What's the difference between polyhedron and stellation?

Polyhedron


Definition:

  • (n.) A body or solid contained by many sides or planes.
  • (n.) A polyscope, or multiplying glass.

Example Sentences:

  • (1) These viruses are short-tailed polyhedrons resembling the SpV3 virus of Spiroplasma citri, and all have been shown to lyse at least one other strain of SRO.
  • (2) In the intact and elastase-treated cages, the clathrin extends from the vertices into the interior of the polyhedron and forms an inner shell of material.
  • (3) These observations were compared with the possible combinations of polygonal sections through various polyhedral models proposed by other workers and the five classical regular polyhedrons.
  • (4) The Voronoi polyhedron of a given S-phase cell nucleus is that polyhedron of minimal volume defined by planes all of which are perpendicular bisectors of the vectors extending from the given cell to all other S-phase cells in the tumor.
  • (5) The co-ordination polyhedron displays approximate 4m2 symmetry.
  • (6) A minimal data structure of the polyhedron is then proposed, which contains only topological informations, since no coordinates have been generated.
  • (7) We hypothesize that this distinct 9S form represents a major oligomeric subunit involved in assembly and disassembly of clathrin polyhedron coats in the living cell.
  • (8) Bioassays of the two pure virus variants in M. brassicae larvae have shown the LD50 values to be 4610 polyhedron inclusion bodies (pibs) for PfMNPV(A) and 5937 pibs for PfMNPV(B).
  • (9) Electron micrographs suggest that the eight subunits form a polyhedron of point symmetry D4, or 42.
  • (10) A suitable composition for the residual glass phase of bioactive glass-ceramics can be found approximately and controlled on the basis of calculation of a structural parameter Y, which in the simplified concept of the glass structure corresponds to the mean number of bridging oxygens per polyhedron in the glass lattice.
  • (11) The direct assay using 125I-labeled rabbit immunoglobulins could detect 0.2 microng of polyhedron protein, and the indirect method using 125I-labeled sheep antirabbit immunoglobulins could detect 0.05 microng of polyhedron protein.
  • (12) Morphologically, the virus is a rectilinear polyhedron 270 A in diameter, without a process.
  • (13) The biological function of zinc is governed by the composition of its tetrahedral coordination polyhedron in the metalloprotein, and each ligand group that coordinates to the metal ion does so with a well-defined stereochemical preference.
  • (14) Successive calvarial and craniofacial polyhedron expansion, as well as weight, showed considerable variability and interindividual variation throughout the observation period.
  • (15) A complementary DNA that encodes a bovine brain, calmodulin-sensitive (type I) adenylylcyclase has been inserted into the baculovirus genome under the control of the strong polyhedron promoter.
  • (16) The head of phi25 is a regular polyhedron measuring 75 nm in diameter.
  • (17) 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.
  • (18) for the optimum approximation of experimentally obtained values of the output signal, the method of the changeable polyhedron was applied belonging to the optimalization numerical methods used in the regulation technics.
  • (19) The coordination polyhedron of catalytic zinc is usually dominated by histidine side chains.
  • (20) The weak NO3- inhibitor does not displace Wat263 from the metal coordination but occupies a fifth binding site changing the zinc coordination polyhedron into a slightly distorted trigonal bipyramid.

Stellation


Definition:

  • (n.) Radiation of light.

Example Sentences:

  • (1) Following injections of HRP into the apex of the heart, the sinoatrial (SA) nodal region and the ventral wall of the right ventricle, we observed that HRP-labeled sympathetic neurons were localized predominantly in the right stellate ganglia, and to a lesser extent, in the right superior and middle cervical ganglia, and left stellate ganglia.
  • (2) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
  • (3) On the right side these nerves consist of a very small right stellate cardiac nerve, a recurrent cardiac nerve, a group of craniovagal nerves and a group of caudovagal cardiopulmonary nerves.
  • (4) Astrocytes nearer the optic disc showed the stellate shape characteristic of mature cells.
  • (5) Distribution of neurons, forming cardiac nerves of the cat stellate ganglion, has been investigated.
  • (6) Some of the parallel fibers, which display presynaptic vesicular grids, established synaptic contact with stellate cells and the dendritic spines of the few Purkinje cells that survived the treatment.
  • (7) Light and electron microscopic analysis showed a high concentration of this enzyme in stellate cells, particularly heavily distributed under the organ capsule and scattered in the parenchyma, where they form a widespread three-dimensional network.
  • (8) By Western blot analysis we found that cultivated liver stellate cells secreted RBP into the medium.
  • (9) Coagulation factors II, V, VII and X (FII, FV, FVII and FX) were detected in a huge number of cells showing spindle-shaped or stellate morphology.
  • (10) Type II cells are angular or stellate and contain numerous secretory granules averaging 200-220 nm in diameter.
  • (11) Despite the pleomorphism and the variation of cell components, it is suggested that the stellate, intermediate and physaliferous cells, constitute the same cell at different stages of maturation.
  • (12) The cell shape varied greatly and included dendritic, stellated and strap-shaped forms as well as multinucleated giant cells, similar to those of juvenile melanomatas.
  • (13) Treatment of astrocytes with dibutyryl cyclic AMP induced stellation and increased the maximum rate of ascorbate uptake by 53%.
  • (14) Parenchymal cells accounted for about 75-80% of the total hepatic content of these two enzyme activities, with the rest located in stellate cells.
  • (15) Rat TSH cells were ovoid or angular to stellate, and contained granules ranging in size from 60-175 nm.
  • (16) Pigeon Type I horizontal cells are Cajal's "brush-shaped" cells, and their axon terminals resemble Cajal's "stellate" cells.
  • (17) Its effect on neuroblastoma cells is slightly different from that observed after serum deprivation, as a significant proportion of stellate cells, with short and branched neurites, is observed.
  • (18) The ansae subclaviae, T3 and T4 rami, and stellate ganglion were also examined by electron microscopy for the extent of Wallerian degeneration.
  • (19) Such cells invariably had a stellate morphology; in many cases, they appeared quite similar to the starburst cholinergic amacrine cells described in rabbit and rat (Vaney, 1984; Voigt, 1986).
  • (20) With the exception of five neurons, only those neurons that were responsive to electrical stimulation of the left stellate ganglion were tested for responses to these stimuli.

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