2,929 research outputs found

    Logic, Language, Information and Computation

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    Managerial Work in a Practice-Embodying Institution - The role of calling, the virtue of constancy

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    What can be learned from a small scale study of managerial work in a highly marginal and under-researched working community? This paper uses the ‘goods-virtues-practices-institutions’ framework to examine the managerial work of owner-directors of traditional circuses. Inspired by MacIntyre’s arguments for the necessity of a narrative understanding of the virtues, interviews explored how British and Irish circus directors accounted for their working lives. A purposive sample was used to select subjects who had owned and managed traditional touring circuses for at least 15 years, a period in which the economic and reputational fortunes of traditional circuses have suffered badly. This sample enabled the research to examine the self-understanding of people who had, at least on the face of it, exhibited the virtue of constancy. The research contributes to our understanding of the role of the virtues in organizations by presenting evidence of an intimate relationship between the virtue of constancy and a ‘calling’ work orientation. This enhances our understanding of the virtues that are required if management is exercised as a domain-related practice

    Early infant feeding practices of mothers attending a postnatal clinic in Ga-Rankuwa

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    Background: Despite the recommendation of the World Health Organization (WHO) of exclusive breastfeeding for the first 4-6 months of life, several South African studies on infant feeding practices have shown that the introduction of feeds other than breastmilk before 4 months is a common practice. The timing of initiation of complementary feeding within the first 4 months is, however, difficult to determine.Objective: To determine feeding practices of mothers of infants 8 weeks of age or younger, attending the postnatal clinic at Ga-Rankuwa Hospital.Methods: A cross-sectional study of mothers attending the postnatal clinic at Ga-Rankuwa Hospital using a standardised interview schedule.Results: A total of 150 mothers were interviewed. All infants in the sample were younger than 9 weeks of age. The mean age of the sample was 37.4 (5.2 weeks) ±12.1 days. Although 99% of infants were breastfed, exclusive breastfeeding was practised by only 4.6% of the sample. Water was given to 88%, infant formula to 43% and complementary feeds to 37%. Forty-six per cent of mothers said that the reason for giving water to their babies was to prevent constipation. Infant formula was added because mothers believed that their breastmilk was insufficient for their infants\' needs. Of the complemented infants, 91% had received complementary feeds before 7 weeks of age. Thin maize meal porridge providing less than 1 kJ/ml and negligible protein was the most commonly given first food.Conclusion: Breastfeeding was almost universal, exclusive breastfeeding was the exception. Mixed feeding was common, with the introduction of complementary feeds occurring within the first 2 months of life, well before the WHO recommendations.South African Journal of Clinical Nutrition Vol. 18(2) 2005: 70-7

    A cluster-randomised controlled trial to test the efficacy of facemasks in preventing respiratory viral infection among Hajj pilgrims

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    BACKGROUND: Cost-effective interventions are needed to control the transmission of viral respiratory tract infections (RTIs) in mass gatherings. Facemasks are a promising preventive measure, however, previous studies on the efficacy of facemasks have been inconclusive. This study proposes a large-scale facemask trial during the Hajj pilgrimage in Saudi Arabia and presents this protocol to illustrate its feasibility and to promote both collaboration with other research groups and additional relevant studies. METHODS/DESIGN: A cluster-randomised controlled trial is being conducted to test the efficacy of standard facemasks in preventing symptomatic and proven viral RTIs among pilgrims during the Hajj season in Mina, Mecca, Saudi Arabia. The trial will compare the 'supervised use of facemasks' versus 'standard measures' among pilgrims over several Hajj seasons. Cluster-randomisation will be done by accommodation tents with a 1:1 ratio. For the intervention tents, free facemasks will be provided to be worn consistently for 7days. Data on flu-like symptoms and mask use will be recorded in diaries. Nasal samples will be collected from symptomatic recruits and tested for nucleic acid of respiratory viruses. Data obtained from questionnaires, diaries and laboratory tests will be analysed to examine whether mask use significantly reduces the frequency of laboratory-confirmed respiratory viral infection and syndromic RTI as primary outcomes. CONCLUSIONS: This trial will provide valuable evidence on the efficacy of standard facemask use in preventing viral respiratory tract infections at mass gatherings. This study is registered at the Australian New Zealand Clinical Trials Registry (ANZCTR), ACTRN: ACTRN12613001018707 (http://www.anzctr.org.au)

    Actes du CongrÚs CollÚges célébrations 92

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    Également disponible en version papierTitre de l'Ă©cran-titre (visionnĂ© le 19 aoĂ»t 2009

    Chromosomal damage in air crew members of international flights: a preliminary report

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    Air crew members of international flights are exposed to ionizing radiations originated from the collision of cosmic particles with atoms of the atmosphere. The degree of exposure varies according to the altitude, latitude, and solar activity. The cytogenetical analysis showed a significant increase of dicentric chromosomes (14.5 ± 0.76 per 1,000 cells) in active air crew members as well as in retired air crew members (7.5 ± 0.59 per 1,000 cells) in relation to controls (0.5 ± 0.05 per 1,000 cells). In active members the frequency of ring chromosomes was also increased (2.0 ± 0.31 per 1,000 cells) but not found in retired crew members. These observations suggest a high degree of exposure to ionizing radiations of air crew personnel. Consequently, the cytogenetic follow-up of air crews chronically exposed to low radiation doses is an open field for further investigations.Instituto de Genética Veterinari

    Chromosomal damage in air crew members of international flights: a preliminary report

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    Air crew members of international flights are exposed to ionizing radiations originated from the collision of cosmic particles with atoms of the atmosphere. The degree of exposure varies according to the altitude, latitude, and solar activity. The cytogenetical analysis showed a significant increase of dicentric chromosomes (14.5 ± 0.76 per 1,000 cells) in active air crew members as well as in retired air crew members (7.5 ± 0.59 per 1,000 cells) in relation to controls (0.5 ± 0.05 per 1,000 cells). In active members the frequency of ring chromosomes was also increased (2.0 ± 0.31 per 1,000 cells) but not found in retired crew members. These observations suggest a high degree of exposure to ionizing radiations of air crew personnel. Consequently, the cytogenetic follow-up of air crews chronically exposed to low radiation doses is an open field for further investigations.Instituto de Genética Veterinari

    Artificial Intelligence as a Means to Moral Enhancement

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    This paper critically assesses the possibility of moral enhancement with ambient intelligence technologies and artiïŹcial intelligence presented in Savulescu and Maslen (2015). The main problem with their proposal is that it is not robust enough to play a normative role in users’ behavior. A more promising approach, and the one presented in the paper, relies on an artiïŹ-cial moral reasoning engine, which is designed to present its users with moral arguments grounded in ïŹrst-order normative theories, such as Kantianism or utilitarianism, that reason-responsive people can be persuaded by. This proposal can play a normative role and it is also a more promising avenue towards moral enhancement. It is more promising because such a system can be designed to take advantage of the sometimes undue trust that people put in automated technologies. We could therefore expect a well-designed moral reasoner system to be able to persuade people that may not be persuaded by similar arguments from other people. So, all things considered, there is hope in artiïŹcial intelli-gence for moral enhancement, but not in artiïŹcial intelligence that relies solely on ambient intelligence technologies

    On the isolated points in the space of groups

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    We investigate the isolated points in the space of finitely generated groups. We give a workable characterization of isolated groups and study their hereditary properties. Various examples of groups are shown to yield isolated groups. We also discuss a connection between isolated groups and solvability of the word problem.Comment: 30 pages, no figure. v2: minor changes, published version from March 200

    Celebrity advocacy and public engagement: the divergent uses of celebrity

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    This article sounds a cautionary note about the instrumental use of celebrity advocacy to (re)engage audiences in public life. It begins by setting out the steps necessary to achieve public recognition of a social problem requiring a response. It then presents empirical evidence which suggests that those most interested in celebrity, while also paying attention to the main stories of the day, are also least likely to participate in any form of politics. However, this does not rule out the possibility of forging a link between celebrity and public engagement, raising questions about what would potentially sustain such an articulation. After discussing the broader cultural context of celebrity advocacy in which perceived authenticity functions valorised form of symbolic capital, the article outlines a phenomenological approach to understanding the uses audiences make of celebrity advocacy, using the example of a Ewan McGregor UNICEF appeal for illustration. It concludes that while media encounters with celebrities can underpin a viewer’s sense of self, this is as likely to lead to the rationalisation of inaction as a positive response to a charity appeal
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