5,266 research outputs found

    The Virginia Sickle Cell Anemia Awareness Program: Education, Screening, and Counseling

    Get PDF
    In 1968, a program of screening for sickle trait carriers was begun as part of the work of the Hematology Division, Department of Medicine, at the Medical College of Virginia. It was felt that sickle cell anemia was more of a public health problem than was generally recognized, and in addition to instituting screening and education programs, data were collected to document the relative neglect of the problem

    The 3XMM/SDSS Stripe 82 Galaxy Cluster Survey: Cluster catalogue and discovery of two merging cluster candidates

    Full text link
    We present a galaxy cluster survey based on XMM-Newton observations that are located in Stripe 82 of the Sloan Digital Sky Survey (SDSS). The survey covers an area of 11.25 deg2^2. The X-ray cluster candidates were selected as serendipitously extended detected sources from the third XMM-Newton serendipitous source catalogue (3XMM-DR5). A cross-correlation of the candidate list that comprises 94 objects with recently published X-ray and optically selected cluster catalogues provided optical confirmations and redshift estimates for about half of the candidate sample. We present a catalogue of X-ray cluster candidates previously known in X-ray and/or optical bands from the matched catalogues or NED. The catalogue consists of 54 systems with redshift measurements in the range of 0.05-1.19 with a median of 0.36. Of these, 45 clusters have spectroscopic confirmations as stated in the matched catalogues. We spectroscopically confirmed another 6 clusters from the available spectroscopic redshifts in the SDSS-DR12. The cluster catalogue includes 17 newly X-ray discovered clusters, while the remainder were detected in previous XMM-Newton and/or ROSAT cluster surveys. Based on the available redshifts and fluxes given in the 3XMM-DR5 catalogue, we estimated the X-ray luminosities and masses for the cluster sample. We also present the list of the remaining X-ray cluster candidates (40 objects) that have no redshift information yet in the literature. Of these candidates, 25 sources are considered as distant cluster candidates beyond a redshift of 0.6. We also searched for galaxy cluster mergers in our cluster sample and found two strong candidates for newly discovered cluster mergers at redshifts of 0.11 and 0.26. The X-ray and optical properties of these systems are presented.Comment: 17 pages, 12 figures, accepted for publication in A&A, revised version after language editin

    Giant Ringlike Radio Structures Around Galaxy Cluster Abell 3376

    Get PDF
    In the current paradigm of cold dark matter cosmology, large-scale structures are assembling through hierarchical clustering of matter. In this process, an important role is played by megaparsec (Mpc)-scale cosmic shock waves, arising in gravity-driven supersonic flows of intergalactic matter onto dark matter-dominated collapsing structures such as pancakes, filaments, and clusters of galaxies. Here, we report Very Large Array telescope observations of giant (~2 Mpc by 1.6 Mpc), ring-shaped nonthermal radio-emitting structures, found at the outskirts of the rich cluster of galaxies Abell 3376. These structures may trace the elusive shock waves of cosmological large-scale matter flows, which are energetic enough to power them. These radio sources may also be the acceleration sites where magnetic shocks are possibly boosting cosmic-ray particles with energies of up to 10^18 to 10^19 electron volts.Comment: Published on Science, 3 November 2006. Main paper and Supporting Online Materia

    A Critical Examination of the Phonics and Structural Analysis Skill Development in the SRA Reading Laboratory IIIa

    Get PDF
    The study was made in an effort to tabulate all of the phonics and structural analysis skills presented in the SRA Reading Laboratory IIIa as to the various kinds offered; frequency of use; methods of presentation. Also, extensive research was attempted to ascertain leading reading authorities\u27 opinions on the use of these analyses for secondary students. The purpose of the study was to determine whether the SRA Reading Laboratory IIIa would be the best material to use for the retarded and disabled readers at the secondary level

    David Goodale (1910-1983): A Tribute

    Get PDF
    A brief celebration of the life of freelance Whitman scholar David Goodale, an expert on Whitman and also William Douglas O\u27Conner

    Juvenile Law

    Get PDF

    Mass Tort Claim Processing Facilities: Keys to Success

    Get PDF

    Alien Registration- Gallagher, Florence B. (Wade, Aroostook County)

    Get PDF
    https://digitalmaine.com/alien_docs/32796/thumbnail.jp
    corecore