- Industry: Library & information science
- Number of terms: 152252
- Number of blossaries: 0
- Company Profile:
The National Library of Medicine (NLM), on the campus of the National Institutes of Health in Bethesda, Maryland, is the world's largest medical library. The Library collects materials and provides information and research services in all areas of biomedicine and health care.
1) Within most types of eukaryotic cell nucleus, a distinct region, not delimited by a membrane, in which some species of rRNA (RNA, ribosomal) are synthesized and assembled into ribonucleoprotein subunits of ribosomes. In the nucleolus rRNA is transcribed from a nucleolar organizer, i.e., a group of tandemly repeated chromosomal genes which encode rRNA and which are transcribed by RNA polymerase I.
2) A spherical body of the nucleus of most eukaryotes that becomes enlarged during protein synthesis, is associated with a nucleolus organizer, and contains the DNA templates for ribosomal RNA -- called also plasmosome.
3) The nucleolus is a region found within the cell nucleus that is concerned with producing and assembling the cell's ribosomes. Following assembly, ribosomes are transported to the cell cytoplasm where they serve as the sites for protein synthesis.
Industry:Health care
1. A sudden or violent disturbance in the mental or emotional faculties. 2. A state of profound depression of the vital processes of the body that is characterized by pallor, rapid but weak pulse, rapid and shallow respiration, reduced total blood volume, and low blood pressure and that is caused usually by severe especially crushing injuries, hemorrhage, burns, or major surgery. 3. Sudden stimulation of the nerves or convulsive contraction of the muscles that is caused by the discharge through the animal body of electricity from a charged source.
Industry:Health care
1. Having caverns or cavities. 2. Of tissue: composed largely of vascular sinuses and capable of dilating with blood to bring about the erection of a body part.
Industry:Health care
1) Occurring in an abnormal position (an ectopic kidney).
2) Originating in an area of the heart other than the sinoatrial node (ectopic beats); also: initiating ectopic heartbeats (an ectopic pacemaker).
Industry:Health care
1): The natural cessation of menstruation occurring usually between the ages of 45 and 55 with a mean in Western cultures of approximately 51.
2) The physiological period in the life of a woman in which such cessation and the accompanying regression of ovarian function occurs--called also climacteric. b: Cessation of menstruation from other than natural causes (as from surgical removal of the ovaries).
Industry:Health care
1) A continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths are arranged in order;
2) Any of various continua that resemble a spectrum in consisting of an ordered arrangement by a particular characteristic (as frequency or energy): as (1): electromagnetic spectrum (2): mass spectrum; c: the representation (as a plot) of a spectrum.
3) A continuous sequence or range; specifically: a range of effectiveness against pathogenic organisms (an antibiotic with a broad spectrum).
Industry:Health care
1) A salt or ester of a phosphoric acid;
2) The trivalent anion PO43- derived from phosphoric acid (H3PO4) .
3) An organic compound of phosphoric acid in which the acid group is bound to nitrogen or a carboxyl group in a way that permits useful energy to be released (as in metabolism).
Industry:Health care
1) An act or the process of returning (as to a former condition);
2) A return toward an ancestral type or condition: reappearance of an ancestral character.
3) A product of reversion; specifically: an organism with an atavistic character.
Industry:Health care
1) Reflected heat, light, or color;
2) A mirrored image.
3) An automatic and often inborn response to a stimulus that involves a nerve impulse passing inward from a receptor to the spinal cord and thence outward to an effector (as a muscle or gland) without reaching the level of consciousness and often without passing to the brain (the knee-jerk reflex);
4) The process that culminates in a reflex and comprises reception, transmission, and reaction;
4) reflexes plural: the power of acting or responding with adequate speed.
Industry:Health care
A behavior disorder originating in childhood in which the essential features are signs of developmentally inappropriate inattention, impulsivity, and hyperactivity. Although most individuals have symptoms of both inattention and hyperactivity-impulsivity, one or the other pattern may be predominant. The disorder is more frequent in males than females. Onset is in childhood. Symptoms often attenuate during late adolescence although a minority experience the full complement of symptoms into mid-adulthood. (From DSM-IV)
Industry:Health care
