Sentence examples for hitherto proved from inspiring English sources

As I read, I pondered briefly why the writing quality was so abject, even in the cases of students who had hitherto proved their verbal proficiency.

The latter charge, introduced in the 2005 Gambling Act, is untested in a British court and could provide prosecutors with a way to deal with sporting corruption cases for which obtaining convictions have hitherto proved difficult.

A major focus of the ATOL plastid genome sequencing project is the use of whole-chloroplast genome sequence data to determine the evolutionary relationships among the basal lineages of eudicots, which have hitherto proved difficult to resolve [ 23].

Although recommended by both the Royal College of Nursing and National Institute for Clinical Excellence, 2, 9 this has hitherto proved refractory to implement at caesarean section against a background of ritualised obstetric and midwifery routines.

The quick response (QR) code has hitherto proven uninspiring.

Radiotherapy and chemotherapy have hitherto proven not to be efficient enough for cure (Sheline, 1977; Stenning et al, 1987).

Moreover, an optimal hierarchy has hitherto proven elusive, as large numbers of different orderings comply equally well with the constraints provided by the anatomical data (Hilgetag et al. 1996, 2000a).

Firstly a deep mine ventilation air cooling concept is explained and secondly, gas solubility, that hitherto has proved problematic for HACs, is turned to advantage in a carbon capture concept.

A useful application of this technique would be to generate genetic mutations in Drosophila cell lines, which hitherto has proved impossible.

They draw on a well-known target function for clustering and first show mathematically that the assignment of atoms to clusters has to be crisp, not fuzzy, as hitherto assumed, proving that this method reduces the computational load of clustering drastically, demonstrating results for several biomolecules relevant in immunoinformatics.

On May 8 , 1907 the President wrote Saint-Gaudens, "It has proved hitherto impossible to strike them by one blow, which is necessary under the conditions of making coins of the present day".