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.
To know the relation between the town concept and its physical expression; To define the formal expression of urban planning; To discuss the morphology characteristics that translate the town concept to be implemented; To adapt professional practices to new architectonic responsibilities.either does it become urban just because architects design blocks of buildings and the outdoors space between. The urban space must be a pre-existence with respect to building projects, which shall successively interpret and carry it out.