| ¿µ¹® | molecular weight | ÇÑ±Û | ºÐÀÚ·® |
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| ¼³¸í | ºÐÀÚ Áú·®À» ³ªÅ¸³»´Â ¾ç. ºÐÀÚ¸¦ ±¸¼ºÇÏ´Â ¿øÀÚÀÇ ¿øÀÚ·® ÃÑÇÕÀ¸·Î ³ªÅ¸³½´Ù. ¿¹Àü¿¡´Â ¿øÀÚ·®ÀÇ Ç¥ÁØÀ¸·Î »ê¼Ò¿øÀÚ¸¦ 16À¸·Î ÇÏ´Â ¹æ½ÄÀÌ »ç¿ëµÇ¾úÀ¸³ª, 1964³â ÀÌÈĺÎÅÍ´Â 12C ¿øÀÚ Áú·®À» 12·Î ÇÏ´Â ´ÜÀ§·Î ³ªÅ¸³½ ºÐÀÚ Áú·®À» »ç¿ëÇÑ´Ù. |
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| SDT | sensory detection theory; right sacrotransverse [fetal position] [Lat. sacrodextra transversa]; sign... |
|---|---|
| HOMO | highest occupied molecular orbital; homosexual |
| LEMO | lowest empty molecular orbital |
| LMO | localized molecular orbital |
| LUMO | lowest unoccupied molecular orbital |
| HOMO | Highest Occupied Molecular Orbital |
|---|---|
| LUMO | Lowest Unoccupied Molecular Orbital |
| MO | Molecular Orbital |
| VLO | ventrolateral orbital cortex |
| DFT | Density Functional Theory |
| molecular dissociation theory | A theory, pertaining to colour vision, that gray is the earliest of colour sensations, from which are derived, by molecular change, two paired substances that, respectively, detect yellow and blue, and that the yellow gives rise to paired substances for detection of red and green. Synonym: Ladd-Franklin theory. (05 Mar 2000) |
|---|---|
| kinetic molecular theory | <chemistry> This theory assumes that molecules must collide in order to react. The more collisions the more likely it is for a reaction to occur. However, depending on the conditions, only a small fraction of the collisions are effective in producing a reaction. There are several constraints. In order for a reaction to occur, bonds initially are broken, which requires energy. This energy depends on the type of the reaction and comes from the kinetic energies that the molecules possess before the collision. It is called the activation energy. Increasing the temperature increases the kinetic energies and more collisions will occur. In adition, at a higher temperature a greater number of the reacting molecules might possess an energy equal to or greater than the activation energy. However the molecules must also collide in a specific orientation, called the steric factor in order for a reaction to occur. A reaction will only be successful, if the collision has enough energy to be either equal to or greater than the activation energy and if the orientation of the collision allows for correct bond formation. These factors are in the Arrhenius equation: k = zp The rate constant k is proportional to the Arrhenius factor A. A is the product of the collision frequency z, and the steric factor p. The fraction of collisions with sufficient energy to produce a reaction are in the term of the equation. (09 Jan 1998) |
| relative molecular mass | The sum of the atomic weight's of all the atoms constituting a molecule; the mass of a molecule relative to the mass of a standard atom, now 12C (taken as 12.000). Relative molecular mass (Mr) is the mass relative to the dalton and has no units. See: atomic weight. Synonym: molecular mass, molecular weight ratio, relative molecular mass. (05 Mar 2000) |
| gram-molecular weight | Molecular weight expressed in grams. Compare: mole. (05 Mar 2000) |
| cloning, molecular | The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. (12 Dec 1998) |
| models, molecular | Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures. (12 Dec 1998) |
| molecular | <chemistry> Of, pertaining to or composed of molecules: a very small mass of matter. (18 Nov 1997) |
| molecular behaviour | <psychology> Behaviour described in small response units rather than larger ones; a specific response. Compare: molar behaviour. (05 Mar 2000) |
| molecular biology | <study> The study of the biochemistry of cells, it is closely linked to cell biology, in particular the biochemistry of DNA and cogeners. (16 Dec 1997) |
| molecular biophysics | Biophysics concerned with membrane processes, conformational and configurational properties of macromolecules, bioelectrical phenomena, etc. (05 Mar 2000) |
| molecular chaperones | A family of cellular proteins that mediate the correct assembly or disassembly of other polypeptides, and in some cases their assembly into oligomeric structures, but which are not components of those final structures. It is believed that chaperone proteins assist polypeptides to self-assemble by inhibiting alternative assembly pathways that produce nonfunctional structures. Some classes of molecular chaperones are the nucleoplasmins, the chaperonins, the heat-shock proteins 70, and the heat-shock proteins 90. (12 Dec 1998) |
| molecular clock | This term has two separate uses. 1. <molecular biology> The rate of fixation of mutations in DNA and thus times the rate of genetic diversification. 2. <cell biology> A biological system capable of maintaining up a timing rhythm or pulse. All such clocks are thought to be entrained by a natural oscillator such as the diurnal rhythm. (18 Nov 1997) |
| molecular cloning | <molecular biology> The biological amplification of a specific DNA sequence through mitotic division of a host cell into which it has been transformed or transfected. (09 Oct 1997) |
| molecular conformation | The characteristic three-dimensional shape of a molecule. (12 Dec 1998) |
| molecular disease | A disease in which the manifestations are due to alterations in molecular structure and function. (05 Mar 2000) |
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