Equilibrium models of star formation successfully derive the globally-averaged Kennicutt-Schmidt (KS) relation, positing that star formation rates (SFRs) are self- regulated by the turbulence in the interstellar medium (ISM) generated by stellar feedback. However, these models make assumptions that may not be achieved in realistic galaxy systems. Cosmological zoom-in simulations,...
As sound changes advance across large geographic areas, they progress unevenly across populations. The speakers who lead these changes often share macro-social identities, like place or social class affiliations (e.g. Nesbitt 2018; Wagner et al. 2016). But the features undergoing these macro-level sound changes also hold social meanings related to...
We all—users, businesses, governments, and the general public—expect internet platform companies, like Meta, Alphabet, and Amazon to govern their users. Without platform governance, we all experience disasters like foreign election interference, vaccine misinformation, counterfeiting, and even genocide.
Unfortunately, the platform companies have failed. To this day, despite the lessons from...
Winner, 2012 Frank Luther Mott-Kappa Tau Alpha Research Award
Women of the Washington Press argues that for nearly two centuries women journalists have persisted in their efforts to cover politics in the nation’s capital in spite of blatant prejudice and restrictive societal attitudes. They have been held back by the...
Metaphor is an important and pervasive phenomenon in language and cognition. The vast majority of psycholinguistic research on metaphor has focused on noun metaphors (e.g., That surgeon is a butcher; That lawyer is a shark), while relatively little has investigated the processing of verb metaphors (e.g., The car limped down...
As our world is increasingly filled with data visualizations, having the skills to leverage data visualizations is essential for participation in society. Confident engagement with data visualizations is critical for being an educated member of society; however, research has shown that it is difficult for individuals to digest and gain...
Understanding the characteristics of interfaces between materials and solvent media such as structure, chemistry, and charge remains crucial to determining the properties and performance of numerous systems and technologies. This thesis focuses specifically on characterizing the interactions of water at oxide interfaces. A large collection of questions remains unanswered about...
Visual localization is a critical capability for autonomous systems, enabling them to accuratelyestimate their position and orientation within an environment using visual data. This thesis focuses
on achieving a robust and reliable visual localization on both local and global level to enhance
localization performance in a wide range of environments....
Lackluster BA completion rates have made it clear that improving postsecondary outcomes in the U.S. is not simply a matter of raising college enrollment rates. In addition to increasing the number of people who attend college, it is also important to increase the number of people who graduate. Over the...
Recent developments have enabled L12-strengthened Co-based superalloys, which have thepotential to surpass Ni-based superalloys as the material of choice for the hottest sections of turbine
blades due to cobalt’s 40 ºC higher melting point. The most-studied branch of Co-based
superalloys are based on the L12 phase Co3(Al,W); however, there is...