The importance of satisfying the availability of service and its data is becoming the most critical factor which decides the successfulness of the Internet-based services and applications. In this work, we take the availability issue into account as a QoS focus, and evaluate the achieved quality of a service by answering the question 'how much the service satisfies the required availability?'. ...

The 250 kW TRIGA Mark II research reactor, Vienna, operates since 7 March 1962. The initial criticality was achieved with the first core loading of 57 fuel elements (FE) of same type (Aluminium clad fuel with 20% enrichment). Later on due to fuel consumption SST clad 20% enriched FE (s) have been added to compensate the reactor core burn-up. In 1975 high enriched (HEU) TRIGA fuel (FLIP fuel = F...

Human immunodeficiency virus (HIV) infection and in utero exposure increase the risk of neurocognitive deficits, but comprehensive screening is unavailable settings with high HIV prevalence (e.g., Sub-Saharan Africa). The Penn Computerized Neurocognitive Battery (PennCNB) was culturally adapted translated for use among children adolescents Botswana. To prepare implementation process, this study...

One of the requirements of a future Fissile Material Cutoff Treaty is that fissile material used in naval reactor fuel must not be diverted for weapons purposes. This could become relevant for both weapon and non-weapon states of the NPT because, in both cases, the geometry of the fuel and core may be considered sensitive information. Inspections and measurements would therefore have to rely on...

Todd Perry is Washington Representative for Arms Control and International Security for the Union of Concerned Scientists, and a Ph.D. candidate in the Department of Government and Politics at the University of Maryland. Economic conditions in Russia in the wake of the August 17, 1998 devaluation of the Russian ruble have substantially increased the risk of theft at the dozens of former Soviet ...

By L. JUDEN REED, THOMAS B. BRADLEY, JR. AND HEu N M. RANNEY F ETAL HEMOGLOBIN, a tetramer of 2a and 2y polypeptide chains, constitutes the major hemoglobin component in newborn infants. During the first 6 months of extra-uterine life, the synthesis of y chains declines as chain synthesis increases. Adult Hb A, a tetramer of 2a and 2$ polypeptide chain accounts for over 95 per cent of the hemog...

Multistage interconnection networks (MINs) are popular in switching and communication applications and have been used in tele-communication and parallel computing systems for many years. Crosstalk a major problem introduced by an optical MIN, is caused by coupling two signals within a switching element. We focus on an efficient solution to avoiding crosstalk by routing traffic through an NϫN op...

I am so honored to serve as SNMMI’s 2016–2017 president. Seeing all the exciting research presented at the society’s Annual Meeting in San Diego, CA, has certainly energized me for the year ahead. I am indeed fortunate to be following Dr. Hossein Jadvar as president. Thanks to his leadership, the Therapy Center of Excellence (CoE) was established to support the development and utilization of ta...