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1.
Diane Hope Weixing Zhu Corinna Gries Jacob Oleson Jason Kaye Nancy B. Grimm Lawrence A. Baker 《Urban Ecosystems》2005,8(3-4):251-273
We explored variations in inorganic soil nitrogen (N) concentrations across metropolitan Phoenix, Arizona, and the surrounding
desert using a probability-based synoptic survey. Data were examined using spatial statistics on the entire region, as well
as for the desert and urban sites separately. Concentrations of both NO3-N and NH4-N were markedly higher and more heterogeneous amongst urban compared to desert soils. Regional variation in soil NO3-N concentration was best explained by latitude, land use history, population density, along with percent cover of impervious
surfaces and lawn, whereas soil NH4-N concentrations were related to only latitude and population density. Within the urban area, patterns in both soil NO3-N and NH4-N were best predicted by elevation, population density and type of irrigation in the surrounding neighborhood. Spatial autocorrelation
of soil NO3-N concentrations explained 49% of variation among desert sites but was absent between urban sites. We suggest that inorganic
soil N concentrations are controlled by a number of ‘local’ or ‘neighborhood’ human-related drivers in the city, rather than
factors related to an urban-rural gradient. 相似文献
2.
Quality and sustainability are both socially constructed, ambiguous terms, but they have not been heretofore linked in the rural studies literature. The “quality turn” has received particular attention from researchers for its potential to organize linkages among various forces in agrofood systems, providing more income to producers by appealing to affluent, reflexive consumers. A distinct line of rural research has attended to the challenge of agro-environmental pollution and regulation, but this research trajectory has been subsumed under the broader paradigm of sustainability. This article seeks to contribute to discussions about quality in the agrofood sector by analyzing the potential of fusing rural resource protection practices with place-based marketing of enhanced quality, drawing from an empirical study of the California winegrape industry. In several California commodities, agroecological partnerships are becoming the chief vehicle for extending sustainable agricultural practices. California's winegrape farmers have undertaken more partnerships to greater effect than those of any other US crop, and they are now discursively linking their sustainable farming practices, environmental quality, and wine quality. This marks a new linkage of two heretofore discrete social imaginaries. This article argues that “quality” is a term that can conceptually link increasing consumer demand for differentiated product taste with increasing regulatory pressure for environmental protection. Synergistic benefits from such a linkage have the potential to strengthen rural development initiatives. Making progress toward sustainability requires collective action on the part of producers, and in some commodities, may mesh well with efforts to enhance foodstuff quality. 相似文献
3.
The theory of incapacitation involves reducing an offender's ability or capacity to commit further crimes. Capital punishment accomplishes this goal. An executed murderer never murders again. However, we do not execute all murderers, only capital murderers. This policy produces several research questions. Do capital murderers present a special risk to society? Are capital murderers more likely to murder or commit other violent crimes again than other murderers or the average citizen? To answer these questions, many states require a prediction of future dangerousness of a newly convicted murderer. To what extent has the judgment of future dangerousness matched actuarial data of subsequent murders and serious crimes? Using a secondary analysis, this investigation attempted to assemble available data of postconviction dangerousness of death sentenced capital murderers to create a more comprehensive actuarial account of subsequent dangerousness and to present the data in a common format used by the Federal Bureau of Investigation and the Bureau of Justice Statistics. Across 14 studies identified with relevant data, there were 13 instances of subsequent murder and 462 serious crime or prison rule violations. 相似文献
4.
Beryllium is the strongest of the lightweight metals. Used primarily in military applications prior to the end of the Cold War, beryllium is finding new applications in many commercial products, including computers, telecommunication equipment, and consumer and automotive electronics. The use of beryllium in nondefense consumer applications is of concern because beryllium is toxic. Inhalation of beryllium dust or vapor causes a chronic lung disease in some individuals at concentrations as low as 0.01 microg/m3 in air. As beryllium enters wider commerce, it is prudent to ask what risks this might present to the general public and to workers downstream of the beryllium materials industry. We address this question by evaluating the potential for beryllium exposure from the manufacturing, use, recycle, and disposal of beryllium-containing products. Combining a market study with a qualitative exposure analysis, we determine which beryllium applications and life cycle phases have the largest exposure potential. Our analysis suggests that use and maintenance of the most common types of beryllium-containing products do not result in any obvious exposures of concern, and that maintenance activities result in greater exposures than product use. Product disposal has potential to present significant individual risks, but uncertainties concerning current and future routes of product disposal make it difficult to be definitive. Overall, additional exposure and dose-response data are needed to evaluate both the health significance of many exposure scenarios, and the adequacy of existing regulations to protect workers and the public. Although public exposures to beryllium and public awareness and concern regarding beryllium risks are currently low, beryllium risks have psychometric qualities that may lead to rapidly heightened public concern. 相似文献
5.
This study investigated factors affecting the adjustment of parentally bereaved children by reviewing existing literature and comparing it to observations made by professional social workers. Interviewees had between 1 1/2 and 22 years of experience in counseling bereaved children. The specific factors examined were age and sex of the bereaved child, circumstances of the death, and adjustment of remaining caregiver. Participants (n = 5) responded to an interview instrument specifically designed for this study which contained seven in-depth, open-ended questions. Participants’ replies were mostly in accordance with the literature, but also generated some new perspectives that had not been previously considered for this study and had not appeared in the literature. This study has implications for practice with parentally bereaved children and their surviving caregivers.Rebecca M. Hope, LCSW, Outpatient Clinician, New River Valley Community Services, 700 University City Boulevard, Blacksburg, VA 24060.Diane M. Hodge, Ph.D. is an Associate Professor of Social Work, Radford University, P.O. Box 6958, Radford, VA 24141; e-mail: dmhodge@radford.eduAddress correspondence to Rebecca M. Hope, LCSW, Outpatient Clinician, New River Valley Community Services, 700 University City Boulevard, Blacksburg, VA 24060; e-mail: rmhope@verizon.net 相似文献
6.
Going Global: Transforming Relief and Development NGOs, by Marc Linberg and Coralie Bryant. Bloomfield, Conn.: Kumarian Press, 2001. 271 pp., $25.95 cloth. Towards Financial Self‐Reliance: A Handbook of Resource Mobilization for Civil Society Organizations in the South, by Richard Holloway. London: Earthscan, 2001. 233 pp., $25.00 cloth. 相似文献
7.
The aim of this paper is to measure the effects on household composition of changes in demographic events, e.g. mortality, fertility, marriage, divorce. British household data are taken from the General Household Survey and aged by simulation to 2001 using a ‘Most Likely’ model. Subsequently different assumptions of each demographic event are taken from 1991 so that the effects of perturbations within each event can be studied. Special features of the simulation model are the differentiations between cohabitation and marriage and separation and divorce, and the detailed breakdowns of household types such as lone parents into single and previously married women and men with children aged 0–4, 5–15 and 16 and over. 相似文献
8.
This paper considers the significance of self-organization for black and minority workers in trade unions. It embodies a review of the theoretical and empirical evidence in support of black self-organization within unions; that is, a strategy of relative autonomy rather than separatism or submersion within a race-blind union. The theoretical support is derived from arguments concerning identity, participation and power. Much of the empirical material is based upon interviews with black and white lay members and shop stewards from three branches (‘Helthten’, ‘Shaften’ and ‘Mounten’) of the National and Local Government Officers union (NALGO) and with NALGO national officials between 1989 and 1990. 相似文献
9.
10.
Keith Tester 《The Sociological review》1998,46(1):95-114
Søren Kierkegaard is widely read in the disciplinary spheres of philosophy and theology. However, the sociological resonance of some of his work has been overlooked. This paper seeks to introduce aspects of Kierkegaard's account of 'the present age' to a sociological audience. Kierkegaard's concerns are explored in the context of themes and issues raised by Max Weber. The paper has two themes. First, the paper uses the example of Kierkegaard to explore the relationship of the Protestant Ethic (which is identified as a mode of the production of the personality of the individual) with the Spirit of Capitalism (which is identified as a life order). Second, the paper outlines aspects of Kierkegaard's diagnosis of 'the present age' which might be of interest to a sociological audience. 相似文献