Biomedical subjects
J D PERRINGS
Publications and source records attributed to J D PERRINGS.
Mechanical bottle washer and filler.
Explore the source record for details and available documents.
Preliminary data on neutron and gamma depth dose relations with fission neutrons using a plastic man phantom.
Explore the source record for details and available documents.
Isolation and physical characterization of sodium deoxyribonucleate from pneumococcus type III.
Explore the source record for details and available documents.
Sedimentation and viscosity studies on the capsular and somatic polysaccharides of pneumococcus Type III.
Sedimentation constants at infinite dilution have been found to be 1.89 and 4.06 for the somatic and capsular polysaccharides, respectively, from pneumococcus Type III. Intrinsic viscosities have been determined for the somatic and capsular polysaccharides of pneumococcus Type III using the Ostwald viscometer. Molecular weights and dimensions have been calculated for the somatic and capsular polysaccharides of pneumococcus Type III assuming the molecules to be prolate ellipsoids of revolution. Values for the somatic polysaccharide are: molecular weight, 26,400; diameter, 0.97 mmicro; and length, 36.18 mmicro. Values for the capsular polysaccharide are: molecular weight, 171,800; diameter, 1.04 mmicro; and length, 177.87 mmicro. The molecular weights were calculated for the somatic and capsular polysaccharides of pneumococcus Type III assuming the molecules to be flexible chains. The value of the molecular weight of the somatic polysaccharide is 31,500 and the value for the molecular weight of the capsular polysaccharide is 267,500. The molecules of both the somatic and capsular polysaccharides exhibit high degrees of asymmetry.
Physicochemical effects of radiation. II. Effect of x-rays on thymus sodium desoxyribonucleate as revealed by sedimentation and viscosity.
Explore the source record for details and available documents.
Physico-chemical effects of radiation. I. Effect of x-rays on fibrinogen as revealed by the ultra-centrifuge and viscosity.
Explore the source record for details and available documents.
Revised sedimentation constants for fibrinogen determined at various temperatures and speeds of rotation.
Explore the source record for details and available documents.
Studies on the nucleoproteins and nucleic acids from pneumococcus type VI.
Explore the source record for details and available documents.
Critical ultracentrifugal and viscosity studies on bovine fibrinogen.
Explore the source record for details and available documents.
Critical sedimentation and viscosity studies on crystalline bovine plasma albumin.
Explore the source record for details and available documents.