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Biomedical subjects

A Sain

Publications and source records attributed to A Sain.

5 recordsLinked to original sources
PubMed1999

Extended self-similarity and dissipation range dynamics of three-dimensional turbulence.

We carry out a self-consistent calculation of the structure functions in the dissipation range using the Navier-Stokes equation. Combining these results with the known structures in the inertial range, we actually propose crossover functions for the structure functions that take one smoothly from the inertial to the dissipation regime. These crossover functions are shown to exhibit extended self-similarity properties consistent with experimental findings.

Journal Article↗
PubMed1979

Erroneous thyroid-stimulating hormone radioimmunoassay results due to interfering antibovine thyroid-stimulating hormone antibodies.

Apparent elevation of serum thyroid-stimulating hormone (TSH) levels was found in a case of a patient receiving adequate replacement therapy after thyroidectomy for a follicular carcinoma. This was an artifact due to interference with the radioimmunoassay by circulating antibovine TSH antibodies. The double-antibody technic showed spuriously elevated levels, and the single-antibody technic showed low levels of serum TSH by radioimmunoassay in the presence of antibodies.

Animals↗
PubMed1978

Hypertrophic Riedel's lobe of the liver.

Riedel's lobe, noted on 99mTc-sulfur colloid liver scintigraphy, was present in 86 (3.3%) of 2604 patients reviewed. Hypertrophied Riedel's lobe was found in 30 cases of which 25 (83%) were females and 5 (17%) were males. Liver scintigraphy will detect the presence of a hypertrophied Riedel's lobe and is recommended in all cases of right sided abdominal masses.

Abdominal Neoplasms↗
PubMed1978

Bone scan in sickle cell crisis.

99mTc-diphosphonate bone scans of 13 patients in acute sickle crisis were analyzed. Twelve of the 13 patients had abnormal scans, with increased activity in joints and skull being a common finding. One patient with splenic calcification and two patients without splenic calcification had splenic uptake of diphosphonate. Most of the abnormal scans showed hot areas, with cold areas seen only in four cases. There was no correlation between the site of pain clinically and the abnormal areas on scanning. The pathophysiology of the abnormal uptake of radioactivity and the role of bone scanning on sickle cell disease are discussed.

Acute Disease↗