electropolymerization in the absence of base.

Methodological challenges to assessing risk are also presented including lack of reliability and validity of measures, definitional dilemmas, temporal issues such as changes in risk over time, absence of base rate data, predicting for individuals and sensitivity and specificity of measures.

The positive value indicates the absence of base exchange.

The ECP method heavily relies on characteristic positional absence of nucleotide base types.

The disappointments of Nasa, the failure to return to the moon, the absence of bases on Mars – it seems that humanity's appetite for new worlds has dwindled, our courage failed.

In the absence of bases there, fighter planes could operate from Diego Garcia in the Indian Ocean, from Bahrain and from three aircraft carriers -- one British and two American -- in the Persian Gulf.

The positive value of CAI represents the absence of base-exchange reactions and the existence of cation anion exchange type of reactions (Raju 2007).

11.1 % of the boreholes were positive indicating the absence of base-exchange reactions but rather the existence of cation anion exchange reactions.