M any particles found in the environment, such as those from diesel engine exhaust, fly ash from coal-burning power plants, fallout from nuclear weapons testing and natural dusts may be relatively insoluble in body fluids. A toxic material may be associated primarily with the surface of these particles or may be homogeneously or heterogeneously distributed throughout the mass of the particles. ...

Objective: To determine the frequency of underlying causes of pyrexia of unknown origin on bone marrow examination. Study Design: Descriptive study. Place and Duration of Study: The study was carried out at Hematology department (pathology) of Army Medical College, National University of Sciences and Technology (NUST) and Military Hospital Rawalpindi (during the period of one year) from Jan 201...

Chemistry and kinetics of air reactions with plutonium monoxide monohydride (PuOH) and with mixtures of the oxide hydride and plutonium metal are defined by results of pressure-volumetemperature (PVT) measurements. Tests with specimens prepared by total and partial corrosion of plutonium in 0.05 M sodium chloride solution show that reaction of residual water continues to generate H, after liqui...

27Al nuclear magnetic resonance and relaxation in U I ~ P U ~ A ~ Z is discussed in terms of the formation of virtual bound 5 f states on the Pu ions. Magnetic order is found for X = 0.3 at about 5 O K . The 5 f electron elements U, Np, Pu, etc., form an interesting class of alloys and intermetallic compounds. Whereas the pure metals do not appear to have localized magnetic moments nor magnetic...

Objective: To see the usefulness of liver biopsy in the diagnosis and to document the spectrum of paediatric liver diseases. Methods: A retrospective, cross sectional survey at Histopathology department of Army Medical College Rawalpindi from January 2000 to December 2003. The liver biopsies were taken with Menghini needle. The fixed tissues were processed under standard conditions. Results: Du...

— The electronic structure of actinide monoxides AcO and dioxides Ac02 , where Ac = Th, U, Np, Pu, Am, Cm and Bk has been studied by molecular cluster methods based on the first-principles one-electron local density theory. Molecular orbitals for nearest neighbour clusters Ac06 and AcOs representative of monoxide and dioxide lattices were obtained using non-relativistic spin-restricted and spin...

In May 1975 Los Alamos Scientific Laboratory issued a preliminai.. report on a study of Fast Reactor Safety Test Facilities. The study addressed itself to three closely related tasks. 1. A review of the current understanding of fast reactor safety with the aim of identifying important areas of uncertainty which cannot be adequately resolved using analysis, out of pile and/or existing in-pile fa...

The content of Boscovich’s Theoria philosophiae naturalis was well-known to his contemporaries, but both scientists and philosophers chiefly discussed it during the 19 century. The observations that Boscovich presented in this text, and that he himself defined as “philosophicas metitationes”, soon showed their being a good programme for the forthcoming atomic physics, and contributed to get rid...