AST

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AST

(company)
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AST

(1) (Abstract Syntax Tree) The original source code format of the low-level WebAssembly language for the Web. See WebAssembly.

(2) (AST Computer, Irvine, CA) A PC manufacturer founded in 1980 by Albert Wong, Safi Quershey and Tom Yuen (A, S and T). AST was initially known for its line of add-in PC memory boards (Rampage and SixPak Plus brands) but also offered a line of PCs sold through its dealer channel. In 1993, AST acquired Tandy Corporation's PC manufacturing facilities. In 1997, the parent company AST Research, Inc. was taken over by Samsung, which struggled to compete with Gateway, Dell and Compaq. In January 1999, Beny Alagem, co-founder of Packard Bell, purchased the AST name and intellectual property rights for a new venture. However, within a year, the once-illustrious brand ceased production altogether.
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References in periodicals archive ?
The present descriptive comparative study revealed significantly lower aspartate aminotransferase and alanine aminotransferase levels in haemodialysed CKD patients compared to both healthy controls and pre-dialysed CKD patients.
Multiple linear regression analysis was used with serum bilirubin as an objective variable and age, sex, disease duration, medication history, diabetes mellitus, hypertension, alanine aminotransferase, aspartate aminotransferase, TP, CRP, and ESR as explanatory variables, indicating that serum bilirubin was correlated with ESR (b = -0.170, P < .001) independently of other parameters in multiple linear regression analysis (Table 3).
HCV: hepatitis C virus; AST: aspartate aminotransferase; ALT: alanine aminotransferase; AAR: aspartate aminotransferase to alanine aminotransferase ratio; PT: prothrombin time; INR: international normalized ratio; RDW: red cell distribution width; APRI: aspartate aminotransferase-to-platelet ratio index; FIB-4: fibrosis index based on the 4 factors; RPR: red cell distribution width to platelet ratio; PLR: platelet-lymphocyte ratio.
Table 1 : Trend of liver function tests Investigation Day 1 Day 2 Day 3 Day 4 (Post Surgery) Serum bilirubin 7.08 mg/dL 6.23 5.73 2.37 Conjugated bilirubin 6.52 mg/dL 5.06 4.48 4.87 AST 1830 IU/L 2630 1290 370 ALT 2510 IU/L 1900 1260 930 INR 1.2 1.2 1.0 1.0 Investigation Day 6 Day 8 Day 10 Serum bilirubin 8.57 8.32 5.4 Conjugated bilirubin 7.00 7.01 4.3 AST 180 180 120 ALT 340 270 160 INR 1.0 AST, Aspartate aminotransferase; ALT, alanine aminotransferase, INR, International Normalization Ratio.
Plasma enzyme activities of alanine aminotransferase and aspartate aminotransferase were determined using commercial kits (Zhongsheng Bio-Technology and Science Inc., Beijing, China) on a random access analyzer (Technicon RA 1000, Tarrytown, NY, USA).
The increase in the kidney aspartate aminotransferase activity as the concentrations of the plant leaf dust increased may be attributed to the potency of the plant leaf dust; as the enzyme is specific in kidney function (Witthawaskul et al., 2003).
Table I.- Effect of acute doses of cypermethrin administered at 7.5 g/L for 9 days on the activities (MeanSD) of glutamate dehydrodegase (GDH M formozan/mg protein/h) aspartate aminotransferase (ASAT M oxaloacetate/mg protein/h) and alanine aminotransferase (ALAT M pyruvate/mg protein/h) of gill muscles and liver of a freshwater fish Cyprinus carpio.
The aspartate aminotransferase to platelet ratio index before treatment was 1.61 +- 1.00 and after treatment 1.10 +- 1.08.
No pattern between years, sexes, or ages was apparent for plasma aspartate aminotransferase, calcium, creatine kinase, lactate dehydrogenase, total protein, and triglycerides (Table 1).
Aspartate aminotransferase increase in crevicular fluid during experimental periodontitis in beagle dogs.
Serum total cholesterol, triglycerides, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were determined.
Levels of aspartate aminotransferase ( AST) 54 to 60 per cent higher than the controls, indicting damage to the liver or heart