SEM
Scanning electron microscope.
Read Also:
- Sella turcica
A depression in the base of the skull where the pituitary gland is situated. It was called the sella turcica (the Turkish saddle) because of its resemblance to a saddle used by the Turks which had supports in the front and back.
- Short bowel syndrome
A condition due to loss of half or more of their small intestine removed because of surgical removal or disease of the small intestine. Common reasons for removing part of the small intestine include surgery for Crohn’s disease; necrotizing enterocolitis, an infectious inflammatory disease of premature newborns; intestinal atresia, failure of development of part of […]
- Short-term memory
A system for temporarily storing and managing information required to carry out complex cognitive tasks such as learning, reasoning, and comprehension. Short-term memory is involved in the selection, initiation, and termination of information-processing functions such as encoding, storing, and retrieving data. One test of short-term memory is memory span, the number of items, usually words […]
- Shortness of breath
Difficulty in breathing. Medically referred to as dyspnea. Shortness of breath can be caused by respiratory (breathing passages and lungs) or circulatory (heart and blood vessels) conditions and other conditions such as severe anemia or high fever. See also dyspnea.
- Shotgun sequencing
An approach used to decode a genome by shredding (“shotgunning”) it into smaller fragments of DNA which can then be individually sequenced. The sequences of these fragments are then ordered, based on overlaps in the genetic code, and finally reassembled into the complete sequence. The “whole genome shotgun” method is applied to the entire genome […]