What's the difference between librate and libration?

Librate


Definition:

  • (v. i.) To vibrate as a balance does before resting in equilibrium; hence, to be poised.
  • (v. t.) To poise; to balance.

Example Sentences:

  • (1) The simulation reproduces the amplitudes of the fast librational motions of the backbone N-H bonds determined from 15N nuclear magnetic relaxation data, as well as the crystallographic B-factors.
  • (2) This has provided information on the translational and librational motions of individual groups in the complex.
  • (3) Above about 52 degrees C cholesterol improves the order by decreasing the amplitude of the librational motions.
  • (4) In its thermal vibrations, the adenosine molecule behaves as two rigid segments with a torsional libration about the glycosidic bond of 14.4 deg2 at 123 K. The force constant for this libration, as determined from the diffraction data, is 73 (10) J mol-1 deg-2.
  • (5) In the 1970s, Princeton physicist Gerald K O’Neill envisioned 100,000-person colonies, stationed at what is known as the fifth Lagrangian libration point (L5) in the moon’s orbit – like a gravitational eddy where things stay put by themselves.
  • (6) The source of the entropic elastomeric force is demonstrated to be the result of internal chain dynamics, and the mechanism is called the librational entropy mechanism of elasticity.
  • (7) The librational motions are to some extent cooperative.
  • (8) A translational, librational, and screw analysis of the thermal parameters of endothiapepsin also supports a model in which the two parts can move relative to each other.
  • (9) Collectively these results suggest that hydrophobic interactions make contributions to elastin entropy at low extensions, but that librational mechanisms make larger contributions to the elastic restoring force at longer extensions.
  • (10) Many such motions reflect peptide plane librations that result from anticorrelated crankshaft rotations of psi i and phi i+1.
  • (11) 7 nsec at 40 degrees C) where the band has been assigned to a peptide librational mode.
  • (12) The amplitude of the base motion, modeled as a fast four-site libration, or diffusion in a cone, increased slightly with higher levels of hydration.
  • (13) The TLS model has also been applied to the whole protein molecule and shows that the average motion is approximately isotropic with little librational character.
  • (14) Calculations of the relative statistical weights of these conformations confirm earlier theoretical considerations on the importance of the librational free energy of stable conformations of peptides.
  • (15) Since the spin-lattice relaxation rate for the active R-state (immobilized) phosphate is similar to that observed in other phosphoenzymes of different size it is suggested that a librational motion on the nanosecond time scale may constitute a common spin-lattice relaxation pathway for phosphates in macromolecules.
  • (16) The absorption bands of the glycerol ester, phosphoryl, and choline groups were broadened upon hydration, suggesting the activation of the librational or torsional motion.
  • (17) The similarity of Raman frequencies for B-, A-, C-, and Z-DNA suggests that these modes originate from concerted motions of the bases (librations), which are not strongly dependent upon helix backbone geometry or handedness.
  • (18) Thus, while the rate of these transitions cannot be quantified, the simulated decay of these correlation functions is completely consistent with the physical picture in which the N-H vectors, in addition to fast librational motion, undergo large amplitude jumps between conformations stabilized by hydrogen bonds.
  • (19) By analogy this allows for the first assignment of a peptide librational mode in a naturally occurring polypeptide or protein.
  • (20) The hydrophobic side groups in the protein core show mainly translational motion, with mean-square librations of 20 deg2 which are similar to those found in some close-packed crystals of small organic molecules.

Libration


Definition:

  • (n.) The act or state of librating.
  • (n.) A real or apparent libratory motion, like that of a balance before coming to rest.

Example Sentences:

  • (1) The simulation reproduces the amplitudes of the fast librational motions of the backbone N-H bonds determined from 15N nuclear magnetic relaxation data, as well as the crystallographic B-factors.
  • (2) This has provided information on the translational and librational motions of individual groups in the complex.
  • (3) Above about 52 degrees C cholesterol improves the order by decreasing the amplitude of the librational motions.
  • (4) In its thermal vibrations, the adenosine molecule behaves as two rigid segments with a torsional libration about the glycosidic bond of 14.4 deg2 at 123 K. The force constant for this libration, as determined from the diffraction data, is 73 (10) J mol-1 deg-2.
  • (5) In the 1970s, Princeton physicist Gerald K O’Neill envisioned 100,000-person colonies, stationed at what is known as the fifth Lagrangian libration point (L5) in the moon’s orbit – like a gravitational eddy where things stay put by themselves.
  • (6) The source of the entropic elastomeric force is demonstrated to be the result of internal chain dynamics, and the mechanism is called the librational entropy mechanism of elasticity.
  • (7) The librational motions are to some extent cooperative.
  • (8) A translational, librational, and screw analysis of the thermal parameters of endothiapepsin also supports a model in which the two parts can move relative to each other.
  • (9) Collectively these results suggest that hydrophobic interactions make contributions to elastin entropy at low extensions, but that librational mechanisms make larger contributions to the elastic restoring force at longer extensions.
  • (10) Many such motions reflect peptide plane librations that result from anticorrelated crankshaft rotations of psi i and phi i+1.
  • (11) 7 nsec at 40 degrees C) where the band has been assigned to a peptide librational mode.
  • (12) The amplitude of the base motion, modeled as a fast four-site libration, or diffusion in a cone, increased slightly with higher levels of hydration.
  • (13) The TLS model has also been applied to the whole protein molecule and shows that the average motion is approximately isotropic with little librational character.
  • (14) Calculations of the relative statistical weights of these conformations confirm earlier theoretical considerations on the importance of the librational free energy of stable conformations of peptides.
  • (15) Since the spin-lattice relaxation rate for the active R-state (immobilized) phosphate is similar to that observed in other phosphoenzymes of different size it is suggested that a librational motion on the nanosecond time scale may constitute a common spin-lattice relaxation pathway for phosphates in macromolecules.
  • (16) The absorption bands of the glycerol ester, phosphoryl, and choline groups were broadened upon hydration, suggesting the activation of the librational or torsional motion.
  • (17) The similarity of Raman frequencies for B-, A-, C-, and Z-DNA suggests that these modes originate from concerted motions of the bases (librations), which are not strongly dependent upon helix backbone geometry or handedness.
  • (18) Thus, while the rate of these transitions cannot be quantified, the simulated decay of these correlation functions is completely consistent with the physical picture in which the N-H vectors, in addition to fast librational motion, undergo large amplitude jumps between conformations stabilized by hydrogen bonds.
  • (19) By analogy this allows for the first assignment of a peptide librational mode in a naturally occurring polypeptide or protein.
  • (20) The hydrophobic side groups in the protein core show mainly translational motion, with mean-square librations of 20 deg2 which are similar to those found in some close-packed crystals of small organic molecules.

Words possibly related to "librate"