Now showing items 12051-12070 of 19159

    • L'Acquisition de la Temporalité Passé Chez les Apprenants du Franҫais 13

      Ayoun, Dalila; Soria, Andra Kristen (The University of Arizona., 2014)
    • La Graduación (The Graduation)

      Skyler, Lisanne; Gomez, Rafael A (The University of Arizona., 2014)
    • LA IDENTIDAD DE LA FRONTERA: COMO SE PRESENTA A TRAVES DE LA LITERATURA CHICANA

      Mitchell, Mia Lael (The University of Arizona., 2009-05)
    • La Industria Minera en la Region Sonora-Arizona: Analysis y Recomendaciones para un Desarrollo Integral

      Salas Piza, G.A.; Nations, J.D.; Calles Montijo, V.M.; Hinojosa Garcia, H.J.; Phillips, K. (Arizona Geological Survey (Tucson, AZ), 1997)
    • La Llorona in Southern Arizona

      Leddy, Betty (Mexican American Studies & Research Center, The University of Arizona (Tucson, AZ), 1988)
    • La Représentation du Travail Infirmier Psychitrique Dans le Récit de Gisèle Pineau. Folie, Aller Simple (2010). Suivie des Réflexions d'Une Ètudiante Infirmière

      Bermudez, Krystal Sarabia (The University of Arizona., 2014)
      In Folie, aller simple: Journée ordinaire d’une infirmière (2010), Gisèle Pineau describes a typical day in a psychiatric hospital and, more generally, the work of a nurse in charge of mentally ill patients. The first part of my analysis uses studies by Bender, Duley, Fresney and Perrin to review the evolution and gradual professionalization of nursing in France as well as the often stereotypical representation of nursing (angel, doctor’s aide, « piqueuse », sex-symbol…) in the media. The second part discusses Gisèle Pineau’s representation of her experience - several stories that go beyond case studies, their recurrent themes and motifs (nursing as heroism, multidisciplinarity, risks and dangers, sexist and racist violence) - and how it combines her sustained passions for writing and nursing. The last part focuses on my own reasons, as a student nurse at the University of Arizona, for choosing this profession; it compares the (briefer) personal experiences that I had during my clinical rotations in a psychiatric ward with those of Pineau’s, as a way to reflect on and prepare for the nursing profession.
    • La Sangre de la Tierra: The Good, the Bad, and the Ugly of Foreign Direct Investment in Peru

      Schwartzman, Kathleen; Cooke, Alexandra Danielle (The University of Arizona., 2013)
      This thesis analyzes the potential connection between foreign direct investment (FDI) into the Peruvian mining sector and development outcomes over the past thirty years (1980-2012). This research presents the economic and political background for the period before analyzing trends over time and by bivariate analysis with FDI as the independent variable and development indicators as the dependent variables. Development indicators were defined as poverty rates, gross savings rates, health expenditure, and malnutrition with analysis occurring at the national level and at specific departments (Ancash, Arequipa, Cajamarca, La Libertad, Moquegua, Puno, and Tacna); canon minero, a specific tax on mining profits for regional use, was substituted for FDI at the department level. Trends over time were discussed. Bivariate analysis yielded none or weak correlation between indicators and FDI. Analysis discussed the potential causes for patterns referencing neoliberal policies such as privatization and decentralization that altered the system structure and government support for in healthcare and poverty measures. Poor regulatory measures, mismanagement at regional levels, and the growing influence of multinational mining firms have altered the landscape and power dynamics. The recent shift in mineral prices and environmental concerns from social protests was also discussed along with potential solutions for improvement.
    • 'Lab on a Chip' Detects Human and Agricultural Pathogens

      McGinley, Susan (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010-05)
    • Label‐free Microscopic Assessment of Glioblastoma Biopsy Specimens Prior to Biobanking

      Zehri, Aqib; The University of Arizona College of Medicine - Phoenix; Preul, Mark (The University of Arizona., 2016-04)
      Introduction: Glioblastoma is the most common primary brain tumor with a median 12‐ to 15‐ month patient survival. Improving patient survival involves better understanding the biological mechanisms of glioblastoma tumorigenesis and seeking targeted molecular therapies. Central to furthering these advances is the collection and storage of surgical biopsies (biobanking) for research. We addressed an imaging modality, confocal reflectance microscopy (CRM), for safely screening glioblastoma biopsy samples prior to biobanking to increase the quality of tissue provided for research and clinical trials. We hypothesize that CRM is a safe and effective method for screening specimens prior to biobanking. Methods: Intracranial implantation of human glioma cells was performed to create glioblastoma xenografts. Rodents xenografts were anesthetized to collect whole brain specimens, which were sectioned into tumor containing slices. One set of slices were incubated with DAPI and imaged. A coefficient of determination analysis was then used to compare cells identified with CRM to cells labeled with DAPI. The other set of slices were imaged using CRM at various time points and subsequently frozen for later analysis of DNA, RNA, and protein integrity. We subsequently imaged human glioma biopsies with CRM to determine cellularity and necrosis. Results: CRM provides definitive contrast between cell nuclei, cytoplasm, and extracellular tissue to help identify tumor regions, margins, and acellular regions of animal glioblastoma specimens without altering DNA, RNA, or protein expression of imaged tissue. When imaging fresh human biopsy samples, CRM can differentiate a cellular glioblastoma biopsy from a necrotic biopsy. Conclusion: These data illustrate CRM’s potential for rapidly and safely screening clinical biopsy samples prior to biobanking, which demonstrates its potential as an effective screening technique that can improve the quality of tissue biobanked for patients with glioblastoma.
    • Labor Requirements for Vegetable Crops in Arizona

      Pawson, Walter (College of Agriculture, University of Arizona (Tucson, AZ), 1965-08)
    • Laboratories Conducting Soil, Plant, Feed, or Water Testing

      Schalau, Jeff W.; Univ Arizona, Coll Agr & Life Sci (College of Agriculture, University of Arizona (Tucson, AZ), 2016-09)
      This publication lists laboratories that provide soil, plant, feed, and water testing within the state of Arizona. Revised September 2016.
    • Laboratories Conducting Soil, Plant, Feed, or Water Testing

      Schalau, Jeff; Plant Sciences, School of (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010-05)
      This sheet contains the mailing information for the labs that conduct soil, plant, feed or water testing.
    • Laboratory and Field Development of Asphalt-Rubber for Use as a Waterproof Membrane

      Frobel, R. K.; Jimenez, R. A.; Cluff, C. B.; Water Resources Research Center; Water Resources Research Center; Water Resources Research Center (Arizona Department of Transportation, Highways Division (Phoenix, AZ), 1977-05)
      The research has been directed toward obtaining information on some of the physical properties of various asphalt- rubber (A-R) mixes as related to waterproof membrane applications. In particular, three rubber particle size distributions and three asphalt-rubber spread quantities were investigated. Laboratory testing utilized for physical property determination included thin film permeability, water absorption (ASTM D570-72), Water Vapor Transmission (ASTM E96-72, procedure BW), ductility (ASTM D113-74), Tensile-Toughness, viscosity and slope stability. The results of the study showed that the A-R as an integral membrane is relatively impermeable. The addition of the rubber does not affect the permeability of an otherwise homogeneous asphalt film. Physical property values of asphalt that are increased when rubber is added include water absorption, slope stability, toughness and viscosity. Those that exhibit lower physical property values include ductility and slope/flow characteristics. Installation of experimental field plots provided additional positive information on the waterproofing characteristics of the A-R and also helped develop field procedures on A-R application to a prepared subgrade.
    • Laboratory Dust Generator for the Fractionation of Particulate Matter Derived from Mine Tailings

      Saez, A. Eduardo; Gonzales, Patricia (The University of Arizona., 2013)
    • Laboratory Evaluation of Eleven Image Intensifiers

      Cromwell, Richard H.; Dyvig, Ronald R. (Optical Sciences Center, University of Arizona (Tucson, Arizona), 1973-08)
      A number of laboratory tests have been carried out at the image tube laboratory of the Optical Sciences Center on 11 selected image intensifiers in order to compare and evaluate their performance. The electrostatically focused tubes tested are as follows: ITT F-4708 (1 stage), two samples of a Varo 8605 (1 stage), Varo 8605DC (1 stage), ITT F -4724 (3 stages), RCA 8606 (3 stages), and Varo 8606 (3 stages). The magnetically focused tubes are EEV P829D (5 dynodes), ITT F-4089 (1 stage), RCA C33011 (2 stages), and RCA C70021AEP2 (3 stages). The tests included measurements of limiting resolution (of the intensifiers directly and of photographs obtained with the intensifiers), square -wave response, geometrical distortion, shear characteristics in fiber-optic faceplates, photographic speed gain, uniformity of response, light- induced background, dark emission, and detective quantum efficiency (DQE) of intensifier -photographic emulsion combinations. The most significant result of the tests is that a comparison among tubes with a similar number of stages (or gain) showed that the magnetically focused intensifiers were generally superior to the electrostatically focused intensifiers in resolving power, geometrical distortion, and uniformity of response. However, the electrostatically focused tubes exhibited only about one fifth the light- induced background of the magnetic tubes. Also, a mean relationship was found between the limiting resolution of the intensifier output image and the limiting resolution that is recorded on a photograph of the intensifier. Other particularly notable results include (1) the causes and characteristics of several different types of response nonuniformities, (2) the identification of sources of light -induced background, (3) the photographic speed gain required of an intensifier to obtain the highest peak DQE possible and also that required to make the system behave as a "single- photon event" detector, (4) the identification of some especially undesirable characteristics of a potassium chloride transmission secondary emission (TSE) dynode intensifier (EEV P829D), and (5) the performance of three relay lenses for intensifiers.
    • Laboratory Studies of Cotton Insects and Their Natural Enemies

      Butler, George D. Jr. (College of Agriculture, University of Arizona (Tucson, AZ), 1965-02)
    • Laboratory Tests Designed to Improve Cotton Planting Seed Quality

      McDaniel, Robert G.; Silvertooth, Jeff; Bantlin, Marguerite (College of Agriculture, University of Arizona (Tucson, AZ), 1991)
      A number of representative seed lots of both upland and Pima cotton cultivars and experimental strains have been evaluated utilizing two instruments which measure relative seed coat strength. Seed coat strength was found to have a strong genetic component of determination, with relatively minor influence of environment and year of production being observed Greater seed coat strengths should contribute to the relative resistance to seed damage and cracking during picking ginning and conditioning operations. It may be possible to incorporate this trait into cotton cultivars by mass selection techniques.
    • Labors for a Territorial Government

      Fish, Joseph (Arizona State Historian (Phoenix, AZ), 1928-04)