Matching Items (77)
Description
Honeybees (Apis mellifera) are pollinators that face multiple challenges during foraging such as fungicides applied to floral sources. Fungicides are chemicals used to inhibit key fungal mechanisms like metabolism, but their effects remain relatively unknown in bees. In addition, studying the maturing bee can help us identify demographics that are more vulnerable to toxic materials like fungicides. The purpose of this study is test whether maturation and the fungicide Pristine influence the permeability of the blood-brain barrier. Specifically, we use a transportable dye to test how blood brain barrier transporter function responds to toxic insult and how it changes with age. Oral ingestion of Pristine by female workers did not have an effect on blood brain barrier permeability which suggests Pristine may have no or longer term consequences in the bee. However, blood brain barrier permeability changed with the bee's age which could be explained by the regulation of blood brain barrier transporters during natural transitions in hive task or the presence of hemolymph protein filtration
ContributorsPatel, Aamir S. (Author) / Amdam, Gro (Thesis director) / Harrison, Jon (Committee member) / Ozturk, Cahit (Committee member) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Dire wolves have recently risen to fame as a result of the popular television program Game of Thrones, and thus many viewers know dire wolves as the sigil and loyal companions of the Stark house. Far fewer recognize dire wolves by their scientific name, Canis dirus, or understand the population history of this ‘fearsome wolf’ species that roamed the Americas until the megafaunal mass extinction event of the Late Pleistocene. Although numerous studies have examined the species using morphological and geographical methods, thus far their results have been either inconclusive or contradictory. Remaining questions include the relationships dire wolves share with other members of the Canis genus and the internal structure of their populations. Advancements in ancient DNA recovery methods may make it possible to study dire wolf specimens at the molecular level for the first time and may therefore prove useful in clarifying the answers to these questions. Eighteen dire wolf specimens were collected from across the United States and subjected to ancient DNA extraction, library preparation, amplification and purification, bait preparation and capture, and next-generation sequencing. There was an average of 76.9 unique reads and 5.73% coverage when mapped to the Canis familiaris reference genome in ultraconserved regions of the mitochondrial genome. The results indicate that endogenous ancient DNA was not successfully recovered and perhaps ancient DNA recovery methods have not advanced to the point of retrieving informative amounts of DNA from particularly old, thermally degraded specimens. Nevertheless, the ever-changing nature of ancient DNA research makes it vital to continually test the limitations of the field and suggests that ancient DNA recovery methods will prove useful in illuminating dire wolf population history at some point in the future.
ContributorsSkerry, Katherine Marie (Author) / Stone, Anne (Thesis director) / Amdam, Gro (Committee member) / Larson, Greger (Committee member) / School of Human Evolution and Social Change (Contributor) / School of Nutrition and Health Promotion (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Abstract Objective: The purpose of this study was to determine the feasibility (e.g., practicality and demand) of a 4-week series of yoga classes in a homeless shelter. Participants: Five current residents of Central Arizona Shelter Services (CASS) and the Chief of Programming at CASS. Methods: Each shelter resident participated in a 5-minute interview answering questions regarding the demand of implementing a yoga program at CASS. The Chief of Programming participated in a 30-minute interview answering questions regarding the practicality of implementing a 4-week series yoga program at the homeless shelter. Results: CASS residents reported a strong desire to attend a yoga program. The Chief of Programming at CASS reported that implementing a yoga program would conflict with the overall goal of the shelter. Conclusion: Implementing a 4-week series yoga program is not feasible at CASS although there is a strong demand for a yoga program among the homeless population of the Phoenix metro area.
ContributorsSamuels, Jasmyne Angelique (Author) / Hart, Teresa (Thesis director) / Huberty, Jennifer (Committee member) / Pearl, Julia (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Recent research has confirmed and revealed many physical and mental benefits of yoga. The practice of yoga has spread throughout the western world, where it is widely used for the purpose of exercise and fitness. Due to its rise in popularity, there is a need for research regarding the energy expenditure required for different types of yoga. The majority of the literature cites yoga as being an effective exercise for light intensity activity, but there are not as many studies attempting to determine if there are postures and sequences that can meet the requirements for moderate physical activity. In addition, there is a need to validate mobile devices with which to measure energy expenditure (EE) that are compatible with the dynamic movements that occur during yoga. The purpose of this study was to measure energy expenditure of twenty-two yoga practitioners of varying experience during a 30-minute Vinyasa flow yoga practice and from this data collection determine: if an ashtanga-based vinyasa yoga class meets the criteria for moderate intensity physical activity, the reliability between the Actigraph and Oxycon Mobile and the validity of an Actigraph GT3X device worn on the hip in estimating energy expenditure for ashtanga-based vinyasa flow yoga. The Actigraph GT3X and the Oxycon mobile were used to measure energy expenditure. Mean values for energy expenditure recorded by the Oxycon and Actigraph were 3.19 ± 0.42 METs and 1.16 ± 0.23 METs respectively, exhibiting a significant difference in data collection. There was no correlation between the values recorded by the two devices, indicating that the Actigraph was not consistent with the Oxycon Mobile (previously validated for measurement of EE). Results of this study indicate that this Vinyasa flow yoga sequence does satisfy the criteria for moderate intensity physical activity as defined by ACSM with an average EE of 3.19 ± 0.42 METs, and that the Actigraph GT3X is not an accurate device for measurement of EE for yoga.
ContributorsHand, Lindsay Gabrielle (Author) / Huberty, Jennifer (Thesis director) / Buman, Matthew (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Objective: To investigate current HCP stillbirth aftercare practices and use findings to inform suggestions for stillbirth aftercare guidelines. Study Design: Participants (n=18) were HCPs (MDs, DOs, or NPs) in the field of Obstetrics and Gynecology or Maternal Fetal Medicine. Focus groups and surveys were conducted. A phenomenological approach was used to explore and understand current stillbirth aftercare practices and thoughts about protocols for stillbirth aftercare. Descriptive statistics were used to analyze demographics of participants and prevalence of references to stillbirth aftercare topics. Results: Sixteen obstetric HCPs (medical doctors and nurse practitioners in the fields of obstetrics and gynecology and/or maternal and fetal medicine) participated in Focus Groups and two obstetric HCPs alternatively completed surveys. Current stillbirth aftercare practices and perceptions related to stillbirth aftercare protocols and guidelines were clustered around the following themes: recommendations made to mothers after stillbirth, subsequent pregnancy care, perceptions and use of protocols for stillbirth aftercare, and responsibilities of nurses and nurse practitioners after stillbirth. Conclusion: Findings were used to develop a list of stillbirth aftercare practice suggestions and may be used to help design future research related to HCPs' stillbirth aftercare practices and the need for training on existing guidelines and development of further protocols or guidelines.
ContributorsMartinez, Lauren Ann (Author) / Huberty, Jennifer (Thesis director) / Coursen, Cristi (Committee member) / Leiferman, Jennifer (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Vitellogenin (vg) is a precursor protein of egg yolk in honeybees, but it is also known to have immunological functions. The purpose of this experiment was to determine the effect of vg on the viral load of deformed wing virus (DWV) in worker honey bees (Apis mellifera). I hypothesized that a reduction in vg expression would lead to an increase in the viral load. I collected 180 worker bees and split them into four groups: half the bees were subjected to a vg gene knockdown by injections of double stranded vg RNA, and the rest were injected with green fluorescent protein (gfp) double stranded RNA. Half of each group was thereafter injected with DWV, and half given a sham injection. The rate of mortality in all four groups was higher than expected, leaving only 17 bees total. I dissected these bees' fat bodies and extracted their RNA to test for vg and DWV. PCR results showed that, out of the small group of remaining bees, the levels of vg were not statistically different. Furthermore, both groups of virus-injected bees showed similar viral loads. Because of the high mortality rate bees and the lack of differing levels of vg transcript between experimental and control groups, I could not draw conclusions from these results. The high mortality could be caused by several factors: temperature-induced stress, repeated stress from the two injections, and stress from viral infection. In addition, it is possible that the vg dsRNA batch I used was faulty. This thesis exemplifies that information cannot safely be extracted when loss of sampling units result in a small datasets that do not represent the original sampling population.
ContributorsCrable, Emma Lewis (Author) / Amdam, Gro (Thesis director) / Wang, Ying (Committee member) / Dahan, Romain (Committee member) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2017-12
Description
Background: The purpose of this study was to determine the acceptability of a survey for MPN patients about: a) how patients with MPN cancer perceive information relayed from their healthcare providers in regards to integrative medicine and b) how patients use integrative medicine modalities to cope with their symptom burden (i.e. fatigue, headaches, abdominal discomfort). Additionally, we assessed what MPN patients thought about the survey (i.e., questions asked, how it could be modified, acceptability). This paper presents the patient's assessment of the survey. This information will be used to finalize the survey and distribute nationally to address integrative medicine and symptom burden in MPN patients. Methods: The survey was taken by 366, English speaking patients previously diagnosed with essential thrombocythemia, polycythemia vera, or myelofibrosis (primary and post polycythemia vera/post essential thrombocythemia) and ages 18 or older. The survey had XX questions and took approximately 20 minutes to complete. Acceptability questions were qualitatively analyzed and used to construct recurring themes and modifications for the final MPN Integrative Survey. Results: The following themes were recurrent in the acceptability responses; MPN symptom burden comments, views on healthcare, comments about demographics, and requests for survey modifications. When asked which Integrative Therapies have been used to treat symptom burden, participants most commonly named guidance therapy (i.e. counseling, prayer), physiotherapy ,and supplements administered orally, intravenously, intramuscularly, and topically. Conclusions: These results suggest this survey is an acceptable and feasible tool for MPN patients to assess how patients with MPN cancer perceive information relayed from their healthcare providers in regards to integrative medicine, and how patients use integrative medicine modalities to cope with their symptom burden. These findings also provide a better understanding of what facilitates and prevents MPN patients from using Integrative Medicine to treat MPN symptoms, as well as suggests useful survey modifications to inform the final MPN Integrative Survey.
ContributorsLebowitz, Nicole (Author) / Huberty, Jennifer (Thesis director) / Gowin, Krisstina (Committee member) / School of Nutrition and Health Promotion (Contributor) / School of Human Evolution and Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Objective: The purpose of this study was to determine the feasibility (i.e., acceptability) of a yoga intervention implemented within a preschool with typically and atypically developing children.
Participants: 29 children between the ages of three and five years that are currently attending the Mary Lou Fulton Teacher’s College Preschool.
Methods: Children participated in eight ~15-20-minute yoga sessions consisting of an opening circle, breathing, mindful movement, and a closing circle with relaxation time. Parents completed weekly homework assignments and surveys about the homework. Parents and teachers both completed daily behavior logs to track their child’s number of outbursts, mention of yoga, and use of yoga. Additionally, parents completed a post-intervention survey to determine overall satisfaction.
Results: The Preschool Behavior Questionnaire paired t-test results did not demonstrate any significant differences in pre-intervention (M=13.00, SD±7.55) and post-intervention (M=11.95, SD±6.92) scores, t(17)=0.94, p=0.36. There were no visible correlations between outbursts and use of yoga as reported by parents, but the use of yoga increased with the number of outbursts as reported by parents. Overall, parents felt the sessions had a positive effect on their child’s behavior and felt their children enjoyed the sessions.
Conclusion: Implementing classroom-based yoga programs could be an acceptable, realistic option to manage and prevent negative behaviors in preschool children.
Participants: 29 children between the ages of three and five years that are currently attending the Mary Lou Fulton Teacher’s College Preschool.
Methods: Children participated in eight ~15-20-minute yoga sessions consisting of an opening circle, breathing, mindful movement, and a closing circle with relaxation time. Parents completed weekly homework assignments and surveys about the homework. Parents and teachers both completed daily behavior logs to track their child’s number of outbursts, mention of yoga, and use of yoga. Additionally, parents completed a post-intervention survey to determine overall satisfaction.
Results: The Preschool Behavior Questionnaire paired t-test results did not demonstrate any significant differences in pre-intervention (M=13.00, SD±7.55) and post-intervention (M=11.95, SD±6.92) scores, t(17)=0.94, p=0.36. There were no visible correlations between outbursts and use of yoga as reported by parents, but the use of yoga increased with the number of outbursts as reported by parents. Overall, parents felt the sessions had a positive effect on their child’s behavior and felt their children enjoyed the sessions.
Conclusion: Implementing classroom-based yoga programs could be an acceptable, realistic option to manage and prevent negative behaviors in preschool children.
ContributorsColeman, Lindsey Katlin (Author) / Huberty, Jennifer (Thesis director) / Rotheram-Fuller, Erin (Committee member) / Mullady, Allison (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
In Apis mellifera, gustatory responsiveness to sucrose is a good indicator of learning ability \u2014 in that individuals with high sucrose responsiveness will typically form faster, longer-lasting associations with conditioned stimulus than individuals with a low sucrose responsiveness. The purpose of this study was to determine whether experience with olfactory conditioning had lasting effects on gustatory responsiveness. Groups were placed in an environment that would facilitate association of an odor to a sucrose reward, tested for retention, then tested for gustatory responsiveness. Control groups underwent the same testing schedule, but were not exposed to odor in the first environment. There was no significant difference in gustatory responsiveness between the two groups. Mann-Whitney tests were used to analyze the results, and though the mean GRS score was lower among the treatment group there was no significant trend, possibly due to small sample sizes.
ContributorsSeemann, J. H. (Author) / Amdam, Gro (Thesis director) / Smith, Brian (Committee member) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Genetic counseling is a medical field that was established in the 1970s, but whose demand is now growing exponentially due to modern genetic technology. We now have the ability to look into the human genetic code, detect the genotype of individuals, and use this knowledge to our benefit. However, Genetic testing results in a need for new ethical boundaries to be drawn. The idea of the "best possible conditions" of conceiving a child and whether this child has a right to not know are the two major ethical issues that will be focused on in order to analyze the ethical boundary that needs to be drawn for genetic counseling. In order to analyze these ethical issues, a focus group of Arizona State University students was organized. After producing results for the focus group, there are no true conclusions that can be drawn that applied to all of society. The focus group sample size was too small to produce a broad range of results and the participants were all Arizona State University Undergraduate students. However, it did become apparent that knowledge on these ethical issues is crucial in order to ensure they do not hinder the field of genetic counseling. It is predicted that in order to have the best outcome for the field of genetic counseling, genetic counselors themselves need to draw the ethical boundaries for the issues studied.
ContributorsBarker, Samantha (Author) / Amdam, Gro (Thesis director) / Bang, Christofer (Committee member) / Wang, Ying (Committee member) / Barrett, The Honors College (Contributor)
Created2016-05