958 resultados para canadian oil companies


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Abstract. Background. The amount of research utilizing health information has increased dramatically over the last ten years. Many institutions have extensive biobank holdings collected over a number of years for clinical and teaching purposes, but are uncertain as to the proper circumstances in which to permit research uses of these samples. Research Ethics Boards (REBs) in Canada and elsewhere in the world are grappling with these issues, but lack clear guidance regarding their role in the creation of and access to registries and biobanks. Methods. Chairs of 34 REBS and/or REB Administrators affiliated with Faculties of Medicine in Canadian universities were interviewed. Interviews consisted of structured questions dealing with diabetes-related scenarios, with open-ended responses and probing for rationales. The two scenarios involved the development of a diabetes registry using clinical encounter data across several physicians' practices, and the addition of biological samples to the registry to create a biobank. Results. There was a wide range of responses given for the questions raised in the scenarios, indicating a lack of clarity about the role of REBs in registries and biobanks. With respect to the creation of a registry, a minority of sites felt that consent was not required for the information to be entered into the registry. Whether patient consent was required for information to be entered into the registry and the duration for which the consent would be operative differed across sites. With respect to the creation of a biobank linked to the registry, a majority of sites viewed biobank information as qualitatively different from other types of personal health information. All respondents agreed that patient consent was needed for blood samples to be placed in the biobank but the duration of consent again varied. Conclusion. Participants were more attuned to issues surrounding biobanks as compared to registries and demonstrated a higher level of concern regarding biobanks. As registries and biobanks expand, there is a need for critical analysis of suitable roles for REBs and subsequent guidance on these topics. The authors conclude by recommending REB participation in the creation of registries and biobanks and the eventual drafting of comprehensive legislation.

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Purpose: To evaluate the tamponade effect on the retina of a heavier-than-water silicone oil mixture and to compare it with the effect of silicone oil. Methods: Prospective, non-randomised, comparative pilot study. Phakic/pseudophakic patients with retinal detachment undergoing vitrectomy with Densiron 68 or silicone oil were recruited. The 'separation volume', defined as the relative volume of the space between intraocular tamponade agent and retina, was estimated using magnetic resonance imaging in both groups and compared. Results: Nine participants were included; 4 received silicone oil and 5 Densiron 68. The mean separation volume was statistically significantly larger in the silicone oil group (0.477 ± 0.419 cm ) than in the Densiron group (0.042 ± 0.013 cm ; p = 0.014). Conclusions: In this study Densiron achieved an excellent tamponade effect in the retina. © 2011 S. Karger AG, Basel.

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This report, a collaborative effort between the Filene Research Institute and the Credit Union Central of Canada, with participation from the Desjardins Group, follows on two recent governance projects: Tracking the Relationship Between Credit Union Governance and Performance and a three-part series by Professor Robert Hoel about how boards can add more value. Beyond these, the academic literature of corporate governance is well developed, so this study includes an in-depth review of financial institution governance research and calls out the differences between credit unions and other firms. Also, because surveys can only go so far in teasing out insights, the authors followed up with a dozen interviews with credit unions of all sizes across all three major North American credit union systems.

Because the report is survey-based, large swaths of the findings compare major and minor details of different (and often not-so-different) approaches to governance in the three systems and among differently sized credit unions. From those comparisons, some interesting differences emerge. For example, as a federated system, Desjardins excels at some aspects of board development and system governance in ways that the more atomized US and Canadian credit union systems do not.

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Purpose. To describe endothelial changes associated with emulsified silicone oil. Methods. Report of a case. Results. A 77-year-old man had multiple and diffuse clear vesicles on the endothelium of his left eye (LE). The cornea was clear and thin. He had undergone pars plana vitrectomy and intraocular silicone oil injection 5 years before presentation. Specular microscopy revealed numerous small bubbles of emulsified silicone oil and a mild degree of endothelial damage. Conclusion. Emulsified silicone oil can adhere to the endothelium and induce an apparent droplet-like endotheliopathy.

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The aim of the present study was to investigate the responses of phase I and II biotransformation enzymes and levels of PAHs in the Mediterranean mussel (Mytilus galloprovincialis, Lamarck, 1819) collected from three sites at different distance from an oil refinery. Phase I enzyme activities as NAD(P)H-cyt c red, NADH ferry red, B(a)PMO and phase II as UDPGT. GST were measured in digestive gland while 16 PAHs (US-EPA) in whole soft tissue. An added value to the data obtained in the present study rely on the RDA analysis which showed close correlations between PAHs levels and phase I enzyme activities in mussels collected in front of the refinery. And again a significant spatial correlation between B(a)P levels and NADPH-cyt c red activities was observed using linear models. No differences among sites for B(a) PMO and phase II GST activities were observed, while the application of UDPGT as biomarkers requires further investigation. (C) 2012 Elsevier Ltd. All rights reserved.

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A number of tetraalkylammonium and tetraalkylphosphonium amino acid based ionic liquids (AAILs) have been successfully used and recycled for the reactive extraction of naphthenic acids from crude oil and crude oil distillates. Spectral studies show that the mechanism by which this occurs is through the formation of a zwitterionic complex. Therein, the amino acid anion plays a key role in the formation of this complex. (C) 2013 Elsevier Ltd. All rights reserved.

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Employee voice has been an enduring theme within the employment relations literature.This article profiles the incidence of a range of direct and indirect employee voice mechanisms within multinational companies (MNCs) and, using an analytical framework, identifies a number of different approaches to employee voice. Drawing from a highly representative sample of MNCs in Ireland, we point to quite a significant level of engagement with all types of employee voice, both direct and indirect. Using the analytical framework, we find that the most common approach to employee voice was an indirect voice approach (i.e. the use of trade unions and/or non-union structures of collective employee representation). The regression analysis identifies factors such as country of origin, sector, the European Union Directive on Information and Consultation and date of establishment as having varying impacts on the approaches adopted by MNCs to employee voice. © The Author(s) 2010.

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Using a survey of multinational companies (MNCs), we investigate the factors that determine the use and scope of financial participation in MNCs operating in Ireland. We explore the impact of six factors - country of origin, age, employment size (Irish and worldwide employment size), ownership structure, trade union recognition and sector. Descriptive results find that financial participation schemes are quite common within MNCs in Ireland. Many of these schemes are only available to higher levels of staff. Multivariate analysis reveals that five out of the six factors (the exception was sector) had varying impacts on financial participation schemes. © 2012 Copyright Taylor and Francis Group, LLC.

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This article addresses the extent to which multinational companies (MNCs) in Ireland deploy practices aimed at the transfer of learning in their operations and the factors explaining inter-organisation variation in so doing. Using data from 260 MNCs, we find that comparatively large numbers of firms deploy practices to transfer learning in their Irish operations. Most notably, we find that almost half of all MNCs have a formal policy on organisational learning, while more than six in every ten MNCs in Ireland utilise three or more learning transfer mechanisms. In investigating inter-organisation variation with respect to these, we test a number of hypotheses involving nationality, sectoral, MNC (e.g. organisation structure) and HR factors. Our results show that the presence of international HR structures is a significant factor in explaining learning transfer in MNCs. We also find support that employment size, sector and integration between the MNC's global operations are useful variables in explaining variation in the deployment of practices on learning transfer in MNCs. © 2009 Blackwell Publishing Ltd.

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Sera from seals infected during the 1988 European epizootic of phocine distemper virus and sera from Canadian seals collected since 1972 have been tested for the presence of antibodies to morbillivirus. Approximately one third of the Canadian sera have been shown to contain anti-morbillivirus antibodies; the possibility that these populations of seals provided a source of infection for European seals is discussed.