547 research outputs found

    It’s not just cricket – the portfolios of the English/Welsh cricket teams

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    Purpose – The purpose of this paper is to examine the range of products and services offered by the professional cricket teams in the UK. To what extent have they added to their core activity of staging matches? Design/methodology/approach – A case study approach was adopted using both quantitative and qualitative methods. The accounts of the 18 teams and the governing body were reviewed to analyse the flow of income within the sport and categorize its sources. Interviews were then held with senior commercial staff of 12 of the teams. Findings – All of the teams had engaged in brand extensions, offering a category of products/services that were more concerned with facilities utilization. These were not aimed at fans of the teams, as with conventional sporting extensions, but at a different market. Though there was some overlap between customers. The use of alliances and joint ventures was common in the provision of these lines. Research limitations/implications – The research is limited to a single sport, with the portfolio being investigated from a management as opposed to a consumer perspective. The findings are likely to be relevant to other sports teams, particularly small and medium-sized enterprises, where income from the sport alone is insufficient to maintain professional status. Originality/value – This paper adds to the previous research on typologies of brand extensions in sport by incorporating product/service lines that were aimed at resource utilization and different markets

    Global 21cm signal experiments: a designer's guide

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    [Abridged] The spatially averaged global spectrum of the redshifted 21cm line has generated much experimental interest, for it is potentially a direct probe of the Epoch of Reionization and the Dark Ages. Since the cosmological signal here has a purely spectral signature, most proposed experiments have little angular sensitivity. This is worrisome because with only spectra, the global 21cm signal can be difficult to distinguish from foregrounds such as Galactic synchrotron radiation, as both are spectrally smooth and the latter is orders of magnitude brighter. We establish a mathematical framework for global signal data analysis in a way that removes foregrounds optimally, complementing spectra with angular information. We explore various experimental design trade-offs, and find that 1) with spectral-only methods, it is impossible to mitigate errors that arise from uncertainties in foreground modeling; 2) foreground contamination can be significantly reduced for experiments with fine angular resolution; 3) most of the statistical significance in a positive detection during the Dark Ages comes from a characteristic high-redshift trough in the 21cm brightness temperature; and 4) Measurement errors decrease more rapidly with integration time for instruments with fine angular resolution. We show that if observations and algorithms are optimized based on these findings, an instrument with a 5 degree beam can achieve highly significant detections (greater than 5-sigma) of even extended (high Delta-z) reionization scenarios after integrating for 500 hrs. This is in contrast to instruments without angular resolution, which cannot detect gradual reionization. Abrupt ionization histories can be detected at the level of 10-100's of sigma. The expected errors are also low during the Dark Ages, with a 25-sigma detection of the expected cosmological signal after only 100 hrs of integration.Comment: 34 pages, 30 figures. Replaced (v2) to match accepted PRD version (minor pedagogical additions to text; methods, results, and conclusions unchanged). Fixed two typos (v3); text, results, conclusions etc. completely unchange

    Modelling trust in service relationships: a transnational perspective

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    Purpose – This empirical paper aims to assess the multi-dimensional nature of trust in service relationships. Although trust is deemed to be important for managing service relationships there is a dearth of research looking at its multidimensional nature outside of Western markets. Design/methodology/approach – The study is undertaken in three countries: UK, Hong Kong and India (September to November 2010). The sample consists of more than 300 sample members from across the three countries with an approximately even split between each. Findings – The findings show that cognitive trust does not significantly impact affective trust, but the other relationships in the model are supported. Customer's disposition to trust impacts both cognitive and overall trust. Research limitations/implications – The research provides direction for services marketing scholars and practitioners, but there are limitations because not all types of financial institutions are evaluated. Practical implications – The practical implications of this work are profound given that transnational operations of most retail banks. Understanding trust dimensions aids relationship managers to devise differentiated strategies to build/re-build and maintain long-term trust relationships with customers. Originality/value – This work extends the understanding of relationships, but by rooting the work in retail banking it provides new insights for academics and practitioners. For service marketing scholars, this study calls into question some of the multi-dimensional nature of trust and for practitioners it can help aid strategy development

    Cosmology with the Highly Redshifted 21cm Line

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    In addition to being a probe of Cosmic Dawn and Epoch of Reionization astrophysics, the 21cm line at z>6z>6 is also a powerful way to constrain cosmology. Its power derives from several unique capabilities. First, the 21cm line is sensitive to energy injections into the intergalactic medium at high redshifts. It also increases the number of measurable modes compared to existing cosmological probes by orders of magnitude. Many of these modes are on smaller scales than are accessible via the CMB, and moreover have the advantage of being firmly in the linear regime (making them easy to model theoretically). Finally, the 21cm line provides access to redshifts prior to the formation of luminous objects. Together, these features of 21cm cosmology at z>6z>6 provide multiple pathways toward precise cosmological constraints. These include the "marginalizing out" of astrophysical effects, the utilization of redshift space distortions, the breaking of CMB degeneracies, the identification of signatures of relative velocities between baryons and dark matter, and the discovery of unexpected signs of physics beyond the Λ\LambdaCDM paradigm at high redshifts.Comment: Science white paper submitted to Decadal 2020 surve

    B_{s}^{0}\rightarrow D_{s}^{(*)+}D_{s}^{(*)-} decays in the LHCb detector, and a study of radiation damage in the Vertex Locator

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    The Large Hadron Collider (LHC) is currently the highest energy particle accelerator in the world, and is designed to collide protons at a centre-of-mass energy up to 14TeV. The LHCb experiment is one of four main experiments situated on the LHC ring, and is designed for making precision measurements of the decays of particles containing a b quark. In order to perform these measurements, it is necessary to precisely measure production and decay vertices in the collisions, and LHCb makes use of the Vertex Locator (VELO) to do this. The need for the VELO to be very close to the proton collision point requires it to be able to withstand high levels of radiation. This thesis presents studies of the damage suffered by the VELO during the full first run period of the LHC, with comparisons to the predicted levels of damage. It is observed that the VELO is performing well despite the radiation damage, and should continue to do so until the planned end of its operation. This thesis also presents the full analysis of the measurement of the branching fraction of the B_{s}^{0}\rightarrow~D_{s}^{(\ast)+}D_{s}^{(\ast)-} decay. This measurement is of interest theoretically as it may provide information about B_{s} oscillations, a phenomenon where B_{s} mesons spontaneously change to their anti-B_{s} anti-matter counterpart, and back. The analysis is performed on the full LHCb 2011 data set, consisting of approximately 1.1fb-1 of proton-proton collisions at centre-of-mass energy of 7TeV. The branching fraction is measured relative to the decay B^{0}\rightarrow D_{s}^{+}D^{-} in order to reduce the systematic uncertainty on the result, and is found to be: \BF(B_{s}^{0}\rightarrow~D_{s}^{(\ast)+}D_{s}^{(\ast)-}) = (3.07 \pm 0.10 (stat.) \pm 0.23 (sys.) \pm 0.34 (norm.))\%. This result is consistent with, and more precise than, all previous experimental determinations, and also the theoretical prediction

    Neoadjuvant cisplatin and fluorouracil versus epirubicin, cisplatin, and capecitabine followed by resection in patients with oesophageal adenocarcinoma (UK MRC OE05): an open-label, randomised phase 3 trial.

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    BACKGROUND: Neoadjuvant chemotherapy before surgery improves survival compared with surgery alone for patients with oesophageal cancer. The OE05 trial assessed whether increasing the duration and intensity of neoadjuvant chemotherapy further improved survival compared with the current standard regimen. METHODS: OE05 was an open-label, phase 3, randomised clinical trial. Patients with surgically resectable oesophageal adenocarcinoma classified as stage cT1N1, cT2N1, cT3N0/N1, or cT4N0/N1 were recruited from 72 UK hospitals. Eligibility criteria included WHO performance status 0 or 1, adequate respiratory, cardiac, and liver function, white blood cell count at least 3 × 10(9) cells per L, platelet count at least 100 × 10(9) platelets per L, and a glomerular filtration rate at least 60 mL/min. Participants were randomly allocated (1:1) using a computerised minimisation program with a random element and stratified by centre and tumour stage, to receive two cycles of cisplatin and fluorouracil (CF; two 3-weekly cycles of cisplatin [80 mg/m(2) intravenously on day 1] and fluorouracil [1 g/m(2) per day intravenously on days 1-4]) or four cycles of epirubicin, cisplatin, and capecitabine (ECX; four 3-weekly cycles of epirubicin [50 mg/m(2)] and cisplatin [60 mg/m(2)] intravenously on day 1, and capecitabine [1250 mg/m(2)] daily throughout the four cycles) before surgery, stratified according to centre and clinical disease stage. Neither patients nor study staff were masked to treatment allocation. Two-phase oesophagectomy with two-field (abdomen and thorax) lymphadenectomy was done within 4-6 weeks of completion of chemotherapy. The primary outcome measure was overall survival, and primary and safety analyses were done in the intention-to-treat population. This trial is registered with the ISRCTN registry (number 01852072) and ClinicalTrials.gov (NCT00041262), and is completed. FINDINGS: Between Jan 13, 2005, and Oct 31, 2011, 897 patients were recruited and 451 were assigned to the CF group and 446 to the ECX group. By Nov 14, 2016, 327 (73%) of 451 patients in the CF group and 302 (68%) of 446 in the ECX group had died. Median survival was 23·4 months (95% CI 20·6-26·3) with CF and 26·1 months (22·5-29·7) with ECX (hazard ratio 0·90 (95% CI 0·77-1·05, p=0·19). No unexpected chemotherapy toxicity was seen, and neutropenia was the most commonly reported event (grade 3 or 4 neutropenia: 74 [17%] of 446 patients in the CF group vs 101 [23%] of 441 people in the ECX group). The proportions of patients with postoperative complications (224 [56%] of 398 people for whom data were available in the CF group and 233 [62%] of 374 in the ECX group; p=0·089) were similar between the two groups. One patient in the ECX group died of suspected treatment-related neutropenic sepsis. INTERPRETATION: Four cycles of neoadjuvant ECX compared with two cycles of CF did not increase survival, and cannot be considered standard of care. Our study involved a large number of centres and detailed protocol with comprehensive prospective assessment of health-related quality of life in a patient population confined to people with adenocarcinomas of the oesophagus and gastro-oesophageal junction (Siewert types 1 and 2). Alternative chemotherapy regimens and neoadjuvant chemoradiation are being investigated to improve outcomes for patients with oesophageal carcinoma. FUNDING: Cancer Research UK and Medical Research Council Clinical Trials Unit at University College London

    Glacial meltwater identification in the Amundsen Sea

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    Pine Island Ice Shelf, in the Amundsen Sea, is losing mass because of warm ocean waters melting the ice from below. Tracing meltwater pathways from ice shelves is important for identifying the regions most affected by the increased input of this water type. Here, optimum multiparameter analysis is used to deduce glacial meltwater fractions from water mass characteristics (temperature, salinity, and dissolved oxygen concentrations), collected during a ship-based campaign in the eastern Amundsen Sea in February–March 2014. Using a one-dimensional ocean model, processes such as variability in the characteristics of the source water masses on shelf and biological productivity/respiration are shown to affect the calculated apparent meltwater fractions. These processes can result in a false meltwater signature, creating misleading apparent glacial meltwater pathways. An alternative glacial meltwater calculation is suggested, using a pseudo–Circumpolar Deep Water endpoint and using an artificial increase in uncertainty of the dissolved oxygen measurements. The pseudo–Circumpolar Deep Water characteristics are affected by the under ice shelf bathymetry. The glacial meltwater fractions reveal a pathway for 2014 meltwater leading to the west of Pine Island Ice Shelf, along the coastline

    Vigorous lateral export of the meltwater outflow from beneath an Antarctic ice shelf

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    The instability and accelerated melting of the Antarctic Ice Sheet are among the foremost elements of contemporary global climate change1, 2. The increased freshwater output from Antarctica is important in determining sea level rise1, the fate of Antarctic sea ice and its effect on the Earth’s albedo4, 5, ongoing changes in global deep-ocean ventilation6, and the evolution of Southern Ocean ecosystems and carbon cycling7, 8. A key uncertainty in assessing and predicting the impacts of Antarctic Ice Sheet melting concerns the vertical distribution of the exported meltwater. This is usually represented by climate-scale models3–5, 9 as a near-surface freshwater input to the ocean, yet measurements around Antarctica reveal the meltwater to be concentrated at deeper levels10, 11, 12, 13, 14. Here we use observations of the turbulent properties of the meltwater outflows from beneath a rapidly melting Antarctic ice shelf to identify the mechanism responsible for the depth of the meltwater. We show that the initial ascent of the meltwater outflow from the ice shelf cavity triggers a centrifugal overturning instability that grows by extracting kinetic energy from the lateral shear of the background oceanic flow. The instability promotes vigorous lateral export, rapid dilution by turbulent mixing, and finally settling of meltwater at depth. We use an idealized ocean circulation model to show that this mechanism is relevant to a broad spectrum of Antarctic ice shelves. Our findings demonstrate that the mechanism producing meltwater at depth is a dynamically robust feature of Antarctic melting that should be incorporated into climate-scale models
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