When an allergic individual is exposed to a sensitizing allergen, the body makes a specific IgE, one that is able to recognize only that allergen. (see above chart). Millions of mast cells and basophils are all over the body.
Urban morphology is the study of the form of human settlements and the process of their formation and transformation. The study seeks to understand the spatial structure and character of a metropolitan area, city, town or village by examining the patterns of its component parts and the process of its development.
Click image for urban design projects. The art of creating and shaping cities and towns. Urban design involves the arrangement and design of buildings, public spaces, transport systems, services, and amenities. Urban design is the process of giving form, shape, and character to groups of buildings, to whole neighborhoods, and the city.