What's the difference between compact and dense?

Compact


Definition:

  • (p. p. & a) Joined or held together; leagued; confederated.
  • (p. p. & a) Composed or made; -- with of.
  • (p. p. & a) Closely or firmly united, as the particles of solid bodies; firm; close; solid; dense.
  • (p. p. & a) Brief; close; pithy; not diffuse; not verbose; as, a compact discourse.
  • (v. t.) To thrust, drive, or press closely together; to join firmly; to consolidate; to make close; -- as the parts which compose a body.
  • (v. t.) To unite or connect firmly, as in a system.
  • (n.) An agreement between parties; a covenant or contract.

Example Sentences:

  • (1) The estimated DNA compaction ratio (approximately 3-fold) is consistent with a significant degree of nucleosome unfolding in the hyperstimulated BR genes.
  • (2) DNA compactization by protamines and histones HI is discussed in terms of the results obtained.
  • (3) At S-L clefts, paranodal-nodal regions, and Schwann cell nuclei, the axonal areas were smaller and the NF densities were higher than at compact myelinated regions.
  • (4) A compact attachment for microscope-type instruments is described enabling to introduce, rapidly and qualitatively, minute biological speciments into melted embedding medium and ensuring the safety of optics.
  • (5) Laminin was already present on the cell surface at the 2-cell stage, while nidogen was first detectable on compacted 8- to 16-cell stage morulae.
  • (6) Both types of molecules are compact and globular in shape and apparently contain beta-pleated sheet conformation.
  • (7) The tail region appeared to be cleaved off, making the head region less compact.
  • (8) Qualitatively the cell aspirator collected epithelial cells which were better preserved morphologically, but also a larger number of compact cell clusters.
  • (9) The ultrastructural study of nucleoli and ribonucleoprotein-containing structures in human seminiferous tubules revealed that the nucleoli of spermatogonia, spermatocytes and Sertoli cells exhibited a tripartite structure consisting of: a fibrillar center, a compact granular portion, and a reticular portion containing both pars fibrosa and pars granulosa.
  • (10) Compaction of the morula is a prerequisite for subsequent differentiation of the mouse embryo.
  • (11) Most double-helical segments were reactive to cobra venom ribonuclease to some degree; the exceptions were the five "long-range" helices that are probably compactly folded within the structure.
  • (12) During powder compaction on a Manesty Betapress, peak pressures, Pmax, are reached before the punches are vertically aligned with the centres of the upper and lower compression roll support pins.
  • (13) Based on these results we propose that the linearization of the DNA elution dose-response curve observed after chromatin decondensation reflects a reduction in the degree of chromatin compactness in the nuclear complexes that leads to a relatively uniform distribution of the DNA on the filter and reduces trapping of elutable material in the compact nuclear structures otherwise present.
  • (14) Cleavage to the compacted and cavitating stages was achieved in 78% and 69%, respectively, of human embryos cocultured in 24-48 hour human ampullary subcultures as compared to 50% and 33%, respectively, for embryos grown in culture medium alone.
  • (15) These observations strongly suggest that (i) GCN4 specifically recognizes the central base pair, (ii) the optimal half-site for GCN4 binding is ATGAC, not ATGAG, and (iii) GCN4 is a surprisingly flexible protein that can accommodate the insertion of a single base pair in the center of its compact binding site.
  • (16) In fact, the large scattering angle we chose, theta = 135 degrees, allowed us to assemble a very compact source-detector device.
  • (17) A monoclonal antibody to the cell adhesion molecule, E-cadherin, which mediates mouse embryo compaction, completely blocks compaction induced by these activators of PKC.
  • (18) At rostral levels, one third of the tracts are loosely built forming a king of curtain, while they become more compact at caudal levels.
  • (19) This shows that the compaction of chromatin associated with transcriptional inactivation does not require phosphorylation of H3 and suggests that the level of basal phosphorylation of H1 is not correlated with the intensity of transcription or DNA replication.
  • (20) After 8 days of incubation, SM subdivides into superficial (compact) and deep (disperse) sublaminae.

Dense


Definition:

  • (a.) Having the constituent parts massed or crowded together; close; compact; thick; containing much matter in a small space; heavy; opaque; as, a dense crowd; a dense forest; a dense fog.
  • (a.) Stupid; gross; crass; as, dense ignorance.

Example Sentences:

  • (1) Patients with papillary carcinoma with a good cell-mediated immune response occurred with much lower infiltration of the tumor boundary with lymphocyte whereas the follicular carcinoma less cell-mediated immunity was associated with dense lymphocytic infiltration, suggesting the biological relevance of lymphocytic infiltration may be different for the two histologic variants.
  • (2) In spite of dense lymphocytic infiltration only 3% of the tumor infiltrating lymphocytes exhibit the activation marker CD 25.
  • (3) Immunogold electron microscopy demonstrated that outer dense fibres were the predominant immunoreactive site.
  • (4) Electron microscopy revealed the presence of a hitherto unreported peculiar "pilovacuolar" inclusion in numerous mitochondria, composed of an electron dense pile or rod within a vacuole, while globular or crystalline inclusions were absent.
  • (5) A recent report suggested that neurons in the prefrontal, anterior cingulate, and primary motor cortex of the brains of schizophrenic subjects may be less dense than those in the brains of nonschizophrenic subjects.
  • (6) Two years ago, the Intergovernmental Panel on Climate Change declared Egypt's Nile Delta to be among the top three areas on the planet most vulnerable to a rise in sea levels, and even the most optimistic predictions of global temperature increase will still displace millions of Egyptians from one of the most densely populated regions on earth.
  • (7) Chick sympathetic nerve fibers densely innervate expansor secundariorum muscle, but not skeletal muscle.
  • (8) Electron microscopy revealed a well-developed rough endoplasmic reticulum, an enlarged Golgi apparatus and many highly electron-dense secretory granules resembling those of Clara cells.
  • (9) In the first assay, we used a simple density separation technique to remove dense neutrophils (PMN) from suspensions of blood and of bone marrow cells prior to culture in semisolid agar.
  • (10) In contrast to the defect in another packaging-deficient mutant ts1201, the block in the formation of dense-cored, DNA-containing capsids in ts1233-infected cells at the NPT could not be reversed by transferring the cells to the permissive temperature in the presence of a protein synthesis inhibitor.
  • (11) The outstanding morphologic feature of cortical cells exposed to microunit ACTH concentrations for 40 min was the abundance of electron-dense granules (0.2-0.4 mum).
  • (12) The majority of intensively stained and densely packed cells have been observed in tv nucleus.
  • (13) The wall of the yolk sac thickens as a result of this infolding and the densely packed capillaries.
  • (14) Viral particles in the cultures and the brain were of various sizes and shapes; particles ranged from 70 to over 160 nm in diameter, with a variable position of dense nucleoids and less dense core shells.
  • (15) Martin O’Neill spoke of his satisfaction at the Republic of Ireland’s score draw in the first leg of their Euro 2016 play-off against Bosnia-Herzegovina – and of his relief that the match was not abandoned despite the dense fog that descended in the second half and threatened to turn the game into a farce.
  • (16) Phagosomes and dense bodies reminiscent of Russel bodies also occurred in the Mikulicz cells, in the vacuoles of which formations representing Klebsiella rhinoscleromatis were demonstrated.
  • (17) Electron microscopic examination of all leptomeningeal and meningioma cultures revealed desmosomes and dense tonofilament formation; in addition, granular, filamentous basement membrane-like material was abundant in the extracellular spaces of all cultures.
  • (18) Genes of the baker's yeast Saccharomyces cerevisiae are densely clustered on 16 linear chromosomes.
  • (19) The results suggest that the conversion of the HRP-TMB reaction product to an electron-dense form during osmication is intimately associated with the pH of the phosphate buffer and the total time of osmication.
  • (20) Chemical binding studies showed that the teichoic acid was the major uranyl binding component in isolated walls, from which it might be inferred that teichoic acid was located in the densely staining regions.