When calcium is leached from the needles of red spruce, these trees become less cold tolerant and exhibit winter injury and even death.

When in solution, the calcium ion to the human taste varies remarkably, being reported as mildly salty, sour, " mineral like " or even " soothing.

When used in larger quantity, spices can also contribute a substantial amount of minerals, including iron, magnesium, calcium, and many others, to the diet.

When the solution comes into contact with air the chemical reaction that created it is reversed and particles of calcium carbonate are deposited.

When this solution drops down it leaves behind particles of calcium carbonate and over time these form into a stalactite.

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.

When healthy, the kidneys maintain the body's internal equilibrium of water and minerals ( sodium, potassium, chloride, calcium, phosphorus, magnesium, sulfate ).

When cryolite is used for the preparation of alum, it is mixed with calcium carbonate and heated.

When the oceans contain a relatively high proportion of magnesium compared to calcium, aragonite is more stable, but as the magnesium concentration drops, it becomes less stable, hence harder to incorporate into an exoskeleton, as it will tend to dissolve.

When the muscle no longer needs to contract, the calcium ions are pumped from the sarcomere and back into storage in the sarcoplasmic reticulum.

When excess calcium hydroxide is added to limewater, a suspension of calcium hydroxide particles remains, giving it a milky aspect, in which case it has the common name of milk of lime.

When mutant T369S channels coassemble with CNGB3, however, the only remaining aberration is increased calcium permeability.

When the trigger hairs are stimulated, an action potential ( mostly involving calcium ions — see calcium in biology ) is generated, which propagates across the lobes and stimulates cells in the lobes and in the midrib between them.

When an irritating object becomes trapped within an oyster's shell, it deposits layers of calcium carbonate ( CaCO < sub > 3 </ sub >), slowly increasing in size and producing a pearl.

When Acetobacter colonies form enough acetic acid from the ethanol, the calcium carbonate around the colonies dissolves, forming a very distinct clear zone.

When dissolved, these minerals yield calcium and magnesium cations ( Ca < sup > 2 +</ sup >, Mg < sup > 2 +</ sup >) and carbonate and bicarbonate anions ( CO < sub > 3 </ sub >< sup > 2 -</ sup >, HCO < sub > 3 </ sub >< sup >-</ sup >).

When this is the case, it is usually caused by the presence of calcium and magnesium sulfates and / or chlorides in the water, which become more soluble as the temperature increases.

When there is hypoalbuminemia ( a lower than normal albumin ), the corrected calcium level is higher than the total calcium.

When it is necessary to decrease cerebral blood flow, MAP can be lowered using common antihypertensive agents such as calcium channel blockers.

When the muscle cell is stimulated to contract by an action potential, calcium channels open in the sarcoplasmic membrane and release calcium into the sarcoplasm.

When calcium rises, the muscles contract, and when calcium falls, the muscles relax.

When fully implemented, CAIR will reduce SO < sub > 2 </ sub > emissions in 28 eastern states and the District of Columbia by over 70 percent and NOx emissions by over 60 percent from 2003 levels.

When a constitution establishes a federal state, it will identify the several levels of government coexisting with exclusive or shared areas of jurisdiction over lawmaking, application and enforcement.

When they struck atoms in the glass wall, they excited their orbital electrons to higher energy levels, causing them to fluoresce.

When disaggregated, only petroleum and non-petroleum groupings showed different results: a country with relatively low levels of dependence on petroleum exports is at slightly less risk, while a high-level of dependence on oil as an export results in slightly more risk of a civil war than national dependence on another primary commodity.

When neutrons are scattered from hydrogen-containing materials, they produce diffraction patterns with high noise levels.

When asked during a 2007 phone-in interview on XETRA-FM if he ever had any notions of performing in an Oingo Boingo reunion, Elfman immediately rejected the idea and stated that in the last few years with the band he had begun to develop significant and irreversible hearing damage as a result of his continuous exposure to the high noise levels involved in performing in a rock band.

When a particular substance, whether chemical or biotic — reaches unsafe levels in the bloodstream, the body can effectively dilute — or at least maintain equilibrium of — the offending substances by storing it in new fat tissue.

When present together in solid solution, energy is transferred from the higher-energy tungsten to the lower-energy molybdenum, such that fairly low levels of molybdenum are sufficient to cause a yellow emission for scheelite, instead of blue.

When severe hypoglycemia has persisted in a hospitalized patient, the amount of glucose required to maintain satisfactory blood glucose levels becomes an important clue to the underlying etiology.

When inspired air contains CO levels as low as 0. 02 %, headache and nausea occur ; if the CO concentration is increased to 0. 1 %, unconsciousness will follow.

When blood glucose levels fall below a certain level, the body begins to use stored sugar as an energy source through glycogenolysis, which breaks down the glycogen stored in the liver and muscles into glucose, which can then be utilized as an energy source.

When control of insulin levels fails, diabetes mellitus can result.

When traditional regimens are used aggressively enough to achieve near-normal glycosylated hemoglobin A1c levels, hypoglycemia is at least as frequent as with flexible regimens.

When renin levels are elevated, the concentrations of angiotensin II and aldosterone increase, leading to increased sodium chloride reabsorption, expansion of the extracellular fluid compartment, and an increase in blood pressure.

When it comes to contrast ratio, AMOLED display still performs best due to its underlying technology, where the black levels are displayed as pitch black and not as dark gray.

When water levels are stabilized, the area and diversity of the marsh is reduced.

When it is present at a much higher concentration, it also binds to OR3, inhibiting transcription from P < sub > RM </ sub >, thus regulating its own levels in a negative feedback loop.

When combined with secure containers, or document destruction systems, or electronic access or alarm systems, locks can provide much higher levels of security.

When nonselective COX-1 / COX-2 inhibitors ( such as aspirin, ibuprofen, and naproxen ) lower stomach prostaglandin levels, ulcers of the stomach or duodenum internal bleeding can result.

When estrogen levels were raised through the increased activity of the enzyme aromatase in male lab mice, OCD rituals were dramatically decreased.

When Phe cannot be metabolized by the body, abnormally high levels accumulate in the blood and are toxic to the brain.

When maternal blood Phe levels fall below 2 micromol / dL, anecdotal reports indicate that the mothers may suffer adverse effects, including headaches, nausea, hair loss, and general malaise.

When low phenylalanine levels are maintained for the duration of pregnancy, there are no elevated levels of risk of birth defects compared with a baby born to a non-PKU mother.

When long term pain is relieved by therapeutic intervention, scores on the neurotic triad and anxiety fall, often to normal levels.