red blood cell membrane are at a slower rate insickle celis t han in normal celis, The alkaline phosphatase in sickle cell anemia significantly higher than that in normal plasma. blasma is Initial studies on phosphate transfer using metabolic inhibitors indicate the abs nee of a certezin enzyme from the sickle cell anemia blood. ‘One of the ficant observations of this group on the problem is that one © pretein components of the plasma has a different mobility as by electrophoresis. This finding is being investigated furth additional electrophoresis eouipment and under varying experi ost signithe termined with ntal con- ditions. This work complements other investigations in which the of hemoglobin in Sickie cells is found to be cifferent from t obin part t+ of nor- mat cells. Shielding Studies. (UNCLASSIFIED) ‘The problem of providil he adequate shielcing for persennel protection in ecuipnent designed for r aGiation sources must be coupled with that of eccnomies in operation. energy ranges, shielding is not an expensive factcr. However in the use of higher intensity radiations, the problem of personnel prote volves Ahigh expenditures, ror lower btion in- This preblem is being investigated finder a econperative project with the Natienal Bureau of Standards to ¢ pterm=ne design factors of various types of equipment: in which savings right be realized, and at the same time tc determine with greater accur Foy the.