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In this article, we provide a brief history of the Cyber Defense Exercise (CDX), describe Air Force Institute of Technology (AFIT's) participation in it, and explain how the experience shaped the information-assurance curriculum and course format at AFIT. The CDX is an annual competition designed to give students the opportunity to learn and demonstrate best practices in defensive information assurance. The CDX's fundamental objective is to design and implement a network that provides specified IT services and defend it against an onslaught of cyberattacks and natural events. CDX participants included blue forces (students), red forces (attacker) and a white cell. [ABSTRACT FROM PUBLISHER]

Measurements of $g_1$ at low x and low $Q^2$ are expected to provide a sensitive probe of the transition from Regge to perturbative QCD dynamics, offering a new testing ground for models of small x physics. We discuss the potential of polarized ep colliders (Polarized HERA and eRHIC) to investigate this physics – varying $Q^2$ between 0.01 and 1 GeV $^2$– and to constrain the high-energy part of the Drell-Hearn-Gerasimov sum-rule for polarized photoproduction. [ABSTRACT FROM AUTHOR]

We review the theory and present status of the proton spin problem with emphasis on the transition between current quarks and constituent quarks in QCD. [ABSTRACT FROM AUTHOR]

We analyse the low x, low Q2 polarised photoabsorption data from SLAC and use this data to make a first estimate of the high-energy part of the Drell-Hearn-Gerasimov sum-rule. The present status of spin dependent Regge theory is discussed. [ABSTRACT FROM AUTHOR]