What's the difference between oblate and prolate?

Oblate


Definition:

  • (a.) Flattened or depressed at the poles; as, the earth is an oblate spheroid.
  • (a.) Offered up; devoted; consecrated; dedicated; -- used chiefly or only in the titles of Roman Catholic orders. See Oblate, n.
  • (a.) One of an association of priests or religious women who have offered themselves to the service of the church. There are three such associations of priests, and one of women, called oblates.
  • (a.) One of the Oblati.

Example Sentences:

  • (1) Boys from King Edward VI grammar school will lay oblations inside Holy Trinity church, while the Coventry Corps of Drums prepares to lead a "people's parade" towards Bancroft Gardens, where the River Avon widens, and where – if you're lucky – you might see a swan or two cruise by.
  • (2) From the relaxation times and the orientation mechanisms, the nucleosome may be assimilated to an oblate ellipsoid of dimensions about 140 x 140 x 70 A, and the DNA superhelical axis is parallel to its shorter axis.
  • (3) R. of less than 2.6 were oblate and exhibited no significant changes in asymmetry or aggregation number with changes in the amount of solubilized water.
  • (4) n. were analysed and a line of succesively improving approximations of the molecule shape was found: by oblate ellipsoid a:b:c = 1:10.63, by continuous cylinder and hollow cylinder with H = 50 A, 2R = 76 A, 2r = 8A.
  • (5) Assuming constancy of surface area and approximating red cell shapes by both prolate and oblate ellipsoids of revolution, values are determined for cell shape factor and volume under a variety of conditions.
  • (6) The electrical shape effect for erythrocytes is consistent with an oblate ellipsoidal particle with a diameter-to-thickness ratio of 4.
  • (7) With the oblateness of dose efficiency distribution towards the axis of source with the "line-shaped" 192Ir-source an improvement of dose distribution occurs in intracavitary irradiation with the lower and more balanced exposure of fundus uteri, especially in irradiation of the endometrial carcinoma.
  • (8) Upon shrinking, more vesicles became oblate, the halo was obliterated and the electron-density of the matrix increased.
  • (9) The energy barrier to adsorption, present at sufficiently large surface pressures, was found to be higher for smaller surface hydrophobicities, larger surface pressures, larger size molecules, and oblate orientation of an ellipsoidal molecule.
  • (10) All the experimental data can be explained by the same basic model, consisting of three oblate-shaped domains arranged in a sandwich-like structure.
  • (11) The pronostic is excellent because the quite easy gallbladder oblation brings a quick recovery without after effects.
  • (12) Models that fit the data over the range of scattering angles from 0 to 30 mrad are: prolate ellipsoid with axial ratio 2.3, major axis 12 nm; and oblate ellipsoid with axial ratio 0.4 and major axis 10 nm.
  • (13) The shapes include discs, oblate spheroids, spheres and spindles.
  • (14) A model composed of four oblate ellipsoid monomers in a tetrameric rose arrangement is proposed for the shape of the dopamine beta-hydroxylase molecule.
  • (15) The enzyme may be assumed to be an oblate ellipsoid of revolution with dimensions of about 170 X 170 X 70 A.
  • (16) Sperm heads were examined by light microscopy and assigned to one of five classes: A. normal and near-normal, B. triangulate and oblate, C. spatulate, D. elongate, and E. filamentous.
  • (17) Although the disordered carbohydrate and the complexity of five disulfides in a 126-residue sequence have hampered the complete tracing of the peptide chain, two-thirds of the molecule has been accounted for in the form of an unusually oblate ellipsoid of about 15 X 30 X 35 A.
  • (18) Consequently, the 11S globulin molecule was also an oblate ellipsoid from beta.
  • (19) The production process of the coating sheet (oblate) was also studied.
  • (20) Furthermore, antibodies directed at mouse TNF but not against murine IL-1 alpha or murine IL-6 were able to oblate the enhanced target cell lysis of unfixed, as well as paraformaldehyde fixed (metabolically inactive) Kupffer cells.

Prolate


Definition:

  • (a.) Stretched out; extended; especially, elongated in the direction of a line joining the poles; as, a prolate spheroid; -- opposed to oblate.
  • (v. t.) To utter; to pronounce.

Example Sentences:

  • (1) The uterine volume was measured in 30 patients 24 hours before hysterectomy by ultrasonography using the prolate ellipsoid formula.
  • (2) 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].
  • (3) Uterine volume, based on the ultrasound data, was calculated, utilizing the formula for a prolate ellipsoid, before and after treatment.
  • (4) Three commonly used prostate volume measurement techniques were analyzed: planimetry, prolate ellipse volume calculation (HWL), and an ellipsoid volume measurement technique.
  • (5) The left ventricle was modeled as a three-dimensional, prolate ellipsoidal shell.
  • (6) Several previous studies had indicated that S1 is a highly extended protein which can be modeled by a prolate ellipsoid with an axial ratio of 10 to 1.
  • (7) The length-to-width ratios of bacteriophage T2 and T4 heads and stereometric angles specifying the prolate icosahedral T2 capsid were evaluated on electron micrographs recorded from samples prepared by a variety of methods.
  • (8) The frictional ratio (2.14) is consistent with a prolate ellipsoid of axial ratio 24, corresponding to an apparent length and width of 516 and 21.5 A, respectively.
  • (9) The mutations of the three core genes (genes 67, 68, and 22) affect the width mainly by lateral outgrowths of the prolate particle, although small and large isometric particles are also found.
  • (10) This feature may be important in morphogenesis since the mean volume of prolate vesicles is larger than that of spherical vesicles.
  • (11) Assuming constancy of surface area and approximating red cell shapes by both prolate and oblate ellipsoids of revolution, values are determined for cell shape factor and volume under a variety of conditions.
  • (12) Consequently, more adsorption occurred at larger surface hydrophobicities, smaller size molecules, and for prolate orientation of ellipsoidal molecules.
  • (13) It had a prolate head and non-contractile tail and produced large haloes around plaques.
  • (14) In addition, although phase microscopic image analysis revealed that virtually all of the cells displayed a squamous morphology within 1 hour after exposure to FBS or TGF-beta 1, observations made 48 to 72 hours later showed the presence of clusters of small prolate spheroid-shaped cells surrounded by many involucrin-positive squamous-appearing cells.
  • (15) The paper explains how the formulas for calculating the surface area of the prolate spheroid, which a nucleus resembles, can be changed by suitable substitutions into formulas based on measured diameters l and k [mm] of the nucleus approach side surface, magnified 3.000 times, and on a mixed cyclometric function dependent on the axial ratio.
  • (16) Because high solvent content and weak diffraction are indicative of an extended flexible structure, we examined the molecular shape of the recombinant CD4 with ultracentrifugation and found that it has an axial ratio of roughly 6, when modeled as a prolate ellipsoid.
  • (17) The octamer is a prolate ellipsoid 110 angstroms long and 65 to 70 angstroms in diameter, and its general shape is that of a rugby ball.
  • (18) This area is about twice that calculated from a prolate ellipsoid model for prothrombin.
  • (19) Very simple formulas are deduced for the NSAR of a prolate spheroid or cylinder with R greater than 6.
  • (20) Vt is analogous to the equilibrium volume (V0), determined as the volume intercept of the logarithmic passive pressure-volume (P-V) relationship using LV volume estimated from LV weights (V0 nl = 37.6 + 4.4 ml), or the volume intercept of the linearized P-V relationship calculated from a prolate spheroidal model using measured minor and major diameters (V0 l = 44.5 + 3.5 ml).