Evaluation of canine training aids containment for homemade explosive and components by headspace analysis and canine testing

While canines are most commonly trained to detect traditional explosives, such as nitroaromatics and smokeless powders, homemade explosives (HMEs), such as fuel–oxidizer mixtures, are arguably a greater threat. As such, it is imperative that canines are sufficiently trained in the detection of such HMEs. The training aid delivery device (TADD) is a primary containment device that has been used to house HMEs and HME components for canine detection training purposes. This research assesses the odor release from HME components, ammonium nitrate (AN), urea nitrate (UN), and potassium chlorate (PC), housed in TADDs. Canine odor recognition tests (ORTs) were used with analytical data to determine the detectability of TADDs containing AN, UN, or PC. Headspace analysis by gas chromatography/mass spectrometry (GC/MS) with solid-phase microextraction (SPME) or online cryotrapping were used to measure ammonia or chlorine, as well as other unwanted odorants, emanating from bulk AN, UN, and PC in TADDs over 28 weeks. The analytical data showed variation in the amount of ammonia and chlorine over time, with ammonia from AN and UN decreasing slowly over time and the abundance of chlorine from PC TADDs dependent on the frequency of exposure to ambient air. Even with these variations in odor abundance, canines previously trained to detect bulk explosive HME components were able to detect all three targets in glass and plastic TADDs for at least 18 months after loading. Detection proficiency ranged from 64% to 100% and was not found to be dependent on either age of material.     

Gay rights activism: collection action frames,networks, and protesting among gays,lesbians, and bisexuals

While sexual minorities have produced large and efficacious social movements in many countries, there are few systematic studies on why gays and lesbians join these movements. To address this void, this study created a unique sample of activist and non-activist listservs to identify some factors that inspired greater involvement in protests for gay and lesbian equality (n?=?285). Through the use of binary logistic regression, this study highlights the importance of several contextual, framing, and demographic variables on the protesting actions of sexual minorities. In particular, the act of protesting for gay and lesbian rights was predicted by involvement in voluntary groups, the concealment of sexual orientations, a concern over institutionalized heterosexism, and the internalizing several sorts of activist identities. Finally, racial background, but not gender, age, or economic factors, was associated with attendance at gay and lesbian rights demonstrations.     

University reputation and technology commercialization: evidence from nanoscale science

We study how the scientific reputations and technology transfer policies of universities affect patenting by university researchers, with particular regard to whether they assign patent ownership to their university or to an outside firm. Using data on the career output of over 33,000 researchers in nanosciences, we find a strongly positive relationship of university reputation in nanosciences with the number of university-assigned patents, but almost a negligible association with firm-assignment of patents. University technology transfer office resources are related positively to both types of patents, but with diminishing returns. In contrast, the share of license revenue offered upfront to researchers is positively associated with university-assigned patents, but negatively related to firm-assigned patents. Taken together, our results suggest that universities that streamline their technology transfer efforts and improve their research reputation through support for basic research will see long-term success in technology commercialization.     

Actuarial risk assessment: Reflections on an emerging social-scientific tool

The purpose of this paper is to highlight recent developments in the practice of empirical social research, paying particular attention to the relationship between social-science practice, social-control strategies, and the role of interpretive frame-works. The essay describes how the social-scientific emphasis on quantification within a value-neutral framework corresponds to an overall reluctance within the social sciences to evaluate the phenomena of social life within an historical and moral context. Within this framework, it is argued that actuarial risk assessment, as a social science practice, meets the managerial needs of advanced industrial societies by legitimating interpretive frameworks which focus primarily on prediction as the main criterion in understanding social processes and by producing concrete technologies which facilitate the management effort. This essay calls upon quantitative social scientists to reflect upon the ways in which our practices and products may inadvertently project value positions that ought not be promoted without critical evaluation. This essay won first place in the 1998 American Society of Criminology Graduate Student Paper Competition sponsored by the Division on Critical Criminology. I wish to thank Drs. Patrick Akard, Henry J. Steadman, and John Monahan for commenting on an earlier draft of this essay.     

Dawns, Twilights, and Transitions: Postmodern Theories, Politics, and Challenges

The postmodern turn which has so marked social and cultural theory also involves conflicts between modern and postmodern politics. In this essay, we articulate the differences between modern and postmodern politics and argue against one-sided positions that dogmatically reject one tradition or the other in favor of partisanship for either the modern or the postmodern. Arguing for a politics of alliance and solidarity, we claim that this project is best served by drawing on the most progressive elements of both the modern and postmodern traditions. Developing a new politics involves overcoming the limitations of certain versions of modern politics and postmodern identity politics in order to develop a politics of alliance and solidarity equal to the challenges of the new millennium.