| nuclear envelope | <cell biology> Membrane system that surrounds the nucleus of eukaryotic cells. Consists of inner and outer membranes separated by perinuclear space and perforated by nuclear pores. The term should be used in preference to the term nuclear membrane which is potentially very confusing. (18 Nov 1997) |
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| nuclear factor 1 | See: CTF. (18 Nov 1997) |
| nuclear family | A family composed of husband and wife with their children. (12 Dec 1998) |
| nuclear fission | Nuclear reaction in which the nucleus of a heavy atom such as uranium or plutonium is split into two approximately equal parts by a neutron, charged particle, or photon. (12 Dec 1998) |
| nuclear fusion | Thermonuclear reaction in which the nuclei of an element of low atomic weight unite under extremely high temperature and pressure to form a nucleus of a heavier atom. (12 Dec 1998) |
| nuclear heart scan | This noninvasive test uses radioactive tracers to delineate the hearts chambers and major vessels. It may be used to detect a heart attack, heart muscle function and coronary artery disease. The patient receives a radioactive tracer by injection (into a vein) and then the heart is imaged using a gamma camera. The heart is imaged before and after exercise. This test may be used to detect and evaluate atrial septal defect, dilated cardiomyopathy, congestive heart failure, cardiomyopathy, Lyme disease (secondary), mitral stenosis and superior vena cava syndrome. (27 Sep 1997) |
| nuclear hyaloplasm | The presumably fluid substance or gel of the nucleus in which stainable elements were believed to be suspended; much that was formerly considered to be karyolymph is now known to be euchromatin. Synonym: nuclear hyaloplasm, nuclear sap, nucleochylema, nucleochyme. Origin: karyo-+ L. Lympha, clear water (05 Mar 2000) |
| nuclear inclusion bodies | See: inclusion bodies. (05 Mar 2000) |
| nuclear jaundice | <paediatrics> Disorder due to jaundice in a newborn baby with high blood levels of the pigment bilirubin that is deposited in the brain resulting in damage. The level of bilirubin is monitored in newborns to determine whether treatment is needed to prevent kernicterus. With brain affected, it is also called bilirubin encephalopathy. (12 Dec 1998) |
| nuclear lamina | <cell biology> A fibrous protein network lining the inner surface of the nuclear envelope. The extent to which this system also provides a scaffold within the nucleus is controversial. Proteins of the lamina are lamins A, B and C, which have sequence homology to proteins of intermediate filaments. (18 Nov 1997) |
| nuclear layers of retina | The outer nuclear layer, layer 4, of the retina, neuroepithelial layer of retina, and the inner layer, layer 6, of the retina, ganglionic layer of retina. Synonym: granular layers of retina, stratum nucleare externum et internum retinae. (05 Mar 2000) |
| nuclear localization signal | Short, predominantly basic amino acid sequences identified as nuclear import signals for some proteins. These sequences are believed to interact with specific receptors at nuclear pores. (12 Dec 1998) |
| nuclear magnetic resonance | Spectroscopic method of measuring the magnetic moment of atomic nuclei in a covalent bond. Clinical application is in biochemical, metabolic, and physiologic studies of living tissue. It includes proton and electron spin-echo and spin-relaxation times. (12 Dec 1998) |
| nuclear magnetic resonance imaging | A special imaging technique used to image internal stuctures of the body, particularly the soft tissues. An MRI image is often superior to a normal X-ray image. It uses the influence of a large magnet to polarize hydrogen atoms in the tissues and then monitors the summation of the spinning energies within living cells. Images are very clear and are particularly good for soft tissue, brain and spinal cord, joints and abdomen. These scans may be used for detecting some cancers or for following their progress. Acronym: MRI (11 Nov 1997) |
| nuclear magnetic resonance tomography | A special imaging technique used to image internal stuctures of the body, particularly the soft tissues. An MRI image is often superior to a normal X-ray image. It uses the influence of a large magnet to polarize hydrogen atoms in the tissues and then monitors the summation of the spinning energies within living cells. Images are very clear and are particularly good for soft tissue, brain and spinal cord, joints and abdomen. These scans may be used for detecting some cancers or for following their progress. Acronym: MRI (11 Nov 1997) |
Synonyms : Fusion, Nuclear, Fusions, Nuclear, Nuclear Fusions
Synonyms : Lamina, Nuclear, Nuclear Laminas
Synonyms : NLS Peptide, Nuclear Localization Signal Peptide, NLS Peptides, Peptide, NLS, Peptides, NLS, Signal, Nuclear Localization, Signals, Nuclear Localization
Synonyms : Biomolecular NMR, Heteronuclear NMR, Multinuclear NMR, NMR Spectroscopies, Protein, Protein NMR Spectroscopies, Spectroscopies, Protein NMR, Spectroscopy, Protein NMR
Synonyms : Matrices, Nuclear, Matrix, Nuclear, Nuclear Matrices, Nuclear Scaffolds, Scaffold, Nuclear, Scaffolds, Nuclear
| nuclear fusion |
fusion: a nuclear reaction in which nuclei combine to form more massive nuclei with the simultaneous release of energy
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| nuclear fission |
fission: a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
출처: wordnet.princeton.edu/perl/webwn
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| nuclear physics |
the branch of physics that studies the internal structure of atomic nuclei
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| nuclear medicine |
the branch of medicine that uses radioactive materials either to image a patient's body or to destroy diseased cells
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| nucleolar organizer |
nucleolus organizer: the particular part of a chromosome that is associated with a nucleolus after nuclear division
출처: wordnet.princeton.edu/perl/webwn
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| NUC | (physics) a process that alters the energy or structure or composition of atomic nuclei |
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| NUC | (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements |
| NUC | government agency created in 1974 to license and regulate nuclear power plants |
| NUC | the resonance absorption of a gamma ray by a nucleus identical to the nucleus that emitted the gamma ray |
| NUC | ribonucleic acid found in the nucleolus of the cell |
| NUC | a rocket engine in which a nuclear reactor is used to heat a propellant |
| NUC | a submarine that is propelled by nuclear power |
| NUC | the warhead of a missile designed to deliver an atom bomb |
| NUC | a weapon of mass destruction whose explosive power derives from a nuclear reaction |
| NUC | ship whose motive power comes from the energy of a nuclear reactor |
| NUC | a submarine that is propelled by nuclear power |
| NUC | general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units |