traffic between

Vodka Myths
$1.99

HIV Interventions: Biomedicine and the Traffic between Information and Flesh (In Vivo: The Cultural Mediations of Biomedical Science)
$25.00
HIV has changed in the presence of recent biomedical technologies. In particular, the development of anti-retroviral therapies (ARVs) for the treatment of HIV was a significant landmark in the history of the disease. Treatment with ARV drug regimens, which began in 1996, has enabled many thousands to live with the human immunodeficiency virus without progressing to AIDS. Yet ARVs have also been fraught with problems of regimen compliance, viral resistance, and iatrogenic disease. Besides intensifying the technological and ethical complexities of medicine, the drugs have also affected conceptions of risk and risk practices, in turn presenting new challenges for prevention. In order to devise safer, more effective forms of treatment, prevention, and possibly cure, Marsha Rosengarten asserts, it is essential to understand the relationship between HIV, medical technologies, and ideas about the body. HIV is an entity that constitutes and is constituted by complex material and informational environments. Recognition of this two-way traffic between the medical science of HIV and the expression of HIV in individuals and societies provides a novel basis for devising new or supplementary modes of thinking about and intervening in the epidemic. Through such diverse materials as drug advertisements, pill formulations, scientific articles, clinical trials, diagnostic test results, and viral imaging as well as interviews with those living and working with HIV, Rosengarten provides numerous demonstrations of how the entities comprising the HIV epidemic - bodies, viral resistance, diagnostic results, safe sex - are forged through dynamic relations. These various phenomena challenge existing prevention models and raise social and ethical concerns about the impact of additional technologies such as HIV pre- and post-exposure prophylaxis and the promise of vaccines and microbicides. HIV Interventions is relevant to those engaged in questions of the social and ethical dimensions of biomedicine, biotechnology, and genomics. Further, the specific focus of the project offers HIV practitioners - in the sciences and social sciences, in clinical research, clinical practice, social research, policy development and prevention education - new perspectives and analytic tools for intercepting a virus that continues to endure and, most critically, to change in the course of doing so.

Relation between traffic density and capacity drop at three freeway bottlenecks [An article from: Transportation Research Part B]
$7.95
This digital document is a journal article from Transportation Research Part B, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Three freeway bottlenecks, each with a distinct geometry, are shown to share a relation between vehicle density and losses in discharge flow. Each bottleneck suffered reductions in discharge once queues formed just upstream. This so-called ''capacity drop'' was related to the density measured over some extended-length freeway segment near each bottleneck. Pronounced increase in this density always preceded a capacity drop. For each bottleneck, the densities that coincided with capacity drops were reproducible. When normalized by a bottleneck's number of travel lanes and averaged across observation days, the density that coincided with capacity drop was even similar across bottlenecks. (These densities were nearly identical for two of the bottlenecks and the more notable difference observed for the third may be only an artifact of how the data were collected.) The findings indicate that traffic-responsive schemes to control density hold promise for increasing bottleneck discharge flows. Standardized control logic might even suffice for bottlenecks of various forms. With an eye toward future testing and deployment of such control schemes, we present and validate in an Appendix A to this paper a simple algorithm for the real-time measurement of density over freeway links of extended lengths.

Historic Print (XL): Traffic between the lines
$67.00
This is a museum quality, reproduction print on premium paper with archival/UV resistant inks. [ca. 1876]Part of Life studies of the great army." Gift1 drawing.(digital file from color film copy transparency) cph 3g12600 http://hdl.loc.gov/loc.pnp/cph.3g12600 (b&w film copy neg. LC-USZ62-1075) cph 3a04942 http://hdl.loc.gov/loc.pnp/cph.3a04942 (b&w film copy neg. LC-USZ62-6210) cph 3a09485 http://hdl.loc.gov/loc.pnp/cph.3a09485SOURCE: Library of Congress