(n.) The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution.
(n.) One of the whorls of a spiral univalve shell.
Example Sentences:
(1) Gyrate atrophy is a hereditary chorioretinal degenerative disease caused by a deficiency of the mitochondrial enzyme, ornithine aminotransferase (OAT).
(2) Modifications in quaternary structure induced by variation of these physicochemical parameters were followed by means of X-ray and quasi-elastic light-scattering and quantified in terms of weight average molecular weight (M), radius of gyration (Rg) and hydrodynamic radius (Rh).
(3) A case of localized chorioretinal atrophy resembling gyrate atrophy of the choroid and retina is presented.
(4) The shape parameters of the two rRNAs, volume Vc, surface Oc, radius of gyration Rs, maximum dimension of the molecule L, thickness D, and cross section radius of gyration Rsq, agree within the experimental error limits.
(5) A Monte Carlo study of the distribution functions for the end-to-end distance and radius of gyration for hard-sphere models of poly(glycine) and poly(L-alanine) random coils has been conducted in the chain-length range n = 3 to 100 monomer units for both unperturbed chains and chains perturbed by long-range interactions (excluded volume effects).
(6) The radius of gyration of the unactivated holoenzyme determined from neutron scattering is 94 A, and its maximum dimension is approximately 275-295 A.
(7) The radius of gyration of tetrameric phosphorylase b was determined and found to be in excellent agreement with that of phosphorylase a, but different from that of phosphorylase b reported elsewhere (G. Puchwein, O. Kratky, C. F. Golker and E. Helmreich, Biochemistry 9 (1970) 4691).
(8) The mood is fantastic: upbeat, from a crowd of older locals reliving their youth to cool young thangs attracted by Margate’s burgeoning reputation as Dalston-sur-Mer; fiftysomething men in braces and Harringtons, candy-floss-chomping teens… People are picnicking on the fake lawn beside the hair and beauty caravan, children gyrating newly bought hula-hoops to the strains of I’ve Got a Lovely Bunch of Coconuts.
(9) The results of the synchrotron small-angle X-ray scattering measurements showed that radii of gyration which reflect the size and shape of the enzyme were constant at around 38 A irrespective of the presence or absence of the K+ ion.
(10) A viscosity study of the PEGs showed them to be randomly coiled polymers, as their radii of gyration were related to the molecular weight by Rg = aM0.55.
(11) In the absence of calcium, the calmodulin molecule is shorter, the radius of gyration decreases to 20.6 A, and the maximum vector length decreases to approximately 58 A.
(12) The molecular weights of HA and LA pig mucosal heparins were found to be 14,900 and 11,500 and the respective radii of gyration were 40.1 and 33.6 A.
(13) Native human Glu-plasminogen (Glu1-Asn791) was previously shown to have a radius of gyration of 39 A and a shape best described by a prolate ellipsoid [Mangel, W. F., Lin, B., & Ramakrishnan, V. (1990) Science 248, 69-73].
(14) The radius of gyration and maximum particle dimension of the native enzyme are almost the same as those of the cobalt-enzyme but are shorter and longer, respectively, than those of the apo- and cadmium-enzymes.
(15) The hexokinase dimer found in the BI crystal form has a radius of gyration of 42 angstrom calculated from the atomic coordinates.
(16) The broadening of the 1H NMR signals is not due to oligomerization of the protein, since small-angle X-ray scattering experiments show that the average radius of gyration of the apo-g32P-(A + B) is 25.0 A and that of the reconstituted Zn(II)-g32P-(A + B) is 31.2 A.
(17) Mushroom expansion of the external granular layer occurred at patches producing a gyrating folial pattern rather than parallel ones.
(18) A reduction in the radius of gyration by 1-2 A on removal of calcium, previously observed in the native protein, was also found in the wild type and the Des4 mutant; however, no significant size change was observed in the Des2 mutant.
(19) According to this extrapolation, the cross-section radii of gyration of such a complex would amount to (R-c)b equals 0.805 plus or minus 0.015 nm and (R-c2)b equals 0.76 plus or minus 0.015 nm for the complex with actinomycin, and to (R-c)b equals 0.77 plus or minus 0.015 nm and (R-c2)b equals 0.75 plus or minus 0.01 nm for the actinomine complex.
(20) The ratius of gyration of the hydrocarbon region was 64 A, while that of the polar region was 100 A. consequently, the core of LDL is predominantly occupied by the hydrocarbon chains, while the outer shell is sparsely occupied by protein emerging from the lipid core.
Rotation
Definition:
(n.) The act of turning, as a wheel or a solid body on its axis, as distinguished from the progressive motion of a revolving round another body or a distant point; thus, the daily turning of the earth on its axis is a rotation; its annual motion round the sun is a revolution.
(n.) Any return or succesion in a series.
(a.) Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation; as, rotational velocity.
Example Sentences:
(1) To determine the accuracy of double-contrast arthrography in complete rotator cuff tears, we studied 805 patients thought to have a complete rotator cuff tear who had undergone double-contrast shoulder arthrography (DCSA) between 1978 and 1983.
(2) When the posterior capsule was sectioned, no significant changes were noted in the severity of the sag or the rotation.
(3) The Ta loop was a smooth, elongated ellipse in configuration and showed clockwise rotation in all planes, as did the P loop.
(4) With this system, a brain region loaded with fura-2 was illuminated by a rotating disc bearing three different interference filters of 340, 360 and 380 nm at a rate of 600 rpm.
(5) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
(6) This series of tests included tests for pathologic nystagmus, saccades, smooth pursuit, and optokinetic nystagmus, as well as bithermal caloric testing and rotational testing.
(7) The adherence of 51Cr-labeled platelets to rabbit aortae everted on probes rotated in platelet-red cell suspensions has been measured.
(8) We have used a modification of the rotating-frame imaging technique to measure PCr-to-ATP ratio non-invasively in human heart.
(9) Experimental evidence suggested that nucleosome rotational positioning is determined by the DNA sequence itself.
(10) The X-ray tube rotates outside the detector array at the rate of one revolution per second.
(11) The data collection scheme for the scanner uses multiple rotations of a linearly shifted, asymmetric fan beam permitting user-defined variable resolution.
(12) The purity and configuration of each isomer of the free acid and N-chloroacetylated derivative were ascertained by: (a) paper chromatography in five solvent systems, (b) elemental analysis, (c) Van Slyke nitrous acid determination of alpha-carbonyl carbon, and (d) Van Slyke ninhydrin determination of alpha-carbonyl carbon, and (e) optical rotation.
(13) Based on our experience with the mark I prosthesis we have designed and developed a mark II model which has freedom of axial rotation of the saddle.
(14) The reported study demonstrates that performance asymmetries between normal or reflected letters presented in the right and left visual field favors the right visual field when stimulus patterns are blocked and rotated 90 degrees clockwise and favors the left visual field when they are blocked and rotated 90 degrees counterclockwise.
(15) Moreover, the majority of the 'out of phase' units showed an increased discharge during side-up animal tilt and side-down neck rotation.
(16) 3-D curves were computed with an apparent rotation around the vertical axis Z.
(17) Subsequently, due to the rotation of the original polar axis in one hemisphere, the third cleavage plane through one half of the egg is transverse to the third cleavage plane through the other half.
(18) This suggests that S1 is a flexible protein with at least two domains that can rotate independently.
(19) Per-rotational nystagmus was recorded in rabbits with unilaterally narrowed vertebral arteries or following unilateral cervical sympathectomies.
(20) We found that the Gallie system generally allowed significantly more rotation in flexion, extension, axial rotation, and lateral bending than the other three fixation techniques.