382 research outputs found

    Final design report: Spoiler Alert! Active aero for Formula SAE, Senior Design Spring 2022

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    The purpose of this Senior Design Project was to design and build an actively actuated front wing for the Oklahoma State Formula SAE competition car. This was accomplished using multiple engineering analysis and design methods, as well as multiple methods of product manufacturing and testing. The Aerodynamics, Mechanical, Electrical, and Testing sub-teams worked together to design and build a carbon fiber multi-tier actively actuated front wing. The results of testing showed that the wing decreased overall lap time, translating to up to an 8-place improvement in the skid pad competition, as well as up to a 12-place improvement in the autocross competition

    Avelines's Hole: An Unexpected Twist in the Tale

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    Aveline’s Hole is the largest known Early Mesolithic cemetery in Britain, previously thought to have no evidence for subsequent burial activity. Thus, it came as some surprise when the results of a recent ancient human DNA study found that, of four individuals from the site yielding genomic data, two showed high levels of ancestry from Early Neolithic Aegean farmers. Radiocarbon dating confirmed that these two individuals were indeed British Early Neolithic in date, while the other two had the expected ‘Western Hunter-Gatherer’ ancestry genomic signatures, with the two groups separated in time by nearly five millennia. Moreover, the two Neolithic samples were both crania, while the two Mesolithic samples were long bones. Given the absence of Neolithic dates in the previous sizeable dating programme combined with the difficult history of the collection, i.e., the WWII bombing of its Bristol repository, this raised the question of whether the crania might in fact be from another site. As we show in this paper, a very strong case can be made that the crania do in fact originate from Aveline’s Hole. Additional radiocarbon dating (14 in total, including the above mentioned four) suggests that about half the cranial elements from the site fall within the Early Neolithic, though there is still no evidence for the deposition of post-cranial remains at this time, nor is there any burial evidence in the long intervening period between the Early Mesolithic and the Early Neolithic. Intriguingly, craniometric analyses of legacy data including three crania lost in the bombing suggest that one, Aveline’s Hole ‘A’, may be Upper Palaeolithicin date. As part of this re-investigation of the human remains from the site, we present new stable carbon and nitrogen isotope analyses that differ significantly from those originally reported for the Early Mesolithic, with the new results more in keeping with other isotopic data for this period. We also present new stable carbon and nitrogen isotope results on human remains from the nearby Early Mesolithic sites of Badger Hole and Greylake, and report new Early Mesolithic radiocarbon dates and isotopic data from Cannington Park Quarry. Clear isotopic differences between the Early Mesolithic and the Neolithic remains can be seen, but these are argued to relate primarily to shifts in the underlying ecological baselines, rather than to differences in types of foods consumed (with the caveat that terrestrial wild and domesticated foods will be isotopically similar). The genetic data are summarised, giving evidence not only of the ancestry of Mesolithic and Neolithic individuals from Aveline’s Hole, but also suggesting something of their physical appearance. The degree of population replacement now indicated by ancient DNA suggests that there was a substantial migration of farmers into Britain at the start of the Neolithic. This new information demonstrates the archaeological importance of Aveline's Hole for both the Mesolithic and Neolithic periods."Funding for nine of the new radiocarbon dates from Aveline’s Hole reported here was provided by NERC’s NRCF programme (NF/2016/2/16). The ancient DNA study was funded by the Wellcome Trust (100713/Z/12/Z), as were three new radiocarbon dates from Aveline’s Hole. The isotopic analysis of the Badger Hole human remains was funded as part of a NERC studentship (NE/K500987/1)."https://www.ubss.org.uk/resources/proceedings/vol28/UBSS_Proc_28_1_9-63.pd

    GA4GH: International policies and standards for data sharing across genomic research and healthcare.

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    The Global Alliance for Genomics and Health (GA4GH) aims to accelerate biomedical advances by enabling the responsible sharing of clinical and genomic data through both harmonized data aggregation and federated approaches. The decreasing cost of genomic sequencing (along with other genome-wide molecular assays) and increasing evidence of its clinical utility will soon drive the generation of sequence data from tens of millions of humans, with increasing levels of diversity. In this perspective, we present the GA4GH strategies for addressing the major challenges of this data revolution. We describe the GA4GH organization, which is fueled by the development efforts of eight Work Streams and informed by the needs of 24 Driver Projects and other key stakeholders. We present the GA4GH suite of secure, interoperable technical standards and policy frameworks and review the current status of standards, their relevance to key domains of research and clinical care, and future plans of GA4GH. Broad international participation in building, adopting, and deploying GA4GH standards and frameworks will catalyze an unprecedented effort in data sharing that will be critical to advancing genomic medicine and ensuring that all populations can access its benefits

    Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

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    Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

    Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

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    This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

    Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

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    One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

    Search for stop and higgsino production using diphoton Higgs boson decays

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    Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass
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