THERE is probably no skin disease of greater importance to the human race than acne. It is undoubtedly our commonest skin disease, and it is rare that any individual reaches maturity without having had it in one of its phases. It is a disease of considerable economic importance, as the disfiguring scars of a severe case are never completely obliterated. It is also a disease of youth. It attains...

Lipids are undoubtedly the major constituents of cell membranes all living organisms, and most efficient source energy [...]

Undoubtedly, polymers and composites are the most important materials in late XXth early XXIst century [...]

Water is undoubtedly the most valuable resource of human society and an essential component ecosystem [...]

The worldwide development of clean and low-carbon energy is undoubtedly imperative in the coming decades [...]

The 'jewel in the crown' from the MIT90s [Management in the 90s] program is undoubtedly the Strategic Alignment Model (SAM) of Henderson and Venkatraman.