Sentence examples for substances was low from inspiring English sources
Co-consumption of illicit substances was low and similar in both treatment groups.
The number of cases was relatively low and consequently the test power for analyses of various specific substances and combinations of substances was low.
The humic substances are low in fulvic acid-like organic carbon and water-extractable organic carbon (Roletto et al. 1985; Senesi 1989).
Despite the extremely large surface area of the 100 billion capillaries contained in the human brain (approximately 20 m2), the permeability of many substances is low because of the dense anatomical structure of tight junctions between endothelial cells around the capillaries in the central nervous system (CNS).
That is, young people are led to incorrectly believe that these substances are low-risk and safe to use, despite there being no evidence to support this.
In contrast to Castellini and colleagues [ 6], we did not find evidence of an effect of lifetime substance abuse on diagnostic crossover (however the number of patients with comorbid substance abuse was low in our sample).
Alcohol and sedative drug use were not included in the regression model, as use of these substances was very low.
Only a small proportion of the isolates (n = 11, 4.9%) had reduced susceptibility to penicillin, and resistance to other antimicrobial substances was also low (except for cotrimoxazole).
Overshadowed by the looming spending review, it was low on substance and offered nothing more than exhortation.
The additional experiments with ten chemicals and three plant species showed that uptake was low for polar substances of high molecular weight (≥ 394 g/mol) and that TSCF values increased with log Kow values of the tested chemicals ranging from − 1.54 to 1.88 (polynomial equation with R2 = 0.64).
Identifying the main contaminants responsible in effluents, which are complex mixtures of organic and inorganic substances, and ascribing a significance to each (or each group of) contaminant(s) is challenging, particularly when the potency of co-existing substances might be low.
