The heat stability of synthetic and natural pyridoxal.
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Animals↗
Biomedical subjects
R E Davis
Publications and source records attributed to R E Davis.
Family of physically disabled child. Family reactions and deductive reasoning.
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Age Factors↗
Pyridoxal, vitamin B12 and folate metabolism in women taking oral contraceptive agents.
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Adult↗
Pyridoxal and folate deficiency in alcoholics.
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Adult↗
A survey of imported malaria in Western Australia including four cases of drug resistance.
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Adolescent↗
Sex differences in aggressivity and the effects of social isolation in the anabantoid fish, Macropodus opercularis.
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Aggression↗
Sexual behavior: social and ecological influences in the Anabantoid fish, Trichogaster trichopterus.
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Animals↗
Letter: Heat stability of synthetic and natural pyridoxal.
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Drug Stability↗
Letter: The heat stability of synthetic and natural pyridoxal.
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Drug Stability↗
Hematological, vitamin B 12, and folate studies on Seventh-day Adventist vegetarians.
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Adult↗
Trimethoprim-sulphamethoxazole effect on folate metabolism.
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Adolescent↗
X-ray determination of the absolute stereochemistry of the initial oxidation product formed from toluene by Pseudomonas puida 39-D.
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Oxidation-Reduction↗
Automated blood counts.
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Blood Cell Count↗
Pyridoxine and depression associated with oral contraception.
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Adult↗
Congenital malformations and anticonvulsant drugs.
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Abnormalities, Drug-Induced↗
Transient electrocardiographic changes of left atrial hypertrophy following successful cardioversion for atrial fibrillation.
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Adult↗
An automated method for the microbiological assay of serum pyridoxal.
A fully automated method for the measurement of serum pyridoxal has been developed. Acid phosphatase was used for dephosphorylation and precipitation of the serum proteins was not required. A chloramphenicol-resistant strain of L. casei was used as the test organism and this removed the need for sterilization. The method gives highly reproducible results, and is suitable for population and institutional studies.
Acid Phosphatase↗
An automated microbiological method for the measurement of vitamin B12.
An automated method for the microbiological assay of vitamin B(12) is described. A chloramphenicol-resistant strain of Lactobacillus leichmannii is used as the test organism and this eliminates the need for sterilization or aseptic addition. Precipitation of the serum protein is avoided by dilution of the serum with a glutamic/malic acid solution before heating the preparation to free the vitamin B(12). Tests can be set up at a rate of 80 an hour and after incubation they can be read at 160 an hour. By interfacing a programmed electronic calculator directly with the Mecolab M which is used for the assays, results are printed directly in ng/l.
Autoanalysis↗