What's the difference between diamond and tetrahedron?

Diamond


Definition:

  • (n.) A precious stone or gem excelling in brilliancy and beautiful play of prismatic colors, and remarkable for extreme hardness.
  • (n.) A geometrical figure, consisting of four equal straight lines, and having two of the interior angles acute and two obtuse; a rhombus; a lozenge.
  • (n.) One of a suit of playing cards, stamped with the figure of a diamond.
  • (n.) A pointed projection, like a four-sided pyramid, used for ornament in lines or groups.
  • (n.) The infield; the square space, 90 feet on a side, having the bases at its angles.
  • (n.) The smallest kind of type in English printing, except that called brilliant, which is seldom seen.
  • (a.) Resembling a diamond; made of, or abounding in, diamonds; as, a diamond chain; a diamond field.

Example Sentences:

  • (1) The most suitable condition for mucosalplasty revealed the size of the diamond particle to be 200 microns, and rotational speed to be between 12,000-20,000 rpm.
  • (2) Of roots treated by diamond burs, 165 stained areas were evaluated; 9 (5.5%) exhibited bacteria.
  • (3) Hopes that the Queen's diamond jubilee and the £9bn spent on the Olympics would lift sales over the longer term have largely been dashed as growth slows and the outlook, though robust with a growing order book, remains subdued.
  • (4) The pieces include a barrel-shaped diamond worth at least $5m (£3.3m) and a Cartier diamond tiara estimated to be worth more than $100,000.
  • (5) The diamond midfield that Klinsmann has tried to introduce of late requires Altidore to do a lot of muscling and running up front, with Clint Dempsey free to run off him when the USA attack.
  • (6) In the context of a simplified diamond lattice model of a six-member, Greek key beta-barrel protein that is closely related in topology to plastocyanin, the nature of the folding and unfolding pathways have been investigated using dynamic Monte Carlo techniques.
  • (7) In the 18 asymptomatic diamond assorters, electrophysiological studies revealed an ulnar neuropathy in two (again in the hand used for holding the eye-glass).
  • (8) I don’t think if you go and pass a piece of legislation that said that a diamond is a square makes diamonds squares, they’re two different things.
  • (9) Left ventricular compliance was evaluated by various indices (Diamond, Mirsky, Gaasch, Laird), and was found to be increased equally in the chronic and acute types.
  • (10) The selection of diamond-coates whetstones manufactured by Chirana for turbine drills is extended at present by two new types of toods with a different size of diamond particles.
  • (11) This cross-sectional study was undertaken after the discovery of cobalt-related fibrosing alveolitis and bronchial asthma in diamond polishers occupationally exposed to cobalt.
  • (12) In January 2007 the Guardian disclosed that BAE had used an offshore front company, Red Diamond , to secretly pay £8.4m, 30% of the radar's ostensible price, into a Swiss account.
  • (13) Entwistle's chances were at one stage thought to have diminished in the wake of the much-criticised BBC coverage of the Diamond Jubilee pageant, which came under his responsibility.
  • (14) Each component of the bonding agent (Syntac: Ivoclar Vivadent) was labelled with a fluorescent dye, the unfilled resin being light cured for 30 s with the composite restoration placed in one increment and light cured for 40 s. The samples were longitudinally sectioned using a slow speed diamond saw underwater, either immediately or 24 h post placement.
  • (15) Sharply escalating the sanctions regime against Tehran, the EU also froze the Iranian central bank's assets in Europe and banned gold, precious metals and diamond transactions.
  • (16) Logging, cattle farming and soy plantations are key, plus the increased construction of dams and road, and shifting patterns of farming for local people and mining (for diamonds, bauxite, manganese, iron, tin, copper, lead and gold).
  • (17) The country’s supreme court ruled that Imelda Marcos illegally acquired the items, including diamond-studded tiaras and an extremely rare 25-carat pink diamond.
  • (18) They contrast this with the proposal that infants may make the AB error because of immaturity of the frontal lobe system (Diamond; Diamond & Goldman-Rakic).
  • (19) The exposure came from the diamond cobalt discs used for polishing diamonds, which had as the hard element microdiamonds, cemented in an alloy of pure cobalt.
  • (20) Bob Diamond did not believe he received an instruction from Paul Tucker or that he gave an instruction to Jerry del Missier.

Tetrahedron


Definition:

  • (n.) A solid figure inclosed or bounded by four triangles.

Example Sentences:

  • (1) In order to increase understanding of the control of inositol-1,3,4-trisphosphate kinase activity, the enzyme was highly purified from rat liver by precipitation with polyethylene glycol, MonoQ ion-exchange chromatography, heparin-agarose affinity chromatography, and a novel affinity chromatography procedure that utilized Affi-Gel resin to which InsP6 was coupled (Marecek, J.F., and Prestwich, G.D. (1991) Tetrahedron Lett.
  • (2) The folding of murine interleukin-1 beta is similar to that found for the human variant, consisting of 12 beta strands wrapped around a core of hydrophobic side chains in a tetrahedron-like fashion.
  • (3) The anion [Cd(DiMeDMSA)2]2- is essentially a distorted tetrahedron, with a mononuclear CdS4 kernel.
  • (4) If you're a researcher in any academic discipline, your reputation and career prospects are largely determined by your publications in journals of mind-bending specialisation – like Tetrahedron , a journal specialising in organic chemistry and published by the Dutch company Elsevier.
  • (5) Six shapes (ring, tetrahedron, cloverleaf, disk, string, and pellet) were screened in vivo for their gastric retention potential.
  • (6) 124, 107-115; Lowe (1976) Tetrahedron 32, 291-302] were based on assumed models that are not consistent with the X-ray-diffraction data for papain inhibited by alkylation of Cys-25 with N-benzyloxycarbonyl-Phe-Ala-chloromethane [Drenth, Kalk & Swen (1976) Biochemistry 15, 3731-3738].
  • (7) Reporting a set of bile samples on the tetrahedron of concentrations, a clear separation emerged between the control bile, the bile from patients with gallstones, and the bile of subjects with gallbladder dyskinesia.
  • (8) [1975), Tetrahedron Lett., 25, 2065-2068) and MAOP was synthesized by acetoxylation of MOP with lead tetraacetate.
  • (9) We have examined the mechanism of action of two natural products identified as broad spectrum antifungal agents (VanMiddlesworth, F., Dufresne, C., Wincott, F. E., Mosley, R. T., and Wilson, K. E. (1992) Tetrahedron Lett., in press; VanMiddlesworth, F., Giacobbe, R. A., Lopez, M. Garrity, G., Bland, J.
  • (10) Using an in vitro system of bubbles in water or gelatin, it was found that the ring-down artifact originated from the center of a cluster of four bubbles (bubble tetrahedron), three on top and one nestled beneath.
  • (11) The catalase molecule consists of four subunits whose centers from a fairly flattened tetrahedron.
  • (12) The observation of occasional triangular and dual-intensity projections and the interconversion of all three projection forms in tilting studies indicates that this tetrameric enzyme has a structure very similar to the tetrahedron-like configuration previously proposed for pyruvate carboxylases from vertebrate sources [Mayer, F., Wallace, J. C. and Keech, D. B.
  • (13) RV volume was calculated from the polyhedron created by the markers by decomposing the polyhedron into 24 tetrahedrons, each of whose volumes could be solved from the xyz-coordinates of markers.
  • (14) (1990, Tetrahedron 46, 2255) as an inhibitor of human leucocyte elastase (HLE) displayed potent, time-dependent inhibition of both HLE and human cathepsin G (Cat-G).
  • (15) The figure of tetrahedron is formed in certain species of Plectus and in Tobrilus gracilis at the stage of 4 blastomeres rather than a rhombus which is formed in most highly organized nematodes.
  • (16) A tetrahedronal symmetry is exploited, with two skewed plastic scintillator bars spanning a large sensitive volume.
  • (17) The tetrahedrons (each leg 2 cm in length) exhibited 91-100% retention at 24 hr.
  • (18) Altogether, the in vitro binding constant of seven molecules were used to deduce the geometry and the energetics of a possible site model consisting of five regions: one tetrahedron-shaped finite central hydrophobic pocket, one infinite region representing access to the solvent, and three strongly repulsive regions representing the sterically forbidden walls of the pocket.
  • (19) Phaseolin converts to an 18 S tetramer at acid pH, and images recorded under these conditions suggest that four of the 7 S protomer discs associate to form the faces of a regular tetrahedron.
  • (20) The volumes defined by four beads (a tetrahedron) at end diastole showed increases in myocardial mass of 20-27% after 3.6 (mean) weeks of hypertrophy and were uniform across the wall of the left ventricle.