Matching Items (229)
Description
Metalloporphyrins serve important roles in biological processes and in emerging technologies with applications to energy conversion. When electrochemically activated in solution, metalloporphyrins have the ability to catalyze the conversion of protons into hydrogen fuels. In this report, the synthesis and characterization of zinc, nickel, cobalt and copper analogs of 5,10,15,20-tetrakis(pentafluorophenyl) porphyrin (PF20) and 5,10,15,20-tetra-p-tolyporphyrin (TTP) are described. All target compounds are characterized with UV-Vis spectroscopy and MALDI-TOF mass spectrometry. The freebase porphyrins and non-paramagnetic metalloporphyrins are further characterized by proton nuclear magnetic resonance spectroscopy and all proton resonances are assigned. Electrochemical measurements show the reduction potential of the fluorinated phenyl substituted porphyrins is shifted to less negative values as compared to the reduction potential measured using non-fluorinated analogs. These results illustrate the ability to use fluorine as a synthetic tool for altering the electronic properties of metalloporphyrins. Further, these findings serve a critical role in choosing metalloporphyrin electrocatalysts with the appropriate energetic and optical properties for integration to semiconductors with applications to solar-to- fuels technologies.
ContributorsNanyangwe, Sylvia Kapya (Author) / Moore, Gary (Thesis director) / Van Horn, Wade (Committee member) / School of Criminology and Criminal Justice (Contributor) / School of Molecular Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Police use of force and race often garners a good deal of attention, however it is also important to understand the influence of gender when dealing with male-dominate populations, like police officers. The current study aims to add to the current body of literature by using data from seven cities to examine the relationship between officer gender and police use of force, as well as officer gender and citizen resistance. In relation to use of force, the results show that male officers used significantly less force than female officers. In terms of citizen resistance, the results indicate that officer gender had no effect. Additionally, a number of control variables were significantly related to police use of force and citizen resistance. The implications of these findings are discussed.
ContributorsWeiser, Marah Brooke (Author) / William, Terrill (Thesis director) / Trinkner, Rick (Committee member) / School of Criminology and Criminal Justice (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12
Description
Introduction: Depression is one of the most prevalent mental illnesses in the United States, and is characterized by feeling sad or empty most of the day, nearly every day (American Psychiatric Association, 2013). The experience of childhood trauma is one of many factors that may lead to depression, while trauma can also yield other adverse life outcomes, such as alcohol-related consequences (Felitti et al., 2001; Neumann, 2017). One of the specific aims of this investigation was to examine the direct influences of childhood trauma on depression. We also examined selected direct and indirect influences of childhood trauma on drinking outcomes through the potential mediating mechanism of depression. We examined three distinct drinking outcomes, 1) impaired control over drinking (i.e. the inability to stop drinking when intended), 2) heavy episodic drinking (four or more drinks on one occasion for men, four or more for women), and 3) alcohol-related problems. Methods: A survey was administered to 940 (466 women, 474 men) university students. Structural equation modeling was used to examine the data. Potential two- and three-path mediated effects were examined with the bias corrected bootstrap technique in Mplus (MacKinnon, 2008). Results: Emotional abuse was found to be positively associated with depression. In contrast, having an emotionally supportive family was found to be negatively associated with depression. Congruent with the Self-Medication Hypothesis, depression was found to be positively associated with impaired control over drinking. Physical neglect was found to be positively associated with impaired control. Lastly, emotional abuse was found to be indirectly linked to increased heavy episodic drinking and alcohol-related problems through depression and impaired control.
ContributorsBobel, Emily Rebecca Leslie (Author) / Patock-Peckham, Julie (Thesis director) / Glenberg, Arthur (Committee member) / Karoly, Paul (Committee member) / Department of Psychology (Contributor) / School of Criminology and Criminal Justice (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12
Description
The Foundation for Individual Rights in Education (FIRE) is an organization dedicated to defending student and faculty freedom of speech rights on college campuses in the United States. Their work has brought national attention and debate around how unbiased the foundation truly is. This thesis discusses the relevant cases around the freedom of speech such as United States v. O'Brien and Matal v. Tam in order to develop an understanding of general free speech protection. Free speech cases specifically regarding school campuses were analyzed such as Tinker v. Des Moines, Bethel v. Fraser, and Rosenberger v. University of Virginia to show the limitations of what FIRE can fight on campuses. FIRE's case selection methods were analyzed, and a bias toward conservative cases was found. This bias is disputed by FIRE supporters as natural given the liberal nature of higher education, but data surrounding professors, disinvitation attempts, and student opinions invalidate these claims. Three FIRE cases (Roberts v. Haragan, Smith v. Tarrant County College District, and the Dixie State Incident) were analyzed to show the progression and style of the foundation through the years and how they developed their aggressive and bully reputation. Finally, current large incidents of free speech oppression were analyzed to understand how they skew and affect public perception of the overall struggle for freedom of speech on college campuses. This thesis found that FIRE is in fact biased and that their efforts to make positive change are undermined by this. Keywords: FIRE, free speech, First Amendment
ContributorsRamos-Mata, Joseph Wilfrido (Author) / von Delden, Jayn (Thesis director) / Fradella, Hank (Committee member) / School of Social Transformation (Contributor) / School of Public Affairs (Contributor) / School of Criminology and Criminal Justice (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12
Description
It is a tragic reality that many individuals in the criminal justice system suffer from a mental illness. As a result, both mental health programs and mental health courts have been developed in response to the increasing number of individuals in the criminal justice system that are suffering from a mental illness. The first objective of this review is to discuss the background on mental illness as it relates to the criminal justice population, and to understand the common causes of incarceration amongst the mentally ill, including the deinstitutionalization movement of the 1960s, the unavailability of intermediate and long-term hospitalization in state hospitals, more formal and rigid criteria for civil commitment, a lack of adequate support systems and access to mental health treatment in the community, and the high recidivism rates by these types of offenders. Considering these causes, another objective of this review is to compare and contrast the United States' first mental health courts, including those in Broward County, Florida, King County, Washington, San Bernardino, California, and Anchorage, Alaska, by ultimately focusing on the origins of each court, the stages of intervention, methods of entry, competency evaluations, treatment approaches, and disposition of charges. From there, this review considers the differences between the courts and proceeds with a synthesis of the common and recurring themes between them, and then ends with recommendations specific to the mental health court system on practices that can be implemented or altered in order to encourage a more effective form of justice for the mentally ill, and a discussion of the policy solutions that have already been proposed to address the problem.
ContributorsReynolds, Dylan Marie (Author) / Johnson, Eric (Thesis director) / Fradella, Hank (Committee member) / School of Criminology and Criminal Justice (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Abstract Latent fingerprints are a critical component of the evidence that is captured and analyzed from crime scenes and presented for convictions in court. Although fingerprint science has been used for many years in forensics, it is not without many criticisms and critiques from those that believe it is too subjective. Researchers from many disciplines have tried to refute this claim by completing experiments that would eventually lead to a fingerprint aging technique as well as providing statistical models and mathematical support. In this literature review, the research that has been widely published and talked about in this field was reviewed and analyzed to determine what aspects of the experiments are benefitting the study of degradation. By carefully combing through the methods and results of each study, it can be determined where future focuses should be and what disciplines need to be exploited for knowledge. Lastly, an important aspect of the experiments in recent years have depended on the collaboration with statistics so this evidence was examined to identify what models are realistic in determining error rates and likelihood ratios to support latent fingerprint evidence in court. After a thorough review, it is seen that although large strides have been taken to study the degradation of fingerprints, the day where fingerprints will be able to be definitively aged may be ways away. The current experiments have provided methods such as three-dimensional and visual parameters that could potentially find the solution, but also uncovered methods such as immunolabeling and chemical composition that face major challenges. From the statistically point of view, researchers are very close in developing equations that exploit the likelihood ratios of similarity and even calculate the various possible error rates. The evidence found in this review shows that science is one step closer to the age determination of fingerprints.
ContributorsPorter, Lindsey Jordan (Author) / De Alcaraz Fossoul, Josep (Thesis director) / Mancenido, Michelle (Committee member) / School of Criminology and Criminal Justice (Contributor) / School of Mathematical and Natural Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Academic success in childhood is crucial for later academic, occupational, and life success (Heckman, 2006; Kuncel, Hezlett, & Ones, 2004; Spengler, Brunner, Damian, Lüdtke, Martin, & Roberts, 2015). Recent research suggests sleep is important for academic success but lacks objective measures of sleep (Buckhalt, El-Sheikh, Keller, & Kelly, 2009; Curcio, Ferrara, & De Gennaro, 2006; Dewald, Meijer, Oort, Kerkhof, & Bögels, 2010; Philbrook, Hinnant, Elmore-Staton, Buckhalt, & El-Sheikh, 2017). The purpose of this study was to examine the relations between sleep and academic success among children through objective measures of sleep in order to expand on the literature. Our sample consisted of 381 twins (50.4% male; 56% Caucasian; 36.5% same sex dizygotic) participating in an 8-year assessment from a longitudinal twin study. Actigraphy was used to assess sleep while various measures were used to assess academic success. A series of mixed model regressions were used to test the main predictions, with family entered as a random effect. Sex, age, Hispanic, SES, and zygosity were controlled for. Significant negative relations were revealed between sleep latency and reading and sleep latency and school liking. Additionally, SES was the most consistent significant positive predictor of our measures of academic success. These results suggest sleep and effects of SES should be considered when developing ways to help children’s school performance.
ContributorsAlvarez, Rachel Marie (Author) / Valiente, Carlos (Thesis director) / Doane, Leah (Committee member) / School of Criminology and Criminal Justice (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
A music therapy informed music group program was created and implemented at the Maricopa Reentry Center in Phoenix. This program \u2014 entitled Building Hope Through Music \u2014 utilized music therapy techniques including lyric analysis, songwriting, singing, musical games, and guided visualization in order to improve self-awareness, provide a medium for self-expression, increase teamwork and collaboration, promote relaxation, facilitate emotional processing and awareness, and improve tolerance of non-preferred activities in participants. This group was conducted for seven months and had participation from over 400 male ex-offenders.
ContributorsQuirbach, Rachel Marie (Author) / Wright, Kevin (Thesis director) / Thompson, Jason (Committee member) / Belgrave, Melita (Committee member) / School of Criminology and Criminal Justice (Contributor) / School of Music (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
This paper introduces the causes and effects of domestic violence in a general sense, and further focuses on the specific consequences experienced by Latinos of traditional culture in regards to partner abuse. While it is unclear why rates of intimate partner violence are higher for Latinas, their cultural values associated with gender roles and spiritual beliefs are complicating factors that are further magnified by socioeconomic challenges many Latinas experience. This paper examines the interplay between Latino cultural values and intimate partner violence, and highlights the relevance of this knowledge to inform effective social work practice in the Latino community.
ContributorsBennett, Brittney Kay (Author) / Bonifas, Robin (Thesis director) / Parsai, Monica (Committee member) / Kennedy, Teri (Committee member) / Barrett, The Honors College (Contributor) / School of Criminology and Criminal Justice (Contributor) / School of Social Work (Contributor)
Created2013-05
Description
In 2012, Chick-fil-A president Dan Cathy's "came out" about his anti-same sex marriage views, launching an enormous negative backlash across social media networks. To counteract this, former governor Mike Huckabee called on his Facebook fans to support the company on "Chick-fil-A Appreciation Day," both on Facebook and in person. The project examines both the backlash and Appreciation Day on social media networks. Posts on the Appreciation Day Facebook event page and similar posts on Twitter were first broken down in the framework of supportive and oppositional posts and then analyzed in further contexts. Comments on official Chick-fil-A Facebook statuses were then examined in a similar fashion. The research concludes that a strong support system both online and offline were necessary for Chick-fil-A to recover from its backlash. The controversy that ensued is ultimately a case study in the growing influence of Facebook as a tool for small-scale activism.
ContributorsKuiland, Zachary Rico (Author) / Cheong, Pauline (Thesis director) / Szeli, Eva (Committee member) / Lim, Merlyna (Committee member) / Barrett, The Honors College (Contributor) / School of Criminology and Criminal Justice (Contributor) / Department of Psychology (Contributor)
Created2013-05