Revisiting Entering the Game at Halftime Presentation

This paper reports a large-scale follow-up to a pilot study that examined ways that mass communication programs engage transfer students in internships and cocurricular activities. The author conducted a large-scale survey of students enrolled in programs listed in the AEJMC directory and also conducted interviews with some survey respondents. Results indicate differences between transfer and native students in key areas and offer suggestions for ways to improve experiences for both populations

Prayer Shawls and Yarn Circles

In lieu of an abstract, below is the essay\u27s first paragraph. “If I can teach a woman whose brain has been fried by 25 years on drugs to knit, I can certainly teach you.” With those words to bolster my courage, I began my first knitting lesson. I hadn’t really planned to learn to knit or crochet, but the women at my church were starting a shawl ministry and I liked all the women in the group, and thus had to learn how to knit to be a member of this start-up. My instructor was an elderly woman who had spent many years working with the female inmates at Albion prison

Capstone Courses in Mass Communication Programs

Many colleges and universities emphasize helping students make the transition into higher education. But transition to post-graduation life through approaches such as capstone courses has not received much attention. A survey of mass communication programs indicated that capstones are commonly used for both integration of prior learning and for transition to what students may face after graduation, and that mass communication programs appear to be meeting the challenge of blending these somewhat incongruous approaches. Mass communication capstones employ a wide variety of methods and content, but teachers and administrators appear satisfied with how the courses serve their programs. The survey’s results are interpreted with suggestions for achieving more consistency in mass media capstones

Effects of the Orion Launch Abort Vehicle Plumes on Aerodynamics and Controllability

Characterization of the launch abort system of the Multi-purpose Crew Vehicle (MPCV) for control design and accurate simulation has provided a significant challenge to aerodynamicists and design engineers. The design space of the launch abort vehicle (LAV) includes operational altitudes from ground level to approximately 300,000 feet, Mach numbers from 0-9, and peak dynamic pressure near 1300psf during transonic flight. Further complicating the characterization of the aerodynamics and the resultant vehicle controllability is the interaction of the vehicle flowfield with the plumes of the two solid propellant motors that provide attitude control and the main propulsive impulse for the LAV. These interactions are a function of flight parameters such as Mach number, altitude, dynamic pressure, vehicle attitude, as well as parameters relating to the operation of the motors themselves - either as a function of time for the AM, or as a result of the flight control system requests for control torque from the ACM. This paper discusses the computational aerodynamic modeling of the aerodynamic interaction caused by main abort motor and the attitude control motor of the MPCV LAV, showing the effects of these interactions on vehicle controllability

OVERFLOW Simulations of Space Shuttle Orbiter Reentry Based on As-Built Geometry

The Space Shuttle Orbiters Discovery and Endeavor have been digitally scanned to obtain outer mold line surfaces. Using these scans, the existing overset computational fluid dynamics (CFD) grid system will be modified by projecting the grid points to the scanned geometry. Simulations will be performed using the OVERFLOW solver and the results compared to previous OVERFLOW results on the theoretical geometry and the aerodynamic databook. The "bent airframe" term will be compared between the aerodynamic databook and the computations over a range of reentry conditions

Generic theory of active polar gels: a paradigm for cytoskeletal dynamics

We develop a general theory for active viscoelastic materials made of polar filaments. This theory is motivated by the dynamics of the cytoskeleton. The continuous consumption of a fuel generates a non equilibrium state characterized by the generation of flows and stresses. Our theory can be applied to experiments in which cytoskeletal patterns are set in motion by active processes such as those which are at work in cells.Comment: 28 pages, 2 figure