1,919 research outputs found

    Rapid System to Quantitatively Characterize the Airborne Microbial Community

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    Bioaerosols have been linked to a wide range of different allergies and respiratory illnesses. Currently, microorganism culture is the most commonly used method for exposure assessment. Such culture techniques, however, generally fail to detect between 90-99% of the actual viable biomass. Consequently, an unbiased technique for detecting airborne microorganisms is essential. In this Phase II proposal, a portable air sampling device his been developed for the collection of airborne microbial biomass from indoor (and outdoor) environments. Methods were evaluated for extracting and identifying lipids that provide information on indoor air microbial biomass, and automation of these procedures was investigated. Also, techniques to automate the extraction of DNA were explored

    Legislative Change and Strike Activity in Canada, 1926-1974

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    Le prĂ©sent article tente d'expliquer les variations Ă  long terme des grĂšves au Canada pendant la pĂ©riode 1926-1974. À cette fin, il examine les effets de diverses variables d'ordre Ă©conomique et organisationnel sur les types de conflits du travail. L'article s'efforce de replacer la grĂšve dans son contexte politique en observant comment les modifications apportĂ©es Ă  la lĂ©gislation fĂ©dĂ©rale du travail ont influencĂ© au cours de ces annĂ©es les types de grĂšves survenus au Canada. Ce qui ressort de cette Ă©tude, c'est que d'une part, le type de grĂšve varie en fonction de la situation Ă©conomique et de la capacitĂ© des syndicats d'imposer leurs revendications et que, d'autre part, la lĂ©gislation du travail influence le rapport entre les grĂšves et les deux variables qui viennent d'ĂȘtre citĂ©es.Les effets de nombreux facteurs Ă©conomiques ainsi que de l'activitĂ© syndicale ont Ă©tĂ© Ă©tudiĂ©s en fonction de trois mesures d'Ă©valuation des grĂšves, soit la frĂ©quence, l'amplitude et la durĂ©e de la grĂšve. On l'a fait pour l'ensemble de la pĂ©riode. Par la suite, les sĂ©ries chronologiques furent scindĂ©es en choisissant une mesure lĂ©gislative fĂ©dĂ©rale (le C.P. 1003) comme point de rupture. Cette analyse confirme l'importance d'une lĂ©gislation du travail favorable aux travailleurs en tant que variable dans le rapport entre la situation Ă©conomique et l'action syndicale d'une part, et les grĂšves, d'autre part. L'examen des donnĂ©es rĂ©vĂšle trĂšs clairement que les modifications apportĂ©es Ă  la lĂ©gislation en 1944 ont eu un impact significatif sur les causes dĂ©terminantes des grĂšves. Durant la pĂ©riode antĂ©rieure Ă  1944, l'Ă©tat de l'organisation syndicale Ă©tait la cause principale des variations dans les grĂšves. AprĂšs 1944, la nĂ©gociation collective s'est institutionnalisĂ©e et la situation Ă©conomique devint la cause principale de la dĂ©cision de dĂ©clencher et de poursuivre les grĂšves.The authors examine long term variations in the level of strike activity in Canada between 1926 and 1974 by examining the effects of several economic and organizational variables on the pattern of industrial conflict

    ‘Risking enchantment’: how are we to view the smoking person?

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    The idea of the smoking person portrayed in public health has been criticised as being based on too narrow a view of human nature. This article discusses that view: that of a person with a stable core and epiphenomenal ‘behaviours’ that can be removed by rational persuasion or Pavlovian manipulation, and examines social scientific critiques of it. The social sciences explore the meanings smoking has for individuals and portray human identity as malleable, the result of ongoing interactions with human and non-human others. Aspects of smokers’ experience revealed in qualitative research – descriptions of cigarettes as ‘companions’ or ‘friends’, deep reliance, sensual pleasure – are sometimes difficult to articulate but can be given full voice in the context of the literary arts. We explore some examples of these sources and argue that a complete picture of smoking meanings is impossible without reference to them. We take a pragmatic approach, following the philosopher William James, who argued that emotional and spiritual experiences contribute to the truth of human existence as much as material explanations, to suggest that this understanding should be part of a critical but supportive engagement with public health research in order to develop more nuanced and humane approaches to smoking cessation

    Establishing a meaningful human rights due diligence process for corporations : learning from experience of human rights impact assessment

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    The United Nations Special Representative of the Secretary-General on Business and Human Rights, Professor John Ruggie, has constructed a new international framework, which is set to become the cornerstone for all action on human rights and business at the international level. The principle of human rights due diligence (HRDD) is the central component of the corporate duty to respect human rights within that framework. This article argues that Ruggie's HRDD principle contains the majority of the core procedural elements that a reasonable human rights impact assessment (HRIA) process should incorporate. It is likely that the majority of corporations will adopt HRIA as a mechanism for meeting their due diligence responsibilities. However, in the context of the contentious debate around corporate human rights performance, the current state of the art in HRIA gives rise to concerns about the credibility and robustness of likely practice. Additional requirements are therefore essential if HRDD is to have a significant impact on corporate human rights performance – requirements in relation to transparency; external participation and verification; and independent monitoring and review
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