January 5, 2021by Bob Yirka , Phys.orgA team of researchers with members from the University of North Carolina at Chapel Hill and Colorado State University reports that approximately a third of the rivers in the U.S. have changed color over the past 34 years. In their paper published in the journal Geophysical Research Letters, the group describes their study of thousands of satellite images taken of the U.S. and what they learned from them.River health is important to a large number of people in the U.S. and many other countries, yet, as the researchers in this new effort note, there has...…January 5, 2021by Bob Yirka , Phys.orgA team of researchers with members from the University of North Carolina at Chapel Hill and Colorado State University reports that approximately a third of the rivers in the U.S. have changed color over the past 34 years. In their paper published in the journal Geophysical Research Letters, the group describes their study of thousands of satellite images taken of the U.S. and what they learned from them.River health is important to a large number of people in the U.S. and many other countries, yet, as the researchers in this new effort note, there has...WW…

August 28, 2020by Bob Yirka , Phys.orgA team of researchers affiliated with multiple institutions in the U.K. has discovered how cells are able to travel so accurately through the human body. In their paper published in the journal Science, the group describes a theory they developed to explain cell orienteering and how they tested it using mazes.When the body is injured, such as being poked with a needle, the responds by sending to kill any bacteria that might be trying to enter through the wound. But how do the cells know how to find the wound? Prior research has shown that cells use...…August 28, 2020by Bob Yirka , Phys.orgA team of researchers affiliated with multiple institutions in the U.K. has discovered how cells are able to travel so accurately through the human body. In their paper published in the journal Science, the group describes a theory they developed to explain cell orienteering and how they tested it using mazes.When the body is injured, such as being poked with a needle, the responds by sending to kill any bacteria that might be trying to enter through the wound. But how do the cells know how to find the wound? Prior research has shown that cells use...WW…