Maternal educational level was based on years of schooling and divided into low educational level (9 years or less), medium educational level 10-12 yearss), and high educational level (more than 12 years).
* < 10 years corresponds to lowest educational level, more than 10 years to a medium to high educational level.
The factors associated with pneumoconiosis in these workers were medium level of exposure, more than 25 years working in underground mining, and medium sized companies.
They found that people were more creative when the background noises were played at a medium level than when volume was low.
SOUND LEVEL More quiet than most steakhouses.
Most (82%) of the transcribed 150-nt biosynthetic genes had a high or medium level of SNP abundance, i.e. more than 10 SNPs per gene, and may be under positive selection for wood properties (33 35).
Exposure of SE to C2D4B medium for more than 3 weeks tended to increase the level of tissue hyperhydricity that impeded subsequent plant development (data not shown).
Most students were females (65%), lived in small towns, in families with both parents, with more than two children and of a low or medium level of education level of their respective parents.
More than half (57.6 %) of the respondents had a medium level of education.
After one century of fire suppression, simulated fire intensity increased to a dangerous level, with more than 3/4 of the fires at a medium-high intensity level.
The cells cultured in the serum medium spread out more than did those in serum-free medium.
