Now showing items 20876-20895 of 39117

    • K-K AND K-L INNER SHELL VACANCY SHARING DURING HEAVY ION COLLISIONS WITH SOLID AND GAS TARGETS

      Middlesworth, Edward Millard, 1950- (The University of Arizona., 1977)
    • Kaamos Studies

      Alshaibi, Sama R.; Paatos, Karoliina; Shenal, Martina M.; Cerese, Vaden (The University of Arizona., 2018)
      Kaamos Studies is a multi-media thesis project that examines the experience of the darkness that falls with the polar night (kaamos in Finnish) when the sun does not rise and the adaptation to it. In the darkness, there is still an array of different kinds of lights. My focal point is the Kevo Subarctic Research Station at the northernmost tip of Finland where my parents were working as weather attendants from 1976 until 1982. They observed and measured the earth and space weather by multiple devices every three hours, every day and night. I was born there. To create the exhibition installation of Kaamos Studies I have used some of the same devices my parent did, collected material from different kinds of archives and collaborated with weather researchers and institutes in Finland. The exhibition installation consists of four light sculptures of various scale, three videos, one sunshine recorder and The Pocket Book, a handmade artist’s book. This is the written documentation of my thesis exhibition Kaamos Studies for the University of Arizona, School of Art’s Master of Fine Art’s degree.
    • Kai(e)rotic Moments: Resistance and Alternate Futures in Burlesque Performance

      Licona, Adela C.; Coan, Casely Emma; Stryker, Susan; Troutman, Stephanie (The University of Arizona., 2019)
      This dissertation examines the ways performance offers opportunities to resist sexist, racist, homophobic, transphobic, fat phobic, and ableist narratives. Through ethnographic research with the Tucson Libertine League (TLL) burlesque community in Tucson, AZ, I argue that the erotic desire/s of narrative striptease reveal the rhetorical possibility in burlesque performance – its capacity to be politically persuasive. Engaging an intersectional feminist methodology, I use interviews, observation, performance as method, and act analysis to study acts by a heterogenous group of woman-identified performers who identify as lesbian, queer, trans, fat, of color, and/or disabled, and center their performances around these intersectional subjectivities. My inclusion in this community as a performer allowed me to participate and observe from backstage, on stage, and in the audience. I also produced and performed in a 16-act show, “Tucson Libertine League presents: Future Fantasies” as a part of this project. Following Audre Lorde’s characterization of the erotic as a source of personal power and the Ancient Greeks’ depiction of the god Eros as foundational to human existence, I utilize a complex understanding of erotic desire beyond simply the sexual, to its reflection of deeper knowledges and self-determination. The nature of live performance means that burlesque performers have access only to their brief time on stage and the particular audience in front of them in order to utilize burlesque’s rhetorical potential. In response to a paucity of literature at the intersection of desire and kairos, the propitious moment for action, I develop the concept “kaieros:” the interpretation of the erotic (eros) as a kairotic opportunity for rhetorical intervention that signals a potential re/negotiation of meaning around performers’ intersectional subjectivities. The rhetorical encounter of performer-audience interaction during narrative striptease holds the potential to shift conceptualizations about what and whom can be desired, desirable, and desirous, and by whom. This momentary rhetorical potential is made possible by erotic desire’s mutability, its characterization as a fluid entity and experience (for both audience and performer). Desire becomes multivalent and powerful, capable not only of putting bodies and subjectivities in dynamic relationship with one another but also, by extension, of re/negotiating meanings around those bodies and subjectivities. This dissertation reveals two ways in which burlesque performers employ the rhetorical possibility of narrative striptease’s kaierotic exchange: by staging rageful resistance to racism, sexism, homophobia, transphobia, fat phobia, and ableism, thereby recruiting the audience into their protest; and by offering snapshots of potential alternate futures, utopic times and spaces where racism, sexism, homophobia, transphobia, fat phobia, and ableism no longer exist, and where these intersectional subjects are valued and desired. Not only do I underscore performance’s role in rhetorical efforts to re/negotiate narratives around intersectional subjectivities, but I also demonstrate how burlesque performance, specifically, urges more extended study, within the field of rhetoric, of bodies and desire/s as rhetorical actors. Finally, I discuss the ways in which this research reveals the benefits of collaborative projects between artists and academics concerning minoritarian subjects and social transformation.
    • Kaibab mule deer productivity estimates based on ovarian examination

      Pregler, Charles E., 1951- (The University of Arizona., 1974)
    • Kaibab squirrel activities in relation to forest characteristics

      Ratcliff, Thomas D., 1943- (The University of Arizona., 1974)
    • Kangaroo Care as Analgesic for Preterm Infants Undergoing Heel Sticks

      Hay-Roe, Jillian Veronica (The University of Arizona., 2010-05)
      More than half a million infants are born preterm each year in the United States. Preterm infants often undergo many painful procedures starting minutes after birth. A preterm infant may have as many as 10 painful procedures in a 24 hour period. The experience of pain leads to negative physiological responses, creating additional risks for the preterm infants' immediate and long-term health. Research demonstrates that infants are often undertreated for pain. Kangaroo care is a promising, non-pharmacologic analgesic, implemented as skin-to-skin contact between the infant and a caregiver. The purpose of this paper is to review relevant research about the use of kangaroo care as pain management for preterm infants, and to present a proposal for implementing and evaluating a best practice protocol for kangaroo care as an analgesic in a neonatal intensive care unit.
    • Kangaroo Care, Facilitated Tucking and Non-Nutritive Sucking to Reduce Pain in Neonates: A Best Practice Proposal

      Hartley, Kelsey Alexis (The University of Arizona., 2014)
      Increasing survival rates of preterm infants and a greater understanding of the long-term consequences of prematurity and early exposure to pain have generated a greater need for non-pharmacological pain management measures in the neonatal intensive care unit (NICU) setting. These pain management interventions are necessary to decrease the potentially unfavorable consequences of early exposure to pain, and to promote positive long-term outcomes in this 5 population. The purpose of this thesis was to propose a best practice plan for kangaroo care, facilitated tucking and non-nutritive sucking interventions for infants receiving care in the NICU. Synthesis of available research is presented to support the use of these interventions as methods of non-pharmacological pain management, and to formulate policies for implementation in the hospital setting. Policies included in this paper were specifically developed for use in the NICU at St. Joseph's hospital in Tucson, Arizona. Effectiveness of the aforementioned interventions will be evaluated using an informal written questionnaire, distributed to nurses on the targeted unit.
    • Kangaroo Rat Foraging In Proximity to a Colony of Reintroduced Black-Tailed Prairie Dogs

      Koprowski, John L.; Fulgham, Kirsten Marie; Archer, Steven R.; Elfring, Lisa K. (The University of Arizona., 2015)
      A majority of the arid grasslands in the western U.S. have been dramatically altered by anthropogenic influences resulting in degradation and desertification. Within the arid grasslands of North America a guild of burrowing herbivorous rodents that includes kangaroo rats (Dipodomys spp.) and prairie dogs (Cynomys spp.) is often considered integral to arid grassland maintenance. As part of the larger guild of burrowing herbivorous rodents, kangaroo rats are considered to be an important keystone guild whose role as ecosystem engineers and habitat modifiers complements that of prairie dogs. Together these species organize and structure arid grassland ecosystems and the biodiversity therein, by providing a mosaic of microhabitat patches, thus increasing overall heterogeneity. In an area where black-tailed prairie dogs (C. ludovicianus) were reintroduced, I used Giving-up Density (GUD) to assess the indirect effects black-tailed prairie dogs might have on the foraging patterns of resident kangaroo rats (D. spectabilis and D. merriamii). My objective was to compare and contrast kangaroo rat foraging GUD within and along the boundary of a on a recently established black-tailed prairie dog colony with that in the surrounding unmodified native habitat. This enabled assessment of whether black-tailed prairie dogs had an influence on the perceived quality of the habitat by kangaroo rats. Kangaroo rats visited off-colony feeding trays more frequently, and collected a greater mean mass of seed per tray as well. This indicates that the kangaroo rats perceived the area off the prairie dog colony as having a lower foraging cost than on the colony or along the colony edge. I conclude that from the perspective of the seed-eating kangaroo rat, the colony is not viewed as high quality habitat. What impact the reintroduction and management of one keystone species might have on another keystone species deserves additional consideration as we attempt to restore arid grassland ecosystems.
    • A Kantian Account of Human Virtue

      Schmidtz, David; Brown, Christopher Anthony; Schmidtz, David; Smit, Houston; Timmons, Mark (The University of Arizona., 2008)
      There are certain elements of Kant's moral philosophy that I believe no moral theory can afford to ignore. On the other hand, there are others which Kant's theory evidently would be better off without. I will be developing an account of human virtue by defending and exploiting some of Kant's most fertile and sustainable ideas, while arguing against other theses of his, a few of which have come to be regarded as definitive of Kantian Ethics.I begin by showing that we can plausibly interpret Kant's texts on "the good will" and "actions from duty" as presupposing that an agent's moral goodness consists in her aptitude for lawful conduct, that is, her aptitude for living in accord with practical principles valid for all possible agents. I build my basic account of virtue by showing that this aptitude inheres in the possession of certain traits. The cornerstone of virtue, I argue, is the moral commitment: the stable, non-instrumental aim of living lawfully. For, when this commitment prevails in determining an agent's actions, lawful conduct necessarily ensues--which cannot be said of any other commitment or aim. I identify four additional elements of virtue by searching for traits that a perfectly morally committed agent might possess, and which together would guarantee that her moral commitment prevails. These are: moral understanding, strength of will, empirical understanding, and empirical power. And I suggest that when an agent violates a moral requirement, this is always saliently attributable to a lack of one or more of the five proposed elements of virtue.I supplement the basic account of virtue by arguing that the morally committed human agent is rationally required to adopt four further, general aims: the efficient pursuit of her own happiness, the happiness of other agents and non-agents, her own moral perfection, and that of other similarly committed agents. This part of my view differs significantly from Kant's, so I will be largely concerned with critiquing the relevant arguments of his. But the result is still very much a Kantian account, and one that warrants serious consideration in contemporary debates about virtue.
    • KAON-NUCLEON DISPERSION RELATIONS

      Zika, Jeanne Alice, 1941- (The University of Arizona., 1971)
    • KAON-NUCLEON TOTAL CROSS-SECTIONS AT LOW MOMENTUM

      Petersen, Douglas Vernon, 1941- (The University of Arizona., 1970)
    • Kartchner Caverns: Habitat Scale Community Diversity and Function in a Carbonate Cave

      Curry, Joan; Ortiz-Ortiz, Marianyoly; Rich, Virginia; Vedantam, Gayatri; Curry, Joan; Maier, Raina M. (The University of Arizona., 2012)
      This dissertation examines the microbial and functional diversity in Kartchner Caverns, a limestone cave in Arizona, USA. Kartchner is highly oligotrophic due to the lack of photosynthesis and the limited inputs of organic material from the surface. This characteristic poses a challenge for microbial life in the cave. The first objective of this work was to evaluate the bacterial richness, diversity and taxonomic composition of speleothems surfaces within Kartchner Caverns in order to gain insight into the distribution patterns associated with these communities. Secondly, the metabolic strategies used by cave communities to survive harsh cave conditions were investigated based on phylogenetic associations and metagenomics. Both objectives were directed toward answering the questions "who are there?" and "what are they doing?". The 454-pyrotag analysis of the V6 region of the 16S rRNA gene revealed an unexpectedly high bacterial diversity with each speleothem supporting a unique bacterial community profile. A focused study on one room of the cave revealed three community types: Type 1 was dominated by the phylum Proteobacteria; Type 2 by Actinobacteria; and Type 3 by Acidobacteria. Phylogenetic associations of the sequences generated by the 454 sequencing and by a Sanger clone library suggested cave microbial communities are supported by chemoautotrophic activities such as nitrite and iron oxidation. Results from the phylogenetic associations guided the metagenomic analysis which supports the presence of chemoautotrophic activities in the cave. Genes for two complete CO2 fixation mechanisms, the Calvin-Benson-Bashan and the rTCA cycles were identified in the cave metagenome, as well as genes for ammonia and nitrite oxidation. These genes are associated with both Bacteria and Archaea suggesting members of both domains are acting as primary producers in the cave ecosystem. Comparative analysis of cave samples to other environments suggests an overabundance of DNA repair mechanisms which could be potentially used by cave communities to overcome the toxicity due to high concentrations of calcium on the speleothem surfaces. This work provides the first comprehensive analysis of the microbial diversity and potential strategies used by microbial communities to survive under the extreme conditions found in a semi-arid limestone cave environment.
    • Karyometry Identifies A Deviant Phenotype In The Fallopian Tube Epithelium Of Postpartum Subjects And Subject At High Risk Of Ovarian Cancer

      Alberts, David S.; Atluri, Sri Sai Swetha (The University of Arizona., 2019)
      With the highest mortality rate of all gynecologic cancers, ovarian cancer is a deadly reproductive malignancy among women. Previous studies have identified the fallopian tube epithelium to be the site of origin for high grade serous ovarian carcinoma. Survival is high when the cancer is discovered while it is still localized to the site of origin, but it is rarely detected that early due to the late manifestation of symptoms and ineffectiveness of current screening methods. Karyometry is a quantitative histopathology technique that detects chromatin abnormalities at the nuclear level using imaging analysis. This study investigates whether karyometry can detect nuclear abnormalities of fallopian tube epithelium in women carrying the BRCA1 or BRCA2 mutation versus the fallopian tube epithelium of women who are at normal risk of developing ovarian cancer. Fallopian tube tissue from 11 women who were at normal risk, 13 women who carried the BRCA1 or BRCA2 mutation, and 13 postpartum women was analyzed using karyometry. There was a distinct deviation in mean nuclear signatures between the normal and high risk groups and between the normal and postpartum groups. In this preliminary analysis, karyometry detected nuclear abnormalities in the fallopian tube epithelium of high risk women.
    • KARYOTYPES AND EVOLUTION OF THE SPINOSUS GROUP OF LIZARDS IN THE GENUS SCELOPORUS

      Cole, Charles James, 1940- (The University of Arizona., 1969)
    • Karyotypes of selected bats (order Chiroptera)

      Osborne, Jerry Lee, 1940- (The University of Arizona., 1965)
    • Karyotypic analysis of the gobiid fish genus Quietula Jordan and Evermann

      Cook, Peter Calvert, 1950- (The University of Arizona., 1976)
    • Kaska language socialization, acquisition and shift

      Hill, Jane H.; Meek, Barbra Allyn (The University of Arizona., 2001)
      Language maintenance and re-creation are burning issues for many indigenous communities around the world. Child language acquisition and socialization are processes integral to understanding these issues. In order to design realistic language recreation projects, research must first address the many factors impacting the acquisition and maintenance of a language by children. This dissertation shows how different contexts, historical, environmental, interactional, relate to Kaska language socialization and acquisition. Kaska is a Northern Athabaskan language spoken in the Yukon Territory (Canada). In particular, it shows how the shift from Kaska being a language of everyday communication to one associated with authority and respect constrains children's Kaska production. To examine this shift, a combination of linguistic and ethnographic methods are used. Linguistic description identifies the grammatical structures of the target language. These are the structures that children need to acquire in order to be able to understand and speak the Kaska language. Additionally, grammatical description of adult utterances reveals that children are being exposed to a full Kaska grammar. This suggests that children may understand more Kaska than they produce. Ethnographic methods identify the social constraints on speaking the Kaska language and help establish links between interaction patterns and ideological constructs. They reveal that language choice is related to a speaker's age and social position. Older interlocutors may choose to speak Kaska while younger interlocutors typically choose English. Children have incorporated this pattern into their playgroups. By producing a Kaska utterance, a child may become leader of the playgroup. He or she uses Kaska to attain this social position. Speaking Kaska is also related to the concept of respect. Narratives on socialization emphasize this by instructing children on how to behave respectfully. While children are exposed to an adult Kaska grammar, they predominantly speak English. This pattern is not just the result of past assimilationist practices; it is part of Kaska language socialization.
    • KATE CHOPIN AND THE SEARCH FOR A CODE OF BEHAVIOR

      Koloski, Bernard, 1937- (The University of Arizona., 1972)