57 research outputs found

    The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe

    Get PDF
    The preponderance of matter over antimatter in the early Universe, the dynamics of the supernova bursts that produced the heavy elements necessary for life and whether protons eventually decay --- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our Universe, its current state and its eventual fate. The Long-Baseline Neutrino Experiment (LBNE) represents an extensively developed plan for a world-class experiment dedicated to addressing these questions. LBNE is conceived around three central components: (1) a new, high-intensity neutrino source generated from a megawatt-class proton accelerator at Fermi National Accelerator Laboratory, (2) a near neutrino detector just downstream of the source, and (3) a massive liquid argon time-projection chamber deployed as a far detector deep underground at the Sanford Underground Research Facility. This facility, located at the site of the former Homestake Mine in Lead, South Dakota, is approximately 1,300 km from the neutrino source at Fermilab -- a distance (baseline) that delivers optimal sensitivity to neutrino charge-parity symmetry violation and mass ordering effects. This ambitious yet cost-effective design incorporates scalability and flexibility and can accommodate a variety of upgrades and contributions. With its exceptional combination of experimental configuration, technical capabilities, and potential for transformative discoveries, LBNE promises to be a vital facility for the field of particle physics worldwide, providing physicists from around the globe with opportunities to collaborate in a twenty to thirty year program of exciting science. In this document we provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess.Comment: Major update of previous version. This is the reference document for LBNE science program and current status. Chapters 1, 3, and 9 provide a comprehensive overview of LBNE's scientific objectives, its place in the landscape of neutrino physics worldwide, the technologies it will incorporate and the capabilities it will possess. 288 pages, 116 figure

    Arsenic in Illinois ground water : community and private supplies /

    No full text
    Shipping list no.: 2003-0261-P."July 2003"--Cover.Title from cover caption.Includes bibliographical references (p. 12).Mode of access: Internet

    Establishing an expert mental health consumer research group:Perspectives of nonconsumer researchers

    Get PDF
    PURPOSE: To explore the views and opinions of nonconsumer researchers to the concept of an Expert Consumer Researcher Group. DESIGN AND METHODS: Qualitative exploratory involving individual interviews with nonconsumer mental health researchers experienced in working collaboratively with consumer researchers. Data were analyzed thematically. FINDINGS: Participants viewed the concept positively, albeit with caution. Perceived advantages included: greater visibility and enhanced access; collegiality; sharing and creating expertise; broader acceptance; making it mandatory; and structure and location. Participants were concerned about potential tokenism and implementation barriers. PRACTICE IMPLICATIONS: Consumer involvement enhances the quality and relevance of research, potentially impacting clinical practice

    Sense of community and the perception of the socio-physical environment: a comparison between urban centers of different sizes across Europe

    No full text
    Embedded in the strand of research on the community determinants of sense of community (SoC), the study was designed to verify whether: (1) the size of the urban context was inversely related to residents’ SoC; (2) the size of the urban centers affected some of the correlates of SoC, namely the perception of social support, the residential environmental satisfaction, the residential social climate satisfaction, and the perceived reliability of local services in the areas of health, transport, administration, education, and security. The sample comprised 1254 individuals residing in a variety of towns/cities of different sizes in Southern and Northern Europe. Analyses revealed that the larger the town/city, the lower the SoC expressed by the inhabitants. They also showed that the residential environmental and social climate satisfaction, as well as perceived social support, were associated with an increase in SoC, but that there were variations in the patterns of associations according to towns/cities’ size. © 2017 Springer Science+Business Media Dordrech

    One-Year Duration of Immunity Induced by Vaccination with a Canine Lyme Disease Bacterin▿

    No full text
    Laboratory-reared beagles were vaccinated with a placebo or a bacterin comprised of Borrelia burgdorferi S-1-10 and ospA-negative/ospB-negative B. burgdorferi 50772 and challenged after 1 year with B. burgdorferi-infected Ixodes scapularis ticks. For the placebo recipients, spirochetes were recovered from 9 (60%) skin biopsy specimens collected after 1 month, and the organisms persisted in the skin thereafter. Ten (67%) dogs also developed joint infection (3 dogs), lameness or synovitis (7 dogs), or B. burgdorferi-specific antibodies (8 dogs). For the vaccine recipients, spirochetes were recovered from 6 (40%) skin biopsy specimens collected after 1 month. However, subsequent biopsy specimens were negative, and the dogs failed to develop joint infection (P = 0.224), lameness/synovitis (P = 0.006), or Lyme disease-specific antibody responses (P = 0.002). The bacterin provided a high level of protection for 1 year after immunization, and the addition of the OspC-producing B. burgdorferi 50772 provided enhanced protection

    Bacterin That Induces Anti-OspA and Anti-OspC Borreliacidal Antibodies Provides a High Level of Protection against Canine Lyme Disease▿

    No full text
    Groups of 15 laboratory-bred beagles were vaccinated and boosted with either a placebo or adjuvanted bivalent bacterin comprised of a traditional Borrelia burgdorferi strain and a unique ospA- and ospB-negative B. burgdorferi strain that expressed high levels of OspC and then challenged with B. burgdorferi-infected Ixodes scapularis ticks. The vaccinated dogs produced high titers of anti-OspA and anti-OspC borreliacidal antibodies, including borreliacidal antibodies specific for an epitope within the last seven amino acids at the OspC carboxy terminus (termed OspC7) that was conserved among pathogenic Borrelia genospecies. In addition, spirochetes were eliminated from the infected ticks that fed on the bacterin recipients, B. burgdorferi was not isolated from the skin or joints, and antibody responses associated specifically with canine infection with B. burgdorferi were not produced. In contrast, B. burgdorferi was recovered from engorged ticks that fed on 13 (87%) placebo-vaccinated dogs (P < 0.0001), skin biopsy specimens from 14 (93%) dogs (P < 0.0001), and joint tissue specimens from 8 (53%) dogs (P = 0.0022). In addition, 14 (93%) dogs developed specific antibody responses against B. burgdorferi proteins, including 11 (73%) with C6 peptide antibodies (P < 0.0001). Moreover, 10 (67%) dogs developed Lyme disease-associated joint abnormalities (P < 0.0001), including 4 (27%) dogs that developed joint stiffness or lameness and 6 (40%) that developed chronic joint inflammation (synovitis). The results therefore confirmed that the bacterin provided a high level of protection against Lyme disease shortly after immunization

    The T2K experiment

    Get PDF
    The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle θ13 by observing νe appearance in a νμ beam. It also aims to make a precision measurement of the known oscillation parameters, and sin22θ23, via νμ disappearance studies. Other goals of the experiment include various neutrino cross-section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem
    corecore