(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.
Railing
Definition:
(p. pr. & vb. n.) of Rail
(a.) Expressing reproach; insulting.
(n.) A barrier made of a rail or of rails.
(n.) Rails in general; also, material for making rails.
Example Sentences:
(1) One man has died in storms sweeping across the UK that have brought 100-mile-an-hour winds and led to more than 50 flood warnings being issued with widespread disruption on the road and rail networks in much of southern England and Scotland.
(2) Liu was a driving force behind the modernisation of China's rail system, a project that included building 10,000 miles of high-speed rail track by 2020 – with a budget of £170bn, one of the most expensive engineering feats in recent history.
(3) Roger Madelin, the chief executive of the developers Argent, which consulted the prince's aides on the £2bn plan to regenerate 27 hectares (67 acres) of disused rail land at Kings Cross in London, said the prince now has a similar stature as a consultee as statutory bodies including English Heritage, the Commission for Architecture and the Built Environment and professional bodies including Riba and the Royal Institute of Chartered Surveyors.
(4) Publishing the government's low-carbon transport strategy, transport secretary Lord Adonis said the measures would save an additional 85m tonnes of CO2 over the period 2018-22, adding that the government would shortly announce plans for further electrification of the rail network.
(5) Senior executives at Network Rail are likely to be summoned to Westminster to explain the engineering overruns that caused chaos for Christmas travellers over the weekend.
(6) Rail campaigners claim that the convoluted carriage-ordering system contributes to overcrowding.
(7) Yu Xiangzhen, former Red Guard Photograph: Dan Chung for the Guardian Almost half a century on, it floods back: the hope, the zeal, the carefree autumn days riding the rails with fellow teenagers.
(8) He railed against the left’s lack of interest in tackling entrenched poverty.
(9) Maintaining air links between cities as far apart as Inverness and London makes sense, but at the same time we must invest in improvements to our rail network and make it easy to use technology to do business from anywhere in Scotland.
(10) Patronage at the airport in the early years would not justify a dedicated rail link.
(11) Refusing either to acquiesce in, or to rail at, Eliot's contempt for Jews, one strives to do justice to the many injustices Eliot does to Jews.
(12) It is true that rail travel has seen a boom over the past 10 years.
(13) Well, news from the commuters and the rail users is that we don't like it, and we want a cheaper more equitable service.
(14) Martin Frobisher, the area director for Network Rail, said: "The Northern Hub and electrification programme is the biggest investment in the railway in the north of England for a generation and will transform rail travel for millions of passengers every year."
(15) Japanese company Hitachi Rail is planning to invest £82m and create hundreds of jobs at a new train factory in Newton Aycliffe, Darlington, where it will build hundreds of carriages.
(16) Concluding an inquiry into the experience of rail passengers that became dominated by the events at Southern , the transport select committee said commuters had been badly let down.
(17) Rail travel cost the BBC £29,847 in the three months to the end of June 2010, rising to £47,358 in the same period the following year, during which corporation departments began moving from London to Salford, according to the corporation's latest quarterly travel and expenses figures released this week .
(18) In this inexplicable world of Roscos (rolling stock companies), TOCs (train operating companies) and the ORR (Office of Rail Regulation), some private firms are allowed to walk away from contracts rather than face losses – as First Group did on the Great Western last week, while others, such as Stagecoach, demand £100m extra just to keep their promises.
(19) "The soaring cost of air travel will ultimately be a small factor in increased rail fares, as the ONS said plane tickets pushed the inflation index higher.
(20) The transport secretary, Philip Hammond, indicated that the government had no appetite for the kind of structural tinkering that broke up British Rail and rushed the system into private ownership in the 1990s.