301 research outputs found
Inspiring library partnerships: Evaluation of a unique reciprocal borrowing scheme between Higher Education and local authorities in the West of England
The SWRLS Open Doors project was a partnership between LibrariesWest (led by South Gloucestershire Library Service) and UWE Bristol Library Services and funded by SWRLS (South Western Regional Library Service). The aim was to pilot a reciprocal borrowing scheme between public and academic libraries using existing cards, i.e. public library cards in the academic library and university ID cards in the public libraries. The pilot looked at the scheme in terms of the following:the ease with which it was to set up,its limitations,barriers or obstacles and how these could be overcome,how popular it was both with staff and customers (i.e. members of the public or UWE staff and students).The report details the way in which the pilot was run, considers information from other higher and further education institutions and relevant literature, looks at other schemes in the UK and outlines the issues that were identified. The users of the scheme were surveyed â staff and customers â and their responses analysed.The report concludes that the reciprocal use of existing library cards between institutions and public libraries in a geographical area:was relatively simple once set up,was appreciated by all those who participated,had few teething problems,has had no appreciable impact on the availability of academic stock to UWE students,increased public library as well as academic library usage by target groups, e.g. school students 16 years and over,enabled the public library service to provide a significantly better offer of resources to its community,especially those who needed access to specialised stock not normally available in a general public library service.The Project Board recommends that this reciprocal borrowing arrangement continues between UWE and LibrariesWest and that other similar partnerships would benefit where they are geographically linked.The partners in this project plan to continue the project and to monitor it using the statistics and data monitoring used to assess its success and to give it prominence in University and public library / schools promotional material at the start of each academic year.Further information concerning this SWRLS Open Doors reciprocal borrowing project can be obtained by looking at the project website or by emailing [email protected]
Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey
We present results from the earliest observations of DEBRIS, a Herschel Key
Programme to conduct a volume- and flux-limited survey for debris discs in
A-type through M-type stars. PACS images (from chop/nod or scan-mode
observations) at 100 and 160 micron are presented toward two A-type stars and
one F-type star: beta Leo, beta UMa and eta Corvi. All three stars are known
disc hosts. Herschel spatially resolves the dust emission around all three
stars (marginally, in the case of beta UMa), providing new information about
discs as close as 11 pc with sizes comparable to that of the Solar System. We
have combined these data with existing flux density measurements of the discs
to refine the SEDs and derive estimates of the fractional luminosities,
temperatures and radii of the discs.Comment: to be published in A&A, 5 pages, 2 color figure
A planetary system as the origin of structure in Fomalhaut's dust belt
The Sun and >15 percent of nearby stars are surrounded by dusty debris disks
that must be collisionally replenished by asteroids and comets, as the dust
would otherwise be depleted on <10 Myr timescales (ref. 1). Theoretical studies
show that disk structure can be modified by the gravitational influence of
planets (ref. 2-4), but the observational evidence is incomplete, at least in
part because maps of the thermal infrared emission from disks have low linear
resolution (35 AU in the best case; ref. 5). Optical images provide higher
resolution, but the closest examples (AU Mic and Beta Pic) are edge-on (ref.
6,7), preventing the direct measurement of azimuthal and radial disk structure
that is required for fitting theoretical models of planetary perturbations.
Here we report the detection of optical light reflected from the dust grains
orbiting Fomalhaut (HD 216956). The system is inclined 24 degrees away from
edge-on, enabling the measurement of disk structure around its entire
circumference, at a linear resolution of 0.5 AU. The dust is distributed in a
belt 25 AU wide, with a very sharp inner edge at a radial distance of 133 AU,
and we measure an offset of 15 AU between the belt's geometric centre and
Fomalhaut. Taken together, the sharp inner edge and offset demonstrate the
presence of planet-mass objects orbiting Fomalhaut.Comment: 8 pages, 3 figures, 1 tabl
Crop Updates 1999 - Oilseeds
This article contains eighteen papers
INTRODUCTION, Paul Carmody, Agriculture Western Australia
PLENARY SESSION
Transgenic canola in Western Australia: Outlook and challenges, Phil Salisbury, University of Melbourne
Farming system issues for herbicide tolerant canola, Rick Madin, Rick Madin and Associates, David Bowran, Agriculture Western Australia
Beating blackleg in 1999, Martin Barbetti, Ravjit Khangura, Paul Carmody, Graham Walton, Agriculture Western Australia
The Mustard Industry in Australia â Opportunities for a new oilseed, Phil Parker, NSW Agriculture
Management of blackleg with fungicides, Ravjit Khangura and Martin Barbetti, Agriculture Western Australia
Effect of aphid feeding damage on canola yields in 1998, Francoise Berlandier and Linnet Cartwright, Agriculture Western Australia
Post-anthesis duration and rainfall affect oil content of canola, Ping Si, University of West Australia, Graham Walton, Agriculture Western Australia, Nick Galwey and David Turner, University of West Australia
Canola responded to high rates of fertiliser in 1998, Wayne Pluske, CSBP
Impact of agronomic practices on canola quality, Graham Walton, Agriculture Western Australia
Survey reveals widespread infection with two virus diseases in Western Australian canola crops, Roger Jones and Brenda Coutts, Agriculture Western Australia
Calculating canola yields and oil contents as a function of soil and fertiliser nitrogen supply, Bill Bowden and Isabel Arevalo-Vigne, Agriculture Western Australia
Canola benchmarks 1997/98 â Central Eastern District, Jeff Russell, Agriculture Western Australia
Seeding rate affects the yield and some architectural features of canola, Syed H. Zaheer, Nick W. Galwey and David Turner, University of Western Australia
Foliar applied fungicides for blackleg, Andrew Simon and Art Diggle, Agriculture Western Australia
Farm based demonstration 1998 canola N â Wheel evaluation, Jeff Russell, Agriculture Western Australia
Effect of sowing date on seed yield of canola, Dave Eksteen, Agriculture Western Australia
Investigating water use of summer crops on the South Coast of Western Australia, Arjen Ryder, Agriculture Western Australia, Bill Crabtree, Western Australia No Till Farming Association, Serena Wyatt, Catchment Landcare Coordinator, Wellstead, Jim Baily, Subasio Downs, Wellstead
INTRODUCTION, Paul Carmody, Agriculture Western Australia
PLENARY SESSION
Transgenic canola in Western Australia: Outlook and challenges, Phil Salisbury, University of Melbourne
Farming system issues for herbicide tolerant canola, Rick Madin, Rick Madin and Associates, David Bowran, Agriculture Western Australia
Beating blackleg in 1999, Martin Barbetti, Ravjit Khangura, Paul Carmody, Graham Walton, Agriculture Western Australia
The Mustard Industry in Australia â Opportunities for a new oilseed, Phil Parker, NSW Agriculture
Management of blackleg with fungicides, Ravjit Khangura and Martin Barbetti, Agriculture Western Australia
Effect of aphid feeding damage on canola yields in 1998, Francoise Berlandier and Linnet Cartwright, Agriculture Western Australia
Post-anthesis duration and rainfall affect oil content of canola, Ping Si, University of West Australia, Graham Walton, Agriculture Western Australia, Nick Galwey and David Turner, University of West Australia
Canola responded to high rates of fertiliser in 1998, Wayne Pluske, CSBP
Impact of agronomic practices on canola quality, Graham Walton, Agriculture Western Australia
Survey reveals widespread infection with two virus diseases in Western Australian canola crops, Roger Jones and Brenda Coutts, Agriculture Western Australia
Calculating canola yields and oil contents as a function of soil and fertiliser nitrogen supply, Bill Bowden and Isabel Arevalo-Vigne, Agriculture Western Australia
Canola benchmarks 1997/98 â Central Eastern District, Jeff Russell, Agriculture Western Australi
Monitoring indirect impact of COVID-19 pandemic on services for cardiovascular diseases in the UK.
OBJECTIVE: To monitor hospital activity for presentation, diagnosis and treatment of cardiovascular diseases during the COVID-19) pandemic to inform on indirect effects. METHODS: Retrospective serial cross-sectional study in nine UK hospitals using hospital activity data from 28 October 2019 (pre-COVID-19) to 10 May 2020 (pre-easing of lockdown) and for the same weeks during 2018-2019. We analysed aggregate data for selected cardiovascular diseases before and during the epidemic. We produced an online visualisation tool to enable near real-time monitoring of trends. RESULTS: Across nine hospitals, total admissions and emergency department (ED) attendances decreased after lockdown (23 March 2020) by 57.9% (57.1%-58.6%) and 52.9% (52.2%-53.5%), respectively, compared with the previous year. Activity for cardiac, cerebrovascular and other vascular conditions started to decline 1-2 weeks before lockdown and fell by 31%-88% after lockdown, with the greatest reductions observed for coronary artery bypass grafts, carotid endarterectomy, aortic aneurysm repair and peripheral arterial disease procedures. Compared with before the first UK COVID-19 (31 January 2020), activity declined across diseases and specialties between the first case and lockdown (total ED attendances relative reduction (RR) 0.94, 0.93-0.95; total hospital admissions RR 0.96, 0.95-0.97) and after lockdown (attendances RR 0.63, 0.62-0.64; admissions RR 0.59, 0.57-0.60). There was limited recovery towards usual levels of some activities from mid-April 2020. CONCLUSIONS: Substantial reductions in total and cardiovascular activities are likely to contribute to a major burden of indirect effects of the pandemic, suggesting they should be monitored and mitigated urgently
Mortality Among Adults With Cancer Undergoing Chemotherapy or Immunotherapy and Infected With COVID-19
Importance: Large cohorts of patients with active cancers and COVID-19 infection are needed to provide evidence of the association of recent cancer treatment and cancer type with COVID-19 mortality. // Objective: To evaluate whether systemic anticancer treatments (SACTs), tumor subtypes, patient demographic characteristics (age and sex), and comorbidities are associated with COVID-19 mortality. //
Design, Setting, and Participants: The UK Coronavirus Cancer Monitoring Project (UKCCMP) is a prospective cohort study conducted at 69 UK cancer hospitals among adult patients (â„18 years) with an active cancer and a clinical diagnosis of COVID-19. Patients registered from March 18 to August 1, 2020, were included in this analysis. // Exposures: SACT, tumor subtype, patient demographic characteristics (eg, age, sex, body mass index, race and ethnicity, smoking history), and comorbidities were investigated. // Main Outcomes and Measures: The primary end point was all-cause mortality within the primary hospitalization. // Results: Overall, 2515 of 2786 patients registered during the study period were included; 1464 (58%) were men; and the median (IQR) age was 72 (62-80) years. The mortality rate was 38% (966 patients). The data suggest an association between higher mortality in patients with hematological malignant neoplasms irrespective of recent SACT, particularly in those with acute leukemias or myelodysplastic syndrome (OR, 2.16; 95% CI, 1.30-3.60) and myeloma or plasmacytoma (OR, 1.53; 95% CI, 1.04-2.26). Lung cancer was also significantly associated with higher COVID-19ârelated mortality (OR, 1.58; 95% CI, 1.11-2.25). No association between higher mortality and receiving chemotherapy in the 4 weeks before COVID-19 diagnosis was observed after correcting for the crucial confounders of age, sex, and comorbidities. An association between lower mortality and receiving immunotherapy in the 4 weeks before COVID-19 diagnosis was observed (immunotherapy vs no cancer therapy: OR, 0.52; 95% CI, 0.31-0.86). // Conclusions and Relevance: The findings of this study of patients with active cancer suggest that recent SACT is not associated with inferior outcomes from COVID-19 infection. This has relevance for the care of patients with cancer requiring treatment, particularly in countries experiencing an increase in COVID-19 case numbers. Important differences in outcomes among patients with hematological and lung cancers were observed
The First Post-Kepler Brightness Dips of KIC 8462852
We present a photometric detection of the first brightness dips of the unique variable star KIC 8462852 since the end of the Kepler space mission in 2013 May. Our regular photometric surveillance started in October 2015, and a sequence of dipping began in 2017 May continuing on through the end of 2017, when the star was no longer visible from Earth. We distinguish four main 1-2.5% dips, named "Elsie," "Celeste," "Skara Brae," and "Angkor", which persist on timescales from several days to weeks. Our main results so far are: (i) there are no apparent changes of the stellar spectrum or polarization during the dips; (ii) the multiband photometry of the dips shows differential reddening favoring non-grey extinction. Therefore, our data are inconsistent with dip models that invoke optically thick material, but rather they are in-line with predictions for an occulter consisting primarily of ordinary dust, where much of the material must be optically thin with a size scale <<1um, and may also be consistent with models invoking variations intrinsic to the stellar photosphere. Notably, our data do not place constraints on the color of the longer-term "secular" dimming, which may be caused by independent processes, or probe different regimes of a single process
Measurement of the Production Rate of Charm Quark Pairs from Gluons in Hadronic Decays
The rate of secondary charm-quark-pair production has been measured in 4.4 million hadronic Z0 decays collected by OPAL. By selecting events with three jets and tagging charmed hadrons in the gluon jet candidate using leptons and charged D* mesons, the average number of secondary charm-quark pairs per hadronic event is found to be (3.20+-0.21+-0.38)x10-2
Finishing the euchromatic sequence of the human genome
The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers âŒ99% of the euchromatic genome and is accurate to an error rate of âŒ1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead
Search for dark matter produced in association with bottom or top quarks in âs = 13 TeV pp collisions with the ATLAS detector
A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fbâ1 of protonâproton collision data recorded by the ATLAS experiment at âs = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements
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