288 research outputs found
Registration of the transition radiation with GaAs detector: Data/MC comparison
No full textNew developments of pixel detectors based on GaAs sensors offer effective registration of the transition radiation (TR) X-rays and perform simultaneous measurements of their energies and emission angles. This unique feature opens new possibilities for particle identi cation on the basis of maximum available information about generated TR photons. Results of studies of TR energy-angular distributions using a 500 qm thick GaAs sensor attached to a Timepix3 chip are presente
A selfless response to an illusory world : a comparative study of Śāntideva and Śaṅkara
No full textThis thesis compares the ethical theories of two 8th century Indian philosophers, Śāntideva and Śaṅkara. In order to construct their ethics from philosophical premises, a metaphysical approach has been taken. A comparison of these two philosophers has never been made, nor has there been any major comparative study of the ethics of their two traditions, Indian Madhyamaka Buddhism and Advaita Vedānta. In opening the way for further comparisons between these two schools, I wish to question the manner in which scholars have consistently divided them along self/non-self (ātman/anātman) lines. The key to the comparison is thus the notion of individuated self (jīva) rather than the less personal ātman. Once the full implications of Advaita metaphysics are understood, whereby all consciousness is ultimately that of the one brahman, then, at the individuated level of consciousness, the ethical situation is strangely similar to the Buddhist with their notion of non-self (anātman). We thus have two rival schools positing a radical notion of the individual as having no unified centre of moral agency. Both schools adopt a methodology of Two Truths, the relative and the ultimate, in order to allow for both a provisional ethical framework and the potential for world transcendence. It was decided that the most convenient form of ethical comparison was a qualified form of altruism, here called “constructive altruism”. This is a form of other-regarding ethics which allows for the concept of a non-giver, i.e. a person who has realised selflessness and has seen through the “illusion” of individuation. This person then takes it upon himself to construct the other so as to gain a focus for the compassionate activity of teaching. The aim of such teaching is the liberation (mokṣa) of freedom-seeking disciples from this cyclic existence (saṃsāra) and its prevalent potential for suffering (duḥkha)
The development of a relationship marketing framework that captures the delivery of value in entrepreneurial SMEs
No full textThere are a number of environmental pressures facing SMEs and the high failure rates
amongst young SMEs highlights the need for research to develop a framework that will
permit SMEs to achieve growth with a minimal risk of failure. This research will show
that both relationship marketing and entrepreneurship have significantly contributed to
allowing entrepreneurial SMEs to pursue a low risk strategy of growth through pursuing
a customer retention, development and targeted acquisition strategy. To understand the
nature of entrepreneurial SMEs and the factors influencing growth.
The author cites literature that argues entrepreneurship is not an 'absolute' and thus
believes that less entrepreneurial firms have the potential to learn from their more
successful counterparts. Whilst this does offer some specific management suggestions,
the author also recognises that the task is not an easy one, for the SME has not only to
create an internal culture that is capable of embracing relationship marketing but one that
also enables it to act in an entrepreneurial fashion. Despite these challenges the author
will capitalise on the research findings to develop a framework for successfully adopting
relationship marketing and entrepreneurial behaviour, to assist SMEs to overcome the
hurdle of high failure rate amongst SMEs.
The research has focused on the business services industry, since this sector is
experiencing the highest growth. In the main this sector covered printing, marketing
services and computer services, and so would be offering clients both a pure service and a
product / service mix. Additionally this sector because of its service nature would have a
high contact with its customer base. A sampling frame was developed that resulted in
identifying 102 SMEs in West Yorkshire (UK) that met the criteria for selection. An
initial quantitative survey was administered that provided statistical evidence that
entrepreneurial SMEs had a greater relationship marketing orientation. The results from
the survey were further investigated through in-depth semi structured interviews to reveal
a richer picture of the phenomenon
The private sector and family planning in developing countries
No full textWhile a private sector exists in every society, the nature of its involvement in family planning service delivery varies widely across countries. This paper reviews the role of the private sector in family planning and discusses how much more of the demand for contraception can be met through the private sector, thereby reducing government's subsidies for contraception. Following the introduction, section 2 discusses the characteristics of private sector supply, with a strong emphasis on for-profit producers and distributors of contraceptives. Section 3 describes the distribution of users across sources and addresses the issue of pricing at public, for-profit and NGO sources of family planning services. In section 4 the experience to date with private sector approaches is outlined to provide a sense of what has been and is currently going on in public and and donor efforts to harness and collaborate with the private sector. Section 5 presents alternative means for government and donors to promote private sector activity in family planning, and suggests some of the costs of a greater private sector role. The final section summarizes and concludes the paper.Health Monitoring&Evaluation,Adolescent Health,Agricultural Knowledge&Information Systems,Health Economics&Finance,ICT Policy and Strategies
Search for new resonances decaying to a or boson and a Higgs boson in the , , and channels with collisions at TeV with the ATLAS detector
No full textSee paper for full list of authors, 18 pages (plus author list + cover pages: 36 pages total), 13 figures, 1 table. Submitted to PLB. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2015-18/International audienceA search is presented for new resonances decaying to a or boson and a Higgs boson in the , , and channels in collisions at TeV with the ATLAS detector at the Large Hadron Collider using a total integrated luminosity of 3.2 fb. The search is conducted by looking for a localized excess in the / invariant or transverse mass distribution. No significant excess is observed, and the results are interpreted in terms of constraints on a simplified model based on a phenomenological Lagrangian of heavy vector triplets
Search for non-resonant Higgs boson pair production in the bbℓνℓν final state with the ATLAS detector in pp collisions at s=13 TeV
No full textA search for non-resonant Higgs boson pair production, as predicted by the Standard Model, is presented, where one of the Higgs bosons decays via the H→bb channel and the other via one of the H→WW⁎/ZZ⁎/ττ channels. The analysis selection requires events to have at least two b-tagged jets and exactly two leptons (electrons or muons) with opposite electric charge in the final state. Candidate events consistent with Higgs boson pair production are selected using a multi-class neural network discriminant. The analysis uses 139 fb−1 of pp collision data recorded at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. An observed (expected) upper limit of 1.2 (0.9−0.3 +0.4) pb is set on the non-resonant Higgs boson pair production cross-section at 95% confidence level, which is equivalent to 40 (29−9 +14) times the value predicted in the Standard Model. © 2019 The Author(s
Search for dark matter produced in association with a hadronically decaying vector boson in pp collisions at =13 TeV with the ATLAS detector
No full textSee paper for full list of authors - 10 pages plus author list + cover pages (30 pages total), 5 figures, 2 tables, submitted to PLB, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2015-08/International audienceA search is presented for dark matter produced in association with a hadronically decaying W or Z boson using 3.2 /fb of pp collisions at =13 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with a hadronic jet compatible with a W or Z boson and with large missing transverse momentum are analysed. The data are consistent with the Standard Model predictions and are interpreted in terms of both an effective field theory and a simplified model containing dark matter
Measurement of the cross section for inclusive isolated-photon production in collisions at TeV using the ATLAS detector
No full textSee paper for full list of authors - 36 pages in total, author list starting page 20, 3 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/STDM-2016-08/International audienceInclusive isolated-photon production in collisions at a centre-of-mass energy of 13 TeV is studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 3.2 fb. The cross section is measured as a function of the photon transverse energy above 125 GeV in different regions of photon pseudorapidity. Next-to-leading-order perturbative QCD and Monte Carlo event-generator predictions are compared to the cross-section measurements and provide an adequate description of the data
Measurement of the total cross section from elastic scattering in collisions at TeV with the ATLAS detector
No full textSee paper for full list of authors - 17 pages plus author list + cover page (35 pages total), 4 figures, 2 tables, submitted to PLB. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2015-22/International audienceA measurement of the total cross section at the LHC at TeV is presented. An integrated luminosity of b was accumulated in a special run with high- beam optics to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable . The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differential elastic cross section in the range from GeV to GeV to extrapolate , the total cross section, , is measured via the optical theorem to be: where the first error is statistical, the second accounts for all experimental systematic uncertainties and the last is related to uncertainties in the extrapolation . In addition, the slope of the exponential function describing the elastic cross section at small is determined to be
High-ET isolated-photon plus jets production in pp collisions at s√= 8 TeV with the ATLAS detector
No full textSee paper for ful list of authors - 59 pages in total, author list starting page 43, 16 figures, 5 tables, submitted to Nuclear Physics B, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2015-11/International audienceThe dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity of 20.2 fb−1. Measurements of isolated-photon plus jets cross sections are presented as functions of the photon and jet transverse momenta. The cross sections as functions of the azimuthal angle between the photon and the jets, the azimuthal angle between the jets, the photon-jet invariant mass and the scattering angle in the photon-jet centre-of-mass system are presented. The pattern of QCD radiation around the photon and the leading jet is investigated by measuring jet production in an annular region centred on each object; enhancements are observed around the leading jet with respect to the photon in the directions towards the beams. The experimental measurements are compared to several different theoretical calculations, and overall a good description of the data is found
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