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McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


On drawings, abbr. for alternate.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


/awlt/ 1. The alt modifier key on many keyboards, including the IBM PC. On some keyboards and operating systems, (but not the IBM PC) the alt key sets bit 7 of the character generated.

See bucky bits.

2. The "clover" or "Command" key on a Macintosh; use of this term usually reveals that the speaker hacked PCs before coming to the Mac (see also feature key). Some Mac hackers, confusingly, reserve "alt" for the Option key (and it is so labelled on some Mac II keyboards).

3. (Obsolete PDP-10; often "ALT") An alternate name for the ASCII ESC character (Escape, ASCII 27), after the keycap labelling on some older terminals; also "altmode" (/awlt'mohd/). This character was almost never pronounced "escape" on an ITS system, in TECO or under TOPS-10, always alt, as in "Type alt alt to end a TECO command" or "alt-U onto the system" (for "log onto the [ITS] system"). This usage probably arose because alt is easier to say.

4. <messaging> One of the Usenet newsgroup hierarchies. It was founded by John Gilmore and Brian Reid. The alt hierarchy is special in that anyone can create new groups here without going though the normal voting proceduers, hence the regular appearence of new groups with names such as "alt.swedish.chef.bork.bork.bork".
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References in periodicals archive ?
The pathogenesis of decreased aspartate aminotransferase and alanine aminotransferase activity in the plasma of hemodialysis patients: the role of vitamin B6 deficiency.
Mean serum alanine aminotransferase (ALT) values observed in young healthy Pakistani adults is 29.9 8 IU/L, which is lower than normal reference provided at present.
Rapid virological response as a predictor of sustained response in HCV-infected patients with persistently normal alanine aminotransferase levels: A multicenter study.
The fluctuations of viral load and serum alanine aminotransferase levels in chronic hepatitis C.
Serum alanine aminotransferase in skeletal muscle diseases.
Over 50% of those receiving IL-2 experienced grade 3 adverse events including asthenia (weakness), fever, arthralgia (pain in the joints), myalgia (muscle pain) and increased levels of bilirubin, alanine aminotransferase and aspartate aminotransferase.
In response to the dilemmas facing blood banks, the panel recommended nixing a test that measures the activity of the enzyme alanine aminotransferase (ALT) in the blood.
In the RADIANCE Part B trial, the most common adverse reactions that were higher with ozanimod than with interferon beta-1a were upper respiratory tract infections, urinary tract infections, increases of alanine aminotransferase and increases of gamma-glutamyl transferase.
The most common adverse reactions reported in patients treated with ALUNBRIG at the recommended 180 mg dosing regimen were increased aspartate aminotransferase, hyperglycemia, hyperinsulinemia, anemia, increased creatine phosphokinase, nausea, increased lipase, decreased lymphocyte count, increased alanine aminotransferase, diarrhea, increased amylase, fatigue, cough, headache, increased alkaline phosphatase, hypophosphatemia, increased abnormal activated partial thromboplastin time, rash, vomiting, dyspnea, hypertension, decreased blood cell count, myalgia, and peripheral neuropathy.
Mandana Khalili, M.D., from the University of California, San Francisco, and colleagues assessed prevalence of MetS and its influence on alanine aminotransferase (ALT) levels and fibrosis among a multiethnic North American cohort with chronic HBV infection (777 patients).
Alanine aminotransferase (ALT) [2] was 16 U/L initially but decreased until it became undetectable (<6 U/L) on the Architect 16200 (Table 1).