* Acid-base balance — bone buffers the blood against excessive pH changes by absorbing or releasing alkaline salts.

There are 3 important reversible reactions that control the above pH balance.

* Washing once a day or so with water but without soap, since soap disturbs the natural pH balance of the vagina.

The hardness of water also affects its pH balance which plays a critical role in food processing.

The acid introduced by using the sour mash controls the growth of bacteria that could taint the whiskey and creates a proper pH balance for the yeast to work.

As pH 7 is essentially, a " zero point " calibration ( akin to zeroing or taring a scale or balance ), calibrating at pH 7 first, calibrating at the pH closest to the point of interest ( e. g. either 4 or 10 ) second and checking the third point will provide a more linear accuracy to what is essentially a non-linear problem.

Sodium bicarbonate can be added as a simple solution for raising the pH balance of water ( increasing total alkalinity ) where high levels of chlorine ( 2 – 5 ppm ) are present as in swimming pools.

Contrast based on pH depends on changes in the acid / alkaline balance of brain cells when they go active.

Further, either a change in pH balance or introduction of foreign bacteria in the vagina can lead to infection known as vaginitis.

The pH balance in adolescent girls ' bodies is not conducive to the growth of Candida albicans, so they are unlikely to contract a yeast infection.

After Brendan attempts to brag about the pH balance of the soil, Tracey sharply comments that gardening is more about respect for nature than scientific theory.

The diet involves promoting alkali and acid balance through consuming various foods and beverages, thereby lowering the kidney's involvement with blood pH balancing.

The principal factors of soil quality are soil salination, pH, microorganism balance and the prevention of soil contamination.

In routine management, appropriateness of the cation-anion balance can be inferred by monitoring urine pH.

With the addition of some alkaline chemicals to restore the pH balance, the NEWater is ready for use.

These juices are not merely ornamental, however, as they establish an acidic pH balance for the solution ; this helps in both protecting the ginger beer from other cultures, as well as facilitating sugar inversion to increase the availability of the more readily metabolised fructose and glucose.

Although Astroglide's pH balance ( slightly acidic ) generally inhibits yeast growth, it is not recommended for use by those with yeast infections due to its glycerin content.

The pH of the thin juice produced is a balance between removing as much calcium from the solution and the expected pH drop across later processing.

Sodium citrate and citric acid help not only to balance the pH, also helps to improve the sense of smell.

The balance of these carbonate species ( which ultimately affects the solubility of carbon dioxide ), is dependent on factors such as pH, as shown in a Bjerrum plot.

Original Trident, a soft gum packaged in a unique rectangular shape, is sweetened with xylitol ( originally advertised as " Dentec " by the company ), a sugar alcohol that reduces plaque and protects teeth against decay associated with dental caries by helping to maintain a neutral pH balance in the mouth.

Unless you want to make your wife a pool widow and to spend a great many of your leisure hours nursing your pool's pristine purity, its care and feeding -- from pH content to filtering and vacuuming -- is best left to a weekly or bi-monthly professional service.

Since pH is defined as the negative logarithm of the concentration of hydronium ions, acids thus have pHs of less than 7.

It is important to note that antibiotic therapy alone without surgical drainage of the abscess is seldom effective due to antibiotics often being unable to get into the abscess and their ineffectiveness at low pH levels.

At pH values greater than the pKa of the carboxylic acid group ( mean for the 20 common amino acids is about 2. 2, see the table of amino acid structures above ), the negative carboxylate ion predominates.

At pH values lower than the pKa of the α-ammonium group ( mean for the 20 common α-amino acids is about 9. 4 ), the nitrogen is predominantly protonated as a positively charged α-ammonium group.

The fully neutral form ( structure ( 1 ) on the right ) is a very minor species in aqueous solution throughout the pH range ( less than 1 part in 10 < sup > 7 </ sup >).

This pH is known as the isoelectric point pI, so pI

* Soluble AC ( sAC ) is not a transmembrane form and is not regulated by G proteins or forskolin, instead acts as a bicarbonate / pH sensor.

For example, the bioavailability of ketoconazole ( antifungal ) is reduced at high intragastric pH ( low acid content )

Soil with a pH value higher than 7. 3 is normally referred to as alkaline.

Usually, the application of KOH is needed to increase the pH to this range.

Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions ( low pH ).

Distilled water, once carbon dioxide is removed, has a neutral pH of 7.

An example of this effect is the low pH of rain which falls in Scandinavia.

This chart shows that not all fish, shellfish, or the insects that they eat can tolerate the same amount of acid ; for example, frogs can tolerate water that is more acidic ( i. e., has a lower pH ) than trout.

In cultivated areas, limestone may also be added to increase the ability of the soil to keep the pH stable, but this tactic is largely unusable in the case of wilderness lands.

Because the initial reaction is reversible, it is determined by pH.

To control bacterial growth, the vagina is normally slightly acidic with a pH of 3. 8 – 4. 2.

A pH greater than 4. 5 is considered alkaline and is suggestive of bacterial vaginosis.

Esophageal injury by apple cider vinegar tablets has been reported, and, because vinegar products sold for medicinal purposes are neither regulated nor standardized, they vary widely in content, pH, and other respects.

The reason for the time limit of voluntary apnea is that the rate of breathing and the volume of each breath are tightly regulated to maintain constant values of CO < sub > 2 </ sub > tension and pH of the blood.

The pH of extracellular fluid is tightly regulated by buffers around 7. 4.

Ventilation is influenced and regulated by chemoreceptors for PaCO < sub > 2 </ sub >, PaO < sub > 2 </ sub >, and pH located in the brainstem, and in the aortic and carotid bodies as well as by neural impulses from lung stretch receptors and impulses from the cerebral cortex.

* The acidity in terms of pH values is also regulated, with some Vin de Pays areas having stricter rules than others.