(v. t.) To draw out, and twist into threads, either by the hand or machinery; as, to spin wool, cotton, or flax; to spin goat's hair; to produce by drawing out and twisting a fibrous material.
(v. t.) To draw out tediously; to form by a slow process, or by degrees; to extend to a great length; -- with out; as, to spin out large volumes on a subject.
(v. t.) To protract; to spend by delays; as, to spin out the day in idleness.
(v. t.) To cause to turn round rapidly; to whirl; to twirl; as, to spin a top.
(v. t.) To form (a web, a cocoon, silk, or the like) from threads produced by the extrusion of a viscid, transparent liquid, which hardens on coming into contact with the air; -- said of the spider, the silkworm, etc.
(v. t.) To shape, as malleable sheet metal, into a hollow form, by bending or buckling it by pressing against it with a smooth hand tool or roller while the metal revolves, as in a lathe.
(v. i.) To practice spinning; to work at drawing and twisting threads; to make yarn or thread from fiber; as, the woman knows how to spin; a machine or jenny spins with great exactness.
(v. i.) To move round rapidly; to whirl; to revolve, as a top or a spindle, about its axis.
(v. i.) To stream or issue in a thread or a small current or jet; as, blood spinsfrom a vein.
(v. i.) To move swifty; as, to spin along the road in a carriage, on a bicycle, etc.
(n.) The act of spinning; as, the spin of a top; a spin a bicycle.
(n.) Velocity of rotation about some specified axis.
Example Sentences:
(1) Type 1 changes (decreased signal intensity on T1-weighted spin-echo images and increased signal intensity on T2-weighted images) were identified in 20 patients (4%) and type 2 (increased signal intensity on T1-weighted images and isointense or slightly increased signal intensity on T2-weighted images) in 77 patients (16%).
(2) Electron spin resonance studies indicate the formation of two vanadyl complexes that are 1:1 in vanadyl and deferoxamine, but have two or three bound hydroxamate groups.
(3) The relative rates of reduction of several spin-labeled molecules that partition differently across the hy-drophobic-interface of inner membranes from rat liver mitochondria were investigated.
(4) When reformist industrialist Robert Owen set about creating a new community among the workers in his New Lanark cotton-spinning mills at the turn of the nineteenth century, it was called socialism, not corporate social responsibility.
(5) An unusually high degree of motional freedom is found for both these spin-labels, even in gel phase bilayers.
(6) tert-Butyl hydroaminoxyl is detected as a degradation product of the hydroxyl adduct from all spin traps.
(7) After the first stage of analysis the spin systems of 60 of the 77 residues were assigned to the appropriate residue type, providing an ample basis for subsequent sequence-specific assignments.
(8) A method using selective saturation pulses and gated spin-echo MRI automatically corrects for this motion and thus eliminates misregistration artifact from regional function analysis.
(9) The Iranians have accused the Israelis and the US of designing and deploying Stuxnet, which set some of their centrifuges spinning out of control.
(10) Single vertical spin and electron microscopy analyses of these HDL subpopulations demonstrated that acid elution from the affinity columns caused no detectable change in size and density of the three subpopulation particles.
(11) The Soret MCD of the reduced protein is interpreted as th sum of two MCD curves: an intense, asymmetric MCD band very similar to that exhibited by deoxymyoglobin which we assign to paramagnetic high spin cytochrome a3(2+) and a weaker, more symmetric MCD contribution, which is attributed to diamagnetic low spin cytochrome a2+.
(12) For dipeptides containing the amino terminal residues glycine, alanine and phenylalanine, abstraction of the hydrogen from the carbon adjacent to the peptide nitrogen was the major process leading to the spin-adducts.
(13) A single spin density gradient ultracentrifugation method in a swinging bucket rotor has been applied for the detection and isolation of low density lipoprotein (LDL) subfractions.
(14) In addition to rapid motions, slow motions were detected by 1H spin-lattice relaxation time in the rotating frame (TH1 rho) and cross-polarization time (TCH), together with data from static spectra, indicating that the aliphatic portion of the detergent interacts more strongly with hydrophobic protein surfaces than do the polar heads.
(15) In addition, the spin lattice relaxation time of the cytoplasmic Cs resonance was approx.
(16) 220 MHz proton Fourier transform (FT) NMR with quadrature phase detection (QPD) technique is applied to observe largely hyperfine-shifted signals of various hemoproteins and hemoenzymes in ferric high-spin state.
(17) Under aerobic conditions, electron spin resonance spectroscopy showed evidence for the production of AZQ semiquinone (AZQH) and oxygen radicals.
(18) With these compounds, the spin density at the nitro group was greater than with nifurtimox, nitrofurazone and nitrofurantoin.
(19) Probing of the active site of microsomal cytochrome P-450 was carried out with a spin label derived from 2-methyl-1,2-bis(3-pyridyl)-1-propanone (metyrapone).
(20) The electronic structure of the low-spin ferric iron in cyanide complex appears to be modulated by halide binding to a protonated amino acid in the distal heme cavity.
Vortex
Definition:
(n.) A mass of fluid, especially of a liquid, having a whirling or circular motion tending to form a cavity or vacuum in the center of the circle, and to draw in towards the center bodies subject to its action; the form assumed by a fluid in such motion; a whirlpool; an eddy.
(n.) A supposed collection of particles of very subtile matter, endowed with a rapid rotary motion around an axis which was also the axis of a sun or a planet. Descartes attempted to account for the formation of the universe, and the movements of the bodies composing it, by a theory of vortices.
(n.) Any one of numerous species of small Turbellaria belonging to Vortex and allied genera. See Illustration in Appendix.
Example Sentences:
(1) Arterial-type flows produced a pair of vortex sinks downstream of the branching port.
(2) However, the external muscle fibers of the ventricles ran clockwise from base to apex toward the center of the vortex, which had a striking resemblance to the normal rather than the mirror image pattern.
(3) She says that, while she stayed away from the more difficult ramifications of that upbringing, she nevertheless plunged right into the "hot quicksand" of the Arab-Israeli conflict, right down into the Biblical roots of Jewish-Muslim conflict in the story of Abraham, Hagar, Isaac and Ishmael (which she meditates upon in the opera's Hagar chorus), and into the vortex of questions about Israel's right to exist and what motivates terrorists.
(4) Nancy Curtin, the chief investment officer of Close Brothers Asset Management said: "The US economy didn't just grind to a halt in the first quarter – it hit reverse as the polar vortex took its toll.
(5) Electron microscopy and reactivation of infectivity by vortexing suggested that aggregation makes only a minor contribution to neutralization by IgG or IgM.
(6) This study employs classical inviscid fluid dynamics theory to investigate whether LV diastolic inflow volume and the size of the LV play a role in vortex ring formation.
(7) Azotobacter chroococcum (ATCC 7493) was grown in continuous culture with intense vortex aeration (stirring rate 1750 rpm) with up to 50% O2 in the gas phase.
(8) Vortex flow filtration (VFF) was used to concentrate viruses and dissolved DNA from freshwater and seawater samples taken in Florida, the Gulf of Mexico, and the Bahamas Bank.
(9) Specific modifications to the manual procedure include the use of serial vortex mixings in place of batchwise lateral shaking and the substitution of small (6 mL), disposable solid phase extraction columns driven by compressed gas for large (25 mL), gravity-fed, reusable glass columns.
(10) Flow separations also stimulate vortex formation and turbulent mixing at the downstream jet boundaries and thus may intensify blood damage by turbulent shear stresses.
(11) Both record, with power and sentient humanity, the vortex of war in our world today, and the millions these wars scatter and shatter across it, not least to Europe’s shores.
(12) This vortex, which persists into early systole, provides good washing of the VAD walls.
(13) It’s like you go through some crazy inter-dimensional vortex,” Barbe said.
(14) These vortexes were places where spiritual energy was at its highest point, where you could tap into the frequencies of the universe, where you could, by closing your eyes, start to change your life.
(15) After vortex-mixing and centrifugation, 30 microliters of 4 M K2HPO4 were added followed by gentle shaking.
(16) Excitation frequencies, based on vortex shedding, are estimated to be of the order 2-200 Hz, for the range of flow rates of the theoretical model.
(17) From September 1983 to March 1985, five patients who could not be weaned from extracorporeal circulation or who deteriorated in the recovery room have been treated with biventricular mechanical support using two vortex pumps, standard cannulas and tubing.
(18) This method is then used to study the formation of the sinus vortex and to confirm the predictions of the point vortex model with respect to the role of the vortex in valve closure.
(19) Several lines of evidence suggest that the phagocytic uptake depends, in part, upon the LDL receptor and not the acetyl-LDL receptor: 1) soluble, native LDL and beta-VLDL (but not acetyl-LDL) competed for uptake and degradation of LDL aggregates; 2) reductive methylation of LDL before vortexing reduced the effect of the aggregates on degradation and cholesterol esterification; 3) heparin, which inhibits binding of native LDL to its receptor, reduced the degradation of LDL aggregates.
(20) In contrast, partial heparin-less bypass (N = 5) using a centrifugal vortex pump was used after September 1988, and there were no haemorrhagic or paraplegic complications or mortality in this group.