* Calcium stearate ( Ca ( C < sub > 18 </ sub > H < sub > 35 </ sub > O < sub > 2 </ sub >)< sub > 2 </ sub >) is used in the manufacture of wax crayons, cements, certain kinds of plastics and cosmetics, as a food additive, in the production of water resistant materials and in the production of paints.

Calcium aluminate cements are hydraulic cements made primarily from limestone and bauxite.

* Calcium aluminoferrite, Ca < sub > 2 </ sub >( Al, Fe )< sub > 2 </ sub > O < sub > 5 </ sub >, a mineral found in cements

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

Calcium ion ( Ca < sup >++</ sup >) antagonists ( Calcium channel blockers ) are used in the treatment of chronic stable angina.

Calcium, with a density of 1. 55 g / cm < sup > 3 </ sup >, is the lightest of the alkaline earth metals ; magnesium ( specific gravity 1. 74 ) and beryllium ( 1. 84 ) are more dense, although lighter in atomic mass.

Calcium salts are colorless from any contribution of the calcium, and ionic solutions of calcium ( Ca < sup > 2 +</ sup >) are colorless as well.

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

Calcium and sulfur are also produced by weathering, but acid deposition is an important source of sulfur in many ecosystems.

Calcium, Vitamin D, and phosphorus are inter-related ; the consumption of each may affect the absorption of the others.

* Calcium levels in livestock feed are supplemented with it, such as for poultry ( when ground up ).

Calcium flares are used underwater to illuminate submerged objects.

Calcium channel blockers and losartan are associated with a lower risk of gout as compared to other medications for hypertension.

* Calcium channel blocker – Calcium ions are used in many cells, including beta cells, as a signaling mechanism.

Calcium channel blockers ( such as nifedipine ( Adalat ) and amlodipine ), isosorbide mononitrate and nicorandil are vasodilators commonly used in chronic stable angina.

* 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 sulfide with strontium sulfide with bismuth as activator, ( Ca, Sr ) S: Bi, yields blue light with glow times up to 12 hours, red and orange are modifications of the zinc sulfide formula.

Calcium is known to be a treatment for gastric problems, and gastric problems such as acid reflux are known to increase bruxism.

Calcium cations and chloride anions are involved in a few types of action potentials, such as the cardiac action potential and the action potential in the single-cell alga Acetabularia, respectively.

Calcium ions are required for each cycle of the sarcomere.

Calcium is removed from the muscle cell cytoplasm independent of repolarization ( depolarization signaling and muscle contraction are independent processes ).

Many elements are essential to humans ' survival, such as Calcium being what forms bones.

Calcium hydroxide ( slaked lime ) is used in many chemical refinery processes and is made by heating limestone at high temperature ( above 825 ° C ) and then carefully adding water to it.

Calcium carbide is made in this way as it requires a large amount of energy to promote an endothermic reaction ( at temperatures of 2500 ° C ).

Calcium, magnesium and potassium are usually made available to plants via cation exchange surfaces of organic material and clay soil surface particles.

Calcium ( from Latin, genitive calcis, meaning " lime ") was known as early as the first century when the Ancient Romans prepared lime as calcium oxide.

Calcium is available from hard leafy greens, nuts and seeds.

Calcium is used in many processes including muscle contraction, neurotransmitter release from nerve endings and cell migration.

Calcium released by basalts binds up CO < sub > 2 </ sub > from the atmosphere forming CaCO < sub > 3 </ sub > acting thus as a CO < sub > 2 </ sub > trap.

When the cement paste exposed to the air and meteoric water reacts with the atmospheric CO < sub > 2 </ sub >, portlandite and the Calcium Silicate Hydrate ( CSH ) of the hardened cement paste become progressively carbonated and the high pH gradually decreases from 13. 5 – 12. 5 to 8. 5, the pH of water in equilibrium with calcite ( calcium carbonate ) and the steel is no longer passivated.

Calcium carbonate, long used as the coating of paper, was now being used as an important filler as the paper industry converted from acid-based paper making systems to alkaline systems.

Calcium carbonate is used as the source of CO < sub > 2 </ sub > and the resultant calcium oxide is used to recover the ammonia from the ammonium chloride.

Calcium is released from the sarcoplasmic reticulum into the sarcomere when a muscle is stimulated to contract.

Calcium mediates the binding of the complexes via the terminal gamma-carboxy residues on FXa and FIXa to the phospholipid surfaces expressed by platelets, as well as procoagulant microparticles or microvesicles shed from them.

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

In 1959, the Indian River Central High School ( New York ) opened, serving students from the towns of Philadelphia, Theresa, Antwerp, Leray, Pamelia, the villages of Philadelphia, Theresa, Antwerp, Evans Mills, the hamlet of Calcium and the federal military installation of Fort Drum.

Calcium triggers release of the luciferin ( coelenterazine ) from the luciferin binding protein.

Calcium ions, Ca < sup > 2 +</ sup >, are released from bone into the bloodstream under controlled conditions.

Calcium also causes the release of Acetylcholine from Pre-synaptic terminal in the transmission of nerve impulse.

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

Calcium release from bone is regulated by parathyroid hormone.

Calcium influx from NMDA receptors is necessary for the activation of CaMKII.

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.

In 2004, Meade acquired Coronado Filters from founder and designer David Lunt, who produce an extensive range of specialty telescopes that allow views of the sun in Hydrogen-Alpha, and formerly, at Calcium K line wavelengths.