(Phys.org) —It was a big week for scientists studying the cosmos as a radio-burst discovery deepens astrophysics mystery—a very short burst of radio waves indicates a mysterious pulse came from the outer regions of space. ...
(PhysOrg.com) -- Shattering their own world record from two years ago, scientists from the University of Birmingham in the UK have created the unofficial world’s smallest atomic valentine. Their tiny heart measures approximately ...
Researchers from the University of Edinburgh, Scotland, and the University of Cantabria, Spain, have teamed up to develop an AI trained to discover senolytic medicinal chemistry in familiar compounds.
Research in animal models has demonstrated that stem-cell derived heart tissues have promising potential for therapeutic applications to treat cardiac disease. But before such therapies are viable and safe for use in humans, ...
Bio & Medicine
Mar 8, 2023
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While air quality has improved dramatically over the past 50 years thanks in part to the Clean Air Act, people of color at every income level in the United States are still exposed to higher-than-average levels of air pollution.
Environment
Oct 24, 2022
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A team of researchers at the California Institute of Technology, working with one colleague from The Francis Crick Institute and another from the University of Cambridge, both in the U.K., has developed a way to grow mouse ...
Astronauts are at higher risk for developing mutations—possibly linked to spaceflight—that can increase the risk of developing cancer and heart disease during their lifetimes, according to a first-of-its kind study from ...
Space Exploration
Aug 31, 2022
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Researchers from the University of Cambridge and Caltech have created model mouse embryos from stem cells—the body's master cells, which can develop into almost any cell type in the body—that have beating hearts, as well ...
Biotechnology
Aug 25, 2022
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An MDC research team led by Jan Philipp Junker and Daniela Panáková has found that zebrafish can regenerate heart tissue after injury. Connective tissue cells play an important role in the process by temporarily entering ...
Cell & Microbiology
Jul 21, 2022
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When researchers working on the Human Genome Project completely mapped the genetic blueprint of humans in 2001, they were surprised to find only around 20,000 genes that produce proteins. Could it be that humans have only ...
Biotechnology
Jul 13, 2022
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The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."
The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.
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