According to the Environmental Protection Agency, a GIS, which refers to Geographic Information System, works by combining database functions with computer mapping to map and analyze geographic data. It uses a "layering"... More »

The G.I., or glycemic-index, diet works by having dieters track the glycemic index of the carbohydrates they eat. Foods with a high glycemic index make blood sugar rise quickly, causing insulin to be released, which in t... More »

www.reference.com Health Nutrition & Diets

A GI doctor is a gastroenterologist, a doctor whose area of expertise is the digestive system. According to the American Gastroeneterological Society, the digestive system includes the intestines, liver, pancreas and gal... More »

www.reference.com Health Conditions & Diseases Gastrointestinal Issues

Geographic information system mapping is designed to capture, store, manage and analyze spatial or geographical data. Information obtained from such systems is often used to create different maps representing given regio... More »

www.reference.com Geography Maps & Cartography

Disadvantages of using a geographic information system, or GIS, are that its technical nature might portray results as being more reliable than they actually are, and errors and assumptions can be hidden, leading to a la... More »

A Geographic Information System, or GIS, consists of software and hardware which incorporate data in order to hold, analyze and display information concerning specific geographic regions. Local county governments in the ... More »

www.reference.com Geography

Online mapping services like Batchgeo let users plot multiple locations just by entering addresses. This in turn generates a comprehensive map incorporating all of the addresses to form a complete picture of a given area... More »

www.reference.com Geography Maps & Cartography