These are the best wall clocks for form and function

To avoid being overwhelmed by the myriad options when shopping for a clock, consider their key features to find the best wall ...
Nature

Heterogeneity in the chemistry, structure and function of plant cell walls

Heterogeneity in the polysaccharide constituents of plant cell walls has been recognized since the earliest chemical analyses of isolated wall preparations. Clear and dramatic differences in average ...
Nature

Teichoic acids and related cell-wall glycopolymers in Gram-positive physiology and host interactions

Gram-positive bacteria lack regular outer membranes and instead have thickened peptidoglycan cell walls. Within the fabric of the cell wall, Gram-positive bacteria contain additional cell-wall ...