Development of an electronic control unit for the T63 gas turbine

Includes bibliographical references.Fundamental research has been undertaken at the SASOL Advanced Fuels Laboratory to investigate the effects of the chemistry and physical properties of both conventional and synthetic jet fuels on threshold combustion. This research was undertaken using a purpose built low pressure continuous combustion test facility. Researchers at the laboratory now wish to examine these effects on an aviation gas turbine in service for which “off-map” scheduling of fuel to the engine would be required. A two phase project was thus proposed to develop this capability; the work of this thesis embodies Phase I of that project

Fraudulent records – Grave forensic consequences

Natural disasters, fatal accidents, and violent criminal offences are part of everyday life. All of these may result in fatalities that shatter the lives of the victim’s families and friends. Their trauma is compounded by the fact that all unnatural deaths have to be investigated, and the bodies of the deceased positively identified before they can be released to the families for burial. Bodies of victims of violent crimes, fires, drowning, motor vehicle or aviation accidents, work place fatalities or situations where some time has elapsed since death may be so disfigured that “identification by a family member is neither possible or desirable”. Often the nature or degree of the injury may be so extensive that fingerprinting is also not a viable option. DNA analysis may be considered, however it takes time and is a costly procedure. There are also concerns with maintaining strict control over the chain of evidence during all additional procedures and tests. Thus, in these situations the forensic odontologist may be called in as part of the investigative team

Potential entrepreneurs’ assessment of opportunities through the rendering of a business plan

In the field of entrepreneurship and especially during start up, much emphasis is placed on the business plan with regard to entrepreneurship education and training, funding from external investors, business plan competitions and government development agencies in the Small, Medium and Micro Enterprise (SMME) sector. In many earlier studies of well-known entrepreneurship educators, the formulation of a business plan was identified as being the most important feature of any entrepreneurship programme or course. However, the relevance of a business plan has been a topic of intense and unresolved debates in more recent literature. This paper contributes to the literature with regard to the value a business plan adds to potential entrepreneurs. Furthermore it increases the understanding of how a detailed business plan (such as the approved business plan template of the University of Pretoria) can enable a potential entrepreneur to assess opportunities. The paper conducts a comprehensive analysis of business plans and the methods of assessing opportunities, in order to reveal similarities between the business plan and opportunity assessment. Based on descriptive statistics and inferential statistics such as ANOVA, and Kruskal-Wallis tests, the findings support the hypotheses that potential entrepreneurs distinguish between ideas and opportunities and develop opportunities through the formulation of a detailed business plan. The pertinent academic and practical significance of this paper is that it highlights statistically significant differences proving that a detailed business plan is a tool that enables potential entrepreneurs to assess opportunities. From a practical point of view, this should help potential entrepreneurs to establish more viable business ventures; however, this would have to be statistically tested in further research. Finally, the study reestablishes the importance and purpose of a business plan in the field of entrepreneurship.http://www.sajems.org/am201

COVID-19 in Pregnancy in Scotland (COPS):protocol for an observational study using linked Scottish national data

Funding: EAVE II funded by the Medical Research Council (MR/R008345/1) with the support of BREATHE - The Health Data Research Hub for Respiratory Health [MC_PC_19004], which is funded through the UK Research and Innovation Industrial Strategy Challenge Fund and delivered through Health Data Research UK. Additional support has been provided through the Scottish Government DG Health and Social Care. COPS receive additional funding from Tommy’s charity (1060508; SC039280). SJS is supported by Wellcome Trust (209560/Z/17/Z).Introduction The effects of SARS-CoV-2 in pregnancy are not fully delineated. We will describe the incidence of COVID-19 in pregnancy at population level in Scotland, in a prospective cohort study using linked data. We will determine associations between COVID-19 and adverse pregnancy, neonatal and maternal outcomes and the proportion of confirmed cases of SARS-CoV-2 infection in neonates associated with maternal COVID-19. Methods and analysis Prospective cohort study using national linked data sets. We will include all women in Scotland, UK, who were pregnant on or became pregnant after, 1 March 2020 (the date of the first confirmed case of SARS-CoV-2 infection in Scotland) and all births in Scotland from 1 March 2020 onwards. Individual-level data will be extracted from data sets containing details of all livebirths, stillbirth, terminations of pregnancy and miscarriages and ectopic pregnancies treated in hospital or attending general practice. Records will be linked within the Early Pandemic Evaluation and Enhanced Surveillance of COVID-19 (EAVE II) platform, which includes primary care records, virology and serology results and details of COVID-19 Community Hubs and Assessment Centre contacts and deaths. We will perform analyses using definitions for confirmed, probable and possible COVID-19 and report serology results (where available). Outcomes will include congenital anomaly, miscarriage, stillbirth, termination of pregnancy, preterm birth, neonatal infection, severe maternal disease and maternal deaths. We will perform descriptive analyses and appropriate modelling, adjusting for demographic and pregnancy characteristics and the presence of comorbidities. The cohort will provide a platform for future studies of the effectiveness and safety of therapeutic interventions and immunisations for COVID-19 and their effects on childhood and developmental outcomes. Ethics and dissemination COVID-19 in Pregnancy in Scotland is a substudy of EAVE II(, which has approval from the National Research Ethics Service Committee. Findings will be reported to Scottish Government, Public Health Scotland and published in peer-reviewed journals.Publisher PDFPeer reviewe

Cohort Profile: the COVID-19 in Pregnancy in Scotland (COPS) dynamic cohort of pregnant women to assess effects of viral and vaccine exposures on pregnancy

Funding: EAVE II is funded by the Medical Research Council (MR/R008345/1) with the support of BREATHE—the Health Data Research Hub for Respiratory Health [MC_PC_19004] which is funded through the UK Research and Innovation Industrial Strategy Challenge Fund and delivered through Health Data Research UK. Additional EAVE II support has been provided through the Scottish Government DG Health and Social Care. COPS receive additional funding from Tommy’s Charity (Charity number 1060508; SC039280) and is supported by Sands (Charity number 299679). S.J.S. is supported by the Wellcome Trust (209560/Z/17/Z). S.V.K. acknowledges funding from an NRS Senior Clinical Fellowship (SCAF/15/02), the Medical Research Council (MC_UU_00022/2) and the Scottish Government Chief Scientist Office (SPHSU17). B.A. was supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No.813546, the Baily Thomas Charitable Fund, the Data Driven Innovation and the UK Economic and Social Research Council (ES/N018877/1) during the course of this work.Publisher PDFPeer reviewe

Author Correction:SARS-CoV-2 infection and COVID-19 vaccination rates in pregnant women in Scotland

Population-level data on COVID-19 vaccine uptake in pregnancy and SARS-CoV-2 infection outcomes are lacking. We describe COVID-19 vaccine uptake and SARS-CoV-2 infection in pregnant women in Scotland, using whole-population data from a national, prospective cohort. Between the start of a COVID-19 vaccine program in Scotland, on 8 December 2020 and 31 October 2021, 25,917 COVID-19 vaccinations were given to 18,457 pregnant women. Vaccine coverage was substantially lower in pregnant women than in the general female population of 18−44 years; 32.3% of women giving birth in October 2021 had two doses of vaccine compared to 77.4% in all women. The extended perinatal mortality rate for women who gave birth within 28 d of a COVID-19 diagnosis was 22.6 per 1,000 births (95% CI 12.9−38.5; pandemic background rate 5.6 per 1,000 births; 452 out of 80,456; 95% CI 5.1−6.2). Overall, 77.4% (3,833 out of 4,950; 95% CI 76.2−78.6) of SARS-CoV-2 infections, 90.9% (748 out of 823; 95% CI 88.7−92.7) of SARS-CoV-2 associated with hospital admission and 98% (102 out of 104; 95% CI 92.5−99.7) of SARS-CoV-2 associated with critical care admission, as well as all baby deaths, occurred in pregnant women who were unvaccinated at the time of COVID-19 diagnosis. Addressing low vaccine uptake rates in pregnant women is imperative to protect the health of women and babies in the ongoing pandemic