What's the difference between ab and about?

Ab


Definition:

  • (n.) The fifth month of the Jewish year according to the ecclesiastical reckoning, the eleventh by the civil computation, coinciding nearly with August.

Example Sentences:

  • (1) In the measurement, enzyme-labeled and unlabeled antigens (Ag* and Ag) were allowed to compete in binding to the antibody (Ab) under conditions where Ag* much less than Ab much less than Ag.
  • (2) Most cis AB sera have anti-B activity, essentially at 4 degrees C. In saliva A and H substances are found in normal amounts but B substance is only evidenced by inhibition of autologous cells agglutination.
  • (3) Comparison with 99Tc-pyrophosphate uptake in infarcted dog heart, induced by selective obstruction of a coronary artery, suggest that the 111In-labelled F(ab')2 localizes specifically in infarcted myocardium only.
  • (4) Bivalent F(ab')(2) also retains its insulin-like effects.
  • (5) F(ab')2 fragment of IgG prepared from pooled immune sera was administered intravenously without side effects.
  • (6) F(ab')2 anti-Ig stimulates the rapid breakdown of inositol phospholipids in B cells, resulting in the prolonged release of inositol (poly)phosphates and diacylglycerol.
  • (7) A possible role for Id for IgM Ab as cardinal autoantigens is discussed.
  • (8) Radiation-dose predictions derived from biodistribution studies indicate that a higher tumor dose may be delivered using the SA method than with either 131I-NP-4 IgG or F(ab')2 alone.
  • (9) In positive patterning, elemental stimuli, A and B, were presented without an unconditioned stimulus while their compound, AB, was paired with electric shock.
  • (10) In the present study, the role of antiperipheral nerve myelin antibody (anti-PNM Ab) in demyelination by generating the terminal attack complex (C5b-9) of complement was explored in patients with Guillain-BarrĂ© syndrome (GBS) and other demyelinating neuropathies.
  • (11) In all cases strong reactivity was observed with anti-p23,30 and anti-F(ab')2, but no reactivity with anti-311.
  • (12) The energy required for perforation from the external surface to the anterior chamber was the same as the energy required for ab interno perforation.
  • (13) The exposure rate for both cirrhosis cases with hepatoma and cirrhosis cases without hepatoma was the same (48%), but about 80% of each exposed group were either HB Ag or HB Ab positive.
  • (14) To dissect the epitope specificity of the group-specific neutralizing antibodies, CD4 attachment site-specific antibodies (CD4-site Abs) were isolated from total anti-gp120 Abs by using a CD4-blocked gp120SF2-Sepharose column.
  • (15) An algorithm for the treatment of cryptococcosis complicating AIDS may shorten the duration of primary intravenous AB therapy.
  • (16) Recently, the assay system of anti-hepatitis C virus antibody (HCV-Ab) was developed.
  • (17) Skin affected by a burn cancer is scarred, ulcerated, and often appears as erythema ab igne clinically in adjacent skin.
  • (18) These preliminary results suggest that finger stick blood samples, collected on filter paper, could be used for FTA-ABS testing of remote rural populations--such as in areas where yaws is endemic.
  • (19) The dynamics of distribution of radiolabelled F(ab')2 fragments of a monoclonal anti-CEA antibody have been studied in the nude mouse bearing a CEA-producing human colon carcinoma.
  • (20) AB InBev has cut costs ruthlessly as it has bought up companies around the world, including Anheuser-Busch, the brewer of US beer Budweiser.

About


Definition:

  • (prep.) Around; all round; on every side of.
  • (prep.) In the immediate neighborhood of; in contiguity or proximity to; near, as to place; by or on (one's person).
  • (prep.) Over or upon different parts of; through or over in various directions; here and there in; to and fro in; throughout.
  • (prep.) Near; not far from; -- determining approximately time, size, quantity.
  • (prep.) In concern with; engaged in; intent on.
  • (prep.) On the point or verge of; going; in act of.
  • (prep.) Concerning; with regard to; on account of; touching.
  • (adv.) On all sides; around.
  • (adv.) In circuit; circularly; by a circuitous way; around the outside; as, a mile about, and a third of a mile across.
  • (adv.) Here and there; around; in one place and another.
  • (adv.) Nearly; approximately; with close correspondence, in quality, manner, degree, etc.; as, about as cold; about as high; -- also of quantity, number, time.
  • (adv.) To a reserved position; half round; in the opposite direction; on the opposite tack; as, to face about; to turn one's self about.

Example Sentences: