Semantic web learning technology design: addressing pedagogical challenges and precarious futures

Semantic web technologies have the potential to extend and transform teaching and learning, particularly in those educational settings in which learners are encouraged to engage with ‘authentic’ data from multiple sources. In the course of the ‘Ensemble’ project, teachers and learners in different disciplinary contexts in UK Higher Education worked with educational researchers and technologists to explore the potential of such technologies through participatory design and rapid prototyping. These activities exposed some of the barriers to the development and adoption of emergent learning technologies, but also highlighted the wide range of factors, not all of them technological or pedagogical, that might contribute to enthusiasm for and adoption of such technologies. This suggests that the scope and purpose of research and design activities may need to be broadened and the paper concludes with a discussion of how the tradition of operaismo or ‘workers’ enquiry’ may help to frame such activities. This is particularly relevant in a period when the both educational institutions and the working environments for which learners are being prepared are becoming increasingly fractured, and some measure of ‘precarity’ is increasingly the norm

Relevance, Resonance, and Historiography: Interpreting the Lives and Experiences of Civil War Soldiers

Carmichael shares his experiences of portraying Corporal Bobby Fields at Appomattox Court House National Historical Park in the summer of 1985. He uses Fields as a conduit to explore the scholarship pertaining to the common soldier of the Civil War and how material culture can provide a new window into understanding of making the battlefield come alive for visitors

Into the Murky World of Class Consciousness

In a 1975 article on the place of yeomen farmers in a slave society, Eugene D. Genovese identified a critical question concerning the nature of the Old South. The issue, he wrote, is to explain “the degree of class collaboration and social unity” that existed among all whites, which to Genovese appeared “all the more impressive in the face of so many internal strains.” Although some critics mistakenly charged that Genovese argued for non-slaveholder passivity in the face of planter hegemony, he was, in actuality, acknowledging that class relations were permeated with tension and discord, causing bitter resentments that occasionally flared into conflict among white folks. Yet Genovese never found evidence of a populist insurgency against slaveholder authority, a struggle in which the very basis of power was contested. He suggested— what scholars such as Steven Hahn, Lacy Ford, and Stephanie McCurry have more recently developed with amazing sophistication—that an intricate web of political, economic, and cultural relations bound whites together through shared material and ideological interests imbedded in human bondage. [excerpt

The War for the Common Soldier: How Men Thought, Fought, and Survived in Civil War Armies

How did Civil War soldiers endure the brutal and unpredictable existence of army life during the conflict? This question is at the heart of Peter S. Carmichael\u27s sweeping new study of men at war. Based on close examination of the letters and records left behind by individual soldiers from both the North and the South, Carmichael explores the totality of the Civil War experience--the marching, the fighting, the boredom, the idealism, the exhaustion, the punishments, and the frustrations of being away from families who often faced their own dire circumstances. Carmichael focuses not on what soldiers thought but rather how they thought. In doing so, he reveals how, to the shock of most men, well-established notions of duty or disobedience, morality or immorality, loyalty or disloyalty, and bravery or cowardice were blurred by war. Digging deeply into his soldiers\u27 writing, Carmichael resists the idea that there was a common soldier but looks into their own words to find common threads in soldiers\u27 experiences and ways of understanding what was happening around them. In the end, he argues that a pragmatic philosophy of soldiering emerged, guiding members of the rank and file as they struggled to live with the contradictory elements of their violent and volatile world. Soldiering in the Civil War, as Carmichael argues, was never a state of being but a process of becoming.https://cupola.gettysburg.edu/books/1146/thumbnail.jp

Is There a Southern Doctor in the House?

Doctoring the South does not go down easily, but a patient reader will benefit immeasurably from this brilliantly conceived and thoroughly researched book. Stephen Stowe has penetrated the scientific and cultural world of southern physicians during the mid-nineteenth century, showing how white doctors made meaning of their lives as they struggled to gain mastery of the sickly bodies of others. The confrontation between patient and physician, between sickness and health, reveals what Stowe calls the country orthodoxy style of southern practitioners. Country orthodoxy inextricably tied a doctor’s understanding of what it meant to be a professional to his local community. It was within a specific locale that the day-to-day reality of practicing medicine gave shape and meaning to the art of healing. [excerpt

Research ethics and participatory research in an interdisciplinary technology-enhanced learning project

This account identifies some of the tensions that became apparent in a large interdisciplinary technology-enhanced learning project as its members attempted to maintain their commitment to responsive, participatory research and development in naturalistic research settings while also ‘enacting’ these commitments in formal research review processes. It discusses how these review processes were accompanied by a commitment to continuing discussion and elaboration across an extended research team and to a view of ethical practice as an aspect of phronesis or ‘practical wisdom’ which demands understanding of specific situations and reference to prior experience. In this respect the interdisciplinary nature of the project allows the diverse experience of the project team to be brought into play, with ethical issues a joint point of focus for continuing interdisciplinary discours

Entangled-state cycles from conditional quantum evolution

A system of cascaded qubits interacting via the oneway exchange of photons is studied. While for general operating conditions the system evolves to a superposition of Bell states (a dark state) in the long-time limit, under a particular resonance condition no steady state is reached within a finite time. We analyze the conditional quantum evolution (quantum trajectories) to characterize the asymptotic behavior under this resonance condition. A distinct bimodality is observed: for perfect qubit coupling, the system either evolves to a maximally entangled Bell state without emitting photons (the dark state), or executes a sustained entangled-state cycle - random switching between a pair of Bell states while emitting a continuous photon stream; for imperfect coupling, two entangled-state cycles coexist, between which a random selection is made from one quantum trajectory to another.Comment: 12 pages, 10 figure

Effect of atomic beam alignment on photon correlation measurements in cavity QED

Quantum trajectory simulations of a cavity QED system comprising an atomic beam traversing a standing-wave cavity are carried out. The delayed photon coincident rate for forwards scattering is computed and compared with the measurements of Rempe et al. [Phys. Rev. Lett. 67, 1727 (1991)] and Foster et al. [Phys. Rev. A 61, 053821 (2000)]. It is shown that a moderate atomic beam misalignment can account for the degradation of the predicted correlation. Fits to the experimental data are made in the weak-field limit with a single adjustable parameter--the atomic beam tilt from perpendicular to the cavity axis. Departures of the measurement conditions from the weak-field limit are discussed.Comment: 15 pages and 13 figure

Quantum Teleportation of Light

Requirements for the successful teleportation of a beam of light, including its temporal correlations, are discussed. Explicit expressions for the degrees of first- and second-order optical coherence are derived. Teleportation of an antibunched photon stream illustrates our results.Comment: 4 pages, 5 figure