The fossil calciferous skeletons of single-celled foraminifers are a beautiful history book with information on CO2-levels in the oceans of the distant past.
Earth Sciences
Nov 27, 2023
0
47
AMOLF researchers have used the special properties of perovskite semiconductors to develop a simple spray test to demonstrate the presence of lead. Perovskite is a material suitable for use in LEDs and solar cells, for example. ...
Analytical Chemistry
Nov 27, 2023
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72
A study published in the journal Function highlights the importance of not investigating exon splicing in isolation. Exon splicing is the process by which introns are removed from pre-mRNA and exons are spliced back together.
Cell & Microbiology
Nov 20, 2023
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1
Farmers add calcium to their soil for many reasons related to increasing crop yields—including regulating pH and improving soil structure.
Ecology
Nov 20, 2023
1
97
Vaterite is one of the three forms of calcium carbonate, along with calcite and aragonite. Nanosized vaterite is valuable for various applications, such as drug delivery, cosmetics, and bone defect filling, owing to its biocompatibility, ...
Bio & Medicine
Nov 7, 2023
0
15
Stretchable polymeric fibers have significant impact, although their production requires rigorous environmental methods and resource consumption. The process is challenging for elastic polymers with reduced spinnability and ...
Four threatened and endangered plant species growing in the San Bernardino National Forest will have an opportunity to thrive following the adoption of a plan by the U.S. Bureau of Land Management and U.S. Forest Service ...
Plants & Animals
Oct 23, 2023
0
40
In a promising breakthrough for dietary supplements, researchers led by Associate Prof. Dong Lin at Guiyang University, China, have successfully synthesized mung bean peptides–calcium chelate (MBP-Ca), offering an eco-friendly ...
Biochemistry
Oct 19, 2023
0
14
The genome of the SARS-CoV-2 virus encodes 29 proteins, one of which is an ion channel called E. This channel, which transports protons and calcium ions, induces infected cells to launch an inflammatory response that damages ...
Biochemistry
Oct 13, 2023
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56
Florida State University scientists have uncovered answers to a conundrum in Earth's history: Why did marine life experience an extraordinary boom millions of years ago?
Earth Sciences
Oct 12, 2023
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9
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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