What's the difference between substract and subtract?

Substract


Definition:

  • (v. t.) To subtract; to withdraw.

Example Sentences:

  • (1) The urinary inactive kallikrein excretion was determined indirectly by substracting active kallikrein activity from total kallikrein activity.
  • (2) A dual isotope technique was evolved with a ratio substract system.
  • (3) The Type 2 and 3 cytosomes were the ultrastructural substract of Wright-Giemsa stained blue granules.
  • (4) The results indicate that bovine brain has a specific PACAP receptor, whose apparent molecular weight is 57 k (substracting the molecular weight of [125I]PACAP27 from 60 k).
  • (5) The mean threshold light sensitivity on Humphrey automated perimetry (Program 30-1) of one eye was substracted from the fellow eye total to yield the interocular visual field difference (VFD).
  • (6) We studied the role of fibronectin as a mediator between the substract and the endothelial cell.
  • (7) TTPs were substracted by differential recording and stimulation through matched micropipettes (one in the brain and one in contiguous electrolyte) and in addition were reduced by pressure ejection of electrolyte.
  • (8) The effects of selective attention on ERPs to standard tones were isolated as negative difference waves (Nds) by substracting ERPs to non-attended stimuli from ERPs to the same signals when attended.
  • (9) Standardization of the results was obtained by pair-wise substraction, log RFPi-log RFSTi.
  • (10) Of these, 95 (89%) exhibited a minimal degree of geometric distortion and could be successfully substracted.
  • (11) "Ischemia" of a slice was achieved by substracting both glucose and oxygen from the perfusing medium.
  • (12) Diagnostics (perfusion scintigraphy with Tc-DTPA, digital substraction angiography) demonstrated hypoperfusion of the graft, caused by a steal syndrome due to the A-V fistula in the groin.
  • (13) Binding of synthetic substracts, such as p-nitrophenyl-2-acetamido-4-O-(2-acetamido-2-deoxy-beta-D -glucopyranosyl)-beta-D-glucopyranoside (NAG-Gluc-varphiNO(2)), has also been studied by the magnetic resonance technique described.
  • (14) The substract acetate and ATP could be replaced by propionate and dATP, repectively.
  • (15) In all, photographic substraction, a simple technique, appears to be of value in gastrointestinal angiography essentially in the arteriographic study of the pancreas and of spleno-portal and mesenterico-portal venous return.
  • (16) Hemofiltration is a method suitable for rapid substraction of plasma water that generally allows reduction of circulating levels of norepinephrine.
  • (17) Remember that the oclusal adjustment is an irreversible media of dental structures substraction that can be made as a unique type of treatment before the operative dentistry and prostodontics.
  • (18) Imaging procedures were mainly real-time ultrasonography and thallium-technetium substraction scintigraphy with sensitivities of 50.8% and 46.7% and specificities of 86.3 and 76.3% respectively.
  • (19) Cutting scores differentiating normal from pathological performance were determined substracting 2 standard deviations from the means of normals subjects subdivided into four educational groups.
  • (20) On the basis of a comparative study of 100 angiograms, the authors stress the value of photographic substraction in gastrointestinal angiography.

Subtract


Definition:

  • (v. t.) To withdraw, or take away, as a part from the whole; to deduct; as, subtract 5 from 9, and the remainder is 4.

Example Sentences:

  • (1) Thus, 10 degrees should be subtracted from the ultrasound values in order to obtain the real AV angles.
  • (2) The signals were processed digitally using three different algorithms: 1) simple linear regression (LR); 2) linear regression with drift correction achieved by adding to, or subtracting from the plethysmographic signal a term proportional to time (LRC); 3) Fourier analysis (FFT).
  • (3) During bilateral displacements, the activity induced by the respective contralateral leg is linearly summed or subtracted, depending on whether the legs are displaced in the same or in opposite directions.
  • (4) All MR images were compared with findings of chest X-ray, CT and IVDSA (intravenous digital subtraction angiography) as appropriate.
  • (5) Binaural difference waves (BDWs), obtained by subtracting the sum of two monaural BAEPs from a binaural BAEP, were obtained in 16- to 20-day-old jaundiced Gunn rats before and after injection of sulfadimethoxine, which produces bilirubin neurotoxicity by promoting net transfer of bilirubin out of the circulation into brain tissue.
  • (6) Aggressive responding was maintained by contingent presentation of periods free of point subtractions, i.e., provocations.
  • (7) The diagnosis of this rare anomaly was facilitated by the use of digital subtraction aortography and allowed selective angiography of the artery with an appropriately shaped catheter.
  • (8) Intraarterial digital subtraction angiography (DSA) was performed to evaluate graft patency in 45 patients undergoing coronary artery bypass grafting with the use of internal mammary artery (IMA).
  • (9) We studied how much blue, green, or red light had to be added to or subtracted from white to obtain veridical hue perception (blue, green, red, or their complementary colours) at various locations in the temporal visual field.
  • (10) For each patient, the BSM and the QRS integral map before, during, and after the inflation was compared by subtraction of recordings "during-minus-before" inflation and "before-minus-after" inflation.
  • (11) Aneurysm of the hepatic artery, causing obstruction of the common bile duct, was definitely diagnosed preoperatively by subtraction angiography, combined with percutaneous transhepatic cholangiography.
  • (12) One problem required addition; the other subtraction.
  • (13) Eight complementary DNA (cDNA) clones highly expressed in fetal rat stomach but not in normal adult rat stomach were isolated after screening 2 x 10(4) independent recombinants from a subtracted cDNA library.
  • (14) In nine cases, MR angiographic findings were verified with digital subtraction angiography or conventional angiography.
  • (15) The various definitions of "efficiency" and "economy" are considered at the whole body and the isolated muscle level, and a discussion of baseline subtraction is presented.
  • (16) The voltage-dependent Na+, K+ and Ca2+ currents (INa, IK and ICa) were separated by the use of ion subtraction and pharmacological treatments.
  • (17) They could be improved by subtraction of the vascular images obtained after injection of 99m-technetium serum albumin.
  • (18) Single digital subtraction angiography showed bilateral occlusion, predominantly on the left side of the supraclinoid portion of the interna carotid arteries with formation of collateral circulation in the diencephalic territory.
  • (19) In this pilot study, a blood pool subtraction technique, which makes it possible to visualize MI 6 h postinjection, is validated.
  • (20) To determine the optimal time for recording left ventricular angiograms during atrial pacing stress tests, digital subtraction left ventriculograms were obtained using 12 ml of contrast material in 40 patients at rest and at peak pacing.

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