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Reinelt  Lorin  Horner  Richard  Azous  Amanda 《Urban Ecosystems》1998,2(4):219-236
This paper summarizes the results of the Puget Sound Wetlands and Stormwater Management Research Program, which examined the impacts of urban stormwater on wetlands. Results are presented for data collected between 1988 and 1995 for 19 wetlands, showing changes in wetland hydrology resulting from urban conversion and the subsequent impacts on plant and amphibian communities. The amount of watershed imperviousness, the forested area, and the degree of outlet constriction were found to be the most significant factors affecting wetland hydroperiods. As hydroperiods changed, plant communities shifted towards communities adaptable to the new hydrograph. Wetlands with water level fluctuation above 20 cm resulted in lower plant richness in the emergent and scrub-shrub zones. Similarly, wetlands with water level fluctuation greater than 20 cm were significantly more likely to have low amphibian richness of three or fewer species. A primary goal of the research program was to employ the results to improve the management of both wetlands and stormwater in urban areas. Hydrologic guidelines were applied to King County's basin planning and master drainage planning efforts. Controls that focused on minimizing impervious surfaces and maximizing forest retention in the wetland watershed proved to be the most widely usable strategy.  相似文献   

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In a number of countries in Western Europe and in North America homelessness has come to the fore once again over the last 15-20 years, a fact to which many books and surveys bear witness. In a number of countries, organizations have been formed both for and by the homeless.1Newspapers sold on the street to promote the cause of the homeless are becoming an increasingly common sight.2Despite this trend there is at present still no generally acknowledged explanation of the cause of homelessness and we do not know whether the causes are the same in the social democratic European welfare states, in the USA and Canada, or in countries with a poorly developed welfare system. Nor do we know whether homelessness for the individual is a short-term or permanent state. This article highlights Swedish homelessness. It is based on the results of a research project which I ran from 1993 to 1998.3The article has three objectives. First, I wish to provide a brief presentation of the issue of Swedish homelessness using, among other things, a study of how the media have dealt with the issue. Secondly, I wish to discuss the pattern of homelessness in Sweden and provide an explanation of why the length of homelessness varies. Thirdly, I wish to highlight the question of how we explain why people can be homeless in a country where social welfare and housing policies have, decade after decade, been directed at eradicating housing problems. The last two questions were highlighted in a case study conducted by me in Malmö, the country's third largest city.  相似文献   

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The present study examines the influence of external debt on the change in the proportion of the total population living in urban slum conditions in the less developed countries between 1990 and 2010, drawing from a political economy of the world-system theoretical perspective. Ordinary least squares panel regression illustrates external debt as a percent of gross national income has a statistically significant positive effect producing higher levels of urban slum growth. This result is recurrent across all developing countries but is particularly strong among sub-Saharan African nations. Further, urban population growth 1960–1990 exhibits a positive effect contributing to higher urban slum growth. The results support the hypothesis that external debt burden is an important factor contributing to higher levels of urban slum growth in the less developed countries between 1990 and 2010. This effect, moreover, is particularly strong among sub-Saharan African countries relative to developing countries within other regions of the world.  相似文献   

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The proliferation of reforms in public administration based on the principles and instruments of the “New Public Management” (NPM) have triggered protest from and collective action by many professional groups in various sectors (healthcare, education, justice, social work, research…) and raised questions about the future of professionals working in the public service, particularly as concerns their autonomy. However, after analyzing the situation, it seems that the opposition between NPM and certain professional groups is not the last word in the debate. Should changes be seen as the decline of professional groups and of their autonomy or as a transformation of professional models, an overhaul of professionalism, etc.? Such questions, which current events in France and Europe have brought to the fore, are food for ongoing sociological thought. They are broached here empirically, from the field, applying varied levels of analysis and research. The contributors to this dossier explore the different forms of tension existing between professional groups and NPM.  相似文献   

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This article applies the ecological theory of professions to analyze professional discourse in the World Press Photo (WPP) contest, an international photojournalism contest held in Amsterdam, the Netherlands. The article analyzes the content of 148 photojournalism works that received environmental awards in the period 1992 to 2011, the two decades after the 1992 Earth Summit in Rio de Janeiro. The article seeks to understand the representation and negotiation of objectivity and the claims of professional boundaries by the media of both developed and developing countries as well as non-governmental organizations (NGOs). It also seeks to interpret the professional discourse of the WPP in relation to ideologies and power dynamics in both journalism and global environmental politics. The results suggested that the media of developed countries dominated the discourse, and the conventional notion of journalistic objectivity remained intact. However, the results also showed that global environmental politics and the situation of journalism created openings for the media of developing countries and NGOs to enlarge jurisdictional claims in the area of natural disaster reporting and to challenge the conventional notion of objectivity. The results also showed that the conventional notion of objectivity did not necessarily hinder explanations of the complexity of environmental issues, which was made possible by choosing unique angles of storytelling, planning multiple shots, and using richly suggestive, naturalistic images.  相似文献   

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We examined how predator or prey presence, as well as local and landscape factors, influence the distribution of coyotes (Canis latrans) and white-tailed deer (Odocoileus virginianus) in the Chicago metropolitan area. We collected data for 2 years at 93 study sites along 3 transects of urbanization using motion-triggered cameras. Our primary objective was to determine the relationship among coyote and deer spatial and temporal distribution, habitat characteristics, and human activity using multi-season patch occupancy models. Coyote occupancy was most strongly linked to rates of site visitation by humans and dogs, and was more likely farther from the urban center, with coyote colonization of sites inversely related to road density, housing density, and human and dog site visitation. Deer more frequently occupied sites with high canopy cover near water sources and colonized smaller sites with reduced housing density and human and dog presence. Expected predator–prey dynamics were altered in this highly urban system. Though we predicted deer would avoid coyotes on the landscape based on an “ecology of fear” framework, deer and coyote occupancy showed a strong positive association. We suggest that a scarcity of quality habitat in urban areas may cause the species to co-occupy habitat despite potential fawn predation. Modifying human foot traffic in green spaces may represent a useful tool for management and conservation of large urban mammals.  相似文献   

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Previous research has found that there is a good deal of stability in departmental prestige, but has not considered its long-term dynamics. This paper investigates a hypothesis implied by some accounts in the sociology of science and organizational theory: that there will be a permanent component of prestige associated with the department or university. The data are the ratings of graduate departments of sociology between 1965 and 2007 using a measure of prestige constructed from hiring patterns. There is no evidence of a permanent component for individual departments, but there is evidence of a permanent difference between departments in “elite” universities and those in other universities. Despite change in rankings within each group, the difference between the groups remained constant over the period. That is, there appear to be enduring barriers that limit the mobility of individual departments.  相似文献   

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The U.S. recession of 2007–2009 saw unemployment rates for men rise by significantly more than those for women, resulting in the downturn’s characterization as a ‘mancession’. This paper uses data from the Census Bureau’s American Community Survey to reexamine gender-related dimensions of the 2007–2009 recession. Unlike most previous work, we analyze data that connects men’s and women’s employment status to that of their spouses. A difference-in-difference framework is used to characterize how labor-market outcomes for one spouse varied according to outcomes for the other. Results show that that employment rates of women whose husbands were non-employed rose significantly in the recession, while those for people in other situations held steady or fell—consistent with the view that women took on additional bread-winning responsibilities to make up for lost income. However, probabilities of non-participation did not rise by more for men with working wives than they did for other men, casting doubt on ideas that men in this situation made weaker efforts to return to work because they could count on their wives’ paychecks to support the household.  相似文献   

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John Perkins was the most senior black officer in the Royal Navy during the American War of Independence and the French Revolutionary and Napoleonic Wars. He rose through the ranks from a carpenter’s enslaved servant in 1759 to post-captain in 1800, and went on to be one of the very first British officials to land in newly independent Haiti in 1804. His career as a spy, gun-runner, naval officer and land owner was one of almost implausible adventure and speaks to the capacity of the maritime service to subvert race and slavery in the Caribbean. His very uniqueness, however, highlights the profound challenges for slaves and ex-slaves in trying to remake themselves as free people.  相似文献   

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In this article, we demonstrate how the cultural conceptions of a team of five researchers from different cultural and national backgrounds can be used as a source of knowledge during a collective, self‐reflexive analytical process. While collectively analysing texts describing daily life produced by first‐grade children and their parents in China, Norway, South Africa and the United States, the research team engaged in a collectively negotiated analytical process, which we refer to as an ‘analytic negotiating method’. The strength of this process rests on the ability to examine critically the boundaries between the researcher's contextual conceptions and conceptions derived from the texts. Engaging in this kind of negotiated analytical process contributes to scholarship by working towards a level of self‐reflexivity that makes the link between empirical data and researcher interpretation more transparent and produces a sensitivity to context that allows insights into the conceptions of childhood that operate cross‐culturally.  相似文献   

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This paper considers a topic that has received scant attention in the historiography of public relations: official attempts to manage the press in Britain in the Houses of Parliament in the eighteenth and nineteenth centuries. Existing accounts of the emergence of government public relations in the UK have tended to focus on the civil service in the first half of the twentieth century, but this article sheds light on a series of earlier developments, including the allocation of seats for reporters in the viewing gallery of the Commons in 1803, the construction of dedicated Reporters’ Galleries in both parliamentary chambers in 1847–52 and the creation of a Westminster Lobby in 1884. Taken together, these reforms improved journalists’ access to parliament in an era in which direct governmental control over newspapers lapsed. Yet, they also allowed politicians to influence media commentary by determining who was permitted access to parliament and what type of content made its way into print. A case can thus be made that Westminster, not Whitehall, played host to the earliest official attempts to manage the media in Britain, and this has important repercussions for current understandings of public relations history.  相似文献   

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In spite of the belief instilled by the New Public Management reforms that nonprofit organizations (NPOs) can benefit from more management, more measurement and more market practices, systematic knowledge on the organizational effects of NPOs incorporating business practices in their day‐to‐day functioning remains absent to date. This research note addresses this limitation by reviewing 49 research articles. The focus lies on the redefinition of nonprofits' mission and income streams, changing governance arrangements and shifting management practices. We find that, despite numerous detrimental effects cited in the literature, (a) generating commercial income can contribute to the financial stability of NPOs, and (b) hybridization towards the market domain can strengthen the organizational legitimacy of NPOs, suggesting that imitating for‐profit enterprises might contribute to nonprofit functioning in perception, rather than in practice.  相似文献   

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This longitudinal study analyses gender and the blurring boundaries of work during prolonged telework, utilising data gathered during the different phases of the COVID-19 pandemic. The pandemic caused a major change in the knowledge work sector, which has characteristically been more prone to work leaking into other parts of life. The study examines the blurring boundaries of telework: between time and place, care and housework, and emotional, social, spiritual and aesthetic labour. The experiences of different genders regarding the blurring boundaries of work during long-term telework are scrutinised using a mixed methods approach, analysing two surveys (Autumn 2020: N = 87, and Autumn 2021: N = 94) conducted longitudinally in a consulting company operating in Finland. There were several gendered differences in the reported forms of labour, which contribute to the blurring boundaries of work. Some boundary blurring remained the same during the study, while some fluctuated. The study also showed how the gendered practices around the blurring boundaries of work transformed during prolonged telework. Blurring boundaries of work and attempts to establish boundaries became partially gendered, as gender and life situation were reflected in knowledge workers' experiences of teleworking.  相似文献   

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Japan is famous for long working hours. For decades the Japanese government has tried to influence how people spend their free time. In 5-yearly surveys since 1986 the government has surveyed ??quality of life,?? gauging how much time people spend daily in various activities, including ??leisure.?? Analyzing results from these time use surveys, from 2006 back to 1986, and controlling for labor market conditions, this study determines whether time spent on leisure activities has actually changed. Gains in some types of leisure have been fleeting. Yet in other respects leisure has been enhanced, with significant increases occurring in active recreational pastimes. Nevertheless, leisure remains elusive for mid-career employees. Moreover, there is a pronounced gender gap for leisure time.  相似文献   

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