Rice University and Texas Heart Institute researchers are studying the use of soft, flexible fibers made of carbon nanotubes to restore electrical conductivity to damaged heart tissue.
Bio & Medicine
Aug 17, 2015
0
62
With COVID-19 cases and deaths rising in the U.S. and globally, identifying new therapies to prevent and combat the virus is a top priority. Natural products from plants are an attractive option in the search for a cure. ...
Plants & Animals
Aug 19, 2020
2
921
A new bacterium that uses caffeine for food has been discovered by a doctoral student at the University of Iowa. The bacterium uses newly discovered digestive enzymes to break down the caffeine, which allows it to live and ...
Cell & Microbiology
May 24, 2011
4
0
In intensive care Units (ICU), every second counts. In emergencies, doctors and nurses need to make the right decisions quickly. Fraunhofer researchers have developed a smart "proxemic monitor" which has optimized the processes ...
Hi Tech & Innovation
Feb 1, 2016
0
19
A new study of dolphins and seals shows that despite their remarkable adaptations to aquatic life, exercising while holding their breath remains a physiological challenge for marine mammals. The study, published January 15 ...
Plants & Animals
Jan 16, 2015
0
96
The next time you take aspirin for a headache, thank a willow tree. Salicylic acid, a compound chemically similar to aspirin, is found in willow tree bark and is made by the plant as a chemical defense against pathogens. ...
Biotechnology
Nov 1, 2011
0
0
The Equine Cardioteam, led by Prof Gunther van Loon, has treated a Norwegian showjumper stallion with a cardiac arrhythmia by ablation. The horse had been successfully treated by electroshock therapy several times but showed ...
Other
Apr 30, 2018
0
302
As it turns out, humans aren't the only organisms that turn to caffeine for a pick-me-up. University of Iowa scientists have identified four different bacteria that actually can live on caffeine.
Cell & Microbiology
Jun 7, 2011
0
0
A team of scientists headed by Maik Behrens from the Leibniz-Institute for Food Systems Biology at the Technical University of Munich has identified the receptor responsible for the bitter taste of various salts. These include ...
Biochemistry
Apr 9, 2019
0
11
Computational models of the human heart can be very useful in studying not just the basic mechanisms of heart function, but also to analyze the heart in a diseased state, and come up with methods for diagnosis and therapy.
Mathematics
Apr 10, 2013
0
0
Cardiac arrhythmia (also dysrhythmia) is a term for any of a large and heterogeneous group of conditions in which there is abnormal electrical activity in the heart. The heart beat may be too fast or too slow, and may be regular or irregular.
Some arrhythmias are life-threatening medical emergencies that can result in cardiac arrest and sudden death. Others cause symptoms such as an abnormal awareness of heart beat (palpitations), and may be merely annoying. Still others may not be associated with any symptoms at all, but predispose toward potentially life-threatening stroke or embolus.
Some arrhythmias are very minor and can be regarded as normal variants. In fact, most people will sometimes feel their heart skip a beat, or give an occasional extra strong beat neither of these is usually a cause for alarm.
The term sinus arrhythmia refers to a normal phenomenon of mild acceleration and slowing of the heart rate that occurs with breathing in and out. It is usually quite pronounced in children, and steadily decreases with age. This can also be present during meditation breathing exercises that involve deep inhaling and breath holding patterns.
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