Calcium has a higher electrical resistivity than copper or aluminium, yet weight-for-weight, due to its much lower density, it is a rather better conductor than either.

Calcium has four stable isotopes (< sup > 40 </ sup > Ca, < sup > 42 </ sup > Ca, < sup > 43 </ sup > Ca and < sup > 44 </ sup > Ca ), plus two more isotopes (< sup > 46 </ sup > Ca and < sup > 48 </ sup > Ca ) that have such long half-lives that for all practical purposes they also can be considered stable.

Calcium also has a cosmogenic isotope, radioactive < sup > 41 </ sup > Ca, which has a half-life of 103, 000 years.

Calcium isotope fractionation during mineral formation has led to several applications of calcium isotopes.

Calcium channel blockers have been used to treat Alzheimer ’ s disease with some success, and the use of lithium to decrease IP < sub > 3 </ sub > turnover has also been suggested as a possible method of treatment.

Calcium carbonate has two forms, the stable calcite, and the metastable aragonite, which is stable within a reasonable range of chemical environments but rapidly becomes unstable outside this range.

Calcium lactate added to toothpaste has reduced calculus formation.

Calcium Causes the contraction of muscles, removing the TpI subunit from Myosin head which has ATPase activity to cause contraction.

A study has suggested that low Calcium causes soil acidification and increased toxicity caused by metallic elements such as Aluminium may be causing the dieback.

The company is an independent film production arm run by Natascha Wharton, and has produced films that include Billy Elliot, Shaun of the Dead and The Calcium Kid.

One such mechanism to detect low calcium concentration has been illustrated by the lcrV ( Low Calcium Response ) antigen utilized by Yersinia pestis, which is used to detect low calcium concentrations and elicits T3SS attachment.

Studies in Chembur has also found high levels of Copper, Chromium, Calcium, Arsenic and Mercury in ground water.

Calcium aluminosilicate, an aluminosilicate compound with calcium cations, most typically has formula CaAl < sub > 2 </ sub > Si < sub > 2 </ sub > O < sub > 8 </ sub >.

A study released by Creighton University has shown Calcium and Vitamin D supplementation, even over a short period, can significantly reduce stress fractures in female military recruits.

This inhibition of voltage-gated Calcium channels by G protein-coupled receptors has been demonstrated in the dorsal root ganglion of a chick among other cell lines.

Calcium ( Ca ) has a total of 24 isotopes, from < sup > 34 </ sup > Ca to < sup > 57 </ sup > Ca.

Calcium also has a cosmogenic isotope, radioactive < sup > 41 </ sup > Ca, which has a half-life of 102, 000 years.

Calcium, phosphorus and iron are present in worthwhile amounts, and eleven other minerals also have been found in varying trace amounts.

Calcium propionate is commonly added by commercial bakeries to retard the growth of molds.

* Calcium, salt ( sodium and chloride ), magnesium, and potassium ( along with phosphorus and sulfur ) are sometimes added to the list of macronutrients because they are required in large quantities compared to other vitamins and minerals.

Calcium and carbon are added.

Calcium sulfonates additives are also added to protect motor oil from oxidative breakdown and to prevent the formation of sludge and varnish deposits.

in other words, each 1 g / dL decrease of albumin will decrease 0. 8 mg / dL in measured serum Ca and thus 0. 8 must be added to the measured Calcium to get a corrected Calcium value.

Calcium is omitted, but can be added to deal with situations in which it plays a significant role.

Calcium also may be added at a minimum of 960 milligrams per pound.

* Calcium Chloride ( CaCl < sub > 2 </ sub >, often added to salt to lower its working temperature )

Calcium and magnesium are added to a molten lead-bismuth bath.

Calcium silicate ( CaSiO < sub > 3 </ sub >), a commonly used anti-caking agent, added to e. g. table salt, absorbs both water and oil.

* Calcium phosphate ( Ca < sub > 3 </ sub >( PO < sub > 4 </ sub >)< sub > 2 </ sub >) is used as a supplement for animal feed, fertilizer, in commercial production for dough and yeast products, in the manufacture of glass, and in dental products.

Calcium was needed for agricultural, pharmaceutical and paint products.

Calcium alginate is used in different types of medical products, including burn dressings that promote healing and can be removed with less pain than conventional dressings.

The Calcium carbonate, from which coral skeletons are made is just over 60 % Carbon dioxide.

Calcium phosphide is often used in naval flares, as in contact with water it liberates phosphine which self-ignites in contact with air ; it is often used together with calcium carbide which releases acetylene.

Calcium and Magnesium will be lacking in coir potting mixes, so a naturally good source of these nutrients is dolomitic lime which contains both.

The phosphorylation events lead to a decrease in intracelluar calcium ( inhibit L type Calcium channels, inhibits IP3 receptor channels, stimulates sarcoplasmic reticulum Calcium pump ATPase ), a decrease in the 20kd myosin light chain phosphorylation by altering calcium sensitization and increasing myosin light chain phosphatase activity, a stimulation of calcium sensitive potassium channels which hyperpolarize the cell, and the phosphorylation of amino acid residue serine 16 on the small heat shock protein ( hsp20 ) by Protein Kinases A and G. The phosphorylation of hsp20 appears to alter actin and focal adhesion dynamics and actin-myosin interaction, and recent evidence indicates that hsp20 binding to 14-3-3 protein is involved in this process.

Calcium carbide reacts with water to produce acetylene, which acts as an artificial ripening agent.

The Calcium Kid is a British mockumentary comedy film which was released in 2004.

Calcium metabolism or calcium homeostasis is the mechanism by which the body maintains adequate calcium levels.

Calcium ions bind with troponin-C molecules ( which are dispersed throughout the tropomyosin protein ) and alter the structure of the tropomyosin, forcing it to reveal the cross bridge binding site on the actin.

Calcium ion entry into the presynaptic terminal causes the presynaptic release of glutamate which diffuses across the synaptic cleft binding to glutamate receptors on the postsynaptic membrane.

Calcium, which plays many roles in the cell and is tightly regulated, disrupts the membrane when it appears in excess.

Calcium ( calcium chloride or calcium gluconate ) increases threshold potential through a mechanism that is still unclear, thus restoring normal gradient between threshold potential and resting membrane potential, which is elevated abnormally in hyperkalemia.

Calcium can be injected into selected arteries to stimulate insulin release from various parts of the pancreas, which can be measured by sampling blood from their respective veins.

He described his findings in a paper entitled The Stationary H-and K-lines of Calcium in Stellar Atmosphere which he submitted to the Nature magazine in 1921.

## Calcium activates nitric oxide synthase which produces nitric oxide

Calcium cations from hard water can also combine with soap, which would dissolve in soft water.

There is also a fossa ovalis in the interatrial septum, which is used in the fetal period as a means of bypassing the lung. The atrium is depolarized by Calcium.

Her film credits include The Calcium Kid with Orlando Bloom and Tooth ( in which she played an ancient fairy ), both in 2004.