(n.) A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface.
(a.) Having some property that belongs to an hyperboloid or hyperbola.
Example Sentences:
(1) When the myoepithelial cells contract they force the axial protrusion forward and transform the papilla into a hyperboloidal configuration.
(2) The cup-shaped adhesive papillae of Distaplia occidentalis evert at the onset of metamorphosis and each transforms into a hyperboloidal configuration.
(3) It has been shown previously that the hyperboloid can be considered as a scaffold describing the parallel beta-barrel structure.
(4) The sinuses are subsequently arranged into 4 classes, according to their similarity to solids of revolution such as: semi-ellipsoid (class a: 15% of specimens); paraboloid (class b: 30%); hyperboloid (class c: 47%) and cone (class d: 8%).
(5) We calculate values of SLk for the helical wrapping of a constant length of DNA on protein surfaces having the shapes of cylinders and of ellipsoids and hyperboloids of revolution.
(6) This could be demonstrated by a simple structural principle of the myocardium namely the myocardium fibres and connective tissue strands are arranged in the form of intermeshed hyperboloids.
(7) Eight-stranded beta-sheets in nine protein structures containing "TIM (triose phosphate isomerase) barrels" are shown to be fitted satisfactorily by hyperboloids, the generating lines of which pass through the beta-strands.
(8) In addition, we show how the hyperboloid model and the ensuing formalism can serve to derive useful geometric and graphic tools for computer-aided protein design de novo.
(9) ER binding capacity tended to be correlated with age: this correlation could be described with a hyperboloid regression curve (r = -0.5931; 0.06 > p > 0.05).
(10) The beta barrel fits a simple hyperboloid model as other T.I.M.
(11) Basic design features of the beta-sheet portion in parallel alpha beta barrels in known protein structures are analysed in the context of a model of a regular hyperboloid.
(12) Simple parameterizations of the hyperboloid model are then used to determine the constraints that govern key parameters, such as the number of strands in the barrel, and to rationalize the remarkable conservation of strand number, observed to be eight, in nearly all the known examples of parallel beta-barrels.
(13) It has been shown that the shape of the beta-sheet portion of the barrel can be approximated by a hyperboloid.
(14) If the equatorial radius of the protein is fixed, change in shape from a cylinder to a hyperboloid increases SLk, while the corresponding change to an ellipsoid reduces SLk.
Sheet
Definition:
(v. t.) In general, a large, broad piece of anything thin, as paper, cloth, etc.; a broad, thin portion of any substance; an expanded superficies.
(v. t.) A broad piece of cloth, usually linen or cotton, used for wrapping the body or for a covering; especially, one used as an article of bedding next to the body.
(v. t.) A broad piece of paper, whether folded or unfolded, whether blank or written or printed upon; hence, a letter; a newspaper, etc.
(v. t.) A single signature of a book or a pamphlet;
(v. t.) the book itself.
(v. t.) A broad, thinly expanded portion of metal or other substance; as, a sheet of copper, of glass, or the like; a plate; a leaf.
(v. t.) A broad expanse of water, or the like.
(v. t.) A sail.
(v. t.) An extensive bed of an eruptive rock intruded between, or overlying, other strata.
(v. t.) A rope or chain which regulates the angle of adjustment of a sail in relation in relation to the wind; -- usually attached to the lower corner of a sail, or to a yard or a boom.
(v. t.) The space in the forward or the after part of a boat where there are no rowers; as, fore sheets; stern sheets.
(v. t.) To furnish with a sheet or sheets; to wrap in, or cover with, a sheet, or as with a sheet.
(v. t.) To expand, as a sheet.
Example Sentences:
(1) The popularly used procedure in Great Britain is that in which a sheet of Ivalon sponge is sutured to the sacrum and wrapped around the rectum thus anchoring it in place.
(2) Some dental applications of the pressure measuring sheet, such as the measurement of biting pressure and balance during normal and unilateral biting, were examined.
(3) An accurate and reproducible method is described for generating a map of the cobalt sheet source from images of it made in multiple positions with the scintillation camera.
(4) Dose distributions were evaluated under thin sheet lead used as surface bolus for 4- and 10-MV photons and 6- and 9-MeV electrons using a parallel-plate ion chamber and film.
(5) The compromised ice sheet tilts and he sinks into the Arctic Sea on the back of his faltering white Icelandic pony.
(6) Expansion of the cell sheet following attachment, and the fusion of epiblasts advancing toward each other, does not require the presence of mineralocorticoid.
(7) The type I cells are squamous and give off attenuated sheets of cytoplasm which spread widely over the septal surface; these sheets contain few organelles.
(8) The frequency spectra of transmission coefficients for ultrasound passing through a sheet of gas-filled micropores have been measured using incident waves with amplitudes up to 2.4 x 10(4) Pa.
(9) Both types of molecules are compact and globular in shape and apparently contain beta-pleated sheet conformation.
(10) In the high-grade component, the blasts occurred in clusters or sheets, and often possessed plasmacytoid cytoplasm; glandular invasion was a rare event.
(11) A template showing typical histograms from commonly occurring CLPD was also produced on an acetate sheet.
(12) These findings suggest that the presence of features such as large prominent nucleoli, tumor growth in sheets, individual-cell necrosis, and nuclear pleomorphism may be used to predict recurrence of subtotally resected meningiomas that would not be classified as malignant by traditional criteria.
(13) The conformational similarity between tubules, sheets, and the dry powder is corroborated by calorimetry, which reveals a cooling exotherm at the same temperature where tubules form upon cooling hydrated sheets.
(14) The cortical vitreous of the normal (control) eye appeared to be a lamellar structure composed of sheets of collagen mesh.
(15) A central eight-stranded beta-pleated sheet is the main feature of the polypeptide backbone folding in dihydrofolate reductase.
(16) In order to clarify the role of dialyzer geometry, the effect of hollow-fiber versus flat-sheet dialyzers and of different surface areas on C3a generation and leukocyte degranulation was investigated.
(17) The simultaneous binding of the polypeptidic molecules to two opposing bilayers appears to be required in order to preserve the beta-sheet structure at pressures over approximately 9 kbar: a small proportion of the polypeptide, most likely the molecules at the surface of the aggregated bilayers, was found to convert to unordered and eventually to alpha-helical conformations in the pressure range 9-19 kbar.
(18) Pterygia, triangular sheets of fibrovascular tissue that invade the cornea, have recurrence rates of 30% to 50% with currently available surgical procedures.
(19) Cells containing A-layer and isolated A-layer sheets specifically bound laminin and fibronectin with high affinity.
(20) Under fluoroscopic control a lower polar calix was punctured with 18 G sheathed needle; a guide wire was introduced through the sheet.