Late Neogene interglacial events in the James Ross Island region, northern Antarctic Peninsula, dated by Ar/Ar and Sr-isotope stratigraphy

first_imgNew outcrops of Late Neogene sedimentary deposits discovered on James Ross and Vega islands, northern Antarctic Peninsula, are fossiliferous and contain mainly fragmented pectinids amongst other as yet unstudied biota. The sedimentary deposits are interbedded with fresh volcanic units, thus providing the unusual opportunity to investigate the ages of the sedimentary rocks using two independent isotopic systems (40Ar/39Ar and 87Sr/86Sr). The fossils record past periods of warmer conditions (interglacials) like today. However, our results demonstrate unequivocally that some of the macrofossils present in the sedimentary rocks are reworked and the host sediments are, in these cases, much younger than the ages of their included fossils would suggest. Nevertheless, the Sr ages date these records of interglacial events in the region independently of the age of the strata in which they occur. Conversely, the volcanic rocks show abundant field evidences that they are coeval with the underlying sedimentary deposits, and hence their Ar ages reliably date the timing of their deposition. Our results indicate that at least three generally warmer periods are represented in the James Ross Island region: at 6.5–5.9, 5.03–4.22 and< 0.88 Ma, although our data do not have the resolution for identifying Milankovitch-scale cyclicity. However, the Early Pliocene warm period is particularly well represented and the James Ross Island data may well be capturing a higher proportion of the longer-lasting interglacials that characterised that period. We also present evidence for an interglacial in the Late Pliocene (at 2.54 + 0.86/− 0.36 Ma). Our data suggest that both Antarctic Peninsula and the East Antarctic ice sheets responded in a similar way to long-term regional shifts in climate, but the Antarctic Peninsula is more sensitive to short-term warming, as occurs today.last_img read more

Pliocene Model Intercomparison Project (PlioMIP) : experimental design and boundary conditions (Experiment 1)

first_imgIn 2008 the temporal focus of the Palaeoclimate Modelling Intercomparison Project was expanded to include a model intercomparison for the mid-Pliocene warm period (3.29–2.97 million years ago). This project is referred to as PlioMIP (Pliocene Model Intercomparison Project). Two experiments have been agreed upon and comprise phase 1 of PlioMIP. The first (Experiment 1) will be performed with atmosphere-only climate models. The second (Experiment 2) will utilise fully coupled ocean-atmosphere climate models. The aim of this paper is to provide a detailed model intercomparison project description which documents the experimental design in a more detailed way than has previously been done in the literature. Specifically, this paper describes the experimental design and boundary conditions that will beutilised for Experiment 1 of PlioMIP.last_img read more

Global statistical evidence for chorus as the embryonic source of plasmaspheric hiss

first_imgThe origin of plasmaspheric hiss, the electromagnetic emission responsible for the gap between the inner and outer radiation belts, has been debated for over four decades. Recently, a new theory proposed that chorus, which is excited in the equatorial region outside the plasmapause, can propagate to low altitudes on the dayside and evolve into plasmaspheric hiss. Here we combine data from six satellites and show that chorus extends along the Earth’s magnetic field to high latitudes in the prenoon sector, and, in the equatorial region, there is a clear gap of the order of 1–2 Earth radii between plasmaspheric hiss at L∗<4 and chorus further out, consistent with ray tracing modeling from a chorus source. Our observations confirm two of the key predictions of the new theory and provide the first statistical evidence for chorus as the embryonic source of plasmaspheric hiss.last_img read more

Early Cenozoic evolution of the latitudinal diversity gradient

first_imgWe are beginning to appreciate that the huge radiations of both marine and terrestrial taxa in the aftermath of the K/Pg mass extinction event were concentrated largely, but not exclusively, in the low-latitude and tropical regions. This in turn means that significant latitudinal diversity gradients were developed well before the onset of global cooling at the Eocene/Oligocene boundary. Net rates of evolutionary radiations were significantly higher through the Early Paleocene – Middle Eocene interval (i.e. ~62–42 Ma) in the tropics than at the poles but this may be due as much to their retardation in the latter regions as to their acceleration in the former. At least in the marine realm, polar assemblages are characterised by the phenomenon of high dominance/low evenness, and it is thought likely that this is due to the extreme seasonality of primary production at the base of the food chain. Many modern polar marine organisms are de facto trophic generalists and occupy significantly broader ecological niches than their tropical counterparts. Although we cannot dismiss the roles of both temperature and area in promoting tropical diversity, it could well be that LDGs are just as much the product of a latitudinal gradient in the seasonality of primary productivity. Such a gradient would have operated in both greenhouse and icehouse worlds.last_img read more

Associate Dean for Graduate Studies and Faculty Affairs

first_imgThis Associate Dean for Graduate Studies and Faculty Affairs is a12-month position that concurrently carries the rank of professoror associate professor. The Associate Dean for Graduate Studies andFaculty Affairs will work both collaboratively and independentlywhile reporting to the Dean. She/He will have leadership experienceand demonstrated ability to coordinate multiple projectseffectively and efficiently. She/He must be able to handleconfidential information in the strictest manner, and effectivelywork with a diverse population of students and faculty. Thesuccessful candidate must demonstrate energy, genuine interest, andcommitment to improving academic achievement of both faculty andstudents in the College. The candidate will be expected to teach atleast one to two courses per year. As determined by the Dean, theprimary responsibilities for this position include administrativeduties that support the Dean’s Office in its efforts to positionthe College for successful implementation of its strategic plan asrelated to academics, research and development success goals andobjectivesincluding assessment/creation of new CAHSS graduatedegree programs and certificates; maintaining faculty requirementsfor teaching, research and service; oversight of College’s facultyresearch endeavors, graduate research efforts, and graduate studentdevelopment and mentoring initiatives; liaising with theUniversity’s Division of Research and Economic Development (DORED)and other state/non-state research agencies to determine viableresearch RFPs; and assist/guide CAHSS departmental effortsregarding research proposal development, submittal and reporting.In concert with individual CAHSS departmental leadership, theposition’s additional duties include development of innovativestrategies to increase graduate student enrollment and retention,expand faculty/student participation in scholarlyresearch/activity, such as conference presentations, publishing,etc.; and, in conjunction with selected CAHSS Dean’s Officepersonnel, management of financial resourcesUniversity, state,government & privateallocated for graduate student programs andresearch development. Under the direction of the Dean, other dutiesinclude administration of the College’s standing committees;leading promotion and tenure development workshops; and overseeingfaculty development efforts. Other responsibilities include, butare not limited to, engaging in University/College-wideaccreditation and assessment procedures; service to the department,College and University as needed; and conducting scholarlyactivities and any/all other activities required for tenure andpromotion.last_img read more

Emergency accommodation for rough sleepers in Oxford open for 19 consecutive days

first_imgOn average, 10 people per night have accessed SWEP accommodation so far this winter, according to data released by the Oxford City Council. The number peaked at 17 people on both New Year’s Eve and New Year’s Day. “It has been a privilege to provide relief, dignity and a safe warm space to people experiencing rough sleeping. We’ve also managed to support one rough sleeper into stable accommodation, and former rough sleepers in our supported accommodation are providing peer support to people accessing the SWEP service to ensure they are accessing substance misuse recovery groups in the evenings,” added Paul Roberts, CEO of Aspire. In view of the ongoing pandemic, rough sleepers in SWEP accommodation are now offered their own room for the night, while in previous years they would sleep in shared spaces. The Oxford City Council has secured 25 rooms across 3 venues, and there are contingency plans in place to provide more rooms if the need arises. This has been achieved through collaborations with St Mungo’s, Aspire, and Homeless Oxfordshire, organisations that assist homeless people in Oxfordshire. Since the start of the pandemic, the Council has housed 303 homeless people. Of these, 134 have been provided more permanent housing, including some who had been sleeping rough on a long-term basis. The Oxfordshire County Council has also recently provided additional funding to help rough sleepers in Oxford access more support for problems with drug and alcohol use. Oxford City will receive £584,000 initially, with additional funding available in subsequent years, to address intensive substance misuse, according to a press release from the Oxfordshire County Council. The SWEP has been open for extended periods on a few occasions in the past. In March and April 2013, the SWEP was open for 12 consecutive nights. This occurred again in February to March 2018, when the British Isles experienced the Beast from the East cold wave. The SWEP is activated every night when the Met Office forecasts temperatures to fall below zero overnight. It could also be activated in other severe weather conditions such as snow. It was open for 19 consecutive nights this winter, from 23 December to the morning of 11 January. This is the longest continuous duration which the SWEP has remained open. The SWEP was then opened once again on 12 January. Photo: Garry Knight, via Wikimedia Commons. On Tuesday, 12 January, the Oxford City Council re-activated its severe weather emergency protocol (SWEP), providing emergency beds for people experiencing rough sleeping. “Cold weather can kill. It is vital that everyone who is on the streets, or who is at risk of rough sleeping, can access self-contained accommodation as soon as possible, with adequate support where it is needed. We will continue to work with Oxford City Council to save lives this winter,” said Matt Rudd, regional manager of St Mungo’s in Oxford, in a news release on the Oxford City Council website.last_img read more

EL CLASSICO

first_imgThe Third Annual Bielan-Ward Boys vs. Girls “El Classico” was played on December 27 with the boys finally getting a win after a two year drought. The game was decided on a last second goal that produced an 8-7 victory for the boys. The girls lead the series 2-1.last_img

News story: UK-China partnerships against antimicrobial resistance get funding

first_img Antimicrobial resistance is one of the biggest global challenges in healthcare. It has been estimated that the AMR threat could lead to 10 million extra deaths a year and cost the global economy up to £75 trillion by 2050. This partnership between China and the UK’s world-leading bio-industry is a vital contribution to tacking this issue through international co-operation. Find out more about how small businesses are using SBRI to help find solutions to problems faced by the public sector. A further £10 million has been awarded to UK organisations as part of the SBRI to develop solutions to AMR in humans. This competition focuses on two strands of research; new therapies and infection prevention and control.Of the 13 projects selected across business and academia, 9 are led by small and medium enterprises who will translate AMR research into industry.Winners include a project from Surrey-based Clean Blue Ltd that will develop an anti-infective medical device. Medisieve, based in London, has also received funding to use magnetic blood filtration to treat antibiotic resistant bacterial sepsis. GAMRIF’s UK-China research competition supports new innovations to address antimicrobial infections in both humans and animals, which together constitute a significant threat to human health. Successful projects are a partnership of UK companies and research organisations, with Chinese companies and research organisations. £10 million of UK aid funding has now been awarded to UK partners, with MoST providing funding for the Chinese partners who will receive up to a total of 60 million RMB.These partnerships will enable novel research to be conducted that neither country could carry out alone within the same time frame.In total, 14 projects were selected and will run over the next three years. These projects include a diverse range of innovations, such as novel diagnostics, therapeutics, and animal feed, as well as opportunities from traditional Chinese medicine for treating or preventing infectious bacterial disease.The results of this research will have global implications including in China and across emerging and developing countries.Among these projects, are a collaboration between The Vaccine Group, based in Plymouth and the Shanghai Veterinary Research Institute (SHVRI), Chinese Academy of Agricultural Science (CAAS), which plans to use a bovine virus as a safe, inexpensive, single dose vaccine to control Streptococcus suis infection in domestic pigs. Also working with SHVRI, CAAS is GAMA Healthcare Ltd in Watford, who have collaboratively proposed to develop a non-antibiotic treatment of multi-drug resistant organisms in poultry.Professor Dame Sally Davies, England’s Chief Medical Officer, said: On the day that the UK Government publishes its strategy to tackle antimicrobial resistance (AMR), the UK’s innovation agency, Innovate UK is announcing winners of two research competitions to address the issue of infections resistant to antibiotics both in humans and in animals.On behalf of the Department of Health and Social Care (DHSC), Innovate UK has completed two research competitions that will award £20 million of research funding for AMR research. This includes a bilateral research competition between DHSC’s Global AMR Innovation Fund (GAMRIF) and the Chinese Ministry of Science and Technology (MoST), and a competition as part of the Small Business Research Initiative (SBRI). Drug resistant infections claim hundreds of thousands of lives across the globe. An innovative and international response is vital – this latest collaboration between the UK and China guarantees much needed research to address the complex and world-wide issue of AMR Dr Kath Mackay, Interim Director – Ageing Society, Health & Nutrition, Innovate UK said:last_img read more

JCC Calls Off Fall Intercollegiate Sports Over Pandemic Fears

first_imgShare:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email this to a friend (Opens in new window) JAMESTOWN — Jamestown Community College has cancelled all fall intercollegiate athletic competition in light of complications from the coronavirus pandemic.“JCC is cancelling all fall intercollegiate athletics — volleyball, men’s and women’s soccer, and cross-country — for the fall 2020 semester due to recommended regulations associated with the COVID-19 pandemic,” said George Sisson, athletics and recreation director.“It was a hard and sad decision to make but we must protect the health and welfare of our student-athletes, staff, and community,” Sisson emphasized, noting that coaches and athletes had been preparing during the off-season for a return to sports.JCC’s decision was made after all but five of the 21 colleges in the National Junior College Athletic Association’s Region III had cancelled their fall athletics programs. “Although the plan to initiate a new cross-country program at our Cattaraugus County Campus is impacted for the fall, we will move ahead with establishing a cross-country team once athletic competitions are restarted,” Sisson noted.The winter athletics schedule remains under consideration with a decision pending on July 17. JCC’s winter athletics schedule includes men’s and women’s basketball, wrestling, and swimming and diving.last_img read more

Tapping Wind and Natural Gas, New Regional Grid Expansion for Dakotas, Minnesota and Wisconsin Is Complete

first_imgTapping Wind and Natural Gas, New Regional Grid Expansion for Dakotas, Minnesota and Wisconsin Is Complete FacebookTwitterLinkedInEmailPrint分享Associated Press:Xcel Energy and Otter Tail Power say they’ve completed a 70-mile power line in South Dakota that’s the last piece of a major expansion of the upper Midwest power grid called CapX2020.The new 345-kilovolt line connects a new substation near Big Stone City with an existing substation in Brookings in eastern South Dakota.In the announcement Wednesday, the Minnesota-based utilities say eight wind projects and a natural gas power plant are waiting to connect to the line.CapX2020 is an initiative of 11 utilities in Minnesota, the Dakotas and Wisconsin to expand and upgrade the regional power grid to handle the increasing supply of wind and solar power. It includes 800 miles of transmission lines altogether, representing a $2 billion investment.Utilities Finish Last Piece of CapX2020 Power Grid Expansionlast_img read more