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1. An act that requires use of resources or time. In Program Evaluation and Review Technique (PERT), an activity is represented by an arrow on a PERT chart.

2. In investing, the amount of a security's relative trading volume; that is, the amount of money flowing into and out of a security in trading. A high amount of activity means that many shares of the security are being bought and sold at a high rate, while a low level of activity indicates the opposite.


The amount of relative trading volume in a security.
References in periodicals archive ?
At enrollment, participants completed questionnaires that asked about their usual physical activity before their lymphoma diagnosis.
It also adds to existing evidence that can inform upcoming physical activity guidelines over time.
Participants with a history of weight-related teasing accumulated significantly fewer minutes of vigorous physical activity and equivalent moderate and overall levels of physical activity compared to participants not previously teased about their weight.
For this study physical activity was defined as any body movement produced by skeletal muscles resulting in energy expenditure above the basal metabolic rate.
In order to present the results of the physical activity of students from Poland, the study was selected with the largest population examined [5].
International Physical Activity Questionnaire for Adolescents: The International Physical Activity Questionnaire for Adolescents (IPAQ-A), adapted from the International Physical Activity Questionnaire Long Version, was developed for use in adolescents (Hagstromer et al.
We found that vigorous-intensity physical activity in particular, such as activities that increase breathing and heart rates to a high level, was the most effective at lowering risk.
Table 2: Descriptive results of physical activity and health related quality of life.
If any physical activity is undertaken, symptoms are increased.
The purpose of this study was to survey the physical activity knowledge, behaviors, and needs of patrons of Barb Food Mart, a rural food pantry serving low-income families of a DeKalb County School District in Illinois.

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