A team of researchers affiliated with a host of institutions in the U.S. has found a sample of a mineral previously believed to be unable to exist in nature. In their paper published in the journal Science, the group describes ...
For 30 years, mysterious clusters of proteins found on the cell body of neurons in the hippocampus, a part of the brain, both intrigued and baffled James Trimmer.
Cell & Microbiology
Nov 10, 2021
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1006
Most groups of modern animals had their beginnings more than half a billion years ago in an amazing evolutionary event known as the Cambrian Explosion.
Paleontology & Fossils
Oct 28, 2021
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24
A team of researchers at Georgia State University has developed a novel approach for detecting the activity of calcium within cells. The study, led by Regents' Professor of Chemistry Jenny Yang, demonstrates the effectiveness ...
Cell & Microbiology
Oct 19, 2021
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118
One can easily see with the naked eye that leaving an old nail out in the rain causes rust. What does require the keen eyes and sensitive nose of microscopy and spectroscopy is observing how iron corrodes and forms new minerals, ...
Materials Science
Oct 13, 2021
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80
A new kind of concrete could reduce emissions from the construction industry. Calcium carbonate concrete is made from waste concrete and carbon dioxide from the air or industrial exhaust gasses. It shows promise as a future ...
Materials Science
Oct 07, 2021
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261
Zeolites could be considered as nature's workhorse.
Earth Sciences
Oct 07, 2021
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119
Researchers at Pacific Northwest National Laboratory (PNNL) have developed seaweed-based inks and materials for developing colorful 2D and 3D shapes and models.
Polymers
Oct 07, 2021
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34
Getting your day started sometimes feels like it requires magic, but making a good cup of tea requires a little science. In Physics of Fluids, researchers from ETH Zurich describe how they applied the science of rheology ...
Condensed Matter
Sep 07, 2021
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80
With a technique that overcomes cells' innate social behaviors, researchers have taken an important step in directing skin cells to migrate en masse to close wounds—"literally making skin crawl," said principal investigator ...
Cell & Microbiology
Aug 31, 2021
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320
Calcium (pronounced /ˈkælsiəm/) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth's crust. Calcium is also the fifth most abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate.
Calcium is essential for living organisms, particularly in cell physiology, where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bones and shells, calcium is the most abundant metal by mass in many animals.
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