56 research outputs found
Life-Cycle Management of Ammunition: Safety, Security, and Sustainability
Ammunition is an essential resource for the implementation of a national defense and security policy. National ammunition stockpiles—regardless of their functional classification—can pose risks to national security and public safety. Poor accounting and inadequate physical security of storage facilities can lead to the diversion of ammunition from the national stockpile to terrorists, criminals, and other armed groups, increasing insecurity and instability. Furthermore, the deterioration of munition components can contribute to unplanned explosions at munitions sites (UEMS), which can have significant negative socioeconomic and political consequences for the public and national governments. Comprehensive ammunition management ensures that the right types and quantities of ammunition are available, at the right time, to support national strategic and operational needs. It is also seen as the only long-term strategy for preventing the excessive accumulation of surplus and for mitigating the safety and security risks inherent to all ammunition stockpiles. Such an approach takes into account the technical aspects of ammunition management that are often covered by stockpile management efforts, as well as the related structural and political dynamics. This results in planning challenges and has significant budgetary implications for governments. A systems-based approach to the life-cycle management of ammunition (LCMA), and a long-term strategy to execute it, can help a state to address these challenges by minimizing the probability of excessive surplus accumulation and mitigating diversion and UEMS risks while meeting national strategic and operational needs
Population Mobility, Globalization, and Antimicrobial Drug Resistance
Human travel contributes to antimicrobial drug resistance around the world
2015 Infectious Diseases Society of America (IDSA) Clinical Practice Guidelines for the Diagnosis and Treatment of Native Vertebral Osteomyelitis in Adultsa
These guidelines are intended for use by infectious disease specialists, orthopedic surgeons, neurosurgeons, radiologists, and other healthcare professionals who care for patients with native vertebral osteomyelitis (NVO). They include evidence and opinion-based recommendations for the diagnosis and management of patients with NVO treated with antimicrobial therapy, with or without surgical interventio
Multi-Jet Event Rates in Deep Inelastic Scattering and Determination of the Strong Coupling Constant
Jet event rates in deep inelastic ep scattering at HERA are investigated
applying the modified JADE jet algorithm. The analysis uses data taken with the
H1 detector in 1994 and 1995. The data are corrected for detector and
hadronization effects and then compared with perturbative QCD predictions using
next-to-leading order calculations. The strong coupling constant alpha_S(M_Z^2)
is determined evaluating the jet event rates. Values of alpha_S(Q^2) are
extracted in four different bins of the negative squared momentum
transfer~\qq in the range from 40 GeV2 to 4000 GeV2. A combined fit of the
renormalization group equation to these several alpha_S(Q^2) values results in
alpha_S(M_Z^2) = 0.117+-0.003(stat)+0.009-0.013(syst)+0.006(jet algorithm).Comment: 17 pages, 4 figures, 3 tables, this version to appear in Eur. Phys.
J.; it replaces first posted hep-ex/9807019 which had incorrect figure 4
Measurement of Leading Proton and Neutron Production in Deep Inelastic Scattering at HERA
Deep--inelastic scattering events with a leading baryon have been detected by
the H1 experiment at HERA using a forward proton spectrometer and a forward
neutron calorimeter. Semi--inclusive cross sections have been measured in the
kinematic region 2 <= Q^2 <= 50 GeV^2, 6.10^-5 <= x <= 6.10^-3 and baryon p_T
<= MeV, for events with a final state proton with energy 580 <= E' <= 740 GeV,
or a neutron with energy E' >= 160 GeV. The measurements are used to test
production models and factorization hypotheses. A Regge model of leading baryon
production which consists of pion, pomeron and secondary reggeon exchanges
gives an acceptable description of both semi-inclusive cross sections in the
region 0.7 <= E'/E_p <= 0.9, where E_p is the proton beam energy. The leading
neutron data are used to estimate for the first time the structure function of
the pion at small Bjorken--x.Comment: 30 pages, 9 figures, 2 tables, submitted to Eur. Phys.
Career plans of primary care midwives in the Netherlands and their intentions to leave the current job
Salmon, Patrick and Tony Barrow (eds.): "Britain and the Baltic. Studies in Commercial, Political and Cultural Relations 1500–2000"
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