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We examined the relations between maternal depression, discipline practices, and toddler mental health outcomes, specifically competence and total problem behavior. Ethnicity was considered as a moderator in all analyses. For the first time, ethnicity was considered as a moderator of the heritability of toddler competence and total problem behavior. The

We examined the relations between maternal depression, discipline practices, and toddler mental health outcomes, specifically competence and total problem behavior. Ethnicity was considered as a moderator in all analyses. For the first time, ethnicity was considered as a moderator of the heritability of toddler competence and total problem behavior. The data came from the Arizona Twin Project. A subsample containing only Caucasian (66%) and Hispanic (34%; 87% of Mexican descent) participants was used. Primary caregivers (>95% mothers) reported on levels of maternal depression, discipline practices, and their twins' competency and problem behaviors. It was hypothesized that maternal depression would be associated with less competency and more problem behaviors in toddlers; inductive discipline practices would be associated with higher competency and fewer problem behaviors; and punitive discipline practices would be associated with lower competency and more problem behaviors. Ethnicity was predicted to moderate only the relation between discipline practices and toddler mental health. Consistent with predictions, maternal depression predicted less competency and more problem behaviors, and inductive discipline predicted higher competency and fewer problem behaviors, while punitive discipline predicted lower competency and more problem behaviors. Ethnicity moderated the relation between maternal depression at 12 months and total problem behaviors. The heritability of competence and total problem behavior varied across the Caucasian and Hispanic samples.
ContributorsChon, Sarah Maria (Author) / Lemery-Chalfant, Kathryn (Thesis director) / Knight, George (Committee member) / Bradley, Robert (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / School of International Letters and Cultures (Contributor)
Created2015-05
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Description
Lung cancer is the leading cause of cancer-related deaths in the US. Low-dose computed tomography (LDCT) scans are speculated to reduce lung cancer mortality. However LDCT scans impose multiple risks including false-negative results, false- positive results, overdiagnosis, and cancer due to repeated exposure to radiation. Immunosignaturing is a new method

Lung cancer is the leading cause of cancer-related deaths in the US. Low-dose computed tomography (LDCT) scans are speculated to reduce lung cancer mortality. However LDCT scans impose multiple risks including false-negative results, false- positive results, overdiagnosis, and cancer due to repeated exposure to radiation. Immunosignaturing is a new method proposed to screen and detect lung cancer, eliminating the risks associated with LDCT scans. Known and blinded primary blood sera from participants with lung cancer and no cancer were run on peptide microarrays and analyzed. Immunosignatures for each known sample collectively indicated 120 peptides unique to lung cancer and non-cancer participants. These 120 peptides were used to determine the status of the blinded samples. Verification of the results from Vanderbilt is pending.
ContributorsNguyen, Geneva Trieu (Author) / Woodbury, Neal (Thesis director) / Zhao, Zhan-Gong (Committee member) / Stafford, Phillip (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor) / Department of Psychology (Contributor)
Created2015-05
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Description
The relationship between mental illness (or "madness," as Socrates labeled psychosis, as well as a wide range of states of thought and emotion [Jamison, 1993]) and creativity has been noted since before the times of Socrates. The questions that this noted relationship pose are significant. Famous authors, poets, artists, and

The relationship between mental illness (or "madness," as Socrates labeled psychosis, as well as a wide range of states of thought and emotion [Jamison, 1993]) and creativity has been noted since before the times of Socrates. The questions that this noted relationship pose are significant. Famous authors, poets, artists, and musicians who suffered from various forms of mental illness are littered throughout history. Edgar Allen Poe himself noted, "Men have called me mad but the question is not yet settled, whether madness is or is not the loftiest intelligence \u2014 whether much that is glorious \u2014 whether all that is profound \u2014 does not spring from disease of thought \u2014 from moods of mind exalted at the expense of the general intellect." Only in recent years have researchers begun to classify these disorders of past artists using modern diagnostic measures. While the concept of a relationship between creativity and mental illness is fascinating in and of itself, understanding the implications of a possible correlation is essential to the care and treatment that individuals with the diseases are given. If, indeed, creativity is linked with affective disorders, what does this mean for the treatment of these disorders? By eliminating the symptoms of mood disorders, are we also inadvertently eliminating creativity? It is important to acknowledge the possibility that mental illnesses like bipolar disorder include benefits to those afflicted. How can we treat the negative symptoms of mood disorders while enhancing the positive symptoms? In order to conclude that there is a link between creativity and mood disorders, it is first necessary to reexamine and reestablish the processes by which mood disorders are diagnosed. Although currently diagnosed on a categorical scale \u2014 meaning the patient is diagnosed under the black-and-white category of manic or depressive at a given point in time \u2014 this paper will argue that mood disorders can be better diagnosed and treated on a continuum of mood states. Furthermore, by viewing mood disorders on such a continuum, writers like Anne Sexton and Sylvia Plath, whose diagnoses are debated by historians and professionals, can be established as having a diagnosable affective disorder, since both experienced symptoms of depression and mania, if not in the precise timing and manner proscribed by the Diagnostic Manual. Finally, by determining these writers' diagnoses, a relationship can be explored between their creative states and their mood states.
ContributorsKugler, Danica Eileen (Author) / Montesano, Mark (Thesis director) / Holbo, Christine (Committee member) / Barrett, The Honors College (Contributor) / College of Letters and Sciences (Contributor) / Department of Psychology (Contributor) / Department of English (Contributor)
Created2015-05
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Description
The prospect of anti-aging or life extension technology is controversial in biogerentology but deemed even by skeptical experts to warrant discussion. I discuss the justifications that the probability of life extension technology being developed in the near future is reasonably high and that this research justifies the time and money

The prospect of anti-aging or life extension technology is controversial in biogerentology but deemed even by skeptical experts to warrant discussion. I discuss the justifications that the probability of life extension technology being developed in the near future is reasonably high and that this research justifies the time and money it receives. I investigate potential ethical and societal issues anti-aging technology might create. This paper addresses inequality of access, economic cost, changes in quality of life, the role of death in human life, if and how the technology should be regulated and how parties who choose not to undergo treatment can be fairly treated, even when they are a minority.
Created2015-05
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Description
For many pre-health and graduate programs, organic chemistry is often the most difficult prerequisite course that students will take. To alleviate this difficulty, an intelligent tutoring system was developed to provide valuable feedback to practice problems within organic chemistry. This paper focuses on the design and use of an intelligent

For many pre-health and graduate programs, organic chemistry is often the most difficult prerequisite course that students will take. To alleviate this difficulty, an intelligent tutoring system was developed to provide valuable feedback to practice problems within organic chemistry. This paper focuses on the design and use of an intelligent input parser for nomenclature questions within this system. Students in Dr. Gould's Fall 2014 organic chemistry class used this system and their data was collected to analyze the effectiveness of the input parser. Overall the students' feedback was optimistic and there was a positive relationship between test scores and student use of the system.
ContributorsHusarcik, Edward Andrew (Author) / Gould, Ian (Thesis director) / VanLehn, Kurt (Committee member) / Beerman, Eric (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor)
Created2015-05
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Description
Currently in synthetic biology only the Las, Lux, and Rhl quorum sensing pathways have been adapted for broad engineering use. Quorum sensing allows a means of cell to cell communication in which a designated sender cell produces quorum sensing molecules that modify gene expression of a designated receiver cell. While

Currently in synthetic biology only the Las, Lux, and Rhl quorum sensing pathways have been adapted for broad engineering use. Quorum sensing allows a means of cell to cell communication in which a designated sender cell produces quorum sensing molecules that modify gene expression of a designated receiver cell. While useful, these three quorum sensing pathways exhibit a nontrivial level of crosstalk, hindering robust engineering and leading to unexpected effects in a given design. To address the lack of orthogonality among these three quorum sensing pathways, previous scientists have attempted to perform directed evolution on components of the quorum sensing pathway. While a powerful tool, directed evolution is limited by the subspace that is defined by the protein. For this reason, we take an evolutionary biology approach to identify new orthogonal quorum sensing networks and test these networks for cross-talk with currently-used networks. By charting characteristics of acyl homoserine lactone (AHL) molecules used across quorum sensing pathways in nature, we have identified favorable candidate pathways likely to display orthogonality. These include Aub, Bja, Bra, Cer, Esa, Las, Lux, Rhl, Rpa, and Sin, which we have begun constructing and testing. Our synthetic circuits express GFP in response to a quorum sensing molecule, allowing quantitative measurement of orthogonality between pairs. By determining orthogonal quorum sensing pairs, we hope to identify and adapt novel quorum sensing pathways for robust use in higher-order genetic circuits.
ContributorsMuller, Ryan (Author) / Haynes, Karmella (Thesis director) / Wang, Xiao (Committee member) / Barrett, The Honors College (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Department of Chemistry and Biochemistry (Contributor) / School of Life Sciences (Contributor)
Created2015-05
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Description
Three populations of experimentally evolved Drosophila melanogaster populations made up of high temperature (H, constant 25 ᵒC), low temperature (C, constant 16 ᵒC) and temporal homogeneity (T, environment changes between 16 ᵒC and 25 ᵒC) were prepared and assayed to determine difference in citrate synthase activity. Between the three groups,

Three populations of experimentally evolved Drosophila melanogaster populations made up of high temperature (H, constant 25 ᵒC), low temperature (C, constant 16 ᵒC) and temporal homogeneity (T, environment changes between 16 ᵒC and 25 ᵒC) were prepared and assayed to determine difference in citrate synthase activity. Between the three groups, the results were inconclusive: the resulting reaction rates in units of nmol min-1mgfly-1 were 81.8 + 20.6, 101 + 15.6, and 96.9 + 25.2 for the hot (H), cold (C), and temporally homogeneous (T) groups, respectively. We conclude that the high associated variability was due to a lack of control regarding the collection time of the experimentally evolved Drosophila.
ContributorsBelohlavek, David (Author) / Angilletta, Michael (Thesis director) / Francisco, Wilson (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor)
Created2015-05
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Description
Abortion is a highly controversial procedure, and it has divided the country into two factions: pro-life and pro-choice. This intense debate is marred by anger through protests and violent actions against supporters of abortion. With all of the tension surrounding the moral significance of the abortion issue, the question arises:

Abortion is a highly controversial procedure, and it has divided the country into two factions: pro-life and pro-choice. This intense debate is marred by anger through protests and violent actions against supporters of abortion. With all of the tension surrounding the moral significance of the abortion issue, the question arises: How did specific figureheads, events, and contributing factors lead to the generation of the stigma and polarization surrounding the dichotomy of pro-life versus pro-choice abortion stances in the United States of America?
ContributorsAbdi-Moradi, Sepehr (Author) / Maienschein, Jane (Thesis director) / O'Neil, Erica (Committee member) / Abboud, Alexis (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor)
Created2015-05
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Description
The depiction of mental illness, schizophrenia in particular, within film is a unique phenomenon that film directors have decided to undertake more so in the last 20 years than ever before in cinematic history (Wedding & Niemic, 2014; Robinson, 2004; Gabbard & Gabbard, 1999; Wahl, 1997). Countless filmmakers have taken

The depiction of mental illness, schizophrenia in particular, within film is a unique phenomenon that film directors have decided to undertake more so in the last 20 years than ever before in cinematic history (Wedding & Niemic, 2014; Robinson, 2004; Gabbard & Gabbard, 1999; Wahl, 1997). Countless filmmakers have taken on the challenge of depicting this complex, yet degenerative condition that entails auditory and visual hallucinations, disorganized thought and speech, and delusions. Its portrayals are usually exaggerated and romanticized, and convey a sense of separate "Otherness" with those who have a mental disorder. And while filmmakers try to encapsulate the schizophrenic experience, it is not without psychiatric error and regarding the person who has schizophrenia as a spectacle. This unfair and ostracizing view of people who have schizophrenia is fueled by films like A Beautiful Mind and The Shining where the film either creates impossibly high standards for schizophrenics to perform at, or the film paints the character as a violent savage. In either case, the end result is the marking and, usually, denouncement of the schizophrenic for their illness. What filmmakers tend to overlook is how much the public learns from the cinematic portrayals of these disorders, and that their films are contributing to an overarching issue of public presumptions of actual schizophrenia and how it is perceived. While the Hollywood approach offers a depiction that is usually more tangible and enjoyable for masses of audiences, spectators should recognize that these are artistic interpretations that take liberties in their depictions of schizophrenia. Viewing these films with an objective mindset to better understand the inner workings of schizophrenia is absolutely crucial in arriving anything close to the truth behind this mental illness that has been demonized long enough.
ContributorsFraga, Nicholas Andrew (Author) / Miller, April (Thesis director) / Cavanaugh Toft, Carolyn (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / Department of English (Contributor)
Created2015-05
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Abstract The United States has a very long history of putting laws into place that enable certain people to immigrate equally, but prevent others from doing so, thus promoting large undocumented populations. In many instances the people creating these laws cite worries that the people attempting to enter the United

Abstract The United States has a very long history of putting laws into place that enable certain people to immigrate equally, but prevent others from doing so, thus promoting large undocumented populations. In many instances the people creating these laws cite worries that the people attempting to enter the United States are a hazard to the country. Some examples of this include :the "Chinese Exclusion Act", which prevented people from China from immigrating, the internment of Japanese Americans during WWII, and the creating of various laws that designated Irish people as not being white during the 18th century. Now there is a debate over whether or not people who come to the United States undocumented with their parents at a young age should be barred from living here. These Dreamers are at the center of this often debated issue. A set of hour-long interviews has been conducted with seven dreamers in order to get their opinions on several topics. These include SB1070, the Dream Act, HB56, and a variety of other topics. In addition a comprehensive timeline and review of legislation concerning immigration has been created to provide a historical context. Lastly, my own conclusion about this topic have been presented.
ContributorsSprute, Eric Michael (Author) / Larson, Elizabeth (Thesis director) / Lennon, Tara (Committee member) / Barrett, The Honors College (Contributor) / Department of Chemistry and Biochemistry (Contributor)
Created2015-05