More than 15.3 million people in the U.S. suffer from chronic obstructive pulmonary disease (COPD), which is the third leading cause of death in this country, according to the American Lung Association. Patients often experience potentially life-threatening exacerbations, which can include days-long flare-ups of symptoms including shortness of breath that occur when the airways narrow from muscle tightness, swelling and mucus.
* This article was originally published here
Monday, 20 May 2019
High-quality jadeite tool discovered in underwater ancient salt works in Belize
Anthropologists discovered a tool made out of high-quality translucent jadeite with an intact rosewood handle at a site where the ancient Maya processed salt in Belize. The discovery of these high-quality materials—jadeite and rosewood—used as utilitarian tools, demonstrates that salt workers played an important role in the Classic Maya marketplace economy more than 1,000 years ago.
* This article was originally published here
* This article was originally published here
When an aircraft landing system is made to enter the spoofing zone
Just what the airplane passenger who is always skittish does not want to hear: Radio navigation on planes for landing purposes is not secure; signals can be hacked.
* This article was originally published here
* This article was originally published here
Dog-like robot jumps, flips and trots
Putting their own twist on robots that amble through complicated landscapes, the Stanford Student Robotics club's Extreme Mobility team has developed a four-legged robot that is not only capable of performing acrobatic tricks and traversing challenging terrain but is also designed with reproducibility in mind. Anyone who wants their own version of the robot, dubbed Stanford Doggo, can consult comprehensive plans, code and a supply list that the students have made freely available online.
* This article was originally published here
* This article was originally published here
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