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261.
262.
Scott L. Greer 《Democratization》2016,23(4):613-633
Much of the literature on democratic transitions and ethnic conflict focuses on the role of elites, whether as constructive contributors to ethnic harmony and pacted transitions, or as fomenters of disharmony. What these accounts often fail to take into account is the extent to which the existence of political elites is a variable in itself, particularly when their power bases are not organizations like an army but rather nations or classes. The article develops an analysis of how competition for scarce militants and the demands of organizing them shapes the power and importance of elites. It does this through a case study of Catalonia in the years preceding the Spanish transition. During those years Catalonia, both a stateless nation and a potentially divided society, was the site of organizing from the left and right that nearly monopolized militants and channelled their activity into autonomist, inclusive forms of nationalist mobilization that stifled attempts at internal polarization while creating elites who could negotiate on Catalonia's behalf in the transition. In other words, the ability of moderate Catalan nationalists to organize before the transition explains their ability to represent Catalonia and control its fissures later, and contributes to explaining the success of Catalonia as a case of peaceful multinational coexistence. 相似文献
263.
Ryan Spotts M.S. L. Scott Chumbley Ph.D. Laura Ekstrand M.S. Song Zhang Ph.D. James Kreiser B.S. 《Journal of forensic sciences》2015,60(4):878-884
A blind study to determine whether virtual toolmarks created using a computer could be used to identify and characterize angle of incidence of physical toolmarks was conducted. Six sequentially manufactured screwdriver tips and one random screwdriver were used to create toolmarks at various angles. An apparatus controlled tool angle. Resultant toolmarks were randomly coded and sent to the researchers, who scanned both tips and toolmarks using an optical profilometer to obtain 3D topography data. Developed software was used to create virtual marks based on the tool topography data. Virtual marks generated at angles from 30 to 85° (5° increments) were compared to physical toolmarks using a statistical algorithm. Twenty of twenty toolmarks were correctly identified by the algorithm. On average, the algorithm misidentified the correct angle of incidence by ?6.12°. This study presents the results, their significance, and offers reasons for the average angular misidentification. 相似文献
264.
Scott D. Maddux Ph.D. Alexandria N. Sporleder B.S. Casey E. Burns B.A. 《Journal of forensic sciences》2015,60(4):966-973
Angled/curved zygomaxillary suture coding is widely employed in cranial assessments of ancestry. However, the efficacy of this method has not been extensively evaluated across diverse populations. In this study, zygomaxillary suture morphology was assessed on a total of 411 human crania from six populations (European, Native American, African, Asian, Arctic Circle, and Aboriginal Australian) using a novel 3D coordinate landmark method. Our results indicate a predominance of angled sutures among native peoples of the Arctic and North America (85–86%), a prevalence of curved sutures among Africans and Aboriginal Australians (77–81%), and essentially equal proportions of both configurations in Asians and Europeans (50–56%). Statistically, angled/curved coding generally discriminates poorly between groups, except when populations with antithetically high frequencies of the two configurations (e.g., African vs. Native American) are compared. Moreover, comparisons across previous studies reveal conflicting frequencies for many populations, further suggesting limited utility of this trait in ancestry estimation. 相似文献
265.
Samantha C. Robbins B.Sc. Scott I. Fairgrieve Ph.D. Tracy S. Oost B.Sc. 《Journal of forensic sciences》2015,60(Z1):S182-S187
This study examined the effects of fire on the features associated with saw marks in bone. Both class and individual characteristics were examined using stereomicroscopy and scanning electron microscopy (SEM). Twenty-four semifleshed Sus scrofa L. tibiae were sawed into three sections with the middle section having deep and shallow false starts. Twelve saw blades of varying age and type were each used to cut two tibiae. In each case, the first tibia was burned in an outdoor open fire to the point of partial calcination. The second tibia, our control, was macerated using a heated enzyme solution. Controls and burned specimens were examined for the following characteristics: breakaway spur, tooth hop, false start, exit chipping, tooth imprint, breakaway notch, pull out striae, kerf flare, and blade drift. In general, there was parity in the observed characteristics in the burned samples using the SEM and the stereomicroscope. SEM observation, however, provided enhanced images, with the addition of observing individual tooth imprints, previously not visible. Therefore, this study recommends using an SEM for the examination of saw cuts in burnt bone. 相似文献
266.
Andrew J. Schweighardt Ph.D. Courtney M. Tate Ph.D. Kristina A. Scott M.S. Kathryn A. Harper M.S. James M. Robertson Ph.D. 《Journal of forensic sciences》2015,60(1):157-165
STR typing of DNA evidence can identify the donor with a high power of discrimination but cannot identify the tissue origin of a body‐fluid stain. Using RNA to attribute a crime scene stain to a particular tissue may aid in reconstruction efforts. With blood from 10 donors, four DNA and RNA coextraction kits were evaluated by measuring yields and STR and mRNA profiles. T tests indicated some significant differences in kit performance. The Zymo Research ZR‐Duet? kit performed best based on average DNA (41.4 ng) and mRNA (4.07 ng) yields and was the only kit to provide complete DNA/RNA profiles for all samples. The consistency of this kit was challenged by data from additional blood and saliva donors. Further testing is advised before a superior kit is unequivocally chosen. Stand‐alone DNA or RNA purification generally offers higher yield, but coextraction may still allow successful STR profiling and tissue source identification. 相似文献
267.
U.S. regulations have historically focused on control of liquid polychlorinated biphenyls (PCBs). Nonliquid PCBs present as plasticizers in some construction materials were generally viewed as immobile and not of public health or environmental concern. By the 2000s, nonliquid PCBs began receiving significant regulatory attention, particularly in schools. More recently, PCB-containing construction materials at commercial and industrial facilities are also receiving increased attention. This article highlights the drivers that have led to the increased focus on nonliquid PCBs in construction materials and why this trend is likely to continue, and highlights some of the complexities that can arise for stakeholders. 相似文献
268.
Laura Ekstrand M.S. Song Zhang Ph.D. Taylor Grieve B.S. L. Scott Chumbley Ph.D. M. James Kreiser B.S. 《Journal of forensic sciences》2014,59(4):950-959
This study introduces a tool mark analysis approach based upon 3D scans of screwdriver tip and marked plate surfaces at the micrometer scale from an optical microscope. An open‐source 3D graphics software package is utilized to simulate the marking process as the projection of the tip's geometry in the direction of tool travel. The edge of this projection becomes a virtual tool mark that is compared to cross‐sections of the marked plate geometry using the statistical likelihood algorithm introduced by Chumbley et al. In a study with both sides of six screwdriver tips and 34 corresponding marks, the method distinguished known matches from known nonmatches with zero false‐positive matches and two false‐negative matches. For matches, it could predict the correct marking angle within ±5–10°. Individual comparisons could be made in seconds on a desktop computer, suggesting that the method could save time for examiners. 相似文献
269.
Scott A. Fritzen 《公共行政管理与发展》2007,27(1):13-25
International donors, long‐standing supporters of decentralisation reforms in developing countries, often face the challenge of aligning programme assistance to the great variety of country governance settings in which many operate. This article presents a framework for assessing the implications of governance and institutional context for a range of programming challenges, with particular reference to the challenge of decentralised programming. The framework has three conceptual steps. Country governance and institutional change environments are first described in terms of how enabling governance capacities are for decentralised programming, and how rapid and predictable the rate of institutional change is. Second, these environmental considerations are associated with overall assistance modalities of donors, in areas such as the type of partners sought and interventions selected. Third, a range of options concerning the aims, scope and extent of decentralising programming are reviewed and linked to the diagnostic framework above. The framework is broadly derived from organisational contingency theory, which it is argued has been relatively neglected in the study of development administration due to a preponderance of analysis based on single‐case studies. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
270.