Digital Commons Network^™

Procedural Calibration Of Haploscope Wings To Establish Accurate Focal Vergence Depth, Kristen Leigh Massey

Theses and Dissertations

This thesis project was undertaken with the intent to discover the source of a known but hitherto unexplained error in the calibration of the wings for a haploscope used in depth perception studies. The angles of the haploscope wings are used to control the vergence angle of the virtual images projected into each eye. This accounts for a strong depth cue used in AR and depth perception studies. Two experiments were devised to both display and attempt to characterize the error between the theoretical wing angles needed to cause a user's vision to verge at some focal depth and the …

Dynamics Of Perception Of Affordances For Reaching For Self And Other, Alex Dayer

Theses and Dissertations

Perceivers are sensitive to the boundaries at which they must transition from one mode of performing a given behavior to another. As in other self-organizing systems, such transitions occur at a critical value of a parameter with continuous changes in that parameter. In general, behavioral transitions occur at larger values when that parameter increases than when it decreases (positive hysteresis), and perceptual transitions (for a behavior to be performed by one’s self) occur at larger values when that parameter decreases than when it increases (negative hysteresis). We investigated whether this pattern also occurs in perceptual transitions for a behavior to …

Arab Americans’ Perceptions Of Their Experiences With Police Post 9/11 In Metropolitan Milwaukee, Ayman Khatib

Theses and Dissertations

ABSTRACT

The September 11, 2001, terrorist attacks had a serious impact on local police relations and their local minority groups. September 11, 2001, negatively shaped the treatment of Arab Americans at the hands of local police and many arms of the federal government. This was due to the increased role of local police in intelligence gathering and immigration law enforcement.

Many urban police departments shifted their policing strategies from community policing to traditional crime fighting and intelligence gathering after September 11, 2001. Arab Americans as a local minority community suffered the brunt of such strategies where police routinely disregarded many …

The Effects Of Instructors Discussing Alcohol In The Classroom On Student Perceptions Of Their Instructor, Nathaniel Swiech Brophy

Theses and Dissertations

This thesis is comprised of two studies. Study I is a qualitative exploratory analysis which attempts to uncover students’ experiences with instructors discussing alcohol in the university classroom and how the appropriateness of this behavior is determined. How this mention of alcohol affects the students’ perception of the instructor, as well as the relationship between perceived appropriateness of the behavior and change in perception, are also investigated. Study I found that students have experienced their instructors mentioning alcohol in the classroom as normative student behavior, part of the formal curriculum, and their instructor disclosing personal alcohol use. Participants determined appropriateness …

Factors Affecting Illinois Legislators' Perceptions Of School-Based Agricultural Education, Perry William Harlow

Theses and Dissertations

This study examined factors contributing to Illinois General Assembly members’ perceptions of school-based agricultural education. Personal characteristics and multiple media sources were examined to determine if any of these factors affected their perception of school-based agricultural education. These factors included the population area of where the legislator grew up, the population area of the district the legislator represents, the geographical location of the legislator’s district, whether the legislator lived on a farm, and whether the legislator worked on a farm. The factors also included frequency of seeing information about school-based agricultural education on multiple media source including television, radio, newspaper, …

Association Between Perception Of Police Prejudice Against Minorities And Juvenile Delinquency, Kwang Hyun Ra

Theses and Dissertations

Criminologists have long studied police prejudice with the assumption that it is a fundamental problem resulting in discrimination against certain racial and ethnic groups. However, little research has examined how individuals’ perceptions of police prejudice (PPP) influences compliance or delinquency behavior among the public. To fill this gap, in this paper, I reviewed relations between police and racial/ethnic groups, theorized an association between PPP and juvenile delinquency, and empirically examined the association.

The long history of racial/ethnic prejudice and discrimination predisposes racial/ethnic minorities to consider themselves targets of discrimination and to feel powerless. Moreover, some minorities justify the current system …