Sentence examples for been described before at from inspiring English sources

The emulsion-enhancing effects of particles of widely varying size has not been described before, at least not in the biodiesel production field, and is clearly different from the creation of Pickering emulsions, which requires small particles and high-energy input.

Prl3b1 expression, which is broad later in gestation, has not been described before E9 at which time Prl3d expression in TGCs begins to decline [ 53].

In vivo, 2 independently occurring network events in the mouse primary visual cortex have been described before and at the onset of vision (Siegel et al. 2012).

It has been described before that FiO2 at levels > 70% alters the PaO2/FiO2: an increase in FiO2 > 70% gradually increases the PaO2/FiO2 [31], particularly at low levels of shunt fraction [32].

The expression of specific markers characteristic of embryonic stem cells have been described before for equine BM-MSCs [ 47] and AT-MSCs [ 40].

Although vascular pathology has been described before, it was mostly shown to occur at relatively high blast exposure levels and in the context of wider neuronal and glial pathology that is not typical of the pathology associated with mTBI.

The frame shift at 408 has never been described before.

The phenomenon has been described before.

This has been described before.

The procedures have been described before [ 20].

These subjects have been described before [ 10].