(n.) The act of making compact, or the state of being compact.
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.
Sandstone
Definition:
(n.) A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.
Example Sentences:
(1) Flames could be seen through the scorched windows and billowing out of the roof of the sandstone building on the corner of Renfrew Street and Scott Street.
(2) Pueblo Bonita, constructed from artfully stacked sandstone blocks between AD900 and 1100, was once the centre of culture and commerce for the ancient Puebloan people .
(3) Aside from history enthusiasts and couples seeking privacy from the crowded city, few enter the red sandstone gate between the fort’s stout bastions.
(4) This is probably explained by the intensity of exposure and the particular kind of sandstone being worked.
(5) Inside the cottages – which sleep four, five and six people – oak beams and sandstone walls are offset by 21st-century comforts such as satellite TV, DVD players and dishwashers.
(6) The light sandstone Union Buildings , at 99 a year younger than the ANC, are a visual metaphor for the republic's rich and sometimes jarring contradictions.
(7) The prevalence of silicosis in these open-cast sandstone quarriers is unexpectedly high.
(8) For an intimate encounter with this geology and the water that helped to form it, head to the canyon systems of Wadi Mujib to take on the Malaqi Trail, a sandstone assault course of rocky scrambles and dizzying waterfall rappels.
(9) The standardized incidence ratio (SIR) for lung cancer was 200 (44 observed, 22.0 expected) for all skilled stone workers, 808 (7 observed, 0.9 expected) for skilled sandstone cutters in Copenhagen, 119 (8 observed, 6.5 expected) for skilled granite cutters in Bornholm, 181 (24 observed, 13.2 expected) for all unskilled stone workers, 246 (17 observed, 6.9 expected) for unskilled workers in the road and building material industry, and 111 (7 observed, 6.3 expected) for unskilled workers in the stonecutting industry.
(10) There's limestone and sandstone to the north, but Aswan's bedrock is hornblende granite.
(11) The iron-oxides (superfine hematite) are eroded from the Peron Sandstone exposed in some coastal cliffs and constitute up to 2% of substrate sediments near these cliffs.
(12) Many of the grindstones used in Nigerian homes are quarried from sandstone in a small group of villages near Kano in the extreme north of the country.
(13) It's nonsense: Brown at best is some sort of decayed shale, shattered rubble containing the odd fossil and Cameron a rather smart golden sandstone.
(14) It comes from the new locality of Xirochori in the red sandstone of the Nea Messimbria formation.
(15) Monument Valley is named for the dozens of free-standing sandstone buttes and monoliths that tower above the sweeping sagebrush landscape.
(16) For water-wet Berea Sandstone a flood front was readily observed, but some of the oil was apparently left behind in small, isolated pockets which were larger than individual pores.
(17) Mahendraparvata was never really "lost" – the mountain has long been known as the location of the sandstone quarries that built Angkor's cities, as well as the source of water for a complex system that irrigated the vast empire.
(18) From these offices, on the lower ground floor of a Victorian sandstone building in central Glasgow, campaigners with Yes Scotland are preparing to unleash a torrent of billboard adverts, celebrity endorsements, star-studded campaign rallies, street stalls and pop-up shops selling independence for Scotland .
(19) Carved into the sandstone bedrock of north-eastern Arizona, near Chinle, the three spectacular canyons, De Chelly, Del Muerto, and Monument, lie at the centre of the Navajo Nation and at the heart of many native legends.
(20) Experimental NMR imaging measurements of two-phase displacement were conducted in several limestones and sandstones representing various different types of pore structures, including a macroscopically homogeneous structure, a laminated structure, and a sample that exhibits porosity at different scales.