(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.
Boom
Definition:
(n.) A long pole or spar, run out for the purpose of extending the bottom of a particular sail; as, the jib boom, the studding-sail boom, etc.
(n.) A long spar or beam, projecting from the mast of a derrick, from the outer end of which the body to be lifted is suspended.
(n.) A pole with a conspicuous top, set up to mark the channel in a river or harbor.
(n.) A strong chain cable, or line of spars bound together, extended across a river or the mouth of a harbor, to obstruct navigation or passage.
(n.) A line of connected floating timbers stretched across a river, or inclosing an area of water, to keep saw logs, etc., from floating away.
(v. t.) To extend, or push, with a boom or pole; as, to boom out a sail; to boom off a boat.
(v. i.) To cry with a hollow note; to make a hollow sound, as the bittern, and some insects.
(v. i.) To make a hollow sound, as of waves or cannon.
(v. i.) To rush with violence and noise, as a ship under a press of sail, before a free wind.
(v. i.) To have a rapid growth in market value or in popular favor; to go on rushingly.
(n.) A hollow roar, as of waves or cannon; also, the hollow cry of the bittern; a booming.
(n.) A strong and extensive advance, with more or less noisy excitement; -- applied colloquially or humorously to market prices, the demand for stocks or commodities and to political chances of aspirants to office; as, a boom in the stock market; a boom in coffee.
(v. t.) To cause to advance rapidly in price; as, to boom railroad or mining shares; to create a "boom" for; as to boom Mr. C. for senator.
Example Sentences:
(1) Urban hives boom could be 'bad for bees' What happened: Two professors from a University of Sussex laboratory are urging wannabe-urban beekeepers to consider planting more flowers instead of taking up the increasingly popular hobby.
(2) That’s when you heard the ‘boom’.” Teto Wilson also claimed to have witnessed the shooting, posting on Facebook on Sunday morning that he and some friends had been at the Elk lodge, outside which the shooting took place.
(3) A few blocks away there are streets full of empty buildings, signs that the oil boom of the past decade is long past.
(4) Japan's 2% growth this year would be boosted by a construction boom after the tsunami in 2011 , while China would expand by 8.2% in 2012 and 9.3% in 2013.
(5) Midwives are facing increasing pressure with chronic staff shortages, the ongoing baby boom and increasing numbers of complications in pregnancy.
(6) Sometimes it can seem as if the history of the City is the history of its crises and disasters, from the banking crisis of 1825 (which saw undercapitalised banks collapse – perhaps the closest historic parallel to the contemporary credit crunch), through the Spanish panic of 1835, the railway bust of 1837, the crash of Overend Gurney, the Kaffir boom, the Westralian boom, the Marconi scandal, and so on and on – a theme with endless variations.
(7) According to unconfirmed reports, he made up to £3m a year through the years of boom and bust and he now owns a £4m home in Fulham and another worth £2m in Chelsea.
(8) When the Washington Post reports a boom in bullet-proof backpacks for children, it is not a good time to be a resident of a place colloquially known as The Arms.
(9) The Kremlin has so far refrained from dealing with mounting anger against people from Russia's turbulent North Caucasus region, as well as migrant workers from central Asia, which has grown as the country's oil-fuelled economic boom has given way to the hardship of the global financial crisis.
(10) & I'm like, babes, listen, I think Anna really is going to come & he's like, so I'll have what she's having, boom :(
(11) It is true that rail travel has seen a boom over the past 10 years.
(12) Malone's critics say he overpaid on a series of investments only to watch his firm's share price collapse with the end of the dotcom boom.
(13) However, the advent of the polymerase chain reaction, coupled with a boom in funding for human immunodeficiency virus research have moved retroviral research apace, raising questions as to whether novel contributions would be realized.
(14) Although the extra capital investment in schools is being portrayed as a reward for Gove for controlling his departmental budget, the government has little choice but to offer more cash due to the growing shortage of school places in the south-east caused by immigration and the baby boom.
(15) The first attempted to determine a sonic boom level below which startle would not occurr.
(16) Critics have warned that the boom is benefiting only a narrow elite while leaving the poor and jobless behind, exacerbating inequality and potentially sowing seeds of unrest.
(17) The human rights organisation, which has produced a series of in-depth reports detailing the grim working conditions of many of the 1.5 million migrant labourers engaged in a huge construction boom, said “little has changed in law, policy and practice” since the government promised limited reforms 12 months ago.
(18) Barack Obama has defied a Republican Congress to move ahead on his climate agenda on Wednesday, cracking down on methane emissions from America’s oil and natural gas boom.
(19) The endless immaturity of the baby-boom generation must surely be coming to a close, as we learn, at last, to grow up.
(20) In contrast to the aggressive capitalism of the US, for example, he observed that in spite of the Victorian boom: “England did not become a business society ...