Animal Scavenging and Scattering and the Implications for Documenting the Deaths of Undocumented Border Crossers in the Sonoran Desert,

Since 1998, over 5500 people have died while attempting to cross the U.S.–Mexico border without authorization. These deaths have primarily occured in the Arizona desert. Despite the high volume of deaths, little experimental work has been conducted on Sonoran Desert taphonomy. In this study, pig carcasses were used as proxies for human remains and placed in different depositional contexts (i.e., direct sunlight and shade) that replicate typical sites of migrant death. Decomposition was documented through daily site visits, motion-sensitive cameras and GIS mapping, while skeletal preservation was investigated through the collection of the remains and subsequent faunal analysis. Our results suggest that vultures and domestic dogs are underappreciated members of the Sonoran scavenging guild and may disperse skeletal remains and migrant possessions over 25 m from the site of death. The impact of scavengers and the desert environment on the decomposition process has significant implications for estimating death rates and identifying human remains along the Arizona/Mexico border.     

In Situ Identification of Semen Stains on Common Substrates via Raman Spectroscopy,,

The spectroscopic identification of body fluids in situ is a major objective in forensic science. This approach offers the confirmatory, nondestructive, rapid, and on‐scene identification of various body fluids. Although Raman spectroscopy has shown tremendous promise toward this goal in prior proof‐of‐concept experiments, a significant challenge which still remains is substrate interference. Here, an approach for detecting semen stains in situ on various substrates using Raman spectroscopy is explored. Simulated semen evidence was prepared on skin, glass, and various fabrics. Raman data were accumulated from stains without any pretreatment using a common confocal mapping spectrometer using 785 nm laser excitation. The results demonstrate that the spectroscopic interferences encountered by substrates can be reduced and eliminated using a combination of existing subtraction techniques and chemometric models. Heterogeneous substrates proved most challenging, however, automatic subtraction treatment, and location of fluid hotspots was able to elucidate a clear spectroscopic signature of semen in every instance.     

Francis Fukuyama and the Origins of Political Order and the State: A Historical Critique

This essay examines the model of state development put forward by Francis Fukuyama in his book, The Origins of Political Order. It argues that the evolutionary model used by Fukuyama experiences problems when it comes to dealing with specific historical examples. Its emphasis on the Qin state as the “first modern state” places an excessive emphasis on coercion and violence as the basis of the state. It attempts to relegate Rome to being equivalent to a chiefdom to fit it into his model whereas in reality Rome evolved differently to China and relied much more on cooperation and networks. England after 1688 provides another example of how Fukuyama's model is deficient. On this basis the paper argues that a universal evolutionary model is insufficient to explain political development and it is more appropriate to begin analysis with real political societies.     

Moving Up,Moving Out,or Going Nowhere? A Study of the Employment Patterns of Young Women and the Implications for Welfare Mothers

Conventional wisdom holds that women on welfare will be better off in the long run if they take a job, even if it means initially having less money to spend on their and their children's needs. Underlying this thinking is the belief that women who take low‐paying jobs will eventually move up to higher paying jobs either with their current employer or by changing employers. This paper examines the employment transitions of young women focusing on the likelihood that women who turn to the welfare system for support will make the transition from low‐paying to high‐paying jobs. The data are drawn from the National Longitudinal Survey of Youth (NLSY). Based on the experiences of women who never received welfare, an estimated one‐quarter of young women who received welfare could be firmly established in jobs paying more than $9.50 an hour by ages 26 and 27. An additional 40 percent would work steadily but in low‐paying jobs, and more than one‐third would work only sporadically. © 2001 by the Association for Public Policy Analysis and Management.