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An apparent cancer cluster at a police detachment in a coastal British Columbia community was investigated. Police personnel suspected that the detachment building may have been a factor. Police personnel (20 current and 154 previous employees) associated with the detachment since 1963, the date of occupancy, were traced. After all 174 cases were contacted directly, or next of kin in case of death, a total of 16 cases of cancer or suspected cancers were reported. Of these 16, eight cases of cancer were confirmed through a cancer registry. Cancers included testicular, cervical, colon, skin (including melanoma), leukemias and lymphomas with an age range of diagnosis between 22 and 44 years. There was no evidence for an underlying event, factor or condition in the police building that could be attributed to the observed cancer cases. A possible association between these cancers and the use of police traffic radar is discussed.  相似文献   
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This article focuses on agricultural production in lift irrigation schemes along the White Nile in the Sudan. A comparison is drawn between the theoretical forecast and actual practical experience regarding the feasibility of transferring management from government-run parastatal organizations to private farmer organizations. Although the theoretical model indicates that farmers should be able to cover the cost of managing the river lift irrigation systems, field data show, however, that farmers growing wheat are barely able to break even. Even assuming a doubling of the present wheat yields, the cash surplus earned would only suffice for fuel to operate the pumps. Under these circumstances, it is not surprising that, contrary to government expectations, the private sector has been unenthusiastic about taking over management of White Nile river lift schemes. The lessons that emerge from this study indicate that unplanned and rapid withdrawal of state management can lead to negative results. The transfer of management responsibility for the river pumps does not appear to influence economic performance considerably, which depends on the wider context of the country's economic, political and institutional environment, within which the agricultural sector functions.  相似文献   
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The applications of Freon-22 (R22) as a mobile phase and as a modifier in supercritical fluid chromatography were investigated. For the purpose of this investigation, the separation of eleven phenols listed by the United States Environmental Protection Agency as priority pollutants was studied. It was found that the use of neat R22 greatly reduced the retention times of the phenols compared with the use of neat carbon dioxide as mobile phase. Satisfactory separation of all the eleven phenols could be achieved using 5% R22 as modifier in carbon dioxide. The promising results obtained in this preliminary investigation indicate the potential for the use of R22 in supercritical fluid separation processes.  相似文献   
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Summary In the UK, particularly post-Second World War, urban renewal and decongestion programmes created peripheral housing estates. From the beginning these estates were not endowed with any sustaining social and economic life. Moreover, most of the residents were in the lower percentile of the urban poor, as well as being disadvantaged from a multiple perspective. Over the years, these estates have deteriorated socially, environmentally and economically. A number of limited efforts made in the past to improve the general well-being of the residents have not achieved appreciable success.In recent times, it has been recognised that only by a comprehensive approach can the peripheral estates be regenerated (or generated?). The New Life for Urban Scotland programme is aimed at doing this. This paper attempts to evaluate the impact of the programme of environmental improvement in Castlemilk and Ferguslie Park, both peripheral housing estates on the outskirts of Glasgow, Scotland. The impact areas studied are: land-use pattern and environmental quality; retail and shopping facility development; leisure and recreation; roads, streetscape and local transport services; environmental improvement expenditure. Some possible improvements in the programme are proposed for the future.Dr Sam C. Ofori undertook this study as part of a Master's Thesis with the School of Planning at the University of Central England.  相似文献   
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The hepatoprotective potential of a herbal mixture was evaluated against CCl4 induced liver injury in Swiss albino mice. Liv 52, a commercially available polyherbal hepatoprotective drug was evaluated for comparison. The potential toxicity of the above herbal hepatoprotective agents was also compared. It was observed that there was a reduction in the enzyme biomarkers (Aspartate and Alanine Transaminase) of liver injury in the herbal mixture treated groups, which was similar to the reduction initiated by Liv 52. An increase in glutathione was observed in the herbal mixture treated groups and it was assumed that the herbal mixture protects the liver by virtue of its antioxidant nature along with high regeneration initiation potential. From the study it is also concluded that the herbal mixture is safer than Liv 52.  相似文献   
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