HEARING LOSS |
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A hearing impairment is a decrease in one's ability to hear (i.e. perceive auditory information). While some cases of hearing loss are reversible with medical treatment, many lead to a permanent disability (often called deafness).
If the hearing loss occurs at a young age, interference with the acquisition of spoken language and social development may occur. Hearing aids and cochlear implants may alleviate some of the problems caused by hearing impairment, but are often insufficient. People who have hearing impairments, especially those who develop a hearing problem later in life, often require support and technical adaptations as part of the rehabilitation process.
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LEAD |
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Lead is a chemical element in the periodic table that has the symbol Pb (L. plumbum) and atomic number 82. A soft, heavy, toxic and malleable poor metal, lead is bluish white when freshly cut but tarnishes to dull gray when exposed to air. Lead is used in building construction, lead-acid batteries, bullets and shot, and is part of solder, pewter, and fusible alloys. Lead has the highest atomic number of all stable elements. (But see the article on Bismuth, which has a half life so long it can be considered stable.)
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ORTHOPEDICS |
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Orthopedics - The branch of medicine that deals with the prevention or correction of injuries or disorders of the skeletal system and associated muscles, joints, and ligaments. Orthopedic surgery or orthopedics (Commonwealth: "orthopaedics") is the branch of surgery concerned with acute, chronic, traumatic, and recurrent injuries and other disorders of the musculoskeletal system, its muscular and bone parts. Apart from the mechanical considerations, it also is concerned with the pathology, genetics, intrinsic, extrinsic, and biomechanical factors involved.
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SURGERY - ORTHOPEDIC |
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Orthopedic surgery or orthopedics (Commonwealth: "orthopaedics") is the branch of surgery concerned with acute, chronic, traumatic, and recurrent injuries and other disorders of the musculoskeletal system, its muscular and bone parts. Apart from the mechanical considerations, it also is concerned with the pathology, genetics, intrinsic, extrinsic, and biomechanical factors involved.
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TECHNOLOGY |
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Technology is a word with origins in the Greek "technologia" ("τεχνολογία") "techne", "τέχνη" ("craft") and "logia", "λογία" ("saying")." "Technology" is a broad term dealing with the use and knowledge of humanity's tools and crafts.
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