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View Resource Muscle Loss in Space

In this activity students measure the change in the area of calf muscle from transverse MRI images collected from an astronaut before and after a prolonged journey in space. They measure and compare the total area of calf muscle from before and after flight to determine if muscle loss has occurred. The lesson introduces some reasons for the muscle loss, measures to reduce the loss, and other...

View Resource Photo Fixes

Here learners use WebImage, a Web-based customized version of ImageJ, (a) to investigate the nature of fading in old photographs and (b) to correct it digitally. Several digital images of faded photographs are provided, and, with a simple technique, students can enhance the brightness and contrast of the images. This lesson introduces students to simple image arithmetic with opportunities to...

View Resource Breathing Lessons

Here learners investigate, diagnose, and assess the severity of emphysema in the lungs of three patients using transverse CT images of the upper and lower lungs. Students use the imaging software WebImage, a Web-based customized version of ImageJ, to determine the area of "dead air" in each section and hence the extent of emphysema.

View Resource Animals in Motion

In this lesson, learners use a Flash animation running in a browser to study how animals and humans move. Students examine images captured by Eadweard Muybridge in the late nineteenth century; by starting, slowing, and stopping the animation, learners gain valuable insights into biomechanics of bipeds and quadrupeds.

View Resource Hand it to the Animals

In this lesson, learners examine X-ray images of the "hands" of different animals and then determine the function of each hand from its form. The images are viewed and analyzed with a Web-based customized version of ImageJ.

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