Now showing items 3064-3083 of 39116

    • Babocomari Indian village located on the Babocomari River; an archaeological site in southeastern Arizona

      Di Peso, Charles C. (Charles Corradino); Getty, Harry T. (The University of Arizona., 1950)
    • "Baby Veronica" & The Indian Child Welfare Act (ICWA): A Public's Perception

      Luna Firebaugh, Eileen; Ross-Mulkey, Mikhelle Lynn; Luna Firebaugh, Eileen; Tippeconnic-Fox, Mary Jo; Oberly, Stacey (The University of Arizona., 2015)
      What has become known to the world as the Baby Veronica case (2009-2013) involves several parties including the biological father, Dusten Brown, who is a Cherokee citizen, the Non-Native adoptive parents, the Capobiancos, the Cherokee Nation, and most importantly the baby who is now a child getting ready to start school, Veronica. It is a complex child custody case, but one that is well supported in Federal Indian Law and Policy with the Indian Child Welfare Act (ICWA) of 1978 and Mississippi Band of Choctaw Indians v. Holyfields (1989). In the beginning of the Adoptive Couple v. Baby Girl et al case (or famously known simply as the Baby Veronica case), the South Carolina Family Court and Supreme Court used the legalese of the ICWA to uphold the biological father's parental right to stop the adoption of his child. However, in an interesting turn of events the case was then taken up by the United States (U.S.) Supreme Court where it was ruled that the biological father was not an Indian parent as defined by ICWA (before the child was placed with the prospective adoptive couple there was no preexisting custody of the newborn child by the father) and stating that state law applied and not ICWA in this case and since the father was not married to the birth mother and had not paid child support he was not deemed a parent by South Carolina’s definition of the word. The most recent decision came from the South Carolina court stating that Baby Veronica, after two years of living with her father, must be returned to the prospective adoptive parents. Most everyone out there felt sadness for the prospective adoptive couple who had loved and provided for this child for two years, but all adoptive/foster parents know there is always a chance for the natural parents to object to the placement (it is called legal risk in child welfare). Each state sets their own laws on how long the natural parents have to change their mind, but in this case the biological father was not even aware that the biological mother was planning on giving the child up for adoption. Once he discovered the adoption, four months after the child was born and had been living with the Capobiancos since birth, he filed a petition to stop it and regain custody. This action would lead to a four year long custody battle. While it is important to look at all the facts and the history of the ICWA (and now the future of the ICWA) this dissertation focuses mostly on the public perception of the case. This case has received a fair amount of media coverage throughout the United States including a one-hour episode on Dr. Phil which aired on CBS. It is not often that something happening in Indian County makes it to mainstream media/attention, but when it does there is usually a great deal of misunderstanding on the issue. This is also true for most of the coverage and public responses from the media. This time around it was also true of the U.S. Supreme Court who focused too much attention on Dusten Brown’s blood quantum and not his cultural upbringing. Further the majority of the Supreme Court Justices held that the problems that existed pre-ICWA are not really a problem anymore which is reverberated through the public's perception. It is the intention of this dissertation to follow and analyze the media and the public of this particular case and the ICWA in general through the theories of framing and Red Power. In the social sciences framing is the social construction of a social phenomenon (the Baby Veronica case) by mass media sources (newspapers and television shows), political or social movements, political leaders (Chief John Baker of the Cherokee Nation), or other actors and organizations (National Indian Child Welfare Association). The individual's perception of the facts and meaning attributed to words or phrases will be influenced by some or all of these entities. A frame creates rhetoric in a way that can either encourage or discourage certain interpretations. Stereotypes are one example of framing and are seen in the Baby Veronica case especially as people try to define what it means to be Cherokee. Red Power can be seen as a frame, but is also an American Indian theory that links ethnic pride and political activism to a resurgence of Indian identity. There was a lot of ethnic pride and political activism that took place in favor of Dusten Brown retaining custody of his daughter which no doubt heightened the Cherokee Indian identity, but unfortunately in this case this resurgence would not be enough to keep Veronica, now at the age of four, living with her biological father. However, this dissertation will conclude with some possible recommendations for the Indian Child Welfare Act and the future of American Indian child custody cases.
    • Baby Your Heart: Neonatal Congenital Heart Defects

      Cohen, Zoe; Joyce, Mackenzie Reed (The University of Arizona., 2014)
    • Baby's Got Heart: Congenital Heart Issues in Newborns

      Cohen, Zoe; Schwartfeger, Stephen James (The University of Arizona., 2015)
      Pediatric congenital heart defects primarily occur during fetal heart embryological development. This purpose of this thesis was to provide a comprehensive review of the basic cardiovascular physiology, focusing on three separate components - the heart, the blood vessels, and the blood - and a current look at three common occurring conditions. The congenital heart defects are reviewed with an anatomical overview of the condition, patient presentation, current surgical repairs, and life expectancies following successful repair. Repairs of tetralogy of fallot report mortality rates below 3%, compared to a 50% mortality rate prior to development of surgical repairs (Apitz). Transposition of the great arteries repaired with the relatively new Nikaidoh procedure show 95% late survivability rates (Martins). For truncus arteriosus, currently 83% of patients survive past 15 years (Soriano). Continuing research and refinement of existing surgical techniques are expected to increase survivorship from this congenital heart defects. To help families and patients understand that congenital condition their loved one may have, a very easy to understand picture book was created. This can hopefully inspire further improvements in family resources to aid in comprehension of congenital heart diseases.
    • Bach editions; a comparative study

      Cole, Walton Smith, 1921- (The University of Arizona., 1950)
    • Bach Transcription for Marimba: Creating an Authentic Performance Edition of Johann Sebastian Bach's Sonata no. 1 for Violin Solo, BWV 1001, and Sonata no. 2: Grave, BWV 1003, Using Guitar and Lute Transcriptions as Models

      Weinberg, Norman; Bastian, Darren Bruce; Weinberg, Norman; Cook, Gary; Haskell, Jeffrey; Decker, Pamela (The University of Arizona., 2009)
      Musicians have transcribed and adapted Johann Sebastian Bach's Sonatas and Partitas for Violin Solo, BWV 1001-1006, since Bach penned the works around the year 1720. Bach, himself, transcribed much of the material, adapting it for organ, harpsichord, lute, or even for his sinfonias and cantatas. It was also common for performers of the time to personalize these pieces with ornamentation, improvisation, dynamics, rhythmic interpretation, and in some cases, changes in pitch material.It is in this spirit that the author introduces marimba performance editions of Bach's Sonata no. 1 for Violin Solo, BWV 1001, and Sonata no. 2: Grave, BWV 1003, based on performances and transcriptions by guitarists and lutanists. The guitar and lute were selected as models due to their similarities to the marimba as well as the abundant resources that guitarists and lutanists have provided regarding Bach's unaccompanied string music. Their transcriptions and performances frequently include adaptations to fit their instruments' polyphonic abilities and sound characteristics. A similar approach is likewise suitable for the marimba. Thus, the present study includes an overview of Baroque performance practice as it relates to plucked-string instruments, analysis of published lute and guitar transcriptions of Bach's unaccompanied string music, and transcriptions and analysis of lute and guitar audio recordings. The plucked-string artists and scholars' approach is then assimilated into an authentic marimba performance edition of these works.
    • Background and Research on Copper Alloys as an Antimicrobial Surface and the CusB protein of the Copper-Transporting Efflux System CusCFBA

      Andrade, Cassandra Jo (The University of Arizona., 2010-05)
      Bactericidal properties of copper surfaces have been investigated in search of selfsanitizing materials in food and healthcare industries. However, bacteria in these environments are rapidly acquiring antibiotic and heavy metal resistance, which is thought to be a co-selection process (Baker-Austin, 2006). Copper-resistant strains of Escherichia coli and Enterococcus faecium isolated from pigs fed copper sulfate were examined (Hasman, 2002). Survival of strains was tested by timed incubation on onesquare- inch copper alloys with varying degrees of moisture during inoculation of the surfaces. Results showed rapid killing of E. coli and E. faecium copper-resistant strains when samples were spread in a thin layer on alloys with 85 % or greater copper content. E. coli strains had short survival rates under dry conditions while E. faecium strains were less affected. Dry or wet inoculations had no effect on the survival rates on stainless steel, since strains survived equally and no die-off was seen. Re-inoculation with E. coli on the alloys every 3 hours over a 24-hour period showed no CFUs remaining at each time point tested while bacteria survived without reduction of CFUs on the stainless steel controls after 24 hours. Results indicate that the bactericidal properties of metallic copper surfaces can be effective in killing copper-resistant strains of E. coli and E. faecium.
    • Background characteristics of four Latin American armed forces and modernization

      Mengel, Russel William, 1941- (The University of Arizona., 1971)
    • Background Characterization In The 4top Search At The ATLAS Experiment

      Varnes, Erich; Stoken, Alex Harrison (The University of Arizona., 2019)
      A data-driven approach is taken to estimate the background and find optimal cuts for the four-top-quark search at the ATLAS Experiment for √s=13 TeV. Using 140fb-1 of data generated from the Large Hadron Collider from 2015 through 2018, the Monte Carlo simulated background is reweighted by a function of HTall to match the distribution of data. This correction function is then used to build MC signal and background distributions. To ding the best region to search for the four-top signal, the significance of the signal to background is measured for various lower bounds, and the optimal selection criteria of Nbjets>2 jets, Njets>9 jets, HTall>660000 MeV, and jetpt>60000 MeV are chosen. These cuts produce a significance of 1.0077 and yield 60.22 expected signal events and 3511 expected background events in the data sample.
    • The background of a student union food service director

      Dudczak, Michael Stanley, 1936- (The University of Arizona., 1968)
    • Background of Lizardi's El Periquillo Sarniento

      Christianson, Carl Trygve, 1906- (The University of Arizona., 1941)
    • Background to violence: Colombia 1930-1948

      Derryberry, Donald Ray, 1948- (The University of Arizona., 1972)
    • Backing into decisions: A study of thresholds in decision-making

      Gilliland, Stephen; Mertens, Daniel P. (The University of Arizona., 2003)
      Strategic decisions involving mergers and acquisitions often hinge on one or two critical evaluations. Similarly, when hiring a new manager, potential candidates are often rejected if they are lacking on a critical dimension. In my dissertation, I examined the way in which these critical dimensions are used to screen decision alternatives. Specifically, I am examining the nature of Image Theory's violation and rejection thresholds (the compatibility test) in the screening and elimination of undesirable decision options. In contrast to traditional decision theory, which focuses on choice (i.e., maximization of expected value), recent studies suggest that pre-choice screening of options may account for the greater part of one's decision activities and that choice serves merely to select the best of the options that survive screening. The point of the present research is to explore the variables that influence decision makers' appraisal of option compatibility. For example, I determined one such variable as the "killer variable", which is a feature of an option that is extreme in nature (wholly unacceptable or acceptable) to the decision maker. Its inclusion, regardless of the attractiveness of the rest of the option's features, counteracts usual decisions. My research also determined that individual features have the ability to effect the rejection, as well as the violation, threshold. My research tests this and similar hypotheses about screening.
    • Backside charging of CCDs

      Lesser, Michael P.; Iyer, Venkatraman, 1967- (The University of Arizona., 1997)
      Backside illuminated thinned CCDs have the highest response in the UV and blue spectral region. Their use in detectors is limited due to the instability of the CCD. A low temperature oxide nearly 30 Å thick is grown on the acid thinned backside to tie up dangling bonds. The oxide carries fixed positive charges that attract and trap photogenerated electrons. A permanent and stable backside charging procedure is necessary to create a negative bias that will drive electrons to the frontside collection wells. We have shown chemisorption charging to be a novel method to permanently charge CCDs. The catalytic nature of certain metals are exploited to chemisorb oxygen as negative atomic species at the metal/oxide interface. Charging is shown to occur by depositing a thin film 10 Å of platinum on the backside. No tunneling occurs because of the thick oxide. The Passivated Platinum Film (PPtF) which utilizes a hafnium oxide antireflection coating to passivate the platinum is an effective process, but it is sensitive to the environment and discharges quickly upon hydrogen exposure. A silver catalytic coating is shown to be far superior to other charging techniques. Silver irreversibly chemisorbs oxygen and hydrogen is not dissociatively adsorbed except at temperatures < 100°K. High quantum efficiencies have been recorded for the UV-blue ranges. A slight drop is seen at cold temperatures due to interaction of water with oxygen to form hydroxyl ions. No change in QE is seen upon exposure to hydrogen or during outgassing. Silver is also one of the most transparent metals and easily deposited by evaporation. We therefore have developed a charging process which is nearly ideal for CCD imaging.
    • Backwards and forwards: Behavioral and neurophysiological investigations into dependency processing

      Forster, Kenneth I.; Nicol, Janet L.; Witzel, Jeffrey D.; Forster, Kenneth I.; Nicol, Janet L.; Allen, John J.B.; Badecker, William; Garrett, Merrill (The University of Arizona., 2010)
      This dissertation examines the processing of sentences involving long-distance linguistic dependencies, or sentences containing elements that must be linked across intervening words and phrases. Specifically, both behavioral (self-paced reading and eye tracking) and neurophysiological (electroencephalography) methods were used (a) to evaluate the relative importance of backward- and forward-looking dependency satisfaction processes in the comprehension of sentences involving wh-dependencies and (b) to determine the extent to which common neurocognitive mechanisms are involved the processing of wh- and anaphoric dependencies. With respect to the first issue, both behavioral andneurophysiological results indicated a core role for forward-looking, expectancy-based processes in the comprehension of wh-dependency sentences. Regarding the latter issue, despite considerable overlap in the reading patterns associated with wh-dependencies and (at least some types of) anaphora, the neurophysiological responses related to these dependency types indicated that their processing draws on distinct neurocognitive mechanisms.
    • Backwash: expansion relationships in filter beds

      Ruggles, Gordon Charles, 1943- (The University of Arizona., 1968)
    • Backyard Bedsides: An Exploration of the Loss of Childhood Innocence

      Starbuck, Nicole Sari (The University of Arizona., 2012-05)
      Backyard Bedsides is a series of paintings that explore the loss of innocence associated with childhood abuse and premature sexual discovery. The work focuses on the psychological and emotional repercussions of such events on prepubescent behavior and adolescent development. The images reference composite photographs, scientific studies, statistics, testimonials, and personal experience. The paintings also examine how color, composition, and context can be used to express feelings of isolation, confusion, and conflict. In this way, the paintings depict not realistic space, but psychological space. They provide a glimpse into the mind of the abused.
    • Bacteria-Based Molecular Assay Detection System (B-Mad)

      Hoying,Jay; Dion, Greg; (The University of Arizona., 2005)
      Bacteria possess natural mechanisms allowing them to adapt to the environment and communicate with each other, processing large amounts of information in parallel. Cyanobacteria survive in a variety of environments and respond to light. Vibrio harveyi, a marine bacteria, and Pseudomonas aureofaciens, a wheat bacteria, communicate using small molecules; V. harveyi bioluminesces in response to an inter-species signaling molecule, while P. aureofaciens produces phenazine in response to its intra-species signaling molecule. These inherent signaling mechanisms can be engineered to create rapid, specific, modular Bacteria-Based Molecular Assay Detection (B-MAD) systems. ABMAD system designed to detect the human pathogen Clostridium perfringens serves as proof of concept for completely biological information processing units. The B-MAD system consists of three engineered cyanobacteria cells used in combination to detect Clostridium perfringens, a causative agent in gas gangrene, food poisoning and antibioticassociated diarrhea. The B-MAD system is activated by blue/UV-A light and responds to AI-2, a small molecule produced by C. perfringens and perfringolysin 0, a C. perfringens pore-forming toxin. It is possible, using the yellow fluorescence and bioluminescence outputs from the B-MAD system, to unambiguously detect C. perfringens. The design of the B-MAD system as well as the fabrication of components for the Blue Light Converter are reported.