Sentence examples for have often been derived from inspiring English sources

In such applications, because of uncertainties in the available density structure models, the density heterogeneities have often been derived by scaling (multiplying some constants as functions of depth) the velocity heterogeneities in tomography models.

In our laboratory, equal amount of stock solutions A (0.5 g sodium carbonate-anhydrous, 100 ml DW) and B (0.2 g silver nitrate, 1 g tungusto-silicic acid, 0.2 g ammonium nitrate, formalin 0.73 ml, 100 ml DW) are mixed immediately before use Improvements in silver-staining methods have often been derived from chemistry.

So far, diving dynamics of an AUV has often been derived under various assumptions on the motion of the vehicle.

Information on determinants of biodiversity patterns in ecological studies has often been derived from traditional regression methods [ 5].

The evidence for a reduction in risk associated with consumption of vegetables and fruit has often been derived from case-control studies.

This methodological approach however still requires validation in population surveys [ 37] and in resource limited settings, the prevalence of iron deficiency has often been derived from the prevalence of anaemia using measurements of blood haemoglobin [ 38– 40], and red cell indices [ 41].

Because of the potential loss of plastids, algal genes in aplastidic eukaryotes have often been interpreted as derived from historical plastids.

As a result, land snails and slugs have often been regarded as the most derived -and thus most recent - lineage of pulmonates.

Large randomized controlled trials (RCTs) failed to demonstrate an impact of PAC use on patient outcomes [ 16, 17], but this is not so surprising because the effectiveness of PAC use relies on the accuracy and application of the derived data, which have often been suboptimal, and the availability of effective treatments for the identified condition.

Gametes, zygotes, embryos and/or cell cultures derived from elite livestock or endangered animals have often been cryopreserved in 'Gene Banks' [7], [8].

They have often been rebuffed.