MPaLe. FUDLICaATIVCL VOR 12700 P ‘47/1 Document Type: Journal Article Language: English Journal Announcement: EDB8701 ERA (Energy Research Abstracts); Subfile: (National Library of Medicine) INS (US Atomindex input). NLM Country of Origin: United States Abstract: At least one serologic marker of prior hepatitis B infection (hepatitis B surface antigen, antibody to surface antigen, or antibody to core antigen) was found in 91.7% of 314 Marshallese tested. The prevalence of hepatitis B surface antigenemia (3.3%) in a subpopulation that had resided on Rongelap Atoll at the time of accidental exposure to radioactive fallout from a thermonuclear test in 1954 did not differ Significantly from the prevalence in a selected unexposed population (10.5%). Major Descriptors: *HEPATITIS -- IMMUNE REACTIONS; *HUMAN POPULATIONS -- DELAYED RADIATION EFFECTS; *HUMAN POPULATIONS -- IMMUNOLOGY Descriptors: ANTIBODIES; ANTIGENS; BLOOD SERUM; FALLOUT; MARSHALL ISLANDS; RADIATION INJURIES; THERMONUCLEAR EXPLOSIONS Broader Terms: aBIOLOGICAL EFFECTS; BIOLOGICAL RADIATION EFFECTS; DIGESTIVE SYSTEM DISEASES; DISEASES; EXPLOSIONS; INJURIES; ISLANDS; MICRONESIA; NUCLEAR EXPLOSIONS; OCEANIA; POPULATIONS; RADIATION EFFECTS Subject Categories: 560151* -- Radiation Effects on Animals -- Man 560161 -- Radionuclide Effects, Kinetics, & Toxicology -- Man INIS Subject Categories: C1500* -- Effects of External Radiation on Man C2110 -- Radioisotope effects, kinetics & toxicology in man 10/5/479 01897136 Author(s): (Item 179 from file: 103) BRA-12-012225; EDB-87-024784 Felty, J.R. Title: Numerical method for unfolding the stabilized nuclear-cloud particle distribution. Master’s thesis Corporate Source: (USA). School Air Force Inst. of Engineering Publication Date: Mar 1986 Report Number(s): p 130 AD-A-172960/7/XAB; Document Type: Report Language: English Journal Announcement: EDB8701 Availability: NTIS, PC AO7/MF AO0Ql. Subfile: BRA of Tech., Wright-Patterson AFB, OH AFIT/GNE/PH-86M-4 (Energy Research Abstracts). GRA (NTIS NTS) Country of Origin: United States Country of Publication: United States Abstract: A numerical unfolding of particle-size distribution from reduced airborne filter sample data is developed. First, stabilized nuclear cloud is modeled using a trial particle-size distribution that is positioned in the atmosphere by empirical relationships. Then Davies-McDonald fall mechanics are used to model the falling particles in the cloud. The amount of mass at each sample altitude at each sample time is calculated from the cloud model and compared to the amount of mass found in actual cloud samples. When the calculated masses equal the actual masses, the particle distribution used to construct the stabilized cloud is the correct one. A computer code for this numerical analysis is tested using hypothetical filter sample data constructed from a known particle-size distribution. An input parameter sensitivity analysis is also conducted. Actual nuclear cloud sample data from the Redwing series ZUNI shot is analyzed using this numerical method of airborne nuclear cloud sample analysis. The outcome of the ZUNI sample analysis is somewhat inconclusive in that it does not pinpoint a distribution. However, results of the model sensitivity analysis indicate that the particle size distribution of the stabilized ZUNI cloud may be lognormal with a log-slope between 2.9 and 3.9. Major Descriptors: *NUCLEAR EXPLOSIONS -- FALLOUT; *NUCLEAR EXPLOSIONS -RADIOACTIVE CLOUDS; *RADIOACTIVE CLOUDS -- PARTICLE SIZE; *REDWING PROJECT -- RADIOACTIVE CLOUDS sgq3ts