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Michael G. Campana Terence Robinson Paula F. Campos Noreen Tuross 《Journal of archaeological science》2013,40(2):1421-1424
Buckley et al. (2010) recently identified a Type I collagen (COL1A2) peptide sequence that discriminates between sheep and goat species. The exact location of this peptide sequence on the genome was not reported. We identified the sequence's location and developed a PCR based approach that amplifies the diagnostic sequence from exon 41 of the COL1A2 gene. Using DNA analysis, we confirmed that this COL1A2 peptide discriminates between goat and sheep species reliably, but is limited as a more general phylogenetic marker. 相似文献
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CONSUMERS AS COPRODUCERS OF PUBLIC SERVICES: SOME ECONOMIC AND INSTITUTIONAL CONSIDERATIONS 总被引:1,自引:0,他引:1
Roger B. Parks Paula C. Baker Larry Kiser Ronald Oakerson Elinor Ostrom Vincent Ostrom Stephen L. Percy Martha B. Vandivort Gordon P. Whitaker Rick Wilson 《政策研究杂志》1981,9(7):1001-1011
The concept of coproduction of public services has captured increased attention as a potential means of increasing the effectiveness and efficiency of local government. In this article we explore the concept of coproduction in an effort to sharpen the definition of that concept and add rigor to our understanding of the effects of coproduction in local service delivery and the processes by which coproductive activity occurs. 相似文献
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Naturalists at Sea: scientific travellers from Dampier to Darwin by Glyn Williams 309 pp, 39 plates (some in colour), 1 map Yale University Press, 47 Bedford Square,WC1B 3DP, 2013, £25 (hbk), ISBN 978‐0300180732
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Margaret Deacon 《International Journal of Nautical Archaeology》2015,44(1):230-232
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Roger Deacon 《European Legacy》2006,11(2):121-138
This article develops a Foucauldian account of the rise of the modern school, on the basis of a thorough examination of all references to education in Foucault's work. It analyses the seventeenth-century origins of mass schooling and traces its development up to the nineteenth century. It identifies several overlapping stages in this multifaceted and largely contingent development, particularly a fundamental shift from a negative to a positive conception of the school. This Foucauldian understanding of the rise of schooling as a disciplinary technology suggests that an initial focus on the exclusion or confinement of disorderly groups was gradually superseded by a focus on the inclusion or “attachment” of diverse individuals and on the development of their potential. It concludes by cautioning against over-simplistic applications of Foucault's work to the field of education. 相似文献
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We extend the impact decomposition proposed by LeSage and Thomas-Agnan (2015) in the spatial interaction model to a more general framework, where the sets of origins and destinations can be different, and where the relevant attributes characterizing the origins do not coincide with those of the destinations. These extensions result in three flow data configurations which we study extensively: the square, the rectangular, and the noncartesian cases. We propose numerical simplifications to compute the impacts, avoiding the inversion of a large filter matrix. These simplifications considerably reduce computation time; they can also be useful for prediction. Furthermore, we define local measures for the intra, origin, destination and network effects. Interestingly, these local measures can be aggregated at different levels of analysis. Finally, we illustrate our methodology in a case study using remittance flows all over the world. 相似文献
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Using findings from a federally mandated statewide study of homelessness in the state of Iowa, this paper presents methodologies developed to address various aspects of homeless research, including enumeration of the population, screening for reporting duplications, estimating the annual number of incidents of homelessness, and exploring county-level estimates of homelessness. After implementing an algorithm to eliminate duplicate reporting, and using the baseline unduplicated reported number of homeless persons, a statewide estimate of the number of homeless individuals was derived. Following further adjustments for differences in agency reporting practices and after extrapolating for nonreported time periods, we estimated the number of Unique incidents of homelessness experienced in the state during the year of the study (1997). The policy implications of these findings are discussed. 相似文献