(a.) Turning or rotating the plane of polarization towards the left; levogyrate, as levulose, left-handed quartz crystals, etc.
Example Sentences:
(1) In addition, the inhibitory activity of these acyclic analogues was enantioselective, exhibiting a preference, similar to the parent vesamicol, for the levorotatory isomer [(-)-11a vs (+)-11a].
(2) The levorotatory form of 5-hydroxytryptophan significantly improved the ataxia score.
(3) The stereochemistry of this material was established by conversion to levorotatory methyl 4-phthalimido [4(-2)H] butyrate.
(4) Extraction and fractionation of Frullania tamarisci has given, as the only allergenic component isolated, a levorotatory crystalline sutbstance, the structure of which is demonstrated.
(5) As several reports in literature confirmed the greatest antineoplastic activity of L-form in animals, the suggestion of further clinical investigation of levorotatory form as a separate preparation has been put forward.
(6) The dextrorotatory enantiomer of fluoxetine was slightly more potent than the levorotatory enantiomer in antagonizing the depletion of brain serotonin by p-chloroamphetamine in rats.
(7) The levorotatory compounds of R configuration showed stronger protective and also therapeutic effect in different experimental arrhythmias.
(8) These data indicate that the beta 2-receptor agonistic and anti-permeability actions of terbutaline are found solely in the levorotatory enantiomer.
(9) In five cases in which the levorotatory form of 5-hydroxytryptophan therapy was maintained for 12 months, the effect continued progressively.
(10) Some features of cerebellar ataxia have been reported to regress partially with long-term administration of 5-hydroxytryptophan or levorotatory form of 5-hydroxytryptophan.
(11) The racemic N-alkyl derivatives are more active than the racemic or even the levorotatory N-benzyl compound.
(12) By the consecutive oxidation and hydrolysis reactions a levorotatory intermediate was formed, presumably (-)-2-oxo-4-hydroxy-4-carbohydroxy-5-ureido-imidazoline.
(13) It was shown that the stereodifferentiation of anti-tumor effect of enantiomers was not outstanding although quite consistently in favour of levorotatory forms.
(14) A similar, but less potent neuron-protective effect, was seen with the opioid levorotatory enantiomer of DX, levorphanol (ED50, 40 microM).
(15) Treponemycin is a crystalline light-yellow compound with an mp of 93 to 95 degrees C, levorotatory, and soluble in most organic solvents.
(16) In this report, we identify that a major cortical receptor alteration in these disorders is a reduction in nicotinic receptors measured using both tritiated acetylcholine and levorotatory tritiated nicotine binding.
(17) The therapeutic index of the racemic 13 and its levorotatory enantiomer was about 1.7 times higher than that for ifosfamide and about 2.7 times higher than that for cyclophosphamide.
(18) In a separate experiment, 100 micrograms of dextrorotatory and levorotatory gossypol was administered to male mice.
(19) Among these compounds, the levorotatory 3-acetyl-N-(cyclopropylmethyl)morphinan (12) was found to be an orally active analgesic, comparable in potency to morphine (1), yet only weakly able to substitute for morphine (1) in morphine-dependent rats.
(20) The dextrorotatory gossypol, both in rat and mice, had less pronounced effect on the histoarchitecture of the testis in comparison to racemic and levorotatory gossypol.
Rotate
Definition:
(a.) Having the parts spreading out like a wheel; wheel-shaped; as, a rotate spicule or scale; a rotate corolla, i.e., a monopetalous corolla with a flattish border, and no tube or a very short one.
(v. i.) To turn, as a wheel, round an axis; to revolve.
(v. i.) To perform any act, function, or operation in turn, to hold office in turn; as, to rotate in office.
(v. i.) To cause to turn round or revolve, as a wheel around an axle.
(v. i.) To cause to succeed in turn; esp., to cause to succeed some one, or to be succeeded by some one, in office.
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.