Growth rings in Cretacous and Tertiary wood from Antarctica and their palaeoclimatic implications

May 9, 2021

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first_imgAlthough the Antarctic Peninsula now has a glacial climate, during the Cretaceous and early Tertiary it was sufficiently warm for forests to thrive, even at palaeolatitudes of 59°-62° S. The forests grew on an emergent volcanic arc and the wood was subsequently buried in fluvial and basinal sediments on the margins of the back-arc basin. The forests were composed mainly of podocarp and araucarian conifers. By the late Cretaceous, angiosperm trees were also present, particularly Nothofagus, forming the characteristic forest association of the southern hemisphere today. The growth rings in the fossil wood are wide and extremely uniform, indicating that the environment was very favourable for tree growth. By comparison with living forest trees with similar growth characteristics, a warm to cool-temperate climate is proposed for the Antarctic Peninsula in the Cretaceous and early Tertiary. Features of fossil floral assemblages and sedimentary rocks are also indicative of this type of climate. An increase in the level of atmospheric carbon dioxide is considered the most likely cause of the warm polar climate at this stage.last_img read more


Careers advisor challenges summer internships

May 3, 2021

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first_imgAn Oxford University Careers Service advisor has claimed that students undertaking summer internships feel drained and unfit to continue their final year of study.Alison Bird told the Financial Times, “You look at the salaries and think it seems a ridiculously high amount but they work very long hours. If they are on the trading floor they will be in at 6 in the morning and some of our students in mergers and acquisitions are working until 10 or 11 at night, which is pretty grim,” she said.Referring to a group of Oxford interns at a bank in Canary Wharf she visited last August, Bird said, “They were working very long hours and living on takeaways, and I was worried about the health of some of them. When I asked them if the hours had put them off they said they hadn’t because the money was so good.”John Kirwan, acting Careers Service director, said, “Some of my colleague’s comments seem to have been misinterpreted, so that the views of the Careers Service were misrepresented.” He said that the Careers Service was fully committed to internships because they were useful in preparing students for full-time work.“We are very positive about the value of appropriate work experience, including internships, for students,” he said. “As part of broadening their experience and employment prospects, the Careers Service encourages all Oxford University students to gain relevant and realistic work experience suited to their career aspirations.”Kirwan acknowledged that the placements might have a detrimental effect on academic work, but maintained that they were highly beneficial when students came to apply for jobs.“The Careers Service actively promotes the publicising of internships and other work experience opportunities, from a wide range of sectors, while recognising that students also need to take into account college regulations and the potential impact of such activities on their academic studies.”Internships continue to be a popular choice for many students, with the most popular placements being at investment banking firms Goldman Sachs and Morgan Stanley.last_img read more


Consultation outcome: Cost effectiveness methodology for vaccination programmes

April 20, 2021

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first_imgBetween 26 February 2018 and 28 June 2018, the government ran a consultation on the recommendations by the Cost-Effectiveness Methodology for Immunisation Programmes and Procurement (CEMIPP) group.The independent CEMIPP group was set up by the then Department of Health to consider whether the method for appraising the cost-effectiveness of vaccination programmes should change.The outcome document provides a summary of the consultation responses and sets out the government’s response to the CEMIPP group’s recommendations.,The report sets out recommendations from the independent CEMIPP group that was set up by the government to consider whether the method for appraising cost effectiveness of vaccination programmes should change.We are looking for views from organisations and committees that appraise cost effectiveness within the health and care sector, as well as specialists with an interest in health economics, including: To allow respondents time to review this additional document we have also extended the deadline by 6 weeks.Please use the link above for more information on submitting a response. health economists based in academia public health practitioners epidemiologists charities and patient groups clinicians and vaccine industry professionals Update 17 MayIn response to feedback received so far, we have published additional information (‘Cost effectiveness methodology for immunisation programmes and procurement report: a lay explanation’), which explains in more simple terms: what the main recommendations in the CEMIPP report are what they could mean for different vaccination programmeslast_img read more