In the central or conducting airways insoluble materials are cleared by the mucocilliary escalator and are eventually swallowed.
In the peripheral airways insoluble materials are cleared by phagocytosis and/or other cellular clearance mechanisms (Clark et al. 2006).
The teacher's position in relation to the value of the picture book materials is clear as the Engagement meanings are examined in her talk.
Adsorption of naphtoic acid was accomplished by all materials, being clear that an oxygen-rich surface chemistry has a negative effect on the physical adsorption of this molecule.
The typical directional mesopores of PSi etched from highly p-doped material are clear with a slight roughness at the PSi/Si-substrate interface.
Religious books and materials were cleared away and piled against the walls, and a half-dozen long tables with plastic tablecloths held bottles of seltzer, bowls of pickles, piles of rye bread and the occasional prayer book.
Cells or other insoluble materials (debris, crystals and aggregated materials) were cleared from the samples by centrifugation at low speed (2500 rpm, 1 h at 4°C), then 5 ml urine sample aliquots were transferred in polypropylene tubes, lyophilized, and stored at -80°C until their usage.
The Science Photo Library, which supplies this material, is clear in labelling it as artwork (Swine flu website overwhelmed by demand, 24 July, page 1).
