What's the difference between clearance and headway?

Clearance


Definition:

  • (n.) The act of clearing; as, to make a thorough clearance.
  • (n.) A certificate that a ship or vessel has been cleared at the customhouse; permission to sail.
  • (n.) Clear or net profit.
  • (n.) The distance by which one object clears another, as the distance between the piston and cylinder head at the end of a stroke in a steam engine, or the least distance between the point of a cogwheel tooth and the bottom of a space between teeth of a wheel with which it engages.

Example Sentences:

  • (1) Disease stabilisation was associated with prolonged periods of comparatively high plasma levels of drug, which appeared to be determined primarily by reduced drug clearance.
  • (2) Work on humoral responses has focused on lysozyme, the hemagglutinins (especially in the oyster), and the clearance of certain antigens.
  • (3) It is suggested that the rapid phase is due to clearance of peptides in the circulation which results in a fall to lower blood concentrations which are sustained by slow release of peptide from binding sites which act as a depot.
  • (4) In addition to esophageal manometry, we also performed acid-clearance studies and examined salivary output, acid-neutralizing capacity, and bicarbonate concentration.
  • (5) There was no correlation between disturbed gastric clearance, impaired gall bladder contraction, and prolonged colonic transit time in the patients with cardiovascular autonomic neuropathy nor was there a correlation between any disturbed motor function and age or duration of diabetes.
  • (6) Pharmacokinetic parameters, such as these clearances, had large intersubject variations.
  • (7) Mortality, blood clearance and organ distribution of 125I labelled Escherichia coli were determined.
  • (8) Unbound fractions was significantly correlated with serum albumin concentration (r = -0.344, p less than 0.046) and renal clearance (r = 0.394, p less than 0.021) but not with total body clearance or volume of distribution.
  • (9) Renal blood flow was measured in all patients by Hippuran-clearance and xenon-washout.
  • (10) Temelastine produces these species-specific changes by enhancing thyroxine clearance from the circulation in the rat, but not in the dog or mouse.
  • (11) Our study suggests that a major part of the renal antimineralocorticoid activity of spironolactone may be attributable to minor sulfur-containing metabolites or their precursors having a high renal clearance that affords access to their site of activity via the renal tubular fluid.
  • (12) Degraded visual acuity had a significant effect on cadence, foot placement, and foot clearance, but visual surround conditions did not.
  • (13) These results suggest that glomerular IgA are IgA polymers and decreased hepatic clearance of hepatic IgA polymers may be responsible for the glomerular deposition of IgA.
  • (14) Furthermore, the changes in both interstitial fluid and testicular venous blood levels of testosterone do not always parallel those in peripheral venous blood, suggesting that changes in testicular blood flow and peripheral clearance rates of testosterone may also be important in the control of circulating testosterone concentrations.
  • (15) Isolated renal tubules and renal clearance techniques were used to characterize the renal handling of 2-deoxy-D-galactose (2-d-Gal) by the winter flounder (Pseudopleuronectes americanus).
  • (16) Moreover, the most recent combined application of the rat interstitial cell testosterone (RICT) bioassay and a novel multiple-parameter deonvolution model has allowed investigators to dissect plasma concentration profiles of bioactive LH into defined secretory bursts, which have numerically explicit amplitudes, locations in time, and durations, and are acted upon by determinable subject- and study-specific endogenous metabolic clearance rates.
  • (17) [14C]Sucrose biliary clearance increased in treated animals, suggesting an increased permeability of the biliary system to sucrose.
  • (18) In view of its significant effects on drug metabolizing enzymes and clearance mechanisms, it is important to know its disposition characteristics.
  • (19) The time to recovery of full consciousness, time to parasite clearance, and mortality were examined with Cox proportional-hazards regression analysis.
  • (20) Tracheal mucus transport rate (TMTR) and quantitative clearance of aerosolized Escherichia coli from the trachea, lung, and air sac were measured in healthy unanesthetized turkeys and in turkeys exposed by aerosol to a La Sota vaccine strain of Newcastle disease virus (NDV).

Headway


Definition:

  • (n.) The progress made by a ship in motion; hence, progress or success of any kind.
  • (n.) Clear space under an arch, girder, and the like, sufficient to allow of easy passing underneath.

Example Sentences:

  • (1) A recent UN study ranked Brazil 116th out of 143 countries in terms of the proportion of women in the national legislature and efforts to remedy this with a quota system – such as those adopted by neighbouring Argentina and Bolivia – have made little headway, despite Suplicy's heavy campaigning.
  • (2) On the basis of their review, the authors conclude that, generally speaking, suicide prediction research has made little headway over the past 25 years.
  • (3) Although the conservative-dominated coalition has made headway in purging the state sector since it assumed power in June 2012, sceptical attitudes have been hard to erase.
  • (4) That there is now genuine competition among them for the best talent, that the internet and the international viewing audience now mean programme makers can circumvent traditional channels and commissioners if they feel they're making no headway for them.
  • (5) Its findings – including evidence that the Republican nominee is making dramatic headway with female voters, young people and those in the heartlands of the mid-west – appear to confirm that Obama's listless performance at the debate, and by contrast Romney's strong showing, has translated into a powerful political force.
  • (6) There has been an effective ban on federal funding related to gun violence prevention research since 1996, when Congress put language in its Appropriations Bill stipulating: “None of the funds made available for injury prevention and control at the Centers for Disease Control and Prevention may be used to advocate or promote gun control.” This hamstrings our national health protectors, CDC and the National Institutes of Health, from getting the science necessary to make headway.
  • (7) Those in Bangladesh who demanded government intervention in one of the country's few economic success stories made little headway when dozens of garment factory owners sat in parliament and powerful industry bodies had the ear of policymakers.
  • (8) Qatar’s sports minister, Salah bin Ghanem bin Nasser al-Ali, on Tuesday told Associated Press that it was making headway.
  • (9) The National Farmers Union is taking legal advice to try to get compensation for the region's farmers but regional director Melanie Squires said they were having a "torrid time" making any headway with the Department for Environment, Food and Rural Affairs.
  • (10) Meanwhile the government appears to be making little headway in negotiations with the crossbench over the $5.5bn it wants to cut from family tax benefit B, which is paid to single parents and single income families earning up to $150,000, to fund its $3.5bn childcare plan.
  • (11) Britain believes that the twin-track approach to dealing with Iran's nuclear ambitions – negotiations and sanctions – is failing to make much headway, and Cameron expects to receive support for tightening sanctions.
  • (12) The UK has made headway in some respects on gender equality at work, according to separate research published on Monday that shows the country rising up a “women in work” league table .
  • (13) Though deadlocked at home, Barack Obama impressed both sides of British politics and in 2009 entered the hostile atmosphere of the Kremlin to befriend the then-president Dmitry Medvedev and make headway on a difficult disarmament treaty.
  • (14) Activists fear that as western troops head home, taking with them both money and the attention of the voting public back home, conservatives are making headway in undermining rights they see as a foreign imposition.
  • (15) Attempts by doctors to change the public conversation made little headway, and those who continued to prescribe opiates to addicts as part of treatment programs were jailed .
  • (16) While biomedical research continues to make headway in uncovering factors related to the disease, the causes, and therefore, the treatment remain just beyond our reach.
  • (17) EADS on the other hand has struggled to make as much headway in the US defence market, and analysts say the Americans may downgrade BAE's SSA if it looks as if France may interfere.
  • (18) Hopes of headway being made late Wednesday when the two party leaders met with prime minister Antonis Samaras for talks aimed at finally forging some consensus fell on stony ground.
  • (19) Others, including the Dutch finance minister, Jeroen Dijsselbloem – who chairs the Eurogroup of euro area finance ministers – continued to blame the lack of headway on Athens.
  • (20) Their leader had tried this line of the attack the previous week and made little headway.