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injury resulting from exposure to heat, electricity, radiation, or caustic chemicals. Three degrees of burn are commonly recognized. In first-degree burns the outer layer of skinskin,
the flexible tissue (integument) enclosing the body of vertebrate animals. In humans and other mammals, the skin operates a complex organ of numerous structures (sometimes called the integumentary system) serving vital protective and metabolic functions.
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, called epidermis, becomes red, sensitive to the touch, and often swollen. Medical attention is not required but application of an ointment may relieve the pain. Second-degree burns are characterized by the variable destruction of epidermis and the formation of blisters; nerve endings may be exposed. The more serious cases should be seen by a physician and care should be taken to avoid infection. Local therapy includes application of a chemical such as silver nitrate to produce a soft crust, reduce the threat of infection, and relieve the pain. Third-degree burns involve destruction of the entire thickness of skin and the underlying connective tissue. In the more severe cases underlying bones are also charred. The surface area involved is more significant than the depth of the burn. Shockshock,
any condition in which the circulatory system is unable to provide adequate circulation to the body tissues, also called circulatory failure or circulatory collapse. Shock results in the slowing of vital functions and in severe cases, if untreated, in death.
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 must be prevented or counteracted; blood transfusion may be required to replace lost body fluids. Invasion of various bacteria must be prevented or cured by administering antibiotics and other drugs. Morphine may be employed to ease pain. Long-term treatment may include transplantationtransplantation, medical,
surgical procedure by which a tissue or organ is removed and replaced by a corresponding part, usually from another part of the body or from another individual.
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 of natural or artificial skin grafts.



an injury to the skin, mucosa, and underlying tissue as a result of exposure to high temperatures (thermal burns), such chemicals as concentrated acids and caustic bases (chemical burns), electric current (electric burns), and ionizing radiation (radiation burns). The severity of the injury is determined by the depth and extent of the burn.

In 1960, Soviet medicine adopted the classification of burns that is based on the determination of the depth of pathological changes in the tissues. According to this classification, first-degree burns are accompanied by redness and edema; second-degree, by the formation of blisters; third-degree, by dry or colliquative necrosis of the skin with liquefaction of dead tissues; and fourth-degree, by charring of the skin and the underlying tissues—fatty tissue, fascia, muscle, and bone. The area of a burn can be determined by several methods, including the use of tables, formulas, and simple measurement with the palm of the hand. (The area covered by an outstretched hand is roughly equivalent to 1–1.2 percent of the surface area of the body.) A first-degree burn is usually considered life-threatening if it covers 50 percent of the body; second-degree, more than 30 percent; and third-degree, about 30 percent. With superficial first- and second-degree burns that cover more than 20 percent of the body, burn syndrome arises. This is characterized by four stages: shock; acute toxemia, in which the body is poisoned by microbial toxins and the products of tissue breakdown; septicemia, in which suppuration arises; and convalescence, or recovery.

First aid procedures for first- and second-degree burns involve eliminating the source of the burn, warming the body and taking other measures to prevent shock, applying dry, sterile dressings (in cases of extensive burns, wrapping with a clean sheet), and transporting the victim to a hospital or clinic.

In chemical burns, the rapid reaction between acids and tissue proteins results in coagulation necrosis and formation of a solid dry crust. First aid consists of copious washing with tapwater and subsequent application of a 2-percent sodium carbonate solution. Caustic bases cause colliquative necroses that dissolve the surface layers of the skin and form a soft, loose crust. After copious washing with water, pads soaked in mild solutions of weak acids, for example, a 2-percent solution of acetic or boric acid or 0.5-percent solution of citric acid, are applied to the affected area. In burns of the esophagus and stomach caused by the ingestion of bases or vinegar essence, the victim must drink large quantities of milk or water and receive antidotes. Chemical burns of the eyes require flushing with water. In all cases, the victims must be promptly brought to a hospital or clinic.

In the hospital, tetanus antitoxin and toxoid are administered, the skin around the burn is treated with alcohol, and a dry dressing is applied. Local burns are treated by the closed method, which involves the application of dressings impregnated with antibacterial ointments; in some cases, the exposure method is used. Deep burns require an operation called dermoplasty to close the skin lesion. The general treatment involves blood transfusion, infusion of blood substitutes, infusion of serum from patients who are recovering from burns, oxygen therapy, and the use of antibiotics, antihistamines, and vitamins. The victim should be kept on a high-calorie, protein-rich diet. Aseptic procedures must be observed. The linen should be frequently changed and the patient’s room should be well ventilated. Prevention of bedsores and other complications is essential.


Ar’ev, T. Ia. Ozhogi i otmorozheniia. Leningrad, 1971.



To consume fuel.
An injury to tissues caused by heat, chemicals, electricity, or irradiation effects.


1. an injury caused by exposure to heat, electrical, chemical, or radioactive agents. Burns are classified according to the depth of tissue affected: first-degree burn: skin surface painful and red; second-degree burn: blisters appear on the skin; third-degree burn: destruction of both epidermis and dermis
2. a hot painful sensation in a muscle, experienced during vigorous exercise
3. Austral and NZ a controlled fire to clear an area of scrub


To write a write-once optical medium such as a CD-R, DVD-R or BD-R disc. Such a disc is considered "burned," because once recorded, it cannot be erased and rewritten. The term is also erroneously used for rewritable disks, such as CD-RWs and DVD-RWs, but rewritable media are not "burned;" they are "written." Burn means "once and done." See CD-R, DVD-R and DVD+R. See also burn in.

A Burned Disc
You can see the "burned" part of this CD-R disc by noticing the slight change in reflectivity on the recording side. In this example, the arrow points to the end of the small recorded area, which is less than 6% of the 700MB capacity of the disc.
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A nice acoustic touch on Changing Tides & Burning Bridges is a diversion from his powerful electric sound.
I wanted the metaphor Burning Bridges (the title) because I think at my age you tend to go backwards all the time and think about things you should have done or choices you should have made," said Ms Thomas, who is 65.
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That pungent smell of burning bridges suggests that he too could be planning to leave the party for new political pastures.
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You should leave on a good note without burning bridges.
I have a spectacular way of not only burning bridges but blowing them into smithereens.
It's a shame that the Louisville-based Mackin family that owns OVACO seems intent on burning bridges with workers, customers, the Shelbyville community and other stakeholders," said Baird.