402 research outputs found

    A Taxonomy of Knowledge Spillovers for High-Tech Start-ups Development

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    Entrepreneurship is considered of utmost importance for national economic and industrial growth. A leading theory related to economic development is the Knowledge Spillover Theory of Entrepreneurship (KSTE), which aims to uncover the effects that economic agents have on the creation of new companies. By following the KSTE process, companies can commercialize and implement newly acquired knowledge in the market more quickly. Typically, economic growth evaluation is conducted at the country or regional level through global monitoring indexes, assessment on the generation of patents, and identification of the number of companies created. However, since knowledge is sometimes unattached to a physical document or item, it remains necessary to clarify a taxonomy and flow of knowledge spillovers at the individual level for start-ups in their first three to five years of development from the time that the company is funded. The purpose of this paper is to identify and discuss possible strategies for evaluating the effects of knowledge spillovers on start-ups in high-tech sections which, in turn, will aid the decision-making process of Chief Executive Officers (CEOs)

    A Taxonomy of Knowledge Spillovers for High-Tech Start-ups Development

    Get PDF
    Entrepreneurship is considered of utmost importance for national economic and industrial growth. A leading theory related to economic development is the Knowledge Spillover Theory of Entrepreneurship (KSTE), which aims to uncover the effects that economic agents have on the creation of new companies. By following the KSTE process, companies can commercialize and implement newly acquired knowledge in the market more quickly. Typically, economic growth evaluation is conducted at the country or regional level through global monitoring indexes, assessment on the generation of patents, and identification of the number of companies created. However, since knowledge is sometimes unattached to a physical document or item, it remains necessary to clarify a taxonomy and flow of knowledge spillovers at the individual level for start-ups in their first three to five years of development from the time that the company is funded. The purpose of this paper is to identify and discuss possible strategies for evaluating the effects of knowledge spillovers on start-ups in high-tech sections which, in turn, will aid the decision-making process of Chief Executive Officers (CEOs)

    The Effects of Knowledge Spillovers and Accelerator Programs on the Product Innovation of High-Tech Start-Ups: A Multiple Case Study

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    The Knowledge Spillover Theory of Entrepreneurship (KSTE) explores the effects that new knowledge and proximity have on the exploitation of entrepreneurial opportunities and the resultant creation of start-ups. This paper aims to identify the types of knowledge spillovers that affect entrepreneurs in the early stages of start-up development. A conceptual model is proposed, using a multi-case study approach involving High-Tech start-ups that have attended accelerator and incubator programmes in Greater London, United Kingdom (UK). The research involved 32 semistructured interviews with Chief Executive Officers (CEOs) and co-founders of start-up companies. Our findings suggest that entrepreneurs are influenced by various forms of knowledge spillover which assist in determining the strategic decision of the company, in terms of formation, including partnerships or alliances, allocation of Research and Development (R&D) budgets, and engagement in product innovation. Further observations confirm that High-tech start-ups focus on a fast pace of constant product innovation to cover identified gaps in the market. One significant finding is that start-ups use various technological platforms to access knowledge spillovers which challenges the ideas of geographical proximity present in existing KSTE understanding

    A Knowledge Spillover-based Approach to New Product Conceptualization

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    Entrepreneurship continues to be of the utmost importance in terms of national economic and industrial development. The formation of new companies (start-ups) encourages the creation of employment which in turn boosts economic activity. This growth, however, requires constant innovation within the start-ups. It is recognized that the process of innovation development is affected by a start-up‘s ability to capture knowledge spillovers which depends upon both external and internal factors. This paper proposes a conceptual model based on knowledge spillovers and their influence on the capture of new knowledge and its transformation into economic knowledge. We introduce and discuss various definitions, debating knowledge spillover theory, to provide a model based on classifications of cognitive and geographical proximity. Further discussion is provided against the product conceptualization process for start-ups

    Application of response surface methodology to laser-induced breakdown spectroscopy : influences of hardware configuration

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    Response Surface Methodology (RSM) was employed to optimise LIBS analysis of single crystal silicon at atmospheric pressure and under vacuum conditions (pressure ~10-6mbar). Multivariate analysis software (StatGraphics 5.1) was used to design and analyse several multi-level, full factorial RSM experiments. A Quality Factor (QF) was conceived as the response parameter for the experiments, representing the quality of the LIBS spectrum captured for a given hardware configuration. The QF enabled the hardware configuration to be adjusted so that a best compromise between resolution, signal intensity and signal noise could be achieved. The effect on the QF of simultaneously adjusting spectrometer gain, gate delay, gate width, lens position and spectrometer slit width was investigated, and the conditions yielding the best QF determined

    Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

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    A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

    Jet size dependence of single jet suppression in lead-lead collisions at sqrt(s(NN)) = 2.76 TeV with the ATLAS detector at the LHC

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    Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at sqrt(s) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 inverse microbarns, ATLAS has measured jets with a calorimeter over the pseudorapidity interval |eta| < 2.1 and over the transverse momentum range 38 < pT < 210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," Rcp. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. Rcp varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.Comment: 15 pages plus author list (30 pages total), 8 figures, 2 tables, submitted to Physics Letters B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2011-02

    Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

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    This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C versio

    Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

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    The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb^-1, these states are reconstructed through their radiative decays to Upsilon(1S,2S) with Upsilon->mu+mu-. In addition to the mass peaks corresponding to the decay modes chi_b(1P,2P)->Upsilon(1S)gamma, a new structure centered at a mass of 10.530+/-0.005 (stat.)+/-0.009 (syst.) GeV is also observed, in both the Upsilon(1S)gamma and Upsilon(2S)gamma decay modes. This is interpreted as the chi_b(3P) system.Comment: 5 pages plus author list (18 pages total), 2 figures, 1 table, corrected author list, matches final version in Physical Review Letter

    Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

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    We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb^-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.Comment: 8 pages plus author list (20 pages total), 8 figures, 1 table, final version to appear in Physics Letters
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