Operator responsiveness to critical alarm/alert display systems must rely on faster and safer behavioral responses in order to ensure mission success in complex environments such as the operator station of an Unmanned Aerial System (UAS). An important design consideration for effective UAS interfaces is how to map these critical alarm/alert display systems to an appropriate sensory modality (e.g., visual or auditory) (Sarter, 2006). For example, if an alarm is presented during a mission in a modality already highly taxed or overloaded, this can result in increased response time (RT), thereby decreasing operator performance (Wickens, 1976). To overcome this problem, system designers may allow the switching of the alarm display from a highly-taxed to a less-taxed modality (Stanney et al., 2004). However, this modality switch may produce a deleterious effect known as the Modality Shifting Effect (MSE) that erodes the expected performance gain (Spence & Driver, 1997). The goal of this research was to empirically examine a technique called bridging which allows the transitioning of a cautionary alarm display from one modality to another while simultaneously counteracting the Modality Shifting Effect. Sixty-four participants were required to complete either a challenging visual or auditory task using a computer-based UAS simulation environment while responding to both visual and auditory alarms. An approach was selected which utilized two 1 (task modality) x 2 (switching technique) ANCOVAs and one 2 (modality) x 2 (technique) ANCOVA, using baseline auditory and visual RT as covariates, to examine differences in alarm response times when the alert modality was changed abruptly or with the bridging technique from a highly loaded sensory channel to an underloaded sensory channel. It was hypothesized that the bridging technique condition would show faster response times for a new unexpected modality versus the abrupt switching condition. The results indicated only a marginal decrease in response times for the auditory alerts and a larger yet not statistically significant effect for the visual alerts; results were also not statistically significant for the analysis collapsed across modality. Findings suggest that there may be some benefit of the bridging technique on performance of alarm responsiveness, but further research is still needed before suggesting generalizable design guidelines for switching modalities which can apply in a variety of complex human-machine systems.

For nearly twenty-six years, Brian O’Nolan wrote “Cruiskeen Lawn” in the Irish Times under the pseudonym Myles na gCopaleen. The column has often been regarded as a distraction for O’Nolan—one that kept him from writing more novels or plays. Yet characteristics of his work across genres and stages of his life (such as his use of pseudonyms) began in his experiments within newspapers. As a student at University College, Dublin, he wrote for the student publication Comhthrom Féinn, and later began his own satirical paper, Blather. Our study and understanding of “Cruiskeen Lawn” is fundamental to our understanding of O’Nolan as an author across literary forms, topics, and periods.   The translation of “Cruiskeen Lawn” from the expanse of a newspaper page to an edition or to a dissertation is itself a form of editorial emendation. This dissertation, bound with its own set of constraints and rules, cannot fix this. Yet it will aim to consider the gains and losses of how we collect O’Nolan’s column. This dissertation has four chapters. The first relates the story of how O’Nolan came to writing through newspapers, how he came to write in the Irish Times, and how his relationship with the paper changed over time. A chronology includes the events in O’Nolan’s own life that pertain to his newspaper writing and work under the pseudonym Myles na gCopaleen. It gives readers a holistic sense of the columns by placing them in the broader context of his life and includes end notes with references to his papers. The catalogue accounts for every “Cruiskeen Lawn” article O’Nolan published and it serves as the first document that consolidates this information. The edition comprises forty “Cruiskeen Lawn” articles. Annotations focus on tracing O’Nolan’s references to other articles and papers in order to open investigative pathways toward those sources and to show how richly the column borrowed from other media. / 2019-08-09T00:00:00Z

Terrorism and conflict is ongoing, and in today’s world it appears to be increasing, however, numerous people have blamed the swell in violence on specific sources. In regards to September 11 and similar terrorist incidents, for example, it is quite easy for the media, as well as other sources, to place responsibility in the hands of a specific group or religion. In this case, Islam, Arabs or the Middle East region seems to be connected to these violent incidents. The reality of the situation may place responsibility in some sources within this region, however, an overgeneralization in regards to a diverse religion and culture may be occurring due to “overall, ideological judgments” by various entities including the news media. According to numerous perspectives, it has become possible for a few carefully chosen words within the media to trigger racially-driven prejudices and actions by agencies, institutions, and the public. Our language seems to be powerful enough to let a single phrase spin a news story into a national warning against a certain group. In other words, the power of association, in particular here between words and perceptions, allows the public to believe in their mind something that may or may not be true. In this case, various studies have shown the tendency for the public to associate Arabs with violence, particularly terrorism. The combination of negative media framing and common ethnic schemas of Arabs and Muslims have resulted in a long history of socialization and activation in the American and perhaps, wider culture. Therefore, this study will mainly focus on an assumed semantic implication of word associations in the media based on shared ideological and socially shared knowledge, rather than measure any explicit statements of racial and ethnic schemas. / Master of Arts

The purpose of this dissertation was to analyze perceptions of terrorism through the analysis of two newspapers’ news coverage of terrorism after the September 11 attacks, a popular Kentucky newspaper, the Courier-Journal and the New York Times (NYT). The social construction of terrorism was reflected as a problem through moral panics or something that a society believed as wrong that needed to be eradicated. Previous research had found that newspapers have contributed to moral panics by exaggerating the scope of social problems such as school shootings. I used the theoretical framework of moral panics; Goode and Ben-Yehuda’s (2009) two criteria of moral panics, which were (1) concern and (2) volatility; portrayals of heroes, folk devils, and victims in moral panics; and war on terror as sensitizing concepts to find themes. I analyzed 500 the CJ newspaper articles and 500 the NYT articles from September 11, 2001 to August 30, 2018 to find the differences between both newspapers, identify portrayals, and determine how terrorism was socially constructed. Overall, I found differences between the two newspapers on how they depicted terrorism and themes on how both newspapers reported and described terrorism. The reporting on terrorism has implications to the overall handling of terrorism such as the Muslim Travel Ban.

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We present and study the current research trends and advances for optimizing assemble-to-order systems with stochastic lead times. Assemble-to-order systems are widely used in several industries, where end products consist of multiple components and are customizable. Manufacturers can offer greater flexibility to their customers by delaying the assembly of the components until after the order is placed. This means they do not keep an inventory of end-products. Only components can be kept in the inventory and assembled upon demand. We compare and contrast different formulations and the features of assemble-to-order systems studied in the literature including system configuration, replenishment policy, lead time type, and demand distribution. Single-period systems, periodic-review systems, and continuous-review systems are considered. Current assumptions, formulations, solutions, and challenges are discussed. / Thesis / Master of Science (MSc)