Part of the Software applications glossary: MDI (Multiple Document Interface) is a Microsoft Windows programming interface for creating an application that enables users to work with multiple documents at the same time. Each document is in a separate space with its own controls for scrolling.he user can see and work with different documents such as a spreadsheet, a text document, or a drawing space by simply moving the cursor from one space to another. An MDI application is something like the Windows desktop interface since both include multiple viewing spaces.
Tai Chi and Calories. To lose 1 pound of fat, you must burn 3,500 calories. A 30-minute tai chi session will burn roughly 150 calories for a 155-pound person -- about the same as walking at a moderate pace. Although you don't burn as many calories with tai chi as with more vigorous activities such as jogging, the numbers add up over time, potentially leading to weight loss over the weeks.
These studies included more than 1,500 people. The average age of people in the studies ranged from mid 50s to early 70s. The average length of the tai chi training program was 12 weeks, and most sessions lasted an hour. Tai chi was usually done two to three times a week, the researchers said. Tai chi resulted in improvement in a six-minute walking test; muscle strength (measured by bending and stretching the knees); the time it took to get up and move; and quality of life, the researchers said.