Now showing items 670-689 of 895

  • The Q/U imaging experiment instrument 

    Biscoff, C.; Brizius, A.; Zwart, J.; Buder, I.; Chinone, Y.; Cleary, K.; Dumoulin, R.N.; Kusaka, A.; Monsalve, R.; Naess, S.K.; Newburgh, L.B.; Nixon, G.; Reeves, R.; Smith, K.M.; Vanderlinde, K.; Wehus, I.K.; Bogdan, M.; Bustos, R.; Church, S.E.; Davis, Robert; Dickenson, C.; Eriksen, H.K.; Gaier, T.; Gundersen, J.O.; Hasegawa, M.; Hazumi, M.; Holler, C.; Huffenberger, K.M.; Imbriale, W.A.; Ishidoshiro, K.; Jones, M.E.; Kangaslahti, P.; Kapner, D.J.; Lawrence, C.R.; Leitch, E.M.; Limon, M.; McMahon, J.J.; Miller, A.D.; Nagai, M.; Nguyen, H.; Pearson, T.J.; Piccirillo, L.; Radford, S.J.E.; Readhead, A.C.S.; Richards, J.L.; Samtleben, D.; Seiffert, M.; Shepherd, M.C.; Staggs, S.T.; Tajima, O.; Thompson, K.L.; Williamson, R.; Winstein, B.; Wollack, E.J. (The American Astronomical Society, 2013)
    The Q/U Imaging ExperimenT (QUIET) is designed to measure polarization in the cosmic microwave background, targeting the imprint of inflationary gravitational waves at large angular scales(∼1◦). Between 2008 October and ...
  • A qualitative study of referring agents’ perceptions of access barriers to inpatient substance abuse treatment centres in the Western Cape 

    Isobell, Deborah; Kamaloodien, Kamal; Savahl, Shazly (BioMed Central, 2015)
    Background: Despite empirical support for the individual and public health benefits of treating substance use disorders (SUDs) , access to these services is impeded by several barriers. Although many studies on access ...
  • Quantification and identification of sperm subpopulations using computer-aided sperm analysis and species-specific cut-off values for swimming speed 

    Maree, Liana; van der Horst, Gerhard (Taylor & Francis, 2013)
    Motility is an essential characteristic of all fl agellated spermatozoa and assessment of this parameter is one criterion for most semen or sperm evaluations. Computer-aided sperm analysis (CASA) can be used to measure ...
  • Quantification of radicals generated in a sonicator 

    Fatoba, Ojo O.; Badmus, K.O.; Tijani, Jimoh O.; Eze, C.P. (Iranian Chemical Society, 2016)
    The hydroxyl radical (OH•) is a powerful oxidant produced as a consequence of cavitation in water. It can react nonspecifically in breaking down persistent organic pollutants in water into their mineral form. It can also ...
  • Quantitative assessment of heavy metal effects on sperm function using computer‐aided sperm analysis and cytotoxicity assays 

    Hardneck, Farren; Israel, Gadieja; Pool, Edmund; Maree, Liana (Wiley, 2018)
    One known environmental risk factor impacting on human reproduction is heavy metal pollution. Although some metals (e.g., Cu, Se and Zn) have protective effects on the male reproductive system in low doses, heavy metals ...
  • A query-based SMS translation in information access system 

    Adesina, Ademola Olusola; Agbele, Kehinde K.; Azeez, Nureni A.; Abidoye, Ademola P. (Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd., 2011)
    Mobile technology has contributed to the evolution of several media of communication such as chats, emails and short message service (SMS) text. This has significantly influenced the traditional standard way of expressing ...
  • Radio continuum surveys with square kilometre array pathfinders 

    Norris, Ray P.; Afonso, J.; Bacon, David; Cress, Catherine (Cambridge University Press, 2013)
    In the lead-up to the Square Kilometre Array (SKA) project, several next-generation radio telescopes and upgrades are already being built around the world. These include APERTIF (The Netherlands), ASKAP (Australia), ...
  • Radio-loud active calactic nucleus: is there a link between luminosity and cluster environment? 

    Ineson, J.; Croston, J. H.; Jarvis, Matt; Hardcastle, M.J.; Evans, D. A.; Kraft, R. P. (American Physical Society, 2013)
    We present here the first results from the Chandra ERA (Environments of Radio-loud AGN) Large Project, characterizing the cluster environments of a sample of 26 radio-loud active galactic nuclei (AGNs) at z ∼ 0.5 that ...
  • Rapid assessment of tissue nitrogen in cultivated Gracilaria gracilis (Rhodophyta) and Ulva lactuca (Chlorophyta) 

    Robertson-Andersson, Deborah; Wilson, D.T.; Bolton, John J.; Anderson, Robert J.; Maneveldt, Gavin (NISC, 2009)
    Tissue nitrogen content and thallus colour were quantified using a rapid assessment method based on the Pantone® matt uncoated formula guide for raft-cultivated Gracilaria gracilis Steentoft Irvine et Farnham at Saldanha ...
  • Rare fungal species isolated from Libyan diabetic patients 

    Esmaio, Mustafa; Abrantes, Pedro Miguel dos Santos; Africa, Charlene W.J. (Infection Control Africa Network (ICAN), 2016)
    BACKGROUND AND OBJECTIVES: The emerging resistance of Candida species to antifungals routinely used to treat candidiasis in HIV patients and in patients with diabetes mellitus (DM) has resulted in the frequent isolation ...
  • A re-assessment of the nearest neighbour alignment of the X-ray isophotes of galaxy clusters 

    Koen, Chris; Lombard, Fred (Oxford University Press, 2006)
    Alignment is defined as the tendency of the distribution of pointing angles between the major axes of clusters and their nearest neighbours to be more concentrated towards small values for small nearest neighbour distances, ...
  • Re-engineering of South Africa’s primary health care system: where is the pharmacist? 

    Bheekie, Angeni; Bradley, Hazel A. (South African Academy of Family Physicians, 2016)
    South Africa’s transition towards a district-based health system (DHS) aims to offer health promotion and prevention services at community level, through re-engineered primary health care (PHC) services. Along with pharmacy ...
  • Reactive oxygen species and male reproductive hormones 

    Darbandi, Mahsa; Darbandi, Sara; Agarwal, Ashok; Sengupta, Pallav; Durairajanayagam, Damayanthi; Henkel, Ralf; Sadeghi, Mohammad Reza (BMC, 2018)
    Reports of the increasing incidence of male infertility paired with decreasing semen quality have triggered studies on the effects of lifestyle and environmental factors on the male reproductive potential. There are ...
  • Reactive oxygen species and male reproductive hormones 

    Darbandi, Mahsa; Darbandi, Sara; Agarwal, Ashok; Sengupta, Pallav; Durairajanayagam, Damayanthi; Henkel, Ralf; Sadeghi, Mohammad Reza (BMC, 2018)
    Reports of the increasing incidence of male infertility paired with decreasing semen quality have triggered studies on the effects of lifestyle and environmental factors on the male reproductive potential. There are ...
  • Real-time gesture recognition using eigenvectors 

    Segers, Vaughn; Connan, James (2009)
    This paper discusses an implementation for gesture recognition using eigenvectors under controlled conditions. This application of eigenvector recognition is trained on a set of defined hand images. Training images are ...
  • Reasons for missed appointments linked to a public-sector intervention targeting patients with stable chronic conditions in South Africa: results from in-depth interviews and a retrospective review of medical records 

    Magadzire, Bvudzai P.; Mathole, Thubelihle; Ward, Kim (BioMed Central, 2017)
    BACKGROUND Missed appointments serve as a key indicator for adherence to therapy and as such, identifying patient reasons for this inconsistency could assist in developing programmes to improve health outcomes. In this ...
  • Reconstructing the deep-branching relationships of the papilionoid legumes 

    Cardoso, D.; Pennington, R.T.; de Queiroz, L.P.; Boatwright, James S.; van Wyk, Brian Eduard; Wojciechowski, M.F.; Lavin, M. (Elsevier, 2013)
    Resolving the phylogenetic relationships of the deep nodes of papilionoid legumes (Papilionoideae) is essential to understanding the evolutionary history and diversification of this economically and ecologically important ...
  • Reconstruction of major maternal and paternal lineages of the Cape Muslim population 

    Isaacs, Shafieka; Geduld-Ullah, Tasneem; Benjeddou, Mongi (Sociedade Brasileira de Genética, 2013)
    The earliest Cape Muslims were brought to the Cape (Cape Town - South Africa) from Africa and Asia from 1652 to 1834. They were part of an involuntary migration of slaves, political prisoners and convicts, and they ...
  • Reflection on three years of rural wireless Internet Protocol communication 

    Tucker, William David; Blake, Edwin H.; Marsden, Gary; Pearson, Murray; Westerveld, Rudi (Telkom, 2007)
    This paper reports on three years of research and fieldwork with a rural wireless Internet Protocol communication project. We built a long-range WiFi network and custom communication software to support a rural telehealth ...
  • The relationship between household sanitation and women’s experience of menstrual hygiene: Findings from a cross-sectional survey in Kaduna State, Nigeria 

    Hennegan, Julie; Zimmerman, Linnea; Shannon, Alexandra K.; Exum, Natalie G.; OlaOlorun, Funmilola; Omoluabi, Elizabeth; Schwab, Kellogg J. (MDPI, 2018)
    Global efforts to improve sanitation have emphasized the needs of women and girls. Managing menstruation is one such need, yet there is scarce research capturing current practices. This study investigated the relationships ...