1 Aden, Yemen is at 12 49'N, 45 1'E, 3 m (10 ft). 2  See map. 3  Aden has a subtropical desert / low-latitude arid hot climate (K ppen-Geiger classification: BWh). 4  The annual average temperature is 29.2 degrees Celsius (84.5 degrees Fahrenheit).
The core of a sphingolipid is an amino alcohol called sphingosine. Complex sphingolipids located in the plasma membrane of animal cells (especially nerve cells) have a structural function and are believed to protect the cell surface from harmful environmental factors.
Glycosaminoglycans (GAGs). * A family of carbohydrates that help with the maintenance and support of collagen and elastin. Functions: Glycosaminoglycans' primary role is to maintain and support collagen, elastin and turgidity (bounce) in the cellular spaces and keep protein fibers in balance and proportion.It also promotes the ability of the collagen and elastin fibers to retain moisture, therefore remaining soluble (Source).AGs are important in the reaction of copper peptides to help repair wrinkles and scarring. Known as the water reserve of the viable epidermis and dermis, these carbohydrates are dependent on fluid intake. Glycosaminoglycans are also linked to the lymphatic system.