(n.) A carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy.
(n.) A fortress or fortified town, on the frontier of a country, commanding an avenue of approach.
(n.) A fence or railing to mark the limits of a place, or to keep back a crowd.
(n.) An any obstruction; anything which hinders approach or attack.
(n.) Any limit or boundary; a line of separation.
Example Sentences:
(1) Here we have asked whether protection from blood-borne antigens afforded by the blood-brain barrier is related to the lack of MHC expression.
(2) We conclude that chloramphenicol resistance encoded by Tn1696 is due to a permeability barrier and hypothesize that the gene from P. aeruginosa may share a common ancestral origin with these genes from other gram-negative organisms.
(3) The findings clearly reveal that only the Sertoli-Sertoli junctional site forms a restrictive barrier.
(4) This suggests that a physiological mechanism exists which can increase the barrier pressure to gastrooesophageal reflux during periods of active secretion of the stomach, as occurs in digestion.
(5) Comparison of the 50% binding concentrations of the compounds for the various PBPs of the five strains with their antibacterial activity indicates that the different antibiotics are excluded to a greater or lesser degree by the outer membrane permeability barrier and that the exclusion is most pronounced in P. aeruginosa.
(6) Preservation of dopaminergic and H1 neurotransmission, probably within the blood barrier, is needed to allow the neuroendocrine transduction of cholinergic inputs, whereas the role of 5-HT neurotransmission remains uncertain.
(7) Their levels in urine are a useful indicator of the integrity of membrane barriers of the kidney glomerular capillary wall.
(8) The IgG index (formula: see text) corrects for the influence of serum protein abnormalities as well as a bloodbrain barrier damage and is, therefore, a better measure for the presence of an IgG elevation in CSF due to IgG synthesis, when compared with other IgG quotients commonly used.
(9) In the far east is the arid, depressed country leading down Hell’s Canyon, which bottoms out at the Snake River, which the wolves crossed when they moved from Idaho, and which they now treat more as a crosswalk than a barrier.
(10) No signs of the blood-brain barrier disruption were observed.
(11) Although no anatomical 'barrier' has been described, it has been suggested that the gel mucus and epithelial phospholipids are constituents.
(12) Despite their wide dispersion, Vmax and the stereological determinations correlated strongly at 2 mo of age, confirming that Vmax is a robust indicator of the surface area of the air-blood barrier.
(13) Developmental changes are delineated, with particular reference to recent work on the ovine blood-brain barrier.
(14) Features of barrier island physiography and ecology were studied relative to selective bait deployment and site biosecurity.
(15) This study sought to determine if and why barriers to the over-the-counter purchase of syringes in the St. Louis metropolitan area might exist, given that no ordinance prohibits such a sale there.
(16) It is suggested that the intercalated disc functioned as a barrier to the freezing process.
(17) To explain some of these results a theoretical model is presented to demonstrate that while short circuiting can block the passive ionic movement, it will cause an increase in the energy consumption of the system and introduce certain important changes in the ionic barriers and e.m.fs.
(18) Our results show that paramagnetic enhancement with T1-weighted imaging adds specificity and enables rapid assessment of abnormalities of the blood-brain barrier.
(19) A functional impairment of the amino acid transport systems at the level of the blood-brain barrier seems to play a crucial role in causing deleterious modifications of the synaptic neurotransmission in the central nervous system.
(20) There was a significant correlation between the lesion index and the PD reduction, although the integrity of the resting gastric mucosal barrier remained unaltered.
Curtain
Definition:
(n.) A hanging screen intended to darken or conceal, and admitting of being drawn back or up, and reclosed at pleasure; esp., drapery of cloth or lace hanging round a bed or at a window; in theaters, and like places, a movable screen for concealing the stage.
(n.) That part of the rampart and parapet which is between two bastions or two gates. See Illustrations of Ravelin and Bastion.
(n.) That part of a wall of a building which is between two pavilions, towers, etc.
(n.) A flag; an ensign; -- in contempt.
(v. t.) To inclose as with curtains; to furnish with curtains.
Example Sentences:
(1) To a supporter at the last election like me – someone who spoke alongside Nick Clegg at the curtain-raiser event for the party conference during the height of Labour's onslaught on civil liberties, and was assured privately by two leaders that the party was onside about civil liberties – this breach of trust and denial of principle is astonishing.
(2) In assessing damaged nets and curtains it must be recognised that anything less than the best vector control may have no appreciable impact on holoendemic malaria.
(3) We are drawing back the curtains to let light into the innermost corridors of power."
(4) Blatter’s spokesman, Klaus Stöhlker, told Press Association on Thursday: “Before the decision was taken, in the case of Russia and the USA there were ‘behind-the-curtain’ talks.
(5) At rostral levels, one third of the tracts are loosely built forming a king of curtain, while they become more compact at caudal levels.
(6) Artists in Russia have begun warning of a new "iron curtain" falling over the country, as ever more western stars become targets of the country's crackdown on culture.
(7) The damning comments by Judge Alistair McCreath both vindicated Contostavlos – who insisted she was entrapped by the reporter into promising to arrange a cocaine deal – and potentially brought down the curtain on the long and controversial career of Mahmood, better known as the "fake sheikh" after one of his common disguises.
(8) You can use absolutely anything - an unwanted T-shirt, some old curtains, something you picked up in a charity shop ... Garish 70s-style prints you probably wouldn't dream of wearing work surprisingly well in soft toys: they are cute, they can pull it off.
(9) But homewares, which Street calls the store chain's "point of fame", are well down as a result of fewer people moving house and therefore not popping in to John Lewis to order big-ticket items such as carpets, curtains and furniture.
(10) The term comes from the Urdu ( parda ) and Persian ( pardah ) word meaning veil or curtain and is also used to describe the practice of screening women from men or strangers.
(11) In net-curtained rooms above a disused kebab shop on Cricklewood Broadway, a small group of middle-aged men were at work as usual when they found themselves at the centre of a national terror warning.
(12) He had a private table on Dakota’s second floor that would often be cordoned off by a curtain upon his party’s arrival.
(13) Hence the nerves, hence the curtain twitching, hence the good tea cups and posh biscuits laid out on the table.
(14) Everyone expects it to be curtains for shipbuilding.
(15) Cyrus, who was standing on a nearby stage, said: “We’re all in the industry, we all do interviews and we all know how they manipulate shit.” Near the end of the broadcast, Cyrus spoke from behind a black curtain as she changed clothes.
(16) The few that remain benefit from ample provisions, friendly volunteers and cardboard-and-curtain partitions designed by the world-famous architect, Shigeru Ban .
(17) Sisal eaves curtains deterred mosquitoes from hut entry but did not kill those that had entered.
(18) Behind him is a blue curtain designed like the national flag with a white star and the words: "I love Somalia."
(19) Nigel Farage has declared it will be “curtains” for him as UK Independence party leader if he fails to win his target parliamentary seat of South Thanet.
(20) The log casts no further light on the blacked-out portion of the execution that lasted 27 out of the 43 minutes, in which a curtain was drawn over the viewing screen preventing witnesses from observing what was unfolding.