525 research outputs found

    Baptism and the interpretation of early Quistian art

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    Baptism and the interpretation of early Christian artThe aim of this article is to stress the necessity of interpreting early Christian art in its context and with due respect to its deep structure or primary notion. It often happens that scholars base their arguments on the superficial features of a work of art, but they fail to understand the notion which these features convey. This will be illustrated by examples of baptismal scenes. It will be shown how these scenes of art are misused and misinterpreted by modem scholars because the above-mentionedprinciples are disregarded

    Het ‘n eerste verbandhouer werklik ‘n “vry hand”-voorkeur ten opsigte van sy sekuriteit as vervreembare goed kragtens artikel 8(b) van die Insolvensiewet? Absa Bank Ltd V Collier 2015 4 Sa 364 (WCC)

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    Uit teks: Met ‘n vlugtige lees van die opsomming van hierdie saak was die skrywers van mening dat die uitspraak nie juis noemenswaardig is nie, maar met nadere ondersoek het dit geblyk dat dit uiters belangrike kwessies aanroer

    Kernaspekte rondom die voeging van gades en vennote by 'n aansoek vir verpligte sekwestrasie

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    Core aspects pertaining to the joining of spouses and partners in an application for compulsory sequestration Joining parties as respondents in an application for compulsory sequestration is possible beyond instances where spouses are married in community of property or in cases involving partnerships. The practice in the Gauteng Division of the High Court is that several respondents are not allowed in a joint application for their individual sequestration, unless there is a complete identity of interests. The correctness of this established practice, as supported by the decision in Ferela (Pty) Ltd v Craigie and Others 1980 3 SA 167 (W) and Breetveldt and Others v Van Zyl and Others 1972 1 SA 304 (T), was drawn into question by the findings in Business Partners Ltd v Vecto Trade 87 (Pty) Ltd and Others 2004 5 SA 296 (SE) and Maree and Another v Bobroff and Another [2017] ZAGPJHC (7 March 2017), where the requirement of a “complete identity of interests” was substituted for a “substantial coincidence in the interests” of the respondents. With the 2017 decision in Strutfast (Pty) Ltd v Uys and Another 2017 6 SA 491 (GJ), there is a return to the former practice. The authors analyse this case and contend that it was correctly decided. However, the authors also draw attention to what the Strutfast case did not decide, and postulate that this implies that joining is also possible in alternative situations

    Average velocities of some ocean currents as deduced from the recovery of plastic drift cards

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    Twenty-four drift cards, released in 1964 through 1966 in the vicinity of Cape Town and at various locations in the Atlantic Ocean, have been recovered on the coasts of: North and South America, three islands in the South Atlantic, England, France, Nigeria, and Australia. The travel times indicated by 19 of these cards have been used to estimate the mean velocities of the presumed current systems involved. The rate of card recovery and the long distances traveled by the cards have proved conclusively that the solid polythene drift card is durable

    High-speed Civil Transport Aircraft Emissions

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    Estimates are given for the emissions from a proposed high speed civil transport (HSCT). This advanced technology supersonic aircraft would fly in the lower stratosphere at a speed of roughly Mach 1.6 to 3.2 (470 to 950 m/sec or 920 to 1850 knots). Because it would fly in the stratosphere at an altitude in the range of 15 to 23 km commensurate with its design speed, its exhaust effluents could perturb the chemical balance in the upper atmosphere. The first step in determining the nature and magnitude of any chemical changes in the atmosphere resulting from these proposed aircraft is to identify and quantify the chemically important species they emit. Relevant earlier work is summarized, dating back to the Climatic Impact Assessment Program of the early 1970s and current propulsion research efforts. Estimates are provided of the chemical composition of an HSCT's exhaust, and these emission indices are presented. Other aircraft emissions that are not due to combustion processes are also summarized; these emissions are found to be much smaller than the exhaust emissions. Future advances in propulsion technology, in experimental measurement techniques, and in understanding upper atmospheric chemistry may affect these estimates of the amounts of trace exhaust species or their relative importance

    Economic appraisal of dabigatran as first-line therapy for stroke prevention in atrial fibrillation

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    Background. Dabigatran is an oral anticoagulant direct thrombin inhibitor recently registered in South Africa (SA) to reduce the risk of stroke and systemic embolism in patients with atrial fibrillation (AF). Owing to the price disparity between warfarin (the current gold standard for treatment of patients with AF) and dabigatran, we conducted an economic appraisal of the use of dabigatran compared with warfarin from a payer perspective in the South African private healthcare setting.Objectives. To estimate the cost-effectiveness (CE) and budget impact of dabigatran compared with warfarin for the prevention of strokein AF patients.Methods. A previously published Markov model was populated with SA cost and mortality data to estimate the CE and budget impact analysis of dabigatran over a lifetime horizon. The model population consisted of a cohort of patients of whom those aged younger than 80 years used dabigatran 150 mg twice daily and those older than 80 years 110 mg twice daily. Modelled outcomes included total cost, qualityadjusted life years (QALYs) and incremental CE ratio (ICER), with the effectiveness measured by QALYs gained.Results. Dabigatran compared with warfarin as first-line treatment was estimated to have an ICER of R93 290 and an average incrementalcost per beneficiary per month of R0.39 over a 5-year period. Conservative assumptions were made regarding the number of international normalised ratio monitoring tests for patients on warfarin, and the ICER is estimated to decrease by as much as 15.7% under less stringent assumptions. A robust sensitivity analysis was also performed.Conclusion. Dabigatran as first-line treatment compared with warfarin for the use of stroke prevention in patients with AF is deemed costeffectivewhen used in accordance with its registered indication in the SA private sector

    Estimating the number of livebirths to Hepatitis C seropositive women in England in 2013 and 2018 using Bayesian modelling.

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    BACKGROUND: The UK National Screening Committee currently recommends against antenatal screening for Hepatitis C virus (HCV) infection in England due to lack of HCV prevalence data and treatment licensed for use in pregnancy. We aimed to produce regional and national estimates of the number and proportion of livebirths to HCV seropositive women in England in 2013 and 2018. METHODS: A logistic regression model fitted in the Bayesian framework estimated probabilities of HCV seropositivity among 24,599 mothers delivering in the North Thames area of England in 2012 adjusted by maternal age and region of birth. These probabilities were applied to the underlying population structures of women delivering livebirths in England in 2013 and 2018 to estimate the number of livebirths to HCV seropositive women in these years nationally and by region. The Bayesian approach allowed the uncertainty associated with all estimates to be properly quantified. RESULTS: Nationally, the estimated number of livebirths to women seropositive for HCV for England was 464 (95% credible interval [CI] 300-692) in 2013 and 481 (95%CI 310-716) in 2018, or 70.0 (95%CI 45.0-104.1) per 100,000 and 76.9 (95%CI 49.5-114.4) per 100,000 in these years respectively. Regions with the highest estimated number of livebirths to HCV seropositive women in 2013 and 2018 included London with 118.5 and 124.4 and the South East with 67.0 and 74.0 per 100,000 livebirths. CONCLUSION: Few previous studies have investigated HCV among pregnant women in England. These findings complement and supplement existing research by providing national and regional estimates for the number of livebirths to HCV seropositive women in England. Bayesian modelling allows future national and regional estimates to be produced and the associated uncertainty to be properly quantified

    Broadband mm‐wave propagation characterization of planar groove gap waveguide

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    We present, experimental broadband propagation characterization of a planar groove gap waveguide (PGGWG) from 29 to 40 GHz. The transmission line Q‐factor is found to vary from 110 to 130 over the band, which is shown by comparison of measurement data to be comparable to substrate integrated waveguide (SIW). PGGWG is found to have a phase constant of nearly double that of SIW using the same materials and manufacturing process. This is a significant result for system miniaturization.The National Research Foundation of South Africahttp://wileyonlinelibrary.com/journal/mop2021-05-01hj2020Electrical, Electronic and Computer Engineerin
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