The principal goal of a conservator is to nullify or at least reduce the rate of deterioration of an object, this can be achieved through either non-interventive or interventive methodologies.

Salt-accelerated corrosion has caused ceiling light fixtures to fail ( see below ), but can also cause rapid deterioration of embedded rebar and other structural steel reinforcements holding the tunnel walls and ceiling in place.

Food preservation can also include processes which inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut, which can occur during food preparation.

Valuation risk refers to the concern that the net asset value of investments may be inaccurate ; capacity risk can arise from placing too much money into one particular strategy, which may lead to fund performance deterioration ; and concentration risk may arise if a fund has too much exposure to a particular investment, sector, trading strategy, or group of correlated funds.

Over years, magnetic tape can suffer from deterioration called sticky-shed syndrome.

A cell phone company has used this to create ring signals supposedly only able to be heard by younger humans ; but many older people can hear it, which may be due to the considerable variation of age-related deterioration in the upper hearing threshold.

In addition, workers can record equipment deterioration so they know to replace or repair worn parts before they cause system failure.

Gold or other metals are sometimes used in a price system as a store of perceived value, that does not break down due to environmental deterioration, and can be easily stored ( demurrage ).

Rarely built in modern times because of relatively short lifespan and limited height to which they can be built, timber dams must be kept constantly wet in order to maintain their water retention properties and limit deterioration by rot, similar to a barrel.

The research noted that the high amount of the antioxidant polyphenols in sparkling wine can help prevent deterioration of brain cells due to oxidative stress.

In his introduction to Carl C. Brigham's A Study of American Intelligence ( which helped popularize eugenics in the U. S .), Yerkes warned that " no citizen can afford to ignore the menace of race deterioration.

This has been attributed to a lack of knowledge and skill amongst ward based staff, in particular a failure to carry out measurement of the respiratory rate, which is often the major predictor of a deterioration and can often change up to 48 hours prior to a cardiac arrest.

Addiction to some CNS stimulants can quickly lead to medical, psychiatric and psychosocial deterioration.

However, there are some tissues ( e. g. bone ) that can heal without any structural or functional deterioration.

If untreated, a cholesteatoma can eat into the three small bones located in the middle ear ( the malleus, incus and stapes, collectively called ossicles ), which can result in nerve deterioration, deafness, imbalance and vertigo.

Some enemas are administered using so-called disposable bags connected to disposable tubing ( despite the names, such units can commonly be used for many months or years without significant deterioration ).

Aging of whole organisms is therefore a complex process that can be defined as " a progressive deterioration of physiological function, an intrinsic age-related process of loss of viability and increase in vulnerability ".

The New York Times editorialized that " Webster's has, it is apparent, surrendered to the permissive school that has been busily extending its beachhead in English instruction in the schools ... reinforced the notion that good English is whatever is popular " and " can only accelerate the deterioration " of the English language.

Forcing can lead consequently to vocal deterioration.

Indeed, it is very frequently the case that one can even predict and explain the kind of mental or psychological deterioration or change that human beings will undergo when specific parts of their brains are damaged.

Further heating can physically distort the voice coil, causing scuffing, shorting due to wire insulation deterioration, or other electrical or mechanical damage.

This debris can block hair follicles and cause their deterioration and consequent miniaturization of hair.

When relative humidity approaches 100 percent, condensation can occur on surfaces, leading to problems with mold, corrosion, decay, and other moisture-related deterioration.

Tension pneumothorax may also occur in those receiving mechanical ventilation, in which case it may be difficult to spot as the person is typically receiving sedation ; it is often noted because of a sudden deterioration in condition.

Water must be present for silicification to occur because it reduces the amount of oxygen present and therefore reduces the deterioration of the organism by fungi, maintains organism shape, and allows for the transportation and deposition of silica.

However, deterioration of renal function tends to occur more slowly.

Deterioration between the two extremes may occur very rapidly, often at the same time as rapid deterioration occurs in the kidney.

Nitrazepam is a particularly unsuitable hypnotic for the elderly as it induces a disability characterised by general mental deterioration, inability to walk, incontinence, dysarthric, confusion, prone to stumbling, falls, and disoriention which can occur from doses as low as 5 mg.

This requires that death occur from injury or disease rather than deterioration, i. e., the absence of cellular senescence.

Progressive deterioration may occur despite acclimation.

Other signs and symptoms that may occur in untreated patients include muscle deterioration, blindness, inability to swallow, diabetes, and thyroid and nervous system problems.

In 2006, the primary economic concerns focused on: high national debt ($ 9 trillion ), high non-bank corporate debt ($ 9 trillion ), high mortgage debt ($ 9 trillion ), high financial institution debt ($ 12 trillion ), high unfunded Medicare liability ($ 30 trillion ), high unfunded Social Security liability ($ 12 trillion ), high external debt ( amount owed to foreign lenders ) and a serious deterioration in the United States net international investment position ( NIIP ) (- 24 % of GDP ), high trade deficits, and a rise in illegal immigration.

Estonia's international realignment toward the West has been accompanied by a general deterioration in relations with Russia, most recently demonstrated by the controversy surrounding relocation of the Bronze Soldier WWII memorial in Tallinn.

Public international law has increased in use and importance vastly over the twentieth century, due to the increase in global trade, environmental deterioration on a worldwide scale, awareness of human rights violations, rapid and vast increases in international transportation and a boom in global communications.

Successful diversification and integration into the international community helped current GDP per capita to cut further deterioration to just 3. 2 % in the 1990s.

The older, traditional industries of Wallonia, particularly steel industry, began to lose their competitive edge during this period, but the general growth of world prosperity masked this deterioration until the 1973 and 1979 oil price shocks and resultant shifts in international demand sent the economy into a period of prolonged recession.

His rule remained unchallenged until the deterioration of East-West relations in the 1980s, when a stagnating economic situation, a worsening international image and growing careerism and corruption in the BCP weakened his positions.

This may be a better definition than the current one, which defines the kilogram as the mass of a physical artifact, the international prototype kilogram, which is vulnerable to deterioration or damage.

Further deterioration of the Thaw and decay of Khrushchev's international political standing happened during the Cuban Missile Crisis in 1962.

It quite often happens that campaigns go askew, resulting in a most unflattering deterioration of strong hands into played-out hands, just as a member of a former campaign's `` public '' may emerge flatteringly `` right '' the next time.

Although the clinical relevance of the fungal airway colonization is still a matter of debate, filamentous fungi may contribute to the local inflammatory response, and therefore to the progressive deterioration of the lung function, as often happens with allergic broncho-pulmonary aspergillosis ( ABPA ) – the most common fungal disease in the context of CF, involving a Th2-driven immune response to Aspergillus.

One way to think of TPM is " deterioration prevention ": deterioration is what happens naturally to anything that is not " taken care of ".