2,666 research outputs found

    Homeland security and emergency management education: an investigation into workforce needs

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    Thesis (Ph.D.) University of Alaska Fairbanks, 2017The U.S. Department of Homeland Security (DHS) was created in the wake of the September 11th 2001 terrorist events. DHS's formation, the largest reorganization of a governmental agency in over 50 years, brought a new emphasis on the protection of the nation, its citizens and its infrastructure to government emergency management policy. Previously, the locus of emergency management had lain with the Federal Emergency Management Agency (FEMA), which had strongly emphasized natural disaster response. The rise of FEMA and DHS were only the latest iterations in a long history of policy shifts in this space driven by the perceived threats and prevailing political dynamics of the day. Arguably, the complex and intertwined nature of contemporary hazards calls for a dual emphasis in the homeland security and emergency management (HSEM) enterprise; that is, awareness and capabilities that span both fields. As applied disciplines, scholarship in homeland security and emergency management has always had strong links to the evolving practice of the HSEM enterprise. In addition to providing research to guide practice, baccalaureate programs in both homeland security and emergency management have emerged to address the operational and educational capabilities required by practitioners. In the post-9/11 environment, the increasingly complex demands placed upon our homeland security and emergency management enterprise require a better-integrated education. This study serves to demonstrate consensus regarding the significance of an integrated curricula in homeland security and emergency management meeting the needs of the workforce

    Using The Balanced Scorecard To Reform University Policing: An Illustrative Example

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    Since the death of George Floyd, protestors nationwide have called for police reform, including on college campuses. This paper provides an illustrative example of how a balanced scorecard approach was utilized in the strategic reform of a campus police department. The study highlights how decision-makers can integrate the balanced scorecard’s use to successfully reform the campus police department and to create buy-in throughout the process

    Exploring a nexus of national and human security: food and energy challenges in the U.S. Arctic

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    Changes in the U.S. Arctic are challenging both the national and human security dynamics of the region. Historically, the region’s significance had been defined by national security concerns, but the emerging concept of human security has come to provide a useful framework through which to define and demonstrate the nexus between the two. This paper provides an overview of the relationship between national and human security and the concerns shared by individuals working in both areas, with a more narrowed focus on the interrelated issues of both food and energy security within the U.S. Arctic. Considering the substantial overlap of aspects of food and energy on both national as well as human security, an analysis of the relationships involving each provides meaningful and extended context of the term "security" for the Arctic region

    Exploring a Nexus of National and Human Security: Food and Energy Challenges in the U.S. Arctic

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    Changes in the U.S. Arctic are challenging both the national and human security dynamics of the region. Historically, the region‚Äôs significance had been defined by national security concerns, but the emerging concept of human security has come to provide a useful framework through which to define and demonstrate the nexus between the two. This paper provides an overview of the relationship between national and human security and the concerns shared by individuals working in both areas, with a more narrowed focus on the interrelated issues of both food and energy security within the U.S. Arctic. Considering the substantial overlap of aspects of food and energy on both national as well as human security, an analysis of the relationships involving each provides meaningful and extended context of the term ‚Äúsecurity‚ÄĚ for the Arctic region

    Embedding Meteorologists and Hydrologists into Emergency Operations

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    The article record may be found at https://www.hsaj.org/articles/21125As alert systems have evolved over the years, it has served to enhance timely coordination between emergency managers and meteorologists.Sponsored the U. S. Department of Homeland Security’s National Preparedness Directorate, FEMA, CHDS is part of the Naval Postgraduate School (NPS)

    Light Propagation in a Background Field for Time-Space Noncommutativity and Axionic Noncommutative QED

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    We study the low-energy effects of space-time non-commutativity on light propagation in a background electromagnetic field. Contrary to some of the previous claims, we find no polarization rotation for vanishing time-space commutator [x^i,x^0]=0[\hat{x}^i,\hat{x}^0]= 0, although dispersion relation is modified, allowing for propagation faster than the vacuum speed of light. For non-zero [x^i,x^0][\hat{x}^i,\hat{x}^0], as allowed with a proper quantization, a naive rotation effect is found to be actually absent when physical fields are defined through Seiberg-Witten map. We also consider non-commutative QED weakly coupled to small mass particles such as axions. Non-commutativity is found to dominate the inverse oscillation length, compared to axion mass and QED effects, for mixing particle masses smaller than 10‚ąí12eV10^{-12} eV. Conventional constraints on axion coupling based on photon-axion transition rates are unmodified, however induced ellipticity is proportional to the non-commutativity squared length scale. This last effect is found to be too small to account for the ellipticity reported by the PVLAS experiment, yet unexplained by conventional QED or axion physics.Comment: 15 pages. References adde

    T-infinity: The Dependency Inversion Principle for Rapid and Sustainable Multidisciplinary Software Development

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    The CFD Vision 2030 Study recommends that, NASA should develop and maintain an integrated simulation and software development infrastructure to enable rapid CFD technology maturation.... [S]oftware standards and interfaces must be emphasized and supported whenever possible, and open source models for noncritical technology components should be adopted. The current paper presents an approach to an open source development architecture, named T-infinity, for accelerated research in CFD leveraging the Dependency Inversion Principle to realize plugins that communicate through collections of functions without exposing internal data structures. Steady state flow visualization, mesh adaptation, fluid-structure interaction, and overset domain capabilities are demonstrated through compositions of plugins via standardized abstract interfaces without the need for source code dependencies between disciplines. Plugins interact through abstract interfaces thereby avoiding N 2 direct code-to-code data structure coupling where N is the number of codes. This plugin architecture enhances sustainable development by controlling the interaction between components to limit software complexity growth. The use of T-infinity abstract interfaces enables multidisciplinary application developers to leverage legacy applications alongside newly-developed capabilities. While rein, a description of interface details is deferred until the are more thoroughly tested and can be closed to modification

    On a Light Spinless Particle Coupled to Photons

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    A pseudoscalar or scalar particle Ōē\phi that couples to two photons but not to leptons, quarks and nucleons would have effects in most of the experiments searching for axions, since these are based on the aő≥ő≥a \gamma \gamma coupling. We examine the laboratory, astrophysical and cosmological constraints on Ōē\phi and study whether it may constitute a substantial part of the dark matter. We also generalize the Ōē\phi interactions to possess SU(2)√óU(1)SU(2) \times U(1) gauge invariance, and analyze the phenomenological implications.Comment: LaTex, 20p., 6 figures. Changes in sections 4, 5 and figure 2, our bounds are now more stringent. To be published in Physical Review
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