AIDS / HIV |
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Aids stands for acquired immune deficiency syndrome. People with HIV (human immunodeficiency virus) can look and feel well. The symptoms of AIDS seem to have changed over the years. That's because illnesses and conditions have been gradually added to the group of maladies that are now called AIDS. In the beginning, only 12 conditions were called "AIDS." Now there are 28 illnesses and conditions in this group.
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AMBULANCE |
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An ambulance is a vehicle designated for the transport of sick or injured people. The first ambulances called by that name were horse ambulances used in the American Civil War. The first practical ambulances were created by Dominique Jean Larrey, a French surgeon (17661842), for use in the Napoleonic Wars. Modern-day ambulances are typically large automobiles on a van or light truck chassis.
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AUDIO TAPE |
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Audio Magnetic tape is a non-volatile storage medium consisting of a magnetic coating on a thin plastic strip. Nearly all recording tape is of this type, whether used for video, audio storage or general purpose digital data storage using a computer.
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BATTERIES |
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In science and technology, a battery is a device that stores chemical energy and makes it available in an electrical form. Batteries consist of electrochemical devices such as one or more galvanic cells, fuel cells or flow cells. The earliest known artifacts that may have been batteries are the Baghdad Batteries, from some time between 250 BCE and 640 CE. The modern development of batteries started with the Voltaic pile developed by the Italian physicist Alessandro Volta in 1800. The worldwide battery industry generates 48 billion dollars in sales annually (2005 estimate).
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WOUND HEALING |
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Wound healing, or wound repair, is the bodys natural process of regenerating dermal and epidermal tissue. When an individual is wounded, a set of events takes place in a predictable fashion to repair the damage. These events overlap in time (Midwood et al., 2004) and must be artificially categorized into separate steps: the inflammatory, proliferative, and maturation phases (Some authors consider healing to take place in four stages, by splitting different parts inflammation or proliferation into separate steps (Quinn, 1998; Dealey, 1999; Iba, 2004).
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