Realist magic in the fiction of William Dean Howells

William Dean Howells was committed to determining what would inspire people from different economic, political, and religious backgrounds to imagine each other as respected members of a human community. Scholars have debated whether his realist aesthetic was suited to do that. Some have argued that realism works to contain the lower classes, and others have argued that it portrays a heterogeneous society in which social problems can be solved through human negotiation between the middle classes and others. Scholars have not, however, addressed how Howells performs the necessary shift in his fiction from a space in which characters focus on their own interests to a space in which they seek to enact justice through negotiating with disparate people. This article identifies and names what enacts that necessary shift: the literary device of accident. In Howells's fiction chance meetings, feelings of accidental connection, and injuries during travel force his middle-class characters into understanding labor politics, slum dwellers, and morally compromised millionaires. His use of accident changes over time, from The Undiscovered Country (1880) to Annie Kilburn (1889) and A Hazard of New Fortunes (1890). This essay traces that change in order to reflect on the democratic and antidemocratic implications of Howells's realist aesthetic. © Regents of the University of California

Fourier and Gegenbauer Expansions for a Fundamental Solution of Laplace's Equation in Hyperspherical Geometry

For a fundamental solution of Laplace's equation on the $R$-radius $d$-dimensional hypersphere, we compute the azimuthal Fourier coefficients in closed form in two and three dimensions. We also compute the Gegenbauer polynomial expansion for a fundamental solution of Laplace's equation in hyperspherical geometry in geodesic polar coordinates. From this expansion in three-dimensions, we derive an addition theorem for the azimuthal Fourier coefficients of a fundamental solution of Laplace's equation on the 3-sphere. Applications of our expansions are given, namely closed-form solutions to Poisson's equation with uniform density source distributions. The Newtonian potential is obtained for the 2-disc on the 2-sphere and 3-ball and circular curve segment on the 3-sphere. Applications are also given to the superintegrable Kepler-Coulomb and isotropic oscillator potentials

Reflexive Learning and Performative Failure

In this paper we emphasize the importance of context for student learning. Based on reflective logs and interview data, we explore how students learn outside of the classroom as they undertake an experiential dissertation project. We identify three different forms of reflexive learning and critique, all triggered by some form of performative failure; scholarly critique, engaged critique and engaged action. Drawing on Butler’s theory of performativity we illustrate how reflexivity is not purely the action of any individual student, rather it is a practice that is co-created within a certain context. As such, we contest individualistic understandings of reflexivity and encourage a careful consideration of the places students and managers are encouraged to be reflexive

Threat perception while viewing single intruder conflicts on a cockpit display of traffic information

Subjective estimates of the threat posed by a single intruder aircraft were determined by showing pilots photographs of a cockpit display of traffic information. The time the intruder was away from the point of minimum separation was found to be the major determinant of the perception of threat. When asked to choose a maneuver to reduce the conflict, pilots selected maneuvers with a bias toward those that would have kept the intruders in sight had they been visible out the cockpit window

Perception of aircraft separation with pilot-preferred symbology on a cockpit display of traffic information

The concept of a cockpit display of traffic information (CDTI) was developed for use in later full mission simulator evaluations of the CDTI concept. Pilots chose their preferred method of displaying air traffic information for several variables. Variables included: type of background, update rate, update type, predictor type, and history type. Each pilot designed a display he felt would be most useful in flight operations. After a series of test trials, each pilot was given the opportunity to modify the display for the experimental task. For a second day of testing, they repeated the experimental task using their display as well as displays chosen by other pilots. Results indicated a variety of individual preferences in symbology and differences in the accuracy of judgments. Pilots indicated concern for clutter of the display, relationship of the displayed symbology to physical reality, and a need to perceive the relative motion of the intruder aircraft. Analysis of data indicated that pilots were able to improve their performance with practice